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Sample records for 3qcy09 tclp results

  1. SALTSTONE 3QCY09 TCLP RESULTS

    SciTech Connect

    Reigel, M.

    2009-12-14

    A Saltstone waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the third quarter of calendar year 2009 (3QCY09). After the prescribed 28 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846. The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the third quarter of the 2009 calendar year (3QCY09), Tank 50H accepted transfers of approximately 37 kgal from the Effluent Treatment Project (ETP) waste, approximately 5 kgal from Tank 710 - the H-Canyon General Purpose Evaporator, approximately 26 kgal from Tank 221H, approximately 319 kgal from the Modular Caustic Side Solvent Extraction Unit (MCU) Decontaminated Salt Solution Hold Tank (DSS-HT), and approximately 358 kgal from Tank 23H. The Saltstone Grout Sampling plan provides the South Carolina Department of Health and Environmental Control (SCDHEC) with the chemical and physical characterization strategy for the salt solution which is to be disposed of in the Z-Area Solid Waste Landfill (ISWLF). During operation, samples were collected from Tank 50H and grout samples prepared to determine the non-hazardous nature of the grout to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24(b) and R.61-79.268.48(a). Savannah River National Laboratory (SRNL) was asked to prepare saltstone from a sample of Tank 50H obtained August 5, 2009 during 3QCY09 to determine the non-hazardous nature of the grout. The samples were cured and shipped to Babcock & Wilcox Technical Services Group-Radioisotope and Analytical Chemistry Laboratory (B&WTSG-RACL) to

  2. SALTSTONE 3QCY09 TCLP RESULTS

    SciTech Connect

    Reigel, M.

    2010-01-13

    A Saltstone waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the third quarter of calendar year 2009 (3QCY09). After the prescribed 28 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846. The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the third quarter of the 2009 calendar year (3QCY09), Tank 50H accepted transfers of approximately 37 kgal from the Effluent Treatment Project (ETP) waste, approximately 5 kgal from Tank 710 - the H-Canyon General Purpose Evaporator, approximately 26 kgal from Tank 221H, approximately 319 kgal from the Modular Caustic Side Solvent Extraction Unit (MCU) Decontaminated Salt Solution Hold Tank (DSS-HT), and approximately 358 kgal from Tank 23H. The Saltstone Grout Sampling plan provides the South Carolina Department of Health and Environmental Control (SCDHEC) with the chemical and physical characterization strategy for the salt solution which is to be disposed of in the Z-Area Solid Waste Landfill (ISWLF). During operation, samples were collected from Tank 50H and grout samples prepared to determine the non-hazardous nature of the grout to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24(b) and R.61-79.268.48(a). Savannah River National Laboratory (SRNL) was asked to prepare saltstone from a sample of Tank 50H obtained August 5, 2009 during 3QCY09 to determine the non-hazardous nature of the grout. The samples were cured and shipped to Babcock & Wilcox Technical Services Group-Radioisotope and Analytical Chemistry Laboratory (B&WTSG-RACL) to

  3. SALTSTONE 4QCY11 TCLP RESULTS

    SciTech Connect

    Bannochie, C.

    2012-01-31

    The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the fourth quarter of the 2011 calendar year (4QCY11), Tank 50H accepted transfers of approximately 10 kgal from the Effluent Treatment Project (ETP), approximately 4 kgal from 211H, approximately 573 kgal from the Actinide Removal Process/Modular Caustic Side Solvent Extraction Unit (ARP/MCU) Decontaminated Salt Solution Hold Tank (DSS-HT), and approximately 5 kgal from other sources. The Saltstone Grout Sampling plan provides the South Carolina Department of Health and Environmental Control (SCDHEC) with the chemical and physical characterization strategy for the salt solution which is to be disposed of in the Z-Area Solid Waste Landfill (SWLF). During operation, samples were collected from Tank 50H and grout samples prepared to determine the non-hazardous nature of the grout to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24(b) and R.61-79.268.48(a). Savannah River National Laboratory (SRNL) was asked to prepare saltstone from samples of Tank 50H obtained Oct. 12, 2011 during 4QCY11 to determine the non-hazardous nature of the grout. The samples were cured and shipped to Babcock & Wilcox Technical Services Group-Radioisotope and Analytical Chemistry Laboratory (B&W TSG-RACL) to perform the Toxic Characteristic Leaching Procedure (TCLP) 2 and subsequent extract analysis on saltstone samples for the analytes required for the quarterly analysis saltstone sample. In addition to the eight toxic metals - arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver - analytes included the underlying hazardous constituents (UHC) antimony, beryllium, nickel, and thallium which could not be eliminated from analysis by process knowledge. B&W TSG-RACL provided subsamples to GEL Laboratories, LLC for analysis for the UHCs benzene, phenols and total and amenable cyanide.

  4. SALTSTONE 3QCY10 TCLP RESULTS

    SciTech Connect

    Reigel, M.

    2010-12-14

    The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the third quarter of the 2010 calendar year (3QCY10), Tank 50H accepted transfers of approximately 76 kgal from the Effluent Treatment Project (ETP), approximately 7 kgal from Tank 710 - the HCanyon General Purpose Evaporator, approximately 57 kgal from the H-Canyon Super Kukla campaign, approximately 58 kgal from the Modular Caustic Side Solvent Extraction Unit (MCU) Decontaminated Salt Solution Hold Tank (DSS-HT), and approximately 6 kgal from other sources. The Saltstone Grout Sampling plan provides the South Carolina Department of Health and Environmental Control (SCDHEC) with the chemical and physical characterization strategy for the salt solution which is to be disposed of in the Z-Area Solid Waste Landfill (ISWLF). During operation, samples were collected from Tank 50H and grout samples prepared to determine the non-hazardous nature of the grout to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24(b) and R.61-79.268.48(a). Savannah River National Laboratory (SRNL) was asked to prepare saltstone from samples of Tank 50H obtained July 1, 2010 during 3QCY10 to determine the non-hazardous nature of the grout. The samples were cured and shipped to Babcock & Wilcox Technical Services Group-Radioisotope and Analytical Chemistry Laboratory (B&W TSG-RACL) to perform the Toxic Characteristic Leaching Procedure (TCLP) and subsequent extract analysis on saltstone samples for the analytes required for the quarterly analysis saltstone sample. In addition to the eight toxic metals - arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver - analytes included the underlying hazardous constituents (UHC) antimony, beryllium, nickel, and thallium which could not be eliminated from analysis by process knowledge. B&W TSG-RACL provided subsamples to GEL Laboratories, LLC for analysis for the UHCs benzene, phenols and total

  5. SALTSTONE 2QCY11 TCLP RESULTS

    SciTech Connect

    Eibling, R.

    2011-07-28

    The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the second quarter of the 2011 calendar year (2QCY11), Tank 50H accepted transfers of approximately 15 kgal from the Effluent Treatment Project (ETP), approximately 2 kgal from Tank 710 - the H-Canyon General Purpose Evaporator, approximately 63 kgal from the HCanyon Super Kukla campaign, approximately 370 kgal from the Actinide Removal Process/Modular Caustic Side Solvent Extraction Unit (ARP/MCU) Decontaminated Salt Solution Hold Tank (DSS-HT), and approximately 10 kgal from other sources. The Saltstone Grout Sampling plan provides the South Carolina Department of Health and Environmental Control (SCDHEC) with the chemical and physical characterization strategy for the salt solution which is to be disposed of in the Z-Area Solid Waste Landfill (SWLF). During operation, samples were collected from Tank 50H and grout samples prepared to determine the non-hazardous nature of the grout to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24(b) and R.61-79.268.48(a). Savannah River National Laboratory (SRNL) was asked to prepare saltstone from samples of Tank 50H obtained April 5, 2011 during 2QCY11 to determine the non-hazardous nature of the grout. The samples were cured and shipped to Babcock & Wilcox Technical Services Group-Radioisotope and Analytical Chemistry Laboratory (B&W TSG-RACL) to perform the Toxic Characteristic Leaching Procedure (TCLP) and subsequent extract analysis on saltstone samples for the analytes required for the quarterly analysis saltstone sample. In addition to the eight toxic metals - arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver - analytes included the underlying hazardous constituents (UHC) antimony, beryllium, nickel, and thallium which could not be eliminated from analysis by process knowledge. B&W TSGRACL provided subsamples to GEL Laboratories, LLC for analysis for the

  6. SALTSTONE 1QCY10 TCLP RESULTS

    SciTech Connect

    Reigel, M.

    2010-06-02

    The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the first quarter of the 2010 calendar year (1QCY10), Tank 50H accepted transfers of approximately 32 kgal from the Effluent Treatment Project (ETP), approximately 10 kgal from Tank 710 - the H-Canyon General Purpose Evaporator, approximately 32 kgal from the H-Canyon Super Kukla campaign, and approximately 26 kgal from the Modular Caustic Side Solvent Extraction Unit (MCU) Decontaminated Salt Solution Hold Tank (DSS-HT). The Saltstone Grout Sampling plan provides the South Carolina Department of Health and Environmental Control (SCDHEC) with the chemical and physical characterization strategy for the salt solution which is to be disposed of in the Z-Area Solid Waste Landfill (ISWLF). During operation, samples were collected from Tank 50H and grout samples prepared to determine the non-hazardous nature of the grout to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24(b) and R.61-79.268.48(a). Savannah River National Laboratory (SRNL) was asked to prepare saltstone from samples of Tank 50H obtained January 8, 2010 during 1QCY10 to determine the non-hazardous nature of the grout. The samples were cured and shipped to Babcock & Wilcox Technical Services Group-Radioisotope and Analytical Chemistry Laboratory (B&W TSG-RACL) to perform the Toxic Characteristic Leaching Procedure (TCLP) and subsequent extract analysis on saltstone samples for the analytes required for the quarterly analysis saltstone sample. In addition to the eight toxic metals - arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver - analytes included the underlying hazardous constituents (UHC) antimony, beryllium, nickel, and thallium which could not be eliminated from analysis by process knowledge. B&W TSG-RACL provided subsamples to GEL Laboratories, LLC for analysis for the UHCs benzene, phenols and total and amenable cyanide.

  7. SALTSTONE 2QCY10 TCLP RESULTS

    SciTech Connect

    Reigel, M.

    2010-10-05

    The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the second quarter of the 2010 calendar year (2QCY10), Tank 50H accepted transfers of approximately 19 kgal from the Effluent Treatment Project (ETP), approximately 5 kgal from Tank 710 - the H-Canyon General Purpose Evaporator, approximately 42 kgal from the HCanyon Super Kukla campaign, and approximately 73 kgal from the Modular Caustic Side Solvent Extraction Unit (MCU) Decontaminated Salt Solution Hold Tank (DSS-HT). The Saltstone Grout Sampling plan provides the South Carolina Department of Health and Environmental Control (SCDHEC) with the chemical and physical characterization strategy for the salt solution which is to be disposed of in the Z-Area Solid Waste Landfill (ISWLF). During operation, samples were collected from Tank 50H and grout samples prepared to determine the non-hazardous nature of the grout to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24(b) and R.61-79.268.48(a). Savannah River National Laboratory (SRNL) was asked to prepare saltstone from samples of Tank 50H obtained April 4, 2010 during 2QCY10 to determine the non-hazardous nature of the grout. The samples were cured and shipped to Babcock & Wilcox Technical Services Group-Radioisotope and Analytical Chemistry Laboratory (B&W TSG-RACL) to perform the Toxic Characteristic Leaching Procedure (TCLP) and subsequent extract analysis on saltstone samples for the analytes required for the quarterly analysis saltstone sample. In addition to the eight toxic metals - arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver - analytes included the underlying hazardous constituents (UHC) antimony, beryllium, nickel, and thallium which could not be eliminated from analysis by process knowledge. B&W TSG-RACL provided subsamples to GEL Laboratories, LLC for analysis for the UHCs benzene, phenols and total and amenable cyanide.

  8. SALTSTONE 1QCY11 TCLP RESULTS

    SciTech Connect

    Reigel, M.

    2011-05-16

    Analytical Chemistry Laboratory (B&W TSG-RACL) to perform the Toxic Characteristic Leaching Procedure (TCLP) and subsequent extract analysis on saltstone samples for the analytes required for the quarterly analysis saltstone sample. In addition to the eight toxic metals-arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver-analytes included the underlying hazardous constituents (UHC) antimony, beryllium, nickel, and thallium which could not be eliminated from analysis by process knowledge. B&W TSG-RACL provided subsamples to GEL Laboratories, LLC for analysis for the UHCs benzene, phenols and total and amenable cyanide.

  9. SALTSTONE 1QCY08 TCLP RESULTS

    SciTech Connect

    Cozzi, A

    2009-01-27

    A Saltstone waste form was prepared in the Savannah River National Laboratory from a Tank 50H sample and Z-Area premix material for the first quarter of calendar year 2008 (1QCY08). After the prescribed 28 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846. The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the first quarter of the 2008 calendar year (1QCY08), in addition to Effluent Treatment Project (ETP) waste that is regularly added at approximately 10 kgal/month, Tank 50H received significant waste transfers from Tank 23H and from Tank 49H. The Saltstone Grout Sampling plan provides the South Carolina Department of Health and Environmental Control (SCDHEC) with the chemical and physical characterization strategy for the salt solution which is to be disposed of in the Z-Area Solid Waste Landfill (ISWLF). During operation, samples were collected from Tank 50H and grout samples prepared to determine the non-hazardous nature of the grout to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24(b) and R.61-79.268.48(a). SRNL was asked to prepare saltstone from a sample of Tank 50H obtained during 1QCY08 processing to determine the non-hazardous nature of the grout. The samples were cured and shipped to Babcock & Wilcox Technical Services Group-Radioisotope and Analytical Chemistry Laboratory (B&WTSGRACL) to perform the Toxic Characteristic Leaching Procedure (TCLP) and subsequent extract analysis on saltstone samples for the analytes required for the quarterly analysis saltstone sample. In addition to the eight toxic metals-arsenic, barium, cadmium, chromium

  10. SALTSTONE 2QCY09 TCLP RESULTS

    SciTech Connect

    Reigel, M.

    2009-10-29

    A Saltstone waste form was prepared in the Savannah River National Laboratory from a Tank 50H sample and Z-Area premix material for the second quarter of calendar year 2009 (2QCY09). After the prescribed 28 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846. The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the second quarter of the 2009 calendar year (2QCY09), Tank 50 accepted transfers of approximately 32 kgal from the Effluent Treatment Project (ETP) waste, approximately 4 kgal from Tank 710 - the H-Canyon General Purpose Evaporator, approximately 156 kgal from the Modular Caustic Side Solvent Extraction Unit (MCU) Decontaminated Salt Solution Hold Tank (DSS-HT), and approximately 484 kgal from Tank 23. The Saltstone Grout Sampling plan provides the South Carolina Department of Health and Environmental Control (SCDHEC) with the chemical and physical characterization strategy for the salt solution which is to be disposed of in the Z-Area Solid Waste Landfill (ISWLF). During operation, samples were collected from Tank 50H and grout samples prepared to determine the non-hazardous nature of the grout to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24(b) and R.61-79.268.48(a). SRNL was asked to prepare saltstone from a sample of Tank 50H obtained May 20, 2009 during 2QCY09 to determine the non-hazardous nature of the grout. The samples were cured and shipped to Babcock & Wilcox Technical Services Group-Radioisotope and Analytical Chemistry Laboratory (B&WTSGRACL) to perform the Toxic Characteristic Leaching Procedure (TCLP) and subsequent extract analysis

  11. SALTSTONE 2QCY08 TCLP RESULTS

    SciTech Connect

    Cozzi, A

    2009-03-23

    A Saltstone waste form was prepared in the Savannah River National Laboratory from a Tank 50H sample and Z-Area premix material for the second quarter of calendar year 2008 (2QCY08). After the prescribed 28 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846. The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the second quarter of the 2008 calendar year (2QCY08), Tank 50 accepted transfers of approximately 21 kgal from the Effluent Treatment Project (ETP) waste, approximately 3 kgal from Tank 710--the H-Canyon General Purpose Evaporator, and approximately 23 kgal form the Modular Caustic Side Solvent Extraction Unit (MCU) Decontaminated Salt Solution Hold Tank (DSS-HT). The Saltstone Grout Sampling plan provides the South Carolina Department of Health and Environmental Control (SCDHEC) with the chemical and physical characterization strategy for the salt solution which is to be disposed of in the Z-Area Solid Waste Landfill (ISWLF). During operation, samples were collected from Tank 50H and grout samples prepared to determine the non-hazardous nature of the grout to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24(b) and R.61-79.268.48(a). SRNL was asked to prepare saltstone from a sample of Tank 50H obtained June 5, 2008, during 2QCY08 processing to determine the non-hazardous nature of the grout. The samples were cured and shipped to Babcock & Wilcox Technical Services Group-Radioisotope and Analytical Chemistry Laboratory (B&WTSG-RACL) to perform the Toxic Characteristic Leaching Procedure (TCLP)2 and subsequent extract analysis on saltstone samples for

  12. SALTSTONE 4QCY08 TCLP RESULTS

    SciTech Connect

    Cozzi, A.

    2009-08-10

    The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the fourth quarter of the 2008 calendar year (4QCY08), Tank 50 accepted transfers of approximately 15 kgal from the Effluent Treatment Project (ETP) waste, approximately 12 kgal from Tank 710-the H-Canyon General Purpose Evaporator, approximately 5 kgal from the H-Canyon Super Kukla campaign, and approximately 34 kgal from the Modular Caustic Side Solvent Extraction Unit (MCU) Decontaminated Salt Solution Hold Tank (DSS-HT). The Saltstone Grout Sampling plan provides the South Carolina Department of Health and Environmental Control (SCDHEC) with the chemical and physical characterization strategy for the salt solution which is to be disposed of in the Z-Area Solid Waste Landfill (ISWLF).1 During operation, samples were collected from Tank 50H and grout samples prepared to determine the non-hazardous nature of the grout to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24(b) and R.61-79.268.48(a). SRNL was asked to prepare saltstone from a sample of Tank 50H obtained October 29, 2008 during 4QCY08 to determine the non-hazardous nature of the grout. The samples were cured and shipped to Babcock & Wilcox Technical Services Group-Radioisotope and Analytical Chemistry Laboratory (B&WTSG-RACL) to perform the Toxic Characteristic Leaching Procedure (TCLP)2 and subsequent extract analysis on saltstone samples for the analytes required for the quarterly analysis saltstone sample. In addition to the eight toxic metals-arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver-analytes included the underlying hazardous constituents (UHC) antimony, beryllium, nickel, and thallium which could not be eliminated from analysis by process knowledge.3 B&WTSG-RACL provided subsamples to GEL Laboratories, LLC for analysis for the UHCs benzene, phenols and total and amenable cyanide. A Saltstone waste form was prepared in the

  13. SALTSTONE 3QCY11 TCLP RESULTS

    SciTech Connect

    Bannochie, C.

    2012-01-12

    A Saltstone waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the third quarter of calendar year 2011 (3QCY11). After the prescribed 32 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846. The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the third quarter of the 2011 calendar year (3QCY11), Tank 50H accepted transfers of approximately 20 kgal from the Effluent Treatment Project (ETP), approximately 236 kgal from the Actinide Removal Process/Modular Caustic Side Solvent Extraction Unit (ARP/MCU) Decontaminated Salt Solution Hold Tank (DSS-HT), and approximately 25 kgal from other sources. The Saltstone Grout Sampling plan provides the South Carolina Department of Health and Environmental Control (SCDHEC) with the chemical and physical characterization strategy for the salt solution which is to be disposed of in the Z-Area Solid Waste Landfill (SWLF). During operation, samples were collected from Tank 50H and grout samples prepared to determine the non-hazardous nature of the grout to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24(b) and R.61-79.268.48(a). Savannah River National Laboratory (SRNL) was asked to prepare saltstone from samples of Tank 50H obtained July 7, 2011 during 3QCY11 to determine the non-hazardous nature of the grout. The samples were cured and shipped to Babcock & Wilcox Technical Services Group-Radioisotope and Analytical Chemistry Laboratory (B&W TSG-RACL) to perform the Toxic Characteristic Leaching Procedure (TCLP) and subsequent extract analysis on

  14. Saltstone 3QCY15 TCLP Toxicity and UTS Results

    SciTech Connect

    Miller, D.

    2015-12-09

    A Saltstone Disposal Facility (SDF) waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the third quarter of calendar year 2015 (3QCY15). After a 28 day cure, a sample of the SDF waste form was collected, and shipped to a certified laboratory for Toxic Characteristic and Universal Treatment Standards (UTS) analysis. The metals analysis is performed using the Toxic Characteristic Leaching Procedure (TCLP).1 The 3QCY15 saltstone sample results meet South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents (UHC).

  15. Saltone 2QCY15 TCLP toxicity and UTS results

    SciTech Connect

    Miller, D. H.

    2015-08-01

    A Saltstone Disposal Facility (SDF) waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the second quarter of calendar year 2015 (2QCY15). After a 28 day cure, a sample of the SDF waste form was collected, and shipped to a certified laboratory for Toxic Characteristic and Universal Treatment Standards (UTS) analysis. The metals analysis is performed using the Toxic Characteristic Leaching Procedure (TCLP)1. The 2QCY15 saltstone sample results meet South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents (UHC).

  16. Saltstone 1QCY15 TCLP Toxicity and UTS Results

    SciTech Connect

    Miller, D.

    2015-07-29

    A Saltstone Disposal Facility (SDF) waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the first quarter of calendar year 2015 (1QCY15). After a 28 day cure, a sample of the SDF waste form was collected, and shipped to a certified laboratory for Toxic Characteristic and Universal Treatment Standards (UTS) analysis. The metals analysis is performed using the Toxic Characteristic Leaching Procedure (TCLP). The 1QCY15 saltstone sample results meet South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents (UHC).

  17. Saltstone 2QCY15 TCLP toxicity and UTS results

    SciTech Connect

    Miller, D. H.

    2015-07-31

    A Saltstone Disposal Facility (SDF) waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the second quarter of calendar year 2015 (2QCY15). After a 28 day cure, a sample of the SDF waste form was collected, and shipped to a certified laboratory for Toxic Characteristic and Universal Treatment Standards (UTS) analysis. The metals analysis is performed using the Toxic Characteristic Leaching Procedure (TCLP)¹. The 2QCY15 saltstone sample results meet South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents (UHC).

  18. Saltstone 4QCY14 TCLP Toxicity and UTS Results

    SciTech Connect

    Miller, D.

    2015-03-25

    A Saltstone Disposal Facility (SDF) waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the fourth quarter of calendar year 2014 (4QCY14). After a 47 day cure, a sample of the SDF waste form was collected, and shipped to a certified laboratory for Toxic Characteristic and Universal Treatment Standards (UTS) analysis. The metals analysis is performed using the Toxic Characteristic Leaching Procedure (TCLP) . The 4QCY14 saltstone sample results show that the saltstone is Resource Conservation Recovery Act (RCRA) nonhazardous, but is greater than the universal treatment standard for land disposal. The Saltstone Production Facility (SPF) and SDF were in a maintenance outage during the 4QCY14. Thus no processing or disposal of saltstone, as characterized by this 4QCY14 sample, occurred.

  19. Saltstone 4QCY14 TCLP Toxicity and UTS Results

    SciTech Connect

    Miller, D. H.

    2015-03-25

    A Saltstone Disposal Facility (SDF) waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the fourth quarter of calendar year 2014 (4QCY14). After a 47 day cure, a sample of the SDF waste form was collected, and shipped to a certified laboratory for Toxic Characteristic and Universal Treatment Standards (UTS) analysis. The metals analysis is performed using the Toxic Characteristic Leaching Procedure (TCLP) 1 . The 4QCY14 saltstone sample results show that the saltstone is Resource Conservation Recovery Act (RCRA) nonhazardous, but is greater than the universal treatment standard for land disposal. The Saltstone Production Facility (SPF) and SDF were in a maintenance outage during the 4QCY14. Thus no processing or disposal of saltstone, as characterized by this 4QCY14 sample, occurred.

  20. Creosote-treated wood poles and crossarms: Toxicity Characteristic Leaching Procedure (TCLP) results

    SciTech Connect

    Horn, M.E. ); Holcombe, L.; Owens, J.B. )

    1992-07-01

    The objective of this study was to develop a quantitative database on leachable concentrations of cresols (i.e., m-, o- and p-cresol isomers) from a population of creosote-treated utility wood poles and crossarms by application of the Toxicity Characteristic Leaching Procedure (TCLP). The TCLP was promulgated by the US Environmental Protection Agency (EPA) in March 1990 (55FR 11798). Data generated in this study indicate that creosote-treated utility poles and crossarms are non-hazardous. Measured concentrations of total cresols and other semi-volatile organic compounds, from wood subjected to TCLP analysis, were an order of magnitude or more below their current Toxicity Characteristic (TC) regulatory levels. The wood analyzed in this study consisted of 54 samples of wood poles and 6 crossarms. Subsamples, removed from full cross sectional slices of poles and crossarms, were prepared according to EPA procedures, subjected to the TCLP, and the resultant leachates analyzed for the presence of cresols and other semi-volatile compounds.

  1. Creosote-treated wood poles and crossarms: Toxicity Characteristic Leaching Procedure (TCLP) results. Interim report

    SciTech Connect

    Horn, M.E.; Holcombe, L.; Owens, J.B.

    1992-07-01

    The objective of this study was to develop a quantitative database on leachable concentrations of cresols (i.e., m-, o- and p-cresol isomers) from a population of creosote-treated utility wood poles and crossarms by application of the Toxicity Characteristic Leaching Procedure (TCLP). The TCLP was promulgated by the US Environmental Protection Agency (EPA) in March 1990 (55FR 11798). Data generated in this study indicate that creosote-treated utility poles and crossarms are non-hazardous. Measured concentrations of total cresols and other semi-volatile organic compounds, from wood subjected to TCLP analysis, were an order of magnitude or more below their current Toxicity Characteristic (TC) regulatory levels. The wood analyzed in this study consisted of 54 samples of wood poles and 6 crossarms. Subsamples, removed from full cross sectional slices of poles and crossarms, were prepared according to EPA procedures, subjected to the TCLP, and the resultant leachates analyzed for the presence of cresols and other semi-volatile compounds.

  2. SALTSTONE CY07 TCLP RESULTS

    SciTech Connect

    Cozzi, A

    2008-06-25

    Saltstone waste forms were prepared in the Savannah River National Laboratory from Tank 50H samples and Z-Area premix material for each of the four quarters of calendar year 2007 (CY07). After the prescribed 28 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846.

  3. Model for TCLP Releases from Waste Glasses

    SciTech Connect

    Kim, Dong-Sang; Vienna, John D.

    2003-05-01

    A first-order property model for normalized Toxicity Characteristic Leaching Procedure (TCLP) release as a function of glass composition was developed using data collected from various studies. The normalized boron release is used to estimate the release of toxic elements based on the observation that the boron release represents the conservative release for those constituents of interest. The current TCLP model has two targeted application areas: (1) delisting of waste-glass product as radioactive (not mixed) waste and (2) designating the glass wastes generated from waste-glass research activities as hazardous or non-hazardous. This report describes the data collection and model development for TCLP releases and discusses the issues related to the application of the model.

  4. SALTSTONE 4QCY10 TCLP RESULTS

    SciTech Connect

    Reigel, M.

    2011-03-31

    Saltstone waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the fourth quarter of calendar year 2010 (4QCY10). After the prescribed 28 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846.

  5. Saltstone 3QCY14 TCLP results

    SciTech Connect

    Miller, D. H.

    2014-12-01

    A saltstone waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the third quarter of calendar year 2014 (3QCY14). After a 78 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846.

  6. Saltstone 1QCY13 TCLP Results

    SciTech Connect

    Eibling, R. E.

    2013-07-08

    A Saltstone waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the first quarter of calendar year 2013 (1QCY13). After a 49 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846.

  7. SALTSTONE 4QCY13 TCLP RESULTS

    SciTech Connect

    Miller, D.

    2014-04-23

    A Saltstone waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the fourth quarter of calendar year 2013 (4QCY13). After a 62 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846.

  8. Saltstone 2QCY13 TCLP Results

    SciTech Connect

    Reigel, M. M.

    2013-10-29

    A Saltstone waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the second quarter of calendar year 2013 (2QCY13). After a 49 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846.

  9. Saltstone 3QCY13 TCLP Results

    SciTech Connect

    Miller, D. H.

    2013-12-20

    A Saltstone waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the third quarter of calendar year 2013 (3QCY13). After a 63 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846.

  10. Saltstone 4QCY12 TCLP results

    SciTech Connect

    Reigel, M. M.

    2013-03-14

    A Saltstone waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the fourth quarter of calendar year 2012 (4QCY12). After a 48 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846.

  11. SALTSTONE 1QCY14 TCLP RESULTS

    SciTech Connect

    Miller, D.

    2014-06-19

    A Saltstone waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the first quarter of calendar year 2014 (1QCY14). After a 64 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846.

  12. Saltstone 3QCY12 TCLP Results

    SciTech Connect

    Eibling, R. E.

    2012-12-19

    A Saltstone waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the third quarter of calendar year 2012 (3QCY12). After a 34 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846.

  13. SALTSTONE 1QCY09 TCLP RESULTS

    SciTech Connect

    Reigel, M.; Cozzi, A.

    2009-07-20

    A Saltstone waste form was prepared in the Savannah River National Laboratory from a Tank 50H sample and Z-Area premix material for the first quarter of calendar year 2009 (1QCY09). After the prescribed 28 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846.

  14. SALTSTONE 3QCY08 TCLP RESULTS

    SciTech Connect

    Cozzi, A.

    2009-04-21

    A Saltstone waste form was prepared in the Savannah River National Laboratory from a Tank 50H sample and Z-Area premix material for the third quarter of calendar year 2008 (3QCY08). After the prescribed 28 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846.

  15. Investigations of metal leaching from mobile phone parts using TCLP and WET methods.

    PubMed

    Yadav, Satyamanyu; Yadav, Sudesh

    2014-11-01

    Metal leaching from landfills containing end-of-life or otherwise discarded mobile phones poses a threat to the environment as well as public health. In the present study, the metal toxicity of printed wire boards (PWBs), plastics, liquid crystal displays (LCDs) and batteries of mobile phones was assessed using the Toxicity Characteristics Leaching Procedures (TCLP) and the Waste Extraction Test (WET). The PWBs failed TCLP for Pb and Se, and WET for Pb and Zn. In WET, the two PWB samples for Pb and Zn and the battery samples for Co and Cu failed the test. Furthermore, the PWBS for Ni and the battery samples for Ni and Co failed the WET in their TCLP leachates. Both, Ni and Co are the regulatory metals in only WET and not covered under TCLP. These observations indicate that the TCLP seems to be a more aggressive test than the WET for the metal leaching from the mobile phone parts. The compositional variations, nature of leaching solution (acetate in TCLP and citrate in WET) and the redox conditions in the leaching solution of the PWBs resulted in different order of metals with respect to their amounts of leaching from PWBs in TCLP (Fe > Pb > Zn > Ni > Co > Cu) and WET (Zn > Fe > Ni > Pb > Cu). The metal leaching also varied with the make, manufacturing year and part of the mobile phone tested. PWBs, plastics and batteries should be treated as hazardous waste. Metal leaching, particularly of Se and Pb, from mobile phones can be harmful to the environment and human health. Therefore, a scientifically sound and environmentally safe handling and disposal management system needs to be evolved for the mobile phone disposal. Copyright © 2014 Elsevier Ltd. All rights reserved.

  16. The effect of quench rate on the TCLP and PCT durability of environmental waste glass

    SciTech Connect

    Resce, J.L.; Wolff, B.M.; Jurgensen, A.R.

    1995-12-31

    The effect of quench rate and the resulting devitrification on the durability of environmental waste glasses was examined for a set of 16 model glasses. The glasses were derived from a large glass composition space, i.e. {open_quotes}hyperspace glasses,{close_quotes} which were previously developed. In this study, a subset of this space has been examined for chemical durability by both the 7-Day Product Consistency Test (PCT) and the Toxicity Characteristic Leaching Procedure (TCLP) tests. This subspace is composed of six variable components (Fe{sub 2}O{sub 3}, SiO{sub 2}, Al{sub 2}O{sub 3}, B{sub 2}O{sub 3}, Na{sub 2}O, and CaO) and three fixed-level components (BaO, PbO, and NiO). The approximate oxide composition of each glass is listed. The glass melts were cast into molds to produce disks, which were quenched at two different rates. The PCT sodium normalized release rate (NaRR) and the TCLP releases of Ni and Ba for both the low and high Fe{sub 2}O{sub 3} glasses are reported. These results show that there is almost no devitrification with either quench rate for the low iron glasses, and that there is negligible change in durability. For the high iron glasses, however, some of the slow quenched glasses are significantly more devitrified and crystalline. In some glasses, this increased crystallinity was found to lower the NaNRR and Ba TCLP durability. TCLP Ni release was negligible in both cases.

  17. Critical parameters and TCLP performance of the RFP microwave solidification system

    SciTech Connect

    Sprenger, G.S.

    1993-01-01

    Two series of experiments were conducted at Rocky Flats Plant (RFP) to identify the critical operating parameters for microwave solidification and to evaluate the performance of the product against the EPA's Toxicity Characteristic Leach Procedure (TCLP). A surrogate hydroxide coprecipitation sludge spiked with heavy metals was used in the study. The RFP process uses microwave energy to heat and melt the waste into a vitreous final form that is suitable for land disposal. The results of the study indicate that waste loading and borax content in the glass forming frit are critical in the treatment of hydroxide sludge. Also, the product will easily satisfy EPA's limitations for land disposal. These results are very encouraging and support RFP's commitment to the use of microwave technology for treatment of various mixed waste streams at the facility.

  18. Leaching Behavior of Heavy Metals from Cement Pastes Using a Modified Toxicity Characteristic Leaching Procedure (TCLP).

