WorldWideScience

Sample records for technologies semi-annual status

  1. MHD Technology Transfer, Integration and Review Committee. Fifth semi-annual status report, April 1990--September 1990

    Energy Technology Data Exchange (ETDEWEB)

    1992-01-01

    This fifth semi-annual status report of the MHD Technology Transfer, Integration, and Review Committee (TTIRC) summarizes activities of the TTIRC during the period April 1990 through September 1990. It includes summaries and minutes of committee meetings, progress summaries of ongoing Proof-of-Concept (POC) contracts, discussions pertaining to technical integration issues in the POC program, and planned activities for the next six months.

  2. MHD Technology Transfer, Integration and Review Committee. Seventh semi-annual status report, April 1991--September 1991

    Energy Technology Data Exchange (ETDEWEB)

    1993-02-01

    This seventh semi-annual status report of the MHD Technology Transfer, Integration and Review Committee (TTIRC) summarizes activities of the TTIRC during the period April 1991 through September 1991. It includes a summary and minutes of the General Committee meeting, progress summaries of ongoing POC contracts, discussions pertaining to technical integration issues in the POC program, and planned activities for the next six months. The meeting included test plan with Western coal, seed regeneration economics, power management for the integrated topping cycle and status of the Clean Coal Technology Proposal activities. Appendices cover CDIF operations HRSR development, CFFF operations etc.

  3. MHD Technology Transfer, Integration and Review Committee. Seventh semi-annual status report, April 1991--September 1991

    Energy Technology Data Exchange (ETDEWEB)

    1993-02-01

    This seventh semi-annual status report of the MHD Technology Transfer, Integration and Review Committee (TTIRC) summarizes activities of the TTIRC during the period April 1991 through September 1991. It includes a summary and minutes of the General Committee meeting, progress summaries of ongoing POC contracts, discussions pertaining to technical integration issues in the POC program, and planned activities for the next six months. The meeting included test plan with Western coal, seed regeneration economics, power management for the integrated topping cycle and status of the Clean Coal Technology Proposal activities. Appendices cover CDIF operations HRSR development, CFFF operations etc.

  4. Semi-annual status report of the Canadian Nuclear Fuel Waste Management Program, April 1--September 30, 1991

    Energy Technology Data Exchange (ETDEWEB)

    Wright, E.D. [comp.

    1992-02-01

    This report is the eleventh in a series of semi-annual status reports on the research and development program for the safe management and disposal of Canada's nuclear fuel waste. it describes progress achieved in the three major subprograms, engineered systems, natural systems and performance assessment, from 1991 April 1 to September 30. It also gives a brief description of the activities being carried out in preparation for the public and governmental review of the disposal concept. Since 1987, this program has been jointly funded by AECL and Ontario Hydro under the auspices of the CANDU Owners Group (COG).

  5. Geothermal drilling ad completion technology development program. Semi-annual progress report, April-September 1979

    Energy Technology Data Exchange (ETDEWEB)

    Varnado, S.G. (ed.)

    1980-05-01

    The progress, status, and results of ongoing Research and Development (R and D) within the Geothermal Drilling and Completion Technology Development Program are described. The program emphasizes the development of geothermal drilling hardware, drilling fluids, and completion technology. Advanced drilling systems are also under development. The goals of the program are to develop the technology required to reduce well costs by 25% by 1982 and by 50% by 1986.

  6. Task 10 - technology development integration. Semi-annual report, April 1--September 30, 1996

    Energy Technology Data Exchange (ETDEWEB)

    Hendrikson, J.G.; Daly, D.J.

    1997-05-01

    The Energy and Environmental Research Center (EERC), in conjunction with the Waste Policy Institute (WPI), will identify and integrate new technologies to meet site-specific environmental management (EM) requirements at contaminated sites appropriate to U.S. Department of Energy (DOE) interests. This paper briefly reports overall progress for three activities: technology management, project management, and technology integration. Work performed over the reporting period has focused on providing logistical and administrative support. In addition, six monthly WPI reports to the EERC are included as appendices. The WPI reports contained detailed information for progress in each activity.

  7. Ceramic technology report. Semi-annual progress report, April 1994--September 1994

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, D.R.

    1995-06-01

    The Ceramic Technology Project was originally developed by the Department of Energy`s Office of Transportation Systems (OTS) in Energy Efficiency and Renewable Energy. This project, part of the OTS`s Materials Development Program, was developed to meet the ceramic technology requirements of the OTS`s automotive technology programs. Significant accomplishments in fabricating ceramic components for the Department of Energy (DOE), National Aeronautics and Space Administration (NASA), and Department of Defense (DoD) advanced heat engine programs have provided evidence that the operation of ceramic parts in high-temperature engine environments is feasible. However, these programs have also demonstrated that additional research is needed in materials and processing development, design methodology, and data base and life prediction before industry will have a sufficient technology base from which to produce reliable cost-effective ceramic engine components commercially. In response to extensive input from industry, the plan is to extend the engine types which were previously supported (advanced gas turbine and low-heat-rejection diesel engines) to include near-term (5-10 years) applications in conventional automobile and diesel truck engines. To facilitate the rapid transfer of this technology to U.S. industry, the major portion of the work is being done in the ceramic industry, with technological support from government laboratories, other industrial laboratories, and universities. A systematic approach to reducing the cost of components is envisioned. The work elements are as follows: economic cost modeling, ceramic machining, powder synthesis, alternative forming and densification processes, yield improvement, system design studies, standards development, low-expansion ceramics, and testing and data base development.

  8. SciDAC's Earth System Grid Center for Enabling Technologies Semi-Annual Progress Report for the Period April 1, 2009 through September 30, 2009

    Energy Technology Data Exchange (ETDEWEB)

    Williams, Dean N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Foster, I. T. [Argonne National Lab. (ANL), Argonne, IL (United States); Middleton, D. E. [National Center for Atmospheric Research (NCAR), Boulder, CO (United States)

    2009-10-15

    This report summarizes work carried out by the ESG-CET during the period April 1, 2009 through September 30, 2009. It includes discussion of highlights, overall progress, period goals, collaborations, papers, and presentations. To learn more about our project, and to find previous reports, please visit the Earth System Grid Center for Enabling Technologies (ESG-CET) website. This report will be forwarded to the DOE SciDAC program management, the Office of Biological and Environmental Research (OBER) program management, national and international collaborators and stakeholders (e.g., the Community Climate System Model (CCSM), the Intergovernmental Panel on Climate Change (IPCC) 5th Assessment Report (AR5), the Climate Science Computational End Station (CCES), the SciDAC II: A Scalable and Extensible Earth System Model for Climate Change Science, the North American Regional Climate Change Assessment Program (NARCCAP), and other wide-ranging climate model evaluation activities). During this semi-annual reporting period, the ESG-CET team continued its efforts to complete software components needed for the ESG Gateway and Data Node. These components include: Data Versioning, Data Replication, DataMover-Lite (DML) and Bulk Data Mover (BDM), Metrics, Product Services, and Security, all joining together to form ESG-CET's first beta release. The launch of the beta release is scheduled for late October with the installation of ESG Gateways at NCAR and LLNL/PCMDI. Using the developed ESG Data Publisher, the ESG II CMIP3 (IPCC AR4) data holdings - approximately 35 TB - will be among the first datasets to be published into the new ESG enterprise system. In addition, the NCAR's ESG II data holdings will also be published into the new system - approximately 200 TB. This period also saw the testing of the ESG Data Node at various collaboration sites, including: the British Atmospheric Data Center (BADC), the Max-Planck-Institute for Meteorology, the University of Tokyo

  9. Task 3.14 - demonstration of technologies for remote power generation in Alaska. Semi-annual report, July 1, 1996--December 31, 1996

    Energy Technology Data Exchange (ETDEWEB)

    Jones, M.L.

    1998-12-31

    This paper very briefly summarizes progress in the demonstration of a small (up to 6 MWe), environmentally acceptable electric generating system fueled by indigenous fuels and waste materials to serve power distribution systems typical of Alaskan Native communities. Two detailed appendices supplement the report. The project is focused on two primary technologies: (1) atmospheric fluidized bed combustion (AFBC), and (2) coalbed methane and coal-fired diesel technologies. Two sites have been selected as possible locations for an AFBC demonstration, and bid proposals are under review. The transfer of a coal-fired diesel clean coal demonstration project from Maryland to Fairbanks, Alaska was approved, and the environmental assessment has been initiated. Federal support for a fuel cell using coalbed methane is also being pursued. The appendices included in the report provide: (1) the status of the conceptual design study for a 600-kWe coal-fired cogeneration plant in McGrath, Alaska; and (2) a global market assessment of coalbed methane, fluidized-bed combustion, and coal-fired diesel technologies in remote applications.

  10. Semi-Annual Technical Progress Report of Radioisotope Power System Materials Production and Technology Program Tasks for April 1, 2002 Through September 20, 2002

    Energy Technology Data Exchange (ETDEWEB)

    Moore, J.P.

    2002-12-03

    The Office of Space and Defense Power Systems of the Department of Energy (DOE) provides Radioisotope Power Systems (RPS) for applications where conventional power systems are not feasible. For example, radioisotope thermoelectric generators were supplied by the DOE to the National Aeronautics and Space Administration for deep space missions including the Cassini Mission launched in October of 1997 to study the planet Saturn. The Oak Ridge National Laboratory (ORNL) has been involved in developing materials and technology and producing components for the DOE for more than three decades. For the Cassini Mission, for example, ORNL was involved in the production of carbon-bonded carbon fiber (CBCF) insulator sets, iridium alloy blanks and foil, and clad vent sets (CVS). This report has been divided into three sections to reflect program guidance from the Office of Space and Defense Power Systems for fiscal year (FY) 2002. The first section deals primarily with maintenance of the capability to produce flight quality (FQ) CBCF insulator sets, iridium alloy blanks and foil, and CVS. In all three cases, production maintenance is assured by the manufacture of limited quantities of FQ components. The second section deals with several technology activities to improve the manufacturing processes, characterize materials, or to develop technologies for new radioisotope power systems. The last section is dedicated to studies related to the production of {sup 238}Pu.

  11. Semi-Annual Technical Progress Report of the Radioisotope Power System Materials Production and Technology Program Tasks for September 2000 through March 2001

    Energy Technology Data Exchange (ETDEWEB)

    Moore, J.P.

    2001-05-22

    The Office of Space and Defense Power Systems of the Department of Energy (DOE) provides Radioisotope Power Systems (RPS) for applications where conventional power systems are not feasible. For example, radioisotope thermoelectric generators were supplied by the DOE to the National Aeronautics and Space Administration for deep space missions including the Cassini Mission launched in October of 1997 to study the planet Saturn. The Oak Ridge National Laboratory (ORNL) has been involved in developing materials and technology and producing components for the DOE for more than three decades. For the Cassini Mission, for example, ORNL was involved in the production of carbon-bonded carbon fiber (CBCF) insulator sets, iridium alloy blanks and foil, and clad vent sets (CVS) and weld shields (WS). This report has been divided into three sections to reflect program guidance from the Office of Space and Defense Power Systems for fiscal year (FY) 2001. The first section deals primarily with maintenance of the capability to produce flight quality (FQ) CBCF insulator sets, iridium alloy blanks and foil, CVS, and WS. In all three cases, production maintenance is assured by the manufacture of limited quantities of FQ components. The second section deals with several technology activities to improve the manufacturing processes, characterize materials. or to develop technologies for new radioisotope power systems. The last section is dedicated to studies related to the production of {sup 238}Pu.

  12. The development of coal-based technologies for Department of Defense facilities. Semi-annual report, March 28, 1996--September 27, 1996

    Energy Technology Data Exchange (ETDEWEB)

    Miller, B.G.; Pisupati, S.V.; Scarone, A.W. [and others

    1996-12-13

    The U.S. Department of Defense (DOD), through an Interagency Agreement with the U.S. Department of Energy (DOE), has initiated a three-phase program with the Consortium for Coal-Water Fuel Technology, with the aim of decreasing DOD`s reliance on imported oil by increasing its use of coal. The program is being conducted as a cooperative agreement between the Consortium and DOE. Activities this reporting period are summarized by phase. Phase I was completed on November 1, 1995. Work on Phase II focused on emissions reductions, coal beneficiation/preparation studies, and economic analyses of coal use. Emissions reductions investigations included continuing bench-scale tests to identify an NO{sub x} reduction catalyst which is appropriate for industrial boiler applications. In addition, installation of a ceramic filtering device on the demonstration boiler started. Also, a sodium bicarbonate duct injection system was procured for installation on the demonstration boiler. Work related to coal preparation and utilization, and the economic analysis was primarily focused on preparing the final report. Work in Phase III focused on coal preparation studies and economic analyses of coal use. Coal preparation studies were focused on continuing activities on particle size control, physical separations,surface-based separation processes, and dry processing. The economic study focused on community sensitivity to coal usage, regional/national economic impacts of new coal utilization technologies, and constructing a national energy portfolio.

  13. SciDAC's Earth System Grid Center for Enabling Technologies Semi-Annual Progress Report for the Period October 1, 2009 through March 31, 2010

    Energy Technology Data Exchange (ETDEWEB)

    Williams, Dean N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Foster, I. T. [Argonne National Lab. (ANL), Argonne, IL (United States); Middleton, D. E. [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); Ananthakrishnan, R. [Argonne National Lab. (ANL), Argonne, IL (United States); Siebenlist, F. [Argonne National Lab. (ANL), Argonne, IL (United States); Shoshani, A. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Sim, A. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Bell, G. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Drach, R. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Ahrens, J. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Jones, P. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Brown, D. [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); Chastang, J. [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); Cinquini, L. [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); Fox, P. [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); Harper, D. [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); Hook, N. [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); Nienhouse, E. [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); Strand, G. [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); West, P. [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); Wilcox, H. [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); Wilhelmi, N. [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); Zednik, S. [National Center for Atmospheric Research (NCAR), Boulder, CO (United States); Hankin, S. [National Oceanic and Atmospheric Administration (NOAA), Washington, DC (United States); Schweitzer, R. [National Oceanic and Atmospheric Administration (NOAA), Washington, DC (United States); Bernholdt, D. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Chen, M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Miller, R. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Shipman, G. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Wang, F. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Bharathi, S. [Univ. of Southern California, Marina Del Rey, CA (United States). Information Sciences Institute; Chervenak, A. [Univ. of Southern California, Marina Del Rey, CA (United States). Information Sciences Institute; Schuler, R. [Univ. of Southern California, Marina Del Rey, CA (United States). Information Sciences Institute; Su, M. [Univ. of Southern California, Marina Del Rey, CA (United States). Information Sciences Institute

    2010-04-21

    This report summarizes work carried out by the ESG-CET during the period October 1, 2009 through March 31, 2009. It includes discussion of highlights, overall progress, period goals, collaborations, papers, and presentations. To learn more about our project, and to find previous reports, please visit the Earth System Grid Center for Enabling Technologies (ESG-CET) website. This report will be forwarded to the DOE SciDAC program management, the Office of Biological and Environmental Research (OBER) program management, national and international collaborators and stakeholders (e.g., the Community Climate System Model (CCSM), the Intergovernmental Panel on Climate Change (IPCC) 5th Assessment Report (AR5), the Climate Science Computational End Station (CCES), the SciDAC II: A Scalable and Extensible Earth System Model for Climate Change Science, the North American Regional Climate Change Assessment Program (NARCCAP), and other wide-ranging climate model evaluation activities).

  14. 22 CFR 311.600 - Semi-annual compilation.

    Science.gov (United States)

    2010-04-01

    ... Senate and the Committee on Foreign Affairs of the House of Representatives or the Committees on Armed... 22 Foreign Relations 2 2010-04-01 2010-04-01 true Semi-annual compilation. 311.600 Section 311.600 Foreign Relations PEACE CORPS NEW RESTRICTIONS ON LOBBYING Agency Reports § 311.600 Semi-annual...

  15. 38 CFR 45.600 - Semi-annual compilation.

    Science.gov (United States)

    2010-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 2 2010-07-01 2010-07-01 false Semi-annual compilation. 45.600 Section 45.600 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS (CONTINUED) NEW RESTRICTIONS ON LOBBYING Agency Reports § 45.600 Semi-annual compilation. (a) The head...

  16. 22 CFR 519.600 - Semi-annual compilation.

    Science.gov (United States)

    2010-04-01

    ... Relations of the Senate and the Committee on Foreign Affairs of the House of Representatives or the... 22 Foreign Relations 2 2010-04-01 2010-04-01 true Semi-annual compilation. 519.600 Section 519.600 Foreign Relations BROADCASTING BOARD OF GOVERNORS NEW RESTRICTIONS ON LOBBYING Agency Reports § 519.600...

  17. 15 CFR 28.600 - Semi-annual compilation.

    Science.gov (United States)

    2010-01-01

    ... the Committee on Foreign Relations of the Senate and the Committee on Foreign Affairs of the House of... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Semi-annual compilation. 28.600 Section 28.600 Commerce and Foreign Trade Office of the Secretary of Commerce NEW RESTRICTIONS ON LOBBYING...

  18. 22 CFR 138.600 - Semi-annual compilation.

    Science.gov (United States)

    2010-04-01

    ... Relations of the Senate and the Committee on Foreign Affairs of the House of Representatives or the... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Semi-annual compilation. 138.600 Section 138.600 Foreign Relations DEPARTMENT OF STATE MISCELLANEOUS NEW RESTRICTIONS ON LOBBYING Agency Reports...

  19. 22 CFR 712.600 - Semi-annual compilation.

    Science.gov (United States)

    2010-04-01

    ... the Committee on Foreign Relations of the Senate and the Committee on Foreign Affairs of the House of... 22 Foreign Relations 2 2010-04-01 2010-04-01 true Semi-annual compilation. 712.600 Section 712.600 Foreign Relations OVERSEAS PRIVATE INVESTMENT CORPORATION ADMINISTRATIVE PROVISIONS NEW RESTRICTIONS ON...

  20. 22 CFR 227.600 - Semi-annual compilation.

    Science.gov (United States)

    2010-04-01

    ... Relations of the Senate and the Committee on Foreign Affairs of the House of Representatives or the... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Semi-annual compilation. 227.600 Section 227.600 Foreign Relations AGENCY FOR INTERNATIONAL DEVELOPMENT NEW RESTRICTIONS ON LOBBYING Agency Reports...

  1. 13 CFR 146.600 - Semi-annual compilation.

    Science.gov (United States)

    2010-01-01

    ... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false Semi-annual compilation. 146.600 Section 146.600 Business Credit and Assistance SMALL BUSINESS ADMINISTRATION NEW RESTRICTIONS ON LOBBYING.... (c) Information that involves intelligence matters shall be reported only to the Select Committee on...

  2. Task 1.13 -- Data collection and database development for clean coal technology by-product characteristics and management practices. Semi-annual report, July 1--December 31, 1996

    Energy Technology Data Exchange (ETDEWEB)

    Pflughoeft-Hassett, D.F.

    1997-08-01

    Information from DOE projects and commercial endeavors in fluidized-bed combustion and coal gasification is the focus of this task by the Energy and Environmental Research Center. The primary goal of this task is to provide an easily accessible compilation of characterization information on CCT (Clean Coal Technology) by-products to government agencies and industry to facilitate sound regulatory and management decisions. Supporting objectives are (1) to fully utilize information from previous DOE projects, (2) to coordinate with industry and other research groups, (3) to focus on by-products from pressurized fluidized-bed combustion (PFBC) and gasification, and (4) to provide information relevant to the EPA evaluation criteria for the Phase 2 decision.

  3. MODIS Science Team Member Semi-annual Report

    Science.gov (United States)

    Vermote, Eric; ElSaleous, Nazmi; Fisher, Paul; Karakos, Damianos; Ray, James; Vermeulen, Anne

    1998-01-01

    This paper presents a semi-annual report of the MODerate resolution imaging Spectroradiometer (MODIS) Science Team Members. The most important activities undertaken during this reporting period are the following: 1) Versions 2.1 and 2.2 surface reflectance L2/L3 DAAC/SDST delivery; 2) Version 2.0 1km and 250m VI product delivery (assist Arizona); 3) Version 2.1 surface reflectance L2 testing; 4) Land Synthetic data set generator improvements; 5) QA; 6) Surface reflectance error budget generation (SWAMP request); 7) SCF Hardware; 8) Aerosol transport modeling; 9) Aerosol optical depth retrieval from AVHRR data; 10) Aerosol characteristics retrieval from SeaWIFS/AVHRR fusioned data; 11) Validation activities; 12) Aerosol climatology; and 13) 6S code. The report includes summaries of the topics above.

  4. MRAM Technology Status

    Science.gov (United States)

    Heidecker, Jason

    2013-01-01

    Magnetoresistive Random Access Memory (MRAM) is much different from conventional types of memory like SRAM, DRAM, and Flash, where electric charge is used to store information. Instead of exploiting the charge of an electron, MRAM uses its spin to store data. This new type of electronics is known as "spintronics." The primary focus of this report is the current generation of MRAM technology, and its reliability, vendors, and space-readiness.

  5. Unconventional gas recovery program. Semi-annual report for the period ending September 30, 1979

    Energy Technology Data Exchange (ETDEWEB)

    Manilla, R.D. (ed.)

    1980-04-01

    This document is the third semi-annual report describing the technical progress of the US DOE projects directed at gas recovery from unconventional sources. Currently the program includes Methane Recovery from Coalbeds Project, Eastern Gas Shales Project, Western Gas Sands Project, and Geopressured Aquifers Project.

  6. Annual and semi-annual cycle of equatorial Atlantic circulation associated with basin mode resonance

    Science.gov (United States)

    Brandt, Peter; Claus, Martin; Greatbatch, Richard J.; Kopte, Robert; Toole, John M.; Johns, William E.; Böning, Claus W.

    2016-04-01

    Seasonal variability of the tropical Atlantic circulation is dominated by the annual cycle, but semi-annual variability is also pronounced, despite weak forcing at that period. Here we use multi-year, full depth velocity measurements from the central equatorial Atlantic to analyze the vertical structure of annual and semi-annual variations of zonal velocity. A baroclinic modal decomposition finds that the annual cycle is dominated by the 4th mode and the semi-annual cycle by the 2nd mode. Similar local behavior is found in a high-resolution general circulation model. This simulation reveals that the annual and semi-annual cycles of the respective dominant baroclinic modes are associated with characteristic basin-wide structures. Using an idealized linear reduced-gravity model to simulate the dynamics of individual baroclinic modes, it is shown that the observed circulation variability can be best explained by resonant equatorial basin modes. Companion simulations using the reduced-gravity model varying the basin geometry, i.e. square basin versus realistic coastlines, and forcing, i.e. spatially uniform versus spatially varying wind forcing, show a structural robustness of the simulated basin modes. A main focus of this study is the seasonal variability of the Equatorial Undercurrent (EUC) as identified in recent observational studies. Main characteristics of the observed EUC including seasonal variability of transport, core depth, and maximum core velocity can be explained by the linear superposition of the dominant equatorial basin modes as obtained from the reduced-gravity model.

  7. National Institute for Global Environmental Change. Semi-annual report, July 1, 1991--December 31, 1991

    Energy Technology Data Exchange (ETDEWEB)

    Werth, G.C.

    1992-04-01

    This document is the Semi-Annual Report of the National Institute for Global Environmental Change for the reporting period July 1 to December 31, 1991. The report is in two parts. Part I presents the mission of the Institute, examples of progress toward that mission, a brief description of the revised management plan, and the financial report. Part II presents the statements of the Regional Center Directors along with progress reports of the projects written by the researchers themselves.

  8. Technology status: Batteries and fuel cells

    Science.gov (United States)

    Fordyce, J. S.

    1978-01-01

    The current status of research and development programs on batteries and fuel cells and the technology goals being pursued are discussed. Emphasis is placed upon those technologies relevant to earth orbital electric energy storage applications.

  9. MHD Technology Transfer, Integration and Review Committee

    Energy Technology Data Exchange (ETDEWEB)

    1992-01-01

    This fifth semi-annual status report of the MHD Technology Transfer, Integration, and Review Committee (TTIRC) summarizes activities of the TTIRC during the period April 1990 through September 1990. It includes summaries and minutes of committee meetings, progress summaries of ongoing Proof-of-Concept (POC) contracts, discussions pertaining to technical integration issues in the POC program, and planned activities for the next six months.

  10. Thermionic fuel element technology status

    Science.gov (United States)

    Holland, J. W.; Horner, M. W.; Yang, L.

    1985-01-01

    The results of research, conducted between the mid-1960s and 1973, on the multiconverter thermionic fuel elements (TFEs) that comprise the reactor core of an SP-100 thermionic reactor system are presented. Fueled-emitter technology, insulator technology and cell and TFE assembly technology of the prototypical TFEs which were tested in-pile and out-of-pile during these years are described. The proto-TFEs have demonstrated reproducible performance within 5 percent and no premature failures within the 1.5 yr of operation (with projected 3-yr lifetimes). The two primary life-limiting factors had been identified as thermionic emitter dimensional increase due to interactions with the fuel and electrical insulator structural damage from fast neutrons. Multiple options for extending TFE lifetimes to 7 yr or longer are available and will be investigated in the 1984-1985 SP-100 program for resolution of critical technology issues. Design diagrams and test graphs are included.

  11. Fossil energy waste management. Technology status report

    Energy Technology Data Exchange (ETDEWEB)

    Bossart, S.J.; Newman, D.A.

    1995-02-01

    This report describes the current status and recent accomplishments of the Fossil Energy Waste Management (FE WM) projects sponsored by the Morgantown Energy Technology Center (METC) of the US Department of Energy (DOE). The primary goal of the Waste Management Program is to identify and develop optimal strategies to manage solid by-products from advanced coal technologies for the purpose of ensuring the competitiveness of advanced coal technologies as a future energy source. The projects in the Fossil Energy Waste Management Program are divided into three types of activities: Waste Characterization, Disposal Technologies, and Utilization Technologies. This technology status report includes a discussion on barriers to increased use of coal by-products. Also, the major technical and nontechnical challenges currently being addressed by the FE WM program are discussed. A bibliography of 96 citations and a list of project contacts is included if the reader is interested in obtaining additional information about the FE WM program.

  12. Lost circulation technology development status

    Energy Technology Data Exchange (ETDEWEB)

    Glowka, D.A.; Schafer, D.M.; Loeppke, G.E.; Scott, D.D.; Wernig, M.D.; Wright, E.K.

    1992-07-01

    Lost circulation is the loss of drilling fluid from the wellbore to fractures or pores in the rock formation. In geothermal drilling, lost circulation is often a serious problem that contributes greatly to the cost of the average geothermal well. The Lost Circulation Technology Development Program is sponsored at Sandia National Laboratories by the US Department of Energy. The goal of the program is to reduce lost circulation costs by 30--50% through the development of mitigation and characterization technology. This paper describes the technical progress made in this program during the period April 1991--March 1992. 8 refs.

  13. Semi-annual report of the Department of Energy, Office of Environmental Management, Quality Assessment Program

    Energy Technology Data Exchange (ETDEWEB)

    Greenlaw, P.D.

    1998-01-01

    This Quality Assessment Program (QAP) is designed to test the quality of the environmental measurements being reported to the Department of Energy by its contractors. Since 1976, real or synthetic environmental samples that have been prepared and thoroughly analyzed at the Environmental Measurements Laboratory (EML) have been distributed at first quarterly and then semi-annually to these contractors. Their results, which are returned to EML within 90 days, are compiled with EML`s results and are reported back to the participating contractors 30 days later. A summary of the reported results is available to the participants 4 days after the reporting deadline via the Internet at www.eml.doe.gov. This report presents the results from the analysis of the 47th set of environmental quality assessment samples (QAP XLVII) that were received on or before December 1, 1997.

  14. Semi-annual report of the Department of Energy, Office of Environmental Management, Quality Assessment Program

    Energy Technology Data Exchange (ETDEWEB)

    Sanderson, C.G.; Greenlaw, P.

    1996-02-01

    This report presents the results from the analysis of the 43rd set of environmental quality assessment samples (QAP XLIII) that were received on or before December 1, 1995. This Quality Assessment Program (QAP) is designed to test the quality of the environmental measurements being reported to the Department of Energy by its contractors. Since 1976, real or synthetic environmental samples that have been prepared and thoroughly analyzed at the Environmental Measurements Laboratory (EML) have been distributed at first quarterly and then semi-annually to these contractors. Their results, which are returned to EML within 90 days, are compiled with EML`s results and are reported back to the participating contractors 30 days later. A summary of the reported results is available to the participants 2 days after the reporting deadline via a modem-telephone connection to the EML computer.

  15. Status quo of supply technology

    Energy Technology Data Exchange (ETDEWEB)

    Noda, Shigeo

    1987-09-01

    Problems for gas supply function, activity of the Gas Association, and technological development mainly of the presented subjects are reported. According to the materials released by the Gas Associattion, demands for city gas by the 21st Century is expected to be rather high with 3.6% annual growth rate. It is premissed on an assumption that the superior quality of the city gas satisfying customer requirements would be further upgraded. The problems confronted by the supply function for this purpose are the pursuit for less cost, improvement in security, and stable gas supply. The Gas Association carried out research, investigation, preparation of standards, etc., and published instructive materials such as guide for main and branch piping, guide for supply piping, technical standards for gas related works, etc. It also has been endeavoring to popularize the use of polyethylene pipies, and studying the evaluation method for the renewal and repair of gas conduits and house regulator supply system, etc. The supply function has been working on the cutting dowm of costs, inprovement in security, and developing technologies such as underground probing radar, inteligent pipe locator, identifier for gas and water supply tubes, estimation of ground subsidence, inspection of inside of pipes by a television camera, etc. (1 tab)

  16. 49 CFR Appendix B to Part 40 - DOT Drug Testing Semi-Annual Laboratory Report to Employers

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 1 2010-10-01 2010-10-01 false DOT Drug Testing Semi-Annual Laboratory Report to... TRANSPORTATION WORKPLACE DRUG AND ALCOHOL TESTING PROGRAMS Pt. 40, App. B Appendix B to Part 40—DOT Drug Testing...) (b) Negative and Dilute (number) 3. Specimens Reported as Rejected for Testing (total number) By...

  17. 49 CFR Appendix C to Part 40 - DOT Drug Testing Semi-Annual Laboratory Report to DOT

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 1 2010-10-01 2010-10-01 false DOT Drug Testing Semi-Annual Laboratory Report to... TRANSPORTATION WORKPLACE DRUG AND ALCOHOL TESTING PROGRAMS Pt. 40, App. C Appendix C to Part 40—DOT Drug Testing... of Drug and Alcohol Policy and Compliance, W62-300, 1200 New Jersey Avenue, SE., Washington, DC 20590...

  18. 78 FR 31558 - Medicare Program; Second Semi-Annual Meeting of the Advisory Panel on Hospital Outpatient Payment...

    Science.gov (United States)

    2013-05-24

    ... CMS Central Office, Auditorium, 7500 Security Boulevard, Woodlawn, Maryland 21244-1850. Alternately... [CMS-1458-N] Medicare Program; Second Semi-Annual Meeting of the Advisory Panel on Hospital Outpatient Payment (HOP Panel) August 26-27, 2013 AGENCY: Centers for Medicare & Medicaid Services (CMS),...

  19. Technological status of organic photovoltaics (OPV)

    DEFF Research Database (Denmark)

    Carlé, Jon Eggert; Krebs, Frederik C

    2013-01-01

    This paper gives a technological status of organic and polymer photovoltaics (OPV) for both single and tandem junctions. We list the current state-of-the-art at the laboratory level for very small rigid and mostly vacuum processed devices to larger area flexible and printed devices. In comparison...

  20. Status and assessment of photovoltaic technologies

    Science.gov (United States)

    Kazmerski, L. L.

    The history and status of the current photovoltaic technologies are reviewed and evaluated. The problems and strengths of single-crystal, polycrystalline, and amorphous technologies are discussed, compared, and assessed. Single-junction and multiple-junction or tandem cell configurations are evaluated for performance, processing, and engineering criteria. Some emphasis is placed on the emerging thin film options for low cost terrestrial applications. The basic photovoltaic system building block, the solar cell, is discussed along with important module developments and problems. Future technology and research directions are provided for materials, cells, and modules.

  1. Status and assessment of photovoltaic technologies

    Energy Technology Data Exchange (ETDEWEB)

    Kazmerski, L.L. (Solar Energy Research Inst., Golden, CO (USA))

    1989-01-01

    The history and status of the current photovoltaic technologies are reviewed and evaluated. The problems and strengths of single-crystal, polycrystalline, and amorphous technologies are discussed, compared and assessed. Single-junction and multiple-junction or tandem cell configurations are evaluated for performance, processing, and engineering criteria. Some emphasis is placed on the emerging thin film options for low cost terrestrial applications. Discussions centre around the basic photovoltaic system building block, the solar cell, but important module developments and problems are cited. Future technology and research directions are provided for materials, cells, and modules. (author).

  2. Current Status of Concentrator Photovoltaic (CPV) Technology

    Energy Technology Data Exchange (ETDEWEB)

    Philipps, Simon P. [Fraunhofer Inst. for Solar Energy Systems ISE, Freiburg (Germany); Bett, Andreas W. [Fraunhofer Inst. for Solar Energy Systems ISE, Freiburg (Germany); Horowitz, Kelsey [National Renewable Energy Lab. (NREL), Golden, CO (United States); Kurtz, Sarah [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2015-12-01

    This report summarizes the status of the concentrator photovoltaic (CPV) market and industry as well as current trends in research and technology. This report is intended to guide research agendas for Fraunhofer ISE, the National Renewable Energy Laboratory (NREL), and other R&D organizations. Version 1.1 of this report includes recent progress in CPV. The recent record module efficiency of 38.9% at Concentrator Standard Test Conditions (CSTC) is an impressive result, demonstrating the continuing opportunity for CPV technology to improve. 38.9% at Concentrator Standard Test Conditions (CSTC) is an impressive result, demonstrating the continuing opportunity for CPV technology to improve. 38.9% at Concentrator Standard Test Conditions (CSTC) is an impressive result, demonstrating the continuing opportunity for CPV technology to improve. 38.9% at Concentrator Standard Test Conditions (CSTC) is an impressive result, demonstrating the continuing opportunity for CPV technology to improve.

  3. The status of fuel cell technology

    Energy Technology Data Exchange (ETDEWEB)

    O' Sullivan, J.B.

    1991-02-20

    This brief status report provides an introduction to what fuel cells are, why they are important, what uses have been made of them to date, the goals and timetables of current programs, and who the players are in this vital technology. Copies of most of the slides presented and additional diagrams are appended to this paper. Further details can be obtained from the comprehensive texts cited in the bibliography. 11 refs., 44 figs.

  4. Physical meaning of the equinoctial effect for semi-annual variation in geomagnetic activity

    Directory of Open Access Journals (Sweden)

    A. Yoshida

    2009-05-01

    Full Text Available Physical meaning of the equinoctial effect for semi-annual variation in geomagnetic activity is investigated based on the three-hourly am index and solar wind parameters. When the z component of the interplanetary magnetic field (IMF in geocentric solar magnetospheric (GSM coordinates is southward, am indices are well correlated with BsVx2, where Bs is the southward component of the IMF and Vx is the solar wind velocity in the sun-earth direction. The am-BsVx2 relationship, however, depends on the range of Vx2: the am in higher ranges of Vx2 tends to be larger than am in lower ranges of Vx2 for the same value of BsVx2 for both equinoctial and solstitial epochs. Using the data sets of the same Vx2 range, it is shown that distribution of points in the am-BsVx2 diagram at the solstitial epochs overlaps with that at the equinoctial epochs and the average am values in each BsVx2 bin in solstitial epochs are closely consistent with those in equinoctial epochs, if Vx2 for each point at solstices are reduced to Vx2sin2 (Ψ where Ψ is the geomagnetic colatitude of the sub-solar point. Further, it is shown that monthly averages of the am index in the long period is well correlated with the values of sin2(ψ for the middle day of each month. These findings indicate that the factor that contributes to the generation of geomagnetic disturbance is not the velocity of the solar wind, but the component of the solar wind velocity perpendicular to the dipole axis of the geomagnetic

  5. Iowa State Mining and Mineral Resources Research Institute: Semi-annual report, 1 July 1987--31 December 1987

    Energy Technology Data Exchange (ETDEWEB)

    Markuszewski, R.; Pedrick, J.

    1988-02-01

    This semi-annual report describes the activities of the Iowa State Mining and Mineral Resources Research Institute (ISMMRRI) at Iowa State University, Ames, Iowa, for the period of July 1, 1987 to December 31, 1987. Thirteen graduate research projects in the areas of Mineral Processing, Mining Engineering, Mineral Characterization, and Mined-Land Reclamation, and Fuel Science are described. The graduate students are associated with several different academic departments and are all minoring in Mineral Resources.

  6. METC Clean Coal Technology status -- 1995 update

    Energy Technology Data Exchange (ETDEWEB)

    Carpenter, L.K.

    1995-06-01

    The Department of Energy (DOE) Clean Coal Technology (CCT) Program is assisting the private sector by funding demonstration programs to validate that CCT technologies are a low-risk, environmentally attractive, cost-competitive option for utility and industrial users. Since 1987, DOE has awarded 45 CCT projects worth a total value of $7 billion (including more than $2.3 billion of DOE funding). Within the CCT Program, the Morgantown Energy Technology Center (METC) is responsible for 17 advanced power generation systems and major industrial applications. METC is an active partner in advancement of these technologies via direct CCT funding and via close cooperation and coordination of internal and external research and development activities. By their nature, METC projects are typically 6-10 years in duration and, in some cases, very complex in nature. However, as a result of strong commercial partnerships, progress in the development and commercialization of major utility and industrial projects has, and will continue to occur. It is believed that advanced power generation systems and industrial applications are on the brink of commercial deployment. A status of METC CCT activities will be presented. Two projects have completed their operational phase, operations are underway at one project (two others are in the latter stages of construction/shakedown), four projects are in construction, six restructured. Also, present a snapshot of development activities that are an integral part of the advancement of these CCT initiatives will be presented.

  7. Planetary Protection Technology Definition Team: Tasks, Status, and Feedback

    Science.gov (United States)

    Meyer, M. A.; Rummel, J. D.

    2016-10-01

    A Planetary Protection and Technology Definition Team will assess challenges to meeting planetary protection requirements to instruments and will suggest technological solutions. Status and initial findings will be reported.

  8. Semi-annual report for the unconventional gas recovery program, period ending September 30, 1980

    Energy Technology Data Exchange (ETDEWEB)

    Manilla, R.D. (ed.)

    1980-11-01

    Progress is reported in research on methane recovery from coalbeds, eastern gas shales, western gas sands, and geopressured aquifers. In the methane from coalbeds project, data on information evaluation and management, resource and site assessment and characterization, model development, instrumentation, basic research, and production technology development are reported. In the methane from eastern gas shales project, data on resource characterization and inventory, extraction technology, and technology testing and verification are presented. In the western gas sands project, data on resource assessments, field tests and demonstrations and project management are reported. In the methane from geopressured aquifers project, data on resource assessment, supporting research, field tests and demonstrations, and technology transfer are reported.

  9. Power plant waste heat utilization in aquaculture. Semi-annual report, No. 2, 1 November 1977--1 June 1978

    Energy Technology Data Exchange (ETDEWEB)

    Guerra, C.R.; Godfriaux, B.L.

    1978-06-01

    The principal objective is to evaluate, at proof-of-concept scale, the potential of intensive aquaculture operations using power plant thermal discharges to enhance productivity. The field experiments involve the rearing of rainbow trout (Salmo gairdneri), channel catfish (Ictalurus punctatus) and American eel (Anguilla rostrata) for successive periods (semi-annual) in accordance with the temperature of the thermal effluents. Striped bass (Morone saxatilis) and the freshwater shrimp (Macrobrachium rosenbergii) are also being tested in smaller, laboratory size culture systems. The above mentioned species were selected because of their economic importance. They will be evaluated for food quality and marketability with the cooperation of potential commercial users. Aquaculture facilities were constructed at a steam electric generating plant for studies determining use for waste heat released into condenser cooling water. Growth rates, food conversion ratios, disease problems and mortality rates are being studied in the project. (Color illustrations reproduced in black and white) (Portions of this document are not fully legible)

  10. Semi-annual sampling of Fourmile Branch and its seeplines in the F and H Areas of SRS: July 1992

    Energy Technology Data Exchange (ETDEWEB)

    Dixon, K.L.; Rogers, V.A.

    1994-04-01

    In July 1992, water samples were collected from Fourmile Branch (FMB) and its seeplines in the vicinity of the F and H-Area seepage basins. The samples were collected from five seepline locations in F Area, five seepline locations in H Area, and three stream locations on FMB. The sampling event was the first in a series of three semi-annual sampling event was the first in a series of three semi-annual sampling events aimed at characterizing the shallow groundwater outcropping into FMB and its wetlands. In the past, this groundwater has been shown to contain contaminants migrating from the F- and H-Area seepage basins. The samples were analyzed for Appendix 9 metals, various radionuclides, selected volatile compounds, and selected inorganic constituents and parameters. Results from the July 1992 sampling event suggest that the seeplines in both F and H Areas and FMB continue to be influenced by contaminants migrating from the F- and H-Area seepage basins. However, when compared to 1989 measurements, the concentrations of most of the constituents have declined. Contaminant concentration measured in July 1992 were compared to primary drinking water standards (PDWS), secondary drinking water standards (SDWS), and maximum contaminant levels (MCL) enforceable in 1993. Results were also compared to 1989 measurements at corresponding sampling locations and to background samples collected as part of the July 1992 sampling event. Using two different statistical tests, concentrations of selected F- and H-Area seepline analytes were compared to background samples. These tests were designed to detect if concentrations of contaminants along the F- and H-Area seeplines were greater than background concentrations.

  11. Buried Waste Integrated Demonstration Technology Preparedness and Status Report Guidance

    Energy Technology Data Exchange (ETDEWEB)

    Blacker, P.B.; Bonnenberg, R.W.; Cannon, P.G.; Hyde, R.A.; Watson, L.R.

    1994-04-01

    A Technology Preparedness and Status Report is required for each Technical Task Plan funded by the Buried Waste Integrated Demonstration. This document provides guidance for the preparation of that report. Major sections of the report will include a subset of the need for the technology, objectives of the demonstration, technology description and readiness evaluation, demonstration requirements, and preparedness checklist and action plan.

  12. Task 9 -- Centrifugal membrane filtration. Semi-annual report, April 1--September 30, 1997

    Energy Technology Data Exchange (ETDEWEB)

    Stepan, D.J.; Grafsgaard, M.E.

    1997-12-31

    This project is designed to establish the utility of a novel centrifugal membrane filtration technology for the remediation of liquid mixed waste streams at US Department of Energy (DOE) facilities in support of the DOE Environmental Management (EM) program. The Energy and Environmental Research Center (EERC) has teamed with SpinTek Membrane Systems, Inc., a small business and owner of the novel centrifugal membrane filtration technology, to establish the applicability of the technology to DOE site remediation and the commercial viability of the technology for liquid mixed waste stream remediation. The technology is a uniquely configured process that makes use of ultrafiltration and centrifugal force to separate suspended and dissolved solids from liquid waste streams, producing a filtered water stream and a low-volume contaminated concentrate stream. This technology has the potential for effective and efficient waste volume minimization, the treatment of liquid tank wastes, the remediation of contaminated groundwater plumes, and the treatment of secondary liquid waste streams from other remediation processes, as well as the liquid waste stream generated during decontamination and decommissioning activities.

  13. Technology Status of Thermionic Fuel Elements for Space Nuclear Power

    Science.gov (United States)

    Holland, J. W.; Yang, L.

    1984-01-01

    Thermionic reactor power systems are discussed with respect to their suitability for space missions. The technology status of thermionic emitters and sheath insulator assemblies is described along with testing of the thermionic fuel elements.

  14. Highlights of the solar thermal conversion program. Semi-annual review, 30 April-2 May 1975

    Energy Technology Data Exchange (ETDEWEB)

    Finlayson, F.C.

    1975-07-01

    Overviews of the ERDA and Electric Power Research Institute program plans and the progress in the mission analysis study by the Aerospace Corporation are given. The total energy, distributed collector, surface technology, and central receiver studies are summarized briefly. Informal oral comments, recommendations, and conclusions of the Ad Hoc Review Committee relative to the information presented at the review are compiled. (LEW)

  15. Program to develop improved downhole drilling motors. Semi-annual report

    Energy Technology Data Exchange (ETDEWEB)

    Maurer, W.C.

    1976-11-01

    Research progress is reported in two main sections: downhole drilling motor design and design of downhole motor seal, bearing, and test lubrication systems. Information on downhole drilling motor design is presented under the following subsection headings: Turbodrill development; positive displacement motor development; theory of Turbodrills; theory of positive displacement motors; basic motor components; forces on thrust bearings; thrust bearing design; radial bearing design; rotary seal design; sealed lubrication system; lubricants; and project status. The appendix contains information on high temperature lubricants. Information on the design of downhole motor seal, bearing, and test lubrication systems is presented under the following subsection headings: seal, bearing, and lubrication test design criteria; basic test conditions; independent and dependent variable parameters; alternative concepts for seal test apparatus; design of the seal test system; and bearing test system description. A schedule for remaining tasks is included. (JGB)

  16. Geothermal development. Semi-annual report, October 1, 1980-March 31, 1981

    Energy Technology Data Exchange (ETDEWEB)

    1981-03-31

    Three areas are reported: geothermal administration, geothermal planning, and other geothermal activities. Administration covers the status of the Imperial Valley Environmental Project transfer, update of the Geothermal Resource Center, and findings of the geothermal field inspections. Planning addresses Board of Supervisor actions, Planning Commission actions, notice of exemptions, and the master Environmental Impact Report for Salton Sea. The other activity includes the County Direct Heat Development study; the solicitation for district heating and cooling proposals; the new Geothermal Class II-1 disposal site; the DOE Region IX meeting in Tucson; and USGA designating a new KGRA, the East Brawley KGRA, the Westmoreland KGRA, and revising the southern border of the Salton Sea KGRA. (MHR)

  17. Wireless power transmission - Applications and technology status

    Science.gov (United States)

    Schupp, Bradford W.; Brown, Alan M.

    The history of wireless power transmission systems is reviewed and current and future applications and technology are discussed. Design constraints for terrestrial systems, airborne platforms, and space systems are presented.

  18. Phosphoric Acid Fuel Cell Technology Status

    Science.gov (United States)

    Simons, S. N.; King, R. B.; Prokopius, P. R.

    1981-01-01

    A review of the current phosphoric acid fuel cell system technology development efforts is presented both for multimegawatt systems for electric utility applications and for multikilowatt systems for on-site integrated energy system applications. Improving fuel cell performance, reducing cost, and increasing durability are the technology drivers at this time. Electrodes, matrices, intercell cooling, bipolar/separator plates, electrolyte management, and fuel selection are discussed.

  19. Task 9 - centrifugal membrane filtration. Semi-annual report April 1--September 30, 1996

    Energy Technology Data Exchange (ETDEWEB)

    Stepan, D.J.; Moe, T.A.; Collings, M.E.

    1997-05-01

    This report assesses a centrifugal membrane filtration technology developed by SpinTek Membrane Systems, Inc. The technology uses supported microporous membranes rotating at high rpm, under pressure, to separate suspended and colloidal solids from liquid streams, yielding a solids-free permeate stream and a highly concentrated solids stream. The Tank Waste Focus Area was chosen for study. Membrane-screening tests were performed with the STC-X4 static test cell filtration unit, using five ceramic membranes with different pore size and composition. Based on permeate flux, a 0.25-{mu}m TiO{sub 2}/Al{sub 2}O{sub 3} membrane was selected for detailed performance evaluation using the centrifugal membrane filtration unit with a surrogate tank waste solution. The performance of the unit was evaluated with a statistical test design that determined the effect of temperature, pressure, membrane rotational speed, and solids loading on permeate flux. All four variables were found to be statistically significant, with the magnitude of the effect in the order of temperature, solids loading, rotor speed, and pressure. Temperature, rotor speed, and pressure had an increasing effect on flux with increasing value, while increases in solids loading showed a decrease in permeate flux. Significant interactions between rotor speed and solids loading and pressure and solids loading were also observed. The regression equation derived from test data had a correlation coefficient of 0.934, which represents a useful predictive capability for integrating the technology into DOE cleanup efforts. An extended test run performed on surrogate waste showed some deterioration in filtration performance, based on flux, apparently due to the buildup of solids near the inner portion of the membrane where relative membrane velocities were low. Continued testing of the system will focus on modifications to the shear pattern across the entire membrane surface to affect improved long-term performance.

  20. Gasification - Status and Technology; Foergasning - Status och teknik

    Energy Technology Data Exchange (ETDEWEB)

    Held, Joergen

    2011-07-15

    In this report gasification and gas cleaning techniques for biomass are treated. The main reason for gasifying biomass is to refine the fuel to make it suitable for efficient CHP production, as vehicle fuel or in industrial processes. The focus is on production of synthesis gas that can be used for production of vehicle fuel and for CHP production. Depending on application different types of gasifiers, gasification techniques and process parameters are of interest. Two gasification techniques have been identified as suitable for syngas generation, mainly due to the fact that they allow the production of a nitrogen free gas out of the gasifier; Indirect atmospheric gasification and Pressurized oxygen blown gasification For CHP production there are no restrictions on the gas composition in terms of nitrogen and here air-blown gasification is of interest as well. The main challenge when it comes to gas cleaning is related to sulphur and tars. There are different concepts and alternatives to handle sulphur and tars. Some of them is based on conventional techniques with well-proven components that are commercially available while others more advantageous solutions, still need further development. The report deals to a minor extent with the conversion of syngas to synthetic fuels. The ongoing research and development of gasification techniques is extensive, both on national and international level. Although many process concepts and components have been demonstrated, there is still no full-scale plant for the production of synthetic fuels based on biomass. Factors affecting the choice of technology are plant size, operating conditions, the possibility for process integration, access to feedstock, market aspects, incentives and economic instruments et cetera. Increased competition for biofuels will inevitably lead to higher raw material costs. This in turn means that the fuel chains with high efficiency, such as biomethane through gasification and methanation, are favored

  1. Task 3 -- Pyrolysis of plastic waste. Semi-annual report, April 1--September 30, 1997

    Energy Technology Data Exchange (ETDEWEB)

    Ness, R.O.; Aulich, T.R.

    1997-09-01

    The Energy and Environmental Research Center is developing a technology for the thermal decomposition of high-organic-content, radionuclide-contaminated mixed wastes and spent (radioactive) ion-exchange resins from the nuclear power industry that will enable the separation and concentration of radionuclides as dry particulate solids and the generation of nonradioactive condensable and noncondensable gas products. Successful application of the technology will enable a significant volume reduction of radioactive waste and the production of an inexpensively disposable nonradioactive organic product. The project objective is to develop and demonstrate the commercial viability of a continuous thermal decomposition process that can fulfill the following requirements: separate radionuclides from radioactive waste streams containing a variety of types and levels of polymers, chlorinated species, and other organics, including rubber, oils, resins, and cellulosic-based materials; concentrate radionuclides in a homogeneous, dry particulate product that can be recovered, handled, and disposed of efficiently and safely; separate and recover any chlorine present (as PVC, chlorinated solvents, or inorganic chlorine) in the contaminated mixed-waste stream; and yield a nonradioactive, low-chlorine-content, condensable organic product that can be economically disposed. Progress is described.

  2. Fuel Cell Technology Status Analysis Project: Partnership Opportunities

    Energy Technology Data Exchange (ETDEWEB)

    2017-03-13

    Fact sheet describing the National Renewable Energy Laboratory's (NREL's) Fuel Cell Technology Status Analysis Project. NREL is seeking fuel cell industry partners from the United States and abroad to participate in an objective and credible analysis of commercially available fuel cell products to benchmark the current state of the technology and support industry growth.

  3. Microfabricated DNA analysis system. Semi-annual report, August 1993--January 1994

    Energy Technology Data Exchange (ETDEWEB)

    Northrup, M.A.

    1994-01-01

    We are miniaturizing instrumentation for the polymerase chain reaction (PCR) -- a bioanalytical technique that amplifies target sections of DNA through thermal cycling. This report focuses on delineating reaction chamber, design parameters through computer modeling and infrared imaging. We have also continued micro-chamber-based PCR experiments and have successfully amplified three different targets from two different biological sources. Specifically, we have amplified DNA from {beta}-globin (a subunit of hemoglobin), and two different-sized targets from the Human Immunodeficiency Virus (HIV). These experiments were performed in newly-designed chambers. Reaction chambers are also being designed with detection in mind, specifically for the detection of fluorescent DNA labels. Finally, some new developments in PCR technology are described as they represent potential biological diagnostics to be evaluated in microfabricated DNA analysis systems.

  4. Advanced subsystems development. Second semi-annual progress report, April 1--October 1, 1978

    Energy Technology Data Exchange (ETDEWEB)

    1978-11-15

    The concept design for a small (less than 10 MWe) solar thermal electric generating plant was completed using projected 1985 technology. The systems requirements were defined and specified. The components, including an engineering prototype for one 15 kWe module of the generating plant, were conceptually designed. Significant features of the small solar thermal power plant were identified as the following: (1) 15-kWe Stirling-cycle engine/alternator with constant power output; (2) 10-meter point-focusing paraboloidal concentrator with cantilevered cellular glass reflecting panels; (3) primary heat pipe with 800/sup 0/C output solar cavity receiver; (4) secondary heat pipe with molten salt thermal energy storage unit; (5) electric energy transport system; and (6) advanced battery energy storage capability. The present emphasis for achieving cost reduction goals centers on improving conversion efficiency and reducing the cost of key components.

  5. Recycle of contaminated scrap metal, Volume 2. Semi-annual report, September 1993--January 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-07-01

    Catalytic Extraction Processing (CEP) has been demonstrated to be a robust, one-step process that is relatively insensitive to wide variations in waste composition and is applicable to a broad spectrum of DOE wastes. Catalytic Processing Unit (CPU) design models have been validated through experimentation to provide a high degree of confidence in our ability to design a bulk solids CPU for processing DOE wastes. Two commercial CEP facilities have been placed in commission and are currently processing mixed low level wastes. These facilities provide a compelling indication of the maturity, regulatory acceptance, and commercial viability of CEP. In concert with the DOE, Nolten Metal Technology designed a program which would challenge preconceptions of the limitations of waste processing technologies: demonstrate the recycling of ferrous and non-ferrous metals--to establish that radioactively contaminated scrap metal could be converted to high-grade, ferrous and non-ferrous alloys which can be reused by DOE or reintroduced into commerce; immobilize radionuclides--that CEP would concentrate the radionuclides in a durable vitreous phase, minimize secondary waste generation and stabilize and reduce waste volume; destroy hazardous organics--that CEP would convert hazardous organics to valuable industrial gases, which could be used as an energy source; recover volatile heavy metals--that CEP`s off-gas treatment system would capture volatile heavy metals, such as mercury and lead; and establish that CEP is economical for processing contaminated scrap metal in the DOE inventory. The execution of this program resulted in all objectives being met. Volume II contains: Task 1.4, optimization of the vitreous phase for stabilization of radioactive species; Task 1.5, experimental testing of Resource Conservation and Recovery Act (RCRA) wastes; and Task 1.6, conceptual design of a CEP facility.

  6. Recycle of contaminated scrap metal, Volume 1. Semi-annual report, September 1993--January 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-07-01

    Catalytic Extraction Processing (CEP) has been demonstrated to be a robust, one-step process that is relatively insensitive to wide variations in waste composition and is applicable to a broad spectrum of DOE wastes. Catalytic Processing Unit (CPU) design models have been validated through experimentation to provide a high degree of confidence in our ability to design a bulk solids CPU for processing DOE wastes. Two commercial CEP facilities have been placed in commission and are currently processing mixed low level wastes. These facilities provide a compelling indication of the maturity, regulatory acceptance, and commercial viability of CEP. In concert with the DOE, Nolten Metal Technology designed a program which would challenge preconceptions of the limitations of waste processing technologies: demonstrate the recycling of ferrous and non-ferrous metals--to establish that radioactively contaminated scrap metal could be converted to high-grade, ferrous and non-ferrous alloys which can be reused by DOE or reintroduced into commerce; immobilize radionuclides--that CEP would concentrate the radionuclides in a durable vitreous phase, minimize secondary waste generation and stabilize and reduce waste volume; destroy hazardous organics--that CEP would convert hazardous organics to valuable industrial gases, which could be used as an energy source; recover volatile heavy metals--that CEP`s off-gas treatment system would capture volatile heavy metals, such as mercury and lead; establish that CEP is economical for processing contaminated scrap metal in the DOE inventory. The execution of this program resulted in all objectives being met. Volume I covers: executive summary; task 1.1 design CEP system; Task 1.2 experimental test plan; Task 1.3 experimental testing.

  7. Nanofluid technology : current status and future research.

    Energy Technology Data Exchange (ETDEWEB)

    Choi, S. U.-S.

    1998-10-20

    Downscaling or miniaturization has been a recent major trend in modern science and technology. Engineers now fabricate microscale devices such as microchannel heat exchangers, and micropumps that are the size of dust specks. Further major advances would be obtained if the coolant flowing in the microchannels were to contain nanoscale particles to enhance heat transfer. Nanofluid technology will thus be an emerging and exciting technology of the 21st century. This paper gives a brief history of the Advanced Fluids Program at Argonne National Laboratory (ANL), discusses the concept of nanofluids, and provides an overview of the R and D program at ANL on the production, property characterization, and performance of nanofluids. It also describes examples of potential applications and benefits of nanofluids. Finally, future research on the fundamentals and applications of nanofluids is addressed.

  8. Imperial County geothermal development semi-annual report, October 1, 1980-March 31, 1981

    Energy Technology Data Exchange (ETDEWEB)

    1981-01-01

    The current geothermal progress in Imperial County is reported. Three areas are reported: Geothermal Administration, Geothermal Planning, and other Geothermal Activities. Geothermal Administration addresses the status of the Imperial Valley Environmental Project (IVEP) transfer, update of the Geothermal Resource Center, and findings of Geothermal field inspections. In addition, the cooperative efforts between industry and the County; Master EIR for the Salton Sea KGRA and the resurveying of the subsidence detection network are covered. Geothermal Planning addresses a Board of Supervisor action on the Union Oil Geothermal Production Permit for 16 wells in the Salton Sea KGRA and a permit for Southern California Edison 10 megawatts power plant in the Salton Sea KGRA. Planning Commission action covers: Amendment of Magma Power's 49 megawatts Geothermal Production Permit to 28 megawatt power plant and relocation of the plant and wells within the Salton Sea KGRA; Exploration permit to Occidental Geothermal for four exploratory wells in East Brawley; Geothermal Production Permit to Southern California Edison to operate a 10 megawatt power plant in the Salton Sea KGRA; and Geothermal production permit to Union Oil for 16 production-injection wells in the Salton Sea KGRA. Lastly, EIR exemptions to CEQA were granted to Chevron for 70 shallow temperature observation holes and Union for fifteen. Other Geothermal Activity addresses the County Direct Heat Development study; the solicitation for district heating and cooling proposals; the new Geothermal Class II-1 disposal site; the DOE Region IX meeting in Tucson; and USGA designating a new KGRA, the East Brawley KGRA, the Westmorland KGRA, and revising the southern border of the Salton Sea KGRA.

  9. Fiber Optic Communications Technology. A Status Report.

    Science.gov (United States)

    Hull, Joseph A.

    Fiber optic communications (communications over very pure glass transmission channels of diameter comparable to a human hair) is an emerging technology which promises most improvements in communications capacity at reasonable cost. The fiber transmission system offers many desirable characteristics representing improvements over conventional…

  10. Extravehicular Activity Technology Development Status and Forecast

    Science.gov (United States)

    Chullen, Cinda; Westheimer, David T.

    2011-01-01

    The goal of NASA s current EVA technology effort is to further develop technologies that will be used to demonstrate a robust EVA system that has application for a variety of future missions including microgravity and surface EVA. Overall the objectives will be to reduce system mass, reduce consumables and maintenance, increase EVA hardware robustness and life, increase crew member efficiency and autonomy, and enable rapid vehicle egress and ingress. Over the past several years, NASA realized a tremendous increase in EVA system development as part of the Exploration Technology Development Program and the Constellation Program. The evident demand for efficient and reliable EVA technologies, particularly regenerable technologies was apparent under these former programs and will continue to be needed as future mission opportunities arise. The technological need for EVA in space has been realized over the last several decades by the Gemini, Apollo, Skylab, Space Shuttle, and the International Space Station (ISS) programs. EVAs were critical to the success of these programs. Now with the ISS extension to 2028 in conjunction with a current forecasted need of at least eight EVAs per year, the EVA hardware life and limited availability of the Extravehicular Mobility Units (EMUs) will eventually become a critical issue. The current EMU has successfully served EVA demands by performing critical operations to assemble the ISS and provide repairs of satellites such as the Hubble Space Telescope. However, as the life of ISS and the vision for future mission opportunities are realized, a new EVA systems capability will be needed and the current architectures and technologies under development offer significant improvements over the current flight systems. In addition to ISS, potential mission applications include EVAs for missions to Near Earth Objects (NEO), Phobos, or future surface missions. Surface missions could include either exploration of the Moon or Mars. Providing an

  11. Current Status on Biochip and Detection Technology

    Energy Technology Data Exchange (ETDEWEB)

    Park, Sang Hyun; Gwon, Hui Jeong

    2007-06-15

    The recent biotechnology technique has been miniaturized and it features a fusion of electricity, electronics and mechanics in the existing biology. As an example, biochip is a collection of miniaturized test sites (microarrays) arranged on a solid substrate that permits many tests to be performed at the same time in order to achieve higher throughput and speed. Like a computer chip that can perform millions of mathematical operations in a second, the biochip can perform thousands of biological reactions, such as decoding genes, in a few seconds. The biochip is being used in toxicological, protein, and biochemical research and it can also be used to rapidly detect chemical agents used in biological warfare so that defensive measures can be taken. These biochip technologies incorporate elements of microfluidics, micromachining, synthetic chemistry, separation technologies, and detection technologies of biological molecules. Basically, biochips can be divided into two types: microarray and lab-on-a-chip system. Microarrays use planted probes to catch and identify target biological molecules while lab-on-a-chips actively process loaded samples. The biochips are becoming more diverse and customers are appearing all over the world. The products from the biochip market are being used to help accelerating the research processes and capabilities of bio-pharmaceutical drug discovery and basic academic bioresearch. To fully take advantages of the attributes of biochip technologies such as miniaturization, parallelism, automation and integration, there are some problems to overcome. The major problem is to reduce the cost. Currently the prices of biochip products are too expensive to replace traditional products and processes. As a method to solve the problem, a radioisotope can be used as a detecting sensor by appling on the biochip, as it were, radio-biochip that will further bring the cost down. The originality using the radioisotope on the biochip technology will be able

  12. Semi-annual technical report, September 30, 1999 - March 31, 2000

    Energy Technology Data Exchange (ETDEWEB)

    Schumacher, Dorin

    2000-04-01

    The Consortium for Plant Biotechnology Research, Inc. (CPBR) continues to operate according to objectives outlined in the proposal funded through the cooperative agreement. The italicized objectives below are addressed in this report, which covers the period September 30,1999 through March 31, 2000. (1) Update the research agenda using information obtained from member companies. (2) Identify and implement research projects that are deemed by industrial, scientific, and sponsoring agency evaluation to address significantly the problems and future of U.S. energy resources and that are relevant to the Department of Energy's mission. Specifically: (1) Announce research grants competition through a Request for Preproposals. (2) Conduct a dual-stage review process: Stage one--industrial and DOE review of preproposals; and Stage two--peer review, scientific consultants' review, DOE review of full proposals and Project Recommendation Committee evaluation and recommendation for funding. (3) Board of Directors approval of recommended awards. (4) Conduct ongoing project management. (5) Obtain semiannual, annual and final reports for evaluation of research goals and technology transfer. (6) Present reports to DOE.