    PubMed

    Huang, Minrui; Feng, Huajun; Shen, Dongsheng; Li, Na; Chen, Yingqiang; Shentu, Jiali

    2016-03-01

    As the standard toxicity characteristic leaching procedure (TCLP) can not exhaust the acid neutralizing capacity of the cement rotary kiln co-processing solid wastes products which is particularly important for the assessment of the leaching concentrations of heavy metals. A modified TCLP was proposed. The extent of leaching of heavy metals is low using the TCLP and the leaching performance of the different metals can not be differentiated. Using the modified TCLP, however, Zn leaching was negligible during the first 180 h and then sharply increased (2.86 ± 0.18 to 3.54 ± 0.26 mg/L) as the acidity increased (pH < 6.0). Thus, Zn leaching is enhanced using the modified TCLP. While Pb leached readily during the first 126 h and then leachate concentrations decreased to below the analytical detection limit. To conclude, this modified TCLP is a more suitable method for these cement rotary kiln co-processing products.

  19. A Comparative Evaluation of Two Extraction Procedures: The TCLP and the EP

    DTIC Science & Technology

    1992-10-01

    TECHNICAL REPORT EL-92-33 A COMPARATIVE EVALUATION OF TWO EXTRACTION PROCEDURES: THE TCLP AND THE EP AD-A259 346 by R. Mark Bricka , Teresa T. Holmes...Extraction Procedures: Interagency Agreement The TCLP and the EP No. DA930146-01-05 6. AUTHOR(S) R. Mark Bricka , Teresa T. Holmes, M. John Cullinane 7...Mr. David Friedman of the EPA Office of Solid Waste. The report was prepared by Mr. R. Mark Bricka , Ms. Teresa T. Holmes, and Dr. M. John Cullinane of

  20. Application of inorganic-contaminated groundwater to surface soils and compliance with toxicity characteristic (TCLP) regulations

    SciTech Connect

    Bergren, C.L.; Flora, M.A. ); Jackson, J.L.; Hicks, E.M. )

    1991-01-01

    The Westinghouse Savannah River Company (WSRC) is currently implementing a Purged Water Management Program (PWMP) at the Savannah River Site (SRS) near Aiken, South Carolina. A variety of constituents and disposal strategies are being considered. Constituents investigated in the PWMP include radionuclides, organics, and inorganics (As, Ba, Cd, Cr, Pb, Hg, Se, and Ag). One practical disposal alternative is to discharge purged water (all constituents below regulatory levels) to the ground surface near the monitoring well that is being purged. The purpose of this investigation is to determine if long-term application of purged water that contains inorganic constituents (below regulatory levels) to surface soils will result in the accumulation of inorganics such that the soil becomes a hazardous waste according to the Toxicity Characteristic regulations (40 CFR Part 261.24). Two study soils were selected that encompass the range of soils found at the SRS: Lakeland and Orangeburg. Laboratory batch equilibrium studies indicate that the soils, although able to retain a large amount of inorganics, will not exceed Toxicity Characteristic concentrations when subjected to the TCLP. Field studies are underway to confirm this.

  1. Application of inorganic-contaminated groundwater to surface soils and compliance with toxicity characteristic (TCLP) regulations

    SciTech Connect

    Bergren, C.L.; Flora, M.A.; Jackson, J.L.; Hicks, E.M.

    1991-12-31

    The Westinghouse Savannah River Company (WSRC) is currently implementing a Purged Water Management Program (PWMP) at the Savannah River Site (SRS) near Aiken, South Carolina. A variety of constituents and disposal strategies are being considered. Constituents investigated in the PWMP include radionuclides, organics, and inorganics (As, Ba, Cd, Cr, Pb, Hg, Se, and Ag). One practical disposal alternative is to discharge purged water (all constituents below regulatory levels) to the ground surface near the monitoring well that is being purged. The purpose of this investigation is to determine if long-term application of purged water that contains inorganic constituents (below regulatory levels) to surface soils will result in the accumulation of inorganics such that the soil becomes a hazardous waste according to the Toxicity Characteristic regulations (40 CFR Part 261.24). Two study soils were selected that encompass the range of soils found at the SRS: Lakeland and Orangeburg. Laboratory batch equilibrium studies indicate that the soils, although able to retain a large amount of inorganics, will not exceed Toxicity Characteristic concentrations when subjected to the TCLP. Field studies are underway to confirm this.

  2. Comparison of TCLP and long-term PCT performance on low-level mixed waste glasses

    SciTech Connect

    Cicero, C.A.; Andrews, M.K.; Bickford, D.F.

    1994-06-01

    The Mixed Waste Integrated Program (MWIP) of the US Department of Energy (DOE) is currently investigating technologies for conversion of low-level mixed waste (LLMW) into a form suitable for permanent disposal. Vitrification is one of the preferred technologies since it is capable of consistently producing a durable, leach resistant wasteform, while simultaneously minimizing disposal volumes. Since vitrification of LLMW is a relatively new concept, final wasteform specifications have not been developed. The Savannah River Technology Center (SRTC) of the Westinghouse Savannah River Company (WSRC) has developed the Product Consistency Test (PCI), which is a 7-day leaching procedure for glass. Comparison indicates that both tests have merit where LLMW glasses are concerned. The TCLP is an important test for determining the release of metals and for allowing the wasteform to be delisted while the PCT is more useful for determining consistent production of durable glass. It is a better indicator of the behavior of glass in disposal site conditions. Most aggressive leaching of common oxide glasses occurs under caustic rather than acidic conditions, therefore it is necessary to perform both tests. Further tests will be conducted using additional glass compositions and variations in the TCLP and the PCT.

  3. Identification and leaching characteristics of sludge generated from metal pickling and electroplating industries by Toxicity Characteristics Leaching Procedure (TCLP).

    PubMed

    Vijay, Ritesh; Sihorwala, T A

    2003-06-01

    One of India's major concerns is the increasing level of land pollution largely due to the uncontrolled disposal of industrial solid and hazardous waste. With rapid industrialization, the generation of industrial solid and hazardous waste has increased appreciably and the nature of waste generated has become complex. Their impacts on the ecological bodies are noticeable. The article describes the details of studies conducted using Toxicity Characteristics Leaching Procedure, to estimate the toxicity effects of the metals viz., chromium, zinc, manganese, iron, nickel, cobalt and copper by the Zero Headspace Extractor for the sludges generated from effluent treatment plant of steel tube, wire and plating industries on environment constituents like groundwater, surface water and land. Toxicity Characteristics Leaching Procedure determines the mobility of organic and inorganic analytes of liquid, solid or multiphase waste from hazardous solid wastes in the form of primary and secondary extracts. These extracts are mixed in equal volume proportion and analyzed by Direct Reading 2000 spectrophotometer. The amount of heavy metals observed during the studies in the leachates were found and the results were compared with Hazardous Waste categories as per Indian Standards. TCLP regulatory limits given by United States Environment Protection Agency (USEPA) and Germany Leachate Quality Standards and it was observed that they were on higher side, needing a proper preventive concept of sludge management including handling, treatment, recovery and disposal.

  4. Stabilization of inorganic mixed waste to pass the TCLP and STLC tests using clay and pH-insensitive additives

    SciTech Connect

    Bowers, J.S.; Anson, J.R.; Painter, S.M.

    1995-12-31

    Stabilization is a best demonstrated available technology, or BDAT. This technology traps toxic contaminants in a matrix so that they do not leach into the environment. The stabilization process routinely uses pozzolanic materials. Portland cement, fly ash-lime mixes, gypsum cements, and clays are some of the most common materials. In many instances, materials that can pass the Toxicity Characteristic Leaching Procedure (TCLP the federal leach test) or the Soluble Threshold Leachate Concentration (STLC the California leach test) must have high concentrations of lime or other caustic material because of the low pH of the leaching media. Both leaching media, California`s and EPA`s, have a pH of 5.0. California uses citric acid and sodium citrate while EPA uses acetic acid and sodium acetate. The concentration in the leachate is approximately ten times higher for the STLC procedure than the TCLP. These media can form ligands that provide excellent metal leaching. Because of the aggressive nature of the leaching medium, stabilized wastes in many cases will not pass the leaching tests. At the Lawrence Livermore National Laboratory (LLNL), additives such as dithiocarbamates and thiocarbonates, which are pH-insensitive and provide resistance to ligand formation, are used in the waste stabilization process. Attapulgite, montmorillonite, and sepiolite clays are used because they are forgiving (recipe can be adjusted before the matrix hardens) when formulating a stabilization matrix, and they have a neutral pH. By using these clays and additives, LLNL`s highly concentrated wastewater treatment sludges have passed the TCLP and STLC tests. The most frequently used stabilization process consists of a customized recipe involving waste sludge, clay and dithiocarbamate salt, mixed with a double planetary mixer into a pasty consistency. TCLP and STLC data on this waste matrix have shown that the process matrix meets land disposal requirements.

  5. Stabilization of inorganic mixed waste to pass the TCLP and STLC tests using clay and pH-insensitive additives

    SciTech Connect

    Bowers, J.S.; Anson, S.M.; Painter, S.M.

    1995-09-01

    Stabilization is a best demonstrated available technology, or BDAT, as defined by the U.S. Environmental Protection Agency (EPA) in Title 40, part 268, of the Code of Federal Regulations (40 CFR 268). This technology traps toxic contaminants (usually both chemically and physically) in a matrix so that they do not. leach into the environment. Typical contaminants that are trapped by stabilization are metals (mostly transition metals) that exhibit the characteristic of toxicity as defined by 40 CFR part 261. The stabilization process routinely uses pozzolanic materials. Portland cement, fly ash-lime mixes, gypsum cements, and clays are some of the most common materials. They are inexpensive, easy to use, and effective for wastes containing low concentrations of toxic materials. At the Lawrence Livermore National Laboratory (LLNL), additives such as dithiocarbamates and thiocarbonates, which are pH-insensitive and provide resistance to ligand formation are used in the waste stabilization process. Attapulgite, montmorillonite, and sepiolite clays are used because they are forgiving (recipe can be adjusted before the matrix hardens) when formulating a stabilization matrix, and they have a neutral pH. By using these clays and additives, LLNL`s highly concentrated wastewater treatment sludges have passed the TCLP and STLC tests. The most frequently used stabilization process consists of a customized recipe involving waste sludge, clay and dithiocarbamate salt, mixed with a double planetary mixer into a pasty consistency. TCLP and STLC data on this waste matrix have shown that the process matrix meets land disposal requirements.

  6. Stabilization of inorganic mixed waste to pass the TCLP and STLC tests using clay and pH-insensitive additives

    SciTech Connect

    Bowers, J.S.; Anson, J.R.; Painter, S.M.; Maitino, R.E.

    1995-03-01

    Stabilization traps toxic contaminants (usually both chemically and physically) in a matrix so that they do not leach into the environment. Typical contaminants are metals (mostly transition metals) that exhibit the characteristic of toxicity. The stabilization process routinely uses pozzolanic materials. Portland cement, fly ash-lime mixes, gypsum cements, and clays are some of the most common materials. In many instances, materials that can pass the Toxicity Characteristic Leaching Procedure (TCLP-the federal leach test) or the Soluble Threshold Leachate Concentration (STLC-the California leach test) must have high concentrations of lime or other caustic material because of the low pH of the leaching media. Both leaching media, California`s and EPA`s, have a pH of 5.0. California uses citric acid and sodium citrate while EPA uses acetic acid and sodium acetate. These media can form ligands that provide excellent metal leaching. Because of the aggressive nature of the leaching medium, stabilized wastes in many cases will not pass the leaching tests. At the Lawrence Livermore National Laboratory, additives such as dithiocarbamates and thiocarbonates, which are pH-insensitive and provide resistance to ligand formation, are used in the waste stabilization process. Attapulgite, montmorillonite, and sepiolite clays are used because they are forgiving (recipe can be adjusted before the matrix hardens). The most frequently used stabilization process consists of a customized recipe involving waste sludge, clay and dithiocarbamate salt, mixed with a double planetary mixer into a pasty consistency. TCLP and STLC data on this waste matrix have shown that the process matrix meets land disposal requirements.

  7. Evaluation of Mobility, Bioavailability and Toxicity of Pb and Cd in Contaminated Soil Using TCLP, BCR and Earthworms

    PubMed Central

    Kede, Maria Luiza F. M.; Correia, Fabio V.; Conceição, Paulo F.; Salles Junior, Sidney F.; Marques, Marcia; Moreira, Josino C.; Pérez, Daniel V.

    2014-01-01

    The objective of the present study was to investigate the reduction of mobility, availability and toxicity found in soil contaminated with lead (Pb) and cadmium (Cd) from Santo Amaro Municipality, Bahia, Brazil using two combined methods, commonly tested separately according to the literature: metal mobilization with phosphates and phytoextraction. The strategy applied was the treatment with two sources of phosphates (separately and mixed) followed by phytoremediation with vetiver grass (Vetiveria zizanioides (L.)). The treatments applied (in triplicates) were: T1—potassium dihydrogen phosphate (KH2PO4); T2—reactive natural phosphate fertilizer (NRP) and; T3—a mixture 1:1 of KH2PO4 and NRP. After this step, untreated and treated soils were planted with vetiver grass. The extraction procedures and assays applied to contaminated soil before and after the treatments included metal mobility test (TCLP); sequential extraction with BCR method; toxicity assays with Eisenia andrei. The soil-to-plant transfer factors (TF) for Pb and Cd were estimated in all cases. All treatments with phosphates followed by phytoremediation reduced the mobility and availability of Pb and Cd, being KH2PO4 (T1) plus phytoremediation the most effective one. Soil toxicity however, remained high after all treatments. PMID:25386955

  8. Evaluation of mobility, bioavailability and toxicity of Pb and Cd in contaminated soil using TCLP, BCR and earthworms.

    PubMed

    Kede, Maria Luiza F M; Correia, Fabio V; Conceição, Paulo F; Junior, Sidney F Salles; Marques, Marcia; Moreira, Josino C; Pérez, Daniel V

    2014-11-07

    The objective of the present study was to investigate the reduction of mobility, availability and toxicity found in soil contaminated with lead (Pb) and cadmium (Cd) from Santo Amaro Municipality, Bahia, Brazil using two combined methods, commonly tested separately according to the literature: metal mobilization with phosphates and phytoextraction. The strategy applied was the treatment with two sources of phosphates (separately and mixed) followed by phytoremediation with vetiver grass (Vetiveria zizanioides (L.)). The treatments applied (in triplicates) were: T1-potassium dihydrogen phosphate (KH2PO4); T2-reactive natural phosphate fertilizer (NRP) and; T3-a mixture 1:1 of KH2PO4 and NRP. After this step, untreated and treated soils were planted with vetiver grass. The extraction procedures and assays applied to contaminated soil before and after the treatments included metal mobility test (TCLP); sequential extraction with BCR method; toxicity assays with Eisenia andrei. The soil-to-plant transfer factors (TF) for Pb and Cd were estimated in all cases. All treatments with phosphates followed by phytoremediation reduced the mobility and availability of Pb and Cd, being KH2PO4 (T1) plus phytoremediation the most effective one. Soil toxicity however, remained high after all treatments.

  9. Literature Review of the Effects of Tetraphenylborate on Saltstone Grout: Benzene Evolution and TCLP Performance

    SciTech Connect

    HAY, MICHAEL

    2004-11-16

    As part of the program to disposition the tetraphenylborate (TPB) in Tank 48H and return the tank to service, Salt Processing Development requested a review of the literature to assess the state of knowledge pertaining to incorporation of tetraphenylborate slurries in saltstone grout with respect to benzene generation rates and leaching performance. Examination of past studies conducted at Savannah River Site (SRS) on the incorporation of TPB slurries in saltstone provides a basis for developing a more focused scope of experimental studies. Tank 48H currently contains potassium and cesium tetraphenylborate salts as a result of a demonstration of the In Tank Precipitation (ITP) process in 1983 and subsequent ITPradioactive start-up operations in 1995. The tank currently contains approximately 240,000 gallons of salt solution with approximately 19,000 kg of potassium and cesium tetraphenylborate salts. The presence of the TPB salts makes the waste incompatible with existing High Level Waste treatment facilities. The TPB salts in Tank 48H must be treated or removed to meet the scheduled return to service date of 2007. The two preferred options for disposition of the TBP slurries in Tank 48H include: (1) Aggregation of the material with the Defense Waste Processing Facility (DWPF) recycle stream and disposal in the Saltstone Processing Facility (SPF), and (2) In-Situ Thermal Decomposition using heat in combination with pH reduction and catalyst addition. The current literature review along with the current experimental studies provide a basis for determining the feasibility of the option to incorporate the TPB slurries into saltstone grout.

  10. Assessment of metal contamination using X-ray fluorescence spectrometry and the toxicity characteristic leaching procedure (TCLP) during remediation of a waste disposal site in Antarctica.

    PubMed

    Stark, Scott C; Snape, Ian; Graham, Nicholas J; Brennan, John C; Gore, Damian B

    2008-01-01

    The remediation of the Thala Valley landfill, Casey Station, East Antarctica, is part of efforts to clean-up contaminated sites associated with the Australian Antarctic Program. These sites, ranging from abandoned rubbish dumps to fuel spills, are contaminated principally with metals and petroleum hydrocarbons. Remediation success depends on accurate, cost-effective and timely--fit-for-purpose--chemical analysis of soil and water samples from the site, which is required to guide excavation, the in situ or off-site treatment and disposal of contaminated material, and to validate satisfactory remediation. Owing to the remote location of Antarctica, it is necessary to carry out chemical analyses on-site. Waste and soil contaminated with Pb, Zn, Cd, and Cu were excavated from Thala Valley for removal to Australia, treatment and disposal. Analysis of total metal concentrations in soil was performed at Casey Station with a transportable energy dispersive X-ray fluorescence (EDXRF) spectrometer. Soil samples were prepared using a simple size-fractionation method to expedite sample throughput. A method for assessing contaminant mobility in solid waste (toxicity characteristic leaching procedure, TCLP) was also used to characterise soil. Although this was more labour-intensive and time-consuming than the total metals analysis, it was of great utility because leachable metals were often significant determinants in the assessment of contaminated soil. The combined data helped managers during remediation, directing excavation and allowing waste to be classified for treatment and disposal before its return to Australia.

  11. Chemical and physiological metal bioaccessibility assessment in surface bottom sediments from the Deba River urban catchment: Harmonization of PBET, TCLP and BCR sequential extraction methods.

    PubMed

    Unda-Calvo, Jessica; Martínez-Santos, Miren; Ruiz-Romera, Estilita

    2017-04-01

    In the present study, the physiologically based extraction test PBET (gastric and intestinal phases) and two chemical based extraction methods, the toxicity characteristic leaching procedure (TCLP) and the sequential extraction procedure BCR 701 (Community Bureau of Reference of the European Commission) have been used to estimate and evaluate the bioaccessibility of metals (Fe, Mn, Zn, Cu, Ni, Cr and Pb) in sediments from the Deba River urban catchment. The statistical analysis of data and comparison among physiological and chemical methods have highlighted the relevance of simulate the gastrointestinal tract environment since metal bioaccessibility seems to depend on water and sediment properties such as pH, redox potential and organic matter content, and, primordially, on the form in which metals are present in the sediment. Indeed, metals distributed among all fractions (Mn, Ni, Zn) were the most bioaccessible, followed by those predominantly bound to oxidizable fraction (Cu, Cr and Pb), especially near major urban areas. Finally, a toxicological risk assessment was also performed by determining the hazard quotient (HQ), which demonstrated that, although sediments from mid- and downstream sampling points presented the highest metal bioaccessibilities, were not enough to have adverse effects on human health, Cr being the most potentially toxic element. Copyright © 2017 Elsevier Inc. All rights reserved.

  12. Anion leaching from refinery oily sludge and ash from incineration of oily sludge stabilized/solidified with cement. Part I. Experimental results.

    PubMed

    Karamalidis, Athanasios K; Voudrias, Evangelos A

    2008-08-15

    This paper presents the leaching behavior of anions (SO4(2-) and CrO4(2-)) from refinery oily sludge and ash produced by incineration of oily sludge, stabilized/solidified (s/s) with two types of cement, 142.5 and 1142.5. Anion leaching was examined using a 5-step sequential toxicity characteristic leaching procedure (TCLP) test. A single TCLP extraction resulted in limited sulfate release (<50 mg/L) for s/s ash and significant sulfate release (<850 mg/L) for s/s oily sludge. Chromate release was <1 mg/L for s/s ash and nondetectable for s/s oily sludge. The sequential TCLP tests resulted in increased leaching for both sulfate and chromate. In general,the increase of liquid-to-solid ratio (TCLP leachant-to-waste ratio) resulted in increased leaching of sulfate from solidified samples compared to untreated oily sludge, ash and cement. In contrast, chromate leaching decreased by s/s process. A qualitatively similar leaching behavior for SO4(2-), even for radically different wastes such as oily sludge and ash, solidified with two different types of cement was observed.

  13. Results.

    ERIC Educational Resources Information Center

    Zemsky, Robert; Shaman, Susan; Shapiro, Daniel B.

    2001-01-01

    Describes the Collegiate Results Instrument (CRI), which measures a range of collegiate outcomes for alumni 6 years after graduation. The CRI was designed to target alumni from institutions across market segments and assess their values, abilities, work skills, occupations, and pursuit of lifelong learning. (EV)

  14. Results of vitrifying Fernald OU-4 wastes

    SciTech Connect

    Merrill, R.A.; Janke, D.S.

    1993-02-01

    Three silos in Operable Unit 4 (OU-4) at the Feed Materials Production Center in Fernald, Ohio, contain residues from the processing of pitchblende ores. Silos 1 and 2, designated as K-65, contain the depleted ore with a BentoGrout cap over the material to reduce radon emanation, while Silo 3 contains calcined residue from processing solutions. The residues in the three silos contain radium, uranium, uranium daughters, and heavy metals (primarily lead). Vitrification tests were carried out on various mixtures of the above materials and the resulting glasses were analyzed. The vitrified residues all tested ``non-hazardous`` by the Toxicity Characteristic Leachate Procedure (TCLP) and demonstrated a high degree of durability by the Product Consistency Test (PCT). The specific gravity and radon emanation of both the vitrified and non-vitrified residue were measured. Volume reductions ranging from 50 to 68 percent were obtained while the radon emanation rate was reduced by a factor of about 500,000. Radon emanation from the vitrified residue is of the same order of magnitude as emanation from natural building materials such as brick or concrete.

  15. Results of vitrifying Fernald OU-4 wastes

    SciTech Connect

    Merrill, R.A. ); Janke, D.S. )

    1993-02-01

    Three silos in Operable Unit 4 (OU-4) at the Feed Materials Production Center in Fernald, Ohio, contain residues from the processing of pitchblende ores. Silos 1 and 2, designated as K-65, contain the depleted ore with a BentoGrout cap over the material to reduce radon emanation, while Silo 3 contains calcined residue from processing solutions. The residues in the three silos contain radium, uranium, uranium daughters, and heavy metals (primarily lead). Vitrification tests were carried out on various mixtures of the above materials and the resulting glasses were analyzed. The vitrified residues all tested non-hazardous'' by the Toxicity Characteristic Leachate Procedure (TCLP) and demonstrated a high degree of durability by the Product Consistency Test (PCT). The specific gravity and radon emanation of both the vitrified and non-vitrified residue were measured. Volume reductions ranging from 50 to 68 percent were obtained while the radon emanation rate was reduced by a factor of about 500,000. Radon emanation from the vitrified residue is of the same order of magnitude as emanation from natural building materials such as brick or concrete.

  16. Analysis of results from the operation of a pilot plasma gasification/vitrification unit for optimizing its performance.

    PubMed

    Moustakas, K; Xydis, G; Malamis, S; Haralambous, K-J; Loizidou, M

    2008-03-01

    Plasma gasification/vitrification is an innovative and environmentally friendly method of waste treatment. A demonstration plasma gasification/vitrification unit was developed and installed in Viotia region in order to examine the efficiency of this innovative technology in dealing with hazardous waste. The preliminary results from the trial runs of the plasma unit, as well as the study of the influence of certain parameters in the system performance are presented and analyzed in this paper, contributing to the improvement of the operation performance. Finally, data on the final air emissions and the vitrified ash toxicity characteristic leaching procedure (TCLP) results are provided in order to assess the environmental performance of the system. The produced slag was found to be characterized by extremely low leaching properties and can be utilized as construction material, while the values of the polluting parameters of the air emissions were satisfactory.

  17. Correlation between the results of sequential extraction and effectiveness of immobilization treatment of lead- and cadmium-contaminated sediment.

    PubMed

    Dalmacija, Milena B; Prica, Miljana D J; Dalmacija, Bozo D; Roncevic, Srdan D; Rajić, Ljiljana M

    2010-01-08

    The assessment of the quality of sediment from the Great Backi Canal (Serbia), based on the pseudo-total lead (Pb) and cadmium (Cd) content according to the corresponding Dutch standards and Canadian guidelines, showed its severe contamination with these two metals. A microwave-assisted BCR (Community Bureau of Reference of the Commission of the European Union) sequential extraction procedure was employed to assess their potential mobility and risk to the aquatic environment. Comparison of the results of sequential extraction and different criteria for sediment quality assessment has led to somewhat contradictory conclusions. Namely, while the results of sequential extraction showed that Cd comes under the high-risk category, Pb shows low risk to the environment, despite its high pseudo-total content. The contaminated sediment, irrespective of the different speciation of Pb and Cd, was subjected to the same immobilization, stabilization/solidification (S/S) treatments using kaolinite, montmorillonite, kaolinite-quicklime, montmorillonite-quicklime, fly ash, zeolite, or zeolite-fly ash combination. Semi-dynamic leaching tests were conducted for Pb- and Cd-contaminated sediment in order to assess the long-term leaching behavior of these metals. In order to simulate "worst case" leaching conditions, the semi-dynamic leaching test was modified using 0.014 M acetic acid (pH = 3.25) and humic acid solutions (20 mg TOC l-1) as leachants instead of deionized water. The effectiveness of S/S treatment was evaluated by determining diffusion coefficients (De) and leachability indices (LX). The standard toxicity characteristic leaching procedure (TCLP) was applied to evaluate the extraction potential of Pb and Cd. A diffusion-based model was used to elucidate the controlling leaching mechanisms. Generally, the test results indicated that all applied S/S treatments were effective in immobilizing Pb and Cd, and the treated sediments may be considered acceptable for "controlled

  18. ZEUS Results

    SciTech Connect

    Gallo, Elisabetta

    2005-10-06

    Several results from the ZEUS Collaboration were presented at this Workshop. The highlights are presented in this summary, and include results from NLO QCD fits and determination of {alpha}S, from forward jets and diffractive final states, from pentaquarks and searches and from heavy flavour production. Also the first results from the analysis of the HERA II e+p/e-p data are shown.

  19. Late results.

    PubMed

    Daly, B D

    1999-08-01

    Pneumonectomy is performed for a number of benign and malignant conditions. It is most commonly performed for lung cancer. Adjuvant and neoadjuvant protocols have increased the number of these operations being performed and the long-term results are improving. Pneumonectomy may also be performed for metastases to lung and for mesothelioma with encouraging results. Some bronchial adenomas require pneumonectomy. Treatment of resistant mycobacteria or the complications of tuberculosis frequently require pneumonectomy. Late bronchopleural fistulae, esophagopleural fistulae, and empyema may occur.

  20. Research Results

    NASA Astrophysics Data System (ADS)

    2011-12-01

    Research on Global Carbon Emission and Sequestration NSFC Funded Project Made Significant Progress in Quantum Dynamics Functional Human Blood Protein Obtained from Rice How Giant Pandas Thrive on a Bamboo Diet New Evidence of Interpersonal Violence from 129,000 Years Ago Found in China Aptamer-Mediated Efficient Capture and Release of T Lymphocytes on Nanostructured Surfaces BGI Study Results on Resequencing 50 Accessions of Rice Cast New Light on Molecular Breeding BGI Reports Study Results on Frequent Mutation of Genes Encoding UMPP Components in Kidney Cancer Research on Habitat Shift Promoting Species Diversification

  1. Tevatron results

    SciTech Connect

    Lefevre, R.; /Barcelona, Autonoma U.

    2005-01-01

    Recent results obtained by the CDF and D0 experiments at the Tevatron Run II are presented. A first part is dedicated to QCD physics where inclusive jet production, dijet azimuthal decorrelations and jet shapes measurements are reported. Electroweak physics is then discussed relating measurements of the W and Z bosons productions, of the forward-backward charge asymmetry in W production, of the W width and of the top quarks mass. The extensive Run II exploration program is finally approached reporting about searches for neutral supersymmetric Higgs bosons in multijet events and for sbottom quark from gluino decays.

  2. Soil stabilisation using AMD sludge, compost and lignite: TCLP leachability and continuous acid leaching.

    PubMed

    Tsang, Daniel C W; Olds, William E; Weber, Paul A; Yip, Alex C K

    2013-11-01

    Utilising locally available industrial by-products for in situ metal stabilisation presents a low-cost remediation approach for contaminated soil. This study explored the potential use of inorganic (acid mine drainage (AMD) sludge and zero-valent iron) and carbonaceous materials (green waste compost, manure compost, and lignite) for minimising the environmental risks of As and Cu at a timber treatment site. After 9-month soil incubation, significant sequestration of As and Cu in soil solution was accomplished by AMD sludge, on which adsorption and co-precipitation could take place. The efficacy of AMD sludge was comparable to that of zero-valent iron. There was marginal benefit of adding carbonaceous materials. However, in a moderately aggressive environment (Toxicity Characteristic Leaching Procedure), AMD sludge only suppressed the leachability of As but not Cu. Therefore, the provision of compost and lignite augmented the simultaneous reduction of Cu leachability, probably via surface complexation with oxygen-containing functional groups. Under continuous acid leaching in column experiments, combined application of AMD sludge with compost proved more effective than AMD sludge with lignite. This was possibly attributed to the larger amount of dissolved organic matter with aromatic moieties from lignite, which may enhance Cu and As mobility. Nevertheless, care should be taken to mitigate ecological impact associated with short-term substantial Ca release and continuous release of Al at a moderate level under acid leaching. This study also articulated the engineering implications and provided recommendations for field deployment, material processing, and assessment framework to ensure an environmentally sound application of reactive materials. Copyright © 2013 Elsevier Ltd. All rights reserved.

  3. The effect of compositional parameters on the TCLP and PCT durability of environmental glasses

    SciTech Connect

    Resce, J.L.; Overcamp, T.J.; Cicero, C.A.; Bickford, D.F.

    1995-12-01

    The relationship between glass composition and the chemical durability of environmental waste glass is very important for both the development of glass formulations and the prediction of glass durability for process control. The development of such a model is extremely difficult for several reasons. Firstly, chemical durability is dependent upon the type of leach test employed; the leach tests themselves being only crude approximations of actual environmental conditions or long term behavior. Secondly, devitrification or crystallinity can also play a major role in durability, but is much more difficult to quantify. Lastly, the development of any one model for all glass types is impractical because of the wide variety of wastestreams, the heterogeneity of the wastestreams, and the large variety of components within each wastestream. Several ongoing efforts have been directed toward this goal, but as yet, no model has been proven acceptable.

  4. Potential use of pyrite cinders as raw material in cement production: results of industrial scale trial operations.

    PubMed

    Alp, I; Deveci, H; Yazici, E Y; Türk, T; Süngün, Y H

    2009-07-15

    Pyrite cinders, which are the waste products of sulphuric acid manufacturing plants, contain hazardous heavy metals with potential environmental risks for disposal. In this study, the potential use of pyrite cinders (PyCs) as iron source in the production of Portland cement clinker was demonstrated at the industrial scale. The chemical and mineralogical analyses of the PyC sample used in this study have revealed that it is essentially a suitable raw material for use as iron source since it contains >87% Fe(2)O(3) mainly in the form of hematite (Fe(2)O(3)) and magnetite (Fe(3)O(4)). The samples of the clinkers produced from PyC in the industrial scale trial operation of 6 months were tested for the conformity of their chemical composition and the physico-mechanical performance of the resultant cement products. The data were compared with the clinker products of the iron ore, which is used as the raw material for the production Portland cement clinker in the plant. The chemical compositions of all the clinker products of PyC appeared to conform to those of the iron ore clinker, and hence, a Portland cement clinker. The mechanical performance of the mortars prepared from the PyC clinker was found to be consistent with those of the industrial cements e.g. CEM I type cements. It can be inferred from the leachability tests (TCLP and SPLP) that PyC could be a potential source of heavy metal pollution while the mortar samples obtained from the PyC clinkers present no environmental problems. These findings suggest that the waste pyrite cinders can be readily used as iron source for the production of Portland cement. The availability of PyC in large quantities at low cost provides further significant benefits for the management/environmental practices of these wastes and for the reduction of mining and processing costs of cement raw materials.

  5. Microwave melt and offgas analysis results from a Ferro Corporation{reg_sign} glass frit

    SciTech Connect

    Phillips, J.A.; Hoffman, C.R.; Knutson, P.T.

    1995-03-01

    In support of the Residue Treatment Technology (RTT) Microwave Solidification project, Waste Projects and Surface Water personnel conducted a series of experiments to determine the feasibility of encapsulating a surrogate sludge waste using the microwave melter. The surrogate waste was prepared by RTT and melted with five varying compositions of low melting glass frit supplied by the Ferro Corporation. Samples were melted using a 50% waste/50% glass frit and a 47.5% waste/47.5% glass frit/5% carbon powder. This was done to evaluate the effectiveness of carbon at reducing a sulfate-based surface scale which has been observed in previous experiments and in full-scale testing. These vitrified samples were subsequently submitted to Environmental Technology for toxicity characteristic leaching procedure (TCLP) testing. Two of the five frits tested in this experiment merit further evaluation as raw materials for the microwave melter. Ferro frit 3110 with and without carbon powder produced a crystalline product which passed TCLP testing. The quality of the melt product could be improved by increasing the melting temperature from 900{degrees}C to approximately 1150-1200{degrees}C. Ferro frit 3249 produced the optimal quality of glass based on visual observations, but failed TCLP testing for silver when melted without carbon powder. This frit requires a slightly higher melting temperature ({ge} 1200{degrees}C) compared to frit 3110 and produces a superior product. In conjunction with this work, Surface Water personnel conducted offgas analyses using a Thermal Desorption Mass Spectrometer (TDMS) on selected formulations. The offgas analyses identified and quantified water vapor (H{sub 2}O), oxygen (O{sub 2}) and carbon oxides (CO and CO{sub 2}), sulfur (S) and sulfur oxides (SO and SO{sub 2}), and nitrogen (N{sub 2}) and nitrogen oxides (NO and NO{sub 2}) that volatilized during glass formation.

  6. TOXICITY CHARACTERISTIC LEACHING PROCEDURE APPLIED TO RADIOACTIVE SALTSTONE CONTAINING TETRAPHENYLBORATE: DEVELOPMENT OF A MODIFIED ZERO-HEADSPACE EXTRACTOR

    SciTech Connect

    Crapse, K.; Cozzi, A.; Crawford, C.; Jurgensen, A.

    2006-09-30

    In order to assess the effect of extended curing times at elevated temperatures on saltstone containing Tank 48H waste, saltstone samples prepared as a part of a separate study were analyzed for benzene using a modification of the United States Environmental Protection Agency (USEPA) method 1311 Toxicity Characteristic Leaching Procedure (TCLP). To carry out TCLP for volatile organic analytes (VOA), such as benzene, in the Savannah River National Laboratory (SRNL) shielded cells (SC), a modified TCLP Zero-Headspace Extractor (ZHE) was developed. The modified method was demonstrated to be acceptable in a side by side comparison with an EPA recommended ZHE using nonradioactive saltstone containing tetraphenylborate (TPB). TCLP results for all saltstone samples tested containing TPB (both simulant and actual Tank 48H waste) were below the regulatory limit for benzene (0.5 mg/L). In general, higher curing temperatures corresponded to higher concentrations of benzene in TCLP extract. The TCLP performed on the simulant samples cured under the most extreme conditions (3000 mg/L TPB in salt and cured at 95 C for at least 144 days) resulted in benzene values that were greater than half the regulatory limit. Taking into account that benzene in TCLP extract was measured on the same order of magnitude as the regulatory limit, that these experimental conditions may not be representative of actual curing profiles found in the saltstone vault and that there is significant uncertainty associated with the precision of the method, it is recommended that to increase confidence in TCLP results for benzene, the maximum curing temperature of saltstone be less than 95 C. At this time, no further benzene TCLP testing is warranted. Additional verification would be recommended, however, should future processing strategies result in significant changes to salt waste composition in saltstone as factors beyond the scope of this limited study may influence the decomposition of TPB in saltstone.

  7. Cholesterol testing and results

    MedlinePlus

    ... VLDL test results; HDL test results; Coronary risk profile results; Hyperlipidemia-results; Lipid disorder test results ... in your blood. You may also have a lipid (or coronary risk) profile, which includes: Total cholesterol Low density lipoprotein (LDL ...

  8. SUMMARY OF SOLIDIFICATION/STABILIZATION SITE DEMONSTRATIONS AT UNCONTROLLED HAZARDOUS WASTE SITES

    EPA Science Inventory

    Four large-scale solidification/stabilization demonstrations have occurred under EPA's SITE program. In general, physical testing results have been acceptable. Reduction in metal leachability, as determined by the TCLP test, has been observed. Reduction in organic leachability ha...

  9. SUMMARY OF SOLIDIFICATION/STABILIZATION SITE DEMONSTRATIONS AT UNCONTROLLED HAZARDOUS WASTE SITES

    EPA Science Inventory

    Four large-scale solidification/stabilization demonstrations have occurred under EPA's SITE program. In general, physical testing results have been acceptable. Reduction in metal leachability, as determined by the TCLP test, has been observed. Reduction in organic leachability ha...

  10. Your Kidney Test Results

    MedlinePlus

    ... blood vessels healthy. Vitamin D is important for bones and heart health. 1 Your Kidney Test Results Other Important Tests, continued A1C (for patients with diabetes) Results Goal: Your Result: Total Cholesterol Normal: Less ...

  11. Autonomous Soaring Flight Results

    NASA Technical Reports Server (NTRS)

    Allen, Michael J.

    2006-01-01

    A viewgraph presentation on autonomous soaring flight results for Unmanned Aerial Vehicles (UAV)'s is shown. The topics include: 1) Background; 2) Thermal Soaring Flight Results; 3) Autonomous Dolphin Soaring; and 4) Future Plans.

  12. Recent results from CDF

    SciTech Connect

    Sally Carol Seidel

    2001-07-16

    During the past year, the CDF Experiment has reported on a variety of results concerning QCD and electroweak studies, studies of the top quark, and searches for new phenomena. A sample of these results is presented here.

  13. Recent results from TRISTAN

    SciTech Connect

    Enomoto, Ryoji

    1997-01-01

    TRISTAN results on {gamma}{gamma} physics from 1994 to 1995 are reviewed in this report. We have systematically investigated jet production, the {gamma}-structure function, and charm pair production in {gamma}{gamma} processes. The results are discussed, and future prospects are presented.

  14. Diffraction Results from CDF

    SciTech Connect

    Goulianos, Konstantin

    2012-04-01

    We present final results by the CDF II collaboration on diffractive W and Z production, report on the status of ongoing analyses on diffractive dijet production and on rapidity gaps between jets, and briefly summarize results obtained on exclusive production pointing to their relevance to calibrating theoretical models used to predict exclusive Higgs-boson production at the LHC.

  15. Getting Districtwide Results

    ERIC Educational Resources Information Center

    McBeath, Angus

    2006-01-01

    This monograph is based on a keynote presentation by Angus McBeath at the "Getting Districtwide Results" Conference in Long Beach, California, which was co-sponsored by the Cross City Campaign for Urban School Reform and Focus on Results. The author, a former superintendent of the Edmonton Public Schools, how his school district was…

  16. Unfavourable results in hypospadias

    PubMed Central

    Agrawal, Karoon; Misra, Anshumali

    2013-01-01

    Hypospadias urethroplasty is considered difficult as the complications and unfavourable results are not uncommon. At the turn of the century, due to a better understanding of applied anatomy of hypospadias, new techniques were developed which significantly brought down the complication rate. However unfavourable results are still disturbing. An algorithm for selection of surgery has been presented. Forty three secondary surgeries were performed over 3 years for correction of unfavourable results. The urethrocutaneous fistula was the most common (21%) followed by meatal stenosis (14%) and narrow neourethra (14%). Common unfavourable results have been discussed. On the basis of experience with a large number of hypospadias urethroplasty ‘tips to avoid or minimise unfavourable results’ have been presented. However, one should assess the final outcome of urethroplasty using hypospadias objective scoring evaluation. PMID:24501477

  17. A-3 scientific results

    NASA Technical Reports Server (NTRS)

    Doxsey, R.

    1979-01-01

    The scanning modulation collimator experiment designed to identify the optical counterparts of celestial X-ray sources is described. Identification of galactic sources is discussed. Results concerning active galaxies are presented.

  18. CMAQ Community Survey Results

    EPA Pesticide Factsheets

    In 2016, CMAQ users worldwide participated in a survey circulated by the University of North Carolina's Community Modeling and Analysis System (CMAS) center. The aggregated results allow us to better understand the attributes of the CMAQ user community.

  19. Electroweak results from CDF

    SciTech Connect

    D. S. Waters

    2004-06-02

    Inclusive W and Z production cross-sections have been measured by CDF and certain electroweak parameters extracted with high precision from these measurements. New results on diboson production at the Tevatron are also presented.

  20. Tevatron direct photon results.

    SciTech Connect

    Kuhlmann, S.

    1999-09-21

    Tevatron direct photon results since DIS98 are reviewed. Two new CDF measurements are discussed, the Run Ib inclusive photon cross section and the photon + Muon cross section. Comparisons with the latest NLO QCD calculations are presented.

  1. Results from MAC

    SciTech Connect

    Chadwick, G.B.

    1983-05-01

    The MAC detector has been exposed at PEP to 40 pb/sup -1/ luminosity of e/sup +/e/sup -/ collisions. The detector is described and recent results of a continuing analysis of hadronic cross section, lepton pair charge asymmetry, Bhabha process, two photon final state and radiative ..mu.. pairs are given. New results on flavor tagging of hadronic events with an inclusive ..mu.., and some searches for new particles are presented.

  2. Unfavorable results in replantation.

    PubMed

    Thomas, Abraham G

    2013-05-01

    Reattachment of amputated parts of the body (Replantation) has become a reality since the first arm replant was carried out six decades ago. Failures were not uncommon in the beginning, leading on to the analysis of the problem and refinements in technique. Improvements in sutures, instrumentation and better microscopes further helped the surgeons to do replantation with better finesse and functional results. Evaluation of results and particularly failure and long term results help the younger surgeons to learn from the difficulties faced earlier to do better in the future. An attempt is made to list various aspects of replantation experienced by the author during the past 30 years, particularly in reference to unfavorable results, which had been occasionally total failure, or a partial failure, with poor function and cosmesis due to infection. An insensate limb with poor function is the result of inadequate or improper nerve coaptation or infection destroying the whole repair. It is apt to mention that infection is mostly the result of poor vascularity due to devitalized tissue. Difficulties arise often in identifying the viable tissue, particularly while debriding in the distal amputated part since there is no bleeding. Experience counts in this, specifically to identify the viable muscle. The factors that may lead to complications are listed with remarks to avoid them.

  3. Recent results from CDF

    SciTech Connect

    Takikawa, K.; CDF

    1998-02-15

    We first present recent CDF results on the top quark, covering the measurement of the t{anti t} production cross section and the top quark mass, the observation of hadronic W decays in top events, the measurement of V{sub tb}, the search for flavor changing neutral current decays, and kinematical properties of t{anti t} production. Then we present one topic from CDF exotic physics results, i.e., the search for first-generation leptoquarks, and one topic from CDF B physics results, i.e., the measurement of time-dependent B{sup 0}-{anti B}{sup 0} mixing. Finally we conclude by briefly mentioning the prospects for Run II.

  4. Recent results from PEP

    SciTech Connect

    Hollebeek, R.

    1981-10-01

    Preliminary results are presented for the data taken by the MARK II and MAC collaborations at the PEP storage ring. Results include measurements of QED processes, limits on the weak couplings g/sub V/ and g/sub A/, limits on anomalous lepton production, the measurement of the tau lifetime, scale violation in inclusive hadron production, Monte Carlo independent tests of QCD using energy-energy correlations and single jet energy moments, measurements of the properties of three jet events, and measurements of proton, neutral kaon, lambda and proton pair yields.

  5. Sharing Research Results

    ERIC Educational Resources Information Center

    Ashbrook, Peggy

    2011-01-01

    There are many ways to share a collection of data and students' thinking about that data. Explaining the results of science inquiry is important--working scientists and amateurs both contribute information to the body of scientific knowledge. Students can collect data about an activity that is already happening in a classroom (e.g., the qualities…

  6. Recent CDF results

    SciTech Connect

    Gomez, Gervasio; /Cantabria Inst. of Phys.

    2007-11-01

    As of November of 2007, the CDF detector has recorded approximately 2.7 fb{sup -1} of data. This contribution describes some of the most recent and most relevant results from the CDF collaboration in all areas of its wide physics program, as well as some insights into the Tevatron reach for Higgs searches within the next few years.

  7. Implementation Challenges and Results

    ERIC Educational Resources Information Center

    Walters, Kirk; Sorensen, Nicholas

    2013-01-01

    This paper describes the implementation of the online and f2f summer algebra courses that were delivered in summers 2011 and 2012. These data will be used to frame the impact results presented in an earlier paper. In particular, the paper will provide a detailed picture of how the online course was structured and the types of supports provided to…

  8. Sharing Research Results

    ERIC Educational Resources Information Center

    Ashbrook, Peggy

    2011-01-01

    There are many ways to share a collection of data and students' thinking about that data. Explaining the results of science inquiry is important--working scientists and amateurs both contribute information to the body of scientific knowledge. Students can collect data about an activity that is already happening in a classroom (e.g., the qualities…

  9. Results Are the Reason.

    ERIC Educational Resources Information Center

    Sparks, Dennis

    2000-01-01

    Author Mike Schmoker argues that data should play a crucial role before staff development begins by helping to select the most results-oriented initiatives. Staff development proposals should be based on data that indicate the initiatives have led to higher achievement. This interview discusses barriers to using data and notes the role of…

  10. CPT Results from Ktev

    NASA Astrophysics Data System (ADS)

    Nguyen, Hogan

    2002-02-01

    We present several preliminary measurements from KTeV of the fundamental neutral K parameters, and their implications for CPT violation. A new limit is given on the sidereal time dependence of φ+-. The results are based on data collected in 1996-97.

  11. Results from ARGUS

    NASA Astrophysics Data System (ADS)

    Darden, C.

    1984-10-01

    The ARGUS collaboration reports results bearing on the fragmentation function for D*± mesons, the mass of the F± meson, the decays F±→φπ± and F±→φπ+π-π±, the decay γ'→π+π-γ and the radiative decay γ'→γΥ(3Pj).

  12. Reporting Research Results Effectively

    ERIC Educational Resources Information Center

    Volkwein, J. Fredericks

    2010-01-01

    Assessment research is at its best when it packages research results and data so that they can be digested by multiple audiences. Too many assessment researchers spend all their efforts planning and executing the research project with little attention to closing the loop at the end. If assessment findings are not communicated effectively, the…

  13. Recent results from MAC

    SciTech Connect

    MAC Collaboration

    1982-05-01

    Some preliminary results from the MAC detector at PEP are presented. These include measurements of the angular distribution of ..gamma gamma.., ..mu mu.. and tau tau final states, a determination of the tau lifetime, a measurement of R, and a presentation of the inclusive muon p/sub perpendicular/ distribution for hadronic events.

  14. Reporting Research Results Effectively

    ERIC Educational Resources Information Center

    Volkwein, J. Fredericks

    2010-01-01

    Assessment research is at its best when it packages research results and data so that they can be digested by multiple audiences. Too many assessment researchers spend all their efforts planning and executing the research project with little attention to closing the loop at the end. If assessment findings are not communicated effectively, the…

  15. Communicating research results

    Treesearch

    Jan Fryk

    1999-01-01

    A research finding is of little value until it is known and applied. Hence) communication of results should be regarded as a natural, integrated part of research) and thus addressed in the research plans from the very beginning. A clearly defined information strategy and operational goals for information activities are needed for successful communication. For maximum...

  16. QCD results from CDF

    SciTech Connect

    Plunkett, R.; The CDF Collaboration

    1991-10-01

    Results are presented for hadronic jet and direct photon production at {radical}{bar s} = 1800 GeV. The data are compared with next-to-leading QCD calculations. A new limit on the scale of possible composite structure of the quarks is also reported. 12 refs., 4 figs.

  17. 2008 Election Results

    NASA Astrophysics Data System (ADS)

    McDonough, William; Bamzai, Anjuli; Robinson, Robert

    2008-02-01

    Voting by the membership for Union and Section officers for the 2008-2010 term was completed on 10 January 2008. Voting was conducted electronically through an Internet Web site using commercial surveying software. Paper ballots were available upon request. The tallying and recording of the election was managed by AGU staff using Vovici software. The results of the election are given below.

  18. 2006 Election Results

    NASA Astrophysics Data System (ADS)

    Staudt, Amanda C.; Given, Holly K.; McDonough, William F.

    2006-02-01

    The voting by the membership for Union and Section officers for the 2006-2008 term was completed on 10 January. Voting was conducted electronically through the Internet using commercial surveying software. Paper ballots were available upon request. The tallying and recording of the elections was managed by AGU staff using the Web-Surveyor software. The results of the voting are listed below.

  19. [The applicability of results].

    PubMed

    Marín-León, I

    2015-11-01

    The ultimate aim of the critical reading of medical literature is to use the scientific advances in clinical practice or for innovation. This requires an evaluation of the applicability of the results of the studies that have been published, which begins with a clear understanding of these results. When the studies do not provide sufficient guarantees of rigor in design and analysis, the conditions necessary for the applicability of the results are not met; however, the fact that the results are reliable is not enough to make it worth trying to use their conclusions. This article explains how carrying out studies in experimental or artificial conditions often moves them away from the real conditions in which they claim to apply their conclusions. To evaluate this applicability, the article proposes evaluating a set of items that will enable the reader to determine the likelihood that the benefits and risks reported in the studies will yield the least uncertainty in the clinical arena where they aim to be applied.

  20. Continuous ACL graft, results

    PubMed Central

    Díaz, Jorge Luis; Vega, Marcelo; Matesevach, Ivan

    2017-01-01

    Objectives: describe our technique using hamstring graft that respects the proximal continuity of Semitendinosus and uses the superior biological potential of the distal periosteum., preserving and stressing the ST reinforce the retropulsión and dynamic control of external rotation of the knee. Here the technique, results, difficulties and foundations. Methods: The sample of this research was composed of 229 cases operated between 01/03/97 and 01/03/13 in Arthroscopy Private Center., 166 male and 63 female, the postop follow-up was 86 months. Evaluated with IKDC, Lysholm, Hamstring EMG. Comparative histology study in rabbits. Results: IKDC and Lysholm score showed 93% of very good results. Conclusion: Dynamic ACL reconstruction achieves a static-dynamic stabilization of the knee. Grafts have a plus in their biological potential (proximal continuity - osteo-periosteal insertion of the tendons in the femoral tunnel). The hamstring maintains its functionality (EMG). 93% satisfactory results (IKDC, Lysholm). It is a valid surgical option in ACL injuries.

  1. Early results from ISO

    NASA Astrophysics Data System (ADS)

    1996-01-01

    First findings by Europe's new space telescope ISO (Infrared Space Observatory) will be announced at a press conference to be held at ESA's satellite tracking station in Villafranca, Apartado 50727 - 28080-Madrid, on Wednesday 14 February 1996 Astronomers responsible for ISO's instruments will show results ranging from materials in the planet Saturn, through the birth and death of stars, to the behaviour of colliding galaxies. All instruments are working well and even their preliminary results confirm that ISO is a unique observatory making an unprecedented exploration of the universe by infrared rays. Parallel press conferences will be held at ESA Headquarters in Paris, ESTEC Noordwijk (the Netherlands) and ESOC Darmstadt (Germany) where a live television link will be established with Villafranca and from where the media can participate in the discussion.

  2. Dosimetric results on EURECA

    SciTech Connect

    Reitz, G.

    1995-02-01

    Detector packages were exposed on the European Retrievable Carrier (EURECA) as part of the Biostack experiment inside the Exobiology and Radiation Assembly (ERA) and at several locations around EURECA. The packages consist of different plastic nuclear track detectors, nuclear emulsions and thermoluminescence dosimeters (TLD`s). Evaluation of these detectors yields data on absorbed dose and particle and LET spectra. Preliminary results of absorbed dose measurements in the EURECA dosimeter packages are reported and compared to results of the LDEF experiments. The highest dose rate measured on EURECA is 63.3 plus or minus 0.4 mGy d(exp -1) behind a shielding thickness of 0.09 g cm(exp -2) in front of the detector package.

  3. Results from SAGE II

    SciTech Connect

    Nico, J.S.

    1994-10-01

    The Russian-American Gallium solar neutrino Experiment (SAGE) began the second phase of operation (SAGE II) in September of 1992. Monthly measurements of the integral flux of solar neutrinos have been made with 55 tonnes of gallium. The K-peak results of the first nine runs of SAGE II give a capture rate of 66{sub -13}{sup +18} (stat) {sub -7}{sup +5} (sys) SNU. Combined with the SAGE I result of 73{sub -16}{sup +18} (stat) {sub -7}{sup 5} (sys) SNU, the capture rate is 69{sub -11}{sup +11} (stat) {sub -7}{sup +5} (sys) SNU. This represents only 52%--56% of the capture rate predicted by different Standard Solar Models.

  4. Cleanroom energy benchmarking results

    SciTech Connect

    Tschudi, William; Xu, Tengfang

    2001-09-01

    A utility market transformation project studied energy use and identified energy efficiency opportunities in cleanroom HVAC design and operation for fourteen cleanrooms. This paper presents the results of this work and relevant observations. Cleanroom owners and operators know that cleanrooms are energy intensive but have little information to compare their cleanroom's performance over time, or to others. Direct comparison of energy performance by traditional means, such as watts/ft{sup 2}, is not a good indicator with the wide range of industrial processes and cleanliness levels occurring in cleanrooms. In this project, metrics allow direct comparison of the efficiency of HVAC systems and components. Energy and flow measurements were taken to determine actual HVAC system energy efficiency. The results confirm a wide variation in operating efficiency and they identify other non-energy operating problems. Improvement opportunities were identified at each of the benchmarked facilities. Analysis of the best performing systems and components is summarized, as are areas for additional investigation.

  5. Recent results from MAMI

    SciTech Connect

    Arends, Hans-Juergen

    2011-10-24

    The Mainz Microtron MAMI is an ideal facility to study the hadron structure with the electromagnetic probe. With the new accelerator stage (HDSM), which went into operation in 2007, high-intensity polarized electron and photon beams with energies up to 1.6 GeV are delivered to the experiments. Polarized targets and recoil polarimeters in combination with dedicated detectors are available for precision experiments in hadron physics. In this article, an overview over selected recent results is given.

  6. Results from SAGE

    SciTech Connect

    Abdurashitov, J.N.; Gavrin, V.N.; Girin, S.V.

    1996-04-01

    The Russian-American Gallium Solar Neutrino Experiment (SAGE) is described. Beginning in September 1992, SAGE II data were taken with 55 tons of Ga and with significantly reduced backgrounds. The solar neutrino flux measured by 31 extractions through October 1993 is presented. The result of 69 {+-} 10 +5/{minus}7 SNU is to be compared with a Standard Solar Model prediction of 132 SNU.

  7. Titan - Some new results

    NASA Astrophysics Data System (ADS)

    Owen, T.; Gautier, D.

    New analyses of Voyager spectra of Titan have led to improvements in the determination of abundances of minor constituents as a function of latitude and altitude. Ground-based microwave observations have extended the Voyager results for HCN, and have demonstrated that CO is mysteriously deficient in the stratosphere. The origin of the CH4, CO, and N2 in Titan's atmosphere is still unresolved. Both primordial and evolutionary sources are compatible with the available evidence.

  8. ICAAS piloted simulation results

    NASA Astrophysics Data System (ADS)

    Landy, R. J.; Halski, P. J.; Meyer, R. P.

    1994-05-01

    This paper reports piloted simulation results from the Integrated Control and Avionics for Air Superiority (ICAAS) piloted simulation evaluations. The program was to develop, integrate, and demonstrate critical technologies which will enable United States Air Force tactical fighter 'blue' aircraft to achieve superiority and survive when outnumbered by as much as four to one by enemy aircraft during air combat engagements. Primary emphasis was placed on beyond visual range (BVR) combat with provisions for effective transition to close-in combat. The ICAAS system was developed and tested in two stages. The first stage, called low risk ICAAS, was defined as employing aircraft and avionics technology with an initial operational date no later than 1995. The second stage, called medium risk ICAAS, was defined as employing aircraft and avionics technology with an initial operational date no later than 1998. Descriptions of the low risk and medium risk simulation configurations are given. Normalized (unclassified) results from both the low risk and medium risk ICAAS simulations are discussed. The results show the ICAAS system provided a significant improvement in air combat performance when compared to a current weapon system. Data are presented for both current generation and advanced fighter aircraft. The ICAAS technologies which are ready for flight testing in order to transition to the fighter fleet are described along with technologies needing additional development.

  9. The Viking biology results

    NASA Technical Reports Server (NTRS)

    Klein, Harold P.

    1989-01-01

    A brief review of the purposes and the results from the Viking Biology experiments is presented, in the expectation that the lessons learned from this mission will be useful in planning future approaches to the biological exploration of Mars. Since so little was then known about potential micro-environments on Mars, three different experiments were included in the Viking mission, each one based on different assumptions about what Martian organisms might be like. In addition to the Viking Biology Instrument (VBI), important corollary information was obtained from the Viking lander imaging system and from the molecular analysis experiments that were conducted using the gas chromatograph-mass spectrometer (GCMS) instrument. No biological objects were noted by the lander imaging instrument. The GCMS did not detect any organic compounds. A description of the tests conducted by the Gas Exchange Experiment, the Labeled Release experiment, and the Pyrolytic Release experiment is given. Results are discussed. Taken as a whole, the Viking data yielded no unequivocal evidence for a Martian biota at either landing site. The results also revealed the presence of one or more reactive oxidants in the surface material and these need to be further characterized, as does the range of micro-environments, before embarking upon future searches for extant life on Mars.

  10. GIRAFFE test results summary

    SciTech Connect

    Yokobori, S.; Arai, K.; Oikawa, H.

    1996-03-01

    A passive system can provide engineered safety features enhancing safety system reliability and plant simplicity. Toshiba has conducted the test Program to demonstrate the feasibility of the SBWR passive safety system using a full-height, integral system test facility GIRAFFE. The test facility GIRAFFE models the SBWR in full height to correctly present the gravity driving head forces with a 1/400 volume scale. The GIRAFFE test Program includes the certification tests of the passive containment cooling system (PCCS) to remove the post-accident decay heat and the gravity driven cooling system (GDCS) to replenish the reactor coolant inventory during a LOCA. The test results have confirmed the PCCS and GDCS design and in addition, have demonstrated the operation of the pCCS with the presence of a lighter-than-steam noncondensable as well as with the presence of a heavier-than-steam, noncondensable. The GIRAFFE test Program has also provided the database to qualify a best estimate thermal-hydraulic computer code TRAC. The post test analysis results have shown that TRAC can accurately predict the PCCS heat removal Performance and the containment pressure response to a LOCA. This paper summarizes the GIRAFFE test results to investigate post-LOCA PCCS heat removal performance and post-test analysis using TRAC.

  11. Explaining embodied cognition results.

    PubMed

    Lakoff, George

    2012-10-01

    From the late 1950s until 1975, cognition was understood mainly as disembodied symbol manipulation in cognitive psychology, linguistics, artificial intelligence, and the nascent field of Cognitive Science. The idea of embodied cognition entered the field of Cognitive Linguistics at its beginning in 1975. Since then, cognitive linguists, working with neuroscientists, computer scientists, and experimental psychologists, have been developing a neural theory of thought and language (NTTL). Central to NTTL are the following ideas: (a) we think with our brains, that is, thought is physical and is carried out by functional neural circuitry; (b) what makes thought meaningful are the ways those neural circuits are connected to the body and characterize embodied experience; (c) so-called abstract ideas are embodied in this way as well, as is language. Experimental results in embodied cognition are seen not only as confirming NTTL but also explained via NTTL, mostly via the neural theory of conceptual metaphor. Left behind more than three decades ago is the old idea that cognition uses the abstract manipulation of disembodied symbols that are meaningless in themselves but that somehow constitute internal "representations of external reality" without serious mediation by the body and brain. This article uniquely explains the connections between embodied cognition results since that time and results from cognitive linguistics, experimental psychology, computational modeling, and neuroscience.

  12. Certification of computational results

    NASA Technical Reports Server (NTRS)

    Sullivan, Gregory F.; Wilson, Dwight S.; Masson, Gerald M.

    1993-01-01

    A conceptually novel and powerful technique to achieve fault detection and fault tolerance in hardware and software systems is described. When used for software fault detection, this new technique uses time and software redundancy and can be outlined as follows. In the initial phase, a program is run to solve a problem and store the result. In addition, this program leaves behind a trail of data called a certification trail. In the second phase, another program is run which solves the original problem again. This program, however, has access to the certification trail left by the first program. Because of the availability of the certification trail, the second phase can be performed by a less complex program and can execute more quickly. In the final phase, the two results are compared and if they agree the results are accepted as correct; otherwise an error is indicated. An essential aspect of this approach is that the second program must always generate either an error indication or a correct output even when the certification trail it receives from the first program is incorrect. The certification trail approach to fault tolerance is formalized and realizations of it are illustrated by considering algorithms for the following problems: convex hull, sorting, and shortest path. Cases in which the second phase can be run concurrently with the first and act as a monitor are discussed. The certification trail approach are compared to other approaches to fault tolerance.

  13. Pressure locking test results

    SciTech Connect

    DeWall, K.G.; Watkins, J.C.; McKellar, M.G.; Bramwell, D.

    1996-12-01

    The U.S. Nuclear Regulatory Commission (NRC), Office of Nuclear Regulatory Research, is funding the Idaho National Engineering Laboratory (INEL) in performing research to provide technical input for their use in evaluating responses to Generic Letter 95-07, {open_quotes}Pressure Locking and Thermal Binding of Safety-Related Power-Operated Gate Valves.{close_quotes} Pressure locking and thermal binding are phenomena that make a closed gate valve difficult to open. This paper discusses only the pressure locking phenomenon in a flexible-wedge gate valve; the authors will publish the results of their thermal binding research at a later date. Pressure locking can occur when operating sequences or temperature changes cause the pressure of the fluid in the bonnet (and, in most valves, between the discs) to be higher than the pressure on the upstream and downstream sides of the disc assembly. This high fluid pressure presses the discs against both seats, making the disc assembly harder to unseat than anticipated by the typical design calculations, which generally consider friction at only one of the two disc/seat interfaces. The high pressure of the bonnet fluid also changes the pressure distribution around the disc in a way that can further contribute to the unseating load. If the combined loads associated with pressure locking are very high, the actuator might not have the capacity to open the valve. The results of the NRC/INEL research discussed in this paper show that the relationship between bonnet pressure and pressure locking stem loads appears linear. The results also show that for this valve, seat leakage affects the bonnet pressurization rate when the valve is subjected to thermally induced pressure locking conditions.

  14. Recent BABAR Results

    SciTech Connect

    Eigen, Gerald

    2015-04-29

    We present herein the most recent BABAR results on direct CP asymmetry measurements in B → Xsγ, on partial branching fraction and CP asymmetry measurements in B → Xs+-, on a search for B → π/ηℓ+- decays, on a search for lepton number violation in B+ → X-+ℓ'+ modes and a study of B0 →ωω and B0 → ωφ decays.

  15. SPEAR results, 1981

    SciTech Connect

    Scharre, D.L.

    1981-09-01

    New results from SPEAR on the inclusive photon spectrum at the psi' and on J/psi radiative transitions are presented. Evidence for an eta/sub c/' candidate is observed in the psi' inclusive photon spectrum at a mass M = 3592 +- 5 MeV. A new resonance, the theta(1640) which is observed to decay into eta eta, has been seen in radiative transitions from the J/psi. The spin-parity of the l(1440), previously observed in J/psi radiative transitions and originally identified as the E(1420), has been determined to be 0/sup -/.

  16. Planck 2015 Cosmological results

    NASA Astrophysics Data System (ADS)

    Tristram, Matthieu

    2015-08-01

    On behalf of the Planck collaboration, I will present the cosmological results from the 2015 release. The new release now include polarization data from both the LFI and the HFI.I will focus on the impact of the polarization on both the standard LCDM model and its basic extensions. I will compare these constraints with other cosmological probes such as BAO, gravitational lensing and redshift space distortions.LCDM is still a very good fit of the Planck CMB data. The scalar fluctuations are consistent with adiabatic modes.

  17. Results of railgun experiments

    SciTech Connect

    Hawke, R.S.; Brooks, A.L.; Fowler, C.M.; Peterson, D.R.

    1983-04-01

    During the 1979 Megagauss II conference the hypervelocity potential of railguns and the pulsed power technology needed to power them were discussed. Since then, many laboratories have initiated railgun R and D projects for a variety of potential applications. Los Alamos and Lawrence Livermore National Laboratories initiated a collaborative experimental railgun project which resulted in several successes in accelerating projectiles to high velocities, emphasized the limits on railgun operation, and indicated that the numerical modeling of railgun operation was in good agreement with the experiments.

  18. Recent Results from WMAP

    NASA Technical Reports Server (NTRS)

    Wollack, Edward

    2003-01-01

    The early Universe was incredibly hot, dense, and homogeneous. A powerful probe of this time is provided by the relic radiation which we refer to today as the Cosmic Microwave Background (CMB). Images produced from this light contain the earliest glimpse of the Universe after the Big Bang and the signature of the evolution of its contents. By exploiting these clues, precise constraints on the age, mass density, and geometry of the early Universe can be derived. Recent results from NASA's Wilkinson Microwave Anisotropy Probe (WMAP) will be presented.

  19. Preliminary results of DISTO

    NASA Astrophysics Data System (ADS)

    Bedfer, Y.

    1998-05-01

    DISTO is a spectrometer experiment installed at Saturne in Saclay to study strangeness production in p¯p reactions. It has entered its production phase in the second semester of 1996 and is to complete it by the time Saturne closes at the end of 1997. Preliminary results bearing on the two main items of its physics program. viz. polarization in associated hyperon production and OZ1 rule assessment in vector meson production, and obtained at 2.85 GeV are presented.

  20. Tevatron Higgs Results

    SciTech Connect

    Dominguez, Aaron

    2009-12-17

    We present the latest results of searches for the production of Higgs bosons at the Tevatron collider in the D0 and CDF experiments. Cross section times branching ratios have been measured in many different topologies and have been interpreted in both the standard model and other models. No evidence for the production of Higgs bosons has been observed, but limits have been set. The D0 and CDF searches in the standard model have been combined and for the first time we exclude part of the possible mass range, 160 GeV to 170 GeV at the 95% confidence level.