  13. Making of Steel Strapping and Strip. Semi-Annual Report for Period Ending April 30, 2000

    Energy Technology Data Exchange (ETDEWEB)

    Reilly, Robert D.

    2000-07-22

    The direction for the heat treating method has been established with input from the work to date on the Northwestern contract for the project entitled ''Effects of Steel Composition and Quench Rate on Microstructure and Mechanical Properties of Strapping''. The conclusion has been accepted by ourselves and Northwestern that our direction to heat treat to a Martensitic microstructure will give us optimum physical properties in the final product. The attached comparison from the American Society of Metals ''Handbook of Quenchants and Quenching Technology'' clearly shows the superiority of this end objective (Quenched and Tempered) as compared to ''Normalized and Tempered'' structures. Present industry practice produces a ''Normalized'' or a close compromise to this structure which is obtained by Quenching in Lead. It is not possible to prevent some lead adherence to products produced in this manner and the industry has been searching for new methods to avoid this environmental hazard which is present not only in the production process but in the product as well It is appropriate to review our production methodology at this time in order to reconfirm the steps taken which have been previously designated by those knowledgeable in the field to be proven in former steel conversion practice.

  14. Characterization and environmental studies of Pompano Beach anaerobic digestion facility. Semi-annual report

    Energy Technology Data Exchange (ETDEWEB)

    Sengupta, S; Farooq, S; Gerrish, H P; Wong, K F; Daly, Jr, E L; Chriswell, C

    1980-02-01

    Anaerobic digestion of municipal waste has been demonstrated to be feasible in bench scale experiments by Pfeffer (1974). Approximately, 50% reduction in mass and production of 6000 ft/sup 3/ of gas/ton have been estimated. The gas composition is estimated to be 50% methane and 50% carbon monoxide. The technical and economic feasibility of anaerobic digestion with an ultimate objective of commercialization are discussed. A plant has been built at Pompano Beach, Florida on an existing shredding and landfill operation site. The plant design capacity is 100 tons/day. Two digesters have been constructed to be used in parallel. The process consists of primary shredding, metal separation, secondary shredding, air classification and digestion of light fraction. Sewage sludge was used to seed the initial mixture in the digester. The output slurry is vacuum filtered and the filter cake disposed on an existing landfill. The filtrate is recycled. Excess filtrate is sprayed on the landfill. At present the output gas is being flared. A flow chart for the plant is presented. It is imperative that environmental investigations be conducted on new energy technology prior to commercialization. A project was initiated to characterize all input and output streams and to assess the potential for ground water contamination by landfill disposal of effluents. Detailed chemical, biological and physical characterization efforts supported by leaching and modelling studies are being conducted to achieve the stated objectives. Some mutagenic studies were also conducted. The environmental investigations were started in August 1978. Sengupta et al (1979a) reported the first year's efforts.

  15. Status of solar sail technology within NASA

    Science.gov (United States)

    Johnson, Les; Young, Roy; Montgomery, Edward; Alhorn, Dean

    2011-12-01

    In the early 2000s, NASA made substantial progress in the development of solar sail propulsion systems for use in robotic science and exploration of the solar system. Two different 20-m solar sail systems were produced. NASA has successfully completed functional vacuum testing in their Glenn Research Center's Space Power Facility at Plum Brook Station, Ohio. The sails were designed and developed by Alliant Techsystems Space Systems and L'Garde, respectively. The sail systems consist of a central structure with four deployable booms that support each sail. These sail designs are robust enough for deployment in a one-atmosphere, one-gravity environment and are scalable to much larger solar sails - perhaps as large as 150 m on a side. Computation modeling and analytical simulations were performed in order to assess the scalability of the technology to the larger sizes that are required to implement the first generation of missions using solar sails. Furthermore, life and space environmental effects testing of sail and component materials was also conducted.NASA terminated funding for solar sails and other advanced space propulsion technologies shortly after these ground demonstrations were completed. In order to capitalize on the $30 M investment made in solar sail technology to that point, NASA Marshall Space Flight Center funded the NanoSail-D, a subscale solar sail system designed for possible small spacecraft applications. The NanoSail-D mission flew on board a Falcon-1 rocket, launched August 2, 2008. As a result of the failure of that rocket, the NanoSail-D was never successfully given the opportunity to achieve orbit. The NanoSail-D flight spare was flown in the Fall of 2010. This review paper summarizes NASA's investment in solar sail technology to date and discusses future opportunities.

  16. Solid Oxide Fuel Cells: Technology Status

    Energy Technology Data Exchange (ETDEWEB)

    Singh, Prabhakar; Minh, Nguyen Q.

    2004-08-01

    In its most common configuration, solid oxide fuel cell (SOFC) uses an oxygen ion conducting ceramic electrolyte membrane, perovskite cathode and nickel cermet anode electrode. Cells operate in the 600-1000 C temperature range and utilize metallic or ceramic current collectors for cell-to-cell interconnection. Recent development in engineered electrode architectures, component materials chemistry, cell and stack designs and fabrication processes have led to significant improvement in the electrical performance and performance stability as well as reduction in the operating temperature of such cells. Large kW-size power generation systems have been designed and field demonstrated. This paper reviews the status of SOFC power generation systems with emphasis on cell and stack component materials, electrode reactions, materials reactions and corrosion processes

  17. Diamond detector technology: status and perspectives

    CERN Document Server

    Kagan, Harris; Artuso, M; Bachmair, F; Bäni, L; Bartosik, M; Beacham, J; Beck, H P; Bellini,, V; Belyaev, V; Bentele, B; Berdermann, E; Bergonzo, P; Bes, A; Brom, J-M; Bruzzi, M; Cerv, M; Chiodini, G; Chren, D; Cindro, V; Claus, G; Collot, J; Cumalat, J; Dabrowski, A; D'Alessandro, R; De Boer, W; Dehning, B; Dorfer, C; Dunser, M; Eremin, V; Eusebi, R; Forcolin, G; Forneris, J; Frais-Kölbl, H; Gan, K K; Gastal, M; Giroletti, C; Goffe, M; Goldstein, J; Golubev, A; Gorišek, A; Grigoriev, E; Grosse-Knetter, J; Grummer, A; Gui, B; Guthoff, M; Haughton, I; Hiti, B; Hits, D; Hoeferkamp, M; Hofmann, T; Hosslet, J; Hostachy, J-Y; Hügging, F; Hutton, C; Jansen, H; Janssen, J; Kanxheri, K; Kasieczka, G; Kass, R; Kassel, F; Kis, M; Kramberger, G; Kuleshov, S; Lacoste, A; Lagomarsino, S; Lo Giudice, A; Lukosi, E; Maazouzi, C; Mandic, I; Mathieu, C; Mcfadden, N; Menichelli, M; Mikuž, M; Morozzi, A; Moss, J; Mountain, R; Murphy, S; Muškinja, M; Oh, A; Oliviero, P; Passeri, D; Pernegger, H; Perrino, R; Picollo, F; Pomorski, M; Potenza, R; Quadt, A; Re, A; Reichmann, M; Riley, G; Roe, S; Sanz, D; Scaringella, M; Schaefer, D; Schmidt, C J; Schnetzer, S; Schreiner, T; Sciortino, S; Scorzoni, A; Seidel, S; Servoli, L; Sopko, B; Sopko, V; Spagnolo, S; Spanier, S; Stenson, K; Stone, R; Sutera, C; Taylor, Aaron; Traeger, M; Tromson, D; Trischuk, W; Tuve, C; Uplegger, L; Velthuis, J; Venturi, N; Vittone, E; Wagner, Stephen; Wallny, R; Wang, J C; Weingarten, J; Weiss, C; Wengler, T; Wermes, N; Yamouni, M; Zavrtanik, M

    2017-01-01

    The status of material development of poly-crystalline chemical vapor deposition (CVD) diamond is presented. We also present beam test results on the independence of signal size on incident par-ticle rate in charged particle detectors based on un-irradiated and irradiated poly-crystalline CVD diamond over a range of particle fluxes from 2 kHz/cm2 to 10 MHz/cm2. The pulse height of the sensors was measured with readout electronics with a peaking time of 6 ns. In addition the first beam test results from 3D detectors made with poly-crystalline CVD diamond are presented. Finally the first analysis of LHC data from the ATLAS Diamond Beam Monitor (DBM) which is based on pixelated poly-crystalline CVD diamond sensors bump-bonded to pixel readout elec-tronics is shown.

  18. Sensing technology current status and future trends

    CERN Document Server

    Mukhopadhyay, Subhas; Jayasundera, Krishanthi; Bhattacharyya, Nabarun

    2014-01-01

    This book is written for academic and industry professionals working in the field of sensing, instrumentation and related fields, and is positioned to give a snapshot of the current state of the art in sensing technology, particularly from the applied perspective.  The book is intended to give a broad overview of the latest developments, in addition to discussing the process through which researchers go through in order to develop sensors, or related systems, which will become more widespread in the future.  

  19. Current Status of VHTR Technology Development

    Energy Technology Data Exchange (ETDEWEB)

    David Petti; Hans Gougar; Richard Wright; William Windes; Steve Herring; Richard Schultz; Paul Humrickhouse

    2010-10-01

    Abstract – High Temperature Gas-cooled Reactors (HTGRs) featuring particle fuel reached the stage of commercial deployment in the mid-1980s with the Fort St.Vrain and Thorium HochTemperatur Reaktor feeding electricity to the grids in the United States and West Germany, respectively. The technology was then adopted by Japan and China with the operation of the High Temperature Test Reactor in Oarai, Japan and the High Temperature Reactor (HTR-10) in China. Increasing the outlet temperature of the HTGR to even higher temperatures above 900°C will improve the thermodynamic efficiency of the system and enable application of a new class of gas reactor, the very high temperature reactor, to provide process heat, electricity, and hydrogen to chemical industries with the attendant benefits of improved energy security and reduced CO2 emissions. However, the increase in coolant outlet temperature presents a number of technical challenges associated with fuel, materials, power conversion, and analysis methods for the reactor and hydrogen production. The U.S. Department of Energy is sponsoring a broad program of research and development with a goal of addressing the technical challenges over a broad range of outlet temperatures as part of the Next Generation Nuclear Plant Project. This paper describes the research and development activities that are currently underway to realize the technologies needed for an HTGR that features outlet temperatures of 750 to 950°C.

  20. Status of SOFCo SOFC technology development

    Energy Technology Data Exchange (ETDEWEB)

    Privette, R.; Perna, M.A.; Kneidel, K. [SOFCo, Alliance, OH (United States)] [and others

    1996-12-31

    SOFCo, a Babcock & Wilcox/Ceramatec Research & Development Limited Partnership, is a collaborative research and development venture to develop technologies related to planar, solid-oxide fuel cells (SOFCs). SOFCo has successfully demonstrated a kW-class, solid-oxide fuel cell module operating on pipeline natural gas. The SOFC system design integrates the air preheater and the fuel processor with the fuel cell stacks into a compact test unit; this is the platform for multi-kW modules. The cells, made of tape-cast zirconia electrolyte and conventional electrode materials, exhibit excel lent stability in single-cell tests approaching 40,000 hours of operation. Stack tests using 10-cm and 15-cm cells with ceramic interconnects also show good performance and stability in tests for many thousands of hours.

  1. Cellulosic ethanol. Potential, technology and development status

    Energy Technology Data Exchange (ETDEWEB)

    Rarbach, M. [Sued-Chemie AG, Muenchen (Germany)

    2012-07-01

    In times of rising oil prices and a growing energy demand, sustainable alternative energy sources are needed. Cellulosic ethanol is a sustainable biofuel, made from lignocellulosic feedstock such as agricultural residues (corn stover, cereal straw, bagasse) or dedicated energy crops. Its production is almost carbon neutral, doesn't compete with food or feed production and induces no land use changes. It constitutes a new energy source using an already existing renewable feedstock without needing any further production capacity and can thus play a major role on the way to more sustainability in transport and the chemical industry and reducing the dependence on the import of fossil resources. The potential for cellulosic ethanol is huge: In the US, the annual production of agricultural residues (cereal straw and corn stover) reached almost 384 million tons in 2009 and Brazil alone produced more than 670 million tons of sugar cane in 2009 yielding more than 100 million tons of bagasse (dry basis). And alone in the European Union, almost 300 million tons of crop straw are produced annually. The last years have seen success in the development and deployment in the field of cellulosic ethanol production. The main challenge thereby remains to demonstrate that the technology is economically feasible for the up-scaling to industrial scale. Clariant has developed the sunliquid {sup registered} process, a proprietary cellulosic ethanol technology that reaches highest greenhouse gas (GHG) emission savings while cutting production costs to a minimum. The sunliquid {sup registered} process for cellulosic ethanol matches the ambitious targets for economically and ecologically sustainable production and greenhouse gas reduction. It was developed using an integrated design concept. Highly optimized, feedstock and process specific biocatalysts and microorganisms ensure a highly efficient process with improved yields and feedstock-driven production costs. Integrated, on

  2. Environmental management technology demonstration and commercialization. Semi-annual progress report, April 1, 1995--October 31, 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-11-01

    Several field-portable (e.g., gas chromatrography (GC), gas chromatography-mass spectrometry (GC-MS)) instruments are available for the measurement of organic pollutants. However, solid samples such as soils, sludges, and sediments must first be extracted before analysis can be performed. Conventional extraction methods based on liquid solvent (e.g., Soxhlet extraction) are not practical in the field because of the large volumes fo solvents required as well as clumsy apparatus and glassware. However, supercritical fluid extraction (SFE) has been demonstrated in several studies by the Energy & Environmental Research Center (EERS) to extract a broad range of organic pollutants from soils and sediments successfully. Of the approximately 100 major organic pollutants identified as problems for the US Department of Energy (DOE) sites, our SFE laboratory has demonstrated efficient SFE recoveries for about half, and published literature has addressed an additional 40%. SFE in the off-line mode (i.e., collection of extracted organics in a small voluem of liquid solvent) has also been demonstrated to be easily performed in the field with only generator electrical power for support. Recent advances in flow restrictor design have virtually eliminated the mechanical problems previously associated with the performance of SFE in the field.

  3. Client-Server Connection Status Monitoring Using Ajax Push Technology

    Science.gov (United States)

    Lamongie, Julien R.

    2008-01-01

    This paper describes how simple client-server connection status monitoring can be implemented using Ajax (Asynchronous JavaScript and XML), JSF (Java Server Faces) and ICEfaces technologies. This functionality is required for NASA LCS (Launch Control System) displays used in the firing room for the Constellation project. Two separate implementations based on two distinct approaches are detailed and analyzed.

  4. Status note on solar cell technology; Statusnotat om solcelleteknologi

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    This status note briefly describes development and perspectives for solar cell technology internationally and nationally. The note will form part of the background for a coming proposal for a national solar cell strategy. The strategy will be prepared by the Danish Energy Authority in collaboration with the Ministry of Science, Technology and Innovation, Elkraft System, Eltra, representatives from the industry and others. The proposal is expected to give an overall picture of Danish R and D niches and opportunities within solar cell technology. (BA)

  5. Integrated Magnetic MEMS Relays: Status of the Technology

    Directory of Open Access Journals (Sweden)

    Giuseppe Schiavone

    2014-08-01

    Full Text Available The development and application of magnetic technologies employing microfabricated magnetic structures for the production of switching components has generated enormous interest in the scientific and industrial communities over the last decade. Magnetic actuation offers many benefits when compared to other schemes for microelectromechanical systems (MEMS, including the generation of forces that have higher magnitude and longer range. Magnetic actuation can be achieved using different excitation sources, which create challenges related to the integration with other technologies, such as CMOS (Complementary Metal Oxide Semiconductor, and the requirement to reduce power consumption. Novel designs and technologies are therefore sought to enable the use of magnetic switching architectures in integrated MEMS devices, without incurring excessive energy consumption. This article reviews the status of magnetic MEMS technology and presents devices recently developed by various research groups, with key focuses on integrability and effective power management, in addition to the ability to integrate the technology with other microelectronic fabrication processes.

  6. Application and development status of coal gasification technology in China

    Institute of Scientific and Technical Information of China (English)

    BU Xue-peng; XU Zhen-gang

    2004-01-01

    Introduced the application and development status of coal gasification technology in China. The most widely used coal gasification technology in China is the atmospheric fixed-bed gasifier, its total number is about 9 000. About 30 pressurized fixed-bed gasifiers are in operation, and more than 10 atmospheric fluidized-bed gasifiers were used. There are 13 Texaco entrained-flow bed gasifiers are under operation,10 Texaco and 11 Shell gasifiers that are being installed or imported. About 10 underground gasifiers are under running now. The present R&D of coal gasification technologies are to improve the operation and controlling level of fixed-bed gasification technology, and developing or demonstration of fluidized-bed and entrained-flow bed gasifiers.

  7. Status of molten carbonate fuel cell technology development

    Science.gov (United States)

    Parsons, E. L., Jr.; Williams, M. C.; George, T. J.

    The MCFC technology has been identified by the DOE as a promising product for commercialization. Development of the MCFC technology supports the National Energy Strategy. Review of the status of the MCFC technology indicates that the MCFC technology developers are making rapid and significant progress. Manufacturing facility development and extensive testing is occurring. Improvements in performance (power density), lower costs, improved packaging, and scale up to full height are planned. MCFC developers need to continue to be responsive to end-users in potential markets. It will be market demands for the correct product definition which will ultimately determine the character of MCFC power plants. There is a need for continued MCFC product improvement and multiple product development tests.

  8. Evaluation of kidney allograft status using novel ultrasonic technologies

    Directory of Open Access Journals (Sweden)

    Cheng Yang

    2015-07-01

    Full Text Available Early diagnosis of kidney allograft injury contributes to proper decisions regarding treatment strategy and promotes the long-term survival of both the recipients and the allografts. Although biopsy remains the gold standard, non-invasive methods of kidney allograft evaluation are required for clinical practice. Recently, novel ultrasonic technologies have been applied in the evaluation and diagnosis of kidney allograft status, including tissue elasticity quantification using acoustic radiation force impulse (ARFI and contrast-enhanced ultrasonography (CEUS. In this review, we discuss current opinions on the application of ARFI and CEUS for evaluating kidney allograft function and their possible influencing factors, advantages and limitations. We also compare these two technologies with other non-invasive diagnostic methods, including nuclear medicine and radiology. While the role of novel non-invasive ultrasonic technologies in the assessment of kidney allografts requires further investigation, the use of such technologies remains highly promising.

  9. Decontamination and decommissioning technology tree and the current status of the technologies

    Energy Technology Data Exchange (ETDEWEB)

    Oh, Won Zin; Won, H.J.; Kim, G.N.; Lee, K.W.; Chol, W.K.; Jung, C.H.; Kim, C.J.; Kim, S.H.; Kwon, S.O.; Chung, C.M

    2001-03-01

    A technology tree diagram was developed on the basis of the necessary technologies applicable to the decontamination and decommissioning of nuclear facilities. The technology tree diagram is consist of 6 main areas such as characterization, decontamination, decommissioning and remote technology, radwaste management, site restoration, and decommissioning plan and engineering. Characterization is divided into 4 regions such as sampling and data collection, general characterization, chemical analysis and radiological analysis. Decontamination is also divided into 4 regions such as chemical decontamination, mechanical decontamination, the other decontamination technologies and new decontamination technologies. Decommissioning and remote technology area is divided into 4 regions such as cutting techniques, decommissioning technologies, new developing technologies and remote technologies. Radwaste management area is divided into 5 regions such as solid waste treatment, sludge treatment, liquid waste treatment, gas waste treatment and thermal treatment. Site restoration area is divided into 3 regions such as the evaluation of site contamination, soil decontamination and ground water decontamination. Finally, permission, decommissioning process, cost evaluation, quality assurance and the estimation of radionuclide inventory were mentioned in the decommissioning plan and engineering area. The estimated items for each technology are applicable domestic D and D facilities, D and D problem area and contamination/requirement, classification of D and D technology, similar technology, principle and overview of technology, status, science technology needs, implementation needs, reference and contact point.

  10. Research status and application prospects of digital technology in orthopaedics.

    Science.gov (United States)

    Chen, Yan-xi; Zhang, Kun; Hao, Yi-ni; Hu, Yong-cheng

    2012-08-01

    In the last 10 years, basic and clinical research in orthopaedics has developed rapidly. Understanding of orthopaedic disorders involves not only routine diagnosis, but also the pursuit of highly efficient and accurate three-dimensional imaging of the intra- and extra-medullary distribution, form and structure of orthopaedic disorders, thus allowing scientific evaluation of the indications for surgery, drawing up of the best surgical plan, minimization of operative trauma and the earliest possible restoration of limb function. Meanwhile, the most important type of basic research, which was previously biomechanical research, has gradually become computational biomechanics based on in vitro cadaver experiments. This review aims to summarize the research status and application prospects of digital technology in orthopaedics, including virtual reality technology, reverse engineering and rapid prototyping techniques, computational biomechanics, computer navigation technology and management of digitization of medical records. © 2012 Tianjin Hospital and Wiley Publishing Asia Pty Ltd.

  11. Present status of refurbishment and irradiation technologies in JMTR

    Science.gov (United States)

    Inaba, Yoshitomo; Ishihara, Masahiro; Niimi, Motoji; Kawamura, Hiroshi

    2011-10-01

    The Japan Materials Testing Reactor (JMTR) of the Japan Atomic Energy Agency is a testing reactor for various neutron irradiation tests on nuclear fuels and materials, as well as for radioisotope production. The operation of JMTR stopped temporarily in August 2006 for refurbishment and improvement. The renewed JMTR will resume operation in Japanese fiscal year 2011. The renewal of aged reactor components, the preparation of new irradiation facilities, and the development of irradiation technologies have been carried out for the resumption of the new JMTR. The new JMTR with the new irradiation facilities and the irradiation technologies will be utilized for the research and development of fission and fusion reactor fuels and materials. This paper describes the present status of the refurbishment and the irradiation technologies focused on instrumentation such as the multi-paired thermocouple which is applicable to irradiation temperature control and a ceramic oxygen sensor in JMTR.

  12. Status of the DOE Battery and Electrochemical Technology Program V

    Energy Technology Data Exchange (ETDEWEB)

    Roberts, R.

    1985-06-01

    The program consists of two activities, Technology Base Research (TBR) managed by the Lawrence Berkeley Laboratory (LBL) and Exploratory Technology Development and Testing (EDT) managed by the Sandia National Laboratories (SNL). The status of the Battery Energy Storage Test (BEST) Facility is presented, including the status of the batteries to be tested. ECS program contributions to the advancement of the lead-acid battery and specific examples of technology transfer from this program are given. The advances during the period December 1982 to June 1984 in the characterization and performance of the lead-acid, iron/nickel-oxide, iron/air, aluminum/air, zinc/bromide, zinc/ferricyanide, and sodium/sulfur batteries and in fuel cells for transport are summarized. Novel techniques and the application of established techniques to the study of electrode processes, especially the electrode/electrolyte interface, are described. Research with the potential of leading to improved ceramic electrolytes and positive electrode container and current-collectors for the sodium/sulfur battery is presented. Advances in the electrocatalysis of the oxygen (air) electrode and the relationship of these advances to the iron/air and aluminum/air batteries and to the fuel cell are noted. The quest for new battery couples and battery materials is reviewed. New developments in the modeling of electrochemical cell and electrode performance with the approaches to test these models are reported.

  13. Status of the DOE Battery and Electrochemical Technology Program 5

    Science.gov (United States)

    Roberts, R.

    1985-06-01

    The program consists of two activities, Technology Base Research (TBR) managed by the Lawrence Berkeley Laboratory (LBL) and Exploratory Technology Development and Testing (EDT) managed by the Sandia National Laboratories (SNL). The status of the Battery Energy Storage Test (BEST) Facility is presented, including the status of the batteries to be tested. ECS program contributions to the advancement of the lead-acid battery and specific examples of technology transfer from this program are given. The advances during the period December 1982 to June 1984 in the characterization and performance of the lead-acid, iron/nickel-oxide, iron/air, aluminum/air, zinc/bromide, zinc/ferricyanide, and sodium/sulfur batteries and in fuel cells for transport are summarized. Novel techniques and the application of established techniques to the study of electrode processes, especially the electrode/electrolyte interface, are described. Research with the potential of leading to improved ceramic electrolytes and positive electrode container and current-collectors for the sodium/sulfur battery is presented. Advances in the electrocatalysis of the oxygen (air) electrode and the relationship of these advances to the iron/air and aluminum/air batteries and to the fuel cell are noted. The quest for new battery couples and battery materials is reviewed. New developments in the modeling of electrochemical cell and electrode performance with the approaches to test these models are reported.

  14. Status of the DOE Battery and Electrochemical Technology Program V

    Energy Technology Data Exchange (ETDEWEB)

    Roberts, R.

    1985-06-01

    The program consists of two activities, Technology Base Research (TBR) managed by the Lawrence Berkeley Laboratory (LBL) and Exploratory Technology Development and Testing (EDT) managed by the Sandia National Laboratories (SNL). The status of the Battery Energy Storage Test (BEST) Facility is presented, including the status of the batteries to be tested. ECS program contributions to the advancement of the lead-acid battery and specific examples of technology transfer from this program are given. The advances during the period December 1982 to June 1984 in the characterization and performance of the lead-acid, iron/nickel-oxide, iron/air, aluminum/air, zinc/bromide, zinc/ferricyanide, and sodium/sulfur batteries and in fuel cells for transport are summarized. Novel techniques and the application of established techniques to the study of electrode processes, especially the electrode/electrolyte interface, are described. Research with the potential of leading to improved ceramic electrolytes and positive electrode container and current-collectors for the sodium/sulfur battery is presented. Advances in the electrocatalysis of the oxygen (air) electrode and the relationship of these advances to the iron/air and aluminum/air batteries and to the fuel cell are noted. The quest for new battery couples and battery materials is reviewed. New developments in the modeling of electrochemical cell and electrode performance with the approaches to test these models are reported.

  15. Effect of semi-annual applications of a chlorhexidine/fluoride varnish mixture on approximal caries incidence in schoolchildren. A three-year radiographic study.

    Science.gov (United States)

    Petersson, L G; Magnusson, K; Andersson, H; Deierborg, G; Twetman, S

    1998-04-01

    Development and progression of approximal caries is still difficult to prevent and control even in societies with declining caries prevalence. In this study, a test group of 115 12-yr old children were treated semi-annually with a mixture (1:1) of a varnish containing 0.1% F (Fluor Protector) and 1.0% chlorhexidine (Cervitec). A reference group of 104 children received fluoride varnish treatment (Fluor Protector) semi-annually. Approximal caries was recorded from bitewing radiographs at baseline and after 3 yr. At baseline, total decayed and filled surfaces (DFS) including enamel caries were 1.79+/-2.36 in the reference group and 2.0+/-2.77 in the test group. After 3 yr, the mean approximal caries incidence including enamel caries was 3.01+/-3.74 and 3.78+/-4.32, respectively. The differences at baseline as well as after 3 yr were not statistically significant. The results showed that both groups had a comparatively low incidence of approximal caries during the experimental period, and suggest that a mixture of fluoride and antibacterial varnish had no additional preventive effect on approximal caries incidence compared with fluoride varnish treatments alone.

  16. Status of radiation detector and neutron monitor technology

    CERN Document Server

    Kim, Y K; Ha, J H; Han, S H; Hong, S B; Hwang, I K; Lee, W G; Moon, B S; Park, S H; Song, M H

    2002-01-01

    In this report, we describe the current states of the radiation detection technology, detectors for industrial application, and neutron monitors. We also survey the new technologies being applied to this field. The method to detect radiation is the measurement of the observable secondary effect from the interaction between incident radiation and detector material, such as ionization, excitation, fluorescence, and chemical reaction. The radiation detectors can be categorized into gas detectors, scintillation detectors, and semiconductor detectors according to major effects and main applications. This report contains the current status and operational principles of these detectors. The application fields of radiation detectors are industrial measurement system, in-core neutron monitor, medical radiation diagnostic device, nondestructive inspection device, environmental radiation monitoring, cosmic-ray measurement, security system, fundamental science experiment, and radiation measurement standardization. The st...

  17. Status of space science and technology - An Australian perspective

    Science.gov (United States)

    Carver, J. H.

    The ``Tyranny of Distance'' has had a profound influence on Australian history and reaction to it has been an important factor in determining national scientific and technological goals. Because of its size and geographical remoteness, Australia is one of the countries to have gained substantially from the applications of space technology particularly in the fields of communications, meteorology and remote sensing. Australia is the fifth largest investor in INTELSAT which carries a major fraction of the nation's overseas telecommunications. A domestic satellite system, AUSSAT, is being acquired to improve telecommunications within the country. Australia is heavily dependent on satellite data for routine meteorological forecasting. Data from the Australian Landsat Station are in strong demand, particularly for mineral exploration. In the field of space science, Australia is collaborating with Canada and the United States in feasibility studies for STARLAB, a free-flying UV-optical one metre telescope proposed for launch by the US Space Shuttle beginning in 1989. These scientific and technological programs in which Australia is participating are all dependent upon the space programs of other nations and in describing the status of space science and technology from an Australian perspective some comments will be made on particular aspects of the space programs of the United States and Japan.

  18. Status of Propulsion Technology Development Under the NASA In-Space Propulsion Technology Program

    Science.gov (United States)

    Anderson, David; Kamhawi, Hani; Patterson, Mike; Pencil, Eric; Pinero, Luis; Falck, Robert; Dankanich, John

    2014-01-01

    Since 2001, the In-Space Propulsion Technology (ISPT) program has been developing and delivering in-space propulsion technologies for NASA's Science Mission Directorate (SMD). These in-space propulsion technologies are applicable, and potentially enabling for future NASA Discovery, New Frontiers, Flagship and sample return missions currently under consideration. The ISPT program is currently developing technology in three areas that include Propulsion System Technologies, Entry Vehicle Technologies, and Systems/Mission Analysis. ISPT's propulsion technologies include: 1) the 0.6-7 kW NASA's Evolutionary Xenon Thruster (NEXT) gridded ion propulsion system; 2) a 0.3-3.9kW Halleffect electric propulsion (HEP) system for low cost and sample return missions; 3) the Xenon Flow Control Module (XFCM); 4) ultra-lightweight propellant tank technologies (ULTT); and 5) propulsion technologies for a Mars Ascent Vehicle (MAV). The NEXT Long Duration Test (LDT) recently exceeded 50,000 hours of operation and 900 kg throughput, corresponding to 34.8 MN-s of total impulse delivered. The HEP system is composed of the High Voltage Hall Accelerator (HIVHAC) thruster, a power processing unit (PPU), and the XFCM. NEXT and the HIVHAC are throttle-able electric propulsion systems for planetary science missions. The XFCM and ULTT are two component technologies which being developed with nearer-term flight infusion in mind. Several of the ISPT technologies are related to sample return missions needs: MAV propulsion and electric propulsion. And finally, one focus of the Systems/Mission Analysis area is developing tools that aid the application or operation of these technologies on wide variety of mission concepts. This paper provides a brief overview of the ISPT program, describing the development status and technology infusion readiness.

  19. Robotic technology in surgery: current status in 2008.

    Science.gov (United States)

    Murphy, Declan G; Hall, Rohan; Tong, Raymond; Goel, Rajiv; Costello, Anthony J

    2008-12-01

    There is increasing patient and surgeon interest in robotic-assisted surgery, particularly with the proliferation of da Vinci surgical systems (Intuitive Surgical, Sunnyvale, CA, USA) throughout the world. There is much debate over the usefulness and cost-effectiveness of these systems. The currently available robotic surgical technology is described. Published data relating to the da Vinci system are reviewed and the current status of surgical robotics within Australia and New Zealand is assessed. The first da Vinci system in Australia and New Zealand was installed in 2003. Four systems had been installed by 2006 and seven systems are currently in use. Most of these are based in private hospitals. Technical advantages of this system include 3-D vision, enhanced dexterity and improved ergonomics when compared with standard laparoscopic surgery. Most procedures currently carried out are urological, with cardiac, gynaecological and general surgeons also using this system. The number of patients undergoing robotic-assisted surgery in Australia and New Zealand has increased fivefold in the past 4 years. The most common procedure carried out is robotic-assisted laparoscopic radical prostatectomy. Published data suggest that robotic-assisted surgery is feasible and safe although the installation and recurring costs remain high. There is increasing acceptance of robotic-assisted surgery, especially for urological procedures. The da Vinci surgical system is becoming more widely available in Australia and New Zealand. Other surgical specialties will probably use this technology. Significant costs are associated with robotic technology and it is not yet widely available to public patients.

  20. Present Status and Internationalization Prospect of China Float Glass Technology

    Directory of Open Access Journals (Sweden)

    Peng, Shou

    2008-04-01

    Full Text Available This paper gives a brief account on the development course of China float glass technology accompanied by a detailed introduction of the current status of China float glass technology, covering the respects of production line scale, product variety, product quality, technology & equipment level, etc., and makes prospects for internationalized development trend of China flat glass industry.

    Este trabajo presenta una breve recopilación de los desarrollos en curso de la tecnología de vidrio flotado en China, acompañada por una introducción detallada de la situación de la industria y tecnología del vidrio plano en este país. Se cubren los aspectos de líneas de producción, variedad de productos, calidad de los productos, tecnología y nivel de equipamiento, etc. y se hacen algunas predicciones sobre las tendencias de desarrollo e internacionalización de la industria china de vidrio plano.

  1. Current Status on Resource and Recycling Technology for Rare Earths

    Science.gov (United States)

    Takeda, Osamu; Okabe, Toru H.

    2014-06-01

    The development of recycling technologies for rare earths is essential for resource security and supply stability because high-quality rare earth mines are concentrated in China and the demand for rare earth metals such as neodymium and dysprosium, used as raw materials in permanent magnets (neodymium magnet), is expected to increase rapidly in the near future. It is also important to establish a recycling-based society from the perspective of the conservation of finite and valuable mineral resources and the reduction of the environmental load associated with mining and smelting. In this article, the current status of rare earth resource as well as that of recycling technology for the magnets is reviewed. The importance of establishing an efficient recycling process for rare earths is discussed from the characteristics of supply chain of rare earths, and the technological bases of the recycling processes for the magnet are introduced. Further, some fundamental researches on the development of new recycling processes based on pyrometallurgical process are introduced, and the features of the recycling processes are evaluated.

  2. Indian fast reactor technology: Current status and future programme

    Indian Academy of Sciences (India)

    S C Chetal; P Chellapandi

    2013-10-01

    The paper brings out the advantages of fast breeder reactor and importance of developing closed nuclear fuel cycle for the large scale energy production, which is followed by its salient safety features. Further, the current status and future strategy of the fast reactor programme since the inception through 40 MWt/13 MWe Fast Breeder Test Reactor (FBTR), is highlighted. The challenges and achievements in science and technology of FBRs focusing on safety are described with the particular reference to 500 MWe capacity Prototype Fast Breeder Reactor (PFBR), being commissioned at Kalpakkam. Roadmap with comprehensive R&D for the large scale deployment of Sodium Cooled Fast Reactor (SFRs) and timely introduction of metallic fuel reactors with emphasis on breeding gain and enhanced safety are being brought out in this paper.

  3. Dish concentrators for solar thermal energy - Status and technology development

    Science.gov (United States)

    Jaffe, L. D.

    1981-01-01

    Comparisons are presented of point-focusing, or 'dish' solar concentrator system features, development status, and performance levels demonstrated to date. In addition to the requirements of good optical efficiency and high geometric concentration ratios, the most important future consideration in solar thermal energy dish concentrator design will be the reduction of installed and lifetime costs, as well as the materials and labor costs of production. It is determined that technology development initiatives are needed in such areas as optical materials, design wind speeds and wind loads, structural configuration and materials resistance to prolonged exposure, and the maintenance of optical surfaces. The testing of complete concentrator systems, with energy-converting receivers and controls, is also necessary. Both reflector and Fresnel lens concentrator systems are considered.

  4. Current status and potential perspectives in classical radiotherapy technology

    Directory of Open Access Journals (Sweden)

    Dabić-Stanković Kata M.

    2004-01-01

    Full Text Available Introduction and potentials of classical radiotherapy After purchase of radiotherapy equipment in 2003, classic radiation therapy in Serbia will reach the highest world level. In order to define the highest standards in radiation technology, we analyzed the current status and potential perspectives of radiation therapy. Technological levels of radiotherapy in developed countries An analysis of present situation in the USA, assumed as the most developed in the world, was done. Available data, collected in the last 3 years (equipment assortment, therapy modalities, workload and manpower for 284 radiotherapy centers, out of potential 2050, were analyzed. Results were presented as crude percentage and mached to point current status. Results of analysis and discussion The analysis showed that CLINAC accelerators are the most popular (82.7%, as well as, ADAC (43.7% and Focus (CMS (27.4% systems for therapy planning. Movement towards virtual simulation is evident (59.3%, although classic ”simulation” is not fully eliminated from the radiotherapy chain. The most popular brachytherapy afterloader is Microselectron HDR (71%. About 64.4% centers use IMPAC communication/verification/record system that seems more open than Varis. All centers practice modern radiotherapy modalities and techniques (CFRT, IMRT, SRS/SRT, TBI, IORT, IVBHRT, HDR BHRT, etc.. CT and MRI availability is out of question, but PET is available in 3% of centers, however this percentage is rapidly growing. Up to 350 new patients per year are treated by one accelerator (about 35 pts. a day. Centers are relatively small and utilize 2-3 accelerators on average. Average FTE staffing norm is 4 radiation oncologists, 2-3 medical radiotherapy physicists, about 3 certified medical dosimetrists and about 6 radiotherapy technologists. Technological aspects and conclusion In the past 5 years relative stagnation in classic radiotherapy has been observed. In spite of substantial investments in

  5. 77 FR 31366 - Medicare Program; Semi-Annual Meeting of the Advisory Panel on Hospital Outpatient Payment (HOP...

    Science.gov (United States)

    2012-05-25

    ... the cost report, pass-through payments, correct coding, new technology applications (including...: Representatives must contact our Public Affairs Office at (202) 690-6145. Advisory Committees' Information Lines... compression, revisions to the cost report, pass-through payments, correct coding, new technology...

  6. Heavy vehicle propulsion system materials program semi-annual progress report for October 1997 through March 1998

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, D.R.

    1998-06-01

    The purpose of the Heavy Vehicle Propulsion System materials Program is the development of materials: ceramics, intermetallics, metal alloys, and metal and ceramic coatings, to support the dieselization of class 1--3 trucks to realize a 35{percent} fuel-economy improvement over current gasoline-fueled trucks and to support commercialization of fuel-flexible LE-55 low-emissions, high-efficiency diesel engines for class 7--8 trucks. The Office of Transportation Technologies, Office of Heavy Vehicle Technologies (OTT OHVT) has an active program to develop the technology for advanced LE-55 diesel engines with 55{percent} efficiency and low emissions levels of 2.0 g/bhp-h NO{sub x} and 0.05 g/bhp-h particulates. The goal is also for the LE-55 engine to run on natural gas with efficiency approaching that of diesel fuel. The LE-55 program is being completed in FY 1997 and, after approximately 10 years of effort, has largely met the program goals of 55{percent} efficiency and low emissions. However, the commercialization of the LE-55 technology requires more durable materials than those that have been used to demonstrate the goals. Heavy Vehicle Propulsion System Materials will, in concert with the heavy-duty diesel engine companies, develop the durable materials required to commercialize the LE-55 technologies.

  7. LNG - Status in Denmark. Technology and potential. Project report

    Energy Technology Data Exchange (ETDEWEB)

    Naeslund, M.

    2012-05-15

    The interest for LNG both on a small and a large scale is increasing worldwide. The experiences and knowledge on LNG is limited in Denmark. The Danish gas companies' Technical Management Group (TCG) has asked for a status report including a technology description and an evaluation of the potential in Denmark. A survey of primarily small-scale LNG technology is done in the report. The focus is motivated by the new areas of gas utilisation that become possible with small-scale LNG. Small-scale LNG in this study is defined as LNG stored and used at the application or in an isolated gas grid. The small-scale use of LNG has today an almost negligible share of the total LNG trade but offers interesting new applications for gas utilisation. LNG on a small scale can be used primarily as: 1) Ship fuel. 2) Truck fuel (heavy duty long distance). 3) Individual users not connected to the natural gas grid. 4) Backup for upgraded biogas to individual users and vehicle fleets. 5) Security of supply or supply enhancement of heavily loaded parts of the gas grid. 6) Small-scale storage and/or peak shaving. All but the first topics are natural uses for the current Danish gas distributors. LNG as ship fuel may engage other specialized LNG companies. The report contains a technical description of the parts in primarily small-scale LNG handling and operation. Liquefaction, transport, storage, engine technologies, gas quality and safety aspects related to LNG are covered. There seem to be two more or less separate paths for LNG in Denmark, onshore and off-shore use. These are not, apparently, sharing their experiences and knowledge. Rules and regulations are also different which may create some problems in the interface, for example ship bunkering. Further studies are suggested in the area of gas quality and engine technologies and adaptation of foreign guidelines for small-scale installations to Danish conditions. These guidelines ought to be based on international standards and

  8. The status of assisted reproductive technology in Korea in 2012.

    Science.gov (United States)

    Lee, Gyoung Hoon; Song, Hyun Jin; Choi, Young Min; Han, Hyuck Dong

    2017-03-01

    This study was designed to report the status of assisted reproductive technology (ART) therapy in South Korea between January 1, 2012 and December 31, 2012. A localized online survey, originally developed by the International Committee Monitoring Assisted Reproductive Technologies, was first launched and provided to all available ART centers via email in 2015. Fresh embryo transfer (FET) cases were categorized as standard in vitro fertilization, intracytoplasmic sperm injection (ICSI), or half-ICSI. Thawed embryo transfer (TET) and other related procedures, including surgical sperm retrieval, were surveyed. Data from 33,956 ovum pick-up procedures were provided by 75 clinics in 2012. Of the 33,088 cycles in which ovums were retrieved, a complete transfer was performed in 90.5% (29,932 cycles). In addition, 10,079 FET cycles were confirmed to have resulted in clinical pregnancy, representing a pregnancy rate of 30.5% per ovum pick-up and 33.7% per ET. The most common number of embryos transferred in FET was 2 (41.6%), followed by 3 (34.0%), and non-elective single ETs (10.0%). Of the 10,404 TET cycles in which transfer was completed, 3,760 clinical pregnancies (36.1%) were confirmed by ultrasonography. The overall clinical pregnancy rate for FET and TET cycles in 2012 was higher than in 2011 (33.7% vs. 33.2% and 36.1% vs. 31.1%, respectively). The most common number of embryos transferred in FET cycles was 2, unlike in 2011.

  9. Current status of assisted reproductive technology in Korea, 2010.

    Science.gov (United States)

    Lee, Gyoung Hoon; Song, Hyun Jin; Lee, Kyu Sup; Choi, Young Min

    2015-03-01

    Great advances have been made in the field of assisted reproductive technology (ART) since the first in vitro fertilization (IVF) baby was born in Korea. This study was designed to report on the current status of ART therapy in South Korea between January 1 and December 31 of 2010. A revised survey, originally developed by the International Committee Monitoring Assisted Reproductive Technologies, was sent to all available ART centers via email in 2013. Fresh embryo transfer (FET) cases were categorized into standard IVF or intracytoplasmic sperm injections. These cases, the thawing embryo transfer (TET) cases, and other related procedures were surveyed. Data from 30,785 ART procedures were provided by 78 clinics. Of the 28,200 cycles in which oocytes were retrieved, 92.2% of these cycles were completely transferred. In addition, 8,075 cycles were confirmed to be clinical pregnancies in the FET cycles, which represent a pregnancy rate of 28.6% per oocyte pick-up and 31.1% per embryo transfer. The most common number of embryos transferred in the FET was three embryos (37.3%) followed by two embryos (36.3%) and one embryo (14.0%). Of the 6,648 TET cycles transferred, 2,356 clinical pregnancies were confirmed by ultrasonography. The most common number of embryos in the TET group was two embryos (43.4%) followed by three embryos (25.4%) and one embryo (18.9%). The clinical pregnancy rate per transfer in the FET cycles was similar in 2009 and 2010. Among the FET cycles where one or two embryos were transferred, the clinical pregnancy rate per transfer slightly increased from 2009 (28.7%) to 2010 (32.9%).

  10. Wind turbines: current status, obstacles, trends and technologies

    Science.gov (United States)

    Konstantinidis, E. I.; Botsaris, P. N.

    2016-11-01

    The last decade the installation of wind farms around the world is spreading rapidly and wind energy has become a significant factor for promoting sustainable development. The scope of the present study is to indicate the present status of global wind power expansion as well as the current state of the art in the field of wind turbine technology. The RAM (reliability/availability/maintenance) section is also examined and the Levelized Cost of Energy for onshore/ offshore electricity production is presented. Negative consequences that go with the rapid expansion of wind power like accidents, environmental effects, etc. are highlighted. Especially visual impact to the landscape and noise pollution are some factors that provoke social reactions. Moreover, the complicated and long permitted process of a wind power plant, the high capital cost of the investment and the grid instability due to the intermittent nature of wind, are also significant obstacles in the development of the wind energy production. The current trends in the field of research and development of onshore and offshore wind power production are analyzed. Finally the present study is trying to achieve an estimation of where the wind industry targets for the years to come.

  11. Current status of assisted reproductive technology in Korea, 2011.

    Science.gov (United States)

    Lee, Gyoung Hoon; Song, Hyun Jin; Lee, Kyu Sup; Choi, Young Min

    2016-03-01

    The number of assisted reproductive technology (ART) clinics, ART cycles, clinical pregnancy rate (CPR), and number of newborns conceived using ART have steadily increased in South Korea. This aim of this study was to describe the status of ART in South Korea between January 1 and December 31, 2011. A localized online survey was created and sent to all available ART centers via email in 2015. Fresh embryo transfer (FET) cases were categorized depending on whether standard in vitro fertilization, intracytoplasmic sperm injection (ICSI), or half-ICSI procedures were used. Thawed embryo transfer (TET) and other related procedures were surveyed. Data from 36,990 ART procedures were provided by 74 clinics. Of the 30,410 cycles in which oocytes were retrieved, a complete transfer was performed in 91.0% (n=27,683). In addition, 9,197 cycles were confirmed to be clinical pregnancies in the FET cycles, representing a pregnancy rate of 30.2% per oocyte pick-up and 33.2% per ET. The most common number of embryos transferred in the FET procedures was three (38.1%), followed by two (34.7%) and one (14.3%). Of the 8,826 TET cycles, 3,137 clinical pregnancies (31.1%) were confirmed by ultrasonography. While the overall clinical pregnancy rate for the TET cycles performed was lower than the rate reported in 2010 (31.1% vs. 35.4%), the overall CPR for the FET cycles was higher than in 2010 (33.2% in 2011 and 32.9% in 2010). The most common number of embryos transferred in FET cycles was three, as was the case in 2010.

  12. Subtask 2.7 -- Mercury capture on solid surfaces and aerosols. Semi-annual report, July 1--December 31, 1996

    Energy Technology Data Exchange (ETDEWEB)

    Schultz, R.L.

    1997-08-01

    Determining the fly ash properties responsible for the capture of mercury in coal-fired power generation systems is key to understanding and controlling mercury emissions in these systems. Several capture mechanisms and interactions may be possible, such as condensation, chemical adsorption, physical adsorption, chemical bonding, and amalgamation. The chemical nature of the exposed surfaces and the amount of surface area are likely to affect the amount of mercury capture, so both of these parameters must be explored. Since much of the fly ash surface area is concentrated on submicron particles, the interaction of mercury with submicron particles needs to be evaluated. Another possible explanation of mercury capture on fly ash is the formation of amalgams with other metal species that may be present in the fly ash; if this is true, amalgamation may be a viable control technology. The project objectives are to relate mercury capture by fly ash to chemical and physical properties of the fly ash, determine mercury associations with submicron aerosols, evaluate mercury capture on metal sorbents, and relate experimental results to predictions based on state-of-the-art models. Results to date on these activities are described.

  13. Task 6.3 -- Engineering performance of advanced structural materials. Semi-annual report, January 1--June 30, 1995

    Energy Technology Data Exchange (ETDEWEB)

    Hurley, J.P.; Kay, J.; Nowok, J.W.; Schuster, M.

    1997-08-01

    SiC sublimes without melting at temperatures over 2,000 C. This makes SiC difficult to use in the fabrication of large structures, because pieces made from SiC cannot be joined together in the same way that metals can be welded. Therefore, the size of the monolithic ceramic structures that can be manufactured are limited by the size of the sintering furnaces (approximately 10 feet for sintered alpha silicon carbide). In order to make larger objects such as heat exchangers, many small ceramic pieces must be fused or joined. In addition, repair of the objects will require the use of field joining techniques. At present, no joining techniques for high-temperature structural ceramics are routinely available. The objective of this work at the Energy and Environmental Research Center (EERC) is to develop a patentable technique for joining large silicon based advanced ceramics in the field. The key to developing a successful technique will be the use of reactive joining compounds to lower the joining temperature but without leaving continuous channels of unreacted compounds that can weaken the joint or be conduits for corrosion at temperatures over 1,400 C. Special efforts will be made in this project to transfer the developed technologies to the materials industry via licensing agreements through the EERC Foundation.

  14. Compared efficacy of repeated annual and semi-annual doses of ivermectin and diethylcarbamazine for prevention of Wuchereria bancrofti filariasis in French Polynesia. Final evaluation.

    Science.gov (United States)

    Cartel, J L; Spiegel, A; Nguyen Ngnoc, L; Cardines, R; Plichart, R; Martin, P M; Roux, J F; Moulia-Pelat, J P

    1992-06-01

    In October 1989, 58 apparently healthy Polynesian Wuchereria bancrofti carriers, in whom microfilarial (mf) density was greater than or equal to 100 mf/ml, were randomly allocated to treatment groups receiving single doses of either ivermectin at 100 mcg/kg or diethylcarbamazine (DEC) at 3 and 6 mg/kg. Six months later, half of the carriers initially treated with ivermectin 100 mcg/kg or DEC 3 mg/kg were given a second similar dose while the rest were given a placebo. Six months later again, all of the carriers received a last treatment dose similar to the initial one. The results observed during the 12-month period which followed this last treatment have confirmed that (i) in terms of immediate clearance or complete negativation of microfilaremia, the efficacy of ivermectin is higher than that of DEC (at dosage of 3 or 6 mg/kg), (ii) DEC is more effective than ivermectin in sustaining the reduction of microfilaremia over a longer period of time and (iii) the efficacy of repeated single doses of either DEC 3 mg/kg or ivermectin 100 mcg/kg is much higher when given semi-annually than annually.(ABSTRACT TRUNCATED AT 250 WORDS)

  15. A Quantitative Examination of the Educational Technology Characteristics of Ohio Schools and Their Blue Ribbon Status

    Science.gov (United States)

    Goon, Dean A.

    2012-01-01

    The purpose of this study was to analyze data from Ohio schools and the frequency of use of educational technology, a teacher's comfort level using technology, and a teacher's beliefs about the effect of educational technology on teaching and learning based upon the school's Blue Ribbon award status. The study used an ex-post facto, quantitative…

  16. 75 FR 39664 - Grant of Authority For Subzone Status Materials Science Technology, Inc. (Specialty Elastomers...

    Science.gov (United States)

    2010-07-12

    ... Foreign-Trade Zones Board Grant of Authority For Subzone Status Materials Science Technology, Inc... Materials Science Technology, Inc., located in Conroe, Texas, (FTZ Docket 46-2009, filed October 27, 2009... Science Technology, Inc., located in Conroe, Texas (Subzone 265C), as described in the application...

  17. Status of the Third Miniature Sensor Technology Integration Satellite Mission

    OpenAIRE

    Barnhart, David; Hurtz, Rick; McClelland, Jim; Cellarius, Mark; Meyers, AI

    1994-01-01

    The MSTI-3 satellite is the third in a series established to test, in realistic scenarios, miniature spacecraft and sensor technologies for missile detection and tracking on low-cost, low-earth orbit technology demonstration satellites. Cooperative demonstrations are planned to combine MSTI-provided target track file information, with interceptor technology tests, to fully demonstrate technologies associated with theater missile defense (TMO) targeting. The program is sponsored by the Ballist...

  18. Principles and status of neutron-based inspection technologies

    Science.gov (United States)

    Gozani, Tsahi

    2011-06-01

    and energetically significantly different from the background, thus making them readily distinguishable. The penetrability of neutrons as probes and signatures as well as the gamma ray signatures make neutron interrogation applicable to the inspection of large conveyances such as cars, trucks, marine containers and also smaller objects like explosive mines concealed in the ground. The application of nuclear interrogation techniques greatly depends on operational requirements. For example explosive mines and IED detection clearly require one-sided inspection, which excludes transmission based inspection (e.g., transmission radiography) and greatly limits others. The technologies developed over the last decades are now being implemented with good results. Further advances have been made over the last several years that increase the sensitivity, applicability and robustness of these systems. The principle, applications and status of neutron-based inspection techniques will be reviewed.

  19. Planetary Science Technology Infusion Study: Findings and Recommendations Status

    Science.gov (United States)

    Anderson, David J.; Sandifer, Carl E., II; Sarver-Verhey, Timothy R.; Vento, Daniel M.; Zakrajsek, June F.

    2014-01-01

    The Planetary Science Division (PSD) within the National Aeronautics and Space Administrations (NASA) Science Mission Directorate (SMD) at NASA Headquarters sought to understand how to better realize a scientific return on spacecraft system technology investments currently being funded. In order to achieve this objective, a team at NASA Glenn Research Center was tasked with surveying the science and mission communities to collect their insight on technology infusion and additionally sought inputs from industry, universities, and other organizations involved with proposing for future PSD missions. This survey was undertaken by issuing a Request for Information (RFI) activity that requested input from the proposing community on present technology infusion efforts. The Technology Infusion Study was initiated in March 2013 with the release of the RFI request. The evaluation team compiled and assessed this input in order to provide PSD with recommendations on how to effectively infuse new spacecraft systems technologies that it develops into future competed missions enabling increased scientific discoveries, lower mission cost, or both. This team is comprised of personnel from the Radioisotope Power Systems (RPS) Program and the In-Space Propulsion Technology (ISPT) Program staff.The RFI survey covered two aspects of technology infusion: 1) General Insight, including: their assessment of barriers to technology infusion as related to infusion approach; technology readiness; information and documentation products; communication; integration considerations; interaction with technology development areas; cost-capped mission areas; risk considerations; system level impacts and implementation; and mission pull. 2) Specific technologies from the most recent PSD Announcements of Opportunities (AOs): The Advanced Stirling Radioisotope Generator (ASRG), aerocapture and aeroshell hardware technologies, the NASA Evolutionary Xenon Thruster (NEXT) ion propulsion system, and the

  20. Status quo and development trend of breast biopsy technology

    National Research Council Canada - National Science Library

    Zhang, Yan-Jun; Wei, Lichun; Li, Jie; Zheng, Yi-Qiong; Li, Xi-Ru

    2013-01-01

    .... With the continuous advancement of diagnostic and treatment technology for breast cancer, collection of diseased tissue has also undergone a gradual transition from traditional open surgery to biopsy...

  1. Status of NASA's Earth-to-Orbit Propulsion Technology program

    Science.gov (United States)

    Escher, W. J. D.; Moses, J. L.; Gorland, S. H.; Stephenson, F. W.

    1991-01-01

    Earth-to-Orbit Propulsion Technology program is considered. The program's three major technical areas include combustion devices, turbomachinery, and controls and monitoring. Directed toward reducing acquisition and operations risk and cost the ETO program is conducted in two serially-performed categories: technology acquisition and technology validation. The former is constituted of studies, tool building, and bench-scale experimentation. The latter involves next-step verification of the acquisition results and findings, usually leading to a test-bed validated technology 'product'.

  2. Lobbying Semi-Annual Activity

    Data.gov (United States)

    Montgomery County of Maryland — This dataset contains Registration and Activity Reporting information lobbyists have provided. The dollar figures in the far right columns are the total of expenses...

  3. The Impact of Generational Status on Instructors' Reported Technology Usage

    Science.gov (United States)

    Skidmore, Susan Troncoso; Zientek, Linda Reichwein; Saxon, D. Patrick; Edmonson, Stacey L.

    2014-01-01

    Although the majority of colleges and universities are equipped with the latest instructional technologies, an appreciable integration of technology has not been observed in instructional practices (Flavin, 2013; Garrison & Akyol, 2009; Salinas, 2008). The purpose of this research is to understand the impact that generational differences can…

  4. Status and prospect of radiation processing technology in Malaysia

    Energy Technology Data Exchange (ETDEWEB)

    Khairul Zaman Hj. Mohd Dahlan; Nahrul Khair Alang Md Rashid [Malaysian Institute for Nuclear Technology Research (MINT), Bangi, Selangor Darul Ehsan (Malaysia)

    2001-03-01

    Radiation processing technology in Malaysia is gaining acceptance by the local industry. The technology has proven to enhance the industrial efficiency, productivity and improve product quality and competitiveness. For many years, variety of radiation crosslinkable materials based on synthetic polymers have been produced either in the form of thermoplastic resins, polymer blends or composites. Today, effort is being focused towards producing environmentally friendly and biodegradable materials using natural polymers. The government of Malaysia through the Malaysian Institute for Nuclear Technology Research (MINT) has developed research program to utilize indigenous materials such as natural rubber, palm oil and polysaccharide. Radiation processing technology is used to process (crosslink/grafting/curing) the materials at a competitive cost. This technology can be applied in several industrial sectors such as automobile, aerospace, construction and healthcare. (author)

  5. Status quo and development trend of lost foam casting technology

    Directory of Open Access Journals (Sweden)

    Fan Zitian

    2014-07-01

    Full Text Available Lost foam casting (LFC technology has been widely applied to cast iron and cast steel. However, the development of LFC for Al and Mg alloys was relatively slower than that for cast iron and cast steel. The application of LFC to Al and Mg alloys needs more effort, especially in China. In this paper, the development history of LFC is reviewed, and the application situations of LFC to Al and Mg alloys are mainly discussed. Meanwhile, the key problems of LFC for Al and Mg alloys are also pointed out. Finally, the prospects for LFC technology are discussed, and some special new LFC technologies are introduced for casting Al and Mg alloys. In future, the development trends of green LFC technology mainly focus on the special new LFC methods, metal material, coating, heat treatment, new foam materials as well as purification technology of tail gas, etc.

  6. Status quo and development trend of lost foam casting technology

    Institute of Scientific and Technical Information of China (English)

    Fan Zitian; Jiang Wenming; Liu Fuchu; Xiao Botao

    2014-01-01

    Lost foam casting (LFC) technology has been widely applied to cast iron and cast steel. However, the development of LFC for Al and Mg aloys was relatively slower than that for cast iron and cast steel. The application of LFC to Al and Mg aloys needs more effort, especially in China. In this paper, the development history of LFC is reviewed, and the application situations of LFC to Al and Mg aloys are mainly discussed. Meanwhile, the key problems of LFC for Al and Mg aloys are also pointed out. Finaly, the prospects for LFC technology are discussed, and some special new LFC technologies are introduced for casting Al and Mg alloys. In future, the development trends of green LFC technology mainly focus on the special new LFC methods, metal material, coating, heat treatment, new foam materials as wel as puriifcation technology of tail gas, etc.

  7. The Status of Basic Technology in Cross River State Junior ...

    African Journals Online (AJOL)

    info

    Copyright © IAARR, 2007-2016: www.afrrevjo.net. Indexed African ... instructional materials for teaching basic technology in junior secondary school in. Cross River State and .... resource utilization. Conference paper, Nigeria Audio – visual.

  8. Extravehicular Activity (EVA) Technology Development Status and Forecast

    Science.gov (United States)

    Chullen, Cinda; Westheimer, David T.