  1. Recent Results from Borexino

    NASA Astrophysics Data System (ADS)

    Jeschke, D.; Agostini, M.; Altenmüller, K.; Appel, S.; Atroshchenko, V.; Bellini, G.; Benziger, J.; Bick, D.; Bonfini, G.; Bravo, D.; Caccianiga, B.; Calaprice, F.; Caminata, A.; Carlini, M.; Cavalcante, P.; Chepurnov, A.; Choi, K.; D'Angelo, D.; Davini, S.; Derbin, A.; Di Noto, L.; Drachnev, I.; Etenko, A.; Fomenko, K.; Franco, D.; Gabriele, F.; Galbiati, C.; Ghiano, C.; Giammarchi, M.; Goeger-Neff, M.; Goretti, A.; Gromov, M.; Hagner, C.; Hungerford, E.; Ianni, Aldo; Ianni, Andrea; Jany, A.; Jedrzejczak, K.; Jeschke, D.; Kobychev, V.; Korablev, D.; Korga, G.; Kryn, D.; Laubenstein, M.; Lehnert, B.; Litvinovich, E.; Lombardi, F.; Lombardi, P.; Ludhova, L.; Lukyanchenko, G.; Machulin, I.; Manecki, S.; Maneschg, W.; Manuzio, G.; Marcocci, S.; Meroni, E.; Meyer, M.; Miramonti, L.; Misiaszek, M.; Montuschi, M.; Mosteiro, P.; Muratova, V.; Neumair, B.; Oberauer, L.; Obolensky, M.; Ortica, F.; Pallavicini, M.; Papp, L.; Pocar, A.; Ranucci, G.; Razeto, A.; Re, A.; Romani, A.; Roncin, R.; Rossi, N.; Schönert, S.; Semenov, D.; Skorokhvatov, M.; Smirnov, O.; Sotnikov, A.; Sukhotin, S.; Suvorov, Y.; Tartaglia, R.; Testera, G.; Thurn, J.; Toropova, M.; Unzhakov, E.; Vishneva, A.; Vogelaar, R. B.; von Feilitzsch, F.; Wang, H.; Weinz, S.; Winter, J.; Wojcik, M.; Wurm, M.; Yokley, Z.; Zaimidoroga, O.; Zavatarelli, S.; Zuber, K.; Zuzel, G.

    2017-01-01

    The Borexino experiment is taking data since 2007 at the Laboratori Nazionali del Gran Sasso in Italy accomplishing outstanding achievements in the field of neutrino physics. Its success is strongly based on the unprecedented ultra-high radio-purity of the inner scintillator core. The main features of the detector and the impressive results for solar and geo-neutrinos obtained by Borexino so far are summarized. The main focus is laid on the most recent results, i.e. the first real-time measurement of the solar pp neutrino flux and the detection of the signal induced by geo-neutrinos with a significance as high as 5.9σ. The measurement of the pp neutrino flux represents a direct probe of the major mechanism of energy production in the Sun and its observation at a significance of 10σ proves the stability of the Sun over a time of at least 105 years. It further puts Borexino in the unique position of being capable to test the MSW-LMA paradigm across the whole solar energy range. The geo-neutrino data allow to infer information concerning important geophysical properties of the Earth that are also discussed. The perspectives of the final stage of the Borexino solar neutrino program that are centered on the goal of measuring the CNO neutrinos that so far escaped any observation are outlined.

  2. Spacelab Science Results Study

    NASA Technical Reports Server (NTRS)

    Naumann, R. J.; Lundquist, C. A.; Tandberg-Hanssen, E.; Horwitz, J. L.; Germany, G. A.; Cruise, J. F.; Lewis, M. L.; Murphy, K. L.

    2009-01-01

    Beginning with OSTA-1 in November 1981 and ending with Neurolab in March 1998, a total of 36 Shuttle missions carried various Spacelab components such as the Spacelab module, pallet, instrument pointing system, or mission peculiar experiment support structure. The experiments carried out during these flights included astrophysics, solar physics, plasma physics, atmospheric science, Earth observations, and a wide range of microgravity experiments in life sciences, biotechnology, materials science, and fluid physics which includes combustion and critical point phenomena. In all, some 764 experiments were conducted by investigators from the U.S., Europe, and Japan. The purpose of this Spacelab Science Results Study is to document the contributions made in each of the major research areas by giving a brief synopsis of the more significant experiments and an extensive list of the publications that were produced. We have also endeavored to show how these results impacted the existing body of knowledge, where they have spawned new fields, and if appropriate, where the knowledge they produced has been applied.

  3. First results from CARIBU

    NASA Astrophysics Data System (ADS)

    Savard, Guy

    2011-10-01

    The Californium Rare Ion Breeder Upgrade (CARIBU) of the ATLAS superconducting linac facility aims at providing low energy and reaccelerated neutron-rich radioactive beams to address key nuclear physics, astrophysics and application issues. These beams are obtained from fission fragments of a 1 Ci 252Cf source, thermalized and collected into a low-energy particle beam by a helium gas catcher, mass analyzed by an isobar separator, and charge breed to higher charge states for acceleration in ATLAS. The method described is fast and universal and short-lived isotope yield scale essentially with Californium fission yields. The facility is now commissioned and operating with a 100 mCi source which has yielded extracted low-energy mass separated radioactive beams at intensities in excess of 100000 ions per second. Radioactive beams have been charge bred with an efficiency of up to 12% and reaccelerated to 6 MeV/u. Commissioning results, together with the results from first astrophysics experiments at CARIBU using the beams from the 100 mCi source will be presented. The final 1 Ci source is currently under fabrication and is expected to be installed by the end of the year. This work was supported by the US DOE, Office of Nuclear Physics, under contract DE-AC02-06CH11357.

  4. Early physics results.

    PubMed

    Jenni, Peter

    2012-02-28

    For the past year, experiments at the Large Hadron Collider (LHC) have started exploring physics at the high-energy frontier. Thanks to the superb turn-on of the LHC, a rich harvest of initial physics results have already been obtained by the two general-purpose experiments A Toroidal LHC Apparatus (ATLAS) and the Compact Muon Solenoid (CMS), which are the subject of this report. The initial data have allowed a test, at the highest collision energies ever reached in a laboratory, of the Standard Model (SM) of elementary particles, and to make early searches Beyond the Standard Model (BSM). Significant results have already been obtained in the search for the Higgs boson, which would establish the postulated electro-weak symmetry breaking mechanism in the SM, as well as for BSM physics such as Supersymmetry (SUSY), heavy new particles, quark compositeness and others. The important, and successful, SM physics measurements are giving confidence that the experiments are in good shape for their journey into the uncharted territory of new physics anticipated at the LHC.

  5. Maquet Osteotomy, Results

    PubMed Central

    Díaz, Jorge Luis; Vega, Marcelo; Matesevach, Ivan

    2017-01-01

    Objectives: The objectives are to assess the results and to discuss the indications for Maquet osteotomy in patients with patellofemoral osteoarthritis. Methods: Retrospective study of a series of 32 patients (4 bilateral, that is to say, 36 knees) operated between March 1999 and October 2013 in " Arthroscopy Private Center ", 12 male and 20 female, average age 59 years with an average postoperative surgery outcomes of 53 months. The technique consists of an arthroscopic procedure to treat joint lesions and a tibial tuberosity osteotomy of 5 cm long, by embedding a 1cm subsequent graft taken from the same metaphysis and fixed with 2 screws. Results: All patients had significant improvement, evaluated with Kujala’s score (54 points preop to 86 points postop) and Guillamon Ferguson’s criteria (27.2 very good and 60.7 good). The complication rate was acceptable. Conclusion: The available technics are surgeries on proximal soft structures, osteotomies of tibial tuberosity and patellofemoral arthroplasty. Maquet osteotomy is an excellent procedure when the patient’s selection is right. Obtaining the graft from the same metaphysis simplified the procedure.

  6. Organic Separation Test Results

    SciTech Connect

    Russell, Renee L.; Rinehart, Donald E.; Peterson, Reid A.

    2014-09-22

    Separable organics have been defined as “those organic compounds of very limited solubility in the bulk waste and that can form a separate liquid phase or layer” (Smalley and Nguyen 2013), and result from three main solvent extraction processes: U Plant Uranium Recovery Process, B Plant Waste Fractionation Process, and Plutonium Uranium Extraction (PUREX) Process. The primary organic solvents associated with tank solids are TBP, D2EHPA, and NPH. There is concern that, while this organic material is bound to the sludge particles as it is stored in the tanks, waste feed delivery activities, specifically transfer pump and mixer pump operations, could cause the organics to form a separated layer in the tank farms feed tank. Therefore, Washington River Protection Solutions (WRPS) is experimentally evaluating the potential of organic solvents separating from the tank solids (sludge) during waste feed delivery activities, specifically the waste mixing and transfer processes. Given the Hanford Tank Waste Treatment and Immobilization Plant (WTP) waste acceptance criteria per the Waste Feed Acceptance Criteria document (24590-WTP-RPT-MGT-11-014) that there is to be “no visible layer” of separable organics in the waste feed, this would result in the batch being unacceptable to transfer to WTP. This study is of particular importance to WRPS because of these WTP requirements.

  7. Recent Results from HAPPEX

    SciTech Connect

    Robert Michaels

    2006-09-18

    New measurements of the parity-violating asymmetry in elastic scattering of 3GeV electrons off hydrogen and helium-4 targets at theta{sub lab} = 6 degrees are reported. The helium-4 result is A = (+6.40 {+-} 0.23 (stat) {+-} 0.12 (syst)) * 10{sup -6}. The hydrogen result is A = (-1.58 {+-} 0.12 (stat) {+-} 0.04 (syst)) * 10{sup -6}. The asymmetry for hydrogen is a function of a linear combination of G{sub E}{sup s} and G{sub M}{sup s}, the strange quark contributions to the electric and magnetic form factors of the nucleon respectively, and that for helium-4 is a function solely of G{sub E}{sup s}. The combination of the two measurements separates G{sub E}{sup s} and G{sub M}{sup s} and provide new limits on the role of strange quarks in the nucleon charge and magnetization distributions. We extract G{sub E}{sup s} = 0.002 {+-} 0.014 {+-} 0.007 at Q{sup 2} = 0.077 GeV{sup 2} and G{sub E}{sup s} + 0.09 G{sub M}{sup s} = 0.007 {+-} 0.011 {+-} 0.006 at Q{sup 2} = 0.109 GeV{sup 2}.

  8. CDF results on top

    SciTech Connect

    Beretvas, A.; CDF Collaboration

    1995-08-01

    CDF has established the existence of the top quark. Results from p{anti p} collisions at {radical}s = 1.8 TeV are presented. In the dilepton final state the authors found seven events with a background of 1.3 {+-} 0.3. In the e, {mu} + {nu} + jets channel with a b identified via a secondary vertex detector (SVX), they found twenty one events with a background of 5.5 {+-} 1.8. They measure the top quark mass to be 176 {+-} 8 (stat) {+-} 10 (syst) GeV/c{sup 2}, and the t{anti t} production cross section to be 7.6{sub {minus}2.0}{sup +2.4} pb. The integrated luminosity for the results presented in this talk is 67 pb{sup {minus}1}. The CDF detector needs to be upgraded for the next run. The integrated luminosity for the next run is expected to be more than 1,000 pb{sup {minus}1}.

  9. AMT experiment results

    NASA Technical Reports Server (NTRS)

    Abbe, Brian S.; Pinck, Deborah S.

    1995-01-01

    The Advanced Communications Technology Satellite (ACTS) Mobile Terminal (AMT) experiments have provided a terminal technology testbed for the evaluation of K- and Ka-band mobile satellite communications (satcom). Such a system could prove to be highly beneficial for many different commercial and government mobile satcom users. Combining ACTS' highly concentrated spotbeams with the smaller, higher-gain Ka-band antenna technology, results in a system design that can support a much higher throughput capacity than today's commercial configurations. To date, experiments in such diverse areas as emergency medical applications, enhanced Personal Communication Services (PCS), disaster recovery assistance, military applications, and general voice and data services have already been evaluated. Other applications that will be evaluated over the next year include telemedicine, ISDN, and television network return feed. Baseline AMT performance results will be presented, including Bit Error Rate (BER) curves and mobile propagation data characterizing the K- and Ka-band mobile satcom channel. In addition, observations from many of the application-specific experiments will also be provided.

  10. AMT experiment results

    NASA Technical Reports Server (NTRS)

    Abbe, Brian S.; Pinck, Deborah S.

    1995-01-01

    The Advanced Communications Technology Satellite (ACTS) Mobile Terminal (AMT) experiments have provided a terminal technology testbed for the evaluation of K- and Ka-band mobile satellite communications (satcom). Such a system could prove to be highly beneficial for many different commercial and government mobile satcom users. Combining ACTS' highly concentrated spotbeams with the smaller, higher-gain Ka-band antenna technology, results in a system design that can support a much higher throughput capacity than today's commercial configurations. To date, experiments in such diverse areas as emergency medical applications, enhanced Personal Communication Services (PCS), disaster recovery assistance, military applications, and general voice and data services have already been evaluated. Other applications that will be evaluated over the next year include telemedicine, ISDN, and television network return feed. Baseline AMT performance results will be presented, including Bit Error Rate (BER) curves and mobile propagation data characterizing the K- and Ka-band mobile satcom channel. In addition, observations from many of the application-specific experiments will also be provided.

  11. Recent Results from ARGUS

    NASA Astrophysics Data System (ADS)

    Schröder, Henning

    Using the ARGUS detector at the e+e- storage ring DORIS II at DESY new results on beauty and τ physics have been obtained. In particular, new measurements on fundamental constants in the Yukawa sector of the Standard Model are presented. These comprise measurements of CKM matrix elements from the study of B decays as well as determinations of properties of the τ lepton and its neutrino vτ. From semileptonic B decays ARGUS finds |Vcb|=0.050±0.008±0.007 and from B0 bar B0 mixing |Vtd|= 0.007±0.002. An analysis of the decay type τ-→π-π-π+ντ yields a τ mass of mτ=(1776.3±2.4±1.4) MeV/c2. This result also leads to an improvement of the upper limit on the m{ν r } < 31 {{{MeV}} {/ {{{MeV}} {{c}{2} }}} ; } {{c}{2} }} at the 95% confidence level.

  12. Unfavourable results in pollicisation

    PubMed Central

    Thatte, Mukund R.; Nehete, Sushil; Garude, Kirti; Mehta, Rujuta

    2013-01-01

    Pollicisation of the index finger is perhaps one of the most complex and most rewarding operations in hand and plastic surgery. It however has a steep learning curve and demands very high skill levels and experience. There are multiple pitfalls and each can result in an unfavourable result. In essence we need to: Shorten the Index, recreate the carpo metacarpal joint from the metacarpo phalangeal (MP) joint, rotate the digit by about 120° for pulp to pulp pinch, palmarly abduct by 40-50° to get a new first web gap, Shorten and readjust the tension of the extensors, re attach the intrinsics to form a thenar eminence capable of positioning the new thumb in various functional positions and finally close the flaps forming a new skin envelope. The author has performed over 75 pollicisations personally and has personal experience of some of the issues raised there. The steps mentioned therefore are an algorithm for helping the uninitiated into these choppy waters. PMID:24501467

  13. Results from TOTEM

    NASA Astrophysics Data System (ADS)

    Eggert, Karsten

    2013-06-01

    The TOTEM experiment at the CERN LHC is focussed on the measurement of the elastic proton-proton scattering, the total pp cross-section, and all kinds of diffractive phenomena. Detectors housed in "Roman Pots" which can be moved close to the outgoing proton beams allow to trigger on elastic and diffractive protons and to determine their parameters like the momentum loss and the transverse momentum transfer. In addition, charged particle detectors in the forward regions detect almost all inelastic events. Together with the CMS detector, a large solid angle is covered enabling precise studies of Min. Bias as well as Single Diffractive and Double Pomeron Interactions. The results will considerably help the interpretation of the Cosmic Ray Showers at highest energies and will give insight into the proton structure and the QCD theory of strong interactions. TOTEM measured the elastic pp- scattering over a large range of t (the squared momentum transfer) from 10-3 - 4 GeV2. Noneof the considered models could yield a satisfactory fit over the complete range. However, the exponential slope at low |t|-values and the position of the diffractiveminimum are well within the extrapolation from lower energies. The total pp cross-section has been determined in different ways from the extrapolation of the elasticscattering to t=0 (optical point) and the inelastic rate: (i) From the elastic scattering using the optical theorem and the CMS, (ii) luminosity independently, usingthe inelastic rate, elastic scattering and the optical theorem, (iii)ρ independently, by using elastic scattering, inelastic rate and the CMS luminosity. The results for the total crosssection obtained from the different methods are in excellent agreement with each other. First studies of the data on diffractive phenomena havebeen performed by correlating the momentum loss of the forward protons with the topology of the particle flux. The data look very promising and further studies will follow. Since the

  14. Recent MAGSAT results

    NASA Technical Reports Server (NTRS)

    Cain, J. C.

    1985-01-01

    Meyer, et al. have improved their original global crustal model and made a spherical harmonic analysis of the resulting magnetic field to n=50. The Z contours at 400 Km altitude from a field model composed of the first 15 degrees and order of their model and the terms n=16 to 29 from the MAGSAT model M051782 are presented. The main point to consider from such representations is that the lower order terms appear to contribute components comparable in magnitude to those of higher order. Thus, one should allow in making tectonic interpretations of global maps of anomalies such as those published by Langel, that there are likely continental scale (or smaller) features that have been removed along with the core field by the subtraction of the terms n=1 to 13 of the observed field. Planning for the analysis of data to be accrued by GRM should thus address this problem.

  15. FIRE Science Results 1989

    NASA Technical Reports Server (NTRS)

    Mcdougal, David S. (Editor)

    1990-01-01

    FIRE (First ISCCP Regional Experiment) is a U.S. cloud-radiation research program formed in 1984 to increase the basic understanding of cirrus and marine stratocumulus cloud systems, to develop realistic parameterizations for these systems, and to validate and improve ISCCP cloud product retrievals. Presentations of results culminating the first 5 years of FIRE research activities were highlighted. The 1986 Cirrus Intensive Field Observations (IFO), the 1987 Marine Stratocumulus IFO, the Extended Time Observations (ETO), and modeling activities are described. Collaborative efforts involving the comparison of multiple data sets, incorporation of data measurements into modeling activities, validation of ISCCP cloud parameters, and development of parameterization schemes for General Circulation Models (GCMs) are described.

  16. System results from FRECOPA

    SciTech Connect

    Durin, C.; Berthoud, L.; Mandeville, J.C.

    1995-02-01

    The work carried out over the past three years on FRECOPA and the LDEF has enabled a large quantity of information to be collected, part of which has already been exploited. As far as CNES is concerned, the major spin-offs of this mission mainly focus on the orbital environment and the behavior of materials in such an environment. With respect to the environment, the authors shall develop the lessons learned from expert appraisals on impacts by microparticles, which are the main feature observed in this area. As for the materials, the results show a variety of behavior when subjected to the space environment and even now constitute a wealth of information for the designing and validation of future mechanical systems. Apart from these direct spin-offs, there are repercussions on in-flight and ground testing, the calibration of test benches and improvements to simulation models.

  17. System results from FRECOPA

    NASA Technical Reports Server (NTRS)

    Durin, Christian; Berthoud, Lucinda; Mandeville, Jean-Claude

    1995-01-01

    The work carried out over the past three years on FRECOPA and the LDEF has enabled a large quantity of information to be collected, part of which has already been exploited. As far as CNES is concerned, the major spin-offs of this mission mainly focus on the orbital environment and the behavior of materials in such an environment. With respect to the environment, the authors shall develop the lessons learned from expert appraisals on impacts by microparticles, which are the main feature observed in this area. As for the materials, the results show a variety of behavior when subjected to the space environment and even now constitute a wealth of information for the designing and validation of future mechanical systems. Apart from these direct spin-offs, there are repercussions on in-flight and ground testing, the calibration of test benches and improvements to simulation models.

  18. Top physics: CDF results

    SciTech Connect

    K. Bloom

    2004-06-23

    The top quark plays an important role in the grand scheme of particle physics, and is also interesting on its own merits. We present recent results from CDF on top-quark physics based on 100-200 pb{sup -1} of p{bar p} collision data. We have measured the t{bar t} cross section in different decay modes using several different techniques, and are beginning our studies of top-quark properties. New analyses for this conference include a measurement of {sigma}{sub t{bar t}} in the lepton-plus-jets channel using a neural net to distinguish signal and background events, and measurements of top-quark branching fractions.

  19. Undulator Transportation Test Results

    SciTech Connect

    Wolf, Zachary; Horton, Nick; Kharakh, David; Levashov, Yurii; Nuhn, Heinz-Dieter; Poling, Ben; Reese, Ed; /SLAC

    2010-11-17

    A test was performed to determine whether transporting and handling the undulators makes any changes to their properties. This note documents the test. No significant changes to the test undulator were observed. After the LCLS undulators are tuned and fiducialized in the Magnetic Measurement Facility (MMF), they must be transported to storage buildings and transported to the tunnel. It has been established that the undulators are sensitive to temperature. We wish to know whether the undulators are also sensitive to the vibrations and shocks of transportation. To study this issue, we performed a test in which an undulator was measured in the MMF, transported to the tunnel, brought back to the MMF, and re-measured. This note documents the test and the results.

  20. Test results: EMIR optomechanics

    NASA Astrophysics Data System (ADS)

    Barrera, S.; Gonzalez, C.; Manescau, A.; Abreu, D.; Becerril, S.; Correa, S.; Fragoso, A.; Perez, J.; Redondo, P.; Restrepo, R.; Saavedra, P.; Sanchez, V.; Tenegi, F.; Garzon, F.; Patron, J.

    2005-08-01

    EMIR is a NIR multiobject spectrograph with imaging capabilities to be used at the GTC. The first collimator lens in EMIR, made of Fused Silica, has an outer diameter of 490 mm, and a weight of 265 N, which make it one of the largest Fused Silica lenses ever mounted to work under cryogenic conditions. The results of the various tests being done at the IAC (with two different lens dummies) in order to validate a mounting design concept for this lens, are presented here. The radial support concept tested consists of three contact areas around the lens, one of which is a PTFE block, preloaded by coil springs and the other two are fixed supports made of Aluminum and PTFE, dimensioned in order to keep lens centered both at room temperature and under operation conditions.

  1. Recent Results from Phobos

    SciTech Connect

    Garcia, Edmundo; Betts, R. R.; Garcia, E.; Halliwell, C.; Hofman, D. J.; Hollis, R. S.; Iordanova, A.; Sagerer, J.; Smith, C. E.; Back, B. B.; Baker, M. D.; Barton, D. S.; Carroll, A.; Chai, Z.; George, N.; Hauer, M.; Holzman, B.; Pak, R.; Seals, H.; Sedykh, I.

    2007-02-12

    The PHOBOS detector is one of four heavy ion experiments at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. In this paper we will review some of the results of PHOBOS from the data collected in p+p, d+Au and Au+Au collisions at nucleon-nucleon center-of-mass energies up to 200 GeV. Evidence is found of the formation of a very high energy density and highly interactive system, which can not be described in terms of hadrons, and has a relatively low baryon density. There is evidence that the system formed is thermalized to a certain degree. Scaling with the number of participants and extended longitudinal scaling behavior are also observed in distributions of produced charged particles.

  2. MRC testing and results

    NASA Astrophysics Data System (ADS)

    Akins, A. J.; Romano, B. C.; Waugh, C. W.

    A media resource controller (MRC) advanced development model (ADM) has been developed. The MRC is a device that provides adaptive routing of data and voice traffic over a multimedia, packet switch network. Five MRC ADMs and a network evaluator and simulator (which allows the simulation of additional MRC nodes) will provide a testbed evaluation capability. The testbed is being used to investigate the operational benefits that can be gained by using a multimedia tactical communications network and to evaluate the performance characteristics of the MRC. An overview is given of the MRC design, with an emphasis on the relationship between operational goals and design choices. The test approach, evaluation criteria, and preliminary test results are discussed.

  3. Iron Mountain Electromagnetic Results

    SciTech Connect

    Gail Heath

    2012-07-01

    Iron Mountain Mine is located seventeen miles northwest of Redding, CA. After the completion of mining in early 1960s, the mine workings have been exposed to environmental elements which have resulted in degradation in water quality in the surrounding water sheds. In 1985, the EPA plugged ore stoops in many of the accessible mine drifts in an attempt to restrict water flow through the mine workings. During this process little data was gathered on the orientation of the stoops and construction of the plugs. During the last 25 years, plugs have begun to deteriorate and allow acidic waters from the upper workings to flow out of the mine. A team from Idaho National Laboratory (INL) performed geophysical surveys on a single mine drift and 3 concrete plugs. The project goal was to evaluate several geophysical methods to determine competence of the concrete plugs and orientation of the stopes.

  4. Latest results of OPERA

    NASA Astrophysics Data System (ADS)

    Meregaglia, A.; OPERA Collaboration

    2017-04-01

    OPERA is a long baseline neutrino experiment which took data between 2008 and 2012 having for goal the observation of the νμ →ντ transition in appearance mode i.e. detecting the τ lepton. The detector was located in the underground Gran Sasso laboratory, 730 km away from the CNGS neutrino beam production at CERN. The collaboration observed 5 ντ candidates which, considering the very low expected background of 0.25 events, allowed for a discovery claim of neutrino oscillation in appearance mode at the level of 5.1 σ. Additional analyses were performed aiming at the possible observation of the νμ →νe transition, and at the search for anomalies related to the possible existence of a sterile neutrino. In this paper, after a short introduction describing the detector, the different results are presented on both oscillation channels including standard 3 flavour scenario and possible new physics.

  5. Results of patch tests

    SciTech Connect

    Pontius, D.H.

    1994-10-01

    The objectives of this work were to construct, install, and operate a patch testing unit on a hot gas stream at a coal-fired fluidized-bed boiler. A 2,000-hour patch test was conducted on ceramic disks of materials used in the fabrication of ceramic candles and ceramic cross-flow filters. The primary issues addressed in these tests were the long-term physical, thermal, and chemical stability of the ceramic materials; long-term pressure drop and filtration characteristics of the ceramic filters; potential for irreversible blinding of filter elements; and long-term performance and reliability of auxiliary hardware, such as the tube sheet and pulse-cleaning systems. Results on three samples, or patches, 10 cm in diameter are given.

  6. 2012 election results

    NASA Astrophysics Data System (ADS)

    Robinson, Robert; Tetzlaff, Doerthe

    2012-10-01

    On 4 October 2012, AGU members completed voting for the 2013-2014 leadership term. Union officers, Board members, section and focus group officers, and student and early career representatives to the Council were elected. All members who joined or renewed their membership by 1 July 2012 were eligible to vote in this year's leadership election. The vote was held electronically, and access to voting was provided to all eligible voters for a period of 31 days. The voting was conducted by Survey and Ballot Systems, Inc. (SBS). SBS, which offers election planning and management services, provided unique login credentials and other support services for eligible voters throughout the election. Voting results were certified by SBS on 8 October and by the AGU Tellers Committee on 9 October. The overall participation rate was 21.9%, an increase over previous AGU elections.

  7. Viscosupplementation: techniques, indications, results.

    PubMed

    Legré-Boyer, V

    2015-02-01

    Viscosupplementation by hyaluronic acid (HA) injections is frequently used for local treatment of osteoarthritis (OA), due to ease of use and good tolerance. A profusion of linear or reticulated HA derivates are marketed, with varied characters and levels of evidence. Viscosupplementation has demonstrated moderate but significant efficacy (20%) versus placebo in terms of pain and function, with a high rate of responders (60-70%) in knee osteoarthritis. It allows reduced administration of opioid analgesics and NSAIDs, with improved risk/benefit ratio, and may delay joint replacement. Cartilage protection remains to be proven. Clinical efficacy shows 1-4 weeks' later onset than corticosteroids, but is maintained for 6 or even 12 months. Systematic association of corticosteroid and HA injection is not justified, and an interval has to be left before undertaking arthroplasty. Intra-articular injection of HA requires a skilled specialist, and may be difficult in a non-swollen joint; some tips and tricks may be helpful. In other joints than the knee, radiologic or ultrasound guidance is recommended. The efficacy of viscosupplementation is a matter of ongoing debate, after discordant findings in some meta-analyses. Some poor results may be due to inappropriate use of HA injections, poorly adapted to the patient's OA phenotype. Viscosupplementation is a treatment for chronic moderate symptomatic OA, and not for flares with joint swelling. Application in sport-related chondropathy has yet to be properly assessed. The optimal response profile remains to be determined. The ideal indication in the knee seems to be moderate femorotibial OA without swelling. Results have been generally disappointing in hip osteoarthritis but promising in OA of the ankle and shoulder (with and without rotator cuff tear). Further studies are needed to determine response profile and optimal treatment schedule, according to the joint.

  8. LSND neutrino oscillation results

    SciTech Connect

    Louis, W.C.; LSND Collaboration

    1996-10-01

    The LSND (Liquid Scintillator Neutrino Detector) experiment at Los Alamos has conducted a search for muon antineutrino {r_arrow} electron antineutrino oscillations using muon neutrinos from antimuon decay at rest. The electron antineutrinos are detected via the reaction electron antineutrino + proton {r_arrow} positron + neutron, correlated with the 2.2-MeV gamma from neutron + proton {r_arrow} deuteron + gamma. The use of tight cuts to identify positron events with correlated gamma rays yields 22 events with positron energy between 36 and 60 MeV and only 4.6 {+-} 0.6 background events. The probability that this excess is due entirely to a statistical fluctuation is 4.1 {times} 10{sup -8}. A chi-squared fit to the entire positron sample results in a total excess of 51.8 {sup +18.7}{sub -16.9} {+-} 8.0 events with positron energy between 20 and 60 MeV. If attributed to muon antineutrino {r_arrow} electron antineutrino oscillations, this corresponds to an oscillation probability (averaged over the experimental energy and spatial acceptance) of (0.31 {+-} 0.12 {+-} 0.05){percent}. 10 refs., 7 figs., 1 tab.

  9. LSND neutrino oscillation results

    SciTech Connect

    White, D.H.; LSND Collaboration

    1997-11-01

    The LSND experiment at Los Alamos has conducted a search for {anti v}{sub {mu}} {yields} {anti v}{sub e} oscillations using {anti v}{sub {mu}} from {mu}{sup +} decay at rest. The {anti v}{sub e} are detected via the reaction {anti v}{sub e} p {yields} e{sup +}n, correlated with the 2.2 MeV {gamma} from n p {yields} d {gamma}. The use of tight cuts to identify e{sup +} events with correlated {gamma} rays yielded 22 events with e{sup +} energy between 36 and 60 MeV and only 4.6 {+-} 0.6 background events. The probability that this excess is due entirely to a statistical fluctuation is 4.1 {times} 10{sup {minus}8}. A {chi}{sup 2} fit to the entire e{sup +} sample results in a total excess of 51.8{sub {minus}16.9}{sup +18.7} {+-} 8.0 events with e{sup +} energy between 20 and 60 MeV. If attributed to {anti v}{sub {mu}} {yields} {anti v}{sub e} oscillations, this corresponds to an oscillation probability (averaged over the experimental energy and spatial acceptance) of 0.31 {+-} 0.12 {+-} 0.05%.

  10. SAA drift: Experimental results

    NASA Astrophysics Data System (ADS)

    Grigoryan, O. R.; Romashova, V. V.; Petrov, A. N.

    According to the paleomagnetic analysis there are variations of Earth’s magnetic field connected with magnetic moment changing. These variations affect on the South Atlantic Anomaly (SAA) location. Indeed different observations approved the existence of the SAA westward drift rate (0.1 1.0 deg/year) and northward drift rate (approximately 0.1 deg/year). In this work, we present the analysis of experimental results obtained in Scobeltsyn Institute of Nuclear Physics, Moscow State University (SINP MSU) onboard different Earth’s artificial satellites (1972 2003). The fluxes of protons with energy >50 MeV, gamma quanta with energy >500 keV and neutrons with energy 0.1 1.0 MeV in the SAA region have been analyzed. The mentioned above experimental data were obtained onboard the orbital stations Salut-6 (1979), MIR (1991, 1998) and ISS (2003) by the similar experimental equipment. The comparison of the data obtained during these two decades of investigations confirms the fact that the SAA drifts westward. Moreover the analysis of fluxes of electrons with energy about hundreds keV (Cosmos-484 (1972) and Active (Interkosmos-24, 1991) satellites) verified not only the SAA westward drift but northward drift also.

  11. Recent Dama Results

    NASA Astrophysics Data System (ADS)

    Bernabei, R.; Belli, P.; Montecchia, F.; Nozzoli, F.; Cappella, F.; D'Angelo, A.; Incicchitti, A.; Prosperi, D.; Cerulli, R.; Dai, C. J.; He, H. L.; Kuang, H. H.; Ma, J. M.; Ye, Z. P.

    2006-04-01

    DAMA is an observatory for rare processes and it is operative deep underground at the Gran Sasso National Laboratory of the I.N.F.N. The experiment developes and uses low background scintillator for rare processes investigation. In this paper, after a short presentation of the main DAMA set-ups, the DAMA/NaI apparatus (≃ 100 kg highly radiopure NaI(Tl)) and its main results in the Dark Matter field will be addressed. This experiment, in particular, has effectively investigated the presence of a Dark Matter particle component in the galactic halo by exploiting the model-independent annual modulation signature over seven annual cycles (total exposure of 107731 kg × day), obtaining a 6.3 σ C.L. model-independent evidence for such a presence. In addition, some corollary model-dependent quests to investigate the nature of a candidate particle will be recalled. The new additional analysis for a pseudoscalar and for a scalar bosonic candidate (whose detection only involves electrons and photons/X-rays) will be addressed as well. Some perspectives of the second generation DAMA/LIBRA set-up (≃ 250 kg highly radiopure NaI(Tl)), presently in measurement deep underground, will be mentioned.

  12. Results from SNO

    SciTech Connect

    Chan, Yuen-dat

    2001-10-01

    The Sudbury Neutrino Observatory (SNO) is an underground heavy water Cherenkov detector for studying solar neutrinos. SNO is capable of performing both flavor sensitive and flavor blind measurements of the solar neutrino flux. The first charged current (CC) measurement is found to be: {psi}{sub SNO}{sup CC}({nu}{sub e}) = 1.75 {+-} 0.07(stat.){sub -0.11}{sup +0.12}(sys.) {+-} 0.05 (theor.) x 10{sup 6} cm{sup -2}s{sup -1} and the elastic scattering fluxes (ES) is: {psi}{sub SNO}{sup ES}({nu}{sub x}) = 2.39 {+-} 0.34(stat.){sub -0.14}{sup +0.16} (sys.) x 10{sup 6} cm{sup -2}s{sup -1}. The {psi}{sub SNO}{sup CC}({nu}{sub e}) result, when combined with the high statistics elastic scattering (ES) measurement from Super-Kamiokande, provide a strong evidence for solar neutrino flavor transformation (3.3{sigma}). The deduced total solar neutrino flux is in good agreement with standard solar model predictions. No significant distortion in the energy spectrum is observed.

  13. ALICE TPC commissioning results

    NASA Astrophysics Data System (ADS)

    Larsen, D. T.; Alice Tpc Collaboration

    2010-05-01

    ALICE is a dedicated heavy-ion experiment at CERN LHC aiming to study the properties of the quark-gluon plasma. A lead-lead collision might produce several 10 00 new particles. Detailed study of the event requires precise measurements of the particle tracks. A 90 m3 Time Projection Chamber (TPC) with more than 500 000 read-out pads was built as the main central barrel tracker. Collisions can be recorded at a rate of up to about 1 kHz. The front-end electronics, designed from FPGAs and custom ASICs, performs shaping, amplification, digitisation and digital filtering of the signals. The data are forwarded to DAQ via 216 1.25 Gb/s fibre-optical links. Configuration, control and monitoring is done by an embedded Linux system on the front-end electronics. Before production runs with beam, extensive commissioning using tracks from cosmics and from the laser system as well as clusters from radioactive krypton gas is needed. Extensive results have been obtained with respect to the performance of the TPC including its sub-systems.

  14. Databases for LDEF results

    NASA Technical Reports Server (NTRS)

    Bohnhoff-Hlavacek, Gail

    1992-01-01

    One of the objectives of the team supporting the LDEF Systems and Materials Special Investigative Groups is to develop databases of experimental findings. These databases identify the hardware flown, summarize results and conclusions, and provide a system for acknowledging investigators, tracing sources of data, and future design suggestions. To date, databases covering the optical experiments, and thermal control materials (chromic acid anodized aluminum, silverized Teflon blankets, and paints) have been developed at Boeing. We used the Filemaker Pro software, the database manager for the Macintosh computer produced by the Claris Corporation. It is a flat, text-retrievable database that provides access to the data via an intuitive user interface, without tedious programming. Though this software is available only for the Macintosh computer at this time, copies of the databases can be saved to a format that is readable on a personal computer as well. Further, the data can be exported to more powerful relational databases, capabilities, and use of the LDEF databases and describe how to get copies of the database for your own research.

  15. Simpler images, better results

    NASA Astrophysics Data System (ADS)

    Chance, Britton

    1999-03-01

    The very rapid development of optical technology has followed a pattern similar to that of nuclear magnetic resonance: first, spectroscopy and then imaging. The accomplishments in spectroscopy have been significant--among them, early detection of hematomas and quantitative oximetry (assuming that time and frequency domain instruments are used). Imaging has progressed somewhat later. The first images were obtained in Japan and USA a few years ago, particularly of parietal stimulation of the human brain. Since then, rapid applications to breast and limb, together with higher resolution of the brain now make NIR imaging of functional activation and tumor detection readily available, reliable and affordable devices. The lecture has to do with the applications of imaging to these three areas, particularly to prefrontal imaging of cognitive function, of breast tumor detection, and of localized muscle activation in exercise. The imaging resolution achievable in functional activation appears to be FWHM of 4 mm. The time required for an image is a few seconds or even much less. Breast image detection at 50 microsecond(s) ec/pixel results in images obtainable in a few seconds or shorter times (bandwidths of the kHz are available). Finally, imaging of the body organs is under study in this laboratory, particularly in the in utero fetus. It appears that the photon migration theory now leads to the development of a wide number of images for human subject tissue spectroscopy and imaging.

  16. ALOS-2 initial results

    NASA Astrophysics Data System (ADS)

    Kankaku, Yukihiro; Suzuki, Shinichi; Shimada, Masanobu

    2015-10-01

    The Advanced Land Observing Satellite-2 (ALOS-2) was launched from Tanegashima Space Center by H-IIA rocket successfully on 24th May 2014. ALOS-2 carries the Phased Array type L-band Synthetic Aperture Radar-2 (PALSAR-2) as the state-of-the-art L-band SAR system which succeeds to PALSAR onboard ALOS. PALSAR-2 uses almost whole bandwidth allocated for L-band active sensor of Earth Exploration Satellites Service specified by the Radio Regulation in order to realize the high resolution observation, and also, it transmits more than 6 kW power for lower Noise Equivalent Sigma Zero using 180 TRMs driven by Gallium Nitride (GaN) amplifier which is the first use in space. Furthermore, because ALOS-2 carries the SAR system only, PALSAR-2 antenna can be mounted under the satellite body. It enables to observe right-/left-looking observation by satellite maneuvering. And the high accuracy orbit control to maintain the satellite within 500 m radius tube against the reference orbit enables high coherence for the InSAR processing. Using these new technologies, ALOS-2 has been operating to fulfill the mission requirements such as disaster monitoring and so on. This document introduces the initial result of ALOS-2 from the first year operation.

  17. Results of hip resurfacing

    PubMed Central

    Favetti, Fabio; Casella, Filippo; Papalia, Matteo; Panegrossi, Gabriele

    2011-01-01

    Background The renewed popularity of resurfacing hip arthroplasty in the last 10 years has generated a remarkable quantity of scientific contributions based on mid- and short-term follow-up. More than one paper has reported a consistent early revision rate as a consequence of biological or biomechanical failure. Two major complications are commonly described with resurfacing implants: avascular necrosis and femoral-neck fracture. A close relationship between these two events has been suggested, but not firmly demonstrated, whereas cementing technique seems to be better understood as potential cause of failure. Methods We performed an in vitro study in which four different resurfacing implants were evaluated with a simulated femoral head, two types of cement, (low and high viscosity) and two cementing techniques: direct (cement apposition directly on the femoral head) and indirect (cement poured into the femoral component). Results High-viscosity cement showed homogeneous distribution over the entire femoral head. Low-viscosity cement showed a massive polar concentration with insufficient, if not absent, distribution in the equatorial zone. Conclusion Polar cement concentration could be a risk factor for early implant failure due to two effects on the femoral head: biological (excessive local exothermic reaction could cause osteocyte necrosis) and biomechanical (which could lead to uneven load distribution on the femoral head). PMID:21234563

  18. CTF Challenge: Result Summary

    PubMed Central

    Marabini, Roberto; Carragher, Bridget; Chen, Shaoxia; Chen, James; Cheng, Anchi; Downing, Kenneth H.; Frank, Joachim; Grassucci, Robert A.; Heymann, J. Bernard; Jiang, Wen; Jonic, Slavica; Liao, Hstau Y.; Ludtke, Steven J.; Patwari, Shail; Piotrowski, Angela L.; Quintana, Adrian; Sorzano, Carlos O.S.; Stahlberg, Henning; Vargas, Javier; Voss, Neil R.; Chiu, Wah; Carazo, Jose M.

    2015-01-01

    Image formation in bright field electron microscopy can be described with the help of the contrast transfer function (CTF). In this work the authors describe the “CTF Estimation Challenge”, called by the Madrid Instruct Image Processing Center (I2PC) in collaboration with the National Center for Macromolecular Imaging (NCMI) at Houston. Correcting for the effects of the CTF requires accurate knowledge of the CTF parameters, but these have often been difficult to determine. In this challenge, researchers have had the opportunity to test their ability in estimating some of the key parameters of the electron microscope CTF on a large micrograph data set produced by well-known laboratories on a wide set of experimental conditions. This work presents the first analysis of the results of the CTF Estimation Challenge, including an assessment of the performance of the different software packages under different conditions, so as to identify those areas of research where further developments would be desirable in order to achieve high-resolution structural information. PMID:25913484

  19. SWAT laboratory test results

    NASA Astrophysics Data System (ADS)

    Parenti, Ronald R.; Murphy, Daniel V.

    1993-03-01

    The non-cooperative-target beam-control problem has been the subject of intense investigation since the synthetic-beacon concept was first introduced to the high-energy-laser community in 1982. While numerous analytical studies and computer simulations have been performed to evaluate the practical utility of this phase-measurement technique, prior to Lincoln Laboratory's SWAT (Short-Wavelength Adaptive Techniques) program, no experimental verification had been obtained. In the first phase of the SWAT investigation, completed in 1985, a high degree of correlation between differential-phase measurements from natural and artificial sources was demonstrated. The next phase of the SWAT program will be performed at the AMOS (Air Force Maui Optical Station) facility in Maui, where a 241-actuator adaptive-optics system and an array of six dye lasers will be integrated with the site's 60-cm beam director. Prior to shipment, the adaptive-optics subsystem was subjected to a thorough laboratory evaluation, which culminated in a series of compensation tests involving simulated beacon sources. The results of these measurements are in good agreement with theoretical predictions and provide strong evidence of the efficacy of the synthetic-beacon approach.

  20. Climax granite test results

    SciTech Connect

    Ramspott, L.D.

    1980-01-15

    The Lawrence Livermore Laboratory (LLL), as part of the Nevada Nuclear Waste Storage Investigations (NNWSI) program, is carrying out in situ rock mechanics testing in the Climax granitic stock at the Nevada Test Site (NTS). This summary addresses only those field data taken to date that address thermomechanical modeling for a hard-rock repository. The results to be discussed include thermal measurements in a heater test that was conducted from October 1977 through July 1978, and stress and displacement measurements made during and after excavation of the canister storage drift for the Spent Fuel Test (SFT) in the Climax granite. Associated laboratory and field measurements are summarized. The rock temperature for a given applied heat load at a point in time and space can be adequately modeled with simple analytic calculations involving superposition and integration of numerous point source solutions. The input, for locations beyond about a meter from the source, can be a constant thermal conductivity and diffusivity. The value of thermal conductivity required to match the field data is as much as 25% different from laboratory-measured values. Therefore, unless we come to understand the mechanisms for this difference, a simple in situ test will be required to obtain a value for final repository design. Some sensitivity calculations have shown that the temperature field is about ten times more sensitive to conductivity than to diffusivity under the test conditions. The orthogonal array was designed to detect anisotropy. After considering all error sources, anisotropic efforts in the thermal field were less than 5 to 10%.

  1. [SENTIERI Project: results].

    PubMed

    Crocetti, Emanuele; Pirastu, Roberta; Buzzoni, Carlotta; Minelli, Giada; Manno, Valerio; Bruno, Caterina; Fazzo, Lucia; Iavarone, Ivano; Pasetto, Roberto; Ricci, Paolo; Zona, Amerigo; Conti, Susanna; Comba, Pietro

    2014-01-01

    Of the 18 National Priority Contaminated Sites (NPCSs) analysed in this Report, some have a single source of environmental contamination (such as fluoro-edenite in Biancavilla). In most cases, however, we are looking at multiple heterogeneous sources of contamination. In this respect, the a priori causal evaluation of the association between diseases and environmental exposures in NPCSs, based on epidemiological evidence, can help trace the health impact back to specific types of environmental exposure. There are several cases in which the project's findings have been consistent with a priori evidence: stomach cancer (both genders, excess cancer incidence) in the Fidenza NPCS; stomach cancer (women, excess mortality, cancer incidence and hospital discharges) in the Laguna di Grado e Marano NPCS; excess hospitalisation from respiratory diseases in Brescia-Caffaro, Milazzo and Terni Papigno NPCSs; excesses for non-Hodgkin lymphomas and melanoma (incidence and hospitalisation in men and women) and breast cancer (incidence and hospital discharges, women) in Brescia-Caffaro NPCS. In preorder to properly evaluate the population's health profile, we must also observe whether results remain consistent for all three health outcomes or in both genders. The first is the case of excess mortality, cancer incidence and hospital discharges for bladder cancer (men) in Porto Torres and diseases of the urinary tract in the Basso bacino del fiume Chienti NPCS). Gender consistency is observed, for instance, for all cancer in Bolzano, Porto Torres, Venice, Litorale Domizio Flegreo, Priolo, and Taranto, for all causes in Taranto, Litorale Domizio Flegreo and Trieste. The health impact in the various NPCSs needs to be considered carefully and used as a springboard for further analytical research that could confirm and explain causal links to specific environmental exposures. The observations can, however, already be considered as a basis for mandatory primary prevention measures.

  2. Overview of MAST results

    NASA Astrophysics Data System (ADS)

    Chapman, I. T.; Adamek, J.; Akers, R. J.; Allan, S.; Appel, L.; Asunta, O.; Barnes, M.; Ben Ayed, N.; Bigelow, T.; Boeglin, W.; Bradley, J.; Brünner, J.; Cahyna, P.; Carr, M.; Caughman, J.; Cecconello, M.; Challis, C.; Chapman, S.; Chorley, J.; Colyer, G.; Conway, N.; Cooper, W. A.; Cox, M.; Crocker, N.; Crowley, B.; Cunningham, G.; Danilov, A.; Darrow, D.; Dendy, R.; Diallo, A.; Dickinson, D.; Diem, S.; Dorland, W.; Dudson, B.; Dunai, D.; Easy, L.; Elmore, S.; Field, A.; Fishpool, G.; Fox, M.; Fredrickson, E.; Freethy, S.; Garzotti, L.; Ghim, Y. C.; Gibson, K.; Graves, J.; Gurl, C.; Guttenfelder, W.; Ham, C.; Harrison, J.; Harting, D.; Havlickova, E.; Hawke, J.; Hawkes, N.; Hender, T.; Henderson, S.; Highcock, E.; Hillesheim, J.; Hnat, B.; Holgate, J.; Horacek, J.; Howard, J.; Huang, B.; Imada, K.; Jones, O.; Kaye, S.; Keeling, D.; Kirk, A.; Klimek, I.; Kocan, M.; Leggate, H.; Lilley, M.; Lipschultz, B.; Lisgo, S.; Liu, Y. Q.; Lloyd, B.; Lomanowski, B.; Lupelli, I.; Maddison, G.; Mailloux, J.; Martin, R.; McArdle, G.; McClements, K.; McMillan, B.; Meakins, A.; Meyer, H.; Michael, C.; Militello, F.; Milnes, J.; Morris, A. W.; Motojima, G.; Muir, D.; Nardon, E.; Naulin, V.; Naylor, G.; Nielsen, A.; O'Brien, M.; O'Gorman, T.; Ono, Y.; Oliver, H.; Pamela, S.; Pangione, L.; Parra, F.; Patel, A.; Peebles, W.; Peng, M.; Perez, R.; Pinches, S.; Piron, L.; Podesta, M.; Price, M.; Reinke, M.; Ren, Y.; Roach, C.; Robinson, J.; Romanelli, M.; Rozhansky, V.; Saarelma, S.; Sangaroon, S.; Saveliev, A.; Scannell, R.; Schekochihin, A.; Sharapov, S.; Sharples, R.; Shevchenko, V.; Silburn, S.; Simpson, J.; Storrs, J.; Takase, Y.; Tanabe, H.; Tanaka, H.; Taylor, D.; Taylor, G.; Thomas, D.; Thomas-Davies, N.; Thornton, A.; Turnyanskiy, M.; Valovic, M.; Vann, R.; Walkden, N.; Wilson, H.; van Wyk, F.; Yamada, T.; Zoletnik, S.; MAST; MAST Upgrade Teams

    2015-10-01

    The Mega Ampère Spherical Tokamak (MAST) programme is strongly focused on addressing key physics issues in preparation for operation of ITER as well as providing solutions for DEMO design choices. In this regard, MAST has provided key results in understanding and optimizing H-mode confinement, operating with smaller edge localized modes (ELMs), predicting and handling plasma exhaust and tailoring auxiliary current drive. In all cases, the high-resolution diagnostic capability on MAST is complemented by sophisticated numerical modelling to facilitate a deeper understanding. Mitigation of ELMs with resonant magnetic perturbations (RMPs) with toroidal mode number nRMP = 2, 3, 4, 6 has been demonstrated: at high and low collisionality; for the first ELM following the transition to high confinement operation; during the current ramp-up; and with rotating nRMP = 3 RMPs. nRMP = 4, 6 fields cause less rotation braking whilst the power to access H-mode is less with nRMP = 4 than nRMP = 3, 6. Refuelling with gas or pellets gives plasmas with mitigated ELMs and reduced peak heat flux at the same time as achieving good confinement. A synergy exists between pellet fuelling and RMPs, since mitigated ELMs remove fewer particles. Inter-ELM instabilities observed with Doppler backscattering are consistent with gyrokinetic simulations of micro-tearing modes in the pedestal. Meanwhile, ELM precursors have been strikingly observed with beam emission spectroscopy (BES) measurements. A scan in beta at the L-H transition shows that pedestal height scales strongly with core pressure. Gyro-Bohm normalized turbulent ion heat flux (as estimated from the BES data) is observed to decrease with increasing tilt of the turbulent eddies. Fast ion redistribution by energetic particle modes depends on density, and access to a quiescent domain with ‘classical’ fast ion transport is found above a critical density. Highly efficient electron Bernstein wave current drive (1 A W-1) has been achieved

  3. National Hospice Survey Results

    PubMed Central

    Aldridge, Melissa D.; Schlesinger, Mark; Barry, Colleen L.; Morrison, R. Sean; McCorkle, Ruth; Hürzeler, Rosemary; Bradley, Elizabeth H.

    2015-01-01

    IMPORTANCE The impact of the substantial growth in for-profit hospices in the United States on quality and hospice access has been intensely debated, yet little is known about how for-profit and nonprofit hospices differ in activities beyond service delivery. OBJECTIVE To determine the association between hospice ownership and (1) provision of community benefits, (2) setting and timing of the hospice population served, and (3) community outreach. DESIGN, SETTING, AND PARTICIPANTS Cross-sectional survey (the National Hospice Survey), conducted from September 2008 through November 2009, of a national random sample of 591 Medicare-certified hospices operating throughout the United States. EXPOSURES For-profit or nonprofit hospice ownership. MAIN OUTCOMES AND MEASURES Provision of community benefits; setting and timing of the hospice population served; and community outreach. RESULTS A total of 591 hospices completed our survey (84% response rate). For-profit hospices were less likely than nonprofit hospices to provide community benefits including serving as training sites (55% vs 82%; adjusted relative risk [ARR], 0.67 [95% CI, 0.59–0.76]), conducting research (18% vs 23%; ARR, 0.67 [95% CI, 0.46–0.99]), and providing charity care (80% vs 82%; ARR, 0.88 [95% CI, 0.80–0.96]). For-profit compared with nonprofit hospices cared for a larger proportion of patients with longer expected hospice stays including those in nursing homes (30% vs 25%; P = .009). For-profit hospices were more likely to exceed Medicare’s aggregate annual cap (22% vs 4%; ARR, 3.66 [95% CI, 2.02–6.63]) and had a higher patient disenrollment rate (10% vs 6%; P < .001). For-profit were more likely than nonprofit hospices to engage in outreach to low-income communities (61% vs 46%; ARR, 1.23 [95% CI, 1.05–1.44]) and minority communities (59% vs 48%; ARR, 1.18 [95% CI, 1.02–1.38]) and less likely to partner with oncology centers (25% vs 33%; ARR, 0.59 [95% CI, 0.44–0.80]). CONCLUSIONS AND

  4. GAUSS Project Trials Results

    NASA Astrophysics Data System (ADS)

    Di Fazio, Antonella; Vernucci, Antonio; Rossini, Eugenio

    2003-07-01

    , specifically operating in inland- waterways and roads. Safety-of-life applications for assisted vessel navigation and for management of hazardous goods (gas) transhipment over the Po river were thoroughly tested and assessed. Applications for emergency assistance, Point of Interest inquiry, localisation of commercial fleet were also proven.GAUSS successfully demonstrated integrated GNSS1 precise positioning based on EGNOS and satellite UMTS packet communication. The new technology with respect to the current state-of the art, developed within the project, was validated during the trial campaign, including the implemented broadcasting and multicasting communication of data packet compliant to 3GPP standard (current release 4). Horizontal accuracy better than 3-m was achieved in the trial area (Northern Italy - Lario - Como Lake, Parma and Po river areas), thanks to the navigation functions based on GPS signals augmented with SBAS techniques. The MTB (Mediterranean Test Bed) was utilised because of the poor performance coverage of the ESTB system over the Italian regions.In this paper, the results of the GAUSS trial campaign are reported, along with their assessment and evaluation in terms of possible enhancements and future exploitations.

  5. RESULTATIVE VERBS AND OTHER PROBLEMS.

    ERIC Educational Resources Information Center

    HASHIMOTO, ANNE YUE

    THE SO-CALLED RESULTATIVE VERBS IN MANDARIN CHINESE ARE STUDIED WITHIN THE GENERAL FRAMEWORK OF A TRANSFORMATIONAL GRAMMAR. THE RESULTATIVE VERBS ARE GENERALLY CONSIDERED AS CONSISTING OF TWO COMPONENTS--A VERBAL COMPONENT FOLLOWED BY A RESULTATIVE OR DIRECTIONAL COMPLEMENT. OTHER PROBLEMS RELATED TO COMPLEMENTS ARE ALSO TOUCHED UPON, FOR EXAMPLE,…

  6. Paradoxical Results and Item Bundles

    ERIC Educational Resources Information Center

    Hooker, Giles; Finkelman, Matthew

    2010-01-01

    Hooker, Finkelman, and Schwartzman ("Psychometrika," 2009, in press) defined a paradoxical result as the attainment of a higher test score by changing answers from correct to incorrect and demonstrated that such results are unavoidable for maximum likelihood estimates in multidimensional item response theory. The potential for these results to…

  7. Paradoxical Results and Item Bundles

    ERIC Educational Resources Information Center

    Hooker, Giles; Finkelman, Matthew

    2010-01-01

    Hooker, Finkelman, and Schwartzman ("Psychometrika," 2009, in press) defined a paradoxical result as the attainment of a higher test score by changing answers from correct to incorrect and demonstrated that such results are unavoidable for maximum likelihood estimates in multidimensional item response theory. The potential for these results to…

  8. Misleading biochemical laboratory test results

    PubMed Central

    Nanji, Amin A.

    1984-01-01

    This article reviews the general and specific factors that interfere with the performance of common biochemical laboratory tests and the interpretation of their results. The clinical status of the patient, drug interactions, and in-vivo and in-vitro biochemical interactions and changes may alter the results obtained from biochemical analysis of blood constituents. Failure to recognize invalid laboratory test results may lead to injudicious and dangerous management of patients. PMID:6375845

  9. Watershed Assessment, Tracking & Environmental ResultS (WATERS)

    EPA Pesticide Factsheets

    The Watershed Assessment, Tracking & Environmental Results (WATERS) is an integrated information system for the nation's surface waters connecting Office of Water databases to a larger network of water information.

  10. BAV-Results of observations

    NASA Astrophysics Data System (ADS)

    Hübscher, Joachim; Steinbach, Hans-Mereyntje; Vohla, Frank; Walter, Frank

    2009-01-01

    This 62nd compilation contains the results of visual observations of BAV-members from the years 2007 and 2008. Here we publish altogether 337 minima and maxima of 201 eclipsing binaries, pulsating and eruptive stars. The data were acquired by 14 observers. The compilation contains also one photographic- and two ccd-results.

  11. Top physics results at CDF

    SciTech Connect

    Vickey, Trevor; /Illinois U., Urbana

    2005-05-01

    The most recent results on top quark physics at CDF are reported. Measurements of cross-section and mass are presented, and the status of single top quark production searches are discussed. The results obtained from probing various top quark properties are also presented.

  12. MER ARA pyroshock test results

    NASA Technical Reports Server (NTRS)

    Chang, Kurng Y.

    2004-01-01

    This paper presents the shock test results achieved in the MER ARA/brush motor pyroshock qualification. The results of MER flight system pyrofiring tests in comparison with the ARA shock test requirements are discussed herein. Alternate test methods were developed in an effort to qualify the critical MER equipment for adequate performance in the actual flight pyroshock condition.

  13. SLD results on B physics

    NASA Astrophysics Data System (ADS)

    Neal, H.

    2002-05-01

    Results on B-lifetimes, Bdo and Bso mixing, and B decay charm counting studies from the SLD experiment at the Stanford Linear Accelerator Center are presented. These results which exploit the small stable beam spots and high precision detector and the polarized electron beam are among the most precise measurements to date.

  14. MER ARA pyroshock test results

    NASA Technical Reports Server (NTRS)

    Chang, Kurng Y.

    2004-01-01

    This paper presents the shock test results achieved in the MER ARA/brush motor pyroshock qualification. The results of MER flight system pyrofiring tests in comparison with the ARA shock test requirements are discussed herein. Alternate test methods were developed in an effort to qualify the critical MER equipment for adequate performance in the actual flight pyroshock condition.

  15. Project "Freestyle": National Sites Results.

    ERIC Educational Resources Information Center

    Williams, Frederick

    Project "Freestyle" involved the development of prototypical television and print materials intended to combat sex-role stereotyping in career-related attitudes of nine to twelve-year-old children. This paper summarizes the results of the field evaluation of three pilot programs. With the aid of graphs, it reports the results in the following…

  16. Results: The Key to Renewal.

    ERIC Educational Resources Information Center

    Schmoker, Mike; Wilson, Richard B.

    1995-01-01

    The key to renewal is emphasis on results and the conditions favoring them. Short-term results are pivotal to improvement efforts, particularly for automobile plants and schools striving to apply Deming's TQM principles. Success depends on regular collaboration focused on well-defined, measurable student performance goals and frequent monitoring…

  17. Latest Electroweak Results from CDF

    SciTech Connect

    Lancaster, Mark

    2010-05-01

    The latest results in electroweak physics from proton anti-proton collisions at the Fermilab Tevatron recorded by the CDF detector are presented. The results provide constraints on parton distribution functions, the mass of the Higgs boson and beyond the Standard Model physics.

  18. Research without results: inadequate public reporting of clinical trial results.

    PubMed

    Gopal, Ravi K; Yamashita, Traci E; Prochazka, Allan V

    2012-05-01

    In order to increase transparency in the medical literature, the Food and Drug Administration (FDA) Modernization Act of 1997 and the FDA Amendment Act of 2007 required registration of all "applicable trials" with required "basic results" reporting. We evaluated the rate of compliance with the FDA mandatory results reporting in www.clinicaltrials.gov. All completed registered interventional studies that may be subject to FDA regulation, one year prior to required results reporting (October 2006 to September 2007, n = 1097) and during the two years after required reporting (October 2007 to September 2008 (07-08), n = 2231 and October 2008 to September 2009 (08-09), n = 2923). Downloading all 99,315 records from clinicaltrials.gov, we excluded all non-applicable studies. Results reporting increased from 6.8% (n = 75) prior to mandatory reporting to 19.1% (n = 427, p<.01) in 07-08 and 10.8% (n = 316, p<.01) in 08-09. The odds ratio for results reporting using the 06-07 time period as the reference was 3.31 (95% CI 2.54-4.32) for 07-08 and 1.74 (1.33-2.28) for 08-09. Of the 818 trials with results in clinicaltrials.gov, the rate of published articles found decreased from 60% (n = 45) in the year prior to required reporting to 33% (n = 140, p<.001) for 07-08 and 20% (n = 63, p<.001) for 08-09 time period. The majority of studies registered in clinicaltrials.gov are not required to report data. Of studies that may be required to report data, compliance with data reporting has improved. The clinicaltrials.gov website is not yet a comprehensive resource for study results. Published by Elsevier Inc.

  19. Pentaquarks: the latest experimental results

    SciTech Connect

    M. Battaglieri; R. De Vita; Valery Kubarovsky

    2006-01-01

    After the claim of the possible discovery of a pentaquark state, many experiments reported positive and negative results opening a discussion about the pentaquark existence. New experiments with high resolution and high statistics are needed in the reaction channels and for the kinematics of the positive results to solve the controversy. Jefferson Lab started a comprehensive program to search for pentaquark in photoproduction at threshold on proton and deuteron targets, collecting more than 10 times the existing statistics. The first experiment on the proton (g11) just finished to analyze the data, and the first results of the pentaquark search are reported here.

  20. Pentaquarks: the latest experimental results

    SciTech Connect

    Battaglieri, M.; De Vita, R.; Kubarovsky, V.

    2006-01-12

    After the claim of the possible discovery of a pentaquark state, many experiments reported positive and negative results opening a discussion about the pentaquark existence. New experiments with high resolution and high statistics are needed in the reaction channels and for the kinematics of the positive results to solve the controversy. Jefferson Lab started a comprehensive program to search for pentaquark in photoproduction at threshold on proton and deuteron targets, collecting more than 10 times the existing statistics. The first experiment on the proton (g11) just finished to analyze the data, and the first results of the pentaquark search are reported here.

  1. Some recent results from ICARUS

    SciTech Connect

    Farnese, Christian

    2015-07-15

    ICARUS T600 is the largest Liquid Argon (LAr) Time Projection Chamber (TPC) ever built. Thanks to the excellent spatial and calorimetric resolutions and the three-dimensional visualization capabilities ICARUS T600 represents a major milestone towards the realization of future LAr detectors for neutrino physics and for the search of rare events. Three new important results from the analysis of the events collected by this detector will be here shortly presented: in particular the new improved results on the electron neutrino search, the results on the determination of the muon momentum using the Multiple Scattering and the new LAr purification methods and improvements of the electron lifetime.

  2. Spacelab Life Sciences 1 results

    NASA Technical Reports Server (NTRS)

    Seddon, Rhea

    1992-01-01

    Results are presented from the experiments conducted by the first Shuttle/Spacelab mission dedicated entirely to the life sciences, the Spacelab Life Sciences 1, launched on June 5, 1991. The experiments carried out during the 9-day flight included investigations of changes in the human cardiovascular, pulmonary, renal/endocrine, blood, and vestibular systems that were brought about by microgravity. Results were also obtained from the preflight and postflight complementary experiments performed on rats, which assessed the suitability of rodents as animal models for humans. Most results verified, or expanded on, the accepted theories of adaptation to zero gravity.

  3. Contradictory results in interferon research

    NASA Technical Reports Server (NTRS)

    Sonnenfeld, G.

    1984-01-01

    Several reports on immunologically related interferon research, both in the areas of basic science and clinical research, are briefly reviewed, and it is noted that in many cases the results obtained are contradictory. It is argued, however, that the contradictory results are not surprising since interferon is a biological response modifier and has been known to produce opposite results even when the same interferon prepartion is used. It is emphasized that dosage, timing, route, and other experimental conditions are essential factors in planning immunological studies with interferon. Careful planning of future experiments with interferon should be required to prevent the possible generation of effects that are opposite to those expected.

  4. Results of Neptunium Disposal Testing

    SciTech Connect

    Walker, D.D.

    2003-10-07

    Researchers investigated the neutralization of neptunium solution from H-Canyon Tank 16.4 and the properties of the resulting slurry. This work investigated slurry properties from a single neutralization protocol and limited storage times.

  5. Recent KTeV Results

    SciTech Connect

    Richard Kessler

    2001-11-09

    Preliminary KTEV results are presented based on the 1997 data set, and include an improved measurement of R({epsilon}{prime}/{epsilon}), CPT tests, and precise measurements of {tau}{sub S} and {Delta}{sub m}.

  6. SMART-1/AMIE Camera Results

    NASA Astrophysics Data System (ADS)

    Josset, J.-L.; Beauvivre, S.; Cerroni, P.; de Sanctis, M. C.; Pinet, P.; Chevrel, S.; Langevin, Y.; Barucci, M. A.; Plancke, P.; Koschny, D.; Almeida, M.; Sodnik, Z.; Mancuso, S.; Hofmann, B. A.; Muinonen, K.; Shevchenko, V.; Shkuratov, Yu.; Ehrenfreund

    2007-03-01

    The Advanced Moon micro-Imager Experiment (AMIE), on board ESA SMART-1, the first European mission to the Moon, is an imaging system with scientific, technical and public outreach oriented objectives. This paper presents the first results obtained during

  7. The MUNU experiment : preliminary results

    NASA Astrophysics Data System (ADS)

    Busto, J.; MUNU Collaboration

    2000-06-01

    The MUNU collaboration has built a detector to study overlineνe - e - scattering at low energy. From the results we expect to increase the sensitivity to the neutrino magnetic moment. The detector used, a 1 m 3 T.P.C. surrounded by an anti-Compton scintillator, is running at the Bugey nuclear plant. Some preliminary results will be presented in the following.

  8. Analysis of EUVE Experiment Results

    NASA Technical Reports Server (NTRS)

    Horan, Stephen

    1996-01-01

    A series of tests to validate an antenna pointing concept for spin-stabilized satellites using a data relay satellite are described. These tests show that proper antenna pointing on an inertially-stabilized spacecraft can lead to significant access time through the relay satellite even without active antenna pointing. We summarize the test results, the simulations to model the effects of antenna pattern and space loss, and the expected contact times. We also show how antenna beam width affects the results.

  9. Electroweak results from the tevatron

    SciTech Connect

    Wood, D.

    1997-01-01

    Electroweak results are presented from the CDF and DO experiments based on data collected in recent runs of the Fermilab Tevatron Collider. The measurements include the mass and width of the W boson, the production cross sections of the W and Z bosons, and the W charge asymmetry. Additional results come from studies of events with pairs of electroweak gauge bosons and include limits on anomalous couplings.

  10. Results from experiment PS199

    NASA Astrophysics Data System (ADS)

    Agnello, M.; Ahmidouch, A.; Arvieux, J.; Bertini, R.; Birsa, R.; Bradamante, F.; Bressan, A.; Bressani, T.; Chiavassa, E.; Torre-Colautti, S. Dalla; De Marco, N.; Faivre, J. C.; Giorgi, M.; Heer, E.; Hess, R.; Iazzi, F.; Kunne, R. A.; Lamanna, M.; Luc, C. Lechanoine-Le; Macciotta, M. P.; Martin, A.; Mascarini, C.; Masoni, A.; Minetti, B.; Musso, A.; Penzo, A.; Perrot-Kunne, F.; Piccotti, A.; Puddu, G.; Rapin, D.; Serci, S.; Schiavon, P.; Tessarotto, F.