    2010-01-01

    Beginning in Fiscal Year (FY) 2011, Extravehicular activity (EVA) technology development became a technology foundational domain under a new program Enabling Technology Development and Demonstration. The goal of the EVA technology effort is to further develop technologies that will be used to demonstrate a robust EVA system that has application for a variety of future missions including microgravity and surface EVA. Overall the objectives will be reduce system mass, reduce consumables and maintenance, increase EVA hardware robustness and life, increase crew member efficiency and autonomy, and enable rapid vehicle egress and ingress. Over the past several years, NASA realized a tremendous increase in EVA system development as part of the Exploration Technology Development Program and the Constellation Program. The evident demand for efficient and reliable EVA technologies, particularly regenerable technologies was apparent under these former programs and will continue to be needed as future mission opportunities arise. The technological need for EVA in space has been realized over the last several decades by the Gemini, Apollo, Skylab, Space Shuttle, and the International Space Station (ISS) programs. EVAs were critical to the success of these programs. Now with the ISS extension to 2028 in conjunction with a current forecasted need of at least eight EVAs per year, the EVA technology life and limited availability of the EMUs will become a critical issue eventually. The current Extravehicular Mobility Unit (EMU) has vastly served EVA demands by performing critical operations to assemble the ISS and provide repairs of satellites such as the Hubble Space Telescope. However, as the life of ISS and the vision for future mission opportunities are realized, a new EVA systems capability could be an option for the future mission applications building off of the technology development over the last several years. Besides ISS, potential mission applications include EVAs for

  9. Current status and future tasks of the Sunshine Project. (Development of new energy technology)

    Energy Technology Data Exchange (ETDEWEB)

    Takada, T.

    1983-01-01

    Since its inception in 1974, the Sunshine Project has involved advances in new energy technology in many areas. The present report covers the principal areas of activity in 1980, examining the development status of solar energy, goethermal energy, coal liquefaction and gasification, hydrogen energy, wind power, ocean thermal energy conversion, etc. Future trends and tasks of new energy technology development are discussed. (In Japanese)

  10. Present status and trend of technological developments for millimeter wave sensing systems

    Science.gov (United States)

    Ihara, Toshio; Okamoto, Ken'ichi; Kitamura, Katsumi; Awaka, Jun; Manabe, Takeshi

    1989-06-01

    Millimeter wave atmospheric propagation characteristics and state-of-the-art millimeter wave component technologies are reviewed. Particular attention is given to the current status of technological developments for millimeter wave sensing systems such as automotive radars, automatic location identification systems, and industrial instrumentation radars.

  11. Current Status of Helium-3 Alternative Technologies for Nuclear Safeguards

    Energy Technology Data Exchange (ETDEWEB)

    Henzlova, Daniela [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Kouzes, R. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); McElroy, R. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Peerani, P. [European Commission, Ispra (Italy). Joint Research Centre; Aspinall, M. [Hybrid Instruments Ltd., Birmingham (United Kingdom); Baird, K. [Intl Atomic Energy Agency (IAEA), Vienna (Austria); Bakel, A. [National Nuclear Security Administration (NNSA), Washington, DC (United States); Borella, M. [SCK.CEN, Mol (Belgium); Bourne, M. [Univ. of Michigan, Ann Arbor, MI (United States); Bourva, L. [Canberra Ltd., Oxford (United Kingdom); Cave, F. [Hybrid Instruments Ltd., Birmingham (United Kingdom); Chandra, R. [Arktis Radiation Detectors Ltd., Zurich (Sweden); Chernikova, D. [Chalmers Univ. of Technology (Sweden); Croft, S. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Dermody, G. [Symetrica Inc., Maynard, MA (United States); Dougan, A. [National Nuclear Security Administration (NNSA), Washington, DC (United States); Ely, J. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Fanchini, E. [Istituto Nazionale di Fisica Nucleare (INFN), Milano (Italy); Finocchiaro, P. [Istituto Nazionale di Fisica Nucleare (INFN), Milano (Italy); Gavron, Victor [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Kureta, M. [Japan Atomic Energy Agency (JAEA), Tokai (Japan); Ianakiev, Kiril Dimitrov [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Ishiyama, K. [Japan Atomic Energy Agency (JAEA), Tokai (Japan); Lee, T. [Intl Atomic Energy Agency (IAEA), Vienna (Austria); Martin, Ch. [Symetrica Inc., Maynard, MA (United States); McKinny, K. [GE Reuter-Stokes, Twinsburg, OH (United States); Menlove, Howard Olsen [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Orton, Ch. [National Nuclear Security Administration (NNSA), Washington, DC (United States); Pappalardo, A. [Istituto Nazionale di Fisica Nucleare (INFN), Milano (Italy); Pedersen, B. [European Commission, Ispra (Italy). Joint Research Centre; Peranteau, D. [National Nuclear Security Administration (NNSA), Washington, DC (United States); Plenteda, R. [Intl Atomic Energy Agency (IAEA), Vienna (Austria); Pozzi, S. [Univ. of Michigan, Ann Arbor, MI (United States); Schear, M. [Symetrica Inc., Maynard, MA (United States); Seya, M. [Japan Atomic Energy Agency (JAEA), Tokai (Japan); Siciliano, E. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Stave, S. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Sun, L. [Proportional Technologies Inc., Houston, TX (United States); Swinhoe, Martyn Thomas [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Tagziria, H. [European Commission, Ispra (Italy). Joint Research Centre; Vaccaro, S. [DG Energy (Luxembourg); Takamine, J. [Japan Atomic Energy Agency (JAEA), Tokai (Japan); Weber, A. -L. [Inst. for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses (France); Yamaguchi, T. [Japan Atomic Energy Agency (JAEA), Tokai (Japan); Zhu, H. [National Nuclear Security Administration (NNSA), Washington, DC (United States)

    2015-12-01

    International safeguards inspectorates (e.g., International Atomic Energy Agency {IAEA}, or Euratom) rely heavily on neutron assay techniques, and in particular, on coincidence counters for the verification of declared nuclear materials under safeguards and for monitoring purposes. While 3He was readily available, the reliability, safety, ease of use, gamma-ray insensitivity, and high intrinsic thermal neutron detection efficiency of 3He-based detectors obviated the need for alternative detector technologies. However, the recent decline of the 3He gas supply has triggered international efforts to develop and field neutron detectors that make use of alternative materials. In response to this global effort, the U.S. Department of Energy’s (DOE) National Nuclear Security Administration (NNSA) and Euratom launched a joint effort aimed at bringing together international experts, technology users and developers in the field of nuclear safeguards to discuss and evaluate the proposed 3He alternative materials and technologies. The effort involved a series of two workshops focused on detailed overviews and viability assessments of various 3He alternative technologies for use in nuclear safeguards applications. The key objective was to provide a platform for collaborative discussions and technical presentations organized in a compact, workshop-like format to stimulate interactions among the participants. The meetings culminated in a benchmark exercise providing a unique opportunity for the first inter-comparison of several available alternative technologies. This report provides an overview of the alternative technology efforts presented during the two workshops along with a summary of the benchmarking activities and results. The workshop recommendations and key consensus observations are discussed in the report, and used to outline a proposed path forward and future needs foreseeable in the area of 3

  12. Status and prospects of frozen soil studies using CT technology

    Institute of Scientific and Technical Information of China (English)

    ShiJie Chen; ShuPing Zhao; Wei Ma; QianTao Zhu; LiLi Xing

    2014-01-01

    This paper introduces the characteristics of Computed Tomography (CT) technology and reviews its history, current situation, representative achievements, and use of using CT technology on frozen soil study, including auxiliary equipment specially de-signed for frozen soil studies. CT numbers are used to analyze frozen soil internal structure change, defining and exploring dam-age evolution, and use of CT images on observing soil mesostructure. Finally, this paper presents existing problems confronted by using CT in frozen soil studies, possible solutions and challenges, among which, we introduce high quality CT image processing for frozen soils, and relations between CT number change and each component change on frozen soil samples within the region of interest. It is shown that present CT technology is one of the most ideal and effective technology to study frozen soil mesostructure using non-destructive testing. CT technology will play a key role in the study and development in the field of frozen soil by means of auxiliary equipment and the digital imaging processing.

  13. A status of the Turbine Technology Team activities

    Science.gov (United States)

    Griffin, Lisa W.

    1992-01-01

    The recent activities of the Turbine Technology Team of the Consortium for Computational Fluid Dynamics (CFD) Application in Propulsion Technology is presented. The team consists of members from the government, industry, and universities. The goal of this team is to demonstrate the benefits to the turbine design process attainable through the application of CFD. This goal is to be achieved by enhancing and validating turbine design tools for improved loading and flowfield definition and loss prediction, and transferring the advanced technology to the turbine design process. In order to demonstrate the advantages of using CFD early in the design phase, the Space Transportation Main Engine (STME) turbines for the National Launch System (NLS) were chosen on which to focus the team's efforts. The Turbine Team activities run parallel to the STME design work.

  14. Status quo and development trend of breast biopsy technology.

    Science.gov (United States)

    Zhang, Yan-Jun; Wei, Lichun; Li, Jie; Zheng, Yi-Qiong; Li, Xi-Ru

    2013-02-01

    Triple assessment is a standard method for assessment of breast diseases, which includes clinical evaluation, radiographic assessment and pathological assessment. Biopsy for breast disease is the gold standard for pathological assessment, including incisional biopsy, excisional biopsy, core needle biopsy, vacuum-assisted biopsy and bite biopsy. With the continuous advancement of diagnostic and treatment technology for breast cancer, collection of diseased tissue has also undergone a gradual transition from traditional open surgery to biopsy. This review summarizes the current situation and development of breast biopsy technology to provide an insight into the latest details such as the safety and reliability as the basis for selection of the most appropriate techniques for specific settings.

  15. A silica/fly ash-based technology for controlling pyrite oxidation. Semi-annual, March 1, 1996 - August 31, 1996

    Energy Technology Data Exchange (ETDEWEB)

    Evangelou, V.P. [USDOE Pittsburgh Energy Technology Center, PA (United States)

    1996-12-31

    The overall objective is to develop methodologies by which metasilicate or fly ash may produce an effective coating on pyrite surfaces for inhibiting pyrite oxidation. During the past six months, the investigators produced wet chemistry evidence demonstrating that pyrite-HCO{sub 3} complexes promote pyrite oxidation. This is an important finding for their over all strategy in controlling pyrite oxidation because it suggests that pyrite microencapsulation is important in order to control oxidation in near cirumneutral pH environments produced by addition of alkaline material, e.g., fly ash. In their previous studies, the investigators reported that pyrite microencapsulation could be carried out by reacting pyrite with a pH buffered solution and in the presence of metasilicate. The coating formed on the surface of pyrite appeared to be an amorphous iron-oxide-silicate material which inhibited pyrite oxidation. During this past six months, the investigators evaluated: the molecular mechanisms of silicate adsorption by iron oxide; the effects of silicate on the bulk and surface properties of iron oxides; and the effect of silicate on metal-cation adsorption properties by iron oxides.

  16. A Quantitative Examination of the Educational Technology Characteristics of Ohio Schools and Their Blue Ribbon Status

    Science.gov (United States)

    Goon, Dean A.

    2012-01-01

    The purpose of this study was to analyze data from Ohio schools and the frequency of use of educational technology, a teacher's comfort level using technology, and a teacher's beliefs about the effect of educational technology on teaching and learning based upon the school's Blue Ribbon award status. The study used an ex-post facto,…

  17. 21st Century Locomotive Technology: Quarterly Technical Status Report 28

    Energy Technology Data Exchange (ETDEWEB)

    Lembit Salasoo; Ramu Chandra

    2010-02-19

    Thermal testing of a subscale locomotive sodium battery module was initiated.to validate thermal models. The hybrid trip optimizer problem was formulated. As outcomes of this project, GE has proceeded to commercialize trip optimizer technology, and has initiated work on a state-of-the-art battery manufacturing plant for high energy density, sodium-based batteries.

  18. Status report on survey of alternative heat pumping technologies

    Energy Technology Data Exchange (ETDEWEB)

    Fischer, S.

    1998-07-01

    The Department of Energy is studying alternative heat pumping technologies to identify possible cost effective alternatives to electric driven vapor compression heat pumps, air conditioners, and chillers that could help reduce CO{sub 2} emissions. Over thirty different technologies are being considered including: engine driven systems, fuel cell powered systems, and alternative cycles. Results presented include theoretical efficiencies for all systems as well as measured performance of some commercial, prototype, or experimental systems. Theoretical efficiencies show that the alternative electric-driven technologies would have HSPFs between 4 and 8 Btu/Wh (1.2 to 2.3 W/W) and SEERs between 3 and 9.5 Btu/Wh (0.9 and 2.8 W/W). Gas-fired heat pump technologies have theoretical seasonal heating gCOPs from 1.1 to 1.7 and cooling gCOPs from 0.95 to 1.6 (a SEER 12 Btu/Wh electric air conditioner has a primary energy efficiency of approximately 1.4 W/W).

  19. Technology status of HNF-based monopropellants for satellite propulsion

    NARCIS (Netherlands)

    Marée, A.G.M.; Moerel, J.L.P.A.; Weiland-Veltmans, W.H.M.; Wierkx, F.J.M.; Zevenbergen, J.

    2004-01-01

    This paper reports on significant technological progress made over the last few years in determining the feasibility of HNF-based monopropellants. An HNF-based monopropellant is an interesting alternative for hydrazine as monopropellant for satellite propulsion. New non-toxic monopropellants based o

  20. Technology status of HNF-based monopropellants for satellite propulsion

    NARCIS (Netherlands)

    Marée, A.G.M.; Moerel, J.L.P.A.; Weiland-Veltmans, W.H.M.; Wierkx, F.J.M.; Zevenbergen, J.

    2004-01-01

    This paper reports on significant technological progress made over the last few years in determining the feasibility of HNF-based monopropellants. An HNF-based monopropellant is an interesting alternative for hydrazine as monopropellant for satellite propulsion. New non-toxic monopropellants based o

  1. Status of Assistive Technology Instruction in University Personnel Preparation Programs

    Science.gov (United States)

    Bausch, Margaret E.; Ault, Melinda Jones

    2012-01-01

    The reauthorization of IDEA mandates that students with a disability must be considered for assistive technology (AT). However, in order to implement the mandate, teachers and related service personnel must be knowledgeable about many aspects of AT. The purpose of this study was to gauge the extent to which personnel preparation programs believe…

  2. Biomass torrefaction technology: Techno-economic status and future prospects

    NARCIS (Netherlands)

    Batidzirai, B.; Mignot, A.P.R.; Schakel, W.B.; Junginger, H.M.; Faaij, A.P.C.

    2013-01-01

    Torrefaction is a promising bioenergy pre-treatment technology, with potential to make a major contribution to the commodification of biomass. However, there is limited scientific knowledge on the techno-economic performance of torrefaction. This study therefore improves available knowledge on torre

  3. Fuels from microalgae: Technology status, potential, and research requirements

    Energy Technology Data Exchange (ETDEWEB)

    Neenan, B.; Feinberg, D.; Hill, A.; McIntosh, R.; Terry, K.

    1986-08-01

    Although numerous options for the production of fuels from microalgae have been proposed, our analysis indicates that only two qualify for extensive development - gasoline and ester fuel. In developing the comparisons that support this conclusion, we have identified the major areas of microalgae production and processing that require extensive development. Technology success requires developing and testing processes that fully utilize the polar and nonpolar lipids produced by microalgae. Process designs used in these analyses were derived from fragmented, preliminary laboratory data. These results must be substantiated and integrated processes proposed, tested, and refined to be able to evaluate the commercial feasibility from microalgae. The production of algal feedstocks for processing to gasoline or ester fuel requires algae of high productivity and high lipid content that efficiently utilize saline waters. Species screening and development suggest that algae can achieve required standards taken individually, but algae that can meet the integrated requirements still elude researchers. Effective development of fuels from microalgae technology requires that R and D be directed toward meeting the integrated standards set out in the analysis. As technology analysts, it is inappropriate for us to dictate how the R and D effort should proceed to meet these standards. We end our role by noting that alternative approaches to meeting the feasibility targets have been identified, and it is now the task of program managers and scientists to choose the appropriate approach to assure the greatest likelihood of realizing a commercially viable technology. 70 refs., 39 figs., 35 tabs.

  4. Clean Coal Technologies in China: Current Status and Future Perspectives

    Directory of Open Access Journals (Sweden)

    Shiyan Chang

    2016-12-01

    Full Text Available Coal is the dominant primary energy source in China and the major source of greenhouse gases and air pollutants. To facilitate the use of coal in an environmentally satisfactory and economically viable way, clean coal technologies (CCTs are necessary. This paper presents a review of recent research and development of four kinds of CCTs: coal power generation; coal conversion; pollution control; and carbon capture, utilization, and storage. It also outlines future perspectives on directions for technology research and development (R&D. This review shows that China has made remarkable progress in the R&D of CCTs, and that a number of CCTs have now entered into the commercialization stage.

  5. Status quo and development trend of breast biopsy technology

    OpenAIRE

    Zhang, Yan-Jun; Wei, Lichun; Li, Jie; Yi-qiong ZHENG; Li, Xi-Ru

    2013-01-01

    Triple assessment is a standard method for assessment of breast diseases, which includes clinical evaluation, radiographic assessment and pathological assessment. Biopsy for breast disease is the gold standard for pathological assessment, including incisional biopsy, excisional biopsy, core needle biopsy, vacuum-assisted biopsy and bite biopsy. With the continuous advancement of diagnostic and treatment technology for breast cancer, collection of diseased tissue has also undergone a gradual t...

  6. The Status and Trends Of New Power Generation technology

    OpenAIRE

    Zhou, Jianguo

    2016-01-01

    Science and technology development cannot leave energy, and our life is also inseparable from energy. Oil and coal in all energy is 80%. However, oil and coal are non-renewable. If precious energies would disappear, what should we do? Oil and coal combustion and release of energy we need, and it also releases harmful gases which lead to damage of our home planet. These problems forces us to develop clean and renewable new energy. This report discusses mainly three new source...

  7. Program status 3. quarter -- FY 1994: ITER and technology

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-07-19

    During this quarter all technical work and documentation of the PULSAR design was completed. They also assisted UCLA in the planning of the DEMO program.In the area of RF technology, a decision was made to fabricate 4in x 4in gyrotron distributed window. An finally, they obtained good agreement between code predictions and measured data for the up and down field redeposition of tungsten in the DIMES-8 experiment.

  8. Dish concentrators for solar thermal energy: Status and technology development

    Science.gov (United States)

    Jaffe, L. D.

    1982-01-01

    Point-focusing concentrators under consideration for solar thermal energy use are reviewed. These concentrators differ in such characteristics as optical configuration, optical materials, structure for support of the optical elements and of the receiver, mount, foundation, drive, controls and enclosure. Concentrator performance and cost are considered. Technology development is outlined, including wind loads and aerodynamics; precipitation, sand, and seismic considerations; and maintenance and cleaning.

  9. Present status of phosphorus removal technology and its future prospect

    Energy Technology Data Exchange (ETDEWEB)

    Sato, Kazuaki

    1988-10-10

    This report outlines the special features of two representative processes of the technology for phosphorus removal from municipal sewage: a physical and chemical method and a biological method. In Japan, coagulating precipitation is carried out using aluminum sulphate or polyaluminum chloride but it is pointed out that this method increases the developed amount of sludge and drops the concentration and dehydration of sludge. Recently, crystallization dephosphorization technology is drawing much attention. This technology precipitates phosphorus as hydroxyapatite using phosphorus ore and bone black as crystal druse under the condition of the addition of lime. For biological dephosphorization, a phostrip method and an anaerobic-aerobic method are being developed. According to the estimation in Japan, it is possible to lower the concentration of total phosphorus in municipal sewage from 5mg*1/sup /minus/1/ to less than 1.0mg*1/sup /minus/1/ by this anaerobic-aerobic method. It is desirable that in the future technical features of the physical and chemical phosphorus removal method and the biological phosphorus removal method will be comparatively studied and a most effective and economic method of preventing eutrophication will be developed and selected. 6 references, 3 figures, 1 table.

  10. Space Science &Technology in Mauritius: Current Status and Future Opportunities

    Science.gov (United States)

    Rughooputh, S. D. D. V.; Beeharry, G. K.; Golap, K.; Issur, N. H.; Somanah, R.; Rughooputh, H. C. S.; Udayashankar, N.; Mueller, K.

    Space research (with either direct or indirect spin-offs) has been instrumental in leading to accomplishments that are meant to improve our quality of life in its broadest perspective. But are we all acquainted of the now proven-use of these findings and their capabilities? What do these mean to a remote small insular developing state like Mauritius? This paper explores the recent developments in this field in Mauritius and how we intend to optimize the use of the emerging technologies. Initiatives of the University of Mauritius are highlighted.

  11. Remote participation technologies in the EFDA Laboratories - status and prospects

    Energy Technology Data Exchange (ETDEWEB)

    Schmidt, V. [Associazione EURATOM-ENEA sulla Fusione, Consorzio RFX, Padova (Italy); How, J.A. [Association Euratom-CEA Cadarache, 13 - Saint-Paul-lez-Durance (France). Dept. de Recherches sur la Fusion Controlee

    2003-07-01

    More than 25 laboratories of the European Fusion Development Agreement (EFDA) have been increasingly using remote participation (RP) technologies for collaborative work on several experiments. We present an overview of the technologies that are employed to provide remote data access, remote computer access, and tele-conference. We also deal with computer network requirements, and support and documentation needs. The biggest application of these tools has been the joint scientific exploitation of the JET Facilities. Increasingly other experiments are operated as shared facilities, and the RP tools are being used in this context. For remote data access there is a clear trend towards MDSplus as common data access layer for multi-experiment data access. Secure Remote Computer access is converging on two different solutions. Video-conference is also converging on two partially inter-operable solutions, whereas the sharing of presentation material is converging on one solution. Remote Control Room participation is being used in two laboratories. Network monitoring has been developed and is now in routine use. The RP work is being done at many laboratories and is co-ordinated by EFDA. A number of items in several fields need still to be tackled and an overview of these is presented. (authors)

  12. Flip chip bumping technology-Status and update

    Energy Technology Data Exchange (ETDEWEB)

    Juergen Wolf, M. [Fraunhofer IZM, Gustav-Meyer-Allee 25, 13355 Berlin (Germany)]. E-mail: juergen.Wolf@izm.fraunhofer.de; Engelmann, Gunter [Fraunhofer IZM, Gustav-Meyer-Allee 25, 13355 Berlin (Germany); Dietrich, Lothar [Fraunhofer IZM, Gustav-Meyer-Allee 25, 13355 Berlin (Germany); Reichl, Herbert [Fraunhofer IZM, Gustav-Meyer-Allee 25, 13355 Berlin (Germany)

    2006-09-01

    Flip chip technology is a key driver for new complex system architectures and high-density packaging, e.g. sensor or pixel devices. Bumped wafers/dice as key elements become very important in terms of general availability at low cost, high yield and quality level. Today, different materials, e.g. Au, Ni, AuSn, SnAg, SnAgCu, SnCu, etc., are used for flip chip interconnects and different bumping approaches are available. Electroplating is the technology of choice for high-yield wafer bumping for small bump sizes and pitches. Lead-free solder bumps require an increase in knowledge in the field of under bump metallization (UBM) and the interaction of bump and substrate metallization, the formation and growth of intermetallic compounds (IMCs) during liquid- and solid-phase reactions. Results of a new bi-layer UBM of Ni-Cu which is especially designed for small-sized lead-free solder bumps will be discussed.

  13. Study on Technology Development Status of Genetically Modified Soybean Based on Patent Analysis

    Directory of Open Access Journals (Sweden)

    Miao Runlian

    2015-07-01

    Full Text Available Genetically modified soybean is a product of the emerging bio-technology in the 1980s and is widely concerned all over the world. This study analyzed GM soybean related patent documents in China, the United States and Europe, aiming to find out the R and D status and trends as well as technical distribution pattern of GM soybean in the world. It analyzed the patent general tendency, regional distribution and key technologies, clarified major countries who master such technologies, relevant companies, technologies, etc. Finally, the author put forward solutions for the strategic development of GM soybean patents.

  14. Status of Uncooled Infrared Detector Technology at ULIS, France

    Directory of Open Access Journals (Sweden)

    J.L. Tissot

    2013-12-01

    Full Text Available The high level of accumulated expertise by ULIS and CEA/LETI on uncooled microbolometers made from amorphous silicon enables ULIS to develop uncooled IRFPA with 17 µm pixel-pitch to enable the development of small power, small weight and power (SWaP and high performance IR systems. Key characteristics of amorphous silicon based uncooled IR detector is described to highlight the advantage of this technology for system operation. A full range of products from 160 x 120 to 1024 x 768 has been developed and we will focus the paper on the ¼ VGA with 17 µm pixel pitch. Readout integrated circuit (ROIC architecture is described highlighting innovations that are widely on-chip implemented to enable an easier operation by the user. The detector configuration (integration time, windowing, gain, scanning direction, is driven by a standard I²C link. Like most of the visible arrays, the detector adopts the HSYNC/VSYNC free-run mode of operation driven with only one master clock (MC supplied to the ROIC which feeds back pixel, line and frame synchronisation. On-chip PROM memory for customer operational condition storage is available for detector characteristics. Low power consumption has been taken into account and less than 60 mW is possible in analogue mode at 60 Hz. A wide electrical dynamic range (2.4V is maintained despite the use of advanced CMOS node. The specific appeal of this unit lies in the high uniformity and easy operation it provides. The reduction of the pixel-pitch turns this TEC-less ¼ VGA array into a product well adapted for high resolution and compact systems. Noise equivalent temperature difference (NETD of 35 mK and thermal time constant of 10 ms have been measured leading to 350 mK.ms figure of merit. We insist on NETD trade-off with wide thermal dynamic range, as well as the high characteristics uniformity and pixel operability, achieved thanks to the mastering of the amorphous silicon technology coupled with the ROIC design

  15. Technology status in support of refined technical baseline for the Spent Nuclear Fuel project. Revision 1

    Energy Technology Data Exchange (ETDEWEB)

    Puigh, R.J.; Toffer, H.; Heard, F.J.; Irvin, J.J.; Cooper, T.D.

    1995-10-20

    The Spent Nuclear Fuel Project (SNFP) has undertaken technology acquisition activities focused on supporting the technical basis for the removal of the N Reactor fuel from the K Basins to an interim storage facility. The purpose of these technology acquisition activities has been to identify technology issues impacting design or safety approval, to establish the strategy for obtaining the necessary information through either existing project activities, or the assignment of new work. A set of specific path options has been identified for each major action proposed for placing the N Reactor fuel into a ``stabilized`` form for interim storage as part of this refined technical basis. This report summarizes the status of technology information acquisition as it relates to key decisions impacting the selection of specific path options. The following specific categories were chosen to characterize and partition the technology information status: hydride issues and ignition, corrosion, hydrogen generation, drying and conditioning, thermal performance, criticality and materials accountability, canister/fuel particulate behavior, and MCO integrity. This report represents a preliminary assessment of the technology information supporting the SNFP. As our understanding of the N Reactor fuel performance develops the technology information supporting the SNFP will be updated and documented in later revisions to this report. Revision 1 represents the incorporation of peer review comments into the original document. The substantive evolution in our understanding of the technical status for the SNFP (except section 3) since July 1995 have not been incorporated into this revision.

  16. Heatshield for Extreme Entry Environment Technology (HEEET) Development Status

    Science.gov (United States)

    Ellerby, Don; Gage, Peter; Kazemba, Cole; Mahzari, Milad; Nishioka, Owen; Peterson, Keith; Stackpoole, Mairead; Venkatapathy, Ethiraj; Young, Zion; Poteet, Carl; Splinter, Scott; Fowler, Mike; Kellerman, Charles

    2016-01-01

    The Heat shield for Extreme Entry Environment Technology (HEEET) Project is a NASA STMD and SMD co-funded effort. The goal is to develop and mission infuse a new ablative Thermal Protection System that can withstand extreme entry. It is targeted to support NASAs high priority missions, as defined in the latest decadal survey, to destinations such as Venus and Saturn in-situ robotic science missions. Entry into these planetary atmospheres results in extreme heating. The entry peak heat-flux and associated pressure are estimated to be between one and two orders of magnitude higher than those experienced by Mars Science Laboratory or Lunar return missions. In the recent New Frontiers community announcement NASA has indicated that it is considering providing an increase to the PI managed mission cost (PIMMC) for investigations utilizing the Heat Shield for Extreme Entry Environment Technology (HEEET) and in addition, NASA is considering limiting the risk assessment to only their accommodation on the spacecraft and the mission environment. The HEEET ablative TPS utilizes 3D weaving technology to manufacture a dual layer material architecture. The 3-D weaving allows for flat panels to be woven. The dual layer consists of a top layer designed to withstand the extreme external environment while the inner or insulating layer by design, is designed to achieve low thermal conductivity, and it keeps the heat from conducting towards the structure underneath. Both arc jet testing combined with material properties have been used to develop thermal response models that allows for comparison of performance with heritage carbon phenolic. A 50 mass efficiency is achieved by the dual layer construct compared to carbon phenolic for a broad range of missions both to Saturn and Venus. The 3-D woven flat preforms are molded to achieve the shape as they are compliant and then resin infusion with curing forms a rigid panels. These panels are then bonded on to the aeroshell structure. Gaps

  17. Current Status on Stress Diagnostic Kit and Detection Technology

    Energy Technology Data Exchange (ETDEWEB)

    Park, Sang Hyun; Choi, Mi Hee; Ko, Kyong Cheol

    2008-06-15

    The accurate measurement of a stress level is one of the most important issues in a stress diagnosis and its measurement could be of great value in clinical medicine. Stress has a potent effect on the spirit and physical condition of an individual. There are various methods available for its measurement. Some of the commonly used techniques for the diagnosis of a stress level include analysis of the body fluids, questionnaire assessments, psychophysiological evaluations and by determining heart rate variability (HRV) of subjects. However, the existing diagnostic methods have several defects like, a low sensitivity, inaccuracy and long of operation time. In this report, we present a diagnostic technology to detect a stress level which is the origin of various diseases. This method can be of great help in providing an early diagnosis through a biosensor and might play a vital role in preventing diseases like hypochondria and hypertension. Majority of the human population is exposed to stress in one way or another and hence developing a convenient stress diagnosis kit will be of great use to all. This stress diagnostic kit and detection technology dose not involve simple a mechanical measurement or questionnaires, but is based on developing a detection kit with a high sensitivity, which will mean an easy use for common man. Individuals can undergo regular check ups and can personally diagnose their present situation of health by determining their stress levels, thus enabling them to diagnose the early onset of several stress disorders. This might help them take precautionary measures and thereby lead to a healthy life.

  18. Development Status of the Fission Power System Technology Demonstration Unit

    Science.gov (United States)

    Briggs, Maxwell H.; Gibson, Marc A.; Geng, Steven M.; Pearson, Jon Boise; Godfoy, Thomas

    2012-01-01

    This paper summarizes the progress that has been made in the development of the Fission Power System Technology Demonstration Unit (TDU). The reactor simulator core and Annular Linear Induction Pump have been fabricated and assembled into a test loop at the NASA Marshall Space Flight Center. A 12 kWe Power Conversion Unit (PCU) is being developed consisting of two 6 kWe free-piston Stirling engines. The two 6 kWe engines have been fabricated by Sunpower Inc. and are currently being tested separately prior to integration into the PCU. The Facility Cooling System (FCS) used to reject convertor waste heat has been assembled and tested at the NASA Glenn Research Center (GRC). The structural elements, including a Buildup Assembly Platform (BAP) and Upper Truss Structure (UTS) have been fabricated, and will be used to test cold-end components in thermal vacuum prior to TDU testing. Once all components have been fully tested at the subsystem level, they will be assembled into an end-to-end system and tested in thermal vacuum at GRC.

  19. Silver-zinc: status of technology and applications

    Science.gov (United States)

    Karpinski, A. P.; Makovetski, B.; Russell, S. J.; Serenyi, J. R.; Williams, D. C.

    Michel Yardney and Professor Henri André developed the first practical silver-zinc battery more than 55 years ago. Since then, primary and rechargeable silver-zinc batteries have attracted a variety of applications due to their high specific energy/energy density, proven reliability and safety, and the highest power output per unit weight and volume of all commercially available batteries. Although significant improvements have been achieved on traditional systems such as lead-acid and nickel/cadmium, and in spite of the advent of new electrochemistries such as lithium-ion and nickel/metal hydride, many users still rely on silver-zinc to satisfy their most demanding and critical requirements. Over the past few years, several of the internal components have been subject to many studies which resulted in significant improvements in the battery wet life and cycle life. Specifically, these include new separator materials which offer an alternative to the cellulosic membranes, improvements to the zinc electrode that include additives that help reduce shape-change and dendritic growth, and to a lesser extent, process changes to the silver electrode and additives to the electrolyte. In comparison, the commonly used secondary systems are lead-acid, nickel/cadmium, nickel/metal hydride, and lithium-ion. Each has attributes which make them desirable for certain applications. Where low cost, high voltage, and high rate capability is required, the lead-acid battery is an obvious choice whenever size and weight are not critical. For applications requiring longer wet life, moderate rate capability, and high cycle life, nickel/cadmium or nickel/metal hydride can be used in spite of their poor charge retention and higher costs. Relatively newer systems are also available such as lithium-ion or lithium polymer technology which are preferred for their high voltage and excellent cycle life. Among the disadvantages of these systems are higher costs, limited configurations (usually

  20. The Effect of Technology and Socioeconomic Status on Parental Involvement at the Elementary School Level

    Science.gov (United States)

    Balsamo, Michael J.

    2013-01-01

    Evidence suggests that parents who extensively use technology and have a high socioeconomic status (SES) may become overly involved with their elementary school-aged children's education and school-related activities, an involvement which can create a lasting dependence of the children on their parents. The literature indicates high…

  1. The Effect of Technology and Socioeconomic Status on Parental Involvement at the Elementary School Level

    Science.gov (United States)

    Balsamo, Michael J.

    2013-01-01

    Evidence suggests that parents who extensively use technology and have a high socioeconomic status (SES) may become overly involved with their elementary school-aged children's education and school-related activities, an involvement which can create a lasting dependence of the children on their parents. The literature indicates high…

  2. Technology Status and the Future of Large Deployable Antennas

    Science.gov (United States)

    Meguro, Akira; Harada, Satoshi; Ishikawa, Hironori; Tsunoda, Hiroaki; Watanabe, Mitsunobu; Mizuno, Hideki

    2002-01-01

    the number of cables in the conventional S-band antenna reflector. An equilibrium shape analysis confirms that the surface error of better than 0.4 mmRMS can be achieved. reliability in defining the difficulty index of ground deployment testing for large deployable antennas. The relationship between the index value and the accuracy of results from ground deployment testing has been estimated by deployment testing of a simple deployment truss structure under both full and micro- gravity conditions. We found that the deployment reliability of a deployable structure can not be evaluated with adequate accuracy if its size exceeds 10 m.The structure must be divided into modules ofappropriate size. Basic studies on inflatable structures and flexible patch elements for future large aperture, sophisticated direct radiation array antennas are underway. Inflatable structures, which consist of rigidized materials and flexible patch elements for feed elements, are interesting candidates. In addition to these studies, distributed sensor/actuator location, non-linear vibration control method, and optimum design methods are also being addressed. They are key technologies for high performance, highly stable, and re-configurable antenna systems.

  3. Centers for manufacturing technology: Industrial Advisory Committee Review

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-10-01

    An advisory committee, composed of senior managers form industrial- sector companies and major manufacturing trade associations and representatives from appropriate educational institutions, meets semi-annually to review and advise the Oak Ridge Centers for Manufacturing Technology (ORCMT) on its economic security program. Individual papers have been indexed separately for the database.

  4. Current Status and Future Development of Integrated Geophysical Technology in China

    Institute of Scientific and Technical Information of China (English)

    HeZhanxiang

    2003-01-01

    The gap between China''s integrated geophysical technology and the world''s advanced technologies has been significantly narrowed as the result of developments in the last decade.The new technology has played a very important role in oil and gas exploration in China, especially for the purposes of targeting seismically opaque zones, decreasing exploration risk, and improving exploration efficiency in the western territories and complex areas in China. The current status and future development of non-seismic integrated geophysical teams in China is discussed.

  5. The age of alternative energies: the current status of new energy technology development

    Energy Technology Data Exchange (ETDEWEB)

    Kawaguchi, Y.

    1986-01-01

    This paper outlines Japan's Sunshine Project and presents the current status of the principal research and development programs involved. These are as follows: 1) solar energy (solar photovoltaic power generation, solar energy systems for industrial use); 2) geothermal energy (technology for geothermal exploration and excavation, hydrothermal power generation, discovery of high-temperature rock); 3) coal energy (coal liquefaction and gasification technology); 4) hydrogen energy (technology for production, transport, storage and utilization of hydrogen); 5) others (wind power and ocean thermal power generation). 7 figs., 3 tabs.

  6. Analysis and status of post-combustion carbon dioxide capture technologies.

    Science.gov (United States)

    Bhown, Abhoyjit S; Freeman, Brice C

    2011-10-15

    The Electric Power Research Institute (EPRI) undertook a multiyear effort to understand the landscape of postcombustion CO₂ capture technologies globally. In this paper we discuss several central issues facing CO₂ capture involving scale, energy, and overall status of development. We argue that the scale of CO₂ emissions is sufficiently large to place inherent limits on the types of capture processes that could be deployed broadly. We also discuss the minimum energy usage in terms of a parasitic load on a power plant. Finally, we present summary findings of the landscape of capture technologies using an index of technology readiness levels.

  7. A status of the activities of the NASA. Marshall Space Flight Center Combustion Devices Technology Team

    Science.gov (United States)

    Tucker, Kevin

    1992-01-01

    The Consortium for Computational Fluid Dynamics (CFD) Applications in Propulsion Technology was established to focus on computational fluid dynamics applications in propulsion. Specific areas of effort include developing the CFD technology required to address rocket propulsion issues, validating the technology, and applying the validated technology to design problems. The Combustion Devices Technology Team was formed to implement the above objectives in the broad area of combustion driven flows. In an effort to bring CFD to bear in the design environment, the team has focused its efforts on the Space Transportation Main Engine nozzle. The main emphasis has been on the film cooling scheme used to cool the nozzle wall. Benchmark problems have been chosen to validate CFD film cooling capabilities. CFD simulations of the subscale nozzle have been made. Also, CFD predictions of the base flow resulting from this type of nozzle have been made. The status of these calculations is presented along with future plans. Information is given in viewgraph form.

  8. The Current Status of Usability Studies of Information Technologies in China: A Systematic Study

    OpenAIRE

    Lei, Jianbo; Xu, Lufei; Meng, Qun; Zhang, Jiajie; Gong, Yang

    2014-01-01

    Objectives. To systematically review and analyze the current status and characteristics of usability studies in China in the field of information technology in general and in the field of healthcare in particular. Methods. We performed a quantitative literature analysis in three major Chinese academic databases and one English language database using Chinese search terms equivalent to the concept of usability. Results. Six hundred forty-seven publications were selected for analysis. We found ...

  9. Current status of health technology reassessment of non-drug technologies: survey and key informant interviews

    Directory of Open Access Journals (Sweden)

    Leggett Laura E

    2012-12-01

    Full Text Available Abstract Background Health Technology Reassessment (HTR is a structured, evidence-based assessment of the clinical, social, ethical and economic effects of a technology currently used in the health care system, to inform optimal use of that technology in comparison to its alternatives. Little is known about current international HTR practices. The objective of this research was to summarize experience-based information gathered from international experts on the development, initiation and implementation of a HTR program. Methods A mixed methods approach, using a survey and in-depth interviews, was adopted. The survey covered 8 concepts: prioritization/identification of potentially obsolete technologies; program development; implementation; mitigation; program championing; stakeholder engagement; monitoring; and reinvestment. Members of Health Technology Assessment International (HTAi and the International Network of Agencies for Health Technology Assessment (INAHTA formed the sampling frame. Participation was solicited via email and the survey was administered online using SurveyMonkey. Survey results were analyzed using descriptive statistics. To gather more in-depth knowledge, semi-structured interviews were conducted among organizations with active HTR programs. Interview questions were developed using the same 8 concepts. The hour-long interviews were recorded, transcribed and analyzed using constant comparative analysis. Results Ninety-five individuals responded to the survey: 49 were not discussing HTR, 21 were beginning to discuss HTR, nine were imminently developing a program, and 16 participants had programs and were completing reassessments. The survey results revealed that methods vary widely and that although HTR is a powerful tool, it is currently not being used to its full potential. Of the 16 with active programs, nine agreed to participate in follow-up interviews. Interview participants identified early and extensive stakeholder

  10. 中间层顶区域大气平均风场年和半年振荡的全球结构%Annual and Semi-Annual Oscillations of Zonal Mean Winds in the Mesopause Region

    Institute of Scientific and Technical Information of China (English)

    凌超; 陈泽宇; 陈洪滨

    2014-01-01

    In this study the authors analyzed the global structures and inter-annual variations of the annual and semi-annual oscillations of the zonal mean winds in the mesopause region from 80 to 105 km, using nine years (2003-2011) of TIDI (TIMED Doppler Interferometer) observations. In the tropical regions, mean zonal winds dominate the semi-annual oscillation; peak amplitudes occur between 10°S and 20°S, with similar results for the semi-annual oscillation in the stratospheric zonal winds; the amplitudes of the TIDI observations are much smaller than previous results for the mesosphere using other measurement techniques. In the middle and high latitudes, zonal winds and meridional winds are dominated by annual oscillation. The annual oscillation of the zonal winds has two maximum centers in the middle and high latitudes below 100 km. The annual oscillation of the meridional winds is only found at the middle latitudes below 95 km, and the amplitude centers are distributed differently in the Northern and Southern Hemispheres. Results also show that the amplitudes of the annual and semi-annual oscillations in the zonal and meridional winds have significant inter-annual variations with nearly no change in phases. However a two-year period change, both in the amplitude and phase of the annual oscillation of the meridional winds, was found in the northern tropics.%利用2003~2011年TIDI(TIMED Doppler Interferometer)风场观测数据研究了中间层顶区域80~105 km纬向平均风场年振荡和半年振荡振幅和相位的全球分布结构,并给出了它们的年际变化。在热带地区,纬向风半年振荡最显著。振幅峰值中心位于南半球10°S~20°S 范围,出现与平流层半年振荡类似的相对于赤道不对称的分布,并且振幅峰值与以前在该区域的研究结果存在较大差别。在中高纬度地区,纬向风和经向风被年振荡所控制。纬向风在高度100 km以下中高纬度都存在振幅大值

  11. Worldwide Status of CCUS Technologies and Their Development and Challenges in China

    Directory of Open Access Journals (Sweden)

    H. J. Liu

    2017-01-01

    Full Text Available Carbon capture, utilization, and storage (CCUS is a gas injection technology that enables the storage of CO2 underground. The aims are twofold, on one hand to reduce the emissions of CO2 into the atmosphere and on the other hand to increase oil/gas/heat recovery. Different types of CCUS technologies and related engineering projects have a long history of research and operation in the USA. However, in China they have a short development period ca. 10 years. Unlike CO2 capture and CO2-EOR technologies that are already operating on a commercial scale in China, research into other CCUS technologies is still in its infancy or at the pilot-scale. This paper first reviews the status and development of the different types of CCUS technologies and related engineering projects worldwide. Then it focuses on their developments in China in the last decade. The main research projects, international cooperation, and pilot-scale engineering projects in China are summarized and compared. Finally, the paper examines the challenges and prospects to be experienced through the industrialization of CCUS engineering projects in China. It can be concluded that the CCUS technologies have still large potential in China. It can only be unlocked by overcoming the technical and social challenges.

  12. Mobile Technology, Cancer Prevention, and Health Status among Diverse, Low-Income Adults

    Science.gov (United States)

    Purnell, Jason Q.; Griffith, Julia; Eddens, Katherine S.; Kreuter, Matthew W.

    2014-01-01

    Purpose Characterize mobile technology ownership, use, and relationship to self-reported cancer prevention behaviors and health status in a diverse, low-income sample of callers to 2-1-1. Design Secondary analyses of cross-sectional survey data from a larger trial collected from June 2010 to December 2012. Setting United Way Missouri 2-1-1 serves 99 of 114 counties and received 166,000 calls in 2011. Subjects The respondents (baseline n = 1,898; 4-month n = 1,242) were predominantly female, non-Hispanic Black, under 50, with ≤ high school education and annual income < $20,000. Measures Cell phone ownership and use and its relationship to cancer prevention services and health status were assessed via telephone-based survey using items adapted from previous research and the BRFSS. Smartphone ownership and use were also assessed. Analysis Descriptive statistics and bivariate and multivariate associations between cell phone ownership and prevention and health status are reported. Results Three-fourths (74%) of study participants owned a cell phone and 19% owned a smartphone. Text messaging was the most popular use. Ownership was significantly associated with good to excellent health status and presence of smoke-free home policies in multivariate models. Conclusion Cell phone ownership is growing and has potential to deliver health information to low-income populations. With 16 million calls annually, the national 2-1-1 system may be a promising model and platform. PMID:24200336

  13. Current status of technology development for fabrication of Indian Test Blanket Module (TBM) of ITER

    Energy Technology Data Exchange (ETDEWEB)

    Jayakumar, T., E-mail: tjk@igcar.gov.in [Metallurgy and Materials Group, Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam 603102 (India); Rajendra Kumar, E. [TBM Division, Institute for Plasma Research (IPR), Bhat, Gandhinagar 382428 (India)

    2014-10-15

    Highlights: • Status of technology developments for Indian TBM to be installed in ITER is presented. • Procedure development for EB, laser and laser-hybrid welding of RAFM steel presented. • Filler wires for RAFM steel for TIG, NG-TIG and laser-hybrid welding have been developed. • Feasibility of production of channel plate by HIP technology has been demonstrated. - Abstract: Ever since India decided to install its Lead-Lithium Ceramic Breeder (LLCB) TBM in ITER, various technologies for fabrication of Indian TBM are being pursued by IPR and IGCAR, in collaboration with various research laboratories in India. Welding consumables for joining India specific RAFM steels (IN-RAFMS), procedures for hot isostatic pressing, electron beam welding, laser and laser-hybrid welding have been developed. Considering the complex nature and limited access available for inspection, innovative inspection procedures that involved use of phased array ultrasonic and C-scan imaging are also being pursued. This paper presents the current status of these developments and provides a roadmap for the future activities planned in realizing Indian TBM for testing in ITER.

  14. Status of Solar Generator Related Technology Development Activities Supporting the Juice Mission

    Directory of Open Access Journals (Sweden)

    Baur Carsten

    2017-01-01

    Full Text Available The paper provides an overview of the current status of several technical development activities initiated by the European Space Agency (ESA to support the JUICE mission to the Jovian system. First of all, the qualification status of the solar cells to be used in the JUICE mission will be reported. Then, the conclusions from a dedicated activity aiming at assessing the potential degradation of triple-junction solar cells upon primary discharges will be discussed. Finally, the results on the coupon tests currently running at ESA will be presented. The coupons consist of representative solar cell assemblies including coverglasses with a conductive Indium Tin Oxide (ITO layer. Dedicated coverglass grounding technologies are tested on the coupons which connect the conductive coverglass surfaces to the panel ground. It will be shown how the resistivity of the materials used in the coupons evolves upon submission to extreme thermal cycles.

  15. Autonomous Precision Landing and Hazard Avoidance Technology (ALHAT) Project Status as of May 2010

    Science.gov (United States)

    Striepe, Scott A.; Epp, Chirold D.; Robertson, Edward A.

    2010-01-01

    This paper includes the current status of NASA s Autonomous precision Landing and Hazard Avoidance Technology (ALHAT) Project. The ALHAT team has completed several flight tests and two major design analysis cycles. These tests and analyses examine terrain relative navigation sensors, hazard detection and avoidance sensors and algorithms, and hazard relative navigation algorithms, and the guidance and navigation system using these ALHAT functions. The next flight test is scheduled for July 2010. The paper contains results from completed flight tests and analysis cycles. ALHAT system status, upcoming tests and analyses is also addressed. The current ALHAT plans as of May 2010 are discussed. Application of the ALHAT system to landing on bodies other than the Moon is included

  16. Status quo and prospects of fishing technology of ocean fishery of China

    Institute of Scientific and Technical Information of China (English)

    LIN De-fang; GUAN Chang-tao; HUANG Wen-qiang

    2004-01-01

    报道了我国大洋渔业技术现状,评述了技术水平、发展趋势,分析渔业技术存在的问题,提出了大洋渔业可持续发展应当进行的研究课题及建议.%This paper reports the status quo of fishing technologies of ocean fishery of China, comments on technique level and development trend and the problems existed in fishing techniques. Furthermore the paper also puts forward some suggestions and research projects to make sustainable development of ocean fishery.

  17. The Development Status and Key Technologies of Solar Powered Unmanned Air Vehicle

    Science.gov (United States)

    Sai, Li; Wei, Zhou; Xueren, Wang

    2017-03-01

    By analyzing the development status of several typical solar powered unmanned aerial vehicles (UAV) at home and abroad, the key technologies involved in the design and manufacture of solar powered UAV and the technical difficulties need to be solved at present are obtained. It is pointed out that with the improvement of energy system efficiency, advanced aerodynamic configuration design, realization of high applicability flight stability and control system, breakthrough of efficient propulsion system, the application prospect of solar powered UAV will be more extensive.

  18. Status and prospect of NDT technology for nuclear energy industry in Korea

    Science.gov (United States)

    Lee, Joon Hyun

    2016-02-01

    Innovative energy technology is considered to be one of the key solutions for meeting the challenges of climate change and energy security, which is why global leaders are focusing on enhancing energy technology R&D. In accordance with the global movements to accelerate energy R&D, the Korean government has made significant investments in a broad spectrum of energy R&D programs, including energy efficiency, resources, CCS, new and renewable energy, power generation and electricity delivery, nuclear power and nuclear waste management. In order to manage government sponsored energy R&D programs in an efficient and effective way, the government established the Korea Institute of Energy technology Evaluation and Planning (KETEP) in 2009. Main activities of KETEP include developing energy technology roadmaps, planning, evaluating, and managing R&D programs, fostering experts in the field of energy, promoting international cooperation programs, gathering and analyzing energy statistics, and supporting infrastructure and commercialization. KETEP assists the Ministry of Trade, Industry and Energy in developing national R&D strategies while also working with researchers, universities, national institutes and the private sector for their successful energy technology and deployment. This presentation consists of three parts. First, I will introduce the characteristics of energy trends and mix in Korea. Then, I'll speak about the related national R&D strategies of energy technology. Finally, I'll finish up with the status and prospect of NDT technology for nuclear energy industry in Korea. The development of the on-line structural integrity monitoring systems and the related techniques in Korean nuclear power plant for the purpose of condition based maintenance is introduced. The needs of NDT techniques for inspection and condition monitoring for GEN IV including SFR, small module reactor etc., are also discussed.

  19. Status of combustion-modification technology for utility-boiler NO/sub x/ control

    Energy Technology Data Exchange (ETDEWEB)

    1978-12-01

    This report documents significant developments in the subject area of combustion modifications as applied to coal-fired utility boilers. The primary emphasis is on the status of NO/sub x/ control technology, but related topics, such as boiler corrosion and hazardous emissions during modified-combustion operation, are also discussed. This report is intended as a complement to the 1977 Assessment of NO/sub x/ Control Technology for Coal-Fired Utility Boilers (ANL/ECT-3, Appendix D). A synopsis of recent NO/sub x/ field-test programs undertaken by the U.S. Environmental Protection Agency (EPA) and the Electric Power Research Institute (EPRI) is presented along with a status report on the major boiler manufacturers' low-NO/sub x/ burner/boiler development efforts. Because of concerns that low-NO/sub x/ operating modes may increase boiler-tubewall corrosion and increase polycyclic-organic-matter (POM) and SO/sub 3/ emissions, discussions of recent test programs and analytical studies on these topics are also included.

  20. Recycling of waste printed circuit boards: a review of current technologies and treatment status in China.

    Science.gov (United States)

    Huang, Kui; Guo, Jie; Xu, Zhenming

    2009-05-30

    From the use of renewable resources and environmental protection viewpoints, recycling of waste printed circuit boards (PCBs) receives wide concerns as the amounts of scrap PCBs increases dramatically. However, treatment for waste PCBs is a challenge due to the fact that PCBs are diverse and complex in terms of materials and components makeup as well as the original equipment's manufacturing processes. Recycle technology for waste PCBs in China is still immature. Previous studies focused on metals recovery, but resource utilization for nonmetals and further separation of the mixed metals are relatively fewer. Therefore, it is urgent to develop a proper recycle technology for waste PCBs. In this paper, current status of waste PCBs treatment in China was introduced, and several recycle technologies were analyzed. Some advices against the existing problems during recycling process were presented. Based on circular economy concept in China and complete recycling and resource utilization for all materials, a new environmental-friendly integrated recycling process with no pollution and high efficiency for waste PCBs was provided and discussed in detail.

  1. [Surveying the status of continuous blood purification technology application in Chinese pediatric intensive care unit].

    Science.gov (United States)

    Li, Leilei; Lu, Guoping

    2014-03-01

    To learn application status of continuous blood purification (CBP) in pediatric intensive care unit (PICU), to provide reference to promote the development of CBP technology. The survey of CBP application was conducted using questionnaire in 40 hospitals providing intensive care, which included children's hospitals and the pediatric sections of general hospitals from 28 provinces/municipalities/autonomous regions in China during March to July of 2012. Totally 38 hospital replied, 25 hospitals carried out CBP technology, first carried out in 1997, the median year was 2008, 21 hospitals' PICU could independently carry out CBP device, 18 hospitals had the nurses who could professionally operate, routinely maintain the device. Continuous veno-venous hemodiafiltration was the largest implementation mode of CBP, accounting for 51.9%. Twenty-three hospitals used ordinary heparin, and 2 hospitals used low molecular weight heparin; 21 hospitals chose activated partial thromboplastin time as the coagulation testing, due to lack of equipment, only four hospitals chose activated clotting time as coagulation testing. Only 3 hospitals could apply before and after dilution joint technology. Kidney failure is still the disease accounting for the highest proportion of diseases requiring CBP application, accounting for 38.1%, followed by sepsis, 19.1%, drug poisoning 16.7%. CBP started 10 years ago, and got attention and promotion nearly five years ago in China, but the associated personnel, equipment were inadequate, anticoagulation, before and after dilution and other technical applications were not complete enough, high volume hemofiltration mode was seldom used.

  2. Review of production status of heavy steel castings and key technologies for their manufacture in China

    Institute of Scientific and Technical Information of China (English)

    Kang Jinwu; Huang Tianyou; Liu Baicheng

    2008-01-01

    This paper expatiates on domestic status of heavy steel casting production, with a special focus on hydraulic turbine castings for Three Gorges Project. In China, there is magnificent demand for heavy castings with the rapid growth of the national economy in recent years and the expected high growth in the coming 10 to 20 years. Some heavy and large castings such as mill housing and hydraulic turbine runner crown, blade and band for Three Gorges Project have been successfully made. However, the domestic production capability is still far from meeting the gigantic requirements. The domestic capability still lags behind the world class level, and a lot of heavy castings still depend on import. The paper also gives a particular introduction of the key technologies in the manufacturing of heavy steel castings like metal melting, foundry technology, heat treatment technology and numerical simulation technique, etc.In addition, several case studies on the application of numerical simulation in the production of heavy steel castings are presented.

  3. Review of production status of heavy steel castings and key technologies for their manufacture in China

    Directory of Open Access Journals (Sweden)

    Liu Baicheng

    2008-02-01

    Full Text Available This paper expatiates on domestic status of heavy steel casting production, with a special focus on hydraulic turbine castings for Three Gorges Project. In China, there is magnificent demand for heavy castings with the rapid growth of the national economy in recent years and the expected high growth in the coming 10 to 20 years. Some heavy and large castings such as mill housing and hydraulic turbine runner crown, blade and band for Three Gorges Project have been successfully made. However, the domestic production capability is still far from meeting the gigantic requirements. The domestic capability still lags behind the world class level, and a lot of heavy castings still depend on import. The paper also gives a particular introduction of the key technologies in the manufacturing of heavy steel castings like metal melting, foundry technology, heat treatment technology and numerical simulation technique, etc. In addition, several case studies on the application of numerical simulation in the production of heavy steel castings are presented.

  4. Status of the technologies for the production of the Cherenkov Telescope Array (CTA) mirrors

    CERN Document Server

    Pareschi, G; Baba, H; Bähr, J; Bonardi, A; Bonnoli, G; Brun, P; Canestrari, R; Chadwick, P; Chikawa, M; Carton, P -H; de Souza, V; Dipold, J; Doro, M; Durand, D; Dyrda, M; Förster, A; Garczarczyk, M; Giro, E; Glicenstein, J -F; Hanabata, Y; Hayashida, M; Hrabovski, M; Jeanney, C; Kagaya, M; Katagiri, H; Lessio, L; Mandat, D; Mariotti, M; Medina, C; Michałowski, J; Micolon, P; Nakajima, D; Niemiec, J; Nozato, A; Palatka, M; Pech, M; Peyaud, B; Pühlhofer, G; Rataj, M; Rodeghiero, G; Rojas, G; Rousselle, J; Sakonaka, R; Schovanek, P; Seweryn, K; Schultz, C; Shu, S; Stinzing, F; Stodulski, M; Teshima, M; Travniczek, P; van Eldik, C; Vassiliev, V; Wiśniewski, Ł; Wörnlein, A; Yoshida, T

    2013-01-01

    The Cherenkov Telescope Array (CTA) is the next generation very high-energy gamma-ray observatory, with at least 10 times higher sensitivity than current instruments. CTA will comprise several tens of Imaging Atmospheric Cherenkov Telescopes (IACTs) operated in array-mode and divided into three size classes: large, medium and small telescopes. The total reflective surface could be up to 10,000 m2 requiring unprecedented technological efforts. The properties of the reflector directly influence the telescope performance and thus constitute a fundamental ingredient to improve and maintain the sensitivity. The R&D status of lightweight, reliable and cost-effective mirror facets for the CTA telescope reflectors for the different classes of telescopes is reviewed in this paper.

  5. VRdose: an exposure dose evaluation system based on virtual reality technology - current status and future possibilities

    Energy Technology Data Exchange (ETDEWEB)

    Iguchi, Yukihiro; Louka, Michael; Johnsen, Terje

    2004-07-01

    The Fugen Nuclear Power Station (NPS) was shut down permanently in March 2003, and preparatory activities are underway to decommission the Fugen NPS. It is necessary to accomplish the decommissioning economically and rationally by optimizing the workload, exposure dose and waste mass. This is important at the planning stage of the decommissioning. Virtual reality (VR) technology may prove beneficial to this process with regard to minimizing the workers' radiation exposure as well as contributing towards achieving efficient use of manpower. It could also be a valuable tool in the actual dismantling phase. In addition to this, VR provides an effective medium in presentations for public acceptance as well as for communication with relevant engineers. The VRdose project conducted by Japan Nuclear Cycle Development Institute (JNC) and Halden Virtual Reality Centre is doing research and development of VR technology for use in the decommissioning process at the Fugen NPS. This is technically an extensive project, touching on many of the present challenges in the VR area such as visual simulation and animation, interaction with objects in a virtual environment and scenario generation and optimisation. This paper describes the present status and future of the system. (Author)

  6. The current status of usability studies of information technologies in China: a systematic study.

    Science.gov (United States)

    Lei, Jianbo; Xu, Lufei; Meng, Qun; Zhang, Jiajie; Gong, Yang

    2014-01-01

    To systematically review and analyze the current status and characteristics of usability studies in China in the field of information technology in general and in the field of healthcare in particular. We performed a quantitative literature analysis in three major Chinese academic databases and one English language database using Chinese search terms equivalent to the concept of usability. Six hundred forty-seven publications were selected for analysis. We found that in China the literature on usability in the field of information technology began in 1994 and increased thereafter. The usability definitions from ISO 9241-11:1998 and Nielsen (1993) have been widely recognized and cited. Authors who have published several publications are rare. Fourteen journals have a publishing rate over 1%. Only nine publications about HIT were identified. China's usability research started relatively late. There is a lack of organized research teams and dedicated usability journals. High-impact theoretical studies are scarce. On the application side, no original and systematic research frameworks have been developed. The understanding and definition of usability is not well synchronized with international norms. Besides, usability research in HIT is rare. More human and material resources need to be invested in China's usability research, particularly in HIT.

  7. The Current Status of Usability Studies of Information Technologies in China: A Systematic Study

    Directory of Open Access Journals (Sweden)

    Jianbo Lei

    2014-01-01

    Full Text Available Objectives. To systematically review and analyze the current status and characteristics of usability studies in China in the field of information technology in general and in the field of healthcare in particular. Methods. We performed a quantitative literature analysis in three major Chinese academic databases and one English language database using Chinese search terms equivalent to the concept of usability. Results. Six hundred forty-seven publications were selected for analysis. We found that in China the literature on usability in the field of information technology began in 1994 and increased thereafter. The usability definitions from ISO 9241-11:1998 and Nielsen (1993 have been widely recognized and cited. Authors who have published several publications are rare. Fourteen journals have a publishing rate over 1%. Only nine publications about HIT were identified. Discussions. China’s usability research started relatively late. There is a lack of organized research teams and dedicated usability journals. High-impact theoretical studies are scarce. On the application side, no original and systematic research frameworks have been developed. The understanding and definition of usability is not well synchronized with international norms. Besides, usability research in HIT is rare. Conclusions. More human and material resources need to be invested in China’s usability research, particularly in HIT.

  8. Clean Cities Now, Vol. 20, No. 2, Winter 2017 - Capitalizing on Core Strengths & New Technologies for Today's Mobility Systems

    Energy Technology Data Exchange (ETDEWEB)

    2017-01-01

    Clean Cities Now is the official semi-annual newsletter of Clean Cities, an initiative designed to reduce petroleum consumption in the transportation sector by advancing the use of alternative and renewable fuels, fuel economy improvements, idle-reduction measures, and new technologies, as they emerge.

  9. Project SQUID - Semi-Annual Progress Report

    Science.gov (United States)

    1947-01-01

    scale attached to the front suppoit but, since preliminary c ale illations indicated it was not needed, no damping mil nanism was installed. (d) The...report obtainable from CAPO. DIVISION: Rower Plants . Jet and Turbine W) SECTION: gexXopmance {16> ’^ ’ ATI SHEET NO.: Central Air Docvmonta

  10. Status of teaching elementary science for English learners in science, mathematics and technology centered magnet schools

    Science.gov (United States)

    Han, Alyson Kim

    According to the California Commission on Teacher Credentialing (2001), one in three students speaks a language other than English. Additionally, the Commission stated that a student is considered to be an English learner if the second language acquisition is English. In California more than 1.4 million English learners enter school speaking a variety of languages, and this number continues to rise. There is an imminent need to promote instructional strategies that support this group of diverse learners. Although this was not a California study, the results derived from the nationwide participants' responses provided a congruent assessment of the basic need to provide effective science teaching strategies to all English learners. The purpose of this study was to examine the status of elementary science teaching practices used with English learners in kindergarten through fifth grade in public mathematics, science, and technology-centered elementary magnet schools throughout the country. This descriptive research was designed to provide current information and to identify trends in the areas of curriculum and instruction for English learners in science themed magnet schools. This report described the status of elementary (grades K-5) school science instruction for English learners based on the responses of 116 elementary school teachers: 59 grade K-2, and 57 grade 3-5 teachers. Current research-based approaches support incorporating self-directed learning strategy, expository teaching strategy, active listening strategies, questioning strategies, wait time strategy, small group strategy, peer tutoring strategy, large group learning strategy, demonstrations strategy, formal debates strategy, review sessions strategy, mediated conversation strategy, cooperative learning strategy, and theme-based instruction into the curriculum to assist English learners in science education. Science Technology Society (STS) strategy, problem-based learning strategy, discovery learning

  11. Phase Change Materials: Technology Status and Potential Defence Applications (Review Papers

    Directory of Open Access Journals (Sweden)

    Ravindra Kumar

    2011-10-01

    Full Text Available Phase change materials (PCM are being utilised world over for energy storage and temperature smoothening applications. Defence Laboratory Jodhpur (DLJ has initiated a R&D programme to apply PCM in solving many heat related problems being faced by Indian forces during desert operations specially failure of mission-critical components. Under the programme, special organic PCM (Patent application no. 2258/DEL/2007 and low melting metal alloys have been developed well tuned to desert diurnal cycle. The PCM panels, when applied as an internal lining in buildings, structures and vehicles can moderate the extreme temperature within human tolerable range (below 40 °C without the use of any external power for cooling. The panels can also act as power saver in air conditioned buildings. A cool vest has also been developed with chargeable PCM packs to provide comfortable microenvironment to a soldier on field duty (below 30 °C for 2-3 hrs. To improve reliability of mission critical electronic instruments during desert operation, technology of absorptive PCM heat sinks is under development at DLJ. The special heat sink will absorb heat generated by component for critical mission (up to 1 hr independent of environment temperature and thus ensure smooth functioning of critical components even in extreme hot conditions. In present paper status of PCM technology world over has been reviewed along with the brief account of research on PCM at DLJ.Defence Science Journal, 2011, 61(6, pp.576-582, DOI:http://dx.doi.org/10.14429/dsj.61.363

  12. Status of an advanced radioisotope space power system using free-piston Stirling technology

    Energy Technology Data Exchange (ETDEWEB)

    White, M.A,; Qiu, S.; Erbeznik, R.M.; Olan, R.W.; Welty, S.C.

    1998-07-01

    This paper describes a free-piston Stirling engine technology project to demonstrate a high efficiency power system capable of being further developed for deep space missions using a radioisotope (RI) heat source. The key objective is to develop a power system with an efficiency exceeding 20% that can function with a high degree of reliability for 10 years or longer on deep space missions. Primary issues being addressed for Stirling space power systems are weight and the vibration associated with reciprocating pistons. Similar weight and vibration issues have been successfully addressed with Stirling cryocoolers, which are the accepted standard for cryogenic cooling in space. Integrated long-life Stirling engine-generator (or convertor) operation has been demonstrated by the terrestrial Radioisotope Stirling Generator (RSG) and other Stirling Technology Company (STC) programs. Extensive RSG endurance testing includes more than 40,000 maintenance-free, degradation-free hours for the complete convertor, in addition to several critical component and subsystem endurance tests. The Stirling space power convertor project is being conducted by STC under DOE Contract, and NASA SBIR Phase II contracts. The DOE contract objective is to demonstrate a two-convertor module that represents half of a nominal 150-W(e) power system. Each convertor is referred to as a Technology Demonstration Convertor (TDC). The ultimate Stirling power system would be fueled by three general purpose heat source (GPHS) modules, and is projected to produce substantially more electric power than the 150-watt target. The system is capable of full power output with one failed convertor. One NASA contract, nearing completion, uses existing 350-W(e) RG-350 convertors to evaluate interactivity of two back-to-back balanced convertors with various degrees of electrical and mechanical interaction. This effort has recently provided the first successful synchronization of two convertors by means of parallel

  13. European accomplishments in regulation of the family status of the child conceived by artificial reproduction technologies

    Directory of Open Access Journals (Sweden)

    Kovaček-Stanić Gordana

    2015-01-01

    Full Text Available In this paper, the author analyzes family status of the child conceived by artificial reproduction technologies using the following treatments: homologues artificial insemination, heterologus artificial insemination (artificial insemination by donor, ovum donation, embryo donation and surrogate motherhood. One specific situation of homologues artificial insemination is posthumous insemination, insemination after the death of the husband/partner. This procedure is allowed in, for instance, United Kingdom, but not allowed in France, Switzerland, and Italy. Considering genetics elements in this situation there is no doubt on fatherhood - father is a man whose sperm is used for insemination, regardless of the fact if frozen sperm or frozen embryo is used in the procedure. Nevertheless, until 2008 in United Kingdom, the husband/partner was not considered as legal father, because of the fact that the child was born after his death. Heterologous artificial insemination could be used in three different situations. First, when subjects are spouses or unmarried partners of different sexes. Second, when subjects are spouses or unmarried partners of the same sex and the third if a single woman is an only subject. Most recent procedure is the one in which subjects are spouses or unmarried partners of the same sex, specifically two women. This procedure is allowed in the United Kingdom and Sweden. In these legislatures, there is a rule that the woman who delivers the child is legal mother, and her spouse/partner is a second parent of the child. The most recent procedure of egg donation is a donation of only a part of an egg, mitochondrial DNA. In this case, there are in fact three genetic parents of the child: two genetic mothers and a father. Legally, the child has one mother (the woman who delivers a child and a father. One of potential outcomes of the recent research is the ability to create human embryo without any male genetic contribution - by

  14. CHARACTERISTICS OF LIFE STYLE AND HEALTH-STATUS OF MALE STUDENTS AT A NATIONAL COLLEGE OF TECHNOLOGY

    OpenAIRE

    池本, 幸雄; 出村, 慎一; 長澤, 吉則; 山次, 俊介; 島田, 茂; 南, 雅樹

    2003-01-01

    The purpose of this study was to examine characteristics of life style and health-status of male students at a National College of Technology. A questionnaire consisting of 75 items on life style and health-status was administered to 581 healthy male students aged 15 to 20 years. The frequencies and proportions for each item were computed, and the proportion-differences were examined using one-way analysis of variance. Quite a few students have some exercise habit, and they exercise more than...

  15. The status of lightweight photovoltaic space array technology based on amorphous silicon solar cells

    Science.gov (United States)

    Hanak, Joseph J.; Kaschmitter, Jim

    1991-01-01

    Ultralight, flexible photovoltaic (PV) array of amorphous silicon (a-Si) was identified as a potential low cost power source for small satellites. A survey was conducted of the status of the a-Si PV array technology with respect to present and future performance, availability, cost, and risks. For existing, experimental array blankets made of commercial cell material, utilizing metal foil substrates, the Beginning of Life (BOL) performance at Air Mass Zero (AM0) and 35 C includes total power up to 200 W, power per area of 64 W/sq m and power per weight of 258 W/kg. Doubling of power per weight occurs when polyimide substrates are used. Estimated End of Life (EOL) power output after 10 years in a nominal low earth orbit would be 80 pct. of BOL, the degradation being due to largely light induced effects (-10 to -15 pct.) and in part (-5 pct.) to space radiation. Predictions for the year 1995 for flexible PV arrays, made on the basis of published results for rigid a-Si modules, indicate EOL power output per area and per weight of 105 W/sq m and 400 W/kg, respectively, while predictions for the late 1990s based on existing U.S. national PV program goals indicate EOL values of 157 W/sq m and 600 W/kg. Cost estimates by vendors for 200 W ultralight arrays in volume of over 1000 units range from $100/watt to $125/watt. Identified risks include the lack of flexible, space compatible encapsulant, the lack of space qualification effort, recent partial or full acquisitions of US manufacturers of a-Si cells by foreign firms, and the absence of a national commitment for a long range development program toward developing of this important power source for space.

  16. A review on the current status and production technology of {sup 32,} {sup 33}P-orthophosphoric acid

    Energy Technology Data Exchange (ETDEWEB)

    Park, Ul Jae; Han, Hyun Soo; Cho, Woon Kap; Kuznetsov, Rostislav A

    2000-10-01

    The current status of {sup 32}, {sup 33}P-Orthophosphoric acid production technology is reviewed. The following aspects of the technology are covered: - production of phosphorus-32 and phosphorus-33 using various nuclear reactions; - chemical properties of sulfur and phosphorus effecting the technology of radioactive phosphorus production; - chemical state of {sup 32}, {sup 33}P in neutron irradiated sulfur; - the technology of radioactive phosphorus isolation from neutron irradiated target and orthophosphoric acid production; - purification of {sup 32}, {sup 33}P-orthophosphoric acid from impurities and some related problems, like the nature of impurities, the storage of the final product, etc. - the quality control procedures of carrier-free ({sup 32}, {sup 33}P)-orthophosphoric acid preparations.

  17. National Advanced Drilling and Excavation Technologies Institute. Status report, March 1997

    Energy Technology Data Exchange (ETDEWEB)

    Peterson, C.

    1997-12-31

    The National Advanced Drilling and Excavation Technologies (NADET) program is intended to pool support, talent, and technologies of the industries dependent upon drilling and excavation technologies to initiate, coordinate, and sustain programs capable of developing substantial technological advances. The NADET Institute has been funded by the DOE Office of Geothermal Technologies and is now supporting seven projects aimed at advanced geothermal drilling technologies. The Institute seeks to broaden its base of funding and technological support from both government and industry sources. Encouraging progress has been made with the support of dues-paying industrial members and industrial sponsorship of a substantial drilling research study.

  18. The Status of Technology and Engineering Education in the United States: A Fourth Report of the Findings from the States (2011-12)

    Science.gov (United States)

    Moye, Johnny J.; Dugger, William E., Jr.; Starkweather, Kendall N.

    2012-01-01

    Technology and engineering education continues to evolve as it becomes more apparent that students need this information to become more successful in college and careers. The International Technology and Engineering Educators Association (ITEEA ) has tracked the status of technology education in the United States in three separate studies over the…

  19. Adoption of precision agriculture technologies in India and in some developing countries: Scope, present status and strategies

    Institute of Scientific and Technical Information of China (English)

    Pinaki Mondal; Manisha Basu

    2009-01-01

    Rapid socio-economic changes in some developing countries, including India, are creating new scopes for application of precision agriculture (PA). The implications of dramatic shifts for economic development, urbanization and energy consumption in some devel-oping countries are immense. High-tech nature of traditional PA technologies developed in advanced countries created a real challenge for engineers to search suitable PA technologies for developing countries. It is expected that application of balanced soft and hard PA technologies based on the need of specific socio-economic condition of a country will make PA suitable for developing countries also. 'Soft' PA depends mainly on visual observation of crop and soil and management decision based on experience and intuition, rather than on statistical and scientific analysis. 'Hard' PA utilizes all modern technologies such as GPS, RS, and VRT. Three components, namely, 'single PA technology', 'PA technology package' (for the user to select one or combination) and 'integrated PA technology', have been identified as a part of adoption strategies of PA in the developing countries. Therefore, the objective of this paper is to find out the scope, the present status and the strategies for adoption of PA in India and in some developing countries. Application of PA in cash crop, plan-tation crop, etc. has been discussed. Application of some medium and low-tech PA tools such as chlorophyll meter and leaf colour chart. in small farms has been included. This exhaustive review of the present status of PA in India and in some developing countries is expected to help to find out the adoption trend and direction of future research. Detailed strategy for the adoption of PA in India has also been proposed.

  20. Environmental control implications of generating electric power from coal. Appendix B. Assessment of status of technology for solvent refining of coal. 1977 technology status report

    Energy Technology Data Exchange (ETDEWEB)

    None

    1977-12-01

    This report reviews the technology and environmental impacts of the solvent refined coal process to produce clean solid fuel (SRC-I). Information on SRC-I pilot plant operation, process design, and economics is presented. A bibliography of current available literature in this technology area, divided into fourteen categories with abstracts of the references, is appended. The history, current operations, and future plans for the SRC pilot plants at Fort Lewis and Wilsonville are reviewed. Process data generated at these pilot plants for various coals are used as a basis for a conceptual commercial plant design with a capacity to process 20,000 tons per day (TPD) of prepared coal. Block flow diagrams, material balances, an energy balance, and a list of raw materials for the plant are also provided. Capital cost estimates for a 20,000 TPD coal feed plant derived from four prior economic studies range from $706 million to $1093 million in 1976 dollars. The annual net operating cost is estimated at $238.6 million (1976 dollars) and the average product cost at $2.71/MM Btu based on utility financing (equity 25:debt 75) with $25/ton as the delivered price of the dry coal. The report also discusses special technical considerations associated with some of the process operations and major equipment items and enumerates technical risks associated with the commercialization of the SRC-I process.

  1. Current status of radon and radium monitoring at the Federal University of Technology (UTFPR), PR, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Paschuk, Sergei A.; Correa, Janine N.; Kappke, Jaqueline; Schelin, Hugo R.; Denyak, Valeriy; Barbosa, Laercio; Perna, Allan F.N. [Universidade Tecnologica Federal do Parana (UTFPR), Curitiba, PR (Brazil)

    2011-07-01

    Numerous and systematic studies performed in different countries for many decades resulted in the explicit conclusion that radon exposure, as well as its progeny, is the main cause of lung cancer among non-smokers. All three natural radon isotopes ({sup 222}Rn, {sup 220}Rn and {sup 219}Rn) are produced in the three principal natural radioactive decay chains. Specifically, the {sup 222}Rn is produced by the decay series of {sup 238}U and proceeded from {alpha}-decay of {sup 226}Ra. Current work describes the present status and obtained results concerning indoor radon survey in dwellings, radon in water supply and soil gas tests performed by the Laboratory of Applied Nuclear Physics of the Federal University of Technology (UTFPR) within Curitiba urban area. For radon in air activity measurements, it was used polycarbonate etched track detectors such as LEXAN (GE) and CR-39, mounted in diffusion chambers. For soil gas measurements, the experimental setup was based on the Professional Radon Monitor (AlphaGUARD, Genitron/SAPHYMO) connected to the air pump with filter vessels and to specially developed in our Laboratory the Soil Gas Probe. In the case of radon tests in drinking water, the experimental setup was based on the AlphaGUARD Radon monitor and Electronic radon detector RAD7 (Durridge Company, Inc.) connected to special kit of glass vessels through the air pump. Obtained results permitted to identify few dwellings where radon concentration in air was found bigger than 600 Bq/m{sup 3} which is considered as the action level by most of the European Community and the World Health Organization (WHO). In the case of studied artesian wells, collected samples of water presented the average {sup 222}Rn activity about 60 Bq/L which is 6 times bigger than maximum level recommended by USEPA. Some artesian wells presented the radon activity of almost 200 Bq/L. More over, it was identified the radioactivity of radium ({sup 226}Ra) salts which are soluble in water and almost

  2. The Status of Technology-Enhanced Education and Service Delivery in Rehabilitation Counselor Education

    Science.gov (United States)

    Oswald, Gina R.; Huber, Mary J.; Wilson, Josephine F.; Embree, Jared

    2015-01-01

    Purpose: The purpose of this article is to discuss the upsurge of technology-enhanced rehabilitation education programs and telerehabilitation services, to provide examples of these advancements, and to discuss the implications of this technology for education and the field including the unique advantage to developing technological skills through…

  3. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program FY-98 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Herbst, Alan Keith; Mc Cray, John Alan; Rogers, Adam Zachary; Simmons, R. F.; Palethorpe, S. J.

    1999-03-01

    The Low-Activity Waste Process Technology Program at the Idaho Nuclear Technology and Engineering Center (INTEC) anticipates that large volumes of low-level/low-activity wastes will need to be grouted prior to near-surface disposal. During fiscal year 1998, three grout formulations were studied for low-activity wastes derived from INTEC liquid sodium-bearing waste. Compressive strength and leach results are presented for phosphate bonding cement, acidic grout, and alkaline grout formulations. In an additional study, grout formulations are recommended for stabilization of the INTEC underground storage tank residual heels.

  4. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program, FY-98 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Herbst, A.K.; Rogers, A.Z.; McCray, J.A.; Simmons, R.F.; Palethorpe, S.J.

    1999-03-01

    The Low-Activity Waste Process Technology Program at the Idaho Nuclear Technology and Engineering Center (INTEC) anticipates that large volumes of low-level/low-activity wastes will need to be grouted prior to near-surface disposal. During fiscal year 1998, three grout formulations were studied for low-activity wastes derived from INTEC liquid sodium-bearing waste. Compressive strength and leach results are presented for phosphate bonding cement, acidic grout, and alkaline grout formulations. In an additional study, grout formulations are recommended for stabilization of the INTEC underground storage tank residual heels.

  5. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program FY-99 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Herbst, Alan Keith; Mc Cray, John Alan; Kirkham, Robert John; Pao, Jenn Hai; Hinckley, Steve Harold

    1999-10-01

    The Low-Activity Waste Process Technology Program at the Idaho Nuclear Technology and Engineering Center (INTEC) anticipates that large volumes of low-level/low-activity wastes will need to be grouted prior to near-surface disposal. During fiscal year 1999, grout formulations were studied for transuranic waste derived from INTEC liquid sodium-bearing waste and for projected newly generated low-level liquid waste. Additional studies were completed on radionuclide leaching, microbial degradation, waste neutralization, and a small mockup for grouting the INTEC underground storage tank residual heels.

  6. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program FY-99 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    A. K. Herbst; J. A. McCray; R. J. Kirkham; J. Pao; S. H. Hinckley

    1999-09-30

    The Low-Activity Waste Process Technology Program at the Idaho Nuclear Technology and Engineering Center (INTEC) anticipates that large volumes of low-level/low-activity wastes will need to be grouted prior to near-surface disposal. During fiscal year 1999, grout formulations were studied for transuranic waste derived from INTEC liquid sodium-bearing waste and for projected newly generated low-level liquid waste. Additional studies were completed on radionuclide leaching, microbial degradation, waste neutralization, and a small mockup for grouting the INTEC underground storage tank residual heels.

  7. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program FY-2000 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Herbst, Alan Keith; Mc Cray, John Alan; Kirkham, Robert John; Pao, Jenn Hai; Argyle, Mark Don; Lauerhass, Lance; Bendixsen, Carl Lee; Hinckley, Steve Harold

    2000-11-01

    The Low-Activity Waste Process Technology Program anticipated that grouting will be used for disposal of low-level and transuranic wastes generated at the Idaho Nuclear Technology Engineering Center (INTEC). During fiscal year 2000, grout formulations were studied for transuranic waste derived from INTEC liquid sodium-bearing waste and for projected newly generated low-level liquid waste. Additional studies were completed using silica gel and other absorbents to solidify sodium-bearing wastes. A feasibility study and conceptual design were completed for the construction of a grout pilot plant for simulated wastes and demonstration facility for actual wastes.

  8. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program FY-2000 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Herbst, A.K.; McCray, J.A.; Kirkham, R.J.; Pao, J.; Argyle, M.D.; Lauerhass, L.; Bendixsen, C.L.; Hinckley, S.H.

    2000-10-31

    The Low-Activity Waste Process Technology Program anticipated that grouting will be used for disposal of low-level and transuranic wastes generated at the Idaho Nuclear Technology Engineering Center (INTEC). During fiscal year 2000, grout formulations were studied for transuranic waste derived from INTEC liquid sodium-bearing waste and for projected newly generated low-level liquid waste. Additional studies were completed using silica gel and other absorbents to solidify sodium-bearing wastes. A feasibility study and conceptual design were completed for the construction of a grout pilot plant for simulated wastes and demonstration facility for actual wastes.

  9. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program, FY-98 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Herbst, A.K.; Rogers, A.Z.; McCray, J.A.; Simmons, R.F.; Palethorpe, S.J.

    1999-03-01

    The Low-Activity Waste Process Technology Program at the Idaho Nuclear Technology and Engineering Center (INTEC) anticipates that large volumes of low-level/low-activity wastes will need to be grouted prior to near-surface disposal. During fiscal year 1998, three grout formulations were studied for low-activity wastes derived from INTEC liquid sodium-bearing waste. Compressive strength and leach results are presented for phosphate bonding cement, acidic grout, and alkaline grout formulations. In an additional study, grout formulations are recommended for stabilization of the INTEC underground storage tank residual heels.

  10. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program FY-98 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Herbst, A.K.; McCray, J.A.; Rogers, A.Z.; Simmons, R.F.; Palethrope, S.J.

    1999-03-01

    The Low-Activity Waste Process Technology Program at the Idaho Nuclear Technology and Engineering Center (INTEC) anticipates that large volumes of low-level/low-activity wastes will need to be grouted prior to near-surface disposal. During fiscal year 1998, three grout formulations were studied for low-activity wastes derived from INTEC liquid sodium-bearing waste. Compressive strength and leach results are presented for phosphate bonding cement, acidic grout, and alkaline grout formulations. In an additional study, grout formulations are recommended for stabilization of the INTEC underground storage tank residual heels.

  11. Status of clean vehicle technologies and impact of the accompanying public policies; Etat des filieres de vehicules propres et impact des politiques publiques d'accompagnement

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-06-01

    The French inter-ministry committee for clean vehicles (CIVP) published in 1999 a report about the status of development of the different clean vehicle technologies (electric-powered, LPG-fueled, natural gas fueled, hybrid, fuel cells) and accompanied by recommendations for public policies. A re-evaluation of these technologies was planned by the end of 2002 and is the purpose of this document. The first part makes a status of the actions carried out by the public authorities since the previous CIVP report. The second part presents the present day situation of the LPG, natural gas and electric technologies. It describes also the recent advances in the classical technologies (gasoline and diesel engines) and includes a part about battery technologies and about the use of bio-fuels. The status of each technology is presented both for France and for foreign countries and with its perspectives of evolution. (J.S.)

  12. MSC POOL技术及其发展现状%MSC POOL Technology and Its Development Status

    Institute of Scientific and Technical Information of China (English)

    刘蓉; 李旭

    2011-01-01

    Based on technical research of MSC POOL, the definition and principle of MSC POOL technology are elaborated in a detail. The development status of various manufacturers for MSC POOL technology are summarized. Some typical business examples with MSC POOL technology and the benefits brought by MSC POOL technology in the practical application are analyzed. Finallyt some problems brought by MSC POOL technology and development trend of MSC POOL technology are proposed.%在对MSC POOL技术调研的基础上,详细阐述了MSC POOL技术的定义及原理,然后总结各个厂家针对MSCPOOL技术的发展状况,分析各地的一些典型商用MSC POOL技术实例以及MSC POOL技术在实际应用中所带来的优势,并总结了MSC POOL技术带来的一些问题,展望MSCPOOL技术未来的发展趋势.

  13. EHV systems technology - A look at the principles and current status. [Electric and Hybrid Vehicle

    Science.gov (United States)

    Kurtz, D. W.; Levin, R. R.

    1983-01-01

    An examination of the basic principles and practices of systems engineering is undertaken in the context of their application to the component and subsystem technologies involved in electric and hybrid vehicle (EHV) development. The limitations of purely electric vehicles are contrasted with hybrid, heat engine-incorporating vehicle technology, which is inherently more versatile. A hybrid vehicle concept assessment methodology is presented which employs current technology and yet fully satisfies U.S. Department of Energy petroleum displacement goals.

  14. Vertical-axis wind turbines -- The current status of an old technology

    Energy Technology Data Exchange (ETDEWEB)

    Berg, D.E.

    1996-12-31

    Vertical-axis wind turbine technology is not well understood, even though the earliest wind machines rotated about a vertical axis. The operating environment of a vertical-axis wind turbine is quite complex, but detailed analysis capabilities have been developed and verified over the last 30 years. Although vertical-axis technology has not been widely commercialized, it exhibits both advantages and disadvantages compared to horizontal-axis technology, and in some applications, it appears to offer significant advantages.

  15. The Status and Trends of Isotopes Technology and Application——Based on NTR Printed by IAEA in Last Five Years

    Directory of Open Access Journals (Sweden)

    ZHANG Hua-ming

    2015-11-01

    Full Text Available Every year IAEA organizes experts to produce a review on nuclear technology and its application all over the world, namely NTR (Nuclear Technology Review, in which the status of isotopes technologies and applications are totally involved. From recent five years’ reports (2010-2014, the forward concerning isotope technology and applications were presented, such as radioisotopes produced by accelerator, stable- and radio- isotopes and their applications to environment, nuclear medicine, food and agriculture. etc.

  16. Computer-aided technology for fabricating complete dentures: systematic review of historical background, current status, and future perspectives.

    Science.gov (United States)

    Bidra, Avinash S; Taylor, Thomas D; Agar, John R

    2013-06-01

    Computer-aided technology is an emerging method for fabricating complete dentures. Consolidated information about historical background, current status, and scope for the future is lacking. The purpose of this systematic review was to analyze the existing literature on computer-aided technology for fabricating complete dentures and provide the reader with a historical background, current status, and future perspectives on this emerging technology. An electronic search of the English language literature between the periods of January 1957 and June 2012 was performed by using PubMed/MEDLINE with the following specific search terms: CAD-CAM complete dentures, digital complete dentures, computer dentures, designed dentures, machined dentures, manufactured dentures, milled dentures, and rapid prototyping dentures. Additionally, the search terms were used on the Google search engine to identify current commercial manufacturers and their protocols. A total of 1584 English language titles were obtained from the electronic database, and the systematic application of exclusion criteria resulted in the identification of 8 articles pertaining to computer-aided technology for complete dentures. Since the first published report in 1994, multiple authors have described different theoretical models and protocols for fabricating complete dentures with computer-aided technology. Although no clinical trials or clinical reports were identified in the scientific literature, the Google search engine identified 2 commercial manufacturers in the United States currently fabricating complete dentures with computer-aided design and computer-aided manufacturing (CAD/CAM) technology for clinicians world-wide. These manufacturers have definitive protocols in place and offer exclusive dental materials, techniques, and laboratory support. Their protocols contrast with conventional paradigms for fabricating complete dentures and allow the fabrication of complete dentures in 2 clinical appointments

  17. Environmental control implications of generating electric power from coal. 1977 technology status report. [300 references

    Energy Technology Data Exchange (ETDEWEB)

    None

    1977-12-01

    This report is an in-depth review and analysis of particulate control technologies applicable to coal-fired utility boilers. Sources and characteristics of fly ash, applicable emission regulations, and measurement techniques are also discussed. Available control technologies (electrostatic precipitators, fabric filters, and wet scrubbers) are described in detail. In each case, the theory of operation, factors affecting performance, representative installations, costs, and secondary environmental impacts are analyzed. Techniques under development for improving the performance or extending the capabilities of existing technologies are described. Advanced alternative technologies now in the research stage are also evaluated.

  18. Status of the fast mission: Micro-satellite formation flying for technology, science and education

    NARCIS (Netherlands)

    Guo, J.; Maessen, D.C.; Gill, E.K.A.; Moon, S.G.; Zheng, G.

    2009-01-01

    FAST (Formation for Atmospheric Science and Technology demonstration) is a cooperative Dutch Chinese formation flying mission led by Delft University of Technology (TU Delft) in the Netherlands and Tsinghua University in China. It is expected to be the first international micro-satellite formation f

  19. Status of the fast mission: Micro-satellite formation flying for technology, science and education

    NARCIS (Netherlands)

    Guo, J.; Maessen, D.C.; Gill, E.K.A.; Moon, S.G.; Zheng, G.

    2009-01-01

    FAST (Formation for Atmospheric Science and Technology demonstration) is a cooperative Dutch Chinese formation flying mission led by Delft University of Technology (TU Delft) in the Netherlands and Tsinghua University in China. It is expected to be the first international micro-satellite formation

  20. Status of the fast mission: Micro-satellite formation flying for technology, science and education

    NARCIS (Netherlands)

    Guo, J.; Maessen, D.C.; Gill, E.K.A.; Moon, S.G.; Zheng, G.

    2009-01-01

    FAST (Formation for Atmospheric Science and Technology demonstration) is a cooperative Dutch Chinese formation flying mission led by Delft University of Technology (TU Delft) in the Netherlands and Tsinghua University in China. It is expected to be the first international micro-satellite formation f

  1. The Status Quo and Prospect of Chinese-funded Enterprises Technology Transfer to Africa

    Institute of Scientific and Technical Information of China (English)

    Yang Guang; Li Xinfeng; Chen Mo

    2015-01-01

    Weak technical foundation is an important bottleneck to restrict economic growth of African countries. To promote the technological progress of Africa, the Chinese African strategy always encourages and supports Chinese-funded enterprises to transfer technology to Africa, but it is worth nothing that the critique by some African scholars and local communities on technology transfer to Africa by the Chinese-funded enterprises is spreading. In fact, in order to implement the "localization" strategy, develop African market or honor cooperation agreement on additional technical transfer, Chinese-funded enterprises always adhere to actively carrying out technology transfer to Africa, and have made certain achievements in improving the host countries’ technical environment, increasing labor income and others. In order to cope with the challenges and dispel the crisis of public opinion, China should uphold the concept of "teaching how to fish" and push forward the continuous upgrading and optimization of technology transfer to Africa all-dimensionally.

  2. The USAF Phillips Laboratory sodium-sulfur battery technology program: Results and status

    Science.gov (United States)

    Rainbow, Marc E.; Somerville, Andrew

    1996-01-01

    Tests performed on NaS batteries are reported. The results of safety and abuse testing, shock and vibration tests, cell failure on warm-up, freeze thaw, overtemperature conditions, electrolyte fracture, overdischarge, and short circuit tests are presented along with GEO and LEO cycle tests and the status of the NaS cell flight tests.

  3. Forward Osmosis in India: Status and Comparison with Other Desalination Technologies.

    Science.gov (United States)

    Mehta, Dhruv; Gupta, Lovleen; Dhingra, Rijul

    2014-01-01

    With an increase in demand of freshwater and depleting water sources, it is imperative to switch to seawater as a regular source of water supply. However, due to the high total dissolved solid content, it has to be desalinated to make it drinkable. While desalination technologies have been used for many years, mass deployment of such technologies poses a number of challenges like high energy requirements as well as high negative environmental impact through side products and CO2 emissions. The purpose of this paper is to present a sustainable technology for desalination. Forward osmosis, an emerging technology, is compared with the other commonly used technologies worldwide, namely, multieffect distillation, multistage flash distillation, and reverse osmosis as well as other emerging technologies like vapour compression, solar humidification dehumidification, nanofiltration, and freezing desalination. As energy consumption and associated greenhouse gas emissions are one of the major concerns of desalination, this paper concludes that forward osmosis is an emerging sustainable technology for seawater desalination. This paper then presents the challenges involved in the application of forward osmosis in India and presents a plant setup. In the end, the cost comparison of a forward osmosis and reverse osmosis plant has been done and it was concluded that forward osmosis is economically better as well.

  4. The development and current status of the technology of isotope and radiation in China

    Energy Technology Data Exchange (ETDEWEB)

    Luo Zhifu [Dept. of Isotope, China Inst. of Atomic Energy, Beijing, BJ (China)

    1998-10-01

    The research and application of the technology of isotopes and radiation have been reviewed. Since the setup of the China`s first nuclear reactor at China Institute of Nuclear Energy in 1958, the technology of isotopes and radiation has been developed significantly. A research and application system has formed a considerable state. The technology of isotopes and radiation has been taken into the fields of industry, agriculture, medicine, and scientific research. The main achievements are on radiopharmaceuticals, radiation source, radiation process, and radioactive tracers. (author)

  5. Status of Technology in Domestic Nitrogenous Fertilizer Industry%我国氮肥工业技术状况

    Institute of Scientific and Technical Information of China (English)

    曹占高; 凌晓东; 常怀春

    2012-01-01

    分析了国外、国内氮肥工业生产装置的技术状况,罗列了大、中、小型合成氨装置和尿素装置的消耗情况.介绍了我国氮肥生产装置关键部位具有国内或国际水平的新技术的开发与应用情况.%An analysis is made of the status of technology used in the production units of foreign and domestic nitrogenous fertilizer industry, and consumption levels are listed for large-, medium- and small-scale ammonia and urea units. A presentation is given of the development and application of new technology at domestic or international level used in key locations of domestic nitrogenous fertilizer production units.

  6. Advances for prosthetic technology from historical perspective to current status to future application

    CERN Document Server

    LeMoyne, Robert

    2016-01-01

    This book focuses on the advances in transtibial prosthetic technology and targets research in the evolution of the powered prosthesis such as the BiOM, which was derived from considerable research and development at the Massachusetts Institute of Technology. The concept of the book spans the historical evolution of prosthetic applications from passive to new and futuristic robotic prosthetic technologies.  The author describes the reasons for amputation, surgical procedures, and an historical perspective of the prosthesis for the lower limb. He also addresses the phases and sub-phases of gait and compensatory mechanisms arising for a transtibial prosthesis and links the compensatory mechanisms to long-term morbidities.  The general technologies for gait analysis central to prosthetic design and the inherent biomechanics foundations for analysis are also explored.  The book reports on recent-past to current-term applications with passive elastic prostheses.  The core of the book deals with futuristic robo...

  7. Heatshield for Extreme Entry Environment Technology (HEEET) Development and Maturation Status for NF Missions

    Science.gov (United States)

    Ellerby, D.; Blosser, M.; Boghozian, T.; Chavez-Garcia, J.; Chinnapongse, R.; Fowler, M.; Gage, P.; Gasch, M.; Gonzales, G.; Hamm, K.; Kazemba, C.; Ma, J.; Mahzari, M.; Milos, F.; Nishioka, O.; Peterson, K.; Poteet, C.; Prabhu, D.; Splinter, S.; Stackpoole, M.; Venkatapathy, E.; Young, Z.

    2016-01-01

    This poster provides an overview of the requirements, design, development and testing of the 3D Woven TPS being developed under NASA's Heatshield for Extreme Entry Environment Technology (HEEET) project. Under this current program, NASA is working to develop a Thermal Protection System (TPS) capable of surviving entry into Saturn. A primary goal of the project is to build and test an Engineering Test Unit (ETU) to establish a Technical Readiness Level (TRL) of 6 for this technology by 2017.

  8. Status of Wireless Technologies Used For Designing Home Automation System - A Review

    Directory of Open Access Journals (Sweden)

    Ashish J. Ingle

    2011-08-01

    Full Text Available The concept of “Automation” have just started flourishing, companies have developed automated systems of their own to control alarms, sensors, actuators and video cameras and moving further the concept of automated buildings is being recognized. This Paper attempts to study standards / technologies which are used for Home Automation. In brief, concern of this Paper is to cover the detail Technical aspects of the Home Automation Standard/ Technology.

  9. Forward Osmosis in India: Status and Comparison with Other Desalination Technologies

    OpenAIRE

    Mehta, Dhruv; Gupta, Lovleen; Dhingra, Rijul

    2014-01-01

    With an increase in demand of freshwater and depleting water sources, it is imperative to switch to seawater as a regular source of water supply. However, due to the high total dissolved solid content, it has to be desalinated to make it drinkable. While desalination technologies have been used for many years, mass deployment of such technologies poses a number of challenges like high energy requirements as well as high negative environmental impact through side products and CO2 emissions. Th...

  10. Recycling Status of Raw Household Garbage in Local Governments : From the Perspective of Social Technology

    OpenAIRE

    中村, 修; 和田, 真理

    2003-01-01

    The argument about the creation of a recycling-oriented society is growing. However, there is no organized study about the recycling business of raw garbage, which is to be the base of food recycling that reuses raw garbage as resource. Given this factor, We have examined the development of the recycling business of raw garbage from the social technology perspective and added my analysis in this report. As a result, the necessity of social technology for recycling such as the separating metho...

  11. Status of Wireless Technologies Used For Designing Home Automation System - A Review

    OpenAIRE

    Ashish J. Ingle; Bharti W. Gawali

    2011-01-01

    The concept of “Automation” have just started flourishing, companies have developed automated systems of their own to control alarms, sensors, actuators and video cameras and moving further the concept of automated buildings is being recognized. This Paper attempts to study standards / technologies which are used for Home Automation. In brief, concern of this Paper is to cover the detail Technical aspects of the Home Automation Standard/ Technology.

  12. Environmental control implications of generating electric power from coal. Technology status report. Volume II

    Energy Technology Data Exchange (ETDEWEB)

    None

    1976-12-01

    This is the first in a series of reports evaluating environmental control technologies applicable to the coal-to-electricity process. The technologies are described and evaluated from an engineering and cost perspective based upon the best available information obtained from utility experience and development work in progress. Environmental control regulations and the health effects of pollutants are also reviewed. Emphasis is placed primarily upon technologies that are now in use. For SO/sub 2/ control, these include the use of low sulfur coal, cleaned coal, or flue-gas desulfurization systems. Electrostatic precipitators and fabric filters used for the control of particulate matter are analyzed, and combustion modifications for NO/sub x/ control are described. In each area, advanced technologies still in the development stage are described briefly and evaluated on the basis of current knowledge. Fluidized-bed combustion (FBC) is a near-term technology that is discussed extensively in the report. The potential for control of SO/sub 2/ and NO/sub x/ emissions by use of FBC is analyzed, as are the resulting solid waste disposal problems, cost estimates, and its potential applicability to electric utility systems. Volume II presents the detailed technology analyses complete with reference citations. This same material is given in condensed form in Volume I without references. A brief executive summary is also given in Volume I.

  13. Status of Technology Development to enable Large Stable UVOIR Space Telescopes

    Science.gov (United States)

    Stahl, H. Philip; MSFC AMTD Team

    2017-01-01

    NASA MSFC has two funded Strategic Astrophysics Technology projects to develop technology for potential future large missions: AMTD and PTC. The Advanced Mirror Technology Development (AMTD) project is developing technology to make mechanically stable mirrors for a 4-meter or larger UVOIR space telescope. AMTD is demonstrating this technology by making a 1.5 meter diameter x 200 mm thick ULE(C) mirror that is 1/3rd scale of a full size 4-m mirror. AMTD is characterizing the mechanical and thermal performance of this mirror and of a 1.2-meter Zerodur(R) mirror to validate integrate modeling tools. Additionally, AMTD has developed integrated modeling tools which are being used to evaluate primary mirror systems for a potential Habitable Exoplanet Mission and analyzed the interaction between optical telescope wavefront stability and coronagraph contrast leakage. Predictive Thermal Control (PTC) project is developing technology to enable high stability thermal wavefront performance by using integrated modeling tools to predict and actively control the thermal environment of a 4-m or larger UVOIR space telescope.

  14. Measurement of Spent Fuel Assemblies - Overview of the Status of the Technology for Initiating Discussion at NATIONAL RESEARCH CENTRE KURCHATOV INSTITUTE June 2013

    Energy Technology Data Exchange (ETDEWEB)

    SISKIND B.; N/A

    2013-06-03

    This presentation provides an overview of the status of the technology for the measurement of the fissile material content of spent nuclear reactor fuel. The emphasis is on how the needs of the U.S. Nuclear Regulatory Commission and the International Atomic Energy Agency are met by the available technology and what more needs to be done in this area.

  15. Application and Research Status of Alternative Materials for 3D-printing Technology

    OpenAIRE

    Wang, Yanqing; SHEN Jingxing; WU Haiquan

    2016-01-01

    Application features and research status of alternative 3D-printing materials for six typical 3D-printingtechniques were reviewed. From the point of view of physical forms, four kinds of materials of liquid photosensitive resin material, thin sheet material (paper or plastic film) , low melting point filament material and powder material are included. And from the composition point of view, nearly all kinds of materials in the production and life are included such as polymer materials: plasti...

  16. Hydrogen storage for vehicular applications: Technology status and key development areas

    Energy Technology Data Exchange (ETDEWEB)

    Robinson, S.L.; Handrock, J.L.

    1994-04-01

    The state-of-the-art of hydrogen storage technology is reviewed, including gaseous, liquid, hydride, surface adsorbed media, glass microsphere, chemical reaction, and liquid chemical technologies. The review of each technology includes a discussion of advantages, disadvantages, likelihood of success, and key research and development activities. A preferred technological path for the development of effective near-term hydrogen storage includes both cur-rent DOT qualified and advanced compressed storage for down-sized highly efficient but moderate range vehicles, and liquid storage for fleet vehicle applications. Adsorbate media are also suitable for fleet applications but not for intermittent uses. Volume-optimized transition metal hydride beds are also viable for short range applications. Long-term development of coated nanoparticulate or metal matrix high conductivity magnesium alloy, is recommended. In addition, a room temperature adsorbate medium should be developed to avoid cryogenic storage requirements. Chemical storage and oxidative schemes present serious obstacles which must be addressed for these technologies to have a future role.

  17. The Status Quo and Outlook of Chinese Coal Geology and Exploration Technologies

    Institute of Scientific and Technical Information of China (English)

    XU Shuishi; CHENG Aiguo; CAO Daiyong

    2008-01-01

    Coal is China's dominant energy resource. Coal geological exploration is the basis of sustainable development of coal industry. Since the late 1990s, the advances in Chinese coal geology and exploration techniques have been shown in the following aspects. (1) The basic research of coal geology has changed from traditional geological studies to earth system science; (2) Breakthroughs have been achieved in integrated exploration techniques for coal resources; (3) Evaluation of coal and coalbed methane resources provides important basis for macropolicy making for China's coal industry and construction of large coal bases; (4) Significant advances have been made in using information technology in coal geological exploration and 3S (GPS, GIS, RS) technology. For the present and a period of time in the future, major tasks of Chinese coal geological technology are as follows: (1) solving resources replacement problem in eastern China and geological problems of deep mining; (2) solving problem of integrated coal exploration of complex regions in energy bases of central China, and resources problems induced by coal exploitation; (3) making efforts to enhance the level of geological research and resources evaluation of coal-accumulation basins in western China; (4) strengthening geological research of clean coal technologies; (5) strengthening geological research of the problems in modern coal mining and safe production; (6) promoting information technology in coal resources and major geological investigations.

  18. Development Status and Challenge of PetroChina's Deep Drilling Technologies

    Institute of Scientific and Technical Information of China (English)

    Wang Haige; Zheng Xinquan

    2005-01-01

    @@ Deep and ultra-deep drilling technologies have been developed since the late 1930s, and got great achievements especially in the last two decades. The depth of well completion has even reached to 12 kilometers. Several countries, such as US and some European countries,are leading in the advanced deep and ultra-deep drilling technologies in the world. In recent years, nevertheless,PetroChina has also made big progress in mechanical penetration rate (ROP), drilling period, amount of drilling bit used in a single well of deep drilling as well as in deep drilling equipments. Compared with the high-level technologies of complicated deep drilling in the world,PetroChina still has a long way to go.

  19. Application of structural health monitoring technologies to bio-systems: current status and path forward

    Science.gov (United States)

    Bhalla, Suresh; Srivastava, Shashank; Suresh, Rupali; Moharana, Sumedha; Kaur, Naveet; Gupta, Ashok

    2015-03-01

    This paper presents a case for extension of structural health monitoring (SHM) technologies to offer solutions for biomedical problems. SHM research has made remarkable progress during the last two/ three decades. These technologies are now being extended for possible applications in the bio-medical field. Especially, smart materials, such as piezoelectric ceramic (PZT) patches and fibre-Bragg grating (FBG) sensors, offer a new set of possibilities to the bio-medical community to augment their conventional set of sensors, tools and equipment. The paper presents some of the recent extensions of SHM, such as condition monitoring of bones, monitoring of dental implant post surgery and foot pressure measurement. Latest developments, such as non-bonded configuration of PZT patches for monitoring bones and possible applications in osteoporosis detection, are also discussed. In essence, there is a whole new gamut of new possibilities for SHM technologies making their foray into the bi-medical sector.

  20. Status and issue of coal mine safety technology development in Japan and international co-operation

    Energy Technology Data Exchange (ETDEWEB)

    Nakmura, K. [Ministry of International Trade and Industry, Tokyo (Japan). Mine Safety Division, Environmental Protection and Industrial Location Bureau

    2001-03-01

    Recent trends in coal mine accidents in Japan are reviewed and the incident of mine fire at the Ikeshima coal mine in Nagasaki Prefecture in February 2000 reported. An overview is given of safety projects underway in Japan or jointly with Australia. Cooperative projects to prevent spontaneous combustion to develop underground monitoring techniques, and to transfer safety technologies from Japan abroad are outlined. Other projects carried out by the Japan International Cooperation Agency (JICA) are listed. Japan's long-term policy for safety technology development is outlined. 4 figs., 6 tabs.

  1. CO2 capture technologies: current status and new directions using supported ionic liquid phase (SILP) absorbers

    DEFF Research Database (Denmark)

    Kolding, Helene; Fehrmann, Rasmus; Riisager, Anders

    2012-01-01

    Current state-of-the-art techniques for CO2 capture are presented and discussed. Post-combustion capture of CO2 by absorption is the technology most easily retrofitted to existing installations, but at present this is not economically viable to install and run. Using ionic liquids instead...... candidate for CO2 absorption using SILP technology. Thus a solid SILP absorber comprised of 40 wt% [N6666][Pro] loaded on precalcined silica quantitatively takes up about 1.2 mole CO2 per mole of ionic liquid in consecutive absorption-desorption cycles in a flow-experiment performed with 0.09 bar of CO2 (9......% CO2 in He)....

  2. CO2 capture technologies: current status and new directions using supported ionic liquid phase (SILP) absorbers

    DEFF Research Database (Denmark)

    Kolding, Helene; Fehrmann, Rasmus; Riisager, Anders

    2012-01-01

    Current state-of-the-art techniques for CO2 capture are presented and discussed. Post-combustion capture of CO2 by absorption is the technology most easily retrofitted to existing installations, but at present this is not economically viable to install and run. Using ionic liquids instead...... candidate for CO2 absorption using SILP technology. Thus a solid SILP absorber comprised of 40 wt% [N6666][Pro] loaded on precalcined silica quantitatively takes up about 1.2 mole CO2 per mole of ionic liquid in consecutive absorption-desorption cycles in a flow-experiment performed with 0.09 bar of CO2 (9......% CO2 in He)....

  3. 惯性技术的研究现状与发展趋势分析%Research Status and Development Trend Analysis of Inertial Technology

    Institute of Scientific and Technical Information of China (English)

    江嘉宇

    2015-01-01

    Inertial technology is a comprehensive subject motion information and perception technology, the core and development of inertial technology is inertial navigation technology, this paper mainly focuses on the research status and development trend of inertial technology.%惯性技术是一种综合学科运动信息感知技术,惯性技术的核心和发展标志就是惯性导航技术,本文主要针对惯性技术的研究现状与发展趋势进行综合性分析。

  4. Status of Fuel Development and Manufacturing for Space Nuclear Reactors at BWX Technologies

    Science.gov (United States)

    Carmack, W. J.; Husser, D. L.; Mohr, T. C.; Richardson, W. C.

    2004-02-01

    New advanced nuclear space propulsion systems will soon seek a high temperature, stable fuel form. BWX Technologies Inc (BWXT) has a long history of fuel manufacturing. UO2, UCO, and UCx have been fabricated at BWXT for various US and international programs. Recent efforts at BWXT have focused on establishing the manufacturing techniques and analysis capabilities needed to provide a high quality, high power, compact nuclear reactor for use in space nuclear powered missions. To support the production of a space nuclear reactor, uranium nitride has recently been manufactured by BWXT. In addition, analytical chemistry and analysis techniques have been developed to provide verification and qualification of the uranium nitride production process. The fabrication of a space nuclear reactor will require the ability to place an unclad fuel form into a clad structure for assembly into a reactor core configuration. To this end, BWX Technologies has reestablished its capability for machining, GTA welding, and EB welding of refractory metals. Specifically, BWX Technologies has demonstrated GTA welding of niobium flat plate and EB welding of niobium and Nb-1Zr tubing. In performing these demonstration activities, BWX Technologies has established the necessary infrastructure to manufacture UO2, UCx, or UNx fuel, components, and complete reactor assemblies in support of space nuclear programs.

  5. Electric energy gun technology: status of the french-german-netherlands programme

    NARCIS (Netherlands)

    Kolkert, W.J.; Jamet, F.

    1999-01-01

    Research and technology development is being performed jointly in six subprograms. Next to operational aspects and system studies, railgun, coilgun and electrothermal gun launch is investigated. To power these future gun weapon systems, research on both energy storage, switching, pulse forming

  6. Electric energy gun technology: status of the french-german-netherlands programme

    NARCIS (Netherlands)

    Kolkert, W.J.; Jamet, F.

    1999-01-01

    Research and technology development is being performed jointly in six subprograms. Next to operational aspects and system studies, railgun, coilgun and electrothermal gun launch is investigated. To power these future gun weapon systems, research on both energy storage, switching, pulse forming netwo

  7. "Whose Child Is This?": Determining Legal Status for Lesbian Parents Who Used Assisted Reproductive Technologies

    Science.gov (United States)

    Hare, Jan; Skinner, Denise

    2008-01-01

    Assisted reproductive technologies (ARTs) have helped heterosexuals, lesbians, and gays fulfill desires to become parents. In this article, we identify assumptions upon which parentage rights in the United States are based. Examining recent legal decisions in California concerning 3 families headed by lesbian parents who used ARTs, we find that…

  8. Status of NIF mirror technologies for completion of the NIF facility

    Energy Technology Data Exchange (ETDEWEB)

    Stolz, C J

    2008-08-07

    The 1600 mirrors required for the National Ignition Facility (NIF) are now coated with the last optics currently being installed. The combined surface area of the NIF mirrors is almost 450 square meters, roughly 3.4 times greater than the surface area of the two Keck primary mirrors. Additionally, the power handling specification of NIF mirrors is 19 orders of magnitude greater than that of the Keck mirrors. The NIF laser will be at least 40x greater energy than the previous LLNL fusion laser called NOVA. To manufacture these mirrors, a number of new technologies (electrolytic in-situ dressing, ion figuring, source stabilization) were used that were not available for previous fusion laser optics. Post deposition technologies designed to increase laser resistance (off-line laser conditioning, solarization, air knives) have also been utilized. This paper summarizes the differences in technologies used to manufacture NIF mirrors from those used for previous fusion lasers and examines potential future technologies that would enable higher fluence operations and extend lifetimes.

  9. Recent status of fluidized bed technologies for producing iron input materials for steelmaking

    Institute of Scientific and Technical Information of China (English)

    Johannes Leopold Schenk

    2011-01-01

    Today steel is produced by two steelmaking processes,the basic oxygen furnace and the electric arc furnace. Three types of iron input materials for both processes are liquid hot metal or in solidified form as pig iron,direct reduced iron (DRI) and hot briquetted iron (HBI) as well as steel scrap. Hot metal,pig iron,DRI and HBI are virgin iron materials,which have to be produced from iron ore by the so-called ironmaking technologies.New ironmaking processes based on fluidized bed technology have been developed in the last two decades. The main advantage of these technologies is that fine ore can be directly used in the processes and prior treatment such as sintering or pelletizing can be avoided which is required for the established processes. Theoretical aspects for reduction of fine iron oxides in a fluidized bed reactor system will be explained. The fluidized bed reducing technologies utilized in the most advanced new ironmaking processes for direct use of fine ore,FINMET(R),Circored(R),FINEX(R) and Hlsmelt(R) will be compared.

  10. Electric energy gun technology: status of the french-german-netherlands programme

    NARCIS (Netherlands)

    Kolkert, W.J.; Jamet, F.

    1999-01-01

    Research and technology development is being performed jointly in six subprograms. Next to operational aspects and system studies, railgun, coilgun and electrothermal gun launch is investigated. To power these future gun weapon systems, research on both energy storage, switching, pulse forming netwo

  11. Status and applicability of solid polymer electrolyte technology to electrolytic hydrogen and oxygen production

    Science.gov (United States)

    Titterington, W. A.

    1973-01-01

    The solid polymer electrolyte (SPE) water electrolysis technology is presented as a potential energy conversion method for wind driven generator systems. Electrolysis life and performance data are presented from laboratory sized single cells (7.2 sq in active area) with high cell current density selected (1000 ASF) for normal operation.

  12. Status of The General Atomics Low Speed Urban Maglev Technology Development Program

    Energy Technology Data Exchange (ETDEWEB)

    Gurol, S; Baldi, R; Bever, D; Post, R

    2004-06-16

    This paper presents the status of General Atomics Urban Maglev Program. The development provides an innovative approach for low speed transportation suitable for very challenging urban environments. Permanent magnets arranged in a 'Halbach' array configuration produce a relatively stiff magnetic suspension operating with an air gap of 25 mm. The project has progressed from design and prototype hardware testing, to the construction of a 120-meter full-scale test track, located in San Diego, California. Dynamic testing of the levitation, propulsion and guidance systems is being performed.

  13. Technological Innovation and Competitiveness in The Global Economy: India's Changing Status and Its Implications

    Directory of Open Access Journals (Sweden)

    Bala Subrahmanya Mungila Hillemane

    2013-09-01

    Full Text Available   This paper probes the changing innovation status and resultant competitiveness in the context of global economy and questions the recent ranking improvements of India on the basis of hard economic facts. This paper has made use of secondary data comprising innovation indices and competitiveness rankings published by international organizations and reputed business schools from time to time since 1996 to analyze the changing status of India internationally. Later, using secondary data on key macro-economic variables published by the Government of India, the recent ranking of India is closely examined as well as recent steps taken by the government of India to improve competitiveness is elaborated. The study throws light on the changing but improving innovation dimensions and competitiveness ranking of India since 1996 till 2010. From nowhere India emerges and occupies the second slot, after China, in the global competitiveness ranking. But hard core macro-economic variables do not justify India’s elevation to the top in any way. Given this, the study throws light on the recent policy measures announced by the Government of India and its implications as well as policy imperatives.

  14. Clean Coal Technology Demonstration Program: Project fact sheets 2000, status as of June 30, 2000

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-09-01

    The Clean Coal Technology Demonstration Program (CCT Program), a model of government and industry cooperation, responds to the Department of Energy's (DOE) mission to foster a secure and reliable energy system that is environmentally and economically sustainable. The CCT Program represents an investment of over $5.2 billion in advanced coal-based technology, with industry and state governments providing an unprecedented 66 percent of the funding. With 26 of the 38 active projects having completed operations, the CCT Program has yielded clean coal technologies (CCTs) that are capable of meeting existing and emerging environmental regulations and competing in a deregulated electric power marketplace. The CCT Program is providing a portfolio of technologies that will assure that U.S. recoverable coal reserves of 274 billion tons can continue to supply the nation's energy needs economically and in an environmentally sound manner. As the nation embarks on a new millennium, many of the clean coal technologies have realized commercial application. Industry stands ready to respond to the energy and environmental demands of the 21st century, both domestically and internationally, For existing power plants, there are cost-effective environmental control devices to control sulfur dioxide (S02), nitrogen oxides (NO,), and particulate matter (PM). Also ready is a new generation of technologies that can produce electricity and other commodities, such as steam and synthetic gas, and provide efficiencies and environmental performance responsive to global climate change concerns. The CCT Program took a pollution prevention approach as well, demonstrating technologies that remove pollutants or their precursors from coal-based fuels before combustion. Finally, new technologies were introduced into the major coal-based industries, such as steel production, to enhance environmental performance. Thanks in part to the CCT Program, coal--abundant, secure, and economical

  15. Status of HgCdTe Barrier Infrared Detectors Grown by MOCVD in Military University of Technology

    Science.gov (United States)

    Kopytko, M.; Jóźwikowski, K.; Martyniuk, P.; Gawron, W.; Madejczyk, P.; Kowalewski, A.; Markowska, O.; Rogalski, A.; Rutkowski, J.

    2016-09-01

    In this paper we present the status of HgCdTe barrier detectors with an emphasis on technological progress in metalorganic chemical vapor deposition (MOCVD) growth achieved recently at the Institute of Applied Physics, Military University of Technology. It is shown that MOCVD technology is an excellent tool for HgCdTe barrier architecture growth with a wide range of composition, donor /acceptor doping, and without post-grown annealing. The device concept of a specific barrier bandgap architecture integrated with Auger-suppression is as a good solution for high-operating temperature infrared detectors. Analyzed devices show a high performance comparable with the state-of-the-art of HgCdTe photodiodes. Dark current densities are close to the values given by "Rule 07" and detectivities of non-immersed detectors are close to the value marked for HgCdTe photodiodes. Experimental data of long-wavelength infrared detector structures were confirmed by numerical simulations obtained by a commercially available software APSYS platform. A detailed analysis applied to explain dark current plots was made, taking into account Shockley-Read-Hall, Auger, and tunneling currents.

  16. Production of "Green Natural Gas" Using Solid Oxide Electrolysis Cells (SOEC): Status of Technology and Costs

    DEFF Research Database (Denmark)

    Mogensen, Mogens Bjerg; Jensen, Søren Højgaard; Ebbesen, Sune Dalgaard

    2012-01-01

    This paper gives arguments in favour of using green natural gas (GNG) as storage media for the intermittent renewable energy sources. GNG is here defined as being CH4, i.e. methane, often called synthetic natural gas or substitute natural gas (SNG), produced using renewable or at least CO2 neutral...... energy sources only. Also dimethyl ether (DME = (CH3)2O), which might be called Liquefied Green Gas, LGG, in analogy to Liquefied Petroleum Gas, LPG, because DME has properties similar to LPG. It further gives a short review of the state of the art of electrolysis in general and SOEC in particular....... Production of synthesis gas (H2 + CO) from CO2 and H2O using SOEC technology is evaluated. GNG and LGG can be produced from synthesis gas (or short: syngas) by means of well established commercially available catalysis technology. Finally, estimations of costs and efficiencies are presented and the relative...

  17. Three-dimensional display technologies of recent interest: principles, status, and issues [Invited].

    Science.gov (United States)

    Hong, Jisoo; Kim, Youngmin; Choi, Hee-Jin; Hahn, Joonku; Park, Jae-Hyeung; Kim, Hwi; Min, Sung-Wook; Chen, Ni; Lee, Byoungho

    2011-12-01

    Recent trends in three-dimensional (3D) display technologies are very interesting in that both old-fashioned and up-to-date technologies are being actively investigated together. The release of the first commercially successful 3D display product raised new research topics in stereoscopic display. Autostereoscopic display renders a ray field of a 3D image, whereas holography replicates a wave field of it. Many investigations have been conducted on the next candidates for commercial products to resolve existing limitations. Up-to-date see-through 3D display is a concept close to the ultimate goal of presenting seamless virtual images. Although it is still far from practical use, many efforts have been made to resolve issues such as occlusion problems.

  18. Status and recommendadtions for RD&D on energy storage technologies in a Danish context

    DEFF Research Database (Denmark)

    Elmegaard, Brian; Christensen, Claus Hviid; Kjøller, Claus

    2014-01-01

    . The work has been based on an assessment of the technical needs for energy storage in the future Danish energy system towards 2030 and further on. In particular, the report does not present new information or data on future economic performance of storage technologies. Within the given timeframes......The report briefly describes analyses of the future need for energy storage in a Danish perspective and assesses which sectors of the energy system, where energy storage can be expected to play a role and what kind of services it could provide to give flexibility in the sustainable energy system...... and resources for the work, it has also not been possible to provide an exhaustive catalogue or comprehensive descriptions of energy storage technologies....

  19. The United Nations Human Space Technology Initiative (HSTI): Activity Status in 2012

    CERN Document Server

    Ochiai, M; Haubold, H J; Doi, T

    2012-01-01

    In 2010, the Human Space Technology Initiative (HSTI) was launched by the United Nations Office for Outer Space Affairs (UNOOSA) within the United Nations Programme on Space Applications. The Initiative aims at promoting international cooperation in human spaceflight and space exploration-related activities, creating awareness among countries on the benefits of utilizing human space technology and its applications, and building capacity in microgravity education and research. HSTI has conducted a series of outreach activities and expert meetings bringing together participants from around the world. HSTI will also be implementing science and educational activities in relevant areas to raise the capacities, particularly in developing countries, in pursuit of the development goals of the United Nations, thus contributing to promoting the peaceful uses of outer space.

  20. Technologies for Arsenic Removal from Water: Current Status and Future Perspectives

    Directory of Open Access Journals (Sweden)

    Nina Ricci Nicomel

    2015-12-01

    Full Text Available This review paper presents an overview of the available technologies used nowadays for the removal of arsenic species from water. Conventionally applied techniques to remove arsenic species include oxidation, coagulation-flocculation, and membrane techniques. Besides, progress has recently been made on the utility of various nanoparticles for the remediation of contaminated water. A critical analysis of the most widely investigated nanoparticles is presented and promising future research on novel porous materials, such as metal organic frameworks, is suggested.

  1. Technologies for Arsenic Removal from Water: Current Status and Future Perspectives

    Science.gov (United States)

    Nicomel, Nina Ricci; Leus, Karen; Folens, Karel; Van Der Voort, Pascal; Du Laing, Gijs

    2015-01-01

    This review paper presents an overview of the available technologies used nowadays for the removal of arsenic species from water. Conventionally applied techniques to remove arsenic species include oxidation, coagulation-flocculation, and membrane techniques. Besides, progress has recently been made on the utility of various nanoparticles for the remediation of contaminated water. A critical analysis of the most widely investigated nanoparticles is presented and promising future research on novel porous materials, such as metal organic frameworks, is suggested. PMID:26703687

  2. Current status and future prospects for enabling chemistry technology in the drug discovery process

    Science.gov (United States)

    Djuric, Stevan W.; Hutchins, Charles W.; Talaty, Nari N.