    1993-06-01

    The aim of the experiment PS199 was to study the spin structure of the charge-exchange overlinepp → overlinenn channel at LEAR. During 1990 we collected data at several energies to measure the analyzing power Aon and the spin depolarization parameter Donon.Results for Aon at all energies and first results for Donon at 905 MeV/c incident antiproton momentum are presented.

  11. QCD results from the Tevatron

    SciTech Connect

    C. Mesropian

    2002-07-12

    The Tevatron hadron collider provides the unique opportunity to study Quantum Chromodynamics, QCD, at the highest energies. The results summarized in this talk, although representing different experimental objects, as hadronic jets and electromagnetic clusters, serve to determine the fundamental input ingredients of QCD as well as to search for new physics. The authors present results from QCD studies at the Tevatron from Run 1 data, including jet and direct photon production, and a measurement of the strong coupling constant.

  12. Leaching of lead from computer printed wire boards and cathode ray tubes by municipal solid waste landfill leachates.

    PubMed

    Jang, Yong-Chul; Townsend, Timothy G

    2003-10-15

    The proper management of discarded electronic devices (E-waste) is an important issue for solid waste professionals because of the magnitude of the waste stream and because these devices often contain a variety of toxic metals (e.g., lead). While recycling of E-waste is developing, much of this waste stream is disposed in landfills. Leaching tests are frequently used to characterize the potential of a solid waste to leach when disposed in a landfill. In the United States, the Toxicity Characteristic Leaching Procedure (TCLP) is used to determine whether a solid waste is a hazardous waste by the toxicity characteristic. The TCLP is designed to simulate worse-case leaching in a landfill environment where the waste is co-disposed with municipal solid waste (MSW). While the TCLP is a required analysis from a regulatory perspective, the leachate concentrations measured may not accurately reflect the concentrations observed under typical landfill conditions. Another method that can be performed to assess the degree a pollutant might leach from a waste in a landfill is to use actual landfill leachate as the leaching solution. In this study, two lead-containing components found in electronic devices (printed wire boards from computers and cathode ray tubes from computers and televisions) were leached using the TCLP and leachates from 11 Florida landfills. California's Waste Extraction Test (WET) and the Synthetic Precipitation Leaching Procedure were also performed. The results indicated that the extractions using MSW landfill leachates resulted in lower lead concentrations than those by the TCLP. The pH of the leaching solution and the ability of the organic acids in the TCLP and WET to complex with the lead are factors that regulate the amount of lead leached.

  13. Assessment of cement kiln dust (CKD) for stabilization/solidification (S/S) of arsenic contaminated soils.

    PubMed

    Moon, Deok Hyun; Wazne, Mahmoud; Yoon, In-Ho; Grubb, Dennis G

    2008-11-30

    A stabilization/solidification (S/S) process for arsenic (As) contaminated soils was evaluated using cement kiln dust (CKD). Laboratory-prepared slurries, made of either kaolinite or montmorillonite, and field soils spiked with either As(3+) or As(5+) were prepared and treated with CKD ranging from 10 to 25 wt%. Sodium arsenite and sodium arsenate at 0.1 wt% were used to simulate arsenite (As(3+)) and arsenate (As(5+)) source contamination in soils, respectively. The effectiveness of treatment was evaluated at curing periods of 1- and 7-days based on the toxicity characteristic leaching procedure (TCLP). As-CKD and As-clay-CKD slurries were also spiked at 10 wt% to evaluate As immobilization mechanism using X-ray powder diffraction (XRPD) analyses. Overall, the TCLP results showed that only the As(5+) concentrations in kaolinite amended with 25 wt% CKD after 1 day of curing were less than the TCLP regulatory limit of 5mg/L. Moreover, at 7 days of curing, all As(3+) and As(5+) concentrations obtained from kaolinite soils were less than the TCLP criteria. However, none of the CKD-amended montmorillonite samples satisfied the TCLP-As criteria at 7 days. Only field soil samples amended with 20 wt% CKD complied with the TCLP criteria within 1 day of curing, where the source contamination was As(5+). XRPD and scanning electron microscopy (SEM)-energy dispersive X-ray spectroscopy (EDX) results showed that Ca-As-O and NaCaAsO(4).7.5H(2)O were the primary phases responsible for As(3+) and As(5+) immobilization in the soils, respectively.

  14. Planck 2015 results. I. Overview of products and scientific results

    NASA Astrophysics Data System (ADS)

    Planck Collaboration; Adam, R.; Ade, P. A. R.; Aghanim, N.; Akrami, Y.; Alves, M. I. R.; Argüeso, F.; Arnaud, M.; Arroja, F.; Ashdown, M.; Aumont, J.; Baccigalupi, C.; Ballardini, M.; Banday, A. J.; Barreiro, R. B.; Bartlett, J. G.; Bartolo, N.; Basak, S.; Battaglia, P.; Battaner, E.; Battye, R.; Benabed, K.; Benoît, A.; Benoit-Lévy, A.; Bernard, J.-P.; Bersanelli, M.; Bertincourt, B.; Bielewicz, P.; Bikmaev, I.; Bock, J. J.; Böhringer, H.; Bonaldi, A.; Bonavera, L.; Bond, J. R.; Borrill, J.; Bouchet, F. R.; Boulanger, F.; Bucher, M.; Burenin, R.; Burigana, C.; Butler, R. C.; Calabrese, E.; Cardoso, J.-F.; Carvalho, P.; Casaponsa, B.; Castex, G.; Catalano, A.; Challinor, A.; Chamballu, A.; Chary, R.-R.; Chiang, H. C.; Chluba, J.; Chon, G.; Christensen, P. R.; Church, S.; Clemens, M.; Clements, D. L.; Colombi, S.; Colombo, L. P. L.; Combet, C.; Comis, B.; Contreras, D.; Couchot, F.; Coulais, A.; Crill, B. P.; Cruz, M.; Curto, A.; Cuttaia, F.; Danese, L.; Davies, R. D.; Davis, R. J.; de Bernardis, P.; de Rosa, A.; de Zotti, G.; Delabrouille, J.; Delouis, J.-M.; Désert, F.-X.; Di Valentino, E.; Dickinson, C.; Diego, J. M.; Dolag, K.; Dole, H.; Donzelli, S.; Doré, O.; Douspis, M.; Ducout, A.; Dunkley, J.; Dupac, X.; Efstathiou, G.; Eisenhardt, P. R. M.; Elsner, F.; Enßlin, T. A.; Eriksen, H. K.; Falgarone, E.; Fantaye, Y.; Farhang, M.; Feeney, S.; Fergusson, J.; Fernandez-Cobos, R.; Feroz, F.; Finelli, F.; Florido, E.; Forni, O.; Frailis, M.; Fraisse, A. A.; Franceschet, C.; Franceschi, E.; Frejsel, A.; Frolov, A.; Galeotta, S.; Galli, S.; Ganga, K.; Gauthier, C.; Génova-Santos, R. T.; Gerbino, M.; Ghosh, T.; Giard, M.; Giraud-Héraud, Y.; Giusarma, E.; Gjerløw, E.; González-Nuevo, J.; Górski, K. M.; Grainge, K. J. B.; Gratton, S.; Gregorio, A.; Gruppuso, A.; Gudmundsson, J. E.; Hamann, J.; Handley, W.; Hansen, F. K.; Hanson, D.; Harrison, D. L.; Heavens, A.; Helou, G.; Henrot-Versillé, S.; Hernández-Monteagudo, C.; Herranz, D.; Hildebrandt, S. R.; Hivon, E.; Hobson, M.; Holmes, W. A.; Hornstrup, A.; Hovest, W.; Huang, Z.; Huffenberger, K. M.; Hurier, G.; Ilić, S.; Jaffe, A. H.; Jaffe, T. R.; Jin, T.; Jones, W. C.; Juvela, M.; Karakci, A.; Keihänen, E.; Keskitalo, R.; Khamitov, I.; Kiiveri, K.; Kim, J.; Kisner, T. S.; Kneissl, R.; Knoche, J.; Knox, L.; Krachmalnicoff, N.; Kunz, M.; Kurki-Suonio, H.; Lacasa, F.; Lagache, G.; Lähteenmäki, A.; Lamarre, J.-M.; Langer, M.; Lasenby, A.; Lattanzi, M.; Lawrence, C. R.; Le Jeune, M.; Leahy, J. P.; Lellouch, E.; Leonardi, R.; León-Tavares, J.; Lesgourgues, J.; Levrier, F.; Lewis, A.; Liguori, M.; Lilje, P. B.; Lilley, M.; Linden-Vørnle, M.; Lindholm, V.; Liu, H.; López-Caniego, M.; Lubin, P. M.; Ma, Y.-Z.; Macías-Pérez, J. F.; Maggio, G.; Maino, D.; Mak, D. S. Y.; Mandolesi, N.; Mangilli, A.; Marchini, A.; Marcos-Caballero, A.; Marinucci, D.; Maris, M.; Marshall, D. J.; Martin, P. G.; Martinelli, M.; Martínez-González, E.; Masi, S.; Matarrese, S.; Mazzotta, P.; McEwen, J. D.; McGehee, P.; Mei, S.; Meinhold, P. R.; Melchiorri, A.; Melin, J.-B.; Mendes, L.; Mennella, A.; Migliaccio, M.; Mikkelsen, K.; Millea, M.; Mitra, S.; Miville-Deschênes, M.-A.; Molinari, D.; Moneti, A.; Montier, L.; Moreno, R.; Morgante, G.; Mortlock, D.; Moss, A.; Mottet, S.; Münchmeyer, M.; Munshi, D.; Murphy, J. A.; Narimani, A.; Naselsky, P.; Nastasi, A.; Nati, F.; Natoli, P.; Negrello, M.; Netterfield, C. B.; Nørgaard-Nielsen, H. U.; Noviello, F.; Novikov, D.; Novikov, I.; Olamaie, M.; Oppermann, N.; Orlando, E.; Oxborrow, C. A.; Paci, F.; Pagano, L.; Pajot, F.; Paladini, R.; Pandolfi, S.; Paoletti, D.; Partridge, B.; Pasian, F.; Patanchon, G.; Pearson, T. J.; Peel, M.; Peiris, H. V.; Pelkonen, V.-M.; Perdereau, O.; Perotto, L.; Perrott, Y. C.; Perrotta, F.; Pettorino, V.; Piacentini, F.; Piat, M.; Pierpaoli, E.; Pietrobon, D.; Plaszczynski, S.; Pogosyan, D.; Pointecouteau, E.; Polenta, G.; Popa, L.; Pratt, G. W.; Prézeau, G.; Prunet, S.; Puget, J.-L.; Rachen, J. P.; Racine, B.; Reach, W. T.; Rebolo, R.; Reinecke, M.; Remazeilles, M.; Renault, C.; Renzi, A.; Ristorcelli, I.; Rocha, G.; Roman, M.; Romelli, E.; Rosset, C.; Rossetti, M.; Rotti, A.; Roudier, G.; Rouillé d'Orfeuil, B.; Rowan-Robinson, M.; Rubiño-Martín, J. A.; Ruiz-Granados, B.; Rumsey, C.; Rusholme, B.; Said, N.; Salvatelli, V.; Salvati, L.; Sandri, M.; Sanghera, H. S.; Santos, D.; Saunders, R. D. E.; Sauvé, A.; Savelainen, M.; Savini, G.; Schaefer, B. M.; Schammel, M. P.; Scott, D.; Seiffert, M. D.; Serra, P.; Shellard, E. P. S.; Shimwell, T. W.; Shiraishi, M.; Smith, K.; Souradeep, T.; Spencer, L. D.; Spinelli, M.; Stanford, S. A.; Stern, D.; Stolyarov, V.; Stompor, R.; Strong, A. W.; Sudiwala, R.; Sunyaev, R.; Sutter, P.; Sutton, D.; Suur-Uski, A.-S.; Sygnet, J.-F.; Tauber, J. A.; Tavagnacco, D.; Terenzi, L.; Texier, D.; Toffolatti, L.; Tomasi, M.; Tornikoski, M.; Tramonte, D.; Tristram, M.; Troja, A.; Trombetti, T.; Tucci, M.; Tuovinen, J.; Türler, M.; Umana, G.; Valenziano, L.; Valiviita, J.; Van Tent, F.; Vassallo, T.; Vibert, L.; Vidal, M.; Viel, M.; Vielva, P.; Villa, F.; Wade, L. A.; Walter, B.; Wandelt, B. D.; Watson, R.; Wehus, I. K.; Welikala, N.; Weller, J.; White, M.; White, S. D. M.; Wilkinson, A.; Yvon, D.; Zacchei, A.; Zibin, J. P.; Zonca, A.

    2016-09-01

    The European Space Agency's Planck satellite, which is dedicated to studying the early Universe and its subsequent evolution, was launched on 14 May 2009. It scanned the microwave and submillimetre sky continuously between 12 August 2009 and 23 October 2013. In February 2015, ESA and the Planck Collaboration released the second set of cosmology products based ondata from the entire Planck mission, including both temperature and polarization, along with a set of scientific and technical papers and a web-based explanatory supplement. This paper gives an overview of the main characteristics of the data and the data products in the release, as well as the associated cosmological and astrophysical science results and papers. The data products include maps of the cosmic microwave background (CMB), the thermal Sunyaev-Zeldovich effect, diffuse foregrounds in temperature and polarization, catalogues of compact Galactic and extragalactic sources (including separate catalogues of Sunyaev-Zeldovich clusters and Galactic cold clumps), and extensive simulations of signals and noise used in assessing uncertainties and the performance of the analysis methods. The likelihood code used to assess cosmological models against the Planck data is described, along with a CMB lensing likelihood. Scientific results include cosmological parameters derived from CMB power spectra, gravitational lensing, and cluster counts, as well as constraints on inflation, non-Gaussianity, primordial magnetic fields, dark energy, and modified gravity, and new results on low-frequency Galactic foregrounds.

  15. Planck 2015 results: I. Overview of products and scientific results

    DOE PAGES

    Adam, R.; Ade, P. A. R.; Aghanim, N.; ...

    2016-09-20

    The European Space Agency’s Planck satellite, which is dedicated to studying the early Universe and its subsequent evolution, was launched on 14 May 2009. It scanned the microwave and submillimetre sky continuously between 12 August 2009 and 23 October 2013. In February 2015, ESA and the Planck Collaboration released the second set of cosmology products based ondata from the entire Planck mission, including both temperature and polarization, along with a set of scientific and technical papers and a web-based explanatory supplement. This study gives an overview of the main characteristics of the data and the data products in the release,more » as well as the associated cosmological and astrophysical science results and papers. The data products include maps of the cosmic microwave background (CMB), the thermal Sunyaev-Zeldovich effect, diffuse foregrounds in temperature and polarization, catalogues of compact Galactic and extragalactic sources (including separate catalogues of Sunyaev-Zeldovich clusters and Galactic cold clumps), and extensive simulations of signals and noise used in assessing uncertainties and the performance of the analysis methods. The likelihood code used to assess cosmological models against the Planck data is described, along with a CMB lensing likelihood. Finally, scientific results include cosmological parameters derived from CMB power spectra, gravitational lensing, and cluster counts, as well as constraints on inflation, non-Gaussianity, primordial magnetic fields, dark energy, and modified gravity, and new results on low-frequency Galactic foregrounds.« less

  16. Planck 2013 results. I. Overview of products and scientific results

    NASA Astrophysics Data System (ADS)

    Planck Collaboration; Ade, P. A. R.; Aghanim, N.; Alves, M. I. R.; Armitage-Caplan, C.; Arnaud, M.; Ashdown, M.; Atrio-Barandela, F.; Aumont, J.; Aussel, H.; Baccigalupi, C.; Banday, A. J.; Barreiro, R. B.; Barrena, R.; Bartelmann, M.; Bartlett, J. G.; Bartolo, N.; Basak, S.; Battaner, E.; Battye, R.; Benabed, K.; Benoît, A.; Benoit-Lévy, A.; Bernard, J.-P.; Bersanelli, M.; Bertincourt, B.; Bethermin, M.; Bielewicz, P.; Bikmaev, I.; Blanchard, A.; Bobin, J.; Bock, J. J.; Böhringer, H.; Bonaldi, A.; Bonavera, L.; Bond, J. R.; Borrill, J.; Bouchet, F. R.; Boulanger, F.; Bourdin, H.; Bowyer, J. W.; Bridges, M.; Brown, M. L.; Bucher, M.; Burenin, R.; Burigana, C.; Butler, R. C.; Calabrese, E.; Cappellini, B.; Cardoso, J.-F.; Carr, R.; Carvalho, P.; Casale, M.; Castex, G.; Catalano, A.; Challinor, A.; Chamballu, A.; Chary, R.-R.; Chen, X.; Chiang, H. C.; Chiang, L.-Y.; Chon, G.; Christensen, P. R.; Churazov, E.; Church, S.; Clemens, M.; Clements, D. L.; Colombi, S.; Colombo, L. P. L.; Combet, C.; Comis, B.; Couchot, F.; Coulais, A.; Crill, B. P.; Cruz, M.; Curto, A.; Cuttaia, F.; Da Silva, A.; Dahle, H.; Danese, L.; Davies, R. D.; Davis, R. J.; de Bernardis, P.; de Rosa, A.; de Zotti, G.; Déchelette, T.; Delabrouille, J.; Delouis, J.-M.; Démoclès, J.; Désert, F.-X.; Dick, J.; Dickinson, C.; Diego, J. M.; Dolag, K.; Dole, H.; Donzelli, S.; Doré, O.; Douspis, M.; Ducout, A.; Dunkley, J.; Dupac, X.; Efstathiou, G.; Elsner, F.; Enßlin, T. A.; Eriksen, H. K.; Fabre, O.; Falgarone, E.; Falvella, M. C.; Fantaye, Y.; Fergusson, J.; Filliard, C.; Finelli, F.; Flores-Cacho, I.; Foley, S.; Forni, O.; Fosalba, P.; Frailis, M.; Fraisse, A. A.; Franceschi, E.; Freschi, M.; Fromenteau, S.; Frommert, M.; Gaier, T. C.; Galeotta, S.; Gallegos, J.; Galli, S.; Gandolfo, B.; Ganga, K.; Gauthier, C.; Génova-Santos, R. T.; Ghosh, T.; Giard, M.; Giardino, G.; Gilfanov, M.; Girard, D.; Giraud-Héraud, Y.; Gjerløw, E.; González-Nuevo, J.; Górski, K. M.; Gratton, S.; Gregorio, A.; Gruppuso, A.; Gudmundsson, J. E.; Haissinski, J.; Hamann, J.; Hansen, F. K.; Hansen, M.; Hanson, D.; Harrison, D. L.; Heavens, A.; Helou, G.; Hempel, A.; Henrot-Versillé, S.; Hernández-Monteagudo, C.; Herranz, D.; Hildebrandt, S. R.; Hivon, E.; Ho, S.; Hobson, M.; Holmes, W. A.; Hornstrup, A.; Hou, Z.; Hovest, W.; Huey, G.; Huffenberger, K. M.; Hurier, G.; Ilić, S.; Jaffe, A. H.; Jaffe, T. R.; Jasche, J.; Jewell, J.; Jones, W. C.; Juvela, M.; Kalberla, P.; Kangaslahti, P.; Keihänen, E.; Kerp, J.; Keskitalo, R.; Khamitov, I.; Kiiveri, K.; Kim, J.; Kisner, T. S.; Kneissl, R.; Knoche, J.; Knox, L.; Kunz, M.; Kurki-Suonio, H.; Lacasa, F.; Lagache, G.; Lähteenmäki, A.; Lamarre, J.-M.; Langer, M.; Lasenby, A.; Lattanzi, M.; Laureijs, R. J.; Lavabre, A.; Lawrence, C. R.; Le Jeune, M.; Leach, S.; Leahy, J. P.; Leonardi, R.; León-Tavares, J.; Leroy, C.; Lesgourgues, J.; Lewis, A.; Li, C.; Liddle, A.; Liguori, M.; Lilje, P. B.; Linden-Vørnle, M.; Lindholm, V.; López-Caniego, M.; Lowe, S.; Lubin, P. M.; Macías-Pérez, J. F.; MacTavish, C. J.; Maffei, B.; Maggio, G.; Maino, D.; Mandolesi, N.; Mangilli, A.; Marcos-Caballero, A.; Marinucci, D.; Maris, M.; Marleau, F.; Marshall, D. J.; Martin, P. G.; Martínez-González, E.; Masi, S.; Massardi, M.; Matarrese, S.; Matsumura, T.; Matthai, F.; Maurin, L.; Mazzotta, P.; McDonald, A.; McEwen, J. D.; McGehee, P.; Mei, S.; Meinhold, P. R.; Melchiorri, A.; Melin, J.-B.; Mendes, L.; Menegoni, E.; Mennella, A.; Migliaccio, M.; Mikkelsen, K.; Millea, M.; Miniscalco, R.; Mitra, S.; Miville-Deschênes, M.-A.; Molinari, D.; Moneti, A.; Montier, L.; Morgante, G.; Morisset, N.; Mortlock, D.; Moss, A.; Munshi, D.; Murphy, J. A.; Naselsky, P.; Nati, F.; Natoli, P.; Negrello, M.; Nesvadba, N. P. H.; Netterfield, C. B.; Nørgaard-Nielsen, H. U.; North, C.; Noviello, F.; Novikov, D.; Novikov, I.; O'Dwyer, I. J.; Orieux, F.; Osborne, S.; O'Sullivan, C.; Oxborrow, C. A.; Paci, F.; Pagano, L.; Pajot, F.; Paladini, R.; Pandolfi, S.; Paoletti, D.; Partridge, B.; Pasian, F.; Patanchon, G.; Paykari, P.; Pearson, D.; Pearson, T. J.; Peel, M.; Peiris, H. V.; Perdereau, O.; Perotto, L.; Perrotta, F.; Pettorino, V.; Piacentini, F.; Piat, M.; Pierpaoli, E.; Pietrobon, D.; Plaszczynski, S.; Platania, P.; Pogosyan, D.; Pointecouteau, E.; Polenta, G.; Ponthieu, N.; Popa, L.; Poutanen, T.; Pratt, G. W.; Prézeau, G.; Prunet, S.; Puget, J.-L.; Pullen, A. R.; Rachen, J. P.; Racine, B.; Rahlin, A.; Räth, C.; Reach, W. T.; Rebolo, R.; Reinecke, M.; Remazeilles, M.; Renault, C.; Renzi, A.; Riazuelo, A.; Ricciardi, S.; Riller, T.; Ringeval, C.; Ristorcelli, I.; Robbers, G.; Rocha, G.; Roman, M.; Rosset, C.; Rossetti, M.; Roudier, G.; Rowan-Robinson, M.; Rubiño-Martín, J. A.; Ruiz-Granados, B.; Rusholme, B.; Salerno, E.; Sandri, M.; Sanselme, L.; Santos, D.; Savelainen, M.; Savini, G.; Schaefer, B. M.; Schiavon, F.; Scott, D.; Seiffert, M. D.; Serra, P.; Shellard, E. P. S.; Smith, K.; Smoot, G. F.; Souradeep, T.; Spencer, L. D.; Starck, J.-L.; Stolyarov, V.; Stompor, R.; Sudiwala, R.; Sunyaev, R.; Sureau, F.; Sutter, P.; Sutton, D.; Suur-Uski, A.-S.; Sygnet, J.-F.; Tauber, J. A.; Tavagnacco, D.; Taylor, D.; Terenzi, L.; Texier, D.; Toffolatti, L.; Tomasi, M.; Torre, J.-P.; Tristram, M.; Tucci, M.; Tuovinen, J.; Türler, M.; Tuttlebee, M.; Umana, G.; Valenziano, L.; Valiviita, J.; Van Tent, B.; Varis, J.; Vibert, L.; Viel, M.; Vielva, P.; Villa, F.; Vittorio, N.; Wade, L. A.; Wandelt, B. D.; Watson, C.; Watson, R.; Wehus, I. K.; Welikala, N.; Weller, J.; White, M.; White, S. D. M.; Wilkinson, A.; Winkel, B.; Xia, J.-Q.; Yvon, D.; Zacchei, A.; Zibin, J. P.; Zonca, A.

    2014-11-01

    The European Space Agency's Planck satellite, dedicated to studying the early Universe and its subsequent evolution, was launched 14 May 2009 and has been scanning the microwave and submillimetre sky continuously since 12 August 2009. In March 2013, ESA and the Planck Collaboration released the initial cosmology products based on the first 15.5 months of Planck data, along with a set of scientific and technical papers and a web-based explanatory supplement. This paper gives an overview of the mission and its performance, the processing, analysis, and characteristics of the data, the scientific results, and the science data products and papers in the release. The science products include maps of the cosmic microwave background (CMB) and diffuse extragalactic foregrounds, a catalogue of compact Galactic and extragalactic sources, and a list of sources detected through the Sunyaev-Zeldovich effect. The likelihood code used to assess cosmological models against the Planck data and a lensing likelihood are described. Scientific results include robust support for the standard six-parameter ΛCDM model of cosmology and improved measurements of its parameters, including a highly significant deviation from scale invariance of the primordial power spectrum. The Planck values for these parameters and others derived from them are significantly different from those previously determined. Several large-scale anomalies in the temperature distribution of the CMB, first detected by WMAP, are confirmed with higher confidence. Planck sets new limits on the number and mass of neutrinos, and has measured gravitational lensing of CMB anisotropies at greater than 25σ. Planck finds no evidence for non-Gaussianity in the CMB. Planck's results agree well with results from the measurements of baryon acoustic oscillations. Planck finds a lower Hubble constant than found in some more local measures. Some tension is also present between the amplitude of matter fluctuations (σ8) derived from

  17. Data Mining Citizen Science Results

    NASA Astrophysics Data System (ADS)

    Borne, K. D.

    2012-12-01

    Scientific discovery from big data is enabled through multiple channels, including data mining (through the application of machine learning algorithms) and human computation (commonly implemented through citizen science tasks). We will describe the results of new data mining experiments on the results from citizen science activities. Discovering patterns, trends, and anomalies in data are among the powerful contributions of citizen science. Establishing scientific algorithms that can subsequently re-discover the same types of patterns, trends, and anomalies in automatic data processing pipelines will ultimately result from the transformation of those human algorithms into computer algorithms, which can then be applied to much larger data collections. Scientific discovery from big data is thus greatly amplified through the marriage of data mining with citizen science.

  18. ACTS: Technology Description and Results

    NASA Technical Reports Server (NTRS)

    Gedney, Richard T.; Schertler, Ronald; Gargione, Frank

    2000-01-01

    The ACTS Project was originated at NASA Glenn Research Center in the early 1980's to sponsor the development and application of technology that was intended to be used by the private sector. The program was formulated with the underlying philosophy of maintaining US leadership in satellite communications while focusing technology development for efficient use of the frequency spectrum. This report chronicles the execution and results of the program from the perspective of its technology managers, from inception through hardware and system development to on-orbit experiments and demonstrations of the technology. The first eight sections of the report discuss programmatic background, the specific satellite and ground terminal technology and the results generated by the program including industry relevance. A federally funded program of this type attracted strong advocates and adversaries and the resulting impact on the project schedule is also discussed. The last two sections are a list of useful acronyms and extensive references.

  19. Catastrophic disruption experiments: Recent results

    NASA Technical Reports Server (NTRS)

    Martelli, G.; Ryan, E. V.; Nakamura, A. M.; Giblin, I.

    1994-01-01

    This paper presents a review of the progress in the field of catastrophic disruption experiments over the past 4 years, since the publication of the review paper by Fujiwara et al. (1989). We describe the development of new techniques to produce shattering impacts relevant to the study of the collisional evolution of the asteroids, and summarize the results from numerous experiments which have been performed to date, using a variety of materials for both the impactor and the targets. Some of these, such as ice-on-ice, loose aggregates and pressurized targets, are quite new and have provided novel and exciting results. Some of the gaps existing previously in the data on fragment ejection-angle distributions, as well as translational and rotational velocity fields (including fine fragments) have been filled, and these new results will be surveyed.

  20. New NAS Parallel Benchmarks Results

    NASA Technical Reports Server (NTRS)

    Yarrow, Maurice; Saphir, William; VanderWijngaart, Rob; Woo, Alex; Kutler, Paul (Technical Monitor)

    1997-01-01

    NPB2 (NAS (NASA Advanced Supercomputing) Parallel Benchmarks 2) is an implementation, based on Fortran and the MPI (message passing interface) message passing standard, of the original NAS Parallel Benchmark specifications. NPB2 programs are run with little or no tuning, in contrast to NPB vendor implementations, which are highly optimized for specific architectures. NPB2 results complement, rather than replace, NPB results. Because they have not been optimized by vendors, NPB2 implementations approximate the performance a typical user can expect for a portable parallel program on distributed memory parallel computers. Together these results provide an insightful comparison of the real-world performance of high-performance computers. New NPB2 features: New implementation (CG), new workstation class problem sizes, new serial sample versions, more performance statistics.

  1. New results from FRECOPA analysis

    NASA Technical Reports Server (NTRS)

    Durin, Christian

    1993-01-01

    New results from the ongoing analysis of the FRECOPA's (FREnch COoperative PAssive payload) system hardware are discussed. FRECOPA (AO138) was one of the 57 experiments flown on the LDEF satellite. The experiment was located on the trailing edge (Tray B3) and was exposed to UV radiation (11,100 equivalent sun hours), approximately equal to 34,000 thermal cycles, higher vacuum levels than the leading edge, a low atomic oxygen flux, and minor doses of protons and electrons. Due to LDEF's extended mission (5.8 years), CNES decided to set up a team to analyze the FRECOPA system. Initial results were presented at the First Post-Retrieval Conference, June, 1991. The results obtained since then are summarized.

  2. KC-135 winglet flight results

    NASA Technical Reports Server (NTRS)

    Montoya, L. C.

    1981-01-01

    Three KC-135 winglet configurations were flight tested for cant/incidence angles of 15 deg/-4 deg, 15 deg/-2 deg, and 0 deg/-4 deg, as well as the basic wing. The flight results for the 15 deg/-4 deg and basic wing configurations confirm the wind tunnel predicted 7% incremental decrease in total drag at cruise conditions. The 15 deg/-4 configuration flight measured wing and winglet pressure distributions, loads, stability and control, flutter, and buffet also correlate well with predicted values. The only unexpected flight results as compared with analytical predictions is a flutter speed decrease for the 0 deg/-4 deg configuration. The 15 deg/-2 deg configuration results show essentially the same incremental drag reduction as the 15 deg/-4 deg configuration; however, the flight loads are approximately 30% higher for the 15 deg/-2 deg configuration. The drag data for the 0 deg/-4 deg configuration show only a flight drag reduction.

  3. Recent results from hadron colliders

    SciTech Connect

    Frisch, H.J. )

    1990-12-10

    This is a summary of some of the many recent results from the CERN and Fermilab colliders, presented for an audience of nuclear, medium-energy, and elementary particle physicists. The topics are jets and QCD at very high energies, precision measurements of electroweak parameters, the remarkably heavy top quark, and new results on the detection of the large flux of B mesons produced at these machines. A summary and some comments on the bright prospects for the future of hadron colliders conclude the talk. 39 refs., 44 figs., 3 tabs.

  4. MC-1 Nozzle Testing Results

    NASA Technical Reports Server (NTRS)

    Peters, Warren; Turner, James E. (Technical Monitor)

    2000-01-01

    This document is the presentation graphics which reviews the test results of the MC-1 Nozzle. The MC-1 Nozzle was originally designed for a low cost engine for an expendable booster. It was modified for use in the X-34 propulsion plant. With this design the nozzle and chamber are one piece. The presentation reviews the design goals, the materials and fabrication. The tests and results are reviewed in considerable detail. Included are pictures of the nozzle, and diagrams of the nozzle geometry

  5. Photometric commissioning results from MINERVA

    NASA Astrophysics Data System (ADS)

    Eastman, Jason D.; Swift, Jonathan; Beatty, Thomas G.; Bottom, Michael; Johnson, John; Wright, Jason; McCrady, Nate; Wittenmyer, Robert A.; Riddle, Reed L.; Plavchan, Peter; Muirhead, Philip Steven; Blake, Cullen; Zhao, Ming

    2015-01-01

    MINERVA is a robotic observatory with four 0.7 meter telescopes at Mt. Hopkins, Arizona, dedicated to precise photometry and radial velocity observations of bright, nearby stars for the discovery and characterization of small exoplanets. Here we present the first photometric results from MINERVA during commissioning at our test facility in Pasadena, California, demonstrating sub-millimag precision on 3-5 minute timescales over several hours. These results show that MINERVA is well-equipped to address its secondary science goal of searching for transits of known and newly discovered super-Earth exoplanets detected by radial velocity, including potential detections from the MINERVA spectrograph.

  6. First results from SAGE II

    SciTech Connect

    Abdurashitov, J.N.; Faizov, E.L.; Gavrin, V.N.

    1994-07-01

    The Russian-American Gallium solar neutrino Experiment (SAGE) began the second phase of operation (SAGE II) in September of 1992. Monthly measurements of the integral flux of solar neutrinos have been made with 55 tonnes of gallium. The K-peak results of the first five runs of SAGE II give a capture rate of 76{sub {minus}18}{sup +21} (stat) {sub {minus}7}{sup +5} (sys) SNU. combined with the SAGE I result, the capture rate is 74{sub {minus}12}{sup +13} (stat) {sub {minus}7}{sup +5} (sys) SNU. This represents only 56%--60% of the capture rate predicted by different Standard Solar Models.

  7. Results from Numerical General Relativity

    NASA Technical Reports Server (NTRS)

    Baker, John G.

    2011-01-01

    For several years numerical simulations have been revealing the details of general relativity's predictions for the dynamical interactions of merging black holes. I will review what has been learned of the rich phenomenology of these mergers and the resulting gravitational wave signatures. These wave forms provide a potentially observable record of the powerful astronomical events, a central target of gravitational wave astronomy. Asymmetric radiation can produce a thrust on the system which may accelerate the single black hole resulting from the merger to high relative velocity.