    2016-01-01

    This review covers recent advances in the implementation of enabling chemistry technologies into the drug discovery process. Areas covered include parallel synthesis chemistry, high-throughput experimentation, automated synthesis and purification methods, flow chemistry methodology including photochemistry, electrochemistry, and the handling of “dangerous” reagents. Also featured are advances in the “computer-assisted drug design” area and the expanding application of novel mass spectrometry-based techniques to a wide range of drug discovery activities. PMID:27781094

  3. Current status and future prospects for enabling chemistry technology in the drug discovery process

    OpenAIRE

    Djuric, Stevan W.; Hutchins, Charles W; Talaty, Nari N.

    2016-01-01

    This review covers recent advances in the implementation of enabling chemistry technologies into the drug discovery process. Areas covered include parallel synthesis chemistry, high-throughput experimentation, automated synthesis and purification methods, flow chemistry methodology including photochemistry, electrochemistry, and the handling of “dangerous” reagents. Also featured are advances in the “computer-assisted drug design” area and the expanding application of novel mass spectrometry-...

  4. Regulatory Risk Reduction for Advanced Reactor Technologies – FY2016 Status and Work Plan Summary

    Energy Technology Data Exchange (ETDEWEB)

    Moe, Wayne Leland [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2016-08-01

    Millions of public and private sector dollars have been invested over recent decades to realize greater efficiency, reliability, and the inherent and passive safety offered by advanced nuclear reactor technologies. However, a major challenge in experiencing those benefits resides in the existing U.S. regulatory framework. This framework governs all commercial nuclear plant construction, operations, and safety issues and is highly large light water reactor (LWR) technology centric. The framework must be modernized to effectively deal with non-LWR advanced designs if those designs are to become part of the U.S energy supply. The U.S. Department of Energy’s (DOE) Advanced Reactor Technologies (ART) Regulatory Risk Reduction (RRR) initiative, managed by the Regulatory Affairs Department at the Idaho National Laboratory (INL), is establishing a capability that can systematically retire extraneous licensing risks associated with regulatory framework incompatibilities. This capability proposes to rely heavily on the perspectives of the affected regulated community (i.e., commercial advanced reactor designers/vendors and prospective owner/operators) yet remain tuned to assuring public safety and acceptability by regulators responsible for license issuance. The extent to which broad industry perspectives are being incorporated into the proposed framework makes this initiative unique and of potential benefit to all future domestic non-LWR applicants

  5. Combustion devices technology team - An overview and status of STME-related activities

    Science.gov (United States)

    Tucker, P. K.; Croteau-Gillespie, Margie

    1992-01-01

    The Consortium for CFD applications in propulsion technology has been formed at NASA/Marshall Space Flight Center. The combustion devices technology team is one of the three teams that constitute the Consortium. While generally aiming to advance combustion devices technology for rocket propulsion, the team's efforts for the last 1 and 1/2 years have been focused on issues relating to the Space Transportation Main Engine (STME) nozzle. The nozzle design uses hydrogen-rich turbine exhaust to cool the wall in a film/dump scheme. This method of cooling presents challenges and associated risks for the nozzle designers and the engine/vehicle integrators. Within the nozzle itself, a key concern is the ability to effectively and efficiently film cool the wall. From the National Launch System vehicle base standpoint, there are concerns with dumping combustible gases at the nozzle exit and their potential adverse effects on the base thermal environment. The Combustion Team has developed and is implementing plans to use validated CFD tools to aid in risk mitigation for both areas.

  6. Smart technologies for detecting animal welfare status and delivering health remedies for rangeland systems.

    Science.gov (United States)

    Rutter, S M

    2014-04-01

    Although the emerging field of precision livestock farming (PLF) is predominantly associated with intensive animal production, there is increasing interest in applying smart technologies in extensive rangeland systems. Precision livestock farming technologies bring the possibility of closely monitoring the behaviour, liveweight and other parameters of individual animals in free-ranging systems. 'Virtual fencing', ideally based on positive reinforcement, i.e. rewarding animals for moving in a specified direction, has the potential to gently guide foraging livestock towards areas of vegetation identified by remote sensing. As well as reducing hunger, this could be integrated with weather forecasting to help ensure that animals are automatically directed to areas with appropriate shelter when adverse weather is forecast. The system could also direct animals towards handling facilities when required, reducing the fear and distress associated with being mustered. The integration of the various data collected by such a 'virtual shepherd' system should be able to rapidly detect disease and injury, and sick animals could then be automatically shepherded to an enclosure for treatment. In general, rangeland livestock already have the freedom to express normal behaviour, but PLF technologies could facilitate this. By bringing levels of monitoring and control normally associated with intensive production to rangeland systems, PLF has the potential, with appropriate adoption, to enhance the capacity of rangeland livestock production systems to meet key areas of welfare concern highlighted by the Five Freedoms.

  7. Current status and potential of embryo transfer and reproductive technology in dairy cattle.

    Science.gov (United States)

    Hasler, J F

    1992-10-01

    Significant use of embryo transfer in dairy cattle commenced with the introduction of nonsurgical embryo recovery in the mid-1970s and developed with the use of nonsurgical transfers in the late 1970s. Numbers of registered Holstein calves from embryo transfer doubled yearly through 1980, after which the rate of increase slowed; the total reached nearly 19,000 calves in 1990. However, the efficacy of superovulation procedures and commercial success rates of transferred fresh embryos have not improved the past 10 to 15 yr. Fertilization rates in superovulated donors remain low. Although embryo-splitting techniques were perfected in the early 1980s, they are not used widely. A practical, commercial embryo-sexing procedure remains unavailable. Recent significant improvement is apparent in the technology of ultrasound-guided oocyte collection and in vitro oocyte maturation, fertilization, and embryo culture. In the future, this technology may be used in conjunction with sperm separated by sex with a flow cytometer. Modest numbers of embryo clones have been produced in several commercial programs via nuclear transfer techniques. However, the efficiency of gene transfer experiments involving ova of cattle and other domestic species has been low. Recently, DNA probe technology has begun to provide genotype information for cattle and will ultimately be applied to embryos.

  8. Food waste-to-energy conversion technologies: current status and future directions.

    Science.gov (United States)

    Pham, Thi Phuong Thuy; Kaushik, Rajni; Parshetti, Ganesh K; Mahmood, Russell; Balasubramanian, Rajasekhar

    2015-04-01

    Food waste represents a significantly fraction of municipal solid waste. Proper management and recycling of huge volumes of food waste are required to reduce its environmental burdens and to minimize risks to human health. Food waste is indeed an untapped resource with great potential for energy production. Utilization of food waste for energy conversion currently represents a challenge due to various reasons. These include its inherent heterogeneously variable compositions, high moisture contents and low calorific value, which constitute an impediment for the development of robust, large scale, and efficient industrial processes. Although a considerable amount of research has been carried out on the conversion of food waste to renewable energy, there is a lack of comprehensive and systematic reviews of the published literature. The present review synthesizes the current knowledge available in the use of technologies for food-waste-to-energy conversion involving biological (e.g. anaerobic digestion and fermentation), thermal and thermochemical technologies (e.g. incineration, pyrolysis, gasification and hydrothermal oxidation). The competitive advantages of these technologies as well as the challenges associated with them are discussed. In addition, the future directions for more effective utilization of food waste for renewable energy generation are suggested from an interdisciplinary perspective. Copyright © 2014 Elsevier Ltd. All rights reserved.

  9. The European ITER Test Blanket Modules: Current status of fabrication technologies development and a way forward

    Energy Technology Data Exchange (ETDEWEB)

    Zmitko, Milan, E-mail: milan.zmitko@f4e.europa.eu [Fusion for Energy (F4E), Josep Pla 2, Barcelona (Spain); Galabert, Jose [Fusion for Energy (F4E), Josep Pla 2, Barcelona (Spain); Thomas, Noël [ATMOSTAT, F-94815 Villejuif (France); Forest, Laurent [CEA-Saclay, DEN, DM2S, SEMT, F-91191 Gif-sur-Yvette (France); Bucci, Philippe; Cogneau, Laurence [CEA-DRT, 38000 Grenoble (France); Rey, Jörg; Neuberger, Heiko [Karlsruhe Institute of Technology (KIT), Postfach 3640, Karlsruhe (Germany); Poitevin, Yves [Fusion for Energy (F4E), Josep Pla 2, Barcelona (Spain)

    2015-10-15

    Highlights: • Significant progress on development of welding procedures for European TBM achieved. • Fabrication processes feasibility based on diffusion and fusion welding demonstrated. • TBM box assembly welding scenarios investigated and welding scenarios identified. • Future qualification of pF/WPS proposed through realization of a number of QMUs. - Abstract: The paper reviews fabrication technologies and procedures applied for manufacturing of the TBM sub-components, like, HCLL and HCPB cooling plates, HCLL/HCPB stiffening plates, and HCLL/HCPB first wall and side caps. The used technologies are based on fusion and diffusion welding techniques taking into account specificities of the EUROFER-97 steel. Development of a standardized procedure complying with professional codes and standards (RCC-MRx), a preliminary fabrication/welding procedure specification (pF/WPS), is described as well as a fabrication and characterization of feasibility mock-ups (FMU) aimed at assessing the suitability of a fabrication process for fulfilling the design and fabrication specifications. Also, fabrication procedures for the TBM box assembly are presently under development through collaboration between European Fusion Laboratories and Industry for the establishment of an optimized assembly sequence/scenario and development of standardized welding procedure specifications. Selection of optimized assembly scenario takes into accounts not only the design requirements and fabrication possibilities/constraints but also maximum accessibility to the welds for sound non-destructive examination in compliance with welds classification. A future approach towards qualification of the developed fabrication technologies and procedures, through a number of medium to full-size qualification mock-ups according to European standards, is outlined before construction of the first TBMs.

  10. Myrrha, Technology Development for the Realisation of ADS in Eu:. Current Status & Prospects for Realisation

    Science.gov (United States)

    Fernandez, R.; Abderrahim, H. Aït; Baeten, P.; de Bruyn, D.; Maes, D.; Mazouzi, A. Al; Ariën, B.; Malambu, E.; Schuurmans, P.; Schyns, M.; Sobolev, V.; van den Eynde, G.; Vandeplassche, D.

    2010-06-01

    The coupling between an accelerator, a spallation target and a subcritical core has been studied for the first time at SCK•CEN in collaboration with Ion Beam Applications (IBA, Louvain-la-Neuve) in the frame of the ADONIS project (1995-1997). ADONIS was a small irradiation facility, based on the ADS concept, having a dedicated objective to produce radioisotopes for medical purposes and more particularly 99Mo as a fission product from highly enriched 235U (HEU) fissile targets. The ad-hoc scientific advisory committee recommended extending the purpose of the ADONIS machine to become a Material Testing Reactor (MTR) for material and fuel research, to study the feasibility of transmutation of the minor actinides and to demonstrate at a reasonable power scale the principle of the ADS. The project, since 1998 named MYRRHA, has then evolved to a larger installation. MYRRHA is now conceived as a flexible irradiation facility, able to work as an Accelerator Driven (subcritical mode) and in critical mode. In this way, MYRRHA will allow fuel developments for innovative reactor systems, material developments for GEN IV systems, material developments for fusion reactors, radioisotope production for medical and industrial applications and industrial applications, such as Si-doping. MYRRHA will also demonstrate the ADS full concept by coupling the three components (accelerator, spallation target and subcritical reactor) at reasonable power level to allow operation feedback, scalable to an industrial demonstrator and allow the study of efficient transmutation of high-level nuclear waste. Since MYRRHA is based on the heavy liquid metal technology, the eutectic lead-bismuth, it will be able to significantly contribute to the development of Lead Fast Reactor Technology. Since MYRRHA will also be operated in critical mode, MYRRHA can even better play the role of European Technology Pilot Plant in the roadmap for LFR.

  11. Development Status-quo of Centrifugal Spinning Technology%离心纺丝技术的发展现状

    Institute of Scientific and Technical Information of China (English)

    黄冬徽; 陈廷; 吴丽莉

    2014-01-01

    离心纺丝是一种利用离心力进行纺丝的新型微纳米纤维制备技术。本文介绍了离心纺丝的基本原理,综述了离心纺丝设备的发展现状,阐述了纺丝过程中工艺参数对纤维的形貌、直径及结晶度的影响。%Centrifugal spinning is a new micro-nano fiber manufacturing technology by the use of centrifugal force. The fundamental principle of centrifugal spinning and development status-quo of the centrifugal spinning equipments were introduced in this paper. Besides, the effects of the process parameters on the morphology, diameter and crystallinity of fibers were stated.

  12. A Status Review of the Commercial Supersonic Technology (CST) Aeroservoelasticity (ASE) Project

    Science.gov (United States)

    Silva, Walter A.; Sanetrik, Mark D.; Chwalowski, Pawel; Funk, Christy; Keller, Donald F.; Ringertz, Ulf

    2016-01-01

    An overview of recent progress regarding the computational aeroelastic and aeroservoelastic (ASE) analyses of a low-boom supersonic configuration is presented. The overview includes details of the computational models developed to date with a focus on unstructured CFD grids, computational aeroelastic analyses, sonic boom propagation studies that include static aeroelastic effects, and gust loads analyses. In addition, flutter boundaries using aeroelastic Reduced-Order Models (ROMs) are presented at various Mach numbers of interest. Details regarding a collaboration with the Royal Institute of Technology (KTH, Stockholm, Sweden) to design, fabricate, and test a full-span aeroelastic wind-tunnel model are also presented.

  13. Status of corrective measures technology for shallow land burial at arid sites

    Science.gov (United States)

    Abeele, W. V.; Nyhan, J. W.; Drennon, B. J.; Lopez, E. A.; Herrera, W. J.; Langhorst, G. J.

    The field research program involving corrective measure technologies for arid shallow land burial sites is described. Soil erosion and infiltration of water into a simulated trench cap with various surface treatments was measured and compared with similar data from agricultural systems across the United States. Report of field testing of biointrusion barriers continues at a closed-out waste disposal site at Los Alamos. Final results of an experiment designed to determine the effects of subsidence on the performance of a cobble-gravel biobarrier system are reported, as well as the results of hydrologic modeling activities involving biobarrier systems.

  14. Toward Production From Gas Hydrates: Current Status, Assessment of Resources, and Simulation-Based Evaluationof Technology and Potential

    Energy Technology Data Exchange (ETDEWEB)

    Reagan, Matthew; Moridis, George J.; Collett, Timothy; Boswell, Ray; Kurihara, M.; Reagan, Matthew T.; Koh, Carolyn; Sloan, E. Dendy

    2008-02-12

    Gas hydrates are a vast energy resource with global distribution in the permafrost and in the oceans. Even if conservative estimates are considered and only a small fraction is recoverable, the sheer size of the resource is so large that it demands evaluation as a potential energy source. In this review paper, we discuss the distribution of natural gas hydrate accumulations, the status of the primary international R&D programs, and the remaining science and technological challenges facing commercialization of production. After a brief examination of gas hydrate accumulations that are well characterized and appear to be models for future development and gas production, we analyze the role of numerical simulation in the assessment of the hydrate production potential, identify the data needs for reliable predictions, evaluate the status of knowledge with regard to these needs, discuss knowledge gaps and their impact, and reach the conclusion that the numerical simulation capabilities are quite advanced and that the related gaps are either not significant or are being addressed. We review the current body of literature relevant to potential productivity from different types of gas hydrate deposits, and determine that there are consistent indications of a large production potential at high rates over long periods from a wide variety of hydrate deposits. Finally, we identify (a) features, conditions, geology and techniques that are desirable in potential production targets, (b) methods to maximize production, and (c) some of the conditions and characteristics that render certain gas hydrate deposits undesirable for production.

  15. An Assessment of the Status of Captive Broodstock Technology of Pacific Salmon, 1995 Final Report.

    Energy Technology Data Exchange (ETDEWEB)

    Flagg, Thomas A.; Mahnaken, Conrad V.W.; Hard, Jeffrey J.

    1995-06-01

    This report provides guidance for the refinement and use of captive broodstock technology for Pacific salmon (Oncorhynchus spp.) by bringing together information on the husbandry techniques, genetic risks, physiology, nutrition, and pathology affecting captive broodstocks. Captive broodstock rearing of Pacific salmon is an evolving technology, as yet without well defined standards. At present, we regard captive rearing of Pacific salmon as problematic: high mortality rates and low egg viability were common in the programs we reviewed for this report. One of the most important elements in fish husbandry is the culture environment itself. Many captive broodstock programs for Pacific salmon have reared fish from smolt-to-adult in seawater net-pens, and most have shown success in providing gametes for recovery efforts. However, some programs have lost entire brood years to diseases that transmitted rapidly in this medium. Current programs for endangered species of Pacific salmon rear most fish full-term to maturity in fresh well-water, since ground water is low in pathogens and thus helps ensure survival to adulthood. Our review suggested that captive rearing of fish in either freshwater, well-water, or filtered and sterilized seawater supplied to land-based tanks should produce higher survival than culture in seawater net-pens.

  16. In Situ Mercury Stabilization (ISMS) Treatment: Technology Maturation Project Phase I Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Kalb,P.D.; Milian, L.

    2008-03-01

    Mercury (Hg) was used to separate lithium-6 isotope for weapons production at the Y-12 Plant in Oak Ridge in the 1950s and 1960s. As much as two million pounds of elemental mercury was 'lost' or unaccounted for and a large portion of that material is believed to have entered the environment. The DOE site office in Oak Ridge has identified Hg pollution in soils, sediments, and streams as the most significant environmental challenge currently faced. In industry, large amounts of mercury have been used to manufacture products (e.g., fluorescent light bulbs, thermometers) and for chemical processing (e.g., production of chlorine and alkali via mercury electrochemical cells) and many of these industrial sites are now polluted with mercury contaminated soil as a result of previous releases and/or inadvertent leaks. Remediation techniques for Hg contaminated soils are either based on thermal desorption and recovery of the mercury or excavation and shipping of large volumes of material to remote facilities for treatment and disposal. Both of these alternatives are extremely costly. The Brookhaven National Laboratory (BNL) Environmental Research & Technology Division (ERTD) has demonstrated, in laboratory-scale experiments, the viability of treating mercury contaminated soils by means of sulfide treatment rods inserted into the soil through a process known as In Situ Mercury Stabilization (ISMS). This approach is partly based on BNL's patented and successfully licensed ex situ process for Hg treatment, Sulfur Polymer Stabilization/Solidification (SPSS) which converts Hg to the more stable sulfide form. The original experiments showed that Hg homogeneously distributed in soil rapidly migrates to form a high concentration zone of chemically stable mercuric sulfide near the treatment rods while concentrations of Hg in surrounding areas away from the treatment rods are depleted to acceptable levels. BSA has subsequently filed for patent protection on the ISMS

  17. Light Water Reactor Sustainability Program Status of Silicon Carbide Joining Technology Development

    Energy Technology Data Exchange (ETDEWEB)

    Shannon M. Bragg-Sitton

    2013-09-01

    Advanced, accident tolerant nuclear fuel systems are currently being investigated for potential application in currently operating light water reactors (LWR) or in reactors that have attained design certification. Evaluation of potential options for accident tolerant nuclear fuel systems point to the potential benefits of silicon carbide (SiC) relative to Zr-based alloys, including increased corrosion resistance, reduced oxidation and heat of oxidation, and reduced hydrogen generation under steam attack (off-normal conditions). If demonstrated to be applicable in the intended LWR environment, SiC could be used in nuclear fuel cladding or other in-core structural components. Achieving a SiC-SiC joint that resists corrosion with hot, flowing water, is stable under irradiation and retains hermeticity is a significant challenge. This report summarizes the current status of SiC-SiC joint development work supported by the Department of Energy Light Water Reactor Sustainability Program. Significant progress has been made toward SiC-SiC joint development for nuclear service, but additional development and testing work (including irradiation testing) is still required to present a candidate joint for use in nuclear fuel cladding.

  18. Human dignity and transhumanism: do anthro-technological devices have moral status?

    Science.gov (United States)

    Jotterand, Fabrice

    2010-07-01

    In this paper, I focus on the concept of human dignity and critically assess whether such a concept, as used in the Universal Declaration on Bioethics and Human Rights, is indeed a useful tool for bioethical debates. However, I consider this concept within the context of the development of emerging technologies, that is, with a particular focus on transhumanism. The question I address is not whether attaching artificial limbs or enhancing particular traits or capacities would dehumanize or undignify persons but whether nonbiological entities introduced into or attached to the human body contribute to the "augmentation" of human dignity. First, I outline briefly how the Universal Declaration on Bioethics and Human Rights uses the concept of dignity. Second, I look at the possibility of a universal bioethics in relation to the concept of human dignity. Third, I examine the concept of posthuman dignity and whether the concept of human dignity as construed in the declaration has any relevance to posthuman dignity.

  19. The development and current status of the technology of isotope and radiation in China

    Energy Technology Data Exchange (ETDEWEB)

    Jinrong, Z. [China Institute of Atomic Energy, Beijing, (China). Department of Isotopes

    1997-10-01

    The research and applications of isotope technology and radiation sources in China are presented. Many effort were directed towards production of radiopharmaceuticals, radiation sources, radiation treatment and radioactive tracers. Reactor and accelerator produced radioisotopes contributed to and will further accelerate the development of nuclear medicine in China. Recently, much attention has been paid on tumor therapy mainly with radiolabelled monoclonal antibody, radiolabelled microsphere and colloid, bone-seeking agents, and radiolabelled Octreotide. Radioimmunoassay has been widely used with many convenient kits available. There are above 30 radioimmunoassay kit produces and more than 60 radioimmunoassay centers. Recently the advance is mainly in solid-phase separation process and in radioimmunoassay method, including some nonradioactive immunoassay methods, such as enzyme immunoassay, fluorescence immunoassay, and chemiluminescence immunoassay. Kits for enzyme immunoassay have been put into clinical use. Various radiation sources are produced for medical purposes and for use in nuclear power stations 4 refs., 8 tabs.

  20. Current Status of World Nuclear Fuel Cycle Technology (I): Canada and Latin America

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Hang Bok; Ko, Won Il

    2007-05-15

    Canada produces about one third of the world's uranium mine output, most of it from two new mines. After 2007 Canadian production is expected to increase further as more new mines come into production. About 15% of Canada's electricity comes from nuclear power, using indigenous technology, and 18 reactors provide over 12,500 MWe of power. Mexico has two nuclear reactors generating almost 5% of its electricity. Its first commercial nuclear power reactor began operating in 1989. There is some government support for expanding nuclear energy to reduce reliance on natural gas. Argentina has two nuclear reactors generating nearly one tenth of its electricity. Its first commercial nuclear power reactor began operating in 1974. Brazil has two nuclear reactors generating 4% of its electricity. Its first commercial nuclear power reactor began operating in 1982.

  1. Heat-shield for Extreme Entry Environment Technology (HEEET) Development Status

    Science.gov (United States)

    Venkatapathy, Ethiraj; Ellerby, Don; Gage, Peter

    2016-01-01

    The Heat shield for Extreme Entry Environment Technology (HEEET) Project is a NASA STMD and SMD co-funded effort. The goal is to develop and mission infuse a new ablative Thermal Protection System that can withstand extreme entry. It is targeted to support NASA's high priority missions, as defined in the latest decadal survey, to destinations such as Venus and Saturn in-situ robotic science missions. Entry into these planetary atmospheres results in extreme heating. The entry peak heat-flux and associated pressure are estimated to be between one and two orders of magnitude higher than those experienced by Mars Science Laboratory or Lunar return missions. In the recent New Frontiers community announcement NASA has indicated that it is considering providing an increase to the PI managed mission cost (PIMMC) for investigations utilizing the Heat Shield for Extreme Entry Environment Technology (HEEET) and in addition, NASA is considering limiting the risk assessment to only their accommodation on the spacecraft and the mission environment. The HEEET ablative TPS utilizes 3D weaving technology to manufacture a dual layer material architecture. The 3-D weaving allows for flat panels to be woven. The dual layer consists of a top layer designed to withstand the extreme external environment while the inner or insulating layer by design, is designed to achieve low thermal conductivity, and it keeps the heat from conducting towards the structure underneath. Both arc jet testing combined with material properties have been used to develop thermal response models that allows for comparison of performance with heritage carbon phenolic. A 50% mass efficiency is achieved by the dual layer construct compared to carbon phenolic for a broad range of missions both to Saturn and Venus. The 3-D woven flat preforms are molded to achieve the shape as they are compliant and then resin infusion with curing forms a rigid panels. These panels are then bonded on to the aeroshell structure. Gaps

  2. Regenerative medicine technology applied to gastroenterology: Current status and future perspectives

    Institute of Scientific and Technical Information of China (English)

    Giuseppe Orlando

    2012-01-01

    This special issue of World Journal of Gastroenterology has been conceived to illustrate to gastroenterology operators the role that regenerative medicine (RM) will have in the progress of gastrointestinal (GI) medicine.RM is a multidisciplinary field aiming to replace,regenerate or repair diseased tissues or organs.The past decade has been marked by numerous ground-breaking achievements that led experts in the field to manufacture functional substitutes of relatively simple organs.This progress is paving the ground for investigations that aims to the bioengineering and regeneration of more complex organs like livers,pancreas and intestine.In this special issue,the reader will be introduced,hand-in-hand,to explore the field of RM and will be educated on the progress,pitfalls and promise of RM technologies as applied to GI medicine.

  3. Evidence-Based Point-of-Care Diagnostics: Current Status and Emerging Technologies

    Science.gov (United States)

    Chan, Cangel Pui Yee; Mak, Wing Cheung; Cheung, Kwan Yee; Sin, King Keung; Yu, Cheuk Man; Rainer, Timothy H.; Renneberg, Reinhard

    2013-06-01

    Point-of-care (POC) diagnostics brings tests nearer to the site of patient care. The turnaround time is short, and minimal manual interference enables quick clinical management decisions. Growth in POC diagnostics is being continuously fueled by the global burden of cardiovascular and infectious diseases. Early diagnosis and rapid initiation of treatment are crucial in the management of such patients. This review provides the rationale for the use of POC tests in acute coronary syndrome, heart failure, human immunodeficiency virus, and tuberculosis. We also consider emerging technologies that are based on advanced nanomaterials and microfluidics, improved assay sensitivity, miniaturization in device design, reduced costs, and high-throughput multiplex detection, all of which may shape the future development of POC diagnostics.

  4. Status on Technology Development of Optic Fiber-Coupled Laser Ignition System for Rocket Engine Applications

    Science.gov (United States)

    Trinh, Huu P.; Early, Jim; Osborne, Robin; Thomas, Matthew; Bossard, John

    2003-01-01

    To pursue technology developments for future launch vehicles, NASA/Marshall Space Flight Center (MSFC) is examining vortex chamber concepts for liquid rocket engine applications. Past studies indicated that the vortex chamber schemes potentially have a number of advantages over conventional chamber methods. Due to the nature of the vortex flow, relatively cooler propellant streams tend to flow along the chamber wall. Hence, the thruster chamber can be operated without the need of any cooling techniques. This vortex flow also creates strong turbulence, which promotes the propellant mixing process. Consequently, the subject chamber concept: not only offer system simplicity, but also enhance the combustion performance. Test results have shown that chamber performance is markedly high even at a low chamber length-to-diameter ratio. This incentive can be translated to a convenience in the thrust chamber packaging.

  5. International activities in DMFC R&D: status of technologies and potential applications

    Science.gov (United States)

    Dillon, R.; Srinivasan, S.; Aricò, A. S.; Antonucci, V.

    Technological improvements in direct methanol fuel cells (DMFCs) are fuelled by their exciting possibilities in portable, transportation and stationary applications. In this paper, a synopsis of the worldwide efforts resulting in inventions of a plethora of DMFC prototypes with low, medium and high power capacities by a number of Companies, Research Institutions and Universities is presented. The most promising short term application of DMFCs appears to involve the field of portable power sources. Recent advances in the miniaturization technology of DMFCs devices make these systems attractive to replace the current Li-ion batteries. In the field of electrotraction recent demonstration of DMFC stacks with specific power densities and efficiencies approaching those of the combined system methanol reformer-polymer electrolyte fuel cell (PEMFC) have stimulated further investigation on the development of materials with higher performance and lower cost. The most appropriate range of operation temperatures for applications in transportation appears to lie between 100 and 150 °C. These operating conditions may be sustained by using new high temperature electrolyte membranes or composite perfluorosulfonic membranes containing inorganic materials with water retention properties at high temperature. The most challenging problem for the development of DMFCs is the enhancement of methanol oxidation kinetics. At present, there are no practical alternatives to Pt-based catalysts. High noble metal loading on the electrodes and the use of perfluorosulfonic membranes significantly contribute to the cost of these devices. Critical areas include the design of appropriate membrane electrode assemblies for specific DMFC applications and the reduction of methanol cross-over. This latter aspect is strictly related to the use of membrane alternatives to Nafion, but it may also be conveniently addressed by the development of methanol-tolerant oxygen reduction catalysts.

  6. High energy physics advisory panel`s composite subpanel for the assessment of the status of accelerator physics and technology

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-05-01

    In November 1994, Dr. Martha Krebs, Director of the US Department of Energy (DOE) Office of Energy Research (OER), initiated a broad assessment of the current status and promise of the field of accelerator physics and technology with respect to five OER programs -- High Energy Physics, Nuclear Physics, Basic Energy Sciences, Fusion Energy, and Health and Environmental Research. Dr. Krebs asked the High Energy Physics Advisory Panel (HEPAP) to establish a composite subpanel with representation from the five OER advisory committees and with a balance of membership drawn broadly from both the accelerator community and from those scientific disciplines associated with the OER programs. The Subpanel was also charged to provide recommendations and guidance on appropriate future research and development needs, management issues, and funding requirements. The Subpanel finds that accelerator science and technology is a vital and intellectually exciting field. It has provided essential capabilities for the DOE/OER research programs with an enormous impact on the nation`s scientific research, and it has significantly enhanced the nation`s biomedical and industrial capabilities. Further progress in this field promises to open new possibilities for the scientific goals of the OER programs and to further benefit the nation. Sustained support of forefront accelerator research and development by the DOE`s OER programs and the DOE`s predecessor agencies has been responsible for much of this impact on research. This report documents these contributions to the DOE energy research mission and to the nation.

  7. A review on the current status and production technology for {sup 188}W-{sup 188}Re generator system

    Energy Technology Data Exchange (ETDEWEB)

    Kuznetsov, R. A.; Han, H. S.; Cho, W. K.; Park, U. J.; Kim, Y. M

    1998-11-01

    The current status of {sup 188}W-{sup 188}Re generator production technology were reviewed in PART 1. Main interests were given to the aspects of {sup 188}W reactor production, irradiated targets reprocessing and generator loading technologies, such as alumina type and gel type generators. In order to develop the more convenient and advanced {sup 188}W-{sup 188}Re generator, further studies must be carried out to get the precise evaluation of production and burn-up cross section of {sup 188}W, the more easily realizable generator loading procedure, and also to optimize the column and generator design to compensate the deterioration of generator performance because of parent radionuclide decay. By irradiation of {sup 186}W enriched sample, {sup 188}W-{sup 188}Re generator production experiments were performed to evaluate the possibility of {sup 188}W-{sup 188}Re generator production using HANARO, and PART 2 describes about the experiments. The experimental results shows the possibility of practical {sup 188}W-{sup 188}Re generator production using of low-specific activity {sup 188}W produced in HANARO. (author). 79 refs., 4 tabs., 26 figs.

  8. Application and Research Status of Alternative Materials for 3D-printing Technology

    Directory of Open Access Journals (Sweden)

    WANG Yanqing

    2016-08-01

    Full Text Available Application features and research status of alternative 3D-printing materials for six typical 3D-printingtechniques were reviewed. From the point of view of physical forms, four kinds of materials of liquid photosensitive resin material, thin sheet material (paper or plastic film , low melting point filament material and powder material are included. And from the composition point of view, nearly all kinds of materials in the production and life are included such as polymer materials: plastic, resin, wax; metal and alloy materials; ceramic materials. Liquid photosensitive resin material is used for stereo lithigraphy apparatus(SLA; thin sheet materials such as paper or plastic film are used for laminated object manufacturing(LOM; low melting point polymer filament materials such as wax filament, polyolefin resin filament, polyamide filament and ABS filament are used for fused deposition modeling(FDM; very wide variety powder materials including nylon powder, nylon-coated glass powder, polycarbonate powder, polyamide powder, wax powder, metal powder(Re-sintering and infiltration of copper are needed after sintering, wax-coated ceramic powder, wax-coated metal powder and thermosetting resin-coated fine sand are used for selective laser sintering(SLS. Nearly the same above powder materials are used for selective laser melting(SLM, but the printed parts own much more higher density and better mechanical properties. Powder materials are likewise used for threedimensional printing and gluing(3DP, however, the powders are stuck together by tricolor binder sprayed through nozzle and cross-section shape of the part is color-printed on it. Finally, the development direction in both quality and the yield of 3D-printing materials were pointed out to be a bottle-neck issue and a hot topic in the field of 3D-printing.

  9. Research status of the manufacturing technology and application properties of Bi-2223/Ag tapes at Innost

    Science.gov (United States)

    Yi, H. P.; Han, Z.; Zhang, J. S.; Liu, T.; Liu, L.; Li, M. Y.; Fang, J.; Liu, Q.; Zheng, Y. K.

    2004-10-01

    The first production line of Bi-2223/Ag tapes in China has been installed in the end of 2001 with an annual production capacity of 200 km at Innova Superconductor Technology Co., Ltd. (Innost). Bi-2223/Ag tapes can be manufactured reproducibly with length up to 1 km, critical current Ic over 90 A (77 K, 0 T) and engineering critical current density Je over 9 kA/cm 2. Innost's Bi-2223/Ag tapes are being used for producing China's first HTS power cable system (30 m, 3 phase, 35 kV/25 kA), which will be put into trial operation next year. Also, Innost's products will be used for other research projects of HTS applications such as HTS motor, HTS magnet and HTS transformer in China. In order to meet the requirements of HTS applications, tremendous research efforts have been made not only in enhancing the performance and uniformity of the Bi-2223/Ag tapes, but also in improving their application properties, which include reducing AC losses and thermal conductivity, increasing insulating properties and so on. Methods for improving productivity and yield will be also introduced.

  10. A status of the activities of the NASA/MSFC pump stage technology team

    Science.gov (United States)

    Garcia, R.; Williams, R.; Dakhoul, Y.

    1992-01-01

    The Consortium for Computational Fluid Dynamics (CFD) Application in Propulsion Technology was established to aid the transfer of CFD related advancements among academia, government agencies, and industry. The specific goals of the Consortium are to develop CFD methodologies necessary to solve propulsion problems, to validate these methodologies, and to apply these methodologies in the design process. To accomplish these goals, a team of experts in various related fields was formed, a schedule of activities necessary to meet the goals was generated, and funding for the activities was obtained from NASA. During the past year (Mar. 1991 - Mar. 1992) the team's activities have focused on preliminary code validation and on the design of an advanced impeller. Six codes were used to calculate the flow in a Rocketdyne 0.3 flow coefficient inducer, and the results were compared to L2F data available for the inducer. This activity identified shortcomings in the experimental data sets and in the analytical solutions which must be surmounted in any future team activity. The design of the advanced impeller relied heavily on CFD results to obtain an optimized geometry. The optimized geometry was analyzed using four different codes, at design and off-design conditions. Activities for the next year include the optimization of a tandem blade impeller design, benchmark of CFD codes for diffuser and volute flows, the collection of L2F data for 'state-of-the-art' impeller and inducer, and the verification of the advanced pump team impeller design in a water rig.

  11. Effectiveness of sloping agricultural land technology on soil fertility status of mid-hills in Nepal

    Institute of Scientific and Technical Information of China (English)

    Kiran Lamichhane

    2013-01-01

    Hedgerows with intercropping systems were established at the ICIMOD test and demonstration site at Godawari to assess the effective-ness of Sloping Agricultural Land Technology (SALT) in reducing run-off water volume, controlling soil loss, increasing crop production, and improving soil fertility in the mid-hills of Nepal. Runoff water volume (1996-2002), soil loss (1996-2002) and maize yield (1995-2001), and soil fertility-related parameters were assessed on SALT models with three factors:the type of nitrogen-fixing plant, the farmers’ practice, and fertilizer use. Results showed a significant effect of Alnus nepalensis and/or Indigofera dosua on runoff water volume, soil loss, crop produc-tion, soil water retention, and soil nutrients (NPK). Farmers’ practice and fertilization did not play a significant role in reducing runoff water and soil loss. However, farmers’ practice significantly increased crop produc-tion. Therefore, integrating soil conservation approaches on SALT sys-tems enhances stable economic output to hills and mountain farmers.

  12. The analysis on the current status of the overseas recycle technology of the metallic radioactive wastes

    Energy Technology Data Exchange (ETDEWEB)

    Shin, Jae In; Kim, Hee Reyoung; Jung, Kee Jung

    2002-05-01

    It was understood that regulation criteria for material release varied with countries and that international standards were not setup. But, most advanced countries are continuously studying on the recycling of metallic wastes for the purpose of the reuse of resources and disposal cost reduction. Practically, the advanced countries make a lot of cost profits compared with disposal as their metallic wastes are recycled and reused through technology like melting. The reasonable international standards are also expected to be set in the near future because of the aggressive cooperation between international agencies such as IAEA and NEA toward recycling these wastes. In our case, the recycle criteria for radioactive waste containing radioactive nuclide with long half-life such as Cs-137(half-life: 30y) and Co-60(half-life: 5.26y) including others, which are generated from the nuclear fission or dismantling of nuclear facilities, are not yet established. Therefore, it is required that the recommendation and legalization of the regulatory criteria be carried out for the recycle and reuse of metallic wastes to be generated from the dismantling of domestic nuclear facilities in the future.

  13. Near infrared optical technologies to illuminate the status of the neonatal brain.

    Science.gov (United States)

    Liao, Steve M; Culver, Joseph P

    2014-01-01

    The neurodevelopmental outcome of at-risk infants in the neonatal intensive care unit (NICU) is concerning despite steady improvement in the survival rate of these infants. Our current management is often complicated by delayed realization of cerebral deficits due to late manifestation and lack of effective screening tools and neuroimaging/monitoring techniques that are suitable for sick neonates at the bedside. Near infrared specstrocopy (NIRS) is a noninvasive, safe, and portable technique providing a wide range of cerebral hemodynamic contrasts for evaluating the brain. The current state of NIRS technology can be devided into three generations. The first generation represents conventional trend monitoring oximeters that are currently the most widely used in the clinical settings, while the second generation focuses on improving the quantitive accuracy of NIRS measurements by advanced optical techniques. The emergence of diffuse optical imaging (DOI) represents a third generation which opens up more potential clinical applications by providing regional comparisons of brain oximetry and functions either at rest or in response to interventions. Successful integration of NIRS/DOI into the clinical setting requires matching the different capabilities of each instrument to specific clinical goals.

  14. Hanford Permanent Isolation Barrier Program: Asphalt technology data and status report - FY 1994

    Energy Technology Data Exchange (ETDEWEB)

    Freeman, H.D.; Romine, R.A.; Zacher, A.H.

    1994-09-01

    The asphalt layer within the Hanford Permanent Isolation Barrier (HPIB) is an important component of the overall design. This layer provides a RCRA equivalent backup to the overlying earthen layers in the unlikely event that these layers are not able to reduce the infiltration rate to less than 0.05 cm/yr. There is only limited amount of information on using asphalt for a moisture infiltration barrier over the long times required by the HPIB. Therefore, a number of activities are under way, as part of the Barrier Development Program, to obtain data on the performance of asphalt as a moisture barrier in a buried environment over a 1000-year period. These activities include (1) determining RCRA equivalency, (2) measurement of physical properties, (3) measurement of aging characteristics, and (4) relationship to ancient asphalt analogs. During FY 1994 progress was made on all of these activities. Studies were conducted both in the laboratory and on the prototype barrier constructed over the 216-B-57 crib in the 200 East Area on the Hanford Site. This report presents results obtained from the asphalt technology tasks during FY 1994. Also included are updates to planned activities for asphalt analogs and monitoring the asphalt test pad near the prototype barrier. Measurements of hydraulic conductivity on the HMAC portion of the prototype barrier show that the asphalt layers easily meet the RCRA standard of 1 {times} 10{sup -7} cm/s. In-place measurements using a new field falling head technique show an average of 3.66 {times} 10{sup -8} cm/s, while cores taken from the north end of the prototype and measured in a laboratory setup averaged 1.29 {times} 10{sup -9} cm/s. Measurements made on the fluid applied asphalt membrane (polymer-modified asphalt) show an extremely low permeability of less than 1 {times} 10{sup -11} cm/s.

  15. Analysis of the oxido-redox status of plasma proteins. Technology advances for clinical applications.

    Science.gov (United States)

    Bruschi, Maurizio; Candiano, Giovanni; Della Ciana, Leopoldo; Petretto, Andrea; Santucci, Laura; Prunotto, Marco; Camilla, Roberta; Coppo, Rosanna; Ghiggeri, Gian Marco

    2011-05-15

    Reactive oxygen species (ROS) are potentially implicated in renal pathology. Direct evidence is available for animal models of glomerulonephritis but the demonstration of ROS implication in human diseases is only circumstantial and requires further experimental support. One problem limiting any evolution is the brief life of ROS (in terms of milliseconds) that makes it difficult their direct detection 'in vivo'. An alternative is to look at the products of oxidation of proteins that remain in blood as a signature of ROS activity. Recent data have shown the presence of oxidation products of albumin (sulfonic (34)Cys albumin) in serum of patients with focal-glomerulosclerosis, that is a primary glomerular diseases causing nephrotic syndrome. Structural studies based on spectroscopy and calorimetry strengthened the relevance of oxidation of the unique free SH groups of (34)Cys for conformation of albumin, in analogy with what already reported for other proteins. In this review, we present new developments on technologies for the detection of the oxido-redox potential of proteins that are based on the concept that oxidation is inversely correlated with their free content of sulphydryl groups. We describe, in particular, two new iodoacetamide-substituted cyanines that have been developed for labelling sulphydryl groups and can be utilized as stable dyes prior mono- and bi-dimensional electrophoresis. Proteins with low binding with iodoacetamide-cyanines may be considered as surrogate biomarkers of ROS activity. Standardization of these techniques and their acquisition in more laboratories would enable clinicians to plan screening studies on ROS in human diseases.

  16. Toward production from gas hydrates: Current status, assessment of resources, and simulation-based evaluation of technology and potential

    Science.gov (United States)

    Moridis, G.J.; Collett, T.S.; Boswell, R.; Kurihara, M.; Reagan, M.T.; Koh, C.; Sloan, E.D.

    2009-01-01

    Gas hydrates (GHs) are a vast energy resource with global distribution in the permafrost and in the oceans. Even if conservative estimates are considered and only a small fraction is recoverable, the sheer size of the resource is so large that it demands evaluation as a potential energy source. In this review paper, we discuss the distribution of natural GH accumulations, the status of the primary international research and development (R&D) programs, and the remaining science and technological challenges facing the commercialization of production. After a brief examination of GH accumulations that are well characterized and appear to be models for future development and gas production, we analyze the role of numerical simulation in the assessment of the hydrate-production potential, identify the data needs for reliable predictions, evaluate the status of knowledge with regard to these needs, discuss knowledge gaps and their impact, and reach the conclusion that the numerical-simulation capabilities are quite advanced and that the related gaps either are not significant or are being addressed. We review the current body of literature relevant to potential productivity from different types of GH deposits and determine that there are consistent indications of a large production potential at high rates across long periods from a wide variety of hydrate deposits. Finally, we identify (a) features, conditions, geology and techniques that are desirable in potential production targets; (b) methods to maximize production; and (c) some of the conditions and characteristics that render certain GH deposits undesirable for production. Copyright ?? 2009 Society of Petroleum Engineers.

  17. Differences in Student Information and Communication Technology Literacy Based on Socio-Economic Status, Ethnicity, and Gender: Evidence of a Digital Divide in Florida Schools

    Science.gov (United States)

    Ritzhaupt, Albert D.; Liu, Feng; Dawson, Kara; Barron, Ann E.

    2013-01-01

    This research examines student information and communication technology (ICT) literacy and its relationships to a student's socio-economic status (SES), gender, and ethnicity of middle school students. We recruited 5,990 students from 13 school districts across the state of Florida. Student participants completed the Student Tool for Technology…

  18. 加氢处理技术的现状与发展趋势%Status Quo and Development Trends of Hydrotreating Technology

    Institute of Scientific and Technical Information of China (English)

    刘立军; 卜岩; 侯娜; 马艳秋

    2011-01-01

    Hydrotreating is one of important processing technologies in modern refining industry. In this paper, driving forces of hydrotreating technologies development were discussed, status quo and development trend of hydrotreating technologies were summarized from the aspect of hydrotreating catalyst and process.%加氢处理是现代石油炼制工业的重要加工过程之一.讨论了加氢处理技术发展的推动因素,并从工艺和催化剂两方面对加氧处理技术的现状和发展趋势做了简要评述.

  19. Ground-Source Integrated Heat Pump for Near-Zero Energy Houses: Technology Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Murphy, Richard W [ORNL; Rice, C Keith [ORNL; Baxter, Van D [ORNL; Craddick, William G [ORNL

    2007-09-01

    The energy service needs of a net-zero-energy house (ZEH) include space heating and cooling, water heating, ventilation, dehumidification, and humidification, depending on the requirements of the specific location. These requirements differ in significant ways from those of current housing. For instance, the most recent DOE buildings energy data (DOE/BED 2007) indicate that on average {approx}43% of residential buildings primary energy use is for space heating and cooling, vs. {approx}12% for water heating (about a 3.6:1 ratio). In contrast, for the particular prototype ZEH structures used in the analyses in this report, that ratio ranges from about 0.3:1 to 1.6:1 depending on location. The high-performance envelope of a ZEH results in much lower space heating and cooling loads relative to current housing and also makes the house sufficiently air-tight to require mechanical ventilation for indoor air quality. These envelope characteristics mean that the space conditioning load will be closer in size to the water heating load, which depends on occupant behavior and thus is not expected to drop by any significant amount because of an improved envelope. In some locations such as the Gulf Coast area, additional dehumidification will almost certainly be required during the shoulder and cooling seasons. In locales with heavy space heating needs, supplemental humidification may be needed because of health concerns or may be desired for improved occupant comfort. The U.S. Department of Energy (DOE) has determined that achieving their ZEH goal will require energy service equipment that can meet these needs while using 50% less energy than current equipment. One promising approach to meeting this requirement is through an integrated heat pump (IHP) - a single system based on heat pumping technology. The energy benefits of an IHP stem from the ability to utilize otherwise wasted energy; for example, heat rejected by the space cooling operation can be used for water heating

  20. Analysis and results to the status of BIM technology application in China%分析和总结BIM技术应用在中国的地位

    Institute of Scientific and Technical Information of China (English)

    Yong-Ge Xu; Dong-Wang

    2014-01-01

    Information age and the rapid development of information technology has brought the infinite creativity and possibility for all works in modern society. If CAD technology is first innovation of information technology in construction industry, then the emergence of the BIM technology shall fully deserved to be treated as a second innovation in construction industry. As a new technology which have been introduced to China in recent years, BIM technology already had its major application in foreigner countries .This paper focuses on the current status of BIM technology application in our country, especially on some small and medium enterprises using the traditional BIM technology to handle the project which have complex usage,creative deign and cost limitation. Firstly,we take a deep analysis on the initial application situation. Then we go through the practical application and analyse what benefit can be given to a project from BIM technology. Finally, analyse the problems and solutions in BIM application with consideration of Chinese building engineering development. Only after a careful analysis, a deep understanding of BIM, we can fully understand this new technology and make BIM to give its value to construction project.

  1. On-line monitoring of milk electrical conductivity by fuzzy logic technology to characterise health status in dairy goats

    Directory of Open Access Journals (Sweden)

    Mauro Zaninelli

    2014-04-01

    Full Text Available Intramammary infection affects the quality and quantity of dairy goat milk. Health status (HS and milk quality can be monitored by electrical conductivity (EC. The aim of the study was to determine the detection potential of EC when measured on-line on a daily basis and compared with readings from previous milkings. Milk yields (MYs were investigated with the same approach. To evaluate these relative traits, a multivariate model based on fuzzy logic technology – which provided interesting results in cows – was used. Two foremilk samples from 8 healthy Saanen goats were measured daily over the course of six months. Bacteriological tests and somatic cells counts were used to define the HS. On-line EC measurements for each gland and MYs were also considered. Predicted deviations of EC and MY were calculated using a moving-average model and entered in the fuzzy logic model. The reported accuracy has a sensitivity of 81% and a specificity of 69%. Conclusions show that fuzzy logic is an interesting approach for dairy goats, since it offered better accuracy than other methods previously published. Nevertheless, specificity was lower than in dairy cows, probably due to the lack of a significant decrease of MY in diseased glands. Still, results show that the detection of the HS characteristics with EC is improved, when measured on-line, daily and compared with the readings from previous milkings.

  2. Environmental Interactions Technology Status

    Science.gov (United States)

    1986-10-01

    This means that the cCi lI1a 2 ctl ahe Lised as I radiator , even wheni it fa Ics thle sun. U nforti.unately, the oxide’s ah,)ipmce Of solair energy...GROUP SUB-GROUP .- pacecratt L:nvironmenta Interctions,, ,paeecran nrk,-[,"dgto Analysis,’ Meteoroid/E s Impacts, -Solar Radiation ; Single Event Upsets...assessed, and rated for research maturity and system impact. The seven environment categories are: Plasma, High-Energy Radiation , Neutral Particles

  3. Gasification - Status and technology

    Energy Technology Data Exchange (ETDEWEB)

    Held, Joergen

    2012-06-15

    In this report gasification and gas cleaning techniques for biomass are treated. The main reason for gasifying biomass is to refine the fuel to make it suitable for efficient CHP production, as vehicle fuel or in industrial processes. The focus is on production of synthesis gas that can be used for production of vehicle fuel and for CHP production. Depending on application different types of gasifiers, gasification techniques and process parameters are of interest. Two gasification techniques have been identified as suitable for syngas generation, mainly due to the fact that they allow the production of a nitrogen free gas out of the gasifier; Indirect gasification and pressurized oxygen-blown gasification For CHP production there are no restrictions on the gas composition in terms of nitrogen and here air-blown gasification is of interest as well. The main challenge when it comes to gas cleaning is related to sulphur and tars. There are different concepts and alternatives to handle sulphur and tars. Some of them are based on conventional techniques with well-proven components that are commercially available while others, more advantageous solutions, still need further development.

  4. Analysis on the Current Status of Chemical Decontamination Technology of Steam Generators in the Oversea Nuclear Power Plants (NPPs)

    Energy Technology Data Exchange (ETDEWEB)

    Yoon, Taebin; Kim, Sukhoon; Kim, Juyoul; Kim, Juyub; Lee, Seunghee [FNC Technology Co. Ltd., Yongin (Korea, Republic of)

    2015-10-15

    The steam generators in Hanbit Unit 3 and 4 are scheduled to be replaced in 2018 and 2019, respectively. Nevertheless, the wastes from the dismantled steam generators are currently just on-site stored in the NPP because there are no disposal measures for the waste and lack of the decontamination techniques for large-sized metallic equipment. In contrast, in the oversea NPPs, there are many practical cases of chemical decontamination not only for oversized components in the NPPs such as reactor pressure vessel and steam generator, but also for major pipes. Chemical decontamination technique is more effective in decontaminating the components with complicated shape compared with mechanical one. Moreover, a high decontamination factor can be obtained by using strong solvent, and thereby most of radionuclides can be removed. Due to these advantages, the chemical decontamination has been used most frequently for operation of decontaminating the large-sized equipment. In this study, an analysis on the current status of chemical decontamination technique used for the steam generators of the foreign commercial NPPs was performed. In this study, the three major chemical decontamination processes were reviewed, which are applied to the decommissioning process of the steam generators in the commercial NPPs of the United States, Germany, and Belgium. The three processes have the different features in aspect of solvent, while those are based in common on the oxidation and reduction between the target metal surface and solvents. In addition, they have the same goals for improving the decontamination efficiency and decreasing the amount of the secondary waste generation. Based on the analysis results on component sub-processes and major advantages and disadvantages of each process, Table 2 shows the key fundamental technologies for decontamination of the steam generator in Korea and the major considerations in the development process of each technology. It is necessary to prepare

  5. Technology Status and Expected Greenhouse Gas Emissions of Battery, Plug-In Hybrid, and Fuel Cell Electric Vehicles

    Science.gov (United States)

    Lipman, Timothy E.

    2011-11-01

    Electric vehicles (EVs) of various types are experiencing a commercial renaissance but of uncertain ultimate success. Many new electric-drive models are being introduced by different automakers with significant technical improvements from earlier models, particularly with regard to further refinement of drivetrain systems and important improvements in battery and fuel cell systems. The various types of hybrid and all-electric vehicles can offer significant greenhouse gas (GHG) reductions when compared to conventional vehicles on a full fuel-cycle basis. In fact, most EVs used under most condition are expected to significantly reduce lifecycle GHG emissions. This paper reviews the current technology status of EVs and compares various estimates of their potential to reduce GHGs on a fuel cycle basis. In general, various studies show that battery powered EVs reduce GHGs by a widely disparate amount depending on the type of powerplant used and the particular region involved, among other factors. Reductions typical of the United States would be on the order of 20-50%, depending on the relative level of coal versus natural gas and renewables in the powerplant feedstock mix. However, much deeper reductions of over 90% are possible for battery EVs running on renewable or nuclear power sources. Plug-in hybrid vehicles running on gasoline can reduce emissions by 20-60%, and fuel cell EV reduce GHGs by 30-50% when running on natural gas-derived hydrogen and up to 95% or more when the hydrogen is made (and potentially compressed) using renewable feedstocks. These are all in comparison to what is usually assumed to be a more advanced gasoline vehicle "baseline" of comparison, with some incremental improvements by 2020 or 2030. Thus, the emissions from all of these EV types are highly variable depending on the details of how the electric fuel or hydrogen is produced.

  6. Research Status of Science and Technology Innovation in General Hospitals in China%我国综合性医院科技创新研究现状

    Institute of Scientific and Technical Information of China (English)

    严汪龙; 赵兴海; 汤敏

    2016-01-01

    科技创新是综合性医院提高核心竞争力的重要保证。本文详细阐述了综合性医院科技创新的重要性,通过文献研究,对国内医院科技创新如知识创新、技术创新、科技创新体系构建与科技创新能力评价等方面的研究现状进行归纳总结,找出目前研究的不足之处,为医院科技创新研究提供新的思路。%Science and technology innovation is an important guarantee to improve the core competitiveness of the general hospital.Chinese scholars have done a lot of research about knowledge innovation, technological innovation, construction of innovation system of science and tech-nology and evaluation of innovation ability of science and technology in hospitals, enriching the theory of science and technology innovation re-search.In this paper, the importance of Science and technology innovation of the hospital is discussed.The author summarized the domestic re-search status of science and technology innovation in hospitals by literature study, found out the deficiencies of the current research and points to be improved, to provide new ideas for the study of science and technology innovation.

  7. The Status Quo and the Development of Mechatronics Technology%机电一体化技术的现状与发展趋势

    Institute of Scientific and Technical Information of China (English)

    张葆青; 闫石; 陈爽

    2011-01-01

    介绍了我国机电一体化技术的发展现状和未来的发展趋势,并简单介绍了机电一体化技术主要应用的几个方面,对机电一体化的核心技术进行了简要的介绍.%The development status quo and the trend of development of meehatronics technology in our country were introduced. Some main application aspects and the core technology of mechatronics were briefly introduced.

  8. Domestic Development Status of Repair Technology of Submarine Pipelines%海底管道修复技术及我国的发展状况

    Institute of Scientific and Technical Information of China (English)

    陈晨; 陈社鹏; 谷风涛

    2015-01-01

    The classification, cause of damage and repair technology of the submarine pipelines are described. The development goals of the repair technology of the submarine pipelines are proposed according to its domestic development status.%阐述了海底管道的分类、 损坏原因及修复方法. 针对目前国内海底管道维修技术的现状, 提出了海底管道维修技术的发展目标.

  9. 变频技术在制冷压缩机领域中的应用现状%Application Status of Inverter Technology Applied in Refrigeration Compressor

    Institute of Scientific and Technical Information of China (English)

    吕肖; 邹伟; 徐立军

    2015-01-01

    The basic principle and classification of inverter technology are introduced , especially its application and development status in refrigeration compressors , and prospects for its development .%本文概述了变频技术的基本原理和分类,重点介绍其在制冷压缩机中的应用和发展现状,并对其前景进行了展望。

  10. 氯化聚氯乙烯的生产现状及技术发展方虚%Production status and technology development direction of CPVC

    Institute of Scientific and Technical Information of China (English)

    骆雁

    2011-01-01

    介绍了氯化聚氯乙烯生产技术的国内外现状及差距。分析了氯化聚氯乙烯下游产品的应用前景并提出了发展建议。%The production status and technology gap of CPVC were introduced.The application prospect of downstream product of CPVC were analysed, and development suggestions were put forward.

  11. 舰艇惯性导航技术现状及发展趋势%Status Quo and Trends of Marine Inertial Navigation Technology

    Institute of Scientific and Technical Information of China (English)

    刘飞; 马林

    2011-01-01

    讲述了国内外海军舰艇用惯性导航技术的现状,分析并预测了发展趋势.简述了“舰艇用惯性导航技术”的技术特点和使用需求特点,从惯性敏感器技术和系统技术两个方面对“惯性导航系统”产品进行了分类.通过阐述技术特点与不同使用需求之间的对应关系,探寻技术发展方向;并以国内外舰艇惯性导航技术发展的历程进行佐证.%The status of domestic and overseas marine inertial navigation technology is introduced and the development trends of the technology are analyzed and forecasted, the characteristics and requirements in the use of marine inertial navigation technology are described. The productions of inertial navigation system are classified from inertial sensors technology and inertial navigation system technology. The correct development direction is selected by means of exactly grasping the characteristic of technology and the corresponding connection of the different requirements. The directions of development are clarified by retrospect of the development course of marine inertial navigation technology.

  12. Status of environmental technology; Interim Report to the sector study 'Petroleum and Energy', the integrated management plan for North Sea. Mapping of available environmental technology; Statusrapport for miljoeteknologi

    Energy Technology Data Exchange (ETDEWEB)

    2011-03-15

    The purpose of this report is to provide an overview of the current status of environmental technology that may help to prevent and reduce / prevent environmental pollution. The report is a foundation report to the management plan for the North Sea. The report was prepared based on the NPD's knowledge and with good input from the PSA, and resource persons in the oil companies. The following is given a summary of the various disciplines and the technological challenges the industry has managed to meet and which ones remain. (Author)

  13. 我国纺织环保上浆现状及发展趋势%Current Status and Developing Trend of Environmental-friendly Sizing Technologies in China

    Institute of Scientific and Technical Information of China (English)

    王耀

    2014-01-01

    The development of textile sizing technologies should meet the requirements of low-carbon, eco-friendly, recycling economy and the developing trend of textile industry. This paper describes the current status, characteristics and existing problems of environmental-friendly sizing technologies in China and puts forward some ideas for promoting the development of environmental-friendly sizing technologies in China.%纺织上浆工艺的发展要符合低碳、绿色的循环经济发展要求及纺织工业发展趋势。文章主要介绍了目前我国纺织环保上浆的现状、特点及存在的问题,为加快推进我国纺织环保上浆工艺的发展提出了思路。

  14. Short-Term and Long-Term Technology Needs/Matching Status at Idaho National Engineering and Environmental Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    S. L. Claggett

    1999-12-01

    This report identifies potential technology deployment opportunities for the Environmental Management (EM) programs at the Idaho National Engineering and Environmental Laboratory (INEEL). The focus is on identifying candidates for Accelerated Site Technology Deployment (ASTD) proposals within the Environmental Restoration and Waste Management areas. The 86 technology needs on the Site Technology Coordination Group list were verified in the field. Six additional needs were found, and one listed need was no longer required. Potential technology matches were identified and then investigated for applicability, maturity, cost, and performance. Where promising, information on the technologies was provided to INEEL managers for evaluation. Eleven potential ASTD projected were identified, seven for near-term application and four for application within the next five years.

  15. THE KEY TECHNOLOGY AND DEVELOPMENT STATUS OF LINEAR COMPRESSOR%制冷线性压缩机关键技术及发展现状

    Institute of Scientific and Technical Information of China (English)

    曹广亮; 陈曦

    2016-01-01

    随着技术的发展,线性压缩机技术的应用逐渐从军工、航天、生物医药领域转向民用领域,应用范围扩大,技术研发增强。为了使科研人员对线性压缩机关键技术和发展现状有所了解,介绍了线性压缩机直线电机技术、线性压缩机润滑技术、线性压缩机控制技术和线性压缩机活塞及阀门布局四大技术,详细分析比较了线性压缩机直线电机的三种结构、线性压缩机有油润滑和无油润滑的优缺点、线性压缩机各种控制技术的特点、线性压缩机活塞单双侧布局和阀门三种布局的结构方式,并对线性压缩机的性能、发展现状进行了简要论述。%With the development of technology,the application of the linear compressor technology shift from the areas of military,aerospace and biomedical to civilian areas gradually,the scope of application has expanded,the linear com-pressor technology research has increased. In order to make researchers understand the technology and development status of linear compressor,this paper describes four technologies such as the linear motor technology of linear compressor,lubri-cation technology of linear compressor,control technology of linear compressor and pistons and valves layout of linear compressor,analyzes and compares three kinds of linear motors structure of linear compressor,advantages and disadvan-tages of oil lubrication and oil-free for linear compressor,various characteristics of control technology for linear compres-sor,the single-sided layout of piston and three layout modes of valves for linear compressor in detail. At the same time, this paper describes the performance and development status of the linear compressor briefly.

  16. A review of nuclear data needs and their status for fusion reactor technology with some suggestions on a strategy to satisfy the requirements

    Energy Technology Data Exchange (ETDEWEB)

    Smith, D.L. [Argonne National Lab., IL (United States); Cheng, E.T. [TSI Research, Inc., Solana Beach, CA (United States)

    1991-09-01

    A review was performed on the needs and status of nuclear data for fusion-reactor technology. Generally, the status of nuclear data for fusion has been improved during the past two decades due to the dedicated effort of the nuclear data developers. However, there are still deficiencies in the nuclear data base, particularly in the areas of activation and neutron scattering cross sections. Activation cross sections were found to be unsatisfactory in 83 of the 153 reactions reviewed. The scattering cross sections for fluorine and boron will need to be improved at energies above 1 MeV. Suggestions concerning a strategy to address the specific fusion nuclear data needs for dosimetry and activation are also provided.

  17. 污水源热泵技术研究现状及分析%Research status and analysis of sewage-source heat pump technology

    Institute of Scientific and Technical Information of China (English)

    孙春锦; 吴荣华; 孙源渊; 郑记莘

    2015-01-01

    Plugging and fouling are key challenges need to be addressed in sewage-source heat pump technology.At present,pre-filter and unblocked heat exchange technology are applied to solve plugging problem.Summarizes and analyses the research status of sewage-source heat pump technology.Compares the advantages and disadvantages between pre-filter and unblocked heat exchange technology,which provides a reference for the development and application of sewage-source heat pump technology.%堵塞和污垢是污水源热泵技术应用需要解决的关键难题。目前主要采用前置过滤技术和疏导式换热技术解决堵塞问题。总结并分析了污水源热泵技术的研究现状,比较了前置过滤技术和疏导式换热技术的优缺点,为污水源热泵技术的发展与应用提供参考。

  18. The Current Status of Electric Spark Line Cutting Technology in China%国内电火花线切割技术研发的探讨

    Institute of Scientific and Technical Information of China (English)

    胥宏; 张世凭; 连帅梅

    2013-01-01

      从快走丝电火花切割和慢走丝电火花切割两方面概述了国内电火花线切割技术的发展及应用现状。介绍了电火花线切割机床的加工原理、加工特点、加工范围及应用领域;并从主机制造技术、脉冲电源技术、控制技术以及加工工艺技术4个方面探讨双向快走丝电火花线切割技术的发展现状。%This article summarized the development and application of high speed WEDM wire cutting and Slow-feeding WEDM outlined electric spark line cutting technology in China in two aspects, described the processing principle of electric spark linear cutting machine tool, the processing characteristic and the processing range and application field;and discussed the current development status of two-way fast wire EDM wire cutting from four aspects of host machine manufacturing technology, pulsed power supply technology, control technology and processing technology .

  19. Development Status and Key technology of Service Robot for Elderly%老年服务机器人发展现状与关键技术

    Institute of Scientific and Technical Information of China (English)

    罗坚

    2016-01-01

    随着生活水平的显著提高和医疗条件的改善,老年服务机器人已成为当前服务机器人研究的一个重要方向,具有广阔的应用前景.介绍了国内外老年服务机器人的发展现状,对老年服务机器人的关键技术:自主移动技术、感知技术、智能控制技术和通信技术进行了介绍.对主要存在的问题和解决方案进行了总结.%As improvement of living standards and medical conditions,elderly service robots have become one of the most important research direction in current service robot researches, and have broad prospect in application.This paper present the developing status of service robots for elderly at home and abroad,and the several key technologies of robots for elderly are introduced, including autonomous mobile technology, sensing technology,intelligent control technology and communication technology.The main existing problems and solutions are summarized.

  20. Heat powered refrigeration compressor. Semi-annual technical report

    Energy Technology Data Exchange (ETDEWEB)

    Goad, R.R.

    1981-01-01

    The objective of this program is to develop and improve the design of previously started prototypes of the Heat Powered Refrigeration Compressor. To build this prototype and ready it for testing by the University of Evansville is another goal. This prototype will be of similar capacity as the compressor that will eventually be commercially produced. This unit can operate on almost any moderate temperature water heat source. This heat source could include such applications as industrial waste heat, solar, wood burning stove, resistance electrical heat produced by a windmill, or even perhaps heat put out by the condenser of another refrigeration system. Work performed in the past four months has consisted of: engineering of HX-1; comparisons of specifications from different companies to ensure state of the art applications of parts for project; coordinating project requirements with machine shop; designing condenser; and partial assembly of HX-1.

  1. 45 CFR 93.600 - Semi-annual compilation.

    Science.gov (United States)

    2010-10-01

    ... Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION NEW RESTRICTIONS ON... Clerk. (c) Information that involves intelligence matters shall be reported only to the Select Committee on Intelligence of the Senate, the Permanent Select Committee on Intelligence of the House...

  2. Solar technology assessment project. Volume 11: The solar industry in the United States: Its status and prospects, 1981

    Science.gov (United States)

    Clark, J. A.

    1981-04-01

    The energy production goals for the solar industry, and the industry's present status are described. Manufacturing and sales of low and medium temperature solar collectors from 1974 to 2000 are analyzed, and the HUD/DOE solar demonstration programs' relative merits are discussed. Certain characteristics of the conventional water heating industry are briefly described

  3. 我国池塘增氧技术现状与发展趋势%The development status, issues and trends of pond aeration technology in China

    Institute of Scientific and Technical Information of China (English)

    顾海涛; 王逸清

    2014-01-01

    The technology of pond aeration have developed in China for over 40 years since the emergence of first impeller aerator in 1972, which is one of the main driving factors that the total aquaculture output of China ranked first in the world for 24 consecutive years. This article analyzed the current status of the pond aeration technology in China, classified and elaborated impeller aerator, wave aerator and aerator with solar technology as mature technology, innovative technology and budding technology respectively. Simultaneously, the issues such as lack of evaluation method for the innovative technology, weak research and development capabilities and small efforts for new technology extension were put forward, which are all the bottleneck for the further development of pond aeration technology. Finally, the development trends of pond aeration technology were discussed based on new changes and features of aquaculture industry, such as the low energy consumption, recirculating aquaculture system, and the application of digital and intelligent technology in pond aeration.%以1972年第一台叶轮式增氧机的诞生为标志,池塘增氧技术在我国发展了40多年,它是我国养殖总产量连续24年位居世界第一的主要因素之一。通过对目前国内池塘增氧技术的现状进行分析,将叶轮式增氧机、涌浪式增氧机和太阳能技术在池塘增氧中的应用分别划分为成熟技术、创新技术和萌芽技术,并进行了阐述;指出目前存在的缺乏对创新技术的评价方法、研发能力不足、缺少对新技术的推广力度等问题是制约池塘增氧技术进一步发展的瓶颈,同时结合水产养殖发展的新变化、新特点,对池塘增氧技术发展的趋势进行了探讨。

  4. Elevance of PCDD/PCDF formation for the evaluation of POPs destruction technologies - Necessity and current status

    Energy Technology Data Exchange (ETDEWEB)

    Weber, R. [Tuebingen Univ. (Germany)

    2004-09-15

    The Stockholm Convention on Persistent Organic Pollutants (POPs) states in Article 6 that POPs waste should be destroyed or disposed of in a way that the POPs content is destroyed or irreversibly transformed. In this context it is critical that the destruction methods used do not create by-products that are themselves POPs. Therefore one important criterion for assessment of a POPs destruction technology is the potential formation of POPs and other toxic by-products, in particular if higher toxic PCDDs/PCDFs are formed and under which operation conditions their formation is relevant (for the respective POPs destruction technology). A detailed evaluation of non-combustion technologies with respect to PCDD/PCDF formation is lacking to date. Most information with respect to PCDD/PCDF formation in non-combustion technologies in the present stage of evaluation is provided by the companies developing or selling the facility. In a laboratory study it was discovered that super critical water oxidation (SCWO), a technology listed from United Nations Environmental Programme UNEP as ''Commercialised Technology with Considerable Experience'' and from United Nations Industrial Development Organization (UNIDO) as ''Emerging and Innovative Technologies'', has the potential to form high concentrations of PCDFs (in the % range) during PCB destruction. Such elevated PCDF formations might occur even at temperatures of potential application. This highlights the necessity of a more rigorous assessment of non-combustion technologies with respect to their PCDD/PCDF formation potential and their actual applicability for PCB/POPs destruction. The present paper provides a critical impulse in this respect, discusses the relevant formation pathways with respect to POPs destruction technologies and proposes a basic framework on how evaluations may be performed.

  5. [The present status and future prospects of application of digital medical technology in general surgery in China].

    Science.gov (United States)

    Fang, C H; LauWan, Y Y; Cai, W

    2017-01-01

    It has been almost 10 years since digital medical technology has started to becommonly used in general surgery in China.Led by advances in three dimensional(3D) visualization technology, virtual reality, simulation surgery, and 3D printing, digital medical technology have played important roles in changing the current practice of general surgery in China to become more effective by improving diagnostic accuracy and a better choice of therapeutic procedure with a resultant increased surgical success rate and a decreased surgical risks.Furthermore, education of medical students and young doctors become better and easier.

  6. XRF技术的应用研究现状概述%Review of Research on the Status Quo of XRF Technology Application

    Institute of Scientific and Technical Information of China (English)

    黑大千; 张焱

    2014-01-01

    XRF技术由于其卓越的技术特点,近年来被越来越广泛地应用于工业、环境、安全等众多领域之中。本文从应用领域角度出发,就XRF技术的应用研究现状进行了梳理与总结。%Because of the superior technical characteristics, XRF technology has been used widely in many areas of industry, envi-ronment, and security in recent years. In this article, the status of application of XRF technology has been combed and summarized from the applications perspective.

  7. Application status of RFID technology in main industries of China%中国RFID主要行业领域应用现状

    Institute of Scientific and Technical Information of China (English)

    邓卉

    2013-01-01

    With the rapid development of IOT industry, RFID technology has been more and more widely used. The current application status of RFID technology is introduced, such as in the ifelds of ifnance, mobile payment, urban public utilities, transportation, medical health, food security and anti-counterfeiting.%  随着物联网产业的快速发展,RFID的应用领域越来越广泛。文章介绍了RFID技术目前在金融、移动支付、城市公共事业、交通、医疗卫生、食品安全以及商品防伪领域的应用现状。

  8. Cyber Security Status and Technology Development%网络安全现状与技术发展

    Institute of Scientific and Technical Information of China (English)

    宁向延; 张顺颐

    2012-01-01

    The developments of open, free, international cyber technologies bring many revolutionary changes to all countries of the world, all government organizations, all enterprise organizations and all aspects of our lives. With the improved efficiency and the conveniences, many threats and challenges have appeared on open networks. Thus cyber security has become an indispensable part of information networks. Based on the developing security theories, application technologies , management standards, and so on, cyber security technology system has been gradually formed and mature. With the development of network technologies , new information security technologies ( such as IPv6 security, wireless security and embedded system security) will become the mainstream of network security. Many security technologies will be a-malgamated, at the same time the security technology will be syncretized with other technologies, and monitoring technology will become the mainstream of cyber security technologies.%开放、自由、国际化的信息网络技术的发展给世界各国、政府机构、企事业机构和个人生活带来了革命性的变革.伴随着提高效率和提供各种便利的同时,人们要面对开放网络带来的信息安全方面的威胁和挑战,网络的安全问题成为信息网络健康发展必不可少的重要一环.有关网络安全的研究,在安全理论、应用技术、规范管理等方面不断深入,安全技术体系逐步形成并成熟起来.随着网络技术的发展变化,新兴信息安全技术(如IPv6安全、无线安全和嵌入式系统安全等)将成为主流,网络安全技术也将逐渐发展和变化.许多安全技术将由独立走向融合,同时安全技术开始与其他技术进行融合,监控技术将成为信息网络安全技术的主流.

  9. 振动辅助切削加工技术研究现状%Research status of the vibration assisted machining (VAM)technology

    Institute of Scientific and Technical Information of China (English)

    李增强; 喻栋; 孙涛

    2015-01-01

    随着精密与超精密加工技术的不断发展和成熟,将振动辅助切削技术应用到精密与超精密加工中去已成为发展的一个必然趋势。结合国内外研究人员的研究成果,介绍了超声振动辅助切削技术的基本原理,综述了超声振动辅助切削技术的优势以及研究现状。%With the constantly development of precision and ultra-precision machining technology,the vibration assisted machining (VAM)technology applied to the precision and ultra-precision machining has become an inev-itable trend.This paper combines the domestic and foreign researchers’achievements and introduces the basic principle of ultrasonic vibration assisted cutting technology.Finally,the advantages and research status of the ul-trasonic vibration assisted cutting technology is summarized at the end of paper.

  10. Application and research status of fluidized bed biomass gasification technologies%生物质流化床气化技术应用研究现状

    Institute of Scientific and Technical Information of China (English)

    孟凡彬; 刘建冲; 王贵路; 李晓伟; 张大雷

    2011-01-01

    According to the product s of biomass gasification, the purposes of biomass gasification could be classified into hydrogen production,power generation and synthetic liquid fuel This article introduced the features of hydrogen production from biomass steam gasification technology, catalytic gasification technology and supercritical water gasification technology, analyzed the technological and economic feasibility of fluidized bed biomass gasification and summarized the research status of fluidized bed biomass gasification to liquid fuel technology.It points out that the main bottleneck of biomass fluidized bed gasification technology is to change the stoichiometric ratio, to remove tar and to clean the produced synthesis gas It is surely that the oriented gasification will be the main tendency in the future.%按所得产品不同,可将生物质气化技术分为制氢、发电和合成液体燃料3大类.文章介绍了生物质流化床水蒸气气化制氢、催化气化制氢和超临界水气化制氢的工艺特点;分析了生物质流化床气化发电的技术、经济可行性;简述了生物质流化床气化合成液体燃料的研究现状;指出气化产出气化学当量比调变、焦油去除问题和合成气净化是生物质流化床气化技术应用的主要瓶颈,认为定向气化是今后研究的主要方向.

  11. Technology.

    Science.gov (United States)

    Online-Offline, 1998

    1998-01-01

    Focuses on technology, on advances in such areas as aeronautics, electronics, physics, the space sciences, as well as computers and the attendant progress in medicine, robotics, and artificial intelligence. Describes educational resources for elementary and middle school students, including Web sites, CD-ROMs and software, videotapes, books,…

  12. 国内外技术经纪人发展现状%Development Status of Domestic and Foreign Technology Brokers

    Institute of Scientific and Technical Information of China (English)

    张友轩; 张桂华; 韩令正; 宋澄; 张旸

    2015-01-01

    Technology broker appeared earlier in Tianjin but the development of broker groupsis not good enough and it is urgent to build up a technology broker system in Tianjin. The service system and characteristics of technology brokers in advanced countries were described. Based on the current situation of technology brokers in Tianjin and other cities and prov-inces in China and even in the world,this paper proposes some suggestions for the construction of technology broker system in the city.%天津市技术经纪人起步较早,但发展不够健全。实现科技创新,构建天津市的技术经纪人体系迫在眉睫。介绍了主要发达国家技术经纪人服务体系和特点,从天津市和国内外技术经纪人的现状出发,对构建天津市技术经纪人体系提出了一些建议。

  13. The Center for Technology for Advanced Scientific Component Software (TASCS) Lawrence Livermore National Laboratory - Site Status Update

    Energy Technology Data Exchange (ETDEWEB)

    Epperly, T W

    2008-12-03

    This report summarizes LLNL's progress for the period April through September of 2008 for the Center for Technology for Advanced Scientific Component Software (TASCS) SciDAC. The TASCS project is organized into four major thrust areas: CCA Environment (72%), Component Technology Initiatives (16%), CCA Toolkit (8%), and User and Application Outreach & Support (4%). The percentage of LLNL's effort allocation is shown in parenthesis for each thrust area. Major thrust areas are further broken down into activity areas, LLNL's effort directed to each activity is shown in Figure 1. Enhancements, Core Tools, and Usability are all part of CCA Environment, and Software Quality is part of Component Technology Initiatives. The balance of this report will cover our accomplishments in each of these activity areas.

  14. 芒果加工技术研究进展%Research status of mango processing technology

    Institute of Scientific and Technical Information of China (English)

    赖必辉; 毕金峰; 庞杰; 丁媛媛; 王沛; 白沙沙

    2011-01-01

    The progress was summarized of mango processing technologies in recent years at home and abroad, which mainly involves the products of mango drinks, the products of mango dehydrated, the comprehensive utilization of mango peel and mango kernel and the new mango processing technology, etc., and aimed to provide theoreticsl help for the mango industry and mango processing technology.%对近年来国内外关于芒果加工技术的研究成果进行综述,主要涉及芒果饮品类、芒果干制品类、芒果皮和核的综合利用类及芒果加工新技术等方面,旨在为芒果产业与芒果加工技术的进一步结合提供理论帮助.

  15. Current Status of Coal Gasification Technology in China%国内煤气化技术现状

    Institute of Scientific and Technical Information of China (English)

    孙曙光

    2014-01-01

    简要介绍煤气化技术的原理和种类,重点阐述国内煤气化技术的研究进展和工业应用现状,指出国内煤气化技术发展存在的问题及未来的发展方向。%The paper describes the principle and classification of coal-gasification technology and points out the problems that are encountered in the development of the coal-gasification technology and the developing trend in China.

  16. Status of NDE research in the US-contributions of NDE to reactor safety and implementation of NDE technology

    Energy Technology Data Exchange (ETDEWEB)

    Ammirato, F. [EPRI, Charlotte, NC (United States)

    1999-08-01

    Power plant designers, plant owners, and regulators have developed inservice inspection (ISI) programs as part of their comprehensive approach to ensuring nuclear safety. This paper examines the role of ISI in reactor safety through several examples drawn from recent industry initiatives to address implementation of effective examination technology for nuclear power plant piping, and BWR and PWR reactor pressure vessels. These examples also illustrate the importance of well designed performance demonstration activities to support application of effective ISI. Finally, the efforts required to implement effective ISI technology for field inspection is addressed. (orig./DGE)

  17. Status of Teachers' Technology Uptake and Use of GeoGebra in Teaching Secondary School Mathematics in Kenya

    Science.gov (United States)

    Mwingirwa, Irene Mukiri; Miheso-O'Connor, Marguerite Khakasa

    2016-01-01

    The uptake of technology and specifically, GeoGebra software, in teaching mathematics has had mixed success in spite of its documented benefits. This study investigated teachers' perspective towards training and eventual use of GeoGebra as a tool to enhance learning of mathematics. In this article we share findings from a larger study that was…

  18. [Early signs of the effect of complex occupational factors of plasma technology on the workers' health status].

    Science.gov (United States)

    Sineva, E L; Il'nitskaia, A V; Marushkin, V E

    1991-01-01

    The article reports the results of health-related studies among workers engaged in plasma technology processes. It was found that the earliest indicators of health changes in the workers revealed themselves in the vegetative nervous system and vestibulocochlear function combined with subatrophic++ changes in the respiratory mucous membranes.

  19. PRESENT STATUS OF COAL GASIFICATION TECHNOLOGY AND ITS TREND IN DEVELOPMENT%当前煤气化技术现状及发展趋势

    Institute of Scientific and Technical Information of China (English)

    亢万忠

    2012-01-01

    由于我国能源结构的特点,确定了我国发展煤化工的重要性和紧迫性,煤气化技术作为煤化工产业链中的基础和龙头技术,对整个产业链的经济性、可靠性和环境效果影响很大,分析当前国内煤气化技术的现状和发展趋势,阐述煤气化技术今后的发展方向。%The features of China's energy structure have determined both the importance and urgency in the country's development of coal-based chemical industry; the coal gasification technology, acting as the basic and leading one in the coal-chemical industrial chain,has a great influence on the economy,reliability and environmental effect of entire industrial chain;this paper has analyzed the present status of domestic coal gasification technology and its trend in development and the future orientation in development of coal gasification technology.

  20. Technology

    Directory of Open Access Journals (Sweden)

    Xu Jing

    2016-01-01

    Full Text Available The traditional answer card reading method using OMR (Optical Mark Reader, most commonly, OMR special card special use, less versatile, high cost, aiming at the existing problems proposed a method based on pattern recognition of the answer card identification method. Using the method based on Line Segment Detector to detect the tilt of the image, the existence of tilt image rotation correction, and eventually achieve positioning and detection of answers to the answer sheet .Pattern recognition technology for automatic reading, high accuracy, detect faster

  1. 油罐清洗技术的发展现状%Development Status of Oil Tank Cleaning Technology

    Institute of Scientific and Technical Information of China (English)

    赵琳; 刘国荣; 姚凤灵; 王海涛

    2015-01-01

    原油是一种由多种烃类组成的复杂混合物,在油罐中进行长时间的储存后,由于重力、压力、温度的综合影响,原油中的杂质和重油性组分会慢慢沉积,最后积累在罐底,变成黑色、黏稠的胶状沉积物,即油罐底泥。底泥的不断增多会对原油的油品质量及储罐的有效容积产生很大影响,因此,必须对油罐进行定期检修和清洗除垢。目前,原油储罐的清洗技术主要包括人工清洗技术、化学清洗技术和机械清洗技术,还可以使用油罐清洗机器人对油罐进行清洗。我国原油储罐清洗技术正从原来的人工清洗技术向机械自动化清洗方向发展。介绍了几种油罐清洗方法,以及油罐清洗后残余油泥的处理方法。%The crude oil is a complex mixture composed of a variety of hydrocarbons. After prolonged storage in the tank, ow⁃ing to the comprehensive influence of gravity, pressure, temperature, impurities in crude oil and heavy oil group branch deposit slowly and finally accumulated at the bottom of the tank, into the black, sticky, colloidal sediments, namely oil tank sludge. The increasing sediment will have a great influence on the quality of crude oil and the effective volume of the storage tank, Therefore, it is necessary to regular maintenance and cleaning the tank. At present, the oil tank cleaning technology mainly includes the man⁃ual cleaning techniques, chemical cleaning technology and mechanical cleaning technology, and tank cleaning robot can also be used to clean the tank. Cleaning technology of oil storage tanks in China is from the original manual cleaning technology to the de⁃velopment of mechanical automation. This paper introduces several methods of tank cleaning, and processing method of residual sludge after tank cleaning.

  2. Status and Benefits of Renewable Energy Technologies in the Rural Areas of Ethiopia: A Case Study on Improved Cooking Stoves and Biogas Technologies

    Directory of Open Access Journals (Sweden)

    Yitayal Addis Alemayehu

    2015-07-01

    Full Text Available The majority of Ethiopia’s people (85% reside in rural areas, deriving their livelihood from agriculture. Ethiopia’s energy system is characterized mainly by biomass fuel supply, with households being the greatest energy consumers. The household sector takes up nearly 94 % of the total energy supplies. Access to energy resources and technologies in rural Ethiopia is highly constrained which makes the energy supply and consumption pattern of the country to show many elements of un-sustainability. The concern on cooking practices, household economics, health, forest and agricultural resource management, and global greenhouse gas emissions has emerged as a transformative opportunity to improve individual lives, livelihoods, and the global environment. More decentralized renewable energy projects could play an important role in mitigating traditional biomass fuel use. Improved cooking stove (ICS dissemination projects have been launched involving the private sector in the production and commercialization of the stoves. In doing so, about 3.7 million ICSs have been disseminated in the country so far which benefited stove users, producers and the total environment as about 30 million hectare of forest per year can be conserved. Conversion of animal waste to biogas energy to replace traditional fuel and use of the slurry as a fertilizer is the other current focus of the government of Ethiopia and installed more than 860 biogas digesters. The benefits obtained from these technologies are considerable and promising. However, the programs are not that much benefited the rural households where it had been intended to address. So, due attention should be given for those of the rural households in order to address the fuel wood crisis, environmental degradation and their health condition.

  3. On The legal status of Experts in science and technology Administration%专家在科技行政中的法律地位探析

    Institute of Scientific and Technical Information of China (English)

    沈跃东

    2011-01-01

    明确专家的法律地位是专家参与科技行政决策的法治化的关键问题。在科技行政中,专家与科技行政决策机构之间形成行政合同和行政委托法律关系。行政合同是其中的基础。它明确了专家在科技行政中应该享有的权利和承担的义务。凭借此行政合同,专家接受科技行政决策机构的委托,处理具有专业性和技术性的行政事项,一旦决策失误,法律责任由科技行政机构承担,专家与行政相对人不发生法律关系,但科技行政机关可以追究专家的行政违约责任。%Defining the legal status of expert is key issue which expert to participate in Science and technology administrative decision-making in the process of the rule of law.In science and technology administration,The expert and the science and technology executive decision organization forms the administrative contract and the administrative request legal relationship.The administrative contract is foundation which has been clear about the rights and duties which the expert should enjoy.The expert accepts request,Process the specialization and the technical administrative item.If the decision error,the legal liability undertakes by the science and technology administrative body.Between expert and the administrative relative person,it do not have the legal relationship,but The expert undertakes the administrative violation responsibility.

  4. 热冲压技术应用现状与发展前景%Present status and prospects of hot stamping press technology

    Institute of Scientific and Technical Information of China (English)

    朱久发

    2012-01-01

    With the development of weight reduction of automobile it is urgent for the au- tomobile manufacturing works to develop new processes that can reduce the parts weight while keep the performanee of the automobile unchanged. Blank hot forming is a new technology which is realized by heating the advanced high strength steel to austenitie phase, quick stamping, and quenching in die during press holding to meet the required cooling speed. By this new forming technology the phase of the parts can be changed to martensite and the strength of the parts will arrive at about 1 500 MPa. The present pa- per systematically describes the key equipments, key technology, advantage and disad- vantage of blank hot forming and the application status and foresees the trends of devel- opment of the hot stamping technology in the future.%随着汽车轻量化的发展,迫切需要在不降低汽车零部件性能的前提下,开发一些新工艺来减轻零件的重量。钢板热冲压是一种将先进高强度钢板加热到奥氏体温度后快速冲压,在保压阶段通过模具实现淬火并达到所需冷却速度,从而得到组织为马氏体、强度在1 500MPa左右的超高强度零件的新型成形技术。对钢板热冲压新技术的关键装备、核心技术和优缺点以及使用现状等做了系统介绍,并预测了热冲压技术的未来发展趋势。

  5. Research Status of Biogas Supply Technology%沼气供应技术研究现状

    Institute of Scientific and Technical Information of China (English)

    张婧; 黄小美

    2014-01-01

    The enormously organic waste and sewage of urban and rural in China contain considerable resources, a series of product from waste digestion (biogas, biogas residue and slurry) will produce the respectable economic benefits. As a renewable green fuel, biogas has shown a good prospect in heating supply, thermoelectricity cogeneration, vehicle fuel, injection into the natural gas pipeline and other aspects. Keep abreast of the development of biogas supply technology at home and abroad, summarize experience in advanced technology, moreover, combined with the actual situation in China, introduce the development pattern of biogas injection, and discuss mixing technologies, equipments and related technological regulations to make biogas become the supplementary of natural gas consumption gap, and the propellant to coordinating urban and rural construction and circular low carbon economy.%中国城乡巨大的有机废物废水蕴藏着可观的资源,废物消化得到的一系列产物即沼气、沼渣和沼液均有可能产生巨大的经济效益。沼气作为可再生的绿色燃料,目前已在供热、热电联产、车用燃料、并入天然气管道等方面展现出良好的应用前景。了解国内外沼气供应技术的发展水平,总结先进技术经验,同时结合我国实际情况,着重介绍沼气并网发展模式,研究沼气掺混工艺、设备及相关技术规定,使沼气成为天然气消费缺口的补充,可以此推进城乡统筹和低碳循环经济。

  6. Computer analyses for the design, operation and safety of new isotope production reactors: A technology status review

    Energy Technology Data Exchange (ETDEWEB)

    Wulff, W.

    1990-01-01

    A review is presented on the currently available technologies for nuclear reactor analyses by computer. The important distinction is made between traditional computer calculation and advanced computer simulation. Simulation needs are defined to support the design, operation, maintenance and safety of isotope production reactors. Existing methods of computer analyses are categorized in accordance with the type of computer involved in their execution: micro, mini, mainframe and supercomputers. Both general and special-purpose computers are discussed. Major computer codes are described, with regard for their use in analyzing isotope production reactors. It has been determined in this review that conventional systems codes (TRAC, RELAP5, RETRAN, etc.) cannot meet four essential conditions for viable reactor simulation: simulation fidelity, on-line interactive operation with convenient graphics, high simulation speed, and at low cost. These conditions can be met by special-purpose computers (such as the AD100 of ADI), which are specifically designed for high-speed simulation of complex systems. The greatest shortcoming of existing systems codes (TRAC, RELAP5) is their mismatch between very high computational efforts and low simulation fidelity. The drift flux formulation (HIPA) is the viable alternative to the complicated two-fluid model. No existing computer code has the capability of accommodating all important processes in the core geometry of isotope production reactors. Experiments are needed (heat transfer measurements) to provide necessary correlations. It is important for the nuclear community, both in government, industry and universities, to begin to take advantage of modern simulation technologies and equipment. 41 refs.

  7. The CMS fast beams condition monitor back-end electronics based on MicroTCA technology: status and development

    Science.gov (United States)

    Zagozdzinska, Agnieszka A.; Dabrowski, Anne E.; Pozniak, Krzysztof T.

    2015-09-01

    The Fast Beams Condition Monitor (BCM1F), upgraded for LHC Run II, is used to measure the online luminosity and machine induced background for the CMS experiment. The detector consists of 24 single-crystal CVD diamond sensors that are read out with a custom fast front-end chip fabricated in 130 nm CMOS technology. Since the signals from the sensors are used for real time monitoring of the LHC conditions they are processed by dedicated back-end electronics to measure separately rates corresponding to LHC collision products, machine induced background and residual activation exploiting different arrival times. The system is built in MicroTCA technology and uses high speed analog-to-digital converters. In operational modes of high rates, consecutive events, spaced in time by less than 12.5 ns, may cause partially overlapping events. Hence, novel signal processing techniques are deployed to resolve overlapping peaks. The high accuracy qualification of the signals is crucial to determine the luminosity and the machine induced background rates for the CMS experiment and the LHC.

  8. GaAs (AlGaAs)/CuInSe2 tandem solar cells. Technology status and future directions

    Science.gov (United States)

    Kim, N. P.; Burgess, R. M.; Gale, R. P.; Mcclelland, R. W.

    1991-01-01

    Mechanically stacked, high efficiency, lightweight, and radiation resistant photovoltaic cells based on a GaAs thin film top and CuInSe2 thin film bottom cells were developed, and are considered one of the most promising devices for planar solar array applications. The highest efficiency demonstrated so far using the 4 sq cm design is 23.1 pct. AM0, one sun efficiency when measured in four-terminal configuration. The current status of the GaAs(AlGaAs)/CuInSe2 tandem cell program is presented and future directions that will lead to cell efficiencies higher than 26 pct. Air Mass Zero (AM0). A new 8 sq cm cell design developed for a two terminal and voltage matched configuration to minimize wiring complexity is discussed. Optimization of the GaAs structure for a higher end-of-life performance and further improvement of tandem cells by utilizing AlGaAs as an top absorber are described. Results of environmental tests conducted with these thin film GaAs/CuInSe2 tandem cells are also summarized.

  9. X线采集技术发展现状%Development Status of X-ray Acquisition Technology

    Institute of Scientific and Technical Information of China (English)

    张迎庆

    2014-01-01

    This paper mainly introduces the development history of X-ray acquisition technology and the application features of various X-ray acquisition modes. This paper points out that advanced X-ray acquisition mode which can improve image quality and decrease radiation dose will play an important role in the development of lfat panel detector.%本文主要阐述了X线采集技术的发展历程及不同X线采集方式的应用特点,指出先进的X线采集方式可以全面提高图像质量,降低辐射剂量,是影响平板探测器发展的重要因素。

  10. Current Status of the Transmutation Reactor Technology and Preliminary Evaluation of Transmutation Performance of the KALIMER Core

    Energy Technology Data Exchange (ETDEWEB)

    Hong, Ser Gi; Sim, Yoon Sub; Kim, Yeong Il; Kim, Young Gyum; Lee, Byung Woon; Song, Hoon; Lee, Ki Bog; Jang, Jin Wook; Lee, Dong Uk

    2005-08-15

    Recently the most countries using the nuclear power plants for electricity generation have been faced with the problem of the preparation of the repository for the disposition of the nuclear waste generated from LWR. It was well-known that the issues related with long term risk of the radioactive wastes for the future generations are due only to 1% of the total waste. This small fraction of 1% consists of transuranic (TRU) nuclides such as Pu, Np, Am, Cm and the long lived fission products such as Tc and I. For the transuranic (TRU) nuclides, their half lives range from several years to several hundred thousands years and hence their radioactive toxicity can be lasted over very long time period. This has made the change of the rule of the fast spectrum reactor from the economical use of uranium resource through breeding to the reduction of the nuclear waste through the transmutation. The purpose of this study is to obtain the basic knowledge on the nuclear transmutation technology and to suggest the technical solution ways for the future technology development and enhancement through a survey of the state-of-art of the international research on the nuclear transmutation. The increase of the transmutation rate requires the reduction of the breeding ratio. In fact, the transmutation rate is determined by the breeding ratio. The reduction of the breeding ratio can be achieved by reducing the U-238 content in fuel or increasing the neutron leakage through core boundary or absorbing the neutrons by using some absorbers. However, the reduction of the U-238 content results in the degradation of the fuel Doppler coefficient that is one of the most important safety-related parameters and the reduction of the effective delayed neutron fraction that is related with the controllability of the reactor core. Also, the increase of the transmutation rate can lead to the increase of the coolant void reactivity worth unless some ways to reduce the coolant void reactivity are not

  11. Review and current status of emulsion/dispersion technology using an internal gelation process for the design of alginate particles.

    Science.gov (United States)

    Reis, Catarina P; Neufeld, Ronald J; Vilela, Sandra; Ribeiro, António J; Veiga, Francisco

    2006-05-01

    Emulsification/internal gelation has been suggested as an alternative to extrusion/external gelation in the encapsulation of several compounds including sensitive biologicals such as protein drugs. Protein-loaded microparticles offer an inert environment within the matrix and encapsulation is conducted at room temperature in a media free of organic solvents. Recently, the concept of internal gelation has been applied to formulating nanoparticles as drug delivery systems. Emulsification/internal gelation technologies available for microparticles preparation, particularly that involving alginate polymer, are described as well as recent advances towards applications in nanotechnology. Those methods show great promise as a tool for the development of encapsulation processes, especially for the new field of nanotechnology using natural polymers.

  12. Research status and prospect to the sludge cleaning technology of oil tank%油罐底泥清洗技术研究现状与展望

    Institute of Scientific and Technical Information of China (English)

    周利坤

    2013-01-01

    Tank sludge is a dark and dense gelatinous material layer formed on the tank bottom during oil storage. Due to containing BTEX, phenols and other toxic substances, it cannot be directly discharged. However, it will accelerate corrosion to the tank bottom plate so as to reduce service life of the oil tank and have some negative impacts on the tank oil quality and effective volume. Characteristics, hazards, cleaning cycles and costs of the tank sludge are analyzed simply. Inductive analysis on the status and development trend for tank sludge treatments worldwide is conducted on cleaning technologies, cleaning processes, recycling treatment technologies and other aspects. The application and research status worldwide on manual cleaning, mechanical cleaning, robot cleaning and other aspects are introduced. Through comprehensive analysis, it is proposed that the tank sludge cleaning technology will develop towards closing, integration, systematization and intelligence and sludge treatment will develop towards facilitation, reduction, harmlessness and recycling.%油罐底泥是在油品储存过程中,在罐底形成的一种又黑又稠的胶状物质层,因其含有苯系物、酚类等有毒物质,不能直接排放.若不及时清除,将加速油罐底板的腐蚀,降低油罐的使用寿命,并对罐内油品质量、有效容积等产生一定的负面影响.简要分析了油罐底泥的特性、危害、清洗年限及费用;从清洗技术、清洗工艺及资源化处理技术等方面,归纳分析了国内外罐底油泥处理现状和发展趋势;阐述了国内外在人工清洗、机械清洗及机器人清洗等方面的应用与研究现状;通过综合分析,指出油罐底泥清洗技术将向密闭化、综合化、系统化、智能化的方向发展,油泥处理将向便捷化、减量化、无害化、资源化方向发展.

  13. Research Status and Application of Wireless Power Transmission Technology%无线电能传输技术的研究现状与应用

    Institute of Scientific and Technical Information of China (English)

    范兴明; 莫小勇; 张鑫

    2015-01-01

    firstly. And then the research status of key technology and the critical issues which remain to be solved of the four main wireless power transmission techniques are analyzed, and the application of these techniques in some important field, such as transportation, medical electronics, consumer electronics and space solar power and so on, are summarized. Finally, the application prospect and development trend of wireless power transmission technology is discussed.

  14. Capturing Detailed Outcrop Geology Using Terrestrial Laser Scanning (Lidar) and Other Digital Technologies: Current Status and Future Directions

    Science.gov (United States)

    Jones, R. R.; McCaffrey, K. J.

    2007-12-01

    Geospatial data acquisition at global to regional scales has wide acceptance, and tools such as Google Earth have been instrumental in extending Earth visualisation far beyond specialist users of GIS and satellite imagery. At the outcrop scale, the number of industry and academic geoscientists adopting digital technologies to gather field data is steadily increasing. When integrated with traditional field skills, these technologies offer two fundamental advantages: firstly, outcrop geology can now be recorded with very high detail and precision; secondly, observations and data are precisely georeferenced, which is a prerequisite for 2D and 3D spatial analysis. Digital outcrop data are being used in a wide variety of ways, many of which can be characterised in terms of two end members. Firstly, using methods such as terrestrial laser scanning and digital photogrammetry, it is possible to create highly realistic virtual copies of the outcrop. These virtual outcrop models can be used to great effect to enhance teaching, to provide virtual field-trips (most effective in conjunction with a real visit to the outcrop), to promote group discussion and interpretation, or as part of Health & Safety briefing. Secondly, digital outcrop data is also being used to derive quantitative attribute measurements from specific geological features. Here the emphasis is not on capturing a photo-realistic copy of the outcrop, but rather on gathering the relevant types of data at the most appropriate resolution and geospatial precision for the type of analysis undertaken. In addition to laser scanning, useful technologies include dGPS, laser range-finding, and Total Station surveying. Examples of this kind of quantitative analysis include fault curvature, roughness, branch-line geometry, spatial variation in fault displacement, fracture spacing and 3D spatial clustering, fold curvature, sedimentary channel morphology, lateral and vertical facies variations, and geomorphological analysis of

  15. Technology Status and Developing Trends of Satellite Phased Array%星载相控阵天线的技术现状及发展趋势

    Institute of Scientific and Technical Information of China (English)

    阎鲁滨

    2012-01-01

    星载相控阵天线采用现代微波集成技术,在有限的卫星平台空间条件下,实现独立控制的多个点波束,满足未来通信的需求。相控阵天线可以实现波束间通信容量的调整,还可以根据需要改变波束形状,使用自适应调零的抗干扰技术,这些技术已在国外星上设备中广泛采用,具有广阔的发展前景。文章介绍了星载相控阵天线的研究现状、关键技术,以及发展趋势,并对我国星载相控阵天线技术的发展提出了建议。%Satellite phased array with modern microwave integrated circuit technology takes limit space on satellite and is able to independently control many beams to satisfy the demands ofmod- ern communication. The power ration between beams of phased array is adjustble. The radiation beam shape is variable and adaptive anti-jamming technology is easy to apply. Satellite phased ar- ray has been applied in wide domain and has increasing developing future. This paper gives the research status of satellite phased array, the key technologies and prospects the developing trends of satellite phased array.

  16. STATUS OF THE DEVELOPMENT OF IN-TANK/AT-TANK SEPARATIONS TECHNOLOGIES FOR FOR HIGH-LEVEL WASTE PROCESSING FOR THE U.S. DEPARTMENT OF ENERGY

    Energy Technology Data Exchange (ETDEWEB)

    Aaron, G.; Wilmarth, B.

    2011-09-19

    Within the U.S. Department of Energy's (DOE) Office of Technology Innovation and Development, the Office of Waste Processing manages a research and development program related to the treatment and disposition of radioactive waste. At the Savannah River (South Carolina) and Hanford (Washington) Sites, approximately 90 million gallons of waste are distributed among 226 storage tanks (grouped or collocated in 'tank farms'). This waste may be considered to contain mixed and stratified high activity and low activity constituent waste liquids, salts and sludges that are collectively managed as high level waste (HLW). A large majority of these wastes and associated facilities are unique to the DOE, meaning many of the programs to treat these materials are 'first-of-a-kind' and unprecedented in scope and complexity. As a result, the technologies required to disposition these wastes must be developed from basic principles, or require significant re-engineering to adapt to DOE's specific applications. Of particular interest recently, the development of In-tank or At-Tank separation processes have the potential to treat waste with high returns on financial investment. The primary objective associated with In-Tank or At-Tank separation processes is to accelerate waste processing. Insertion of the technologies will (1) maximize available tank space to efficiently support permanent waste disposition including vitrification; (2) treat problematic waste prior to transfer to the primary processing facilities at either site (i.e., Hanford's Waste Treatment and Immobilization Plant (WTP) or Savannah River's Salt Waste Processing Facility (SWPF)); and (3) create a parallel treatment process to shorten the overall treatment duration. This paper will review the status of several of the R&D projects being developed by the U.S. DOE including insertion of the ion exchange (IX) technologies, such as Small Column Ion Exchange (SCIX) at Savannah River

  17. National Institute of Standards and Technology measurement service of the optical properties of biomedical phantoms: current status

    Science.gov (United States)

    Lemaillet, Paul; Cooksey, Catherine C.; Levine, Zachary H.; Pintar, Adam L.; Hwang, Jeeseong; Allen, David W.

    2016-03-01

    The National Institute of Standards and Technology (NIST) has maintained scales for reflectance and transmittance over several decades. The scales are primarily intended for regular transmittance, mirrors, and solid surface scattering diffusers. The rapidly growing area of optical medical imaging needs a scale for volume scattering of diffuse materials that are used to mimic the optical properties of tissue. Such materials are used as phantoms to evaluate and validate instruments under development intended for clinical use. To address this need, a double-integrating sphere based instrument has been installed to measure the optical properties of tissue-mimicking phantoms. The basic system and methods have been described in previous papers. An important attribute in establishing a viable calibration service is the estimation of measurement uncertainties. The use of custom models and comparisons with other established scales enabled uncertainty measurements. Here, we describe the continuation of those efforts to advance the understanding of the uncertainties through two independent measurements: the bidirectional reflectance distribution function and the bidirectional transmittance distribution function of a commercially available solid biomedical phantom. A Monte Carlo-based model is used and the resulting optical properties are compared to the values provided by the phantom manufacturer.

  18. Process Design and Costing of Bioethanol Technology: A Tool for Determining the Status and Direction of Research and Development.

    Science.gov (United States)

    Wooley; Ruth; Glassner; Sheehan

    1999-10-01

    Bioethanol is a fuel-grade ethanol made from trees, grasses, and waste materials. It represents a sustainable substitute for gasoline in today's passenger cars. Modeling and design of processes for making bioethanol are critical tools used in the U.S. Department of Energy's bioethanol research and development program. We use such analysis to guide new directions for research and to help us understand the level at which and the time when bioethanol will achieve commercial success. This paper provides an update on our latest estimates for current and projected costs of bioethanol. These estimates are the result of very sophisticated modeling and costing efforts undertaken in the program over the past few years. Bioethanol could cost anywhere from $1.16 to $1.44 per gallon, depending on the technology and the availability of low cost feedstocks for conversion to ethanol. While this cost range opens the door to fuel blending opportunities, in which ethanol can be used, for example, to improve the octane rating of gasoline, it is not currently competitive with gasoline as a bulk fuel. Research strategies and goals described in this paper have been translated into cost savings for ethanol. Our analysis of these goals shows that the cost of ethanol could drop by 40 cents per gallon over the next ten years by taking advantage of exciting new tools in biotechnology that will improve yield and performance in the conversion process.

  19. 垃圾焚烧技术发展现状及其在泰安市的应用研究%Developmental Status of Waste Incineration Technology and Its Application Research in Taian City

    Institute of Scientific and Technical Information of China (English)

    周民

    2011-01-01

    Combining status of municipal domestic waste incineration technology and its application situation in China, feasibility of waste incineration technology applied in Taian city was discussed.%结合目前城市生活垃圾焚烧处理技术及国内应用现状,对泰安市发展垃圾焚烧技术的可行性进行了探讨.

  20. Paging Doctor Google! Heuristics vs. technology [v2; ref status: indexed, http://f1000r.es/113

    Directory of Open Access Journals (Sweden)

    Kenar D Jhaveri

    2013-04-01

    Full Text Available The most dramatic development in medical decision-making technology has been the advent of the Internet. This has had an impact not only on clinicians, but has also become an important resource for patients who often approach their doctors with medical information they have obtained from the Internet.  Increasingly, medical students, residents and attending physicians have been using the Internet as a tool for diagnosing and treating disease. Internet-based resources that are available take various forms, including informational websites, online journals and textbooks, and social media.  Search engines such as Google have been increasingly used to help in making diagnoses of disease entities. Do these search methods fare better than experienced heuristic methods? In a small study, we examined the comparative role of heuristics versus the 'Google' mode of thinking. Internal medicine residents were asked to “google” key words to come up with a diagnosis. Their results were compared to experienced nephrology faculty and fellows in training using heuristics and no additional help of internet. Overall, with the aid of Google, the novices (internal medicine residents correctly diagnosed renal diseases less often than the experts (the attendings but with the same frequency as the intermediates (nephrology fellows.  However, in a subgroup analysis of both common diseases and rare diseases, the novices correctly diagnosed renal diseases less often than the experts but more often than the intermediates in each analysis.  The novices correctly diagnosed renal diseases with the same frequency as nephrology fellows in training.

  1. The current status of fluoride salt cooled high temperature reactor (FHR) technology and its overlap with HIF target chamber concepts

    Science.gov (United States)

    Scarlat, Raluca O.; Peterson, Per F.

    2014-01-01

    The fluoride salt cooled high temperature reactor (FHR) is a class of fission reactor designs that use liquid fluoride salt coolant, TRISO coated particle fuel, and graphite moderator. Heavy ion fusion (HIF) can likewise make use of liquid fluoride salts, to create thick or thin liquid layers to protect structures in the target chamber from ablation by target X-rays and damage from fusion neutron irradiation. This presentation summarizes ongoing work in support of design development and safety analysis of FHR systems. Development work for fluoride salt systems with application to both FHR and HIF includes thermal-hydraulic modeling and experimentation, salt chemistry control, tritium management, salt corrosion of metallic alloys, and development of major components (e.g., pumps, heat exchangers) and gas-Brayton cycle power conversion systems. In support of FHR development, a thermal-hydraulic experimental test bay for separate effects (SETs) and integral effect tests (IETs) was built at UC Berkeley, and a second IET facility is under design. The experiments investigate heat transfer and fluid dynamics and they make use of oils as simulant fluids at reduced scale, temperature, and power of the prototypical salt-cooled system. With direct application to HIF, vortex tube flow was investigated in scaled experiments with mineral oil. Liquid jets response to impulse loading was likewise studied using water as a simulant fluid. A set of four workshops engaging industry and national laboratory experts were completed in 2012, with the goal of developing a technology pathway to the design and licensing of a commercial FHR. The pathway will include experimental and modeling efforts at universities and national laboratories, requirements for a component test facility for reliability testing of fluoride salt equipment at prototypical conditions, requirements for an FHR test reactor, and development of a pre-conceptual design for a commercial reactor.

  2. Measuring Organizational Innovation and Technological Innovation Based on High-Tech Enterprises' Adaption Status%高技术企业组织创新与技术创新匹配状态的测度研究

    Institute of Scientific and Technical Information of China (English)

    李靖; 石春生; 刘微微

    2011-01-01

    regulation innovation and two measures of technological innovation: product innovation and process innovation. We conduct a survey and analyze data using the confirmatory factor analysis, and weight methods. The third part measures organizational innovation status and technology innovation status with resource constraints based on the utility theory. This study also analyzes the adaptation parameters and the optimal adaptation status. The fourth part is a case study of a high-tech enterprise. We use this business case to illustrate the status of organizational innovation and technology innovation, and their actual and ideal status. The fifth part summarizes the adaptation status and measures organizational innovation and technology innovation for the studied company.In summary, this study combines survey with the weight method to measure the status of organizational innovation and technology innovation for high-tech enterprises in China. A model is proposed to analyze adaptation parameters, as well as measure the optimal adaptation status, and adaptation status of organizational and technological innovations based on the utility theory. This paper uses the case study method to reveal adaptation mechanisms of organizational innovation and technology innovation in high-tech enterprises.

  3. Dose management in radiology. Review of the technological status; Dosismanagement in der Radiologie. Ein Ueberblick zum Stand der Technik

    Energy Technology Data Exchange (ETDEWEB)

    Verius, M. [LKH Innsbruck, Universitaetsklinik fuer Radiologie, Innsbruck (Austria)

    2015-08-15

    The Euratom directive 2013/59 (''EU directive for radiation protection'') has to be implemented into national law by spring 2018 and requires a complete recording of patient dosages and relevant parameters. Additionally, a medical physics expert has to be consulted for each radiological examination above a defined threshold. A complete recording of the dosage administered from all modalities and optimization of the radiological procedures should result in a reduction of the total dosage. This can be achieved by automated systems that incorporate not only the detection of the dose parameters but also the evaluation and analysis of these data. When provided with warning levels such a system should be able to inform or warn the operator when dose thresholds have been exceeded or even better inform the operator about possible excess dosages before an examination. Depending on the information provided by the modality, dose management systems can operate at different levels in the picture archiving and communication system (PACS), radiological and hospital information systems (RIS/HIS) or with the header information of a digital imaging and communications in medicine (DICOM) image and evaluate and analyze this data. A practicable use of such systems is only possible by close cooperation of medical personnel, medical physicists and information technology (IT) administrators. Various systems are available commercially or free but an individual adaptation of these systems is useful and necessary, depending on the requirements of the radiology practice or hospital. (orig.) [German] Die Euratom-Richtlinie 2013/59 (''EU-Richtlinie zum Strahlenschutz'') besagt, dass sie bis zum Fruehjahr 2018 in nationales Recht der Mitgliedstaaten umgesetzt werden muss, d. h. eine lueckenlose Erfassung der Patientendosen zu erfolgen hat. Ausserdem muss zu jeder Modalitaet in einem bestimmten Ausmass ein Medizinphysikexperte hinzugezogen werden. Die

  4. 多丝焊接技术研究开发的现状%Status of research and development for multiple-wire welding technology

    Institute of Scientific and Technical Information of China (English)

    陈健; 冷冰; 于浩楠

    2015-01-01

    The status of research and development for multiple-wire welding technique at home and abroad are introduced, including the TANDEM double wire GMAW, CMT twin welding, double wire submerged arc weld-ing with single-supply, narrow gap submerged arc welding for ultra thick wall vessel, TRI-ARC welding, double hot wire +cold wire MAG welding, triple-wire high speed GMAW, double wire +cold wire submerged arc welding, triple-wire welding with single power supply, multiple-wire surfacing, multiple-wire submerged arc welding.The corresponding technology is reviewed.The development of multiple-wire welding technology is dis-cussed.%介绍了目前国内外研究开发的多丝焊技术,包括TANDEM双丝焊、冷金属过渡双丝焊、单电源双细丝埋弧焊、超厚壁容器用双丝窄间隙埋弧焊、三电弧双丝焊、双热丝+单冷丝MAG焊、高速三弧MAG焊、双丝+冷丝埋弧焊、单电源三丝焊、多丝堆焊、多丝埋弧焊和缆式焊丝弧焊的研究开发及应用现状,并对相应的技术进行了评述,对今后多丝焊技术的发展进行了讨论。

  5. 航空生物燃料技术发展背景与应用现状%Technology development background and application status on aviation biofuel

    Institute of Scientific and Technical Information of China (English)

    胡徐腾; 齐泮仑; 付兴国; 何皓; 黄格省; 李顶杰

    2012-01-01

    论述了航空生物燃料技术发展背景、技术开发与应用现状,指出能否提供可持续的原料是航空生物燃料应用的关键问题,航空生物燃料将成为我国航空业实现温室气体减排目标的突破口和根本途径;同时为我国航空生物燃料发展提出了建议,认为应继续加大技术研发,通过技术创新不断降低航空生物燃料成本,同时努力扩大航空生物燃料原料来源,积极推动航空生物燃料的工业化生产与应用,为我国航空业的可持续发展和碳减排创造条件。%The technology development background,application status and sustainable supply of raw materials problems about aviation biofuel were discussed.It was pointed out that aviation biofuels will become a fundamental way for China’s aviation industry to realize greenhouse gas emission reduction targets;a proposal on China’s aviation biofuel development was put forward.The conclusion showed that China should further strengthen the technology development,reduce production cost of aviation biofuel through technical R&D,expand raw materials of aviation biofuel,and actively promote the industrialization production and application of aviation biofuel,so as to create conditions for the sustainable development and carbon emission reduction of aviation industry.

  6. Cloud Computing Security:Concept, Status and Key Technologies%云计算安全:概念、现状与关键技术

    Institute of Scientific and Technical Information of China (English)

    段翼真; 王晓程; 刘忠

    2012-01-01

      With the extensive application of cloud computing, its security issues are increasingly prominent. Firstly the paper explains the relevant concepts of cloud computing security, and cloud computing security issues and cloud computing security features are analyzed. And then, cloud computing security status and the typical cloud computing security architecture are introduced, and the key technologies of computing security are analyzed. Finally it gives the conclusion.%  随着云计算的广泛应用,云计算安全问题逐渐凸显出来。文章首先阐述了云计算安全相关概念,并对云计算的安全问题和云计算安全特征进行分析,然后对云计算安全的现状和典型的云计算安全体系架构进行了介绍,并对云计算安全的关键技术进行分析,最后给出了结论。

  7. Research Status of Wind Turbine Blade Deicing Technology%风力机叶片防除冰技术研究现状

    Institute of Scientific and Technical Information of China (English)

    汪根胜; 石阳春; 蒋立波; 刘亮

    2016-01-01

    提出了风力机防除冰的关键部件是叶片,并介绍了风力机叶片覆冰的影响,叶片防冰的主动与被动型方法及其各自的优缺点。重点阐述了憎水涂料防冰法的研究现状,并总结了憎水性涂料防冰的三大主要效果。对目前风力机叶片防除冰技术的主流方法进行了综合评价,并指出了其日后的发展方向。%This paper put forward that the key components of wind turbine deicing was the blade, and introduced the effect of ice covering of the blade, the active and passive methods for wind turbine blade deicing together with their merits and defects. The review focused on the research status of hydrophobic deicing coating method, and summarized three main effects of the hydrophobic deicing coating. Finally, a comprehensive evaluation of the current mainstream method of wind turbine blade deicing technology was conducted, and its future development direction was pointed out.

  8. Technology status of production of SA integrated with cement from phosphogypsum%磷石膏制硫酸联产水泥的技术现状

    Institute of Scientific and Technical Information of China (English)

    鲍树涛

    2011-01-01

    介绍石膏制硫酸联产水泥技术的发展背景、技术现状和鲁北磷石膏制硫酸联产水泥装置的工艺流程、主要设备、原材料要求、中间产品控制、产品质量、稳定操作要点、成本及效益情况,提出推广磷石膏制硫酸联产水泥意义重大。%The development background and technology status of the production of SA integrated with cement from gypsum are introduced. The process, main equipment, demand of raw material, middling product control, product quality, stable operation points, costs and benefits situation for production of SA integrated with cement from phosphogypsum in Lubei Group are introduced, the important significance of popularizing production of SA integrated with cement from phosphogypsum is proposed.

  9. 蛙人运载装备体系发展现状及关键技术%Current Status of Swimmer Delivery Equipment System and Key Technologies

    Institute of Scientific and Technical Information of China (English)

    王帅; 刘涛

    2012-01-01

    Swimmer delivery equipment is a new type of weapon equipment applied in special naval forces nowadays. Various countries have paid great attention to the development of the equipment since the end of World War II. First the current status of swimmer delivery equipment system including diver propulsion vehicle (DPV) , swimmer/SEAL delivery vehicle (SDV) , dry deck shelter (DDS) and advanced SEAL delivery system (ASDS ) is reviewed. Then the key technologies of swimmer delivery equipment at present stage are listed in detail.%蛙人运载装备是海军特种部队的新型武器装备,在二次世界大战后受到各国广泛重视.首先对近年来国外蛙人运载装备体系包含的小型蛙人推进装置( DPV)、湿式蛙人输送艇(SDV)、干甲板掩蔽舱(DDS)以及大型干式蛙人运载器(ASDS)的研制现状进行综述,然后详细列举了现阶段蛙人运载装备的关键技术.

  10. Web 应用的安全现状与防护技术研究%Security Status and Protection Technology of Web Applications

    Institute of Scientific and Technical Information of China (English)

    龙兴刚

    2013-01-01

      随着互联网技术的发展,Web 技术得到了日益广泛的应用,越来越多基于 Web 应用的系统被部署在互联网上以提供各式各样的服务,由于互联网本身的开放性使其时刻面临着潜在恶意攻击,其安全性问题日益突出。在这样的背景下,进行 Web 应用安全现状与防护技术的研究具有很强的现实意义,为了提高 Web 安全性,建立健全 Web 防护体系,这里从客户端、服务器端和传输三方面对当今 Web 应用所面临的安全威胁进行了系统地分析,并针对各自面临的常见安全威胁提出了相应的安全防护方案和防护建议。%With the development of Internet technology, Web technology is increasingly used, and more and more Web-based application systems are deployed on the Internet to provide various services. Due to its openness, the Internet itself always faces various potential malicious threats, and its security issues become fairly prominent. In this context, the research on Web application security status and protection technology is of strong practical significance, and in order to improve security and establish strong protection system, the security threats encountered with by Web applications are analyzed from the three aspects of client, server and the transmission, and the corresponding security protection schemes and protective measures for common security threats also proposed.

  11. 汽车新技术的应用现状与发展趋势探析%The Application Status and Development Trend of New Technology of Automobile Huang Zhirong

    Institute of Scientific and Technical Information of China (English)

    黄志荣

    2015-01-01

    With the development of automobile technology, people put forward higher requirements on the operation, comfort and safety of automobile. Network technology, electronic technology, intelligent technology, control technology, and so on, has been applied to the automobile, the development of the automobile industry technology has brought a more safe and comfortable car. The development of various new technologies will continue to change the automotive technology. The status quo and development trend of the application of new technology of automobile.%随着汽车技术的发展,人们对汽车的操纵性、舒适性和安全性提出了更高的要求。网络技术、电子技术、智能技术、控制技术等不断被应用于汽车上,汽车行业技术的发展给消费者带来了更加安全、舒适的汽车。各种新技术的发展必将不断改变汽车技术。对汽车新技术的应用现状和发展趋势进行了探析。

  12. Nuclear waste incineration technology status

    Energy Technology Data Exchange (ETDEWEB)

    Ziegler, D.L.; Lehmkuhl, G.D.; Meile, L.J.

    1981-07-15

    The incinerators developed and/or used for radioactive waste combustion are discussed and suggestions are made for uses of incineration in radioactive waste management programs and for incinerators best suited for specific applications. Information on the amounts and types of radioactive wastes are included to indicate the scope of combustible wastes being generated and in existence. An analysis of recently developed radwaste incinerators is given to help those interested in choosing incinerators for specific applications. Operating information on US and foreign incinerators is also included to provide additional background information. Development needs are identified for extending incinerator applications and for establishing commercial acceptance.

  13. Research Status of Processing Technology of Laminated Metal Composite%层状金属复合材料加工技术研究现状

    Institute of Scientific and Technical Information of China (English)

    田广民; 李选明; 赵永庆; 刘彩利; 贺林娜; 刘啸锋

    2013-01-01

    Three processing technologies of clad metal composite explosive welding method , rolling cladding and explo-sions-rolling cladding are summarized.Relevant technology research of the mechanism of explosive welding , ways of initia-tion, preparation of explosives, preferences and etc is described;the hot rolling cladding, cold rolling cladding with con-stant roller diameter and other technical status quo is discussed; the key of the explosion-rolling composite technology is selection of explosive welding parameter, even fraction between the metal layers, determination of the rolling process pa-rameters and so on.The development direction of the layered metal composite materials processing technology is:the com-plex structure of the material, increase damage tolerance and high composite toughening;functional integration, structural materials and functional materials interpenetration, comprehensive integration;high performance, and further improve spe-cific strength and specific modulus; intelligent, merging materials, structures and electrons; cost reduction-from the past mainly concerned with performance and quality to turn to reduce the cost .%概述了层状金属复合材料的爆炸焊接复合法、轧制复合法和爆炸-轧制复合法3种加工技术。介绍了爆炸焊接复合的机理研究及布药、起爆方式、炸药配制、参数选择等工艺技术研究;论述了轧制复合法的热轧复合、等辊径等辊速冷轧复合、等辊径等辊速冷轧复合的技术现状;探讨了爆炸-轧制复合技术的关键是爆炸焊接参数的选择、金属层之间均匀的牵引力、轧制工艺参数确定等。指出了层状金属复合材料加工技术的发展方向是:使材料结构复杂化,提高损伤容限,实现复合材料的韧化;功能一体化,结构材料和功能材料的相互渗透、综合集成;高性能化,进一步提高比强度、比模量;智能化,材料、结构和电子相互融合;低成

  14. On the present status and prospect of pipeline vibration control technology%管道振动控制技术现状及展望

    Institute of Scientific and Technical Information of China (English)

    宋维源; 肖挺杨; 李吉

    2012-01-01

    This paper presents its research findings on the pipeline vibration control technology, which is widely used in a lot of engineering fields and daily life. For our research goal, we have first of all made a brief introduction to the research status quo of the pipeline vibration mechanism, and then a particular commentary on the tech- nology. Of all kinds of such technologies, we are to study how to control the vibration of pipeline by using dynamic vibration absorbers (DVA), including the active DVA and the passive DVA. The so-called active DVA can be said to follow the stimulating variation principle both in frequency and amplitude so as to widen its working frequency band and make its action more effectively than the passive one in the control. On the other hand, the active DVA does not only usually demand a complicated design of the structure and in turn a higher manufacturing cost, but also relies on the external energy support and acquisition of critical vibration data and control strategy. However, in comparison with the active DVA, the passive DVA is structurally simple and stable in performance, and therefore more widely used for practical purposes. It is just for such purposes that it is necessary to increase the range of its working frequency. And, from the above considerations, we think it of great need to put forward a number of methods and technologies, such as M - SDOF - DVAs ( Multiple Sin-gle-degree-of-freedom DVAs) , MDOF - DVA ( Multi-degree-of-free-dom DVA) , continuous parameter DVA and non-linear DVA to improve the current situation, among which MDOF- DVA and non-linear DVA are just two important directions for future research. In addition , we have also brought about another kind of technology to improve the structure and material of the pipeline, for we believe that a suitable design of the structure of the pipe will surely help to effectively avoid the incidence of resonance. The reason of our choice is that there may exist possibility to

  15. 经颅磁刺激技术的基本原理及应用现状%Principles and Application Status of Transcranial Magnetic Stimulation Technology

    Institute of Scientific and Technical Information of China (English)

    张卫东

    2014-01-01

    经颅磁刺激(TMS)技术是一种通过放置在头部表面的通电线圈来刺激人脑的技术,可通过调制大脑皮层神经元的膜电位来影响和改变大脑功能。TMS是一种无痛、无创的治疗方法,可有效应用于心理疾病、精神疾病以及神经疾病的诊断与治疗,目前已在精神心理学及康复医学领域得到了广泛应用。本文简述了TMS的基本原理,并对其临床应用的现状和前景进行了归纳和总结。%Transcranial magnetic stimulation (TMS) is the technology of stimulating human brain through a coil placed on the surface of the head. It can modulate membrane potential of cortical neurons to inlfuence and change the functions of human brain. TMS is a painless, non-invasive treatment method which can be effectively used in the diagnosis and treatment of psychological illness, mental illness and neurological diseases. Now TMS has been widely used in the ifelds including mental psychology and rehabilitation medicine. This paper describes the basic principles of TMS, and summarizes the status quo and prospect of clinical application of TMS.