  8. LISA Optics Model: Early Results

    NASA Technical Reports Server (NTRS)

    Waluschka, Eugene; Scherr, Larry

    2003-01-01

    The Laser Interferometer Space Antenna (LISA) optics model is used to generate a synthetic data stream in the absence of gravitational waves. The simulation has the spacecraft in moving in their respective Keplerian orbits. The pointing of the spacecraft and station keeping about the proof masses is accomplished using a control scheme, which minimizes the disturbance on the proof masses in the sensitive direction. The resulting data stream gives an indication of the magnitude of instrumental noise due to pointing jitter and motions of the spacecraft with respect to the proof masses. Computational details are presented and the results discussed.

  9. Supersymmetry results at the Tevatron

    SciTech Connect

    Manca, Giulia; /Liverpool U.

    2005-05-01

    The Run II physics programme of the Tevatron is proceeding with more than 300 pb{sup -1} of analysis quality data, collected at a center-of-mass energy of 1.96 TeV. Searches for supersymmetric particles are starting to set new limits, improving over the LEP and Run I results and exploring new regions of parameter space. They present recent results in Supersymmetry with the upgraded CDF and D0 detectors and give some prospects for the future of these searches.

  10. Improved non-approximability results

    SciTech Connect

    Bellare, M.; Sudan, M.

    1994-12-31

    We indicate strong non-approximability factors for central problems: N{sup 1/4} for Max Clique; N{sup 1/10} for Chromatic Number; and 66/65 for Max 3SAT. Underlying the Max Clique result is a proof system in which the verifier examines only three {open_quotes}free bits{close_quotes} to attain an error of 1/2. Underlying the Chromatic Number result is a reduction from Max Clique which is more efficient than previous ones.

  11. Tau physics results from SLD

    SciTech Connect

    Daoudi, M.; SLD Collaboration

    1996-08-10

    Results on {tau} physics at SLD are presented. They are based on 4,316 {tau}-pair events selected from a 150 k Z{sup 0} data sample collected at the SLC. These results include measurements of the {tau} lifetime ({tau}{sub r} = 288.1 {+-} 6.1 {+-} 3.3 fs), the {tau} Michel parameters ({rho} = 0.71 {+-} 0.09 {+-} 0.04, {zeta} = 1.03 {+-} 0.36 {+-} 0.05, and {zeta}{delta} = 0.84 {+-} 0.27 {+-} 0.05), and the {tau} neutrino helicity (h{sub {nu}} = {minus}0.81 {+-} 0.18 {+-} 0.03).

  12. CDF results on electroweak physics

    SciTech Connect

    Frisch, H.J.; CDF Collaboration

    1993-11-01

    The second major run of the {bar p}p Fermilab Tevatron collider has just ended on June 1. The CDF detector has accumulated almost five times the data sample of its previous 1988--1989 run. We present new results on the ratio of W to Z boson production cross-sections and on the charge asymmetry in W decay. We give a progress report on the measurement of the W mass. New results from the 1988--1989 data on Drell-Yan production and on W {gamma} production are also presented.

  13. Spectroscopic commissioning results from MINERVA

    NASA Astrophysics Data System (ADS)

    Eastman, Jason D.; Johnson, Samson; Wang, Sharon; Sliski, David; Wilson, Maurice; Johnson, John A.; McCrady, Nate; Wittenmyer, Robert A.; Wright, Jason; Plavchan, Peter; Blake, Cullen; Beatty, Thomas G.

    2017-01-01

    MINERVA is a robotic observatory with four 0.7 meter telescopes at Mt. Hopkins, Arizona, dedicated to precise photometry and radial velocity observations of bright, nearby stars for the discovery and characterization of small exoplanets. Here we present the first radial velocity results from MINERVA during commissioning at the Fred Lawrence Whipple Observatory in Arizona, demonstrating m/s precision over month-long timescales. These results show that MINERVA is capable of achieving its primary science goal of finding super-Earths around the nearest, brightest stars.

  14. HADES results in elementary reactions

    NASA Astrophysics Data System (ADS)

    Ramstein, B.; Adamczewski-Musch, J.; Arnold, O.; Atomssa, E. T.; Behnke, C.; Berger-Chen, J. C.; Biernat, J.; Blanco, A.; Blume, C.; Böhmer, M.; Bordalo, P.; Chernenko, S.; Deveaux, C.; Dybczak, A.; Epple, E.; Fabbietti, L.; Fateev, O.; Fonte, P.; Franco, C.; Friese, J.; Fröhlich, I.; Galatyuk, T.; Garzón, J. A.; Gill, K.; Golubeva, M.; Guber, F.; Gumberidze, M.; Harabasz, S.; Hennino, T.; Hlavac, S.; Höhne, C.; Holzmann, R.; Ierusalimov, A.; Ivashkin, A.; Jurkovic, M.; Kämpfer, B.; Karavicheva, T.; Kardan, K.; Koenig, I.; Koenig, W.; Kolb, B. W.; Korcyl, G.; Kornakov, G.; Kotte, R.; Krása, A.; Krebs, E.; Kuc, H.; Kugler, A.; Kunz, T.; Kurepin, A.; Kurilkin, A.; Kurilkin, P.; Ladygin, V.; Lalik, R.; Lapidus, K.; Lebedev, A.; Lopes, L.; Lorenz, M.; Mahmoud, T.; Maier, L.; Mangiarotti, A.; Markert, J.; Metag, V.; Michel, J.; Müntz, C.; Münzer, R.; Naumann, L.; Palka, M.; Parpottas, Y.; Pechenov, V.; Pechenova, O.; Petousis, V.; Pietraszko, J.; Przygoda, W.; Rehnisch, L.; Reshetin, A.; Rost, A.; Rustamov, A.; Sadovsky, A.; Salabura, P.; Scheib, T.; Schmidt-Sommerfeld, K.; Schuldes, H.; Sellheim, P.; Siebenson, J.; Silva, L.; Sobolev, Yu. G.; Spataro, S.; Ströbele, H.; Stroth, J.; Strzempek, P.; Sturm, C.; Svoboda, O.; Tarantola, A.; Teilab, K.; Tlusty, P.; Traxler, M.; Tsertos, H.; Vasiliev, T.; Wagner, V.; Wendisch, C.; Wirth, J.; Wüstenfeld, J.; Zanevsky, Y.; Zumbruch, P.

    2014-11-01

    Recent results obtained with the HADES experimental set-up at GSI are presented with a focus on dielectron production and strangeness in pp and quasi-free np reactions. Perspectives related to the very recent experiment using the pion beam at GSI are also discussed.

  15. Diffractive physics results at CDF

    SciTech Connect

    Michele Gallinaro

    2003-12-18

    Forward detectors are described together with the first physics results from Run II. Using new data and dedicated diffractive triggers, a measurement of single diffractive dijet production rate, with particular focus on the diffractive structure function of the antiproton, is discussed. Upper limits on the exclusive dijet and {chi}{sub c}{sup 0} production cross sections are also presented.

  16. Direct Photon Results from CDF

    SciTech Connect

    Yang, Tingjun

    2013-01-01

    Direct (prompt) photon production is a field of very high interest in hadron colliders. It provides probes to search for new phenomena and to test QCD predictions. In this article, two recent cross-section results for direct photon production using the full CDF Run II data set are presented: diphoton production and photon production in association with a heavy quark.

  17. BAV-Results of Observations

    NASA Astrophysics Data System (ADS)

    Hübscher, Joachim

    2011-01-01

    This 67th compilation contains the results of visual and photographic observations of BAV-members mostly from the years 2009 and 2010. Here we publish altogether 468 minima and maxima of 152 eclipsing binaries and pulsating stars. The data were acquired by 13 observers.

  18. BAV-Results of Observations

    NASA Astrophysics Data System (ADS)

    Hübscher, Joachim

    2010-03-01

    This 64th compilation contains the results of visual and photographic observations of BAV-members from the years 2008 and 2009. Here we publish altogether 193 minima and maxima of 130 eclipsing binaries and pulsating stars. The data were acquired by 13 observers.

  19. Recent results from DORIS II

    SciTech Connect

    Bloom, E.D.

    1985-01-01

    This report contains a brief review of recent results from the ARGUS and Crystal Ball experiments at DORIS II, concentrating on UPSILON(1S) and UPSILON(2S) spectroscopy with a short foray into ..gamma gamma.. physics. 18 refs., 10 figs.

  20. The Planck Mission: Early Results

    SciTech Connect

    Marco Bersanelli

    2012-03-07

    The ESA Planck space mission, launched on May 14, 2009, is dedicated to high precision measurements of the cosmic microwave background (CMB), the first light of the universe, both in temperature and polarization. The satellite observes the full sky from a far-Earth orbit with two cryogenic instruments in the 30-850 GHz range at the focal plane of a 1.5-meter telescope. The primary objective of Planck is to measure with unprecedented precision the key cosmological parameters and to provide accurate tests of physics in the early universe. Planck has recently completed the fifth full-sky survey. The data analysis is underway. The first cosmology results are expected in early 2013 while a number of astrophysical results have been recently delivered to the community, including galactic and extragalactic astrophysics and a rich catalogue of radio and infrared sources. These results demonstrate the excellent in-orbit performance of the instruments and give excellent prospects for the forthcoming cosmological results.

  1. Recent Results from Hera Collider

    NASA Astrophysics Data System (ADS)

    Levonian, Sergey

    2013-11-01

    HERA collaborations H1 and ZEUS are publishing final analyses based on complete e±p statistics of ~ 0.5 fb-1 per experiment and using combinations of their data sets. Here selected recent results are presented from three areas: structure of the proton, searches for new physics and investigations of QCD phenomena at low Bjorken x.

  2. Results of Computer Based Training.

    ERIC Educational Resources Information Center

    1978

    This report compares the projected savings of using computer based training to conduct training for newly hired pilots to the results of that application. New Hire training, one of a number of programs conducted continuously at the United Airline Flight Operations Training Center, is designed to assure that any newly hired pilot will be able to…

  3. State Test Results Are Predictable

    ERIC Educational Resources Information Center

    Tienken, Christopher H.

    2014-01-01

    Out-of-school, community demographic and family-level variables have an important influence on student achievement as measured by large-scale standardized tests. Studies described here demonstrated that about half of the test score is accounted for by variables outside the control of teachers and school administrators. The results from these…

  4. Perseids 2006 results in Romania

    NASA Astrophysics Data System (ADS)

    Grigore, Valentin; Berinde, Stefan; Conu, Alexandru

    2007-12-01

    The results of 14th edition of the Perseide (Perseid) project organized by SARM are presented. PERSEIDE 2006 - the national astronomical camp for yought had two distinct parts: a summer astronomical school and a national Perseid network. Over 60 persons attended this event which lasted for four weeks and had both a training and observing component.

  5. Recent Results from the Tevatron

    SciTech Connect

    Demorden, L.

    1998-06-01

    We review recent results from fixed-target and collider experiments at the Fermilab Tevatron. Among the topics discussed are jet production rates, {alpha}{sub S} measurements, the {anti d}/{anti u} ratio in the proton sea, diffraction, heavy quark physics and leptoquark searches.

  6. Results of Computer Based Training.

    ERIC Educational Resources Information Center

    1978

    This report compares the projected savings of using computer based training to conduct training for newly hired pilots to the results of that application. New Hire training, one of a number of programs conducted continuously at the United Airline Flight Operations Training Center, is designed to assure that any newly hired pilot will be able to…

  7. Cuesta College School Performance Results.

    ERIC Educational Resources Information Center

    Cuesta Coll., San Luis Obispo, CA.

    This Cuesta College (California) document identifies key institutional effectiveness indicators that are used to assess institutional performance on specified educational processes. The key process of instruction/learning is measured through student performance results such as: (1) transfer rate (University of California/California State…

  8. FFTF startup: status and results

    SciTech Connect

    Noordhoff, B.H.; Moore, C.E.

    1980-03-01

    Startup testing on the Fast Flux Test Facility (FFTF) during the past three years has progressed beyond initial criticality toward the principal goal of power demonstration in 1980. An overview is presented of technical results to date and project plans to achieve power demonstration and complete the startup test program.

  9. Residual mercury content and leaching of mercury and silver from used amalgam capsules.

    PubMed

    Stone, M E; Pederson, E D; Cohen, M E; Ragain, J C; Karaway, R S; Auxer, R A; Saluta, A R

    2002-06-01

    The objective of this investigation was to carry out residual mercury (Hg) determinations and toxicity characteristic leaching procedure (TCLP) analysis of used amalgam capsules. For residual Hg analysis, 25 capsules (20 capsules for one brand) from each of 10 different brands of amalgam were analyzed. Total residual Hg levels per capsule were determined using United States Environmental Protection Agency (USEPA) Method 7471. For TCLP analysis, 25 amalgam capsules for each of 10 brands were extracted using a modification of USEPA Method 1311. Hg analysis of the TCLP extracts was done with USEPA Method 7470A. Analysis of silver (Ag) concentrations in the TCLP extract was done with USEPA Method 6010B. Analysis of the residual Hg data resulted in the segregation of brands into three groups: Dispersalloy capsules, Group A, retained the most Hg (1.225 mg/capsule). These capsules were the only ones to include a pestle. Group B capsules, Valliant PhD, Optaloy II, Megalloy and Valliant Snap Set, retained the next highest amount of Hg (0.534-0.770 mg/capsule), and were characterized by a groove in the inside of the capsule. Group C, Tytin regular set double-spill, Tytin FC, Contour, Sybraloy regular set, and Tytin regular set single-spill retained the least amount of Hg (0.125-0.266 mg/capsule). TCLP analysis of the triturated capsules showed Sybraloy and Contour leached Hg at greater than the 0.2 mg/l Resource Conservation and Recovery Act (RCRA) limit. This study demonstrated that residual mercury may be related to capsule design features and that TCLP extracts from these capsules could, in some brands, exceed RCRA Hg limits, making their disposal problematic. At current RCRA limits, the leaching of Ag is not a problem.

  10. CMS results on multijet correlations

    SciTech Connect

    Safronov, Grigory

    2015-04-10

    We present recent CMS measurements on multijet correlations using forward and low-p{sub T} jets, focusing on searches for BFKL and saturation phenomena. In pp collisions at √(s)=7 TeV, azimuthal correlations in dijets separated in rapidity by up to 9.4 units were measured. The results are compared to BFKL- and DGLAP-based predictions. In pp collisions at √(s)=8 TeV, cross sections for jets with p{sub T} > 21 GeV and |y| < 4.7, and for track-jets with p{sub T} > 1 GeV (minijets) are presented. The minijet results are sensitive to the bound imposed by the total inelastic cross section, and are compared to various models for taming the growth of the 2 → 2 cross section at low p{sub T}.

  11. Seeds in space experiment results

    NASA Technical Reports Server (NTRS)

    Alston, Jim A.

    1991-01-01

    Two million seeds of 120 different varieties representing 106 species, 97 genera, and 55 plant families were flown aboard the Long Duration Exposure Facility (LDEF). The seeds were housed on the space exposed experiment developed for students (SEEDS) tray in sealed canister number six and in two small vented canisters. The tray was in the F-2 position. The seeds were germinated and the germination rates and development of the resulting plants compared to the control seed that stayed in Park Seed's seed storage facility. The initial results are presented. There was a better survival rate in the sealed canister in space than in the storage facility at Park Seed. At least some of the seeds in each of the vented canisters survived the exposure to vacuum for almost six years. The number of observed apparent mutations was very low.

  12. Seeds in space experiment results

    NASA Technical Reports Server (NTRS)

    Alston, Jim A.

    1991-01-01

    Two million seeds of 120 different varieties representing 106 species, 97 genera, and 55 plant families were flown aboard the Long Duration Exposure Facility (LDEF). The seeds were housed on the space exposed experiment developed for students (SEEDS) tray in sealed canister number six and in two small vented canisters. The tray was in the F-2 position. The seeds were germinated and the germination rates and development of the resulting plants compared to the control seed that stayed in Park Seed's seed storage facility. The initial results are presented. There was a better survival rate in the sealed canister in space than in the storage facility at Park Seed. At least some of the seeds in each of the vented canisters survived the exposure to vacuum for almost six years. The number of observed apparent mutations was very low.

  13. Recent results from SND detector

    NASA Astrophysics Data System (ADS)

    Achasov, M. N.; Barnyakov, A. Yu.; Beloborodov, K. I.; Berdyugin, A. V.; Bogdanchikov, A. G.; Botov, A. A.; Dimova, T. V.; Druzhinin, V. P.; Golubev, V. B.; Kardapoltsev, L. V.; Kharlamov, A. G.; Koop, I. A.; Korol, A. A.; Koshuba, S. V.; Kovrizhin, D. P.; Kupich, A. S.; Martin, K. A.; Obrazovsky, A. E.; Pakhtusova, E. V.; Rogozina, E. V.; Serednyakov, S. I.; Shatunov, Yu. M.; Shtol, D. A.; Silagadze, Z. K.; Surin, I. K.; Usov, Yu. V.; Vasiljev, A. V.

    2016-05-01

    Recent results from the SND detector obtained in experiments at the VEPP-2000 e+e- collider are presented. The reactions e+e- → ηπ+π-, e+e- → K+K-, e+e- → π+π-π0, e+e- → ωπ0, e+e- → ωη have been studied in the energy region 1.05-2.00 GeV. The neutron and proton electromagnetic form factors have been measured in the energy range from the threshold up to 2 GeV. The result of the search of the rare process e+e- → η' is also presented.

  14. Galilean satellites - 1976 radar results

    NASA Technical Reports Server (NTRS)

    Campbell, D. B.; Chandler, J. F.; Ostro, S. J.; Pettengill, G. H.; Shapiro, I. I.

    1978-01-01

    In addition to a report of radar observations concerning the Galilean satellites made in the fall of 1976, Doppler results are presented from 1975 and January 1976. The primary objectives of the investigation conducted in 1976 are related to a study of each satellite at widely separated orbital phases and a close examination of the polarization of its scattered energy. The investigation included an observation of Io, Europa, Ganymede, and Callisto with the upgraded Arecibo S-band radar system on 11 nights irregularly distributed from 26 October 1976 to 7 December 1976. Several peculiarities revealed by the radar observations of the three outer Galilean satellites are related to large and possibly time-varying albedos, and the unexpected result that the circular polarization transmitted exceeds unity by a substantial amount.

  15. Top physics results from CDF

    SciTech Connect

    Gomez, Gervasio; /Cantabria Inst. of Phys.

    2005-05-01

    The top quark is by far the most massive fundamental particle observed so far, and the study of its properties is interesting for several reasons ranging from its possible special role in electroweak symmetry breaking to its sensitivity to physics beyond the Standard Model. They present recent top physics results from CDF based on 160-320 pb{sup -1} of p{bar p} collision data at {radical}s = 1.96 TeV. The t{bar t} cross section and the top mass have been measured in different decay channels and using different methods. they have searched for evidence of single top production, setting upper limits on its production rate. Other results shown in this conference include studies of the polarization of W bosons from top decays, a search for charged Higgs decaying from top, and a search for additional heavy t' quarks.

  16. Surveyor 3 Preliminary Science Results

    NASA Technical Reports Server (NTRS)

    1967-01-01

    Surveyor III soft-landed on the Moon at 00:04 GMT on April 20, 1967. Data obtained have significantly increased our knowledge of the Moon. The Surveyor III spacecraft was similar to Surveyor I; the only major change in scientific instrumentation was the addition of a soil mechanics surface sampler. Surveyor III results at this preliminary evaluation of data give valuable information about the relation between the surface skin of under-dense material responsible for the photometric properties and the deeper layers of material whose properties resemble those of ordinary terrestrial soils. In addition, they provide new insight into the relation between the general lunar surface as seen by Surveyor I and the interior of a large subdued crater. The new results have also contributed to our understanding of the mechanism of downhill transport. Many critical questions cannot, however, be answered until final reduction of experimental data.

  17. Forget about data, deliver results

    NASA Astrophysics Data System (ADS)

    Walter, Roland

    2015-12-01

    High-energy astrophysics space missions have pioneered and demonstrated the power of legacy data sets for generating new discoveries, especially when analysed in ways original researchers could not have anticipated. The only way to ensure that the data of present observatories can be effectively used in the future is to allow users to perform on-the-fly data analysis to produce straightforwardly scientific results for any sky position, time and energy intervals without requiring mission specific software or detailed instrumental knowledge. Providing a straightforward interface to complex data and data analysis makes the data and the process of generating science results available to the public and higher education and promotes the visibility of the investment in science to the society. This is a fundamental step to transmit the values of science and to evolve towards a knowledge society.

  18. Open cherry picker simulation results

    NASA Technical Reports Server (NTRS)

    Nathan, C. A.

    1982-01-01

    The simulation program associated with a key piece of support equipment to be used to service satellites directly from the Shuttle is assessed. The Open Cherry Picker (OCP) is a manned platform mounted at the end of the remote manipulator system (RMS) and is used to enhance extra vehicular activities (EVA). The results of simulations performed on the Grumman Large Amplitude Space Simulator (LASS) and at the JSC Water Immersion Facility are summarized.

  19. A-3 scientific results - extragalactic

    NASA Technical Reports Server (NTRS)

    Schwartz, D. A.

    1979-01-01

    The results of the HEAO A-3 experiment are summarized. Specific contributions of the experiment to extragalactic astronomy are emphasized. The discovery of relatively condensed X-ray emission in the cores of those clusters of galaxies which are dominated by a giant elliptical or cD galaxy, the discovery of extended X-ray emitting plasma in groups of galaxies, and the demonstration that BL Lac objects are a class of X-ray sources are among the topics discussed.

  20. Electroweak results from D0

    SciTech Connect

    Demarteau, M.; D0 Collaboration

    1993-05-01

    Preliminary results from D0 are presented on properties of the W{sup {plus_minus}} and Z{sup 0} electroweak gauge bosons, using final states containing electrons and muons. In particular, preliminary measurements of the W{sup {plus_minus}} and Z{sup 0} production cross sections with decay into final states containing electrons are shown and a status report on the determination of M{sub w}/M{sub z} is given.

  1. [Results of routine intraoperative cholangiography].

    PubMed

    Klima, S; Schyra, B

    1999-01-01

    Most bile duct injuries result from an incorrect interpretation of bile duct anatomy. In 500 laparoscopic cholecystectomies we used a modified technique of cholecystcholangiography. This method is very easy and needs only 5 minutes. We found variants of bile duct anatomy in 74 cases and occult bile duct stones in 20 patients. We recommend this method which decreases the risk of bile duct injuries and gives the opportunity to approximate the golden standard of conventional cholecystectomy.

  2. B0s Oscillation Results

    SciTech Connect

    Willocq, Stephane

    2002-08-09

    The authors review new studies of the time dependence of B{sub s}{sup 0}-{bar B}{sub s}{sup 0} mixing by the ALEPH, DELPHI and SLD Collaborations, with an emphasis on the different analysis methods used. Combining all available results yields a preliminary lower limit on the oscillation frequency of {Delta}m{sub s} > 14.4 ps{sup -1} at the 95% C.L.

  3. Cassini Imaging Results at Titan

    NASA Technical Reports Server (NTRS)

    McEwen, A.; Turtle, E.; Perry J.; Fussner, S.; Porco, C.; West, R.; Johnson, T.; Collins, G.; DelGenio, T.; Barbara, J.

    2005-01-01

    The Cassini Imaging Science Subsystem (ISS) images show striking albedo markings on the surface of Titan. In equatorial regions the albedo patterns have high contrast and exhibit prominent lineaments and linear/angular boundaries suggestive of tectonic influences or fracturing of brittle surficial materials. There are intriguing dark curving lines near the south pole. Here we present several working hypotheses to explain these patterns. We also briefly summarize atmospheric science results.

  4. Overview of recent ALICE results

    NASA Astrophysics Data System (ADS)

    Lakomov, Igor

    2016-10-01

    ALICE is one of the four largest LHC experiments. It is dedicated to the study of the properties of the deconfined state of matter formed at large energy densities in heavy-ion collisions — the Quark-Gluon Plasma. The ALICE Collaboration also participated in the pp and p-Pb data-taking periods at the LHC. An overview of recent ALICE results is presented for three collision systems: pp, p-Pb and Pb-Pb.

  5. Which Reconstruction Results are Significant?

    DTIC Science & Technology

    1980-05-01

    other significant result is due to Tutte [17]. Tutte’s Theorem: The characteristic polynomial of a graph can be reconstructed. Equivalently, two...hypomorphic graphs must have the same characteristic polynomial . Several points should be noted concerning this theorem: 1. The derivative of the...characteristic polynomial is the sum of the char- acteristic polynomials of the vertex-deleted subgraphs. Thus the characteristic polynomials of hypomorphic

  6. Recent results from Daya Bay

    NASA Astrophysics Data System (ADS)

    Chua, Ming-chung

    2016-11-01

    Utilizing powerful nuclear reactors as antineutrino sources, high mountains to provide ample shielding from cosmic rays in the vicinity, and functionally identical detectors with large target volume for near-far relative measurement, the Daya Bay Reactor Neutrino Experiment has achieved unprecedented precision in measuring the neutrino mixing angle θ13 and the neutrino mass squared difference |Δm2ee|. I will report the latest Daya Bay results on neutrino oscillations and light sterile neutrino search.

  7. Recent DIII-D results

    NASA Astrophysics Data System (ADS)

    Petersen, P. I.

    1994-07-01

    This paper summarizes the recent D3-D experimental results and the development of the relevant hardware systems. The D3-D program focuses on divertor solutions for next generation tokamaks such as International Thermo-nuclear Experimental Reactor (ITER) and Tokamak Physics Experiment (TPX), and on developing configurations with enhanced confinement and stability properties that will lead to a more compact and economical fusion reactor. The D3-D program carries out this research in an integrated fashion.

  8. Top quark results at CDF

    SciTech Connect

    Leone, S.; CDF Collaboration

    1996-08-01

    We present the latest results on the top quark obtained by the CDF experiment using a data sample of about 110 {ital pb}{sup -1} collected at the Fermilab Tevatron collider. We briefly describe the candidate events selection and then discuss the production cross section determination and the mass measurement. The study of two new decay channels (all hadronic and ``tau dilepton``) is also reported.

  9. Recent DIII-D results

    SciTech Connect

    Petersen, P.I.

    1994-07-01

    This paper summarizes the recent DIII-D experimental results and the development of the relevant hardware systems. The DIII-D program focuses on divertor solutions for next generation tokamaks such as International Thermo-nuclear Experimental Reactor (ITER) and Tokamak Physics Experiment (TPX), and on developing configurations with enhanced confinement and stability properties that will lead to a more compact and economical fusion reactor. The DIII-D program carries out this research in an integrated fashion.

  10. Ensemble Clustering for Result Diversification

    DTIC Science & Technology

    2012-11-01

    information on nutritional or health benefits of figs), with subtopics on nutritional/health bene- fits, recipes, varieties and growing figs. The LDA run ob...algorithm, the results can benefit more from improved clusterings. We also encountered some drawbacks with ensemble clusterings. First, we found it to be...quickly test this on 12 tb of data’. In Multilingual and Multimodal Information Access Evaluation. Lecture Notes in Computer Science 6360, pages 64–69

  11. Results from the B Factories

    SciTech Connect

    Bevan, A.; /Queen Mary, U. of London

    2009-01-08

    These proceedings are based on lectures given at the Helmholtz International Summer School Heavy Quark Physics at the Bogoliubov Laboratory of Theoretical Physics, Dubna, Russia, during August 2008. I review the current status of CP violation in B meson decays from the B factories. These results can be used, along with measurements of the sides of the Unitarity Triangle, to test the CKM mechanism. In addition I discuss experimental studies of B decays to final states with 'spin-one' particles.

  12. SPQR -- Spectroscopy: Prospects, Questions & Results

    SciTech Connect

    Pennington, Michael R.

    2014-06-01

    Tremendous progress has been made in mapping out the spectrum of hadrons over the past decade with plans to make further advances in the decade ahead. Baryons and mesons, both expected and unexpected, have been found, the results of precision experiments often with polarized beams, polarized targets and sometimes polarization of the final states. All these hadrons generate poles in the complex energy plane that are consequences of strong coupling QCD. They reveal how this works.

  13. Open cherry picker simulation results

    NASA Technical Reports Server (NTRS)

    Nathan, C. A.

    1982-01-01

    The simulation program associated with a key piece of support equipment to be used to service satellites directly from the Shuttle is assessed. The Open Cherry Picker (OCP) is a manned platform mounted at the end of the remote manipulator system (RMS) and is used to enhance extra vehicular activities (EVA). The results of simulations performed on the Grumman Large Amplitude Space Simulator (LASS) and at the JSC Water Immersion Facility are summarized.

  14. Releasing the Results of Investigations

    DTIC Science & Technology

    2010-03-01

    allow for lessons to be learned. RELEASING THE RESULTS OF INVESTIGATIONS On December 21, 2009, Gilbert Arenas – star basketball player for the...National Basketball Association’s Washington Wizards – brought four guns into the locker room at Verizon Center for what he alleged was a practical...joke.1 Earlier in the month Mr. Arenas and teammate Javaris Crittenton – with only two years of NBA experience – “got into an argument over a card

  15. NUREG-1150 risk assessment results

    SciTech Connect

    Benjamin, A.S.; Kunsman, D.M.; Boyd, G.J.; Lewis, S.R.; Amos, C.N.; Smith, L.N.

    1987-01-01

    The methodology developed in support of the US Nuclear Regulatory Commission's (NRC's) evaluation of severe accident risks in NUREG-1150 is noted. This paper discusses the results. The principal technical analyses for NUREG-1150 were performed at Sandia National Labs. under the Severe Accident Risk Reduction Program and the Accident Sequence Evaluation Program. The analyses have been completed so far for four reference plants: (a) a pressurized water reactor (PWR) with a dry, subatmospheric containment (Surry Unit 1), (b) a PWR with an ice condenser containment (Sequoyah Unit 1), (c) a boiling water reactor (BWR) with a Mark I containment (Peach Bottom Unit 2), and (d) a BWR with a Mark III containment (Grand Gulf Unit 1). A fifth NUREG-1150 plant, a PWR with a large, dry containment (Zion Unit 1), has been evaluated separately by Brookhaven National Lab. Sample risk results for one of the plants (Surry) are presented. The results for Sequoyah, Peach Bottom, and Grand Gulf are broadly compared with those for Surry.

  16. PACOSS program status and results

    NASA Technical Reports Server (NTRS)

    Richards, K. E., Jr.

    1989-01-01

    Future large space systems (LSS), both civilian and military, will have performance objectives which require stringent pointing accuracies, relatively fast retargeting times, short settling times, accurate dynamic shape requirements, or combinations thereof. Many of these structures will be large but lightweight and will exhibit a dense, low-frequency modal spectrum with significant content within the control bandwidth. Although it is possible in principle to achieve structural vibration control with purely active means, experience with complex structures has shown that the realities of plant model inaccuracies and real sensor and actuator dynamics frequently combine to produce disappointing results. It was shown that a combination of passive and active control will result in a simpler system which can be expected to be more reliable and less expensive than a corresponding system utilizing active control exclusively. The goals of the Passive and Active Control of Space Structures (PACOSS) program consist of a thorough investigation of the relative roles of passive active vibration control, and the development of validated means of vibration control. The program approach, representative system article, dynamic test article, and test status and results are outlined.

  17. Digital coincidence counting - initial results

    NASA Astrophysics Data System (ADS)

    Butcher, K. S. A.; Watt, G. C.; Alexiev, D.; van der Gaast, H.; Davies, J.; Mo, Li; Wyllie, H. A.; Keightley, J. D.; Smith, D.; Woods, M. J.

    2000-08-01

    Digital Coincidence Counting (DCC) is a new technique in radiation metrology, based on the older method of analogue coincidence counting. It has been developed by the Australian Nuclear Science and Technology Organisation (ANSTO), in collaboration with the National Physical Laboratory (NPL) of the United Kingdom, as a faster more reliable means of determining the activity of ionising radiation samples. The technique employs a dual channel analogue-to-digital converter acquisition system for collecting pulse information from a 4π beta detector and an NaI(Tl) gamma detector. The digitised pulse information is stored on a high-speed hard disk and timing information for both channels is also stored. The data may subsequently be recalled and analysed using software-based algorithms. In this letter we describe some recent results obtained with the new acquistion hardware being tested at ANSTO. The system is fully operational and is now in routine use. Results for 60Co and 22Na radiation activity calibrations are presented, initial results with 153Sm are also briefly mentioned.

  18. ISO: highlights of recent results

    NASA Astrophysics Data System (ADS)

    Metcalfe, L.; Salama, A.

    ESA's Infrared Space Observatory (ISO) mission, operating in the wavelength range from 2.5 to 240 microns, made over 26000 scientific observations during its 2.5 year operational lifetime. ISO's results broke new ground on all scales. New asteroid counts and improved asteroid thermophysical models augmented important advances in Solar System chemistry to comprise a striking body of results addressing our planetary system. In turn, parallels between the chemical composition of Solar System dust and dust around other stars revealed by the comparison of stellar spectra with cometary spectra, together with results on the incidence and stability of stellar disks, recall the birth of our Solar System and point to fundamental similarities with other star systems. Numerous important facts concerning the chemistry of the ISM have unfolded, such as the ubiquity of water and of the probably-organic carriers of the Unidentified Infrared Bands (UIBs). The large systematic body of data on galactic stars has permitted fascinating advances in the characterisation of important aspects of stellar evolution. Investigations of nearby normal galaxies complement template specimens of interacting galaxies. These in turn exemplify galaxy evolutionary processes in the early Universe associated with a huge burst of dust-obscured star formation at redshifts of just below one. This global surge of star formation has vital implications for the interpretation and explanation of major components of the Extragalactic Background Light (EBL) and for charting the global history of star formation and the relative importance of sources which derive their energy from accretion processes. Representative examples of key aspects of ISO's recent scientific output will be presented, once again affirming ISO's place at the forefront of successful space-borne astronomy missions.