  16. 生物质颗粒燃料燃烧技术发展现状及趋势%Development status and trends of biomass pellet combustion technology

    Institute of Scientific and Technical Information of China (English)

    徐飞; 侯书林; 赵立欣; 田宜水; 孟海波

    2011-01-01

    生物质颗粒燃料燃烧器具有热效率高,污染物排放量低,控制性好等优点,可以用于家庭取暖、热水、工业干燥等领域.目前国外生物质颗粒燃料燃烧器已发展成熟,但我国在这方面还有一定差距.通过分析典型生物质颗粒燃烧器的构造,以及点火方式和控制系统,指出国内目前存在燃烧器自动化程度低,核心技术缺乏,原料适应性差,相关技术标准缺乏等问题,最后提出加快点火和自控系统研发,制定行业标准等建议.%This paper takes its research interest in providing an overview of the status quo of the biomass pellet combustion technology and its future prospects. As is known, biomass pellet fuel is a kind of high-quality renewable energy resource that can be adopted to replace some primary energy resources like coal. Due to its high thermal efficiency, low emission and convenient controllability, it can be used for house warm-keeping, water-heating, industrial products-drying and so on, which accounts for its fast development both at home and abroad, particularly in recent years. Nevertheless, large gaps still exist between us and the industrially-developed countries, particularly between us and the European countries. As the structure of this kind of fuel is concerned, it is composed of 6 components: its first component is the feeding system, which is used to transport the pellet from silo to the pellet burner; the second component is ignition system,which functions as an igniter of the fuel; the third one is air distribution system, which provides the gas for combustion; the fourth is combustion tube, in which the combustion takes place; the fifth is clean-up system for driving the slag during combustion, while the last component works as a controller, which is the heart of the pellet burner. Thus, analyzing the structure, ignition and controlling system of a typical pellet burner, it can be found that there still exist some problems in the pellet

  17. 油套管腐蚀与防护技术发展现状%Current Status of Casing/Tubing Corrosion and Protection Technology

    Institute of Scientific and Technical Information of China (English)

    王军; 毕宗岳; 张劲楠; 王燕; 李超; 白鹤; 何石磊; 王涛

    2013-01-01

    介绍了国内外油套管腐蚀与防护的研究现状,分析了油气田开发过程中溶解气体腐蚀、细菌腐蚀、溶解盐腐蚀和温度、pH值及流速对油套管腐蚀的影响,探讨了国内外耐蚀合金、表面涂镀层、阴极保护及加注缓蚀剂等防腐技术的特点及其在油气开采中的应用.最后指出,油气井腐蚀环境不尽相同,每种防腐技术都有其使用条件的局限性,应该建立完善的并下监测系统,准确分析油气井管柱服役环境,针对不同的油气开采环境,选择适当的措施进行综合防护.%The current status of casing/tubing corrosion and protection at home and abroad were introduced.The influence of dissloved gas corrosion,bacterial corrosion,dissolving salt corrosion and temperature,PH value and flow velocity on casing/tubing corrosion were analyzed during oil and gas field development course,and the characteristics of corrosion resistant alloy,surface coating,cathodic protection and injecting corrosion inhibitor,as well as their application,were discussed.In the end,it pointed that the corrosion environment of oil well is not completely same with that of gas well,the service conditions of each corrosion resistance technology has its limitation.It should establish perfect underground monitoring system,accurately analyze service environment of oil and gas well tubularstring,and should select appropriate measures to conduct comprehensive protection for different oil and gas exploitation environment.

  18. 辐照技术在环境保护中的研究现状及应用情况分析%Analysis on Research and Application Status of Irradiation Technology in Environmental Protection

    Institute of Scientific and Technical Information of China (English)

    赵俊超; 贾明慧; 董晓晴

    2016-01-01

    To study the application of irradiation technology in environmental protection,research status of irradiation technology in environmental protection in China was analyzed from three aspects,including academic papers,scientists and research institutions and relative conclusions were obtained.Advices for the development of irradiation technology were proposed based on both foreign and domestic application status of the technology.The data in the paper were collected from CNKI(China National Knowledge Infrastructure),VIP database and WANFANG database.%以辐照技术在环境保护中的应用为重要研究领域,从学术论文、科学家主体、研究机构主体三方面对国内辐照技术在环境保护中的研究现状进行分析,得出相关结论,同时借鉴国外的应用情况,提出辐照技术今后发展的意见建议。分析数据均取自中国知网、维普、万方数据库的文献数据。

  19. 基于数据挖掘技术的掘进机工况监测数据分析系统%Data Analysis System of Roadheader Status Monitoring Based on Data Mining Technology

    Institute of Scientific and Technical Information of China (English)

    王德光

    2011-01-01

    A data analysis system of roadheader status monitoring was built by use of data mining technology. The system collects status parameters of mechanism system, hydraulic pressure system,electrical system and transmission system of roadheader through data collection system of roadheader status monitoring, sends the parameters to data analysis platform of roadheader status monitoring through Internet, and mines and analyzes the parameters by use of data mining technology on the data analysis platform. The system can realize functions of remote maintenance and fast fault location and processing,and updates analyzing experience base of working status data of roadheader, which provides knowledge experience support for fault processing of roadheader.%应用数据挖掘技术构建了一套掘进机工况监测数据分析系统.该系统通过掘进机工况监测数据采集系统采集掘进机机械系统、液压系统、电气系统、传动系统的工况参数,并将这些参数通过互联网发送到掘进机工况监测数据分析平台,在该平台上应用数据挖掘技术分析、挖掘掘进机工况参数,实现掘进机的远程维护和快速故障定位及故障处理,并对掘进机工况运行数据分析经验库进行学习更新,为掘进机故障处理提供知识经验支持.

  20. Application Status and Trend on Anaerobic Digestion Technology Development of Sludge%污泥厌氧消化技术发展应用现状及趋势

    Institute of Scientific and Technical Information of China (English)

    李琳

    2013-01-01

    The article brielfy introduces the situation of sludge anaerobic digestion technology;makes detailed description on the main research development and application status of the technology abroad and at home according to the emphasizing point in U.S.A., EU and Japan; analyzes and prospects the research key point and development trend of sludge anaerobic digestion technology in our country.%简介了污泥厌氧消化技术的情况;以美国、欧盟和日本为侧重点,对该技术在国内外的主要研究进展和应用现状做了较详细的描述;提出了国内的污泥厌氧消化技术研究重点,展望了该技术的发展趋势。

  1. The Development Status and Application Prospect of Power Line Carrier Communication Technology%电力线载波通信技术发展现状及其应用前景

    Institute of Scientific and Technical Information of China (English)

    马晓奇

    2014-01-01

    在分析电力线载波通信技术特点的基础上,总结了电力线载波通信技术的发展现状以及应用,并对其在集中抄表系统以及智能家庭网络的应用进行了可行性分析,最后还对该技术的发展趋势进行了展望。%Basing on the analysis of power line carrier communication technology characteristics, the development status and present application of power line carrier communication technology are reviewed. The feasibility analysis of its application on the automatic meter reading system and intelligent home network is made. The development prospect of the power line carrier communication technology is given in the end of this paper.

  2. The effects of information and communication technology on at risk children of low economic status: Make It-Take It After-School Case Study

    National Research Council Canada - National Science Library

    Shahram Amiri

    2009-01-01

    The Institute for the Study of Digital Inclusion (ISDI) promotes digital inclusion through dispersion of computers and promotion of digital literacy to at risk children of low economic status within the State of Florida...

  3. Quantitative peptidomic analysis by a newly developed one-step direct transfer technology without depletion of major blood proteins: its potential utility for monitoring of pathophysiological status in pregnancy-induced hypertension.

    Science.gov (United States)

    Araki, Yoshihiko; Nonaka, Daisuke; Tajima, Atsushi; Maruyama, Mayuko; Nitto, Takeaki; Ishikawa, Hitoshi; Yoshitake, Hiroshi; Yoshida, Emiko; Kuronaka, Noriko; Asada, Kyoichi; Yanagida, Mitsuaki; Nojima, Michio; Yoshida, Koyo; Takamori, Kenji; Hashiguchi, Teruto; Maruyama, Ikuro; Lee, Lyang-Ja; Tanaka, Kenji

    2011-07-01

    We have recently developed a new target plate (BLOTCHIP®) for MALDI-MS. An advantage of this procedure is that it does not require the lowering of protein concentrations in test samples prior to analysis. Accordingly, this new technology enables the detection of peptides present in blood samples, including those that would otherwise be adsorbed to abundant blood proteins and would thus escape detection. Using this technology, we analyzed the peripheral blood of patients with pregnancy-induced hypertension (PIH; the most common serious complication of pregnancy) to test a potential utility of the technology for monitoring of the pathophysiological status. In the present study, we found 23 characteristic peptides for PIH in the blood serum of pregnant women. Offline LC-MALDI MS/MS identified 7 of the 23 peptides as fragments derived from kininogen-1 (three peptides), fibrinogen-α, complement component C4-A/B, α-2-HS-glycoprotein and inter-α-trypsin inhibitor heavy chain H4. 2-D scatter plots with combinations of the peptides found in the present study can be grouped for pregnant women with/without PIH, which would be satisfactory reflected for their status. Additionally, the levels of most of these peptides found were significantly decreased by albumin/IgG depletion prior to BLOTCHIP® analysis in accordance with conventional proteomics procedures. These results indicated that BLOTCHIP® analysis can be applied for discovery study of PIH biomarker candidates.

  4. The competitive status of the U.S. fibers, textiles and apparel complex: a study of the influences of technology in determining international industrial competitive advantage

    National Research Council Canada - National Science Library

    Committee on Technology and International Economic and Trade Issues

    1983-01-01

    ... of the Influences of Technology in Determining International Industrial Competitive Advantage Prepared by the Fibers, Textiles, and Apparel Industry Panel, Committee on Technology and International Economic and Trade Issues of the Office of the Foreign Secretary, National Academy of Engineering and the Commission on Engineering and Technical...

  5. Current Status and Progress of Coal Gasification Technology%煤气化技术的发展现状及研究进展

    Institute of Scientific and Technical Information of China (English)

    陈俊峰

    2012-01-01

    The importance of coal gasification technology was elucidated after the raise of clean coal technology conception based on the energy utilization and environment situation in China.Some typical industrialized coal gasification technologies were reviewed,and the latest progress of coal gasification technology was summarized.Finally,the development orientation and trend of coal gasification technology were presented.%从我国能源利用及环境现状出发,由洁净煤技术概念引出煤气化技术的重要性,介绍了当前典型的商业化运用的煤气化技术,总结了煤气化技术的一些最新研究进展情况,最后展望了未来我国煤气化技术的发展方向及趋势。

  6. NASA Armstrong Status

    Science.gov (United States)

    Jacobson, Steven R.

    2014-01-01

    Armstrong (formerly Dryden) Flight Research Center continues it's legacy of exciting work in the area of dynamics and control of advanced vehicle concepts. This status presentation highlights the research and technology development that Armstrong's Control and Dynamics branch is performing in the areas of Control of Flexible Structures and Automated Cooperative Trajectories.

  7. 手机技术现状及发展局限性%Mobile Phone Technology Status and Development Limitations Sexual

    Institute of Scientific and Technical Information of China (English)

    宁丽华

    2013-01-01

    Guangzhou new communications equipment limited company The technology continues to update promoted constantly update and progress of the mobile phone, mobile phone technology have gradually been widespread concern, At the same time, the development of mobile phone technology provides strong support for the progress of society. This article the author analyzes the current situation of the development of mobile phone technology, and then explore the limitations of the development of mobile phone technology, and the healthy development of the mobile phone technology strategy put forward some proposals, in order to provide guidance and reference for the development of mobile phone technology%  技术的不断更新促进了手机的不断更新和进步,手机技术逐渐受到人们的普遍关注,同时,手机技术的发展为社会的进步提供了有力的支持。对手机技术的发展现状进行了分析,探讨了手机技术发展的局限性,并对手机技术的健康发展策略提出了一些建议,以便为手机技术的发展提供指导和借鉴。

  8. Excimer Laser Technology

    CERN Document Server

    Basting, Dirk

    2005-01-01

    This comprehensive survey on Excimer Lasers investigates the current range of the technology, applications and devices of this commonly used laser source, as well as the future of new technologies, such as F2 laser technology. Additional chapters on optics, devices and laser systems complete this compact handbook. A must read for laser technology students, process application researchers, engineers or anyone interested in excimer laser technology. An effective and understandable introduction to the current and future status of excimer laser technology.

  9. 建筑给排水技术应用现状及发展趋向%The technology status and development trend of buildings water supply and drainage

    Institute of Scientific and Technical Information of China (English)

    田维章

    2015-01-01

    Through the analysis on the status current building water supply and drainage system,from the water supply,drainage,technology and hot water supply perspective elaborated the development direction and trend of buildings drainage technology,so as to positive innovation of water supply and drainage system,continuously improved and prefect the traditional process,promoted the benign development of water supply and drainage system.%通过分析当前建筑给排水系统的状况,从给水、排水、技术及热水供应角度阐述了建筑给排水技术的发展方向和趋势,以积极创新给排水系统,不断改进与完善传统工艺,促进给排水系统的良性发展。

  10. Danish SDHW Technology

    DEFF Research Database (Denmark)

    Furbo, Simon

    1996-01-01

    The status of Danish technology for solar heating systems for hot water supply as well as R&D work in the field is presented.......The status of Danish technology for solar heating systems for hot water supply as well as R&D work in the field is presented....

  11. Science and Technology Policy

    DEFF Research Database (Denmark)

    Baark, Erik

    1996-01-01

    This paper examines the status of science and technology in Mongolia, and discusses the policy issues which have emerged with the transition to market economy in recent years.......This paper examines the status of science and technology in Mongolia, and discusses the policy issues which have emerged with the transition to market economy in recent years....

  12. 我国煤层气勘探与开发技术现状及发展方向%Status and Development Orientation of Coal Bed Methane Exploration and Development Technology in China

    Institute of Scientific and Technical Information of China (English)

    秦勇; 袁亮; 胡千庭; 叶建平; 胡爱梅; 申宝宏; 程远平; 何学秋; 张遂安; 李国富; 张群

    2012-01-01

    介绍了煤层气勘探与开发技术体系的内涵,分析了我国煤层气勘探开发技术的现状与存在的问题,包括煤层气资源勘探技术、煤层气地面井增产技术、煤层气地面井排采技术、煤层气矿井抽采及煤气共采技术。针对煤层气勘探与开发的技术需求,对煤层气勘探与有利区块优选技术、以沁水和鄂尔多斯2个盆地为主的中~高煤阶地区煤层气增产技术、低煤阶地区煤层气单井增产与规模性开发技术、多煤层及构造煤地区煤层气地面井开发技术、煤炭与煤层气协同开采技术的近期、中期、远期规划提出了研究建议。%The paper introduced the connotation of the coal bed methane exploration and development system and analyzed the present status and problems of the coal bed methane exploration and development technology in China, including the coal bed methane resources exploration technology, the production improvement technology of the coal bed methane surface well, the gas drainage technology of coal bed methane surface well, the mine coal bed methane drainage, coal and gas jointly mining technology. According to the technical re- quirements of the coal bed methane exploration and development, the paper provided the study proposals on the coal bed methane explora- tion and the optimum technology of the favorable zone and block, the coal bed methane production improvement technology of the medium ~ high rank coal area mainly based on the Qinshui and Erdos basins, the coal bed methane well production improvement and the scale development technology of the low rank coal area, the coal bed methane surface well development technology of multi seam andstructure coal area, the short-term, medium-term and long-term planning of the coal and coal bed methane joint mining technology.

  13. Current status, research needs, and opportunities in applications of surface processing to transportation and utilities technologies. Proceedings of a December 1991 workshop

    Energy Technology Data Exchange (ETDEWEB)

    Czanderna, A.W.; Landgrebe, A.R. [eds.

    1992-09-01

    Goal of surface processing is to develop innovative methods of surface modification and characterization for optimum performance and environmental protection for cost-effective operational lifetimes of systems, materials, and components used in transportation and utilities. These proceedings document the principal discussions and conclusions reached at the workshop; they document chapters about the current status of surface characterization with focus on composition, structure, bonding, and atomic-scale topography of surfaces. Also documented are chapters on the current status of surface modification techniques: electrochemical, plasma-aided, reactive and nonreactive physical vapor deposition, sol-gel coatings, high-energy ion implantation, ion-assisted deposition, organized molecular assemblies, solar energy. Brief chapters in the appendices document basic research in surface science by NSF, Air Force, and DOE. Participants at the workshop were invited to serve on 10 working groups. Separate abstracts were prepared for the data base where appropriate.

  14. Development of inherent technologies for advanced PWR core - A study on the current status and the construction feasibility of critical facilities

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Won Sik; Yang, Hyun Seok [Chosun University, Kwangju (Korea); Kim, Chang Hyo; Shim, Hyung Jin [Seoul National University, Seoul (Korea)

    1999-03-01

    The objective of this study is to examine the appropriateness of constructing critical facilities in our country and to decide a course of constructing them if necessary by surveying the status and utilization of foreign facilities and by investigating the demand for domestic facilities. We investigated the status and the utilization of foreign critical facilities through literature survey and personal visitation. In our judgement, critical facilities are necessary for developing the advanced reactors and fuels which are being studied as parts of the Nuclear R and D Program by MOST. Considering the construction cost and the current state of domestic economy, however, it is unjustifiable to build three different types of critical facilities (the light water, the heavy water, and the fast critical facility). It appears to be reasonable to build a light water critical, considering the construction cost, degree of utilization, and other constraints. (author). 89 refs., 134 figs., 64 tabs.

  15. Analysis of Exoskeleton Assist Robot Research Status and Key Technology%外骨骼助力机器人研究现状与关键技术分析

    Institute of Scientific and Technical Information of China (English)

    周加永; 莫新民; 张昂; 孟小净; 赵浩; 纪平鑫

    2016-01-01

    According to the research work of accumulation and access to relevant literature,study on the status quo of exoskeleton at home and abroad were summarized,and the exoskeleton assist robot of structure techniques, driving control technology, sensor technology, energy technology and security technology and so on were analyzed,and the application prospect of exoskeleton assist robot in the military field,medical field and the industrial field were analyzed.%根据研究工作积累和查阅相关文献资料,对外骨骼助力机器人国内外的研究现状进行了总结,对外骨骼助力机器人所涉及的机械结构技术、驱动技术、传感控制技术、能源技术以及安全性技术等关键技术进行了分析,并对外骨骼助力机器人在军事领域、医疗领域和工业领域的应用前景进行了展望。

  16. Study status of vacuum preloading soft-soil foundation reinforcing theory and technology%真空预压软土地基加固理论和技术研究现状

    Institute of Scientific and Technical Information of China (English)

    王成保; 苌宽; 张玉国

    2016-01-01

    The paper introduces basic working principles of vacuum preloading method,discusses research status of vacuum preloading soft-soil foundation reinforcing theory and construction technology,analyzes problems existing in vacuum preloading soft-soil foundation construction,and finally points out that:the combination of vacuum preloading technology,monitoring technology and information constructing technology will be good for realizing whole-process construction monitoring,so as to improve social and economic benefits of the project.%介绍了真空预压法的基本工作原理,论述了真空预压软土地基加固理论及施工工艺的研究现状,分析了真空预压软土地基施工中存在的问题,指出将真空预压工艺、监测技术与信息化施工技术相结合,有助于实现施工过程的全面监测,从而提高工程的社会经济效益.

  17. 深水油气科技发展现状与趋势%Development Status and Trends of Science and Technology of Deepwater Oil and Gas

    Institute of Scientific and Technical Information of China (English)

    赵纪东; 郑军卫

    2013-01-01

    作为全球未来油气资源的主要接替区,海洋深水区已成为很多国家的战略要地.相比于陆地和浅水区而言,科学技术在深水油气勘探开发中的作用更加突出.通过对深水油气地质特征、勘探技术(地震技术和非地震技术)和开采技术(立管技术、开发井钻井技术及完井采油技术)发展现状的系统调研和深入分析,结合主要国际石油公司的发展规划、近年召开的国际著名油气会议和油田技术服务公司取得的试验成果,总结归纳出深水油气科技四大发展趋势,同时对我国在该领域的发展提出了几点建议.%As major substitution to supply oil and gas resources for human needs,deepwater (also known as deepsea) has become strategic places for many countries.Compared to land and shallow waters,science and technology play an important role in the exploration and development of deepwater oil and gas.By systemic research and detailed analysis of geological characteristics,exploration technology (seismic technology and non-seismic technology) and mining technology (risers technology,development wells' drilling technology,completion and recovery technology) of deepwater oil and gas,future trends of the science and technology of deepwater oil and gas were summarized in combination with the development plans of major international oil companies.Also shown are the themes of the famous international conferences about oil and gas held in recent years and test results obtained by oilfield service companies.At the same time,a few suggestions for China's future development in the field were proposed.

  18. Status and Outlook of Key Technology for Automation Coal Mining Face in Thin Seam%薄煤层自动化工作面关键技术现状与展望

    Institute of Scientific and Technical Information of China (English)

    田成金

    2011-01-01

    According the automatic coal mining face with a coal shearer in a thin seam and the automatic coal mining face with a coal plough in a thin seam,a brief analysis and summarization was conducted on the application status of the related automatic key technology and the restricted factors.An analysis was conducted on the coal and rock interface identification,the automatic lining technology of the coal mining face equipment,the posture detection and control technology,the plough head detection technology,the plough head control technology and other automatic mining key technology needed to be broken through in the present automatic coal mining face in China.Some technical difficulties needed to be solved in the next development of the automatic coal mining face were provided.The paper summarized the present study status of those technical difficulties and provided the further study orientation.%针对我国采煤机薄煤层自动化工作面和刨煤机薄煤层自动化工作面,就其中涉及的自动化关键技术应用现状与制约因素进行了概括性的分析与总结,对我国现阶段自动化工作面中急需突破的煤岩界面识别、工作面设备自动找直技术、姿态检测控制技术、刨头检测技术、刨头控制技术等自动化开采关键技术进行分析,提出自动化工作面下一步发展迫切需要解决的一些技术难题,总结这些技术难题的研究现状,并提出下一步的研究方向。

  19. 空气净化技术现状及其发展趋势刍议%Discussion on Status and Development Tendency of Air Purification Technology

    Institute of Scientific and Technical Information of China (English)

    杨晓平

    2015-01-01

    Firstly, the operating theory about several kinds of popular air purification technology is introduced in this paper. It also studied the advantages and disadvantages of these function in practical application. Secondly, it puts the emphasis on the new direction of air cleaning technology, and states the basic theory of water-washing air. Finally, the development trends of purification technology are discussed and summarized.%首先,介绍目前市场上流行的若干种空气净化技术工作原理,分析这些净化技术在实际应用中的优缺点。其次,重点阐述空气净化技术的新方向———“水洗空气”的基本原理,最后对净化技术发展趋势进行展望和总结。

  20. Technology Status-quo and Development Direction of PVC Pipes%国内外PVC管技术现状及发展方向

    Institute of Scientific and Technical Information of China (English)

    李成吾; 左继成

    2015-01-01

    The molding technology of PVC pipes, toughening technology of PVC resin used in PVC pipes and assistants of PVC pipes were introduced. According to research and application of PVC pipes at home and abroad, it’s pointed out that, to develop PVC-M and PVC-O pipes is inevitable trend. The production technology of the foreign PVC-M pipes and PVC-O pipes has gradually matured. Compared with foreign, the production technology of the domestic PVC-M pipes is little different, but the production technology of the domestic PVC-O pipes is still in the laboratory research stage. In the next coming years, the domestic PVC plastic pipe industry must vigorously develop PVC-M pipes, and must strengthen the cooperation with scientific research institutes to develop the technology of PVC-O pipes as early as possible.%介绍了PVC管材的成型技术、PVC管材用树脂增韧改性技术以及PVC管材用助剂发展趋势。纵观国内外的研究和应用,发展PVC-M管和PVC-O管是必然趋势。国外PVC-M管和PVC-O管生产技术已渐进成熟,国内PVC-M管生产技术与国外差别不大,但国内PVC-O管生产技术仍停留在实验室研究阶段。今后几年,国内PVC管业应大力发展PVC-M管,应加强与科研院所合作,尽快开发出PVC-O管生产技术。

  1. Status report on energy recovery from municipal solid waste: technologies, lessons and issues. Information bulletin of the energy task force of the urban consortium

    Energy Technology Data Exchange (ETDEWEB)

    None

    1980-01-01

    A review is presented of the lessons learned and issues raised regarding the recovery of energy from solid wastes. The review focuses on technologies and issues significant to currently operating energy recovery systems in the US - waterwall incineration, modular incineration, refuse derived fuels systems, landfill gas recovery systems. Chapters are: Energy Recovery and Solid Waste Disposal; Energy Recovery Systems; Lessons in Energy Recovery; Issues in Energy Recovery. Some basic conclusions are presented concerning the state of the art of energy from waste. Plants in shakedown or under construction, along with technologies in the development stages, are briefly described. Sources of additional information and a bibliography are included. (MCW)

  2. [The study of functional status in the perception of visual information depending on the method of technical color mixing on LCD and DLP projectors technology].

    Science.gov (United States)

    Merkulova, A G; Osokina, E S; Bukhtiiarov, I V

    2014-10-01

    The case of compare two ways of projection color visual images, characterized by different spatial-temporal characteristics of visual stimuli, presents the methodology and the set of techniques. Received comparative data, identifying risks of regulation disorder of the functional state and development general, mental and visual fatigue during prolonged strenuous visual activity, according to two types of test tasks, which are the most typical for the use of modern projectors to work with the audience, both inthe process of implementation of learning technologies and the collective take responsible decisions by expert groups that control of complex technological processes.

  3. 污废水生物脱氮除磷技术研究进展%Research Status of Technologies for Nitrogen and Phosphorus Removal by Biological Processes

    Institute of Scientific and Technical Information of China (English)

    刘启承

    2013-01-01

      总结了目前城市污水生物脱氮除磷技术研究及应用进展,分析了脱氮除磷工艺机理及其特点,探讨了城市污水生物脱氮除磷工艺深入研究的方向。%This paper reviews the advances in the biological nitrogen and phosphorus removal technologies for municipal wastewater .The mechanism and characteristics of nitrogen and phosphorus removal processes are analyzed , and directions of studying the biological nitrogen and phosphorus removal technologies are also discussed .

  4. 现代玉米育种技术研究进展与前瞻%Current Status and Perspectives of Maize Breeding Technologies

    Institute of Scientific and Technical Information of China (English)

    董春水; 才卓

    2012-01-01

    Over the last 30 years, maize breeding technology had advanced in many areas. Molecular markers, doubled haploid and biotechnology had been widely applied. Many methodology breakthroughs had been made in maize inbred and hybrid breeding. Here we provided the concise reviews of several major maize breeding technologies, including molecular breeding, progeny selection methods, transgenic breeding technology, doubled haploid and so on. We also generated a list of prospects in corn breeding technologies for next 10 - 20 years.%过去的30年里玉米育种技术取得了长足的发展.分子标记、生物技术、双单倍体等得到了快速发展与广泛应用,自交系和杂交种的选育方法发生了飞跃.本文就分子育种技术、后代选择方法、转基因育种技术、双单倍体技术等方面进行概括总结,并展望未来10~20年玉米育种技术发展的前景.

  5. Current Status and Future Prospect of 3d Printing Technology in Construction%3D打印建筑技术的现状及展望

    Institute of Scientific and Technical Information of China (English)

    陈敬

    2015-01-01

    As a frontier and the origin of emerging technology, 3D printing technology has greatly changed the traditional production mode.3D printing construction technology is an important direction in the development of the construction industry.This paper summarizes the latest development of 3D printing construction technology at home and abroad, and points out the technical problems and research directions of 3D printing construction.%3D打印技术作为具有前沿性、先导性的新兴技术,极大改变了传统的生产制造方式,3D打印建筑技术是建筑行业发展的一个重要方向。本文综述了国内外3D打印建筑技术的最新进展,指出3D打印建筑存在的技术难题及研究方向。

  6. The Competitive status of the U.S. auto industry: a study of the influences of technology in determining international industrial competitive advantage

    National Research Council Canada - National Science Library

    Automobile Panel of the Committee on Technology; National Research Council Staff

    ... International Industrial Competitive Advantage Prepared by the Automobile Panel, Committee on Technology and International Economic and Trade Issues of the Office of the Foreign Secretary, National Academy of Engineering and the Commission on Engineering and Technical Systems, National Research Council William J. Abernathy, Chairman Kim Clar...

  7. 垃圾焚烧飞灰处理技术现状与展望%Status and Prospect of the Treatment Technologies of MIWS Fly Ash

    Institute of Scientific and Technical Information of China (English)

    姚刚

    2014-01-01

    Fly ash from municipal solid waste incineration (MSWI) is hazardous waste with large quantity of heavy metals and dioxins. If it was not properly disposed, it will have a serious impact on human health and the envi-ronment. In this paper, several well known treatment technologies of MSWI fly ash were described, and the character-istics of these technologies, their advantages and disadvantages were introduced in detail. Finally, recycling, reduc-tion, harmless proper treatment methods, including the technology of MSWI fly ash sintered ceramisite and the tech-nology of recovery heavy metal from MSWI fly ash with UASB or EGSB, had a greater potential for future applica-tions.%城市垃圾焚烧飞灰是含有大量重金属和二噁英的危险废物,若不妥善处置,将对人类健康和生活环境造成严重影响。目前常用的垃圾焚烧飞灰处理处置方法,综合分析了其特点和优缺点,并指出飞灰烧制陶粒技术和利用UASB 和 EGSB 装置回收重金属技术可同时实现无害化、减量化和资源化,是飞灰处理技术的发展方向。

  8. Status report on compact gasifier cogeneration units in Germany. Applications of the cogeneration gasifier technology; Stand kleintechnischer Vergaser-BHKW-Anlagen in Deutschland. Einsatz der BHKW-Vergasertechnologie

    Energy Technology Data Exchange (ETDEWEB)

    Zschunke, Tobias; Schuessler, Ingmar; Salomo, Bert [Hochschule Zittau/Goerlitz (Germany); Braekow, Dieter [Foerdergesellschaft Erneuerbare Energien e.V., Berlin (Germany); Treppe, Konrad [Technische Univ. Dresden (Germany). Inst. fuer Verfahrenstechnik und Umwelttechnik

    2010-07-01

    In contrast to biogas, the use of solid biomass with low water content in cogeneration units is lagging several years of development behind. A promising variant is a wood gas engine cogeneration unit. Different energy sources can be combined, e.g. in an Otto engine and a Stirling engine. The authors describe the technology for compact systems. (orig.)

  9. Present Status and Research Progress of Anti-corrosion Technology in Pipeline%管道内防腐技术现状与研究进展

    Institute of Scientific and Technical Information of China (English)

    赵帅; 兰伟

    2015-01-01

    介绍了石油管道内溶解氧、二氧化碳、硫化氢、以及二氧化碳和硫化氢协同腐蚀的机理. 综述了油气管道内防腐技术,现阶段主要的处理方式是选择耐蚀金属材料或非金属材料、添加缓蚀剂、涂层防腐和衬里防腐. 分析了各种内防腐技术的优缺点,认为管道内防腐在未来的发展方向是将基材选择、添加缓蚀剂、内涂镀层和内衬里技术进行综合,以减缓管道内的腐蚀. 低碳钢表面镀镍层自纳米合金化技术,即是集中内防腐技术的综合运用,得到了表面无缝冶金结合的高耐蚀性能管材,是未来发展趋势的代表.%The co-corrosion mechanism of oil and gases such as dissolved oxygen, carbon dioxide, hydrogen sulfide as well as carbon dioxide and hydrogen sulfide in the pipeline was described. The anti-corrosion technology of oil and gas in pipeline was re-viewed, including selection of corrosion resistant metallic materials or non-metallic materials, addition of corrosion inhibitor, coat-ing technology and lining technology. The paper analyzed advantages and disadvantages of various anti-corrosion technology and proposed that the future development trend of pipeline corrosion would be combination of substrate selection with addition of corro-sion inhibitors and internal lining technology for coating and lining to slow down the corrosion inside the pipe. Low carbon steel nickel-plated layer by nano alloying technology, which is the integrated utilization of concentrated anti-corrosion technology to ob-tain high metallurgical bonding surface seamless pipe with high corrosion resistance, is representative of future trends.

  10. Status epilepticus

    NARCIS (Netherlands)

    Hensiek, AE; Absalom, Anthony

    2006-01-01

    Status epilepticus is defined as epileptic activity that continues for more than 30 minutes as a single seizure or as recurrent seizures without inter-ictal return of consciousness. The seizure activity is usually classified as partial or generalized. Although status epilepticus is an uncommon admis

  11. Status epilepticus

    NARCIS (Netherlands)

    Hensiek, AE; Absalom, Anthony

    2006-01-01

    Status epilepticus is defined as epileptic activity that continues for more than 30 minutes as a single seizure or as recurrent seizures without inter-ictal return of consciousness. The seizure activity is usually classified as partial or generalized. Although status epilepticus is an uncommon admis

  12. Current status of patent technologies of coke oven gas to natural gas in China%国内焦炉气制天然气专利技术发展现状

    Institute of Scientific and Technical Information of China (English)

    杜雄伟

    2012-01-01

    Current status of patent technologies of coke oven gas to natural gas in China is described in this paper. Two main production processes of coke oven gas to natural gas are analyzed, named " coke oven gas methanation to natural gas" process and "coke oven gas purification and separation to natural gas" process. Patent applications of conversion technologies from coke oven gas to natural gas by organizations or individuals who have the technologies in China are introduced. It is pointed out that the project implementation of coke oven gas to natural gas has a very important significance for coking industry to develop energy-saving and emission-reduction circular economy.%综述了国内焦炉气制天然气专利技术发展现状,分析了国内焦炉气制天然气技术的2种主要工艺,“焦炉气甲烷化制备天然气”工艺和“焦炉气联合净化分离制备天然气”工艺.介绍了目前国内焦炉气制天然气技术拥有单位或个人专利申请情况,指出焦炉气制天然气项目的实施对焦化行业节能减排及发展循环经济等具有重要意义.

  13. The Role and Status of Standardization Document Service Organizations in Promoting Enterprises Technological Innovation%试论标准化文献服务机构在企业技术创新中的作用和地位

    Institute of Scientific and Technical Information of China (English)

    潘薇; 胡雄伟

    2011-01-01

    The standardization is an important driving force and significant part of enterprises technological innovation. It is necessary to make some in depth research on the relationship between standardization and enterprises technological innovation. Through introduction of the practice and development of foreign standardization activities and the situation of China's innovation policy system, the paper emphasizes the role and status of standardization document service organizations in promoting enterprises technological innovation. By fully exerting the activity of standard document services, and deep mining, accessing and using the standardization information resources, the process of China's enterprises standardization will be greatly promoted.%文章中重点指出标准化是企业技术创新的重要推动力和重要组成部分,深入探讨标准化与企业技术创新的相互关系具有重要的意义.通过介绍国外标准化的实践与发展,以及我国的创新政策体系现状,着重强调了标准化文献服务机构在推动企业技术创新中的作用和地位,充分发挥标准文献服务的作用,深度挖掘和利用标准文献资源,将极大地推进我国企业标准化进程.

  14. 基于大数据技术的电力用户行为分析及应用现状%Power User Behavior Analysis and Application Status Based on Big Data Technology

    Institute of Scientific and Technical Information of China (English)

    沈玉玲; 吕燕; 陈瑞峰

    2016-01-01

    电力行业是大数据技术应用的重要领域之一,电力大数据产生于电力生产的各个环节,蕴藏着丰富的商业和社会价值。介绍了大数据技术在电力行业的应用现状,重点对基于大数据技术的电力用户行为分析方法进行了归纳总结,最后给出了几个面向电力用户行为分析的大数据应用案例。%Electric power industry is one of important application fields of big data technology.Big power data,generated in each aspect of power production,bears a great deal of commercial and social value.This paper introduces the status of application of big data technology in the electric power industry,summarizes methods for analyzing power user behavior based on big data technology,and finally gives several big data application cases for power user behavior analysis.

  15. 网络与通信技术发展现状及趋势分析%Network and Communication Technology Development Status and Trend Analysis

    Institute of Scientific and Technical Information of China (English)

    苏宏德; 黄静波

    2011-01-01

    The development of network communication technology, social progress has played a huge role in promoting,in addition to traditional multimedia technology, mobile communications networks,optical communications and other existing development and breakthroughs,it also appeared in satellite communieatioris,nano-optical communications and other new wends.%网络通信技术的发展对社会的进步起到了巨大的推动作用,除了传统的多媒体技术、移动网络通信、光通信等现有的发展与突破以外,还出现了卫星通信、纳米光通信等新型的发展趋势。

  16. Food traceability systems in China: The current status of and future perspectives on food supply chain databases, legal support, and technological research and support for food safety regulation.

    Science.gov (United States)

    Tang, Qi; Li, Jiajia; Sun, Mei; Lv, Jun; Gai, Ruoyan; Mei, Lin; Xu, Lingzhong

    2015-02-01

    Over the past few decades, the field of food security has witnessed numerous problems and incidents that have garnered public attention. Given this serious situation, the food traceability system (FTS) has become part of the expanding food safety continuum to reduce the risk of food safety problems. This article reviews a great deal of the related literature and results from previous studies of FTS to corroborate this contention. This article describes the development and benefits of FTS in developed countries like the United States of America (USA), Japan, and some European countries. Problems with existing FTS in China are noted, including a lack of a complete database, inadequate laws and regulations, and lagging technological research into FTS. This article puts forward several suggestions for the future, including improvement of information websites, clarification of regulatory responsibilities, and promotion of technological research.

  17. 三维集成技术的现状和发展趋势%Current status and trends of three-dimensional integrated technology

    Institute of Scientific and Technical Information of China (English)

    吴际; 谢冬青

    2014-01-01

    The definition of 3D technologies is given in this paper. A clear classification of variety 3D technologies is pro-posed,in which there are 3D packaging,3D wafer-level packaging,3D system-on-chip,3D stacked-integrated chip and 3D in-tegrated chip. Two technologies (3D system-on-chip and 3D stacked-integrated chip) with application prospect and their TSV technical roadmap are analyzed and compared. 3D integrated circuit's some problems in the aspects of technology,testing,heat dissipation,interconnection line and CAD tool are proposed and analyzed. Its research prospect is pointed out.%给出了三维技术的定义,并给众多的三维技术一个明确的分类,包括三维封装(3D-P)、三维晶圆级封装(3D-WLP)、三维片上系统(3D-SoC)、三维堆叠芯片(3D-SIC)、三维芯片(3D-IC)。分析了比较有应用前景的两种技术,即三维片上系统和三维堆叠芯片和它们的TSV技术蓝图。给出了三维集成电路存在的一些问题,包括技术问题、测试问题、散热问题、互连线问题和CAD工具问题,并指出了未来的研究方向。

  18. The current status of coal liquefaction technologies - Panorama 2008; La liquefaction du charbon: ou en est-on aujourd'hui? - Panorama 2008

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    In 2008, a first coal liquefaction unit to produce motor fuel (20,000 BPSD) will come on-stream in Shenhua, China (in the Ercos region of Inner Mongolia). Other, more ambitious projects have been announced in China for between now and 2020. Since oil production is expected to peak in the medium term, this technology may develop regionally in the next 20 years to cover ever-increasing demand for motor fuel.

  19. Research status of dry coating technologies on solid dosage forms%固体制剂干法包衣工艺的研究进展

    Institute of Scientific and Technical Information of China (English)

    乔明曦; 李可欣; 陈大为

    2012-01-01

    Objective To review the recent progress of dry coating technologies on dosage forms. Methods The processes and principles of several dry coating methods included heat dry coating,electrostatic dry powder coating,plasticizer dry powder coating,and plasticizer electrostatic dry powder coating were discussed in the paper. Results The developed dry powder coating technologies are capable of eliminating the water in the coating process. Conclusions Dry coating technologies are promising to be applied in the pharmaceutical industrial manufacture.%目的 对近年来国内外固体制剂的非溶剂包衣工艺进行介绍.方法 通过查阅文献,综述了目前比较常用的几种包衣方式,包括静电干粉包衣、增塑剂干法包衣、增塑剂静电干粉包衣、热溶包衣、压制包衣和光固化包衣,以及各种包衣工艺的原理、过程与特点.结果 干法包衣工艺可以避免水性或有机溶剂的使用.结论 干法包衣工艺具有很大潜力,可用于固体制剂包衣的工业化生产.

  20. Study status and development tendency of tramcar cleaning technology%矿用清车技术的研究现状及发展趋势

    Institute of Scientific and Technical Information of China (English)

    廉凯

    2012-01-01

    矿车在装运煤炭、矸石等物料的过程中,车底会逐渐沉积一些杂物,大大降低了运输效率,影响矿车的使用寿命。在国内外清车技术研究现状的基础上,主要对国内外矿车结底清理的传统方法及先进技术的基本原理以及各自优缺点做了介绍,并分析了未来矿车清理技术的发展趋势。%Due to lots of sundries deposited at the bottom of the tramcar during transportation of coal and gangue,the transportation efficiency and lifespan of the tramcar greatly reduce.After studying the current situation of the tramcar cleaning technology at home and abroad,the paper introduced the traditional methods of cleaning agglomerate at tramcar bottom and basic principle of advanced technology and their advantages and disadvantages.In addition,it analyzed the development tendency of tramcar cleaning technology in future.

  1. Development Status of Security Inspection Technology of Liquid Dangerous Goods%针对液态危险品的安检技术发展现状

    Institute of Scientific and Technical Information of China (English)

    邓震萍

    2012-01-01

    Liquid bombs have been one of new method to terror activity because that it is easy to make and ignite, conveniently to transport and lower cost. To quickly and exactly distinguish liquid goods is a urgent demand in security inspection. This thesis reviews the development of security inspection technology according to liquid dangerous goods at home and abroad. The current situations and problems in security inspection technology is analyzed, and the developing tendency of security inspection technology is pointed out.%液态爆炸物由于制作与起爆简单、运输方便、成本低等特点,成为了实施恐怖活动的新的手段.液态物品的快速准确识别成为了安全检查工作中极为迫切的需求,对国内外针对液态危险品的安检技术与设备发展情况进行了综述,分析了当前液态危险品安检技术的现状和存在的问题,并指明了未来安检技术的主要发展趋势.

  2. Status and prospect of automotive safety technology in China%中国汽车安全技术的现状与展望

    Institute of Scientific and Technical Information of China (English)

    赵福全; 吴成明; 潘之杰; 刘卫国; 刘巍

    2011-01-01

    面对中国交通事故伤亡率高的现状,企业、学校、研究机构都加大了对汽车安全技术研究开发的投入,加快了安全技术研发能力的提升和产品化进程。自主品牌汽车C-NCAP五星高分的获得标志着中国被动安全技术的飞跃性发展。进一步开展对行人保护、后排乘员保护、防后碰鞭打保护以及骑自行车人保护等被动安全研究的同时,主动安全系统、预碰撞系统、智能化汽车网络系统的研究开发已经成为关注的热点,更高层次的乘员、车和环境等相关主被动安全技术的统合协调,将推动零碰撞零伤亡汽车安全理念的实现。国家级研究开发及产业化大课题的设立、法规标准的%Investments of automotive safety technology have substantially been increased due to heavy casualty in traffic accident in China. It thereby accelerates the improvement of RD capability of safety technology and commercialization process. The fact that the domestic-brand vehicles have achieved C-NCAP 5-star rating marks a great leap forward in terms of passive safety technology in China. The research of passive safety is further performed with regard to pedestrian protection, rear-row passenger’s protection, whiplash protection and cyclist protection. Meanwhile, the research and development of active safety, pre-crash safety and intelligent automotive network system have become the focuses. The perfect combination of high level active and passive safety technology regarding to passenger, vehicle and environment will promote the accomplishment of safety philosophy of zero crash and zero casualty. The subject establishment of state-level development and industrialization, and regulations constitution and perfection thereof will become the driving force of rapid growth of auto safety technology.

  3. 国内户用超声波热量表技术现状%Technological status of domestic household ultrasonic heat meters

    Institute of Scientific and Technical Information of China (English)

    林文卓; 王树铎

    2012-01-01

    Based on the statistic and analysis of technical achievement assessment and project application in recent two years, presents the technical developing status of ultrasonic heat meters in China, from the aspects of flow sensors mainly focusing on pressure drop decreasing, anti-clogging, eddy releasing, anti-scaling, elements selection and design, system software design.%通过统计和分析近两年科技成果评估和推广的热量表项目,介绍了我国超声波热量表的技术发展情况,主要包括流量传感器(减压损、防堵塞、减涡流和防结垢方面设计)、元器件选用与设计、系统软件设计方面.

  4. Present Status and Prospects of Modernized Mining Technology and Equipment in China Coal Mine%中国煤矿现代化开采技术装备现状及其展望

    Institute of Scientific and Technical Information of China (English)

    王金华

    2011-01-01

    总结了近10年来中国煤机装备先进的技术成果,以及大采高综采、大采高综放开采、短壁开采等现代化开采技术现状及其应用.我国现代化开采方法与煤机装备的协调快速发展,大幅推进了煤矿"高产、高效、安全、洁净"的发展进程,形成了具有中国特色的现代化开采技术与装备体系.对中国煤矿现代化开采技术与装备的发展趋势进行了前瞻性展望,认为我国现代化开采技术在快速发展的同时,工作面装备智能化技术,成套装备系统高可靠性综合技术,安全、环境与采煤协调开采技术,高强度开采条件下围岩活动规律等仍需进行进一步深入研究.%The paper summarized the advanced technical achievements of the coal machinery equipment in China in the passed 10 years,including the present status and application of the high mining height fully mechanized coal mining, high mining height mechanized top coal caving mining, shortwall coal mining and other modernized coal mining technology. The coordinative rapid development of the modernized mining method and the coal machinery equipment in China had highly pushed the progress of the “mine high production, high efficiency, safety and clean” development and had formed the modernized mining technology and equipment system with China characteristics. The paper had a prospective outlook on the development tendency of the modernized mining technology and equipment in China. The paper held that meanwhile the modern coal mining technology in China was rapidly developing, a further deep study on the intelligent technology of the coal mining face equipment, the high reliability comprehensive technology of the completed equipment system, safety, environment and coal mining coordinated mining technology, the surrounding rock activity law under the high intensified mining conditions shall be conducted.

  5. Stock Status

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These data inform the public of the most recent stock status for all stocks (FSSI and non-FSSI) in the fishery management unit contained in a fishery managment plan....

  6. Development Status of High Acid Crude Oil Deacidification Technologies%国内外高酸原油脱酸发展现状

    Institute of Scientific and Technical Information of China (English)

    陈清涛; 朱玉龙; 秦一鸣; 田义斌

    2014-01-01

    近年来,随着常规原油资源日益减少和原油开采技术的提高,非常规原油的产量逐年增加。非常规原油的酸值一般较高,基本都属于高酸原油,高酸原油在加工的过程中会对设备造成严重的腐蚀,而且对石油产品的使用性能产生较大影响,因此,解决高酸原油加工问题具有重大的意义。介绍了国内外高酸原油脱酸的几种工艺,如碱洗脱酸、醇氨法脱酸、酯化脱酸、加氢法、热分解法等方法,并对各种方法进行了对比。%In recent years, with the decreasing of conventional crude oil resources and the improvement of crude oil developing technologies, unconventional crude oil production is increasing year by year. Generally, the acid number of unconventional crude oil is high. The crude oil with high acid number may cause serious corrosion to the processing equipment in the refining process. The acid number of crude oil will also impact the performance of oil products. Therefore, it is great significance to solve the processing problems of the crude oil with high acid number. In this paper, several deacidification technologies of high acid crude oil were introduced, such as alkaline wash deacidification, alcohol-ammonia deacidification, esterification deacidification, hydrogenation deacidification ,thermal decomposition deacidification and so on. At last, these oil deacidification technologies were analyzed and compared.

  7. 物联网通信技术的发展现状及趋势综述%Development Status and Trend of IoT Communication Technology

    Institute of Scientific and Technical Information of China (English)

    东辉; 唐景然; 于东兴

    2014-01-01

    IoT(Internet of Things) is the third wave of IT industry booms right after computers, internet and mobile communication networks. Communication technology enables the IoT to efficiently transmit and exchange the perceived information between different terminals,and also the interchange and share of infor-mation resource is a pivotal support to its various application functions. Firstly, this paper describes the concept and system composition of IoT, then focuses on state-of-the-art of IoT communication technolo-gy,and analyzes the possible challenges in the technical development, finally forecasts the future study and development trend of IoT communication technology in accordance with the development of information communication technology and IoT.%物联网是继计算机、互联网与移动通信网之后信息技术产业的第三次发展浪潮。通信技术能够使物联网将感知到的信息在不同的终端之间进行高效传输和交换,实现信息资源的互通和共享,是物联网各种应用功能的关键支撑。文中首先介绍了物联网的概念、系统组成,然后重点阐述了物联网通信技术的发展现状,接着分析了物联网通信技术发展中面临的问题,最后结合信息通信技术和物联网的发展情况,对物联网通信技术的研究方向和发展趋势进行了展望和预测。

  8. Overview of Development Status of 3D Video Technology%立体视频技术的发展现状综述

    Institute of Scientific and Technical Information of China (English)

    鲁业频; 李素平

    2012-01-01

    围绕立体视频产生、编码、传输以及接收显示.就两路光信号产生视差的立体以及两路视频流的编码技术等方面,结合目前业界主流及其热点问题,作了广泛而深入的重点梳理与阐释.指出多视点视频、编码是发展方向.采用运动和视差联合估计,结合如分形编码、小波变换编码等快速算法并应用于最先进的编码标准中,把被动武通用眼镜作为当前一段时间的立体电视过渡,发展到未来的全息立体.%The production, coding, transfer and receiving display of 3D video technology are focused on. Combined with the mainstream and hot issue, the disparity estimation of two light signals and coding technology of two video streams are widely and deeply described. The multi-view video and coding are the development direction is pointed out. The combination estimation of sports and parallax is used and fast algorithm such as fractal video coding and wavelet video coding is applied to the most advanced coding standard to take passive general glasses as a transition of 3D television for current period of time and develop to be holographic stereo technology in the future.

  9. Development Status and Impacts of Health Information Technology in USA%美国健康信息学技术的发展现状及作用

    Institute of Scientific and Technical Information of China (English)

    高善强; 贺英; 王珊珊

    2016-01-01

    健康信息技术能够为患者治疗和护理提供所需的临床信息,有助于提高医疗卫生系统的效率,并减少医疗误诊率。本文依据美国卫生信息与管理系统协会在2013年开展的调查,对健康信息技术在促进健康信息沟通方面的影响进行了评价。结果表明,现有的健康信息技术工具能够支持各种临床治疗过程,并能为治疗和护理准备提供更多相关信息,包括改进临床医生获得转院患者病况信息,最终增强患者治理和护理的水平。%Health information technology can provide the needed clinical information for patients about treatment and nursing,it is helpful to improve the efficiency of health care system and reduce the rate of misdiagnosis.This paper based on the survey of the American health information and management systems association in 2013,the impact of health information technology on promoting the communication of health information was evaluated.The existing health information technology tools can support a variety of clinical treatment process and can provide more relevant information for treatment and nursing preparation,including the improvement of the patient’s condition for clinicians information referral and ultimately enhance the level of patient’s care and management.

  10. Development of the international status of science and technology concerning methods and tools for operational and long-term safety cases; Weiterentwicklung des internationalen Stands von Wissenschaft und Technik zu Methoden und Werkzeugen fuer Betriebs- und Langzeitsicherheitsnachweise

    Energy Technology Data Exchange (ETDEWEB)

    Seher, Holger; Beuth, Thomas; Bracke, Guido; Kock, Ingo; Mayer, Kim-Marisa; Moog, Helge C.; Uhlmann, Stephan; Weyand, Torben (eds.)

    2016-09-15

    The project ''development of the international status of science and technology concerning methods and tools for operational and long-term safety cases'' covers the following key aspects: global aspects of the methodology for scenario assumption for the operational phase following closure, potential analysis of the derives safety cases for the project Gorleben, determination of the solid phase composition of high-level radioactive wastes using geochemical modeling calculations, search for an adequate approach for the calculation of density and viscosity of saline solutions for the future use in GRS computer codes, international approaches for an integral analysis for the host rocks clay and granite in relation to the safety requirements of BMUB.

  11. Application Status of Data Mining Technology in Power Marketing System%数据挖掘技术在电力营销系统的应用现状

    Institute of Scientific and Technical Information of China (English)

    郝晓弘; 朱洁; 王维洲; 胡振邦

    2011-01-01

    For problems of incomplete data collection and certain inaccurate data, the paper analyzed and discussed application status and prospect of data mining technologies such as association rule,classification, time series and series mining, clustering, space mining in power marketing system based on data characteristics of power marketing system.%针对电力营销系统存在数据采集不全、个别数据不准确等问题,结合电力营销系统的数据特点,分析探讨了关联规则、分类、时间序列和序列挖掘、聚类、空间挖掘等数据挖掘技术在电力营销系统中的应用现状及前景展望.

  12. 餐厨垃圾处理技术现状与发展%Status and Development of Food Residue Resource Technology

    Institute of Scientific and Technical Information of China (English)

    伍建军; 梁灿钦; 林锦权

    2012-01-01

    This paper reviews food waste treatment process, analyzing the advantages and disadvantages of various tech- niques, and proposing the improvement and development according to the problems on the current technology.%对餐厨垃圾处理工艺的研究进展进行了综述,分析了各种技术存在的优缺点,并就当前技术存在的问题,提出了今后改进和发展的方向。

  13. New technologies, new hazards: Need for evidence base: A report on the health status and safety measures in a biotechnology factory in Bangalore

    Directory of Open Access Journals (Sweden)

    Sudhashree V

    2007-01-01

    Full Text Available Background: In highly competitive economies, the fast-paced development of new and improved products and services inevitably spurs the development of new technologies, of which one-fifth growth has been in the biotechnology sector. Advances in technologies provide opportunities to minimize the drudgery of work and to eliminate old hazards, but they may create new currently unrecognized risks to workers. Objectives: To assess the morbidity pattern among workers in the biotechnology industry and also to find out the health and safety measures provided to the workers. Materials and Methods: A cross-sectional study was conducted in a biotechnology industry in Bangalore, which covered 779 employees who underwent health examination and blood and urine investigations; of the 779 employees, 600 were permanent employees and 179 were contract employees. Results and Discussion: The common morbidity among the workers included refractory errors; allergic contact dermatitis; hypertension; abnormal pulmonary function tests (61, 10.2%, of which 23 (37.7% were from the production department; high eosinophil count (110, 14.1%. Majority, i.e., 46 (41.8% worked in the production department. The safety measures provided to the workers are adequate, but there is a need to insist on regular use of personal protective devices by newly employed and contract laborers.

  14. ANALYSIS OF PATENT STATUS FOR COAL-TO-NATURAL GAS TECHNOLOGY%煤制天然气技术专利状况分析

    Institute of Scientific and Technical Information of China (English)

    张义玲; 宋晓军

    2011-01-01

    With the search of coal-to-natural gas patents of various countries kept in Databases a study on and analysis of development trend of coal-to-natural gas technology,main competitors and their layout internationally as well as their patent applications in China have been carrying out;meanwhile,the hot spots in R/D in various development phases are analyzed to provide an assistance in IPR in any new development or improvement of coal-to-natural gas technology.%通过对各种专利数据库中世界各国煤制天然气专利的检索,分析研究煤制天然气技术的发展趋势、主要竞争对手、竞争对手国际布局及在中国的专利申请等,同时分析各个发展时期的研发热点,以期对煤制天然气技术新的开发或改进提供知识产权帮助。

  15. 乳制品中霉菌毒素的检测技术研究现状%Research Status of Mycotoxins Detection Technology in Dairy Product

    Institute of Scientific and Technical Information of China (English)

    庄倩; 曲宝涵; 李彦; 徐秀玲; 耿勋

    2014-01-01

    乳制品中的霉菌毒素与人类健康及产品安全密切相关,因此对乳制品中霉菌毒素的检测尤为重要。对目前常用的检测技术化学分析法、免疫分析法和仪器分析法进行了综述,并简述了它们的特点及应用情况,为建立乳制品中霉菌毒素新的检测技术提供参考。%Mycotoxins in dairy product are closely related with human’s health and the safety of product, so the detection of mycotoxins in dairy product is particularly important. The commonly used detection technologies of chemical analysis, immunoassay analysis and instrument analysis were reviewed in this paper. Their characteristics and applications were summarized to provide a reference for establishing new detection technology of mycotoxins in dairy product.

  16. 钼酸铵生产技术发展现状%Present development status of preparation technology of ammonium molybdate

    Institute of Scientific and Technical Information of China (English)

    李来平; 刘燕; 王国栋; 张文钲

    2012-01-01

    Ammonium molybdate can be used as the precursor for molybdenum powder and molybdenum products.lt is also widely applied in chemical reagents,catalysts,flame retardants,and drugs etc..Variety .production situation,and technology of ammonium molybdenum at home and abroad were briefly reviewed.Technical innovations, such as application of surfactants , improvement of vapor equipment, introduction of continuous crystallizer, adoption of cycle extraction-stripping method, and addition of lixiviating agent for the preparation technology of ammonium molybdate in recent years were introduced in detail.%钼酸铵可用作生产钼粉、钼金属制品的前驱体,可广泛用作化学试剂、催化剂、阻燃剂及药物等.简要介绍了钼酸铵的品种,国内外生产概况及生产工艺.重点介绍了近几年钼酸铵生产工艺的技术创新,如表面活性剂的应用,蒸发设备的改进,连续结晶器的引入,循环萃取-反萃法的采用以及浸出剂的添加等,并对中国钼酸铵行业的发展提出建议.

  17. Status in Pretreatment Technologies of Lignocellulosic Biomass%木质纤维素生物质预处理技术研究现状

    Institute of Scientific and Technical Information of China (English)

    张元晶; 魏刚; 张小冬; 魏云鹏; 乔宁

    2012-01-01

    为了研究经济高效的预处理技术,综述了近10年国内外在木质纤维素预处理技术方面的研究,对物理法、物理-化学法、化学法、生物法等预处理技术进行了重点分析,发现稀酸处理法、蒸汽爆破法和生物法等技术极具潜力,但目前的研究仍存在不足,今后还需研究成本低、产率高、污染小的预处理技术.最后对预处理技术的发展提出了建议.%In order to develop economic and efficient pretreatment technologies, the research progress on pretreatment of lignocellulose at home and abroad in recent 10 years was reviewed detailedly. And the pretreatment processes, such as physical methods, physical—chemistry methods, chemical methods and biologic methods were emphatically analyzed, from which dilute acid pretreatment method, steam explosion pretreatment method and biological pretreatment method were found to be most development potential. Pretreatment methods with low cost, high yield and less pollution are needed to be developed for shortages of the existing methods. And some proposals for development of pretreatment technologies were put forward as well.

  18. 加筋土技术的研究现状与展望%Research Status and Prospect of Reinforced Soil Technology

    Institute of Scientific and Technical Information of China (English)

    袁东进

    2016-01-01

    Reinforced soil technology is widely used in civil engineering, and it is a hot research topic in the field of civil engineering. Through the experimental research of reinforced soil, reinforcement mechanism research, calculation method of the analysis of the present situation, this paper pointed out the characteristics of current research, and aiming at the deficiencies of the reinforcement technology at present, from the problems and the development trend of the current reinforcement, it put forward the future research needs to be discussed further concern.%加筋土技术在土木工程中应用较广,是目前研究的一个热点.通过加筋土实验研究、加筋机理的研究、计算方法的研究等现状分析,指出当前研究的特点,针对加筋技术目前研究的不足之处,从目前加筋的问题和发展的趋势,提出今后研究尚待进一步探讨关注的问题.

  19. The Status and Trend of Pineapple Leaf Fiber Degumming Technology%菠萝叶纤维脱胶技术的现状与发展方向

    Institute of Scientific and Technical Information of China (English)

    杨美萍; 张劲; 何俊燕

    2012-01-01

    Necessity and urgency of pineapple leaf fiber degumming technology research were expounded in the paper.Firstly,the advantages and disadvantages of the present methods of pineapple leaf fiber degumming——chemical degumming,biological degumming,and biochemical joint degumming——were analysed.Secondly,the relationship between the characteristics of pineapple leaf fiber and degumming were expounded in view of the structure characteristics and chemical properties of pineapple leaf fiber."low consumption,high efficiency,high quality,less pollution" pineapple leaf fiber degumming technology were pointed out.Finally,a new method of pineapple leaf fiber degumming was put forward.%分析了几种现有的菠萝叶纤维脱胶方法及其优缺点,从菠萝叶纤维的结构特点和化学性能方面,阐述其与脱胶的关系.提出菠萝叶纤维脱胶技术应向着"优质、高效、低耗、少污染"方向发展的必要性,并据此提出一种新的脱胶方法———机械脱胶.

  20. 细菌总数快速检测技术的研究现状%Research Status of Rapid Detection Technology of Total Bacteria

    Institute of Scientific and Technical Information of China (English)

    牛玉倩; 孙宇梅; 何聪芬

    2011-01-01

    化妆品安全问题越来越受到人们关注,化妆品微生物的快速检测显得尤为重要,但传统检测方法主要是需氧平板计数法,其操作繁琐、检测周期长且灵敏度低.着重介绍几种主要应用在食品行业的细菌总数快速检测技术,包括快速测试片技术、实时定量PCR技术、酶联免疫吸附技术、传感器技术、代谢技术、色谱法等,以期为化妆品微生物的快速检测提供一些参考.%With more and more people concerning about the safety of cosmetics, rapid microbial detection is becoming particularly important. However, the traditional method is aerobic plate count, it has the characteristics of tedious operation, long detection cycle and low sensitivity. Several rapid detection technologies of total bacteria which were mainly applied in the food industry were introduced, such as petrifilm, real-time quantitative PCR, enzyme-linked fluorescent immunoassay, biosensor, metabology technique ( chromatographic method and so on. And the prospect of detection technology was looked forward.

  1. 复合材料自动铺放工艺技术研究现状%Research Status of Automated Placement Processing Technology of Composites

    Institute of Scientific and Technical Information of China (English)

    张建宝; 赵文宇; 王俊锋; 董波; 蒋文革

    2014-01-01

    Based on the introduction of the advanced composite applications and requirements, the development trend of the composite automated placement technology is expounded in this paper. The research over-view of AP technology is discussed in three aspects includ-ing prepregs, processing and curing (consolidation) both at home and abroad. The domestic development trending for automated placement is analyzed.%在论述复合材料成型自动化技术的基础上,阐述了自动铺放技术的发展历程及在航空航天领域的应用现状,并着重分别从预浸料体系、成型工艺和固化(固结)技术3个方面论述国内外自动铺放工艺技术的研究现状,分析了国内自动铺放工艺技术的发展趋势。

  2. Studies on energy consumption patterns for improving air quality in the seoul metropolitan area. pt. 3 Status of photochemical air pollution and control technologies

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Seong Soo; Son, Jae Ik; Park, Young Ok; Kim, Hong Yong; Cho, Sung Ho [Korea Inst. of Energy Research, Taejon (Korea, Republic of)

    1995-12-01

    1. Status of photochemical air pollution in the capital area and control strategy. The results of this study show that the air quality in the capital area has an indication of regional photochemical air pollution. Primary pollutants can be controlled at the emission sources, but it is not easy to find the target of photochemical pollution control. For effective photochemical pollution control, basic studies on the fraction of VOCs in total hydrocarbon emissions, the composition of VOCs, and non-traditional emissions such as those from solvent use should be conducted. Comprehensive studies on photochemical pollution control strategies in this report would be useful for identifying essential factors on devising strategies. 2. Air quality modelling using STEM-II. Modelling domain in the last year was confined to the capital area that was too small for a regional-scale model. Modeling domain in this year covered the east of China to the East Sea. The results of modeling in this year were much better than those of the last year. However, the limitations associated with incomplete input data and modeling domain that was too large for the capital area would not be overcome without sufficient basic studies. (author). 29 refs., 34 figs., 21 tabs.

  3. Current status and development of coal geophysical technology in China%中国煤炭物探技术的现状与发展

    Institute of Scientific and Technical Information of China (English)

    程建远; 石显新

    2013-01-01

    6 prominent progresses and developments had been made in coal and mine geophysical technique in recent years,namely popularization for 3D seismic application; seismic data fine processing and interpretation dynamically;new spanning has been taken from structural to lithological explanation for seismic; ground TEM technology has been widely used; attention was regained for underground geophysics and innovations have been achieved for embedded labeled service mode has been used in coal mine safety production guarantee.By making the comparison between China and oversea technological levels in coal geophysics,the shortcomings had been pointed out and suggestions on how to improve geophysical technology in China had been put forward.In the end,outlooks for future geophysical technique and equipment were predicted in the paper.%总结了近年来我国煤田物探与矿井物探技术的6大突出进展,即三维地震应用领域不断扩大、地震资料精细处理与动态解释得到推广、地震勘探正在实现从构造勘探向岩性勘探的跨越、地面瞬变电磁技术得到广泛应用、矿井物探技术重新得到重视、以“嵌入式”服务为标志的煤矿安全生产地质保障模式出现了可喜创新等;通过与国内外同类技术发展水平的对比分析,找出了我们存在的差距,提出了加快我国煤炭物探技术发展的对策与建议,并对今后煤炭物探技术与装备的发展前景进行了展望.

  4. TV Culture Status Analysis of the Technology of Ecological Environment%电视文化身份的技术生态环境分析

    Institute of Scientific and Technical Information of China (English)

    贾志城; 陈乖丽

    2016-01-01

    电视文化身份的构建由自然生态和社会生态因素共同形成,其社会生态因素是指政治、经济、文化、技术等社会存在的属性集合,社会生态对文化身份辨识的影响最为重大,这也是中国电视文化身份构建的先决条件。电视媒体的技术生态环境由相互依赖和作用的数字化、网络化、智能化3部分因素构成,同时电视生态链的主要环节均留有技术因素的痕迹,可以看出电视文化的技术烙印有助于形成良好完整的电视文化生态系统。%Television cultural identity construction has its natural ecology and social ecology together form,its social ecology refers to the political,economic,cultural,technical and other social attribute set,social and ecological effect on the cultural identity recognition is most important,this is also the prerequisite for building China's TV culture identity.TV media technology of ecological environment cause by the mutual dependence and function of digital,networked,intelligent factors,the main steps of television ecosystem are residing with marks of technical factors,technology brand of TV culture helps to form good complete TV culture ecosystem.

  5. Research Status and Development of Green Grinding Technology%绿色磨削加工技术研究现状及进展

    Institute of Scientific and Technical Information of China (English)

    霍文国; 徐九华; 傅玉灿; 戚厚军

    2011-01-01

    This paper reports new technology investigation of green grinding and grinding process. The traditional grinding process often uses the flood delivery coolant to lower the temperature in the grinding zone; but a lot of use of grinding fluid does great harm to environments and workers, and increases its cost of recycle. The thesis analyzes applications and technical characters of green grinding process such as dry cutting, minimum quantity lubricant, liquid nitrogen cooling, air eject cooling, inner cooling and solid lubrication cooling in machining. At last, we draw a conclusion that the green cutting process technology will gradually replace the conventional flood form. It is a developing direction for future manufacture and has a good outlook.%传统的磨削加工大量采用磨削液浇注法降低加工区温度,磨削液的大量使用给环境和操作者健康带来了很大危害,而且增加了磨削液排放回收的成本.本文分析了绿色磨削加工技术,如干磨削技术、微量润滑、液氮冷却、低温气体冷却、高压射流冷却、内冷却和固体润滑冷却技术在机械制造中的应用及其技术特征.绿色磨削加工技术将逐渐取代传统的浇注供液方法,是未来制造业的发展方向,具有很好的发展前景.

  6. 应用技术型高校工科专业创业教育的现状及对策研究%The status quo and countermeasures of application technology college’s engineering professional entrepreneurship education

    Institute of Scientific and Technical Information of China (English)

    刘雅娴

    2014-01-01

    面临日益严峻的大学生就业形势,应用技术型本科高校如何搞好本科教育的同时,做到“出口畅”,除了传统的就业方式,如考研、找工作、出国外,做好大学生创业教育,很有必要的同时,也是难点,本文分析应用技术型高校的工科专业创业教育的现状,并提出了一些对策。%Facing increasingly severe employment situation, how to improve technology application undergraduate course colleges and universities undergraduate education? In addition to the traditional way of employment, such as one's deceased father grind, looking for a job, a foreign, do a good job in college students' entrepreneurship education, it is necessary, but it is also the difficulty, this paper analyzes the status quo of application technology college of engineering professional entrepreneurship education, and puts forward some countermeasures.

  7. The Status and Progress of Manufacturing of Metal Parts by 3D Printing Technology%金属零件3D打印技术现状及研究进展*

    Institute of Scientific and Technical Information of China (English)

    杨永强; 刘洋; 宋长辉

    2013-01-01

      简述了国内外的金属零件3D打印技术的研究现状及最新进展,包括选区激光熔化(Selective Laser Melting, SLM)技术、激光近净成形(Laser Engineered Net Shaping, LENS)技术和电子束选区熔化(Electron Beam Selective Melting, EBSM)技术,并针对作者实验室的工作方向——SLM直接制造,具体分析了金属零件3D打印技术研究热点和难点以及具体应用。%This paper presents the research status and new progress of the metal parts manufactured by 3DP Technologies,including Selective Laser Melting(SLM),Laser Engineered Net Shaping(LENS) and Electron Beam Selective Melting(EBSM). At last,combined with the work of authors’ research team,the authors analyze the main research hotspots ,problems and oriented applications of metal parts manufactured by 3DP Technologies in detail.

  8. Key Technology of Flywheel Battery for Vehicle and Its Current Research Status%车载飞轮电池的关键技术分析及其研究现状

    Institute of Scientific and Technical Information of China (English)

    周红凯; 谢振宇; 王晓

    2014-01-01

    介绍了车载飞轮电池的储能和运行机理,详细分析了飞轮材料、磁悬浮技术、电动/发电机和电力电子转换装置等关键技术的国内外研究现状,探讨了车载飞轮电池的动力学特性及车载飞轮电池的发展趋势。%This paper briefly introduces the en-ergy storage and operation mechanism of the fly-wheel battery for vehicle,and analysis of the re-search status of the key technology at home and a-broad in detail,which includes flywheel material, magnetic levitation technology,motor/generator and power electronic devices.This paper also dis-cusses the development trend and the dynamics of flywheel battery for vehicle.

  9. Research Status and Development Trend of Sound Barrier Technology for Reduction of Noise on High-speed Railway%高速铁路声屏障降噪研究现状及发展趋势分析

    Institute of Scientific and Technical Information of China (English)

    汪红霞; 孙文娟

    2016-01-01

    The sound barrier technology is one of the most effective measures to reduce the radiated noise outside the carriage on high-speed railway. In order to reduce the serious effects that noise brings, this paper comprehensively analyzes the insertion loss principle, structure and method of sound barrier, discusses the research status of applying sound barrier technology in high-speed railway, thus to reduce the noise fundamentally.%声屏障技术是降低高速铁路车外辐射噪声最有效的措施之一。为了降低噪声带来的严重影响,本文综合分析了声屏障的插入损失原理、结构和研究方法,并分析了将声屏障技术应用在高速铁路上的研究现状,从而从根本上降低了噪声。

  10. 电子废弃物等离子体裂解技术现状及展望%Research Status and Prospect of the Plasma Pyrolysis Technology of Electronic Waste

    Institute of Scientific and Technical Information of China (English)

    王振民; 张芩; 佘欣仁; 方小鑫

    2011-01-01

    本文介绍了国内外几种常用电子废弃物资源化处理技术的特点,在此基础上详细分析了电子废弃物等离子体裂解处理技术原理、系统构成以及国内外的研究和应用现状。如何提高能量利用效率以及提高裂解生产的自动化水平是等离子体裂解技术未来研究的重点。%On the base of introduction of the advantages and disadvantages of several traditional electronic waste resource utilization technologies, the plasma pyrolysis technology is proposed, and the system structure, processing principle, and current status and application are analyzed. How to improve the energy utilization efficiency and the plasma pyrolysis production automation is the focus of future research.

  11. 浅谈科技创新在粮油加工中的作用和地位%Preliminary Discussion on Role and Status of Science and Technology Innovation in Grain and Oil Processing

    Institute of Scientific and Technical Information of China (English)

    陶海腾; 王文亮; 徐同成; 刘丽娜; 祝清俊; 杜方岭

    2012-01-01

    Grain and oil processing plays an important part in agricultural products processing, and is facing new opportunities and challenges along with the economic development. Science and technology innovation is the important support and fundamental guarantee for grain and oil processing keeping pace with the times. In terms of product quality, deep processing, resource utilization and strategic process ing layout, the important role and status of science and technology innovation were described to provide theoretical basis for subsequent in dustry development.%粮油加工是农产品加工的重要组成部分,随着经济的发展面临着新的机遇与挑战。科技创新是促进粮油加工与时俱进的重要支撑和根本保障。本文从产品品质、精深加工、资源综合利用、加工战略布局等方面,阐述了科技创新在粮油加工发展中的重要作用和地位。

  12. Production Technology Status and Bottleneck Problem Analysis of Industrial Detonator in China%我国工业雷管生产技术现状与瓶颈问题分析∗

    Institute of Scientific and Technical Information of China (English)

    廖玉景

    2016-01-01

    Industrial detonator production development technology in China has been significantly improved in this years, es-pecially the“twelfth five-year” period, a large number of independent research and development which has the function of in-trinsically safe automation equipment get pilot application. In the paper, by comparing the status of industrial detonator pro-duction technology at home and abroad, the bottleneck problem of industrial detonator production automation degree is found out, and then,the method solving the bottleneck problem is put forward, which can provide reliable technical solution for reali-zing full automation industrial detonator production subsequently.%我国工业雷管生产经过多年的发展技术水平已有明显提高,特别是“十二五”期间,大批自主研发的具有本质安全功能的自动化设备得到试点应用。通过对比国内外工业雷管生产技术现状,找出制约工业雷管生产自动化程度的瓶颈问题,通过分析比较,提出解决瓶颈问题的方法,为后续实现工业雷管生产全程自动化提供可靠的技术方案。

  13. 航空油量测量技术研究及其发展现状%Research on the Measurement Technology for Aviation Fuel Volume and Its Current Developing Status

    Institute of Scientific and Technical Information of China (English)

    单宝峰; 张广涛; 李景春; 王斌

    2013-01-01

    介绍了航空油量测量技术在飞机航行过程中的重要作用、发展现状和航空油量测量系统的基本工作原理,描述了液位测量传感器的工作原理及其发展过程,总结了国内外油量测量的计算方法,并罗列了对测量结果造成影响的一些因素.经分析指出数字化、综合化是航空油量测量系统的必然发展趋势.%The important role of the measurement technology for aviation fuel volume in aircraft navigation process, the current developing status of this technology, and the fundamental operational principle of the aviation fuel volume measuring system are introduced. The working principle and developing process of the level sensors are described. The computation methods for fuel volume measurement at home and abroad are summarized, and some factors that influence the measurement results are listed. After analysis, it is proposed that digitization and integration are the inevitable development trend of the aviation fuel volume measuring systems.

  14. The Status and Prospects of Pantograph and Catenary Dynamic Simulation Technology%弓网动态仿真技术的现状及展望

    Institute of Scientific and Technical Information of China (English)

    关金发; 吴积钦; 李岚

    2015-01-01

    This paper provided an overview of the research on dynamic simulation between pantograph and cate‐nary and the status of its applications , and looked into the future development of dynamic simulation of panto‐graph and catenary system . Existing pantograph‐catenary dynamic simulation methods mainly include virtual simulation and semi‐virtual semi‐physical simulation . The establishment of pantograph‐catenary simulation model mainly depends on continuous equation direct solution method , continuous equation discrete method and direct discrete method . To reduce vibration and prolong lifespan of pantograph and catenary system , simula‐tion will be further developed in optimizing structure of pantograph and catenary , active control of pantograph , and failure recognition of catenary . Finally , the deficiency in current simulation of pantograph and catenary system was analyzed and some suggestions were proposed for future research .%本文概述受电弓与接触网之间的机械动态仿真研究及其应用的现状,并展望弓网动态仿真技术的发展方向。现有弓网动态仿真的手段主要有全虚拟仿真和半实物半虚拟仿真,弓网仿真模型的建立主要有直接解连续方程法、连续方程离散法和直接离散法。为减小弓网振动,延长设备寿命,弓网仿真将向优化弓网结构、受电弓主动控制、弓网故障识别等方面发展。分析现阶段弓网动态仿真技术中的不足,对未来研究工作提出若干建议。

  15. 计算机软件在医院临床应用及展望%Elementary introduction to the application status and prospects of the computer software technology in clinical areas

    Institute of Scientific and Technical Information of China (English)

    2013-01-01

      计算机软件技术在临床医院的应用越来越广泛,已渗透到临床各个领域。以电子病历为核心的医院信息化建设,使用计算机获取、存储、处理各种诊疗和相关信息,提高了医院的医疗水平和工作效率,方便了病人。医院信息化已成为医院现代化的标志。本文浅谈了计算机软件技术在医院临床诊疗、化验检查、影像诊断、医院科学管理等应用现状及展望。%Being more and more widely used in clinical hos-pital, computer software technology has penetrated into all clinical areas. Electronic medical record, as a core way of the hospital infor-mation construction, using the computer to acquire, store, transmit and process all kinds of medical and related information, improves the clinical hospital’s medical level and work efficiency and brings large convenience to the patients. Hospital informatization has be-come the symbol of the hospital’s modernization. This paper inves-tigated the status quo of applying computer software technology to the hospital clinical areas detailedly, such as clinical diagnosis treatment and nursing, laboratory tests, diagnostic imaging, hospital scientific management. Then it discussed the direction of future development and prospects of the computer software technology in clinical areas.

  16. Present Status and Developing Tendency of Clearance Technology for Pavement Lce-snow%国内路面冰雪清除技术的现状及发展趋势

    Institute of Scientific and Technical Information of China (English)

    黎聪; 刘宗战; 张春晖; 牟国良

    2014-01-01

    This is a difficult problem that the icing snow on the airport runways,road,highways and other roads is removed fast and economical y to keep traffic flowing and driving safety in frozen weather. The current situation and research status of cleaning technol-ogy for pavement ice-snow are introduced,The principles and the advantages and disadvantages of various deicing techniques are elaborated and existing; problems and developing tendency of drying technology for deicing are analyzed in this paper. It points out that cleaning technology tendency is to develop the equipment with high efficiency, low energy, intel igence and environmental pro-tection.%快速又经济地清除机场跑道、城市道路、桥面的积冰积雪,是保障冰雪气候条件下交通畅通与行车安全的一个难题。介绍了目前路面冰雪清除技术的发展现状及研究情况;阐述了各种冰雪清除技术的原理及优缺点;分析了目前路面冰雪清除技术存在的问题并对发展趋势进行了探讨,并且指出路面冰雪清除技术向高效化、低耗化、智能化和环保化等方向发展。

  17. 虚拟人智能手语合成软件发展现状%The Current Status of the Development of Intelligent Sign Language Synthesis Software Based on Virtual Human Technologies

    Institute of Scientific and Technical Information of China (English)

    王兴辉; 孔雪龙; 蒋红星

    2015-01-01

    手语合成软件的开发与应用对于广大听力语言残疾人的学习、交流及更好地融入现代信息社会具有积极作用。本文对国外虚拟人智能手语合成技术的现状、发展动态及技术实现手段进行了概括和总结,对我国手语合成技术的发展概况、实现方法和存在的问题进行了分析。介绍了基于VRML的H-Anim(humanoid animation)和MPEG-4两个虚拟模型构建标准,对3DSMAX、MAYA、POSER三种建模工具,以及VRML、OpenGL、Direct3D和LabVIEW运动控制工具进行了对比分析。%The development and application of sign language synthesis software will facilitate the learning and communication of people with hearing and speech disabilities in the modern informative society. This article summarizes the current status, development trends and technical measures of intelligent sign language synthesis based on virtual human technologies in the world. It also analyzes the development, implementation and problems of sign language synthesis technologies in China. On the basis of aforementioned analysis and summarization, the two virtual modeling standards (H-Anim and MPEG-4) are introduced and three modeling tools(3DSMAX,MAYA,POSER) and operational control tools(VRML,OpenGL,Direct3D and LabVIEW)are compared and development tools of intelligent sign language synthesis software are compared based on virtual human technologies.

  18. Analysis on Current Status of Construction of Science and Technology Service Supermarket in Rural Region of Jiangsu Province%简析江苏农村科技服务超市建设现状

    Institute of Scientific and Technical Information of China (English)

    李娜; 吴翔; 周建涛; 徐凯飞

    2012-01-01

    Construction of science and technology service supermarket in rural region of Jiangsu Province is a new trial of science and technology service means and service mode. Current status of the construction was introduced in detail in the paper, i.e., there were stores, teams, networks, bases, achievements and brands in the science and technology service supermarket. The innovation points were summed up from such aspects as talents resources, service means, networks and service mechanism. Imperfect of the supermarket was analyzed, such as the construction speed, links between levels, market operation and safeguard measures. Some corresponding suggestions for improvement were put forward.%江苏农村科技服务超市的建设是农村科技服务手段和服务模式创新的一种尝试。文章详细介绍了科技服务超市以有店面、有队伍、有网络、有基地、有成果、有品牌等"六有"为主要模式的建设现状,归纳出农村科技服务超市在人才资源、服务手段、网络体系、服务机制等方面的创新点,分析了目前农村科技服务超市在建设速度、层级联系、市场化运作和保障措施等方面的不足之处,并提出相应改进建议。

  19. Environmental control implications of generating electric power from coal. 1977 technology status report. Appendix A, Part 1. Coal preparation and cleaning assessment study

    Energy Technology Data Exchange (ETDEWEB)

    None

    1977-12-01

    This report evaluates the state of the art and effectiveness of physical coal cleaning as a potential strategy for controlling SO/sub x/ emissions in coal fired power generation. Coal properties which are significantly altered by physical coal cleaning were determined. The effects of the changes in properties as they relate to pulverized coal firing, fluidized bed combustion and low Btu gasification for combined cycle powered generation were studied. Available coal washability data were integrated by computer with U.S. coal reserve data. Approximately 18% of the demonstrated coal reserve were matched with washability data. Integrated data appear in the Appendix. Current coal preparation practices were reviewed. Future trends were determined. Five process flow sheets representing increasing levels of cleaning sophistication were prepared. The clean product from each flow sheet will meet U.S. EPA New Source Performance Standards. Capital and operating costs for each case were estimated. Environmental control technology and environmental impact associated with current coal preparation and cleaning operations were assessed. Physical coal cleaning is widely practiced today. Where applicable it represents the least expensive method of coal sulfur reduction. Developmental physical and chemical coal cleaning processes were studied. The chemical methods have the advantage of being able to remove both pyritic sulfur and organic sulfur present in the coal matrix. Further R and D efforts will be required before commercialization of these processes.

  20. 基于专利地图的农业机器人技术发展态势研究%Studies on the Development Status of Agricultural Robot Related Technologies Based on Patent Map

    Institute of Scientific and Technical Information of China (English)

    谌凯; 林志坚; 应向伟; 仇秋飞; 吴巧玲; 赵云飞; 吴叶青

    2016-01-01

    农业机器人是农机产业的重要潜在发展方向,可提升农机企业核心竞争力、驱动科技创新及促进农业生产效率提升。为此,针对农业机器人技术绘制专利地图,从发展趋势、重点技术领域、地域分布、竞争机构及高引专利等方面开展态势研究,以为相关政府部门、企业和高校院所进一步发展农业机器人产业和技术提供情报支撑。研究结果表明:农业机器人技术真正的发展阶段出现在1993年以后,总体呈现出快速增长,而且这一趋势延续至今。机械手的末端执行器、自动导航及目标探测与定位是该领域的重点研发技术,而收获机器人、田间作业机器人、植保机器人是该领域的重点研发种类。我国近年来对于农业机器人技术的研发热情高涨,申请有大量相关专利,但专利质量相对美国和日本较低,核心专利缺失,技术水平还有待进一步提高。此外,还从政府、企业和产业园区3个层面提出了我国进一步发展农业机器人技术的对策建议。%Agricultural robot is an important potential development direction for agricultural machinery industry, which can improve the core competitiveness of relevant companies, drive technological innovations and promote the increase of agricultural production efficiency.In this article, based on the patent map of agricultural robot related technologies, the development status is investigated from five aspects, including development trend, key technology fields, regional distri-bution, rival agencies and highly cited patents, to provide intelligence support for further development of agricultural ro-bot industry and technologies by related government, companies, universities and research institutes.Research results in-dicate that agricultural robot related technologies began a rapid development around 1995 and up to now.End effector of manipulator, automatic guidance and target

  1. 艾滋病检验技术现状及应用分析%Status and Application Analysis of AIDS Testing Technology

    Institute of Scientific and Technical Information of China (English)

    刘耀英

    2015-01-01

    AIDS is a kind of disease which is very harmful to human beings. Because the current medical technology for the disease has not been a thorough cure, so the main work is currently on the prevention of AIDS prevention. AIDS is in-fectious, and the early diagnosis of AIDS patients can be better to prevent and reduce the rate of infection is the main method of prevention. Therefore, the use of HIV antibody detection, HIV detection method to detect the final diagnosis can better help to reduce the incidence of HIV infection, the use of these techniques will be better to ensure the safety and health of the people.%艾滋病作为对人类危害性极高的一种疾病受到了非常高的重视。因为当前医疗技术对该疾病还没有一个彻底的治愈办法,因此当前的主要工作就停留在了对于艾滋病的预防上面。艾滋病具有传染性,对艾滋病患者进行及早的确诊就能更好地进行预防从而减少其感染率。使用HIV抗体检测、HIV病原学检测方法进行有效的检查最终确诊才能更好的帮助降低艾滋病的传染率,良好的将这些检测技术运用在实际才能更好的保证人民的安全健康。

  2. The Status of Heavy Metals Monitoring Technology in Surface Water%地表水中重金属的监测技术现状

    Institute of Scientific and Technical Information of China (English)

    冯玉立; 贾雪菲

    2015-01-01

    Water resources play a vital role in social development,which directly affect peoples daily life and social production. In the current rapid industrialization process,environmental pollution is becoming more and more serious. Perform a good monitoring work on the water,analyze the heavy mental elements in water,and protect and control heavy metal pollution in water are important components of water resources protection work. Heavy metal elements in the natural environment are very difficult to be bio-degraded,will be accumulated in the water,soil,and get into the human body through the food chain,causing serious damage. This paper analyzes the current situation and harm of heavy metal pollution,and discusses and studies the development of heavy metal detection technology in surface water.%水资源在社会发展中发挥着至关重要的作用,直接影响着人们的日常生活和社会生产.在当前工业化进程不断加快,环境污染问题日趋严重的背景下,做好水体监测工作,对水体中的重金属元素进行分析,预防和控制水体重金属污染,是水资源保护工作的重要组成部分.重金属元素在自然环境中很难被生物降解,会在水体、土壤中不断富集,并通过食物链进入人体,造成严重的危害.本文对重金属污染的现状和危害进行了分析,并对地表水中重金属检测技术的发展进行了讨论和研究.

  3. Compliance status

    Energy Technology Data Exchange (ETDEWEB)

    Black, D.G.

    1995-06-01

    This section of the 1994 Hanford Site Environmental Report summarizes the activities conducted to ensure that the Hanford Site is in compliance with federal environmental protection statutes and related Washington State and local environmental protection regulations and the status of Hanford`s compliance with these requirements. Environmental permits required under the environmental protection regulations are discussed under the applicable statute.

  4. Technology status of autoclaved aerated concrete by utilizing mine tailings%利用矿山尾矿制备加气混凝土技术现状

    Institute of Scientific and Technical Information of China (English)

    罗立群; 舒伟

    2014-01-01

    根据发展循环经济和矿山清洁生产的开发思路,简述了矿山尾矿的产出和利用现状。针对尾矿堆存侵占土地、破坏生态环境、导致空气污染、易发生安全事故等危害,介绍了尾矿再选和大宗消纳等综合利用的两大途径。叙述了尾矿制备加气混凝土的技术特征,指出尾矿加气混凝土制品具有尾矿利用量大、节能降耗显著、保温隔热、质轻抗震、加工容易等综合优良性能,阐述了加气混凝土制备机理及其制品的性能表征,重点总结了利用铁尾矿、铜尾矿、黄金尾矿和其它矿山尾矿制备加气混凝土的技术现状。结合加气混凝土的生产和工程应用实际,提出尾矿制备加气混凝土应重点注意矿山尾矿粒度对建材原料的适应性、活化石灰的质量与原料中钙质矿物的影响、注重科学试验和人才培训、加强尾矿建材制品的力学性能研究等实际问题。%According to development idea on circular economy and clean production to exploiting mineral resources ,the present output and harm of producing on mine tailings were briefly reviewed .Tailings stockpiling have terrible effects on the expropriation of land ,the destruction of the ecological environment , causing air pollution ,easy to produce the safety accidents ,etc .Therefore ,two approaches of comprehensive utilization on tailings ,i .e .,recycling of useful components and bulk of consumption were introduced .On the basis of descriptions on the technical features of tailings ,related properties of autoclaved aerated concrete (AAC) with large amount of tailings utilization ,significant in energy saving ,thermal insulation ,light weight ,easy processing ,aseismatic performance were indicated respectively ,The technical status of utilizing iron tailings ,copper tailings ,gold tailings and other mine tailings to produce autoclaved aerated concrete was summarized intensively after the preparation mechanism

  5. Introduction: The moral status of technical artefacts

    NARCIS (Netherlands)

    Kroes, Peter; Verbeek, Peter-Paul; Kroes, Peter; Verbeek, Peter-Paul

    2014-01-01

    In recent decades, discussions about the question of how to morally assess technology and its influence on human beings have taken a new, intriguing twist. Issues about the moral status of technology -in the sense of whether technology itself or its influence on human life may be evaluated as morall

  6. Environmental control implications of generating electric power from coal. 1977 technology status report. Appendix D. Assessment of NO/sub x/ control technology for coal fired utility boilers. [Low-excess-air, staged combustion, flu gas recirculation and burner design

    Energy Technology Data Exchange (ETDEWEB)

    1977-12-01

    An NOx control technology assessment study was conducted to examine the effectiveness of low-excess-air firing, staged combustion, flue gas recirculation, and current burner/boiler designs as applied to coal-fired utility boilers. Significant variations in NOx emissions exist with boiler type, firing method, and coal type, but a relative comparison of emissions control performance, cost, and operational considerations is presented for each method. The study emphasized the numerous operational factors that are of major importance to the user in selecting and implementing a combustion modification technique. Staged combustion and low-excess-air operation were identified as the most cost-effective methods for existing units. Close control of local air/fuel ratios and rigorous combustion equipment maintenance are essential to the success of both methods. Flue gas recirculation is relatively ineffective and has the added concern of tube erosion. More research is needed to resolve potential corrosion concerns with low-NOx operating modes. Low-NOx burners in conjunction with a compartmentalized windbox are capable of meeting a 0.6-lb/million Btu emission level on new units. Advanced burner designs are being developed to meet research emission goals of approximately 0.25 lb/MBtu.

  7. Progress report and technology status development of an EG and G Berthold LB-150 alpha/beta particulate monitor for use on the East Tennessee Technology Park Toxic Substances Control Act Incinerator

    Energy Technology Data Exchange (ETDEWEB)

    Shor, J.T.; Singh, S.P.N. [Oak Ridge National Lab., TN (United States). Chemical Technology Div.; Gibson, L.V. Jr. [East Tennessee Technology Park, Oak Ridge, TN (United States). ASO Customer Services Div.

    1998-06-01

    The purpose of this project was to modify and evaluate a commercially available EG and G Berthold LB-150 alpha-beta radionuclide particulate monitor for the high-temperature and moisture-saturation conditions of the East Tennessee Technology Park (formerly K-25 Site) Toxic Substances Control Act (TSCA) Incinerator stack. The monitor was originally outfitted for operation at gas temperatures of 150 F on the defunct Los Alamos National Laboratory (LANL) controlled air incinerator, and the objective was to widen its operating envelope. A laboratory apparatus was constructed that simulated the effects of water-saturated air at the TSCA Incinerator stack-gas temperatures, 183 F. An instrumented set of heat exchangers was constructed to then condition the gas so that the radionuclide monitor could be operated without condensation. Data were collected under the conditions of the elevated temperatures and humidities and are reported herein, and design considerations of the apparatus are provided. The heat exchangers and humidification equipment performed as designed, the Mylar film held, and the instrument suffered no ill effects. However, for reasons as yet undetermined, the sensitivity of the radionuclide detection diminishes as the gas temperature is elevated, whether the gas is humidified or not. The manufacturer has had no experience with (a) the operation of the monitor under these conditions and (b) any commercial market that might exist for an instrument that operates under these conditions. The monitor was not installed into the radiologically contaminated environment of the TSCA Incinerator stack pending resolution of this technical issue.

  8. The Status and Inspiration on the Safety Detection Technology of Genetically Modified Organisms in European Union%欧盟转基因生物安全检测技术现状及启示

    Institute of Scientific and Technical Information of China (English)

    吴刚; 金芜军; 谢家建; 沈平; 李文龙; 宋贵文

    2015-01-01

    为了了解欧盟转基因生物安全检测技术发展现状,提高我国转基因安全监管水平。本研究根据对欧盟8家转基因检测相关机构现状的调查和分析结果,阐述了转基因检测过程中的关键技术要点及欧盟的实施情况,具体包括抽样与制样方法,转基因检测方法的循环验证与参数要求,样品的检测策略与实验室环境要求,以及检测结果的表述与不确定度评估。并结合我国转基因生物安全检测发展现状,提出了开展检测方法的实验室联合验证和加强转基因定量PCR检测技术的研发和应用的建议。%In order to view the current status and inspiration on the safety detection technology of genetically modified organisms in European Union, this study was fulfilled on the basis of visiting eight detection agencies for genetically modified organisms(GMO)in the European Union(EU). Several key technical points in GMO detection process and the implementation in EU were elaborately expounded. The specific contents included sampling and preparation methods of samples, loop verification of transgenic detection method and parameter requirements, strategies of sample testing and requirements of laboratory environments, representations of test results and evaluation of uncertainty. Finally, combined with the development status of GMO detection techniques in China, suggestions of carrying out inter-laboratory trial validation of detection method and strengthening quantitative PCR detection technology were proposed.

  9. Analysis of advanced conceptual designs for single-family-sized absorption chillers. Semi-annual report

    Energy Technology Data Exchange (ETDEWEB)

    None

    1978-04-05

    The objective of the research program is to develop and analyze new concepts for absorption cycles to improve the performance or reduce the cost (or both) of a 3-ton absorption chiller that can be used with solar-collected heat. New refrigerant-absorbent pairs, additives to currently used refrigerant-absorbent pairs, and modifications to the cycle are being investigated. For the initial analyses the use of a fluid at 160 to 230/sup 0/F from a solar collector as a heating source is assumed. In the initial analyses the chiller is to provide chilled water at 45/sup 0/F at full load; alternatively, if a new refrigerant-absorbent pair appears to be amenable for direct cooling of the occupied space, the temperature of the evaporator is to be 45/sup 0/F. Both water cooling and air cooling of the absorber and the condenser are being studied. The use of ambient air at 95/sup 0/F dry bulb and 75/sup 0/F wet bulb temperatures is assumed. With the water-cooled cycles, the initial and operating costs of a properly sized cooling tower will be included. The research consists of five principal tasks: (a) acquisition of information for analysis, (b) definition of criteria for selection of promising refrigerant-absorbent pairs, additives for currently used pairs, or cycle modifications, (c) preparation and analysis of conceptual designs, (d) comparison and selection of the promising new systems that warrant further study, and (e) recommendations for further research for each promising new system. Progress on each of these tasks is described. (WHK)

  10. Task 1.10 -- Biodesulfurization, Year 2. Semi-annual report, January 1--June 30, 1995

    Energy Technology Data Exchange (ETDEWEB)

    Olson, E.S.

    1995-12-31

    The main focus in this task is the application of desulfurization enzymes to remove sulfur from crude oil, diesel fuel, or resid precursors for needle cokes. The most important question to be answered is how to utilize the Rhodococcus desulfurization complex in a nonaqueous solvent or medium, such as the oil itself. Successful application of nonaqueous enzymology to this problem will involve finding ways to stabilize the active conformations of the enzymes and provide for easy recovery of the enzymes, perhaps in an immobilized-enzyme packed-bed reactor. A second objective is to explore biological systems that can catalyze the cleavage or organometallics in fossil fuels, such as metal porphyrins. A biodemetallation function could greatly aid in the refining of high-metal, high-sulfur crudes and bitumens. During this period, work was initiated to develop new rapid and highly quantitative assays for specific desulfurization activities in isolated and separated enzyme fractions. The preparation of water-soluble chlorophyllin was carried out for use in assaying for demetallation activity in microorganisms. Cleavage of the dark green porphyrin system in the chlorophyllin will be an indicator of activity that may be useful for cleavage of other metal porphyrins in crudes and bitumens.

  11. Heavy ion fusion program. Semi-annual progress report, October 1, 1979-March 30, 1980

    Energy Technology Data Exchange (ETDEWEB)

    1980-01-01

    HIF activity at ANL during FY 1980 has been primarily concentrated on conceptual design work, and on initial tests of the independently-phased rf acceleration cavities. Calculations for near-term foil-heating experiments were carried out, and a specific cost-effective synchrotron (Beam Development Facility) plan was developed. Program logics were further refined, and some conceptual reactor issues were addressed.

  12. Advanced MHD Algorithm for Solar and Space Science: lst Year Semi Annual Progress Report

    Science.gov (United States)

    Schnack, Dalton D.; Lionello, Roberto

    2003-01-01

    We report progress for the development of MH4D for the first and second quarters of FY2004, December 29, 2002 - June 6, 2003. The present version of MH4D can now solve the full viscous and resistive MHD equations using either an explicit or a semi-implicit time advancement algorithm. In this report we describe progress in the following areas. During the two last quarters we have presented poster at the EGS-AGU-EUG Joint Assembly in Nice, France, April 6-11, 2003, and a poster at the 2003 International Sherwood Theory Conference in Corpus Christi, Texas, April 28-30 2003. In the area of code development, we have implemented the MHD equations and the semi-implicit algorithm. The new features have been tested.

  13. Improved methods for water shutoff. Semi-annual report, May 1, 1996--September 30, 1996

    Energy Technology Data Exchange (ETDEWEB)

    Seright, R.S.

    1997-08-01

    In the United States, more than 20 billion barrels of water are produced each year during oilfield operations. Today, the cost of water disposal is typically between $0.25 and $0.50 per bbl for pipeline transport and $1.50 per bbl for trucked water. Therefore, there is a tremendous economic incentive to reduce water production if that can be accomplished without significantly sacrificing hydrocarbon production. For each 1% reduction in water production, the cost-savings to the oil industry could be between $50,000,000 and $100,000,000 per year. Reduced water production would result directly in improved oil recovery (IOR) efficiency in addition to reduced oil-production costs. A substantial positive environmental impact could also be realized if significant reductions are achieved in the amount of water produced during oilfield operations. In an earlier project, we identified fractures (either naturally or artificially induced) as a major factor that causes excess water production and reduced oil recovery efficiency, especially during waterfloods and IOR projects. We also found fractures to be a channeling and water-production problem that has a high potential for successful treatment by gels and certain other chemical blocking agents. By analogy, these blocking materials also have a high potential for treating narrow channels behind pipe and small casing leaks. We also determined that the ability of blocking agents to reduce permeability to water much more than that to oil is critical to the success of these blocking treatments in production wells if zones are not isolated during placement of the blocking agents.

  14. Semi-annual monitoring report for Barnes, Kansas, for July-December 2009.

    Energy Technology Data Exchange (ETDEWEB)

    LaFreniere, L. M.; Environmental Science Division

    2010-04-27

    The Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) operated a grain storage facility at Barnes, Kansas, during most of the interval 1949-1974. Carbon tetrachloride contamination was initially detected in 1986 in the town's public water supply wells. In 2006-2007, the CCC/USDA conducted a comprehensive targeted investigation at and near its former property in Barnes to characterize this contamination. Those results were reported previously (Argonne 2008a). In November 2007, the CCC/USDA began quarterly groundwater monitoring at Barnes. The monitoring is being conducted on behalf of the CCC/USDA by Argonne National Laboratory, in accord with the recommendations made in the report for the 2006-2007 targeted investigation (Argonne 2008a). The objective is to monitor the carbon tetrachloride contamination identified in the groundwater at Barnes. The sampling is presently conducted in a network of 28 individual monitoring wells (at 19 distinct locations), 2 public water supply wells, and 1 private well (Figure 1.1). The results of the 2006-2007 targeted investigation and the subsequent monitoring events (Argonne 2008a-d, 2009a,b) demonstrated the presence of carbon tetrachloride contamination in groundwater at levels exceeding the Kansas Department of Health and Environment (KDHE) Tier 2 risk-based screening level (RBSL) of 5.0 {micro}g/L for this compound. The contaminant plume appears to extend from the former CCC/USDA property northwestward, toward the Barnes public water supply wells. Information obtained during the 2006-2007 investigation indicates that at least one other potential source might have contributed to the groundwater contaminant plume (Argonne 2008a). The former agriculture building owned by the local school district, located immediately east of well PWS3, is also a potential source of the contamination. This current report presents the results of the seventh quarterly monitoring event, conducted in September-October, and also sampling of only the public wells in December 2009. During the September-October quarterly event, low-flow sampling methods were used to purge and sample all wells. This was the seventh event at Barnes during which the low-flow sampling method was used. After the September-October 2009 quarterly sampling event, the KDHE (2009) approved a change in the sampling frequency for the monitoring wells from quarterly to twice yearly. Quarterly sampling is to continue for the public water supply wells. Accordingly, in December 2009, only the public wells were sampled. All results for the six-month period July-December 2009 are reported here.

  15. Semi-annual report of the wind characteristics program element, April 1976--December 1976

    Energy Technology Data Exchange (ETDEWEB)

    Ramsdell, J. V.

    1977-01-01

    The Wind Characteristics Program Element (WCPE) provides wind information, through the Wind Energy Conversion Program (WECP), for those involved in energy program planning, design and evaluation of performance of wind energy conversion systems (WECS), selection of sites for WECS installation, and WECS operations. Currently the technical work within the WCPE is divided among four program areas. These areas are to provide wind characteristics for design and performance evaluation; site slection; resource assessment; and operations. Work is being undertaken in the first three areas.

  16. Idaho geothermal commercialization program. Semi-annual report, January-June 1979

    Energy Technology Data Exchange (ETDEWEB)

    McClain, D.W.; Eastlake, W.B.

    1979-06-01

    The task accomplished during the first six months of the cooperative agreement between the US Department of Energy and the Idaho Office of Energy is summarized, concentrating on geothermal resource data, regional and local development plans, energy and economic factors and institutional factors.

  17. Task 3 - pyrolysis of plastic waste. Semi-annual report, April 1--September 30, 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-05-01

    This report briefly describes progress in the development of a thermal decomposition process for volume reduction of spent ion-exchange resin. During the reporting period, two series of tests were performed. The mixed waste plastics test investigated the effectiveness of the process in concentrating radionuclide surrogates in a solids residual while yielding a surrogate-free condensate product. Preliminary results indicated the occurrence of solids carryover. The ion-exchange resin tests resulted in a cesium concentration in the unfiltered condensate of about 4 to 20 micrograms/gram, indicating that fine particulate material was passing through the reactor cyclone. Future work includes the evaluation of an auger reactor in place of the fluidized bed reactor to address the problem of reactor carryover. 2 figs., 7 tabs.

  18. Ultrascale Visualization Climate Data Analysis Tools (UV-CDAT): Semi-Annual Progress Report

    Energy Technology Data Exchange (ETDEWEB)

    Williams, D N

    2012-02-29

    This report summarizes work carried out by the Ultrascale Visualization Climate Data Analysis Tools (UV-CDAT) Team for the period of July 1, 2011 through December 31, 2011. It discusses highlights, overall progress, period goals, and collaborations and lists papers and presentations. The UV-CDAT team is positioned to address the following high-level visualization requirements: (1) Alternative parallel streaming statistics and analysis pipelines - Data parallelism, Task parallelism, Visualization parallelism; (2) Optimized parallel input/output (I/O); (3) Remote interactive execution; (4) Advanced intercomparison visualization; (5) Data provenance processing and capture; and (6) Interfaces for scientists - Workflow data analysis and visualization construction tools, Visualization interfaces.

  19. 76 FR 45861 - Agency Information Collection Activities: New Collection; Semi-Annual Progress Report for...

    Science.gov (United States)

    2011-08-01

    ... Grantees from the Children and Youth Exposed to Violence Program. (3) Agency form number, if any, and the... Children and Youth Exposed to Violence Program, created by the Violence Against Women Act of 2005 (VAWA... available to children, youth and their nonabusing parent or caretaker, when a child has been exposed...

  20. 76 FR 30389 - Agency Information Collection Activities: New collection Semi-Annual Progress Report for Grantees...

    Science.gov (United States)

    2011-05-25

    ... Grantees from the Children and Youth Exposed to Violence Program. (3) Agency form number, if any, and the... Children and Youth Exposed to Violence Program, created by the Violence Against Women Act of 2005 (VAWA... available to children, youth and their nonabusing parent or caretaker, when a child has been exposed...

  1. Colorado geothermal commercialization planning. Semi-annual progress report, January 1, 1979-June 30, 1979

    Energy Technology Data Exchange (ETDEWEB)

    Coe, B.A.

    1979-01-01

    The potential for developing the geothermal resources of Colorado is detailed. Constraints that are limiting geothermal energy development are described. Area development plans, an institutional analysis, and the outreach program are presented. (MHR)

  2. Wyoming geothermal commercialization planning. Semi-annual progress report, January 1, 1979-June 30, 1979

    Energy Technology Data Exchange (ETDEWEB)

    James, R.W.

    1979-06-30

    The objectives, project tasks, and specific task descriptions and products are reviewed. The resource assessment data for the state is not available and the planning activity is based on speculation at this date. (MHR)

  3. MODELLING THERMODYNAMICS OF ALLOYS FOR FUSION APPLICATION . Semi annual report for the Fusion Program

    Energy Technology Data Exchange (ETDEWEB)

    Caro, J A

    2007-07-31

    This research has two main objectives: (1) The development of computational tools to evaluate alloy properties, using the information contained in thermodynamic functions. We aim at improving the ability of classical potentials to account for complex alloy behavior; and (2) The application of these tools to predict properties of alloys under irradiation. Atomistic simulations of alloys at the empirical level face the challenge of correctly modeling basic thermodynamic properties. In the periods reported previously we develop a methodology to generalize many-body classic potentials to incorporate complex formation energy curves. Application to Fe-Cr allows us to predict the implications of the ab initio results of formation energy on the phase diagram of this alloy and to get a detailed insight into the processes leading to precipitation of {alpha}{prime} phase under irradiation. In particular in this period we report on the consequences of the negative heat of formation at low Cr composition on the short range order SRO existing in the {alpha} phase. We elaborate a simple description of SRO on a two phase alloy and compare the predictions with experiments. We provide a key to rationalize a diversity of experiments on SRO versus annealing time or irradiation dose.

  4. Semi-annual report of the Department of Energy, Office of Environmental Management, Quality Assessment Program

    Energy Technology Data Exchange (ETDEWEB)

    Sanderson, C.G.; Greenlaw, P.

    1996-07-01

    This report presents the results from the analysis of the 44th set of environmental quality assessment samples (QAP XLIV) that were received on or before June 3, 1996. The QAP is designed to test the quality of environmental measurements being reported to the Department of Energy by it`s contractors. Since 1976, samples have been prepared and analyzed by the Environmental measurements Laboratory.

  5. Nonpotential aerodynamics for windmills in shear wind, semi-annual report

    Energy Technology Data Exchange (ETDEWEB)

    Morino, L.

    1975-01-01

    A theoretical formulation is completed and extended to unsteady flows for analysis of lifting-surface Wind Energy Conversion Systems (WECS) aerodynamics. Its formulation is underway. A numerical formulation of Windmill Incompressible Lifting Surface Aerodynamics (WIlSA) is completed. This program is a modification of the program for Incompressible Lifting Surface aerodynamics. WILSA is completed, debugged, and exercised, and the results are detailed in an attachment. The power coefficient is presented as a function of angular speed. The theoretical formulation for the complex-configuration aerodynamic analysis of WECS includes the unsteadiness of the vorticity in the wake. A numerical formulation of the complex program, Windmill Incompressible Complex Configuration Aerodynamics (WICCA), is completed, debugged, and exercised and the results are presented in an attachment. Modification of WICCA for inclusion of the hub is completed and debugged. A completed preliminary simple formulation for inclusion of the boundary layer effects is provided.

  6. Semi-Annual Report on Work Supporting the International Forum for Reactor Aging Management (IFRAM)

    Energy Technology Data Exchange (ETDEWEB)

    Bond, Leonard J.; Brenchley, David L.

    2011-11-30

    During the first six months of this project, Pacific Northwest National Laboratory has provided planning and leadership support for the establishment of the International Forum for Reactor Aging Management (IFRAM). This entailed facilitating the efforts of the Global Steering Committee to prepare the charter, operating guidelines, and other documents for IFRAM. It also included making plans for the Inaugural meeting and facilitating its success. This meeting was held on August 4 5, 2011, in Colorado Springs, Colorado. Representatives from Asia, Europe, and the United States met to share information on reactor aging management and to make plans for the future. Professor Tetsuo Shoji was elected chairperson of the Leadership Council. This kick-off event transformed the dream of an international forum into a reality. On August 4-5, 2011, IFRAM began to achieve its mission. The work completed successfully during this period was built upon important previous efforts. This included the development of a proposal for establishing IFRAM and engaging experts in Asia and Europe. The proposal was presented at Engagement workshops in Seoul, Korea (October 2009) and Petten, The Netherlands (May 2010). Participants in both groups demonstrated strong interest in the establishment of IFRAM. Therefore, the Global Steering Committee was formed to plan and carry out the start-up of IFRAM in 2011. This report builds on the initial activities and documents the results of activities over the last six months.

  7. Process development studies of the bioconversion of cellulose and production of ethanol. Semi annual report

    Energy Technology Data Exchange (ETDEWEB)

    Wilke, C.R.; Blanch, H.W.

    1981-04-01

    Progress in the following process development studio is reported: economic evaluation of hydrolysis and ethanol fermentation schemes, economic evaluation of alternative fermentation processes, raw materials evaluation, and evaluation of pretreatment process. Microbiological and enzymatic studies reported are: production of cellulase enzyme from high yielding mutants, hydrolysis reactor development, xylose fermentation, and xylanese production. Fermentation and separation processes include: process development studies on vacuum fermentation and distillation, evaluation of low energy separations processes, large scale hollow fiber reactor development. (MHR)

  8. Utah geothermal commercialization planning. Semi-annual progress report, January 1, 1979--June 30, 1979

    Energy Technology Data Exchange (ETDEWEB)

    Green, S.; Wagstaff, L.W.

    1979-06-01

    The effects of the Utah geothermal planning project were concentrated on the Utah geothermal legislation, the Roosevelt Hot Springs time phased project plan and the Salt Lake County area development plan. Preliminary findings indicate a potential for heat pump utilization, based on market interest and the existence of suitable groundwater conditions. (MHR)

  9. Semi-annual progress report for the period ending December 31, 1958

    Energy Technology Data Exchange (ETDEWEB)

    None

    1958-01-01

    Studies were continued on radiation-induced reactions of nitrophenols and ferriprotoporphyrins. No changes in serum glycoproteins or seromucoids were detected in embryo chickens and young chicks as a result of irradiation. Progress is reported in studies on: the radiosensitivity of bacteriophages; the influence of x irradiation on thiamine transport in rat intestine; the histologic changes in bone, marrow, blood, and other body tissues due to localized ..beta.. irradiation; the effects of irradiation on nervous responses in cats; studies of fatty acid metabolism in rats; electrophoretic studies of abnormal plasma proteins; the specificity of thyroxin inhibition of acyl phosphatase; the pharmacological properties of Mellaril; the local toxicity of organic moderators for intact and abraded skin; the effects of oral quinoxaline on radiation mortality in mice; the development of leukemia and other neoplasms in mice receiving cell-free tissue extracts from a high-leukemia strain; the development of liver function tests using iodine-131-Rose Bengal; development of techniques and equipment of renograms using iodine-131 Miokon; the development of sensitive tests for the diagnosis of liver and kidney diseases; tracer studies of bone metabolism; the development of radiation detection instruments and chemical dosimeters; an underwater spark pulser, an improved illuminating system for the electron microscope; and techniques for electron microscopic studies of tissues and the spectrographic analysis of plant ash; studies on the fate and persistence of strontium-90 and cesium-137 in various locations and biological materials collected in the vicinity of the Nevada Test Site; and aerial surveying for evaluation of fall-out patterns.

  10. New Mexico geothermal commercialization planning. Semi-annual progress report, January 1, 1979-June 30, 1979

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez, P.; Scudella, G.; Fedor, D.

    1979-06-01

    The market potential for geothermal energy development in New Mexico is estimated. Barriers to market penetration and geothermal development initiatives were identified. Statutes and regulations affecting geothermal development are appended.

  11. Current Technology Research Status of Ni80Cr20 High Resistance Alloys for Electrical Heating%Ni80Cr20高电阻电热合金的工艺技术研究现状

    Institute of Scientific and Technical Information of China (English)

    于朝清; 易立; 徐永红; 章应; 朱强军; 代红伟

    2014-01-01

    The nickel-based alloy Ni80Cr20 is widely used as a kind of high resistance alloys for electrical heating materials. The paper introduces the research status of technology preparing Ni80Cr20 materials, including composition of design, smelting and ingot casting, processing, and heat treatment. The quality gap existing in the similar products in China and abroad, and the research focus in future are indicated.%镍基电阻合金Ni80Cr20是应用广泛的高电阻电热合金材料。本文介绍了Ni80Cr20高电阻电热合金材料的成分设计、熔炼铸锭、加工及热处理等工艺技术研究现状,并指出了国内外同类产品质量差距以及今后研究人员需要关注的重点。

  12. 冷轧含油废水处理技术及工艺现状%Treatment process and technological status of oil-bearing wastewater from cold rolling

    Institute of Scientific and Technical Information of China (English)

    曲余玲; 毛艳丽; 张东丽; 王涿

    2012-01-01

    冷轧含油废水的处理,对于钢铁企业减少污水排放量和新水用量、提高废水循环利用率具有重要的意义.介绍了国内外常用的冷轧含油废水处理技术,如重力分离法、气浮法、絮凝法、吸附法、膜分离法、生物法、膜生物反应器等,描述了冷轧含油废水处理工艺与现状,展望了冷轧含油废水处理的发展趋势.%For iron and steel enterprises,the treatment of oil-bearing wastewater from cold rolling has great significance to reducing the amount of effluent discharge and the dosage of fresh water needed, and improving the cyclic utilization water of wastewater- The commonly used treatment technologies of oil-bearing wastewater from cold rolling in China and abroad, such as gravity separation, air flotation, flocculation, adsorption, membrane separation, biological method and membrane bioreactors are introduced. In addition, the treatment process and present status of oil-bearing wastewater from cold rolling are described. Furthermore, the developing trend of oil-bearing wastewater from cold rolling is forecast.

  13. Status of the QCDOC project

    CERN Document Server

    Boyle, P A; Christ, N H; Cristian, C; Dong, Z; Gara, A; Joó, B; Kim, C; Levkova, L; Liao, X; Liu, G; Mawhinney, Robert D; Ohta, S; Wettig, T; Yamaguchi, A

    2002-01-01

    A status report is given of the QCDOC project, a massively parallel computer optimized for lattice QCD using system-on-a-chip technology. We describe several of the hardware and software features unique to the QCDOC architecture and present performance figures obtained from simulating the current VHDL design of the QCDOC chip with single-cycle accuracy.

  14. Status of spallation neutron source

    Energy Technology Data Exchange (ETDEWEB)

    Oyama, Yukio [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

    1997-03-01

    Existing and planned facilities using proton accelerator driven spallation neutron source are reviewed. These include new project of neutron science proposed from Japan Atomic Energy Research Institute. The present status of facility requirement and accelerator technology leads us to new era of neutron science such as neutron scattering research and nuclear transmutation study using very intense neutron source. (author)

  15. Status and Development Trend of Detection Technology on Abnormal Gas Area%瓦斯异常区域探测技术现状及发展趋势分析

    Institute of Scientific and Technical Information of China (English)

    兰泽全

    2015-01-01

    Abnormal gas area is the hazard and hidden factors cause to gas accident in the coal mine .In this paper, the status of detection technology on abnormal gas area was reviewed based on the interpretation of its meaning and characteristics.On the whole , detection technology includes two ways of contact detection and non-contact detection.Contact detection mainly occurred judgment by means of a variety of physical phenom-ena in the process of drilling construction , or to judge through the gas outburst prediction parameters of the test results.Non-contact detection is carried out based mainly on geophysical characteristics of sound , light, electricity and others of coal -rock medium.The non-contact detection technology was introduced as focus , such as radio wave perspective , geological radar , three-dimensional earthquake , acoustic emission and oth-ers.Finally, the development trend of the geophysical exploration technique was analyzed in view of advanced prediction distance , resolution and joint application.%瓦斯异常区域是引发煤矿瓦斯事故的重大隐患和隐蔽致灾因素。在阐释瓦斯异常区域含义及特点的基础上,综述了国内外针对瓦斯异常区域的探测技术现状,总体上包括接触式探测和非接触式探测两种方式。接触式探测主要通过钻孔施工过程中发生的顶钻、夹钻、吸钻、喷孔等各种物理现象来判断,或者通过对瓦斯突出预测基础参数的测试结果来判断。非接触式探测主要基于煤岩介质的声、光、电等地球物理特性进行。重点介绍了无线电波透视、地质雷达、三维地震、声发射等非接触式探测技术的研究和应用情况,并分析了地球物理探测技术在超前预测距离、分辨率和联合应用等方面的发展趋势。

  16. Spacecraft Fire Experiment (Saffire) Development Status

    DEFF Research Database (Denmark)

    Ruff, Gary A.; Urban, David L.; Fernandez-Pello, A. Carlos

    2014-01-01

    modeling effort will complement the experimental effort. An international topical team is collaborating with the NASA team in the definition of experiment requirements and performing supporting analysis, experimentation and technology development. The status of the overall experiment are summarized...

  17. ICARUS and status of liquid argon technology

    CERN Document Server

    Menegolli, Alessandro

    2012-01-01

    ICARUS T600 is the largest liquid Argon Time Projection Chamber (LAr TPC) detector ever realized. It operates underground at the LNGS laboratory in Gran Sasso. It has been smoothly running since summer 2010, collecting data with the CNGS (Cern to Gran Sasso) beam and with cosmic particles. Liquid Argon TPCs are indeed 'electronic bubble chambers', providing a completely uniform imaging calorimetry with unprecedented accuracy on such massive volumes. ICARUS T600 is internationally considered as a milestone towards the realization of the next generation of massive detectors (tens of ktons) for neutrino and rare event physics. Results will be presented on the data collected so far with the detector.

  18. Intake technologies: Research status: Final report

    Energy Technology Data Exchange (ETDEWEB)

    McGroddy, P.M.; Matousek, J.A.

    1989-03-01

    This report summarizes recent research activities related to fish protection at water intake structures, with particular emphasis on research reported on or conducted at pumped cooling-water intakes. Information gathered from 51 organizations (33 utilities, seven equipment manufacturers, six research organizations, two private engineering firms, one steel mill, and two government agencies) is provided along with specific summaries of EPRI-sponsored research on behavioral barriers at pumped and hydroelectric facilities. The level of research activity indicted by utilities at pumped intakes has decreased recently, although the interest in potential plant operational impact mitigative techniques remains high. Two studies sponsored by EPRI at pumped cooling-water intake structures evaluated the individual and combined deterrent capabilities of three devices: an air bubble curtain, pneumatic guns, and underwater strobe lights. A study conducted during 1985 and 1986 at Ontario Hydro's nearshore test facility, located in Lake Ontario off the Pickering Nuclear Generating Station intake, indicated that all three devices and combinations of devices elicited an avoidance response in alewife. The pneumatic gun exhibited the highest deterrent capability and the air bubble curtain the lowest. Studies conducted using the same deterrent devices at the intake of Central Hudson Gas and Electric Corporation's Roseton Generating Station on the Hudson River did not indicate an overall avoidance response; some species-specific responses to the devices were noted. 22 refs., 9 tabs.

  19. Status of MCFC stack technology at IHI

    Energy Technology Data Exchange (ETDEWEB)

    Hosaka, M.; Morita, T.; Matsuyama, T.; Otsubo, M. [Ishikawajima-Harima Heavy Industries Co., Ltd., Tokyo (Japan)

    1996-12-31

    The molten carbonate fuel cell (MCFC) is a promising option for highly efficient power generation possible to enlarge. IHI has been studying parallel flow MCFC stacks with internal manifolds that have a large electrode area of 1m{sup 2}. IHI will make two 250 kW stacks for MW plant, and has begun to make cell components for the plant. To improve the stability of stack, soft corrugated plate used in the separator has been developed, and a way of gathering current from stacks has been studied. The DC output potential of the plant being very high, the design of electric insulation will be very important. A 20 kW short stack test was conducted in 1995 FY to certificate some of the improvements and components of the MW plant. These activities are presented below.

  20. Hydrogen fluoride overtone technology: Status review

    Science.gov (United States)

    Duncan, William A.; Patterson, Stanley P.; Graves, Bruce R.; Holloman, Miles E.; Sollee, Jeffrey L.

    The hydrogen fluoride (HF) overtone chemical laser concept is being developed as a shorter wavelength alternative to the well known HF fundamental chemical laser to achieve higher brightness space-based laser platforms. This paper provides a brief review of the overtone experimental data base and then concentrates on the design of versatile gain generator hardware for optimizing the Hypersonic Low-Temperature (HYLTE) nozzle concept for HF overtone laser performance. The paper also describes a recent high power demonstration of overtone lasing on a scalable gain generator device that is directly traceable to a space-based laser weapon, utilizing uncooled resonator optics.