  19. New Results From H1

    SciTech Connect

    Behnke, Olaf

    2005-10-06

    A summary is given of some of the recent measurements made by the H1 Collaboration in ep collisions at HERA. These include studies of electroweak parameters, of proton charm and beauty structure functions, of {alpha}s from the ratio of tri- to dijet cross sections, of diffractive scattering with dijets in the final state and of searches for strange pentaquarks. Also the first results from the analysis of HERA II e+p and e-p data are shown, including studies of events with isolated leptons and large missing transverse momentum and the first measurement of charged current cross sections with left handed polarised e- beams.

  20. Results from ARGO-YBJ

    SciTech Connect

    Iacovacci, M.

    2009-04-08

    The ARGO-YBJ experiment has been put in stable data taking at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300 m a.s.l.). In this paper we report a few selected results in Gamma-Ray Astronomy (Crab Nebula and Mrk421 observations, search for high energy tails of Gamma Ray Bursts) and Cosmic Ray Physics (Moon and Sun shadow observations, proton-air cross section measurement, preliminary measurement of the antiproton/proton ratio at TeV energies)

  1. Results from ARGO-YBJ

    NASA Astrophysics Data System (ADS)

    Iacovacci, M.

    2009-04-01

    The ARGO-YBJ experiment has been put in stable data taking at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300 m a.s.l.). In this paper we report a few selected results in Gamma-Ray Astronomy (Crab Nebula and Mrk421 observations, search for high energy tails of Gamma Ray Bursts) and Cosmic Ray Physics (Moon and Sun shadow observations, proton-air cross section measurement, preliminary measurement of the antiproton/proton ratio at TeV energies).

  2. Lightcurve Results for Eleven Asteroids

    NASA Astrophysics Data System (ADS)

    Gartrelle, Gordon M.

    2012-04-01

    Differential photometry techniques were used to develop lightcurves, rotation periods and amplitudes for eleven main-belt asteroids: 833 Monica, 962 Aslog, 1020 Arcadia, 1082 Pirola, 1097 Vicia, 1122 Lugduna, 1145 Robelmonte, 1253 Frisia, 1256 Normannia, 1525 Savolinna, and 2324 Janice. Ground-based observations from Badlands Observatory (BLO) in Quinn, SD, as well as the University of North Dakota Observatory (UND) in Grand Forks, ND, provided the data for the project. A search of the asteroid lightcurve database (LCDB) did not reveal any previously reported results for seven of the eleven targets in this study.

  3. Data bases for LDEF results

    NASA Technical Reports Server (NTRS)

    Bohnhoff-Hlavacek, Gail

    1993-01-01

    The Long Duration Exposure Facility (LDEF) carried 57 experiments and 10,000 specimens for some 200 LDEF experiment investigators. The external surface of LDEF had a large variety of materials exposed to the space environment which were tested preflight, during flight, and post flight. Thermal blankets, optical materials, thermal control paints, aluminum, and composites are among the materials flown. The investigations have produced an abundance of analysis results. One of the responsibilities of the Boeing Support Contract, Materials and Systems Special Investigation Group, is to collate and compile that information into an organized fashion. The databases developed at Boeing to accomplish this task is described.

  4. Recent QCD results from CDF

    SciTech Connect

    I. Gorelov

    2001-12-28

    Experimental results on QCD measurements obtained in recent analyses and based on data collected with CDF Detector from the Run 1b Tevatron running cycle are presented. The scope of the talk includes major QCD topics: a measurement of the strong coupling constant {alpha}{sub s}, extracted from inclusive jet spectra and the underlying event energy contribution to a jet cone. Another experimental object of QCD interest, prompt photon production, is also discussed and the updated measurements by CDF of the inclusive photon cross section at 630 GeV and 1800 GeV, and the comparison with NLO QCD predictions is presented.

  5. Results from the HARP Experiment

    SciTech Connect

    Catanesi, M. G.

    2008-02-21

    Hadron production is a key ingredient in many aspects of {nu} physics. Precise prediction of atmospheric {nu} fluxes, characterization of accelerator {nu} beams, quantification of {pi} production and capture for {nu}-factory designs, all of these would profit from hadron production measurements. HARP at the CERN PS was the first hadron production experiment designed on purpose to match all these requirements. It combines a large, full phase space acceptance with low systematic errors and high statistics. HARP was operated in the range from 3 GeV to 15 GeV. We briefly describe here the most recent results.

  6. Overview of ECRH experimental results

    NASA Astrophysics Data System (ADS)

    Lloyd, Brian

    1998-08-01

    A review of the present status of electron cyclotron heating and current drive experiments in toroidal fusion devices is presented. In addition to basic heating and current drive studies the review also addresses advances in wave physics and the application of electron cyclotron waves for instability control, transport studies, pre-ionization/start-up assist, etc. A comprehensive overview is given with particular emphasis on recent advances since the major review of Erckmann and Gasparino (1994) ( 36 1869), including results from the latest generation of high-power, high-frequency experiments.

  7. RSG Deployment Case Testing Results

    SciTech Connect

    Owsley, Stanley L.; Dodson, Michael G.; Hatchell, Brian K.; Seim, Thomas A.; Alexander, David L.; Hawthorne, Woodrow T.

    2005-09-01

    The RSG deployment case design is centered on taking the RSG system and producing a transport case that houses the RSG in a safe and controlled manner for transport. The transport case was driven by two conflicting constraints, first that the case be as light as possible, and second that it meet a stringent list of Military Specified requirements. The design team worked to extract every bit of weight from the design while striving to meet the rigorous Mil-Spec constraints. In the end compromises were made primarily on the specification side to control the overall weight of the transport case. This report outlines the case testing results.

  8. Results from the OPERA experiment

    NASA Astrophysics Data System (ADS)

    Di Crescenzo, A.; OPERA Collaboration

    2015-08-01

    The OPERA neutrino experiment was designed to perform a unique appearance measurement in the CNGS beam to confirm the oscillation mechanism in the atmospheric sector. Runs were successfully carried out from 2008 to 2012. The detection of τ leptons produced in ντ CC interactions and of their decays is accomplished exploiting the high spatial resolution of nuclear emulsions. Furthermore OPERA has good capabilities in detecting electron neutrino interactions, setting limits on the νμ →νe oscillation channel. The status of the analysis is reported together with updated results on both oscillation channels.

  9. Results from the EDGES Survey

    NASA Astrophysics Data System (ADS)

    van Zee, Liese; EDGES Team

    2017-03-01

    Results are presented from a deep imaging survey with the Spitzer Space Telescope which was designed to identify and measure the faint stellar populations around nearby galaxies. The Extended Disk Galaxy Exploration Science (EDGES) Survey includes a sample of 92 nearby galaxies with a range of morphological types and environments. The observations include a field-of-view of at least 5 times the optical size and are deep enough to detect stellar mass surface densities of several hundredths of a solar mass per square parsec. The observations reveal extended stellar features, such as stellar disks and stellar streams, around many of the target galaxies, as expected from hierarchical galaxy formation scenarios.

  10. Results from the MSSTA III

    NASA Astrophysics Data System (ADS)

    Boerner, P. F. X.; Martinez-Galarce, D. S.; Bay, T. J.; Barbee, T. W.; Talasaz, A. A.; Kumar, R.; Jain, P.; Hakim, N.

    2002-12-01

    The Multi-Spectral Solar Telescope Array was launched on April 30th, 2002 on a Terrier-boosted Black Brant at White Sands Missile Range. It used an array of multilayer-coated Ritchey-Chretien telescopes to image the solar corona at 150 Å, 171 Å, 180 Å, 195 Å and 211 Å. High-resolution chromospheric spectroheliograms at 1216 Å and 1550 Å were also obtained. We present the results of the mission and report on the status of the image calibration, as well as early analysis of active region loops using MSSTA data.

  11. Electroweak results from the Tevatron

    SciTech Connect

    Demarteau, M.

    1995-10-01

    Results from the CDF and D{O} experiments are presented on properties of the W{plus_minus} and Z{sup 0} gauge bosons using final states containing electrons and muons based on large integrated luminosities. In particular, measurements of the W{plus_minus} and Z{sup 0} production cross sections, the W-charge asymmetry and the CDF measurement of the W-mass are summarized. Gauge boson self interactions axe measured by studying di-gauge boson production and limits on anomalous gauge boson couplings axe discussed.

  12. Overview of recent ALICE results

    NASA Astrophysics Data System (ADS)

    Gunji, Taku

    2016-12-01

    The ALICE experiment explores the properties of strongly interacting QCD matter at extremely high temperatures created in Pb-Pb collisions at LHC and provides further insight into small-system physics in (high-multiplicity) pp and p-Pb collisions. The ALICE collaboration presented 27 parallel talks, 50 posters, and 1 flash talk at Quark Matter 2015 and covered various topics including collective dynamics, correlations and fluctuations, heavy flavors, quarkonia, jets and high pT hadrons, electromagnetic probes, small system physics, and the upgrade program. This paper highlights some of the selected results.

  13. Some Recent Results with CLAS

    SciTech Connect

    Maurik Holtrop

    2010-10-01

    The CLAS is a multipurpose, large acceptance magnetic spectrometer, instrumented with detector systems sensitive to charged and neutral particles. The experimental program at CLAS is aimed at furthering our understanding of hadronic and nuclear physics, through electron and photon scattering experiments, which cover a large range of topics, including meson and baryon spectroscopy, nucleon structure through elastic and deep inelastic scattering, nuclear transparency, nuclear correlations and nuclear structure. This talk will briefly describe the detector and the collaboration that uses it and will highlight some recent results.

  14. Recent results for Mark III

    SciTech Connect

    Brient, J.C.

    1987-12-01

    This paper presents recent results from the Mark III detector at SPEAR, in the open charm sector. The first topic discussed is the reanalysis of the direct measurement of the D hadronic branching fractions, where a detailed study has been made of the Cabibbo suppressed and multi-..pi../sup 0/'s D decays backgrounds in the double tag sample. Next, the Dalitz plot analysis of the D decays to K..pi pi.. is presented, leading to the relative fractions of three-body versus pseudoscalarvector decays. 7 refs., 5 figs.

  15. APS undulator radiation: First results

    SciTech Connect

    Cai, Z.; Dejus, R.J.; Hartog, P.D.

    1995-12-31

    The first undulator radiation has been extracted from the Advanced Photon Source (APS). The results from the characterization of this radiation are very satisfactory. With the undulator set at a gap of 15.8 mm (K=1.61), harmonics as high as the 17th were observed using a crystal spectrometer. The angular distribution of the third-harmonic radiation was measured, and the source was imaged using a zone plate to determine the particle beam emittance. The horizontal beam emittance was found to be 6.9 {plus_minus} 1.0 nm-rad, and the vertical emittance coupling was found to be less than 3%. The absolute spectral flux was measured over a wide range of photon energies, and it agrees remarkably well with the theoretical calculations based on the measured undulator magnetic field profile and the measured beam emittance. These results indicate that both the emittance of the electron beam and the undulator magnetic field quality exceed the original specifications.

  16. REMS Wind Sensor Preliminary Results

    NASA Astrophysics Data System (ADS)

    De La Torre Juarez, M.; Gomez-Elvira, J.; Navarro, S.; Marin, M.; Torres, J.; Rafkin, S. C.; Newman, C. E.; Pla-García, J.

    2015-12-01

    The REMS instrument is part of the Mars Science Laboratory payload. It is a sensor suite distributed over several parts of the rover. The wind sensor, which is composed of two booms equipped with a set of hot plate anemometers, is installed on the Rover Sensing Mast (RSM). During landing most of the hot plates of one boom were damaged, most likely by the pebbles lifted by the Sky Crane thruster. The loss of one wind boom necessitated a full review of the data processing strategy. Different algorithms have been tested on the readings of the first Mars year, and these results are now archived in the Planetary Data System (PDS), The presentation will include a description of the data processing methods and of the resulting products, including the typical evolution of wind speed and direction session-by-session, hour-by-hour and other kinds of statistics . A review of the wind readings over the first Mars year will also be presented.

  17. Wave results from OEDIPUS A

    NASA Astrophysics Data System (ADS)

    James, H. G.

    1993-10-01

    Active wave experiments in the 0-5 MHz range were carried out using a synchronized transmitter-receiver pair on the tethered sounding rocket payload OEDIPUS A. At full tether extension, the transmitter-receiver separation was 958 m. Although the transmitter power was modest (2.5 W), the receiver recorded strong propagation in tether-guided sheath-wave and plane-wave electromagnetic modes. After a summary of two principal wave results from the OEDIPUS experiment, these results are compared with related phenomena from the topside sounder spacecraft. The sheath-wave spectra clearly suggest that sheath waves are damped by electrostatic cyclotron waves. This is consistent with ideas in the topside-sounder literature that discuss how electrostatic waves transfer energy to the surrounding plasma. The transmission efficiency of slow Z-mode plane waves between the plasma and upper-hybrid resonance frequencies depends on guiding by density irregularities, which have produced related signatures in the monostatic sounder records.

  18. Unfavourable results in thumb reconstruction

    PubMed Central

    Kumta, Samir M.

    2013-01-01

    The history of thumb reconstruction parallels the history of hand surgery. The attributes that make the thumb unique, and that the reconstructive surgeon must assess and try to restore when reconstructing a thumb, are: Position, stability, strength, length, motion, sensibility and appearance. Deficiency in any of these attributes can reduce the utility of the reconstructed thumb. A detailed assessment of the patient and his requirements needs to be performed before embarking on a thumb reconstruction. Most unsatisfactory results can be attributed to wrong choice of procedure. Component defects of the thumb are commonly treated by tissue from adjacent fingers, hand or forearm. With refinements in microsurgery, the foot has become a major source of tissue for component replacement in the thumb. Bone lengthening, osteoplastic reconstruction, pollicisation, and toe to hand transfers are the commonest methods of thumb reconstruction. Unfavourable results can be classified as functional and aesthetic. Some are common to all types of procedures. However each type of reconstruction has its own unique set of problems. Meticulous planning and execution is essential to give an aesthetic and functionally useful thumb. Secondary surgeries like tendon transfers, bone grafting, debulking, arthrodesis, may be required to correct deficiencies in the reconstruction. Attention needs to be paid to the donor site as well. PMID:24501466

  19. Latest results from Double Chooz

    NASA Astrophysics Data System (ADS)

    Minotti, A.

    2017-01-01

    Double Chooz is a short-baseline neutrino disappearance experiment. It detects ν¯ e produced in the power plant of Chooz, France, where is located. The main goal of the experiment is the measurement of θ13 mixing angle and in 2011 for the first time the experiment observed an indication for a non zero value of such an oscillation parameter. The mixing angle was successively measured using only the far detector finding the best fit value of sin2(2θ13) = 0.090 -0.029 +0.032 . The near detector is under construction and will start data taking by the middle of 2014 allowing the reduction of the systematic errors. In this paper I make a review of the Double Chooz experiment, focusing in particular on the latest results of the measurement of the mixing angle θ13 relying on the neutron absorption on Gadolinium. I also present results proving the capability of Double Chooz to identify the ortho-positronium. This has been done in an event-by-event basis for the first time in a large liquid scintillator experiments, and can be an additional handle for the electron/positron discrimination in future detectors based on such technology.

  20. Results from the FDIRC prototype

    NASA Astrophysics Data System (ADS)

    Roberts, D. A.; Arnaud, N.; Dey, B.; Borsato, M.; Leith, D. W. G. S.; Nishimura, K.; Ratcliff, B. N.; Varner, G.; Va'vra, J.

    2014-12-01

    We present results from a novel Cherenkov imaging detector called the Focusing DIRC (FDIRC). This detector was designed as a prototype of the particle identification system for the SuperB experiment, and comprises 1/12 of the SuperB barrel azimuthal coverage with partial electronics implementation. The prototype was tested in the SLAC Cosmic Ray Telescope (CRT) which provides 3-D muon tracking with an angular resolution of 1.5 mrad, track position resolution of 5-6 mm, start time resolution of 70 ps, and a muon low-energy cutoff of 2 GeV provided by an iron range stack. The quartz focusing photon camera couples to a full-size BaBar DIRC bar box and is read out by 12 Hamamatsu H8500 MaPMTs providing 768 pixels. We used IRS2 waveform digitizing electronics to read out the MaPMTs. We present several results from our on-going development activities that demonstrate that the new optics design works very well, including: (a) single photon Cherenkov angle resolutions with and without chromatic corrections, (b) S/N ratio between the Cherenkov peak and background, which consists primarily of ambiguities in possible photon paths to a given pixel, (c) dTOP=TOPmeasured-TOPexpected resolutions, and (d) performance of the detector in the presence of high-rate backgrounds. We also describe data analysis methods and point out limits of the present performance.

  1. Gravitational microlensing searches and results

    SciTech Connect

    Alcock, C.

    1997-05-08

    Baryonic matter, in the form of Machos (MAssive Compact Halo Objects), might be a significant constituent of the dark matter that dominates the Milky Way. This article describes how surveys for Machos exploit the gravitational microlens magnification of extragalactic stars. The experimental searches for this effect monitor millions of stars, in some cases every night, looking for magnification events. The early results of these surveys indicate that Machos make up a significant fraction of the dark matter in the Milky Way, and that these objects have stellar masses. Truly substellar objects do not contribute much to the total. Additionally, the relatively high event rate towards the Galactic bulge seems to require that the bulge be elongated, and massive.

  2. Monsoon '90 - Preliminary SAR results

    NASA Technical Reports Server (NTRS)

    Dubois, Pascale C.; Van Zyl, Jakob J.; Guerra, Abel G.

    1992-01-01

    Multifrequency polarimetric synthetic aperture radar (SAR) images of the Walnut Gulch watershed near Tombstone, Arizona were acquired on 28 Mar. 1990 and on 1 Aug. 1990. Trihedral corner reflectors were deployed prior to both overflights to allow calibration of the two SAR data sets. During both overflights, gravimetric soil moisture and dielectric constant measurements were made. Detailed vegetation height, density, and water content measurements were made as part of the Monsoon 1990 Experiment. Preliminary results based on analysis of the multitemporal polarimetric SAR data are presented. Only the C-band data (5.7-cm wavelength) radar images show significant difference between Mar. and Aug., with the strongest difference observed in the HV images. Based on the radar data analysis and the in situ measurements, we conclude that these differences are mainly due to changes in the vegetation and not due to the soil moisture changes.

  3. Monsoon 1990: Preliminary SAR results

    NASA Technical Reports Server (NTRS)

    Vanzyl, Jakob J.; Dubois, Pascale; Guerra, Abel

    1991-01-01

    Multifrequency polarimetric synthetic aperture radar (SAR) images of the Walnut Gulch watershed near Tombstone, Arizona were acquired on 28 Mar. 1990 and on 1 Aug. 1990. Trihedral corner reflectors were deployed prior to both overflights to allow calibration of the two SAR data sets. During both overflights, gravimetric soil moisture and dielectric constant measurements were made. Detailed vegetation height, density, and water content measurements were made as part of the Monsoon 1990 Experiment. Preliminary results based on analysis of the multitemporal polarimetric SAR data are presented. Only the C-band data (5.7-cm wavelength) radar images show significant difference between Mar. and Aug., with the strongest difference observed in the HV images. Based on the radar data analysis and the in situ measurements, we conclude that these differences are mainly due to changes in the vegetation and not due to the soil moisture changes.

  4. PLACES Aircraft Experiment Test Results

    DTIC Science & Technology

    1982-05-01

    7 7 -7 II’ DNA-TR-81-223 ~ PLACES AIRCRAFT EXPERIMENT TEST RESULTS ESL, Incorporated 495 Java Drive...Incorporated AREA , WORK UNIT NUMBERS 495 Java Drive Task S99QAXHB-00007 Sunnyvale, California 94086 II. CONTROLLING OFFICE NAME AND ADDRESS 12...a, . C . . . ’. . ’’ " ’ ’ " ’ " ." "" " " "S """" " ", " " "" :""’" " ’ ,.U I p.00 I’. (v cu C. 2Sso7 012 22S 7571 linq ~ STR IE 0i aA 0 Fiue1-16 A

  5. Preliminary results of UCN τ

    NASA Astrophysics Data System (ADS)

    Pattie, Robert; UCNtau Collaboration

    2017-01-01

    There is currently a 4 σ discrepancy between measurements of the neutron lifetime performed using cold neutron beams and those performed with ultracold neutron (UCN) storage vessels. The UCN τ experiment uses an asymmetric magneto-gravitational UCN trap with in situ counting of surviving neutrons to measure the neutron lifetime. This design eliminates a major systematic of previous bottle experiments related to the loss of UCN on material trap walls and with unloading neutrons from the storage vessel. A new in situ detection system was used in the 2015-2016 run that was able to measure the population of surviving UCN at different heights in the trap, providing important information on spectral evolution. Understanding the behavior of quasi-bound UCN in a bottle experiment is essential to achieving a subsecond precision measurement of τn. We will present the preliminary results from the 2015-2016 data set and an update on the UCN τ experiment.

  6. Cryogenic Brush Seal Test Results

    NASA Technical Reports Server (NTRS)

    Proctor, Margaret P.; Walker, James F.

    1996-01-01

    Brush seals are compliant, contact seals that have long-life, low-leakage characteristics desirable for use in rocket engine turbopumps. 50.8-mm (2.0 inch) diameter brush seals with a nominal initial radial interference of 0.127-mm (0.005 inch) were tested in liquid nitrogen at shaft speeds up to 35,000 rpm and differential pressure loads up to 1.21 MPa (175 psi) per brush. The measured leakage rate of a single brush was 2-3 times less than that measured for a 12-tooth, 0.127-mm (0.005 inch) radial clearance labyrinth seal used as a baseline. Stage effects were studied and it was found that two brush seals with a large separation distance leaked less than two brushes tightly packed together. The maximum measured groove depth on the Inconel 718 rotor was 25.4 (mu)m (0.001 inch) after 4.31 hours of shaft rotation. The Haynes-25 bristles wore approximately 25.4-76.2 (mu)m (0.001-0.003 inch) under the same conditions. Three seal runner coatings, chromium carbide, Teflon impregnated chromium, and zirconium oxide, were tested in liquid hydrogen at 35,000 and 65,000 rpm with separate 50.8 mm diameter brush seals made of Haynes-25 bristles and having a nominal initial radial interference of 129 rpm. Two bare Inconel-718 rotors were also tested as a baseline. The test results revealed significant differences between the wear characteristics of the uncoated and coated seal runners. At both speeds the brush seal with the bare Inconel-718 seal runner exhibited significant bristle wear with excessive material transferring to the runner surface. In contrast, the coated seal runners inhibited the transfer and deposit of bristle material. The chromium carbide coating showed only small quantities of bristle material transferring to its surface. The Teflon impregnated chromium coating also inhibited material transfer and provided some lubrication. This coating, however, is self-sacrificing. The Teflon remained present on the low speed runner, but it was completely removed from the

  7. Results from the Magsat mission

    NASA Technical Reports Server (NTRS)

    Langel, R. A.

    1982-01-01

    The results of analyses of the data gathered by Magsat on the geomagnetic field, crustal magnetic anomalies, fields arising from external current systems, and in investigations of the earth's core, mantle, and core-mantle boundary are presented. A least squares potential function showed that the geomagnetic field was 30,000-50,000 nanoteslas at the Magsat altitude, while fields from external sources were 0-1000 nanoteslas and those from crustal sources 0-50 nanoteslas. Long-wavelength magnetic anomalies were correlated with tectonic features, sometimes reflecting undulations in the Curie isotherm at other times changes in the structure of the lower crust. Detailed anomaly maps from regional data analyses are provided, and possible future spacecraft missions for improving the resolution of contours and strengths of the anomalies are described.

  8. Data Assimilation Results from PLASMON

    NASA Astrophysics Data System (ADS)

    Jorgensen, A. M.; Lichtenberger, J.; Duffy, J.; Friedel, R. H.; Clilverd, M.; Heilig, B.; Vellante, M.; Manninen, J. K.; Raita, T.; Rodger, C. J.; Collier, A.; Reda, J.; Holzworth, R. H.; Ober, D. M.; Boudouridis, A.; Zesta, E.; Chi, P. J.

    2013-12-01

    VLF and magnetometer observations can be used to remotely sense the plasmasphere. VLF whistler waves can be used to measure the electron density and magnetic Field Line Resonance (FLR) measurements can be used to measure the mass density. In principle it is then possible to remotely map the plasmasphere with a network of ground-based stations which are also less expensive and more permanent than satellites. The PLASMON project, funded by the EU FP-7 program, is in the process of doing just this. A large number of ground-based observations will be input into a data assimilative framework which models the plasmasphere structure and dynamics. The data assimilation framework combines the Ensemble Kalman Filter with the Dynamic Global Core Plasma Model. In this presentation we will describe the plasmasphere model, the data assimilation approach that we have taken, PLASMON data and data assimilation results for specific events.

  9. [The Subretinal Implant - Clinical Results].

    PubMed

    Sachs, H G

    2016-11-01

    Since the end of the last century, subretinal electronic chips have been used to restore vision in patients blinded by degenerative retinal diseases such as retinitis pigmentosa. Various procedures have been suggested by different international scientific groups. The promising were the retinal-based concepts, for which there are now human data. The two distinct retina-based concepts not only differ in the site of stimulation (epi- or subretinal), but in their physiological concept. Whereas in camera-based systems (epiretinal, transchoroidal), eye movements cannot be used to detect objects, this is possible with subretinal access. It is as yet unclear as to whether this is relevant to restoring some kind of useful visual perception. This and other questions can only be answered by carefully designed human studies with sufficient patient numbers. Comparison of the visual results of the different groups is neither simple nor trivial. The implantations in each project need well trained and skilled retinal surgeons.

  10. Airfreight forecasting methodology and results

    NASA Technical Reports Server (NTRS)

    1978-01-01

    A series of econometric behavioral equations was developed to explain and forecast the evolution of airfreight traffic demand for the total U.S. domestic airfreight system, the total U.S. international airfreight system, and the total scheduled international cargo traffic carried by the top 44 foreign airlines. The basic explanatory variables used in these macromodels were the real gross national products of the countries involved and a measure of relative transportation costs. The results of the econometric analysis reveal that the models explain more than 99 percent of the historical evolution of freight traffic. The long term traffic forecasts generated with these models are based on scenarios of the likely economic outlook in the United States and 31 major foreign countries.

  11. Results from KASCADE-Grande

    NASA Astrophysics Data System (ADS)

    Bertaina, M.; Apel, W. D.; Arteaga-Velázquez, J. C.; Bekk, K.; Blümer, J.; Bozdog, H.; Brancus, I. M.; Buchholz, P.; Cantoni, E.; Chiavassa, A.; Cossavella, F.; Daumiller, K.; de Souza, V.; Di Pierro, F.; Doll, P.; Engel, R.; Engler, J.; Finger, M.; Fuhrmann, D.; Ghia, P. L.; Gils, H. J.; Glasstetter, R.; Grupen, C.; Haungs, A.; Heck, D.; Hörandel, J. R.; Huber, D.; Huege, T.; Isar, P. G.; Kampert, K.-H.; Kang, D.; Klages, H. O.; Link, K.; Łuczak, P.; Ludwig, M.; Mathes, H. J.; Mayer, H. J.; Melissas, M.; Milke, J.; Mitrica, B.; Morello, C.; Navarra, G.; Oehlschläger, J.; Ostapchenko, S.; Over, S.; Palmieri, N.; Petcu, M.; Pierog, T.; Rebel, H.; Roth, M.; Schieler, H.; Schröder, F. G.; Sima, O.; Toma, G.; Trinchero, G. C.; Ulrich, H.; Weindl, A.; Wochele, J.; Wommer, M.; Zabierowski, J.

    2012-11-01

    The KASCADE-Grande experiment, located at Karlsruhe Institute of Technology (Germany) is a multi-component extensive air-shower experiment devoted to the study of cosmic rays and their interactions at primary energies 1014-1018 eV. Main goals of the experiment are the measurement of the all-particle energy spectrum and mass composition in the 1016-1018 eV range by sampling charged (Nch) and muon (Nμ) components of the air shower. The method to derive the energy spectrum and its uncertainties, as well as the implications of the obtained result, is discussed. An overview of the analyses performed by KASCADE-Grande to derive the mass composition of the measured high-energy comic rays is presented as well.

  12. Airfreight forecasting methodology and results

    NASA Technical Reports Server (NTRS)

    1978-01-01

    A series of econometric behavioral equations was developed to explain and forecast the evolution of airfreight traffic demand for the total U.S. domestic airfreight system, the total U.S. international airfreight system, and the total scheduled international cargo traffic carried by the top 44 foreign airlines. The basic explanatory variables used in these macromodels were the real gross national products of the countries involved and a measure of relative transportation costs. The results of the econometric analysis reveal that the models explain more than 99 percent of the historical evolution of freight traffic. The long term traffic forecasts generated with these models are based on scenarios of the likely economic outlook in the United States and 31 major foreign countries.

  13. First year results from LOTIS

    NASA Astrophysics Data System (ADS)

    Williams, G. G.; Parks, H. S.; Ables, E.

    1997-11-01

    LOTIS (Livermore Optical Transient Imaging System) is a gamma-ray burst optical couterpart search experiment located near Lawrence Livermore National Laboratory in California. The system is linked to the GCN (GRB Coordinates Network) real-time coordinate distribution network and can respond to a burst trigger in 6-15 seconds. LOTIS has a total field-of-view of 17.4 degrees x 17.4 degrees with a completeness sensitivity of mv approximately 11 for a 10 second integration time. Since operations began in October 1996, LOTIS has responded to over 30 GCN/BATSE GRB triggers. Seven of these triggers are considered good events subject to the criteria of clear weather conditions, (lt) 60 S RESPONSE TIME, AND (gt)50% coverage of the final BATSE 3(sigma) error circle. We discuss results from the first year of LOTIS operations with an emphasis on the observations and analysis of GRB 971006 (BATSE trigger 6414) .

  14. The Recent Results from CMS

    NASA Astrophysics Data System (ADS)

    Kim, Tae Jeong

    The Large Hadron Collider (LHC) at CERN sitting astride the Franco-Swiss border near Geneva has accumulated the proton and proton collision data corresponding to an integrated luminosity of around 5 fb-1 at the center of mass energy 7 TeV in 2011 and around 20 fb-1 at 8 TeV in 2012 with the Compact Muon Solenoid (CMS) detector. The CMS detector is designed to investigate the wide range of particle physics including testing perturbative QCD and searching for Brout-Englert-Higgs (BEH) boson as well as new physics phenomena beyond the Standard Model. Observation of a new boson has moved the phase from hunting for the SM BEH boson to evaluating the consistency of this new particle with the SM expectation. The latest results from the CMS collaboration will be presented.

  15. Endoscopic retroauricular thyroidectomy: preliminary results.

    PubMed

    Byeon, Hyung Kwon; Holsinger, F Christopher; Tufano, Ralph P; Park, Jae Hong; Sim, Nam Suk; Kim, Won Shik; Choi, Eun Chang; Koh, Yoon Woo

    2016-01-01

    We sought to seek the potential role of endoscopic thyroidectomy with the retroauricular (RA) approach prior to future comparative study with the robotic RA thyroidectomy. Therefore, this study aims to verify the surgical feasibility of endoscopic RA thyroidectomy. Eighteen patients who underwent endoscopic RA thyroidectomy for clinically suspicious papillary thyroid carcinoma or benign lesions from January to December 2013 were retrospectively reviewed and analyzed. All endoscopic operations via RA or modified facelift approach were successfully performed, without any significant intraoperative complications or conversion to open surgery. Based on patient-reported outcome questionnaires, all patients were satisfied with their postoperative surgical scars. Endoscopic RA thyroidectomy is technically feasible and safe with satisfactory cosmetic results for patients where indicated.

  16. Latest jet results from Tevatron

    SciTech Connect

    Messina, Andrea

    2006-05-01

    This contribution reports preliminary jet results in p{bar p} collisions at {radical}s = 1.96 TeV from the CDF and D0 experiments. The jet inclusive cross section, measured using both the Midpoint and the K{sub T} jet clustering algorithm, is compared to next-to-leading order QCD prediction in different rapidity regions. The b-jet inclusive cross section measured exploiting the long lifetime and large mass of B hadrons is presented and compared to QCD prediction. A complementary measurement, using the large branching fraction of B hadrons into muons, is also described. The measurement of two-particle momentum correlation in jets is presented and compared to predictions.

  17. The Bigfoot Drive; Experimental Results

    NASA Astrophysics Data System (ADS)

    Baker, Kevin; Thomas, Cliff; Khan, Shahab; Casey, Daniel; Spears, Brian; Nora, Ryan; Munro, Davis; Eder, David; Milovich, Jose; Berger, Dick; Strozzi, David; Goyon, Clement; Turnbull, David; Ma, Tammy; Izumi, Nobuhiko; Benedetti, Robin; Millot, Marius; Celliers, Peter; Yeamans, Charles; Hatarik, Robert; Landen, Nino; Hurricane, Omar; Callahan, Debbie

    2016-10-01

    The Bigfoot platform was developed on the National Ignition Facility to investigate low convergence, high adiabat, high rhoR hotspot implosions. This platform was designed to be less susceptible to wall motion, LPI and CBET and to be more robust against capsule hydrodynamic instabilities. To date experimental studies have been carried out at two hohlraum scales, a 5.75 and 5.4 mm diameter hohlraum. We will present experimental results from these tuning campaigns including the shape vs. cone fraction, surrogacy comparisons of self-emission from the capsules vs. radiography of the imploding capsule and doped vs. undoped capsules. Prepared by LLNL under Contract DE-AC52-07NA27344.

  18. Wake Vortex Algorithm Scoring Results

    NASA Technical Reports Server (NTRS)

    Robins, R. E.; Delisi, D. P.; Hinton, David (Technical Monitor)

    2002-01-01

    This report compares the performance of two models of trailing vortex evolution for which interaction with the ground is not a significant factor. One model uses eddy dissipation rate (EDR) and the other uses the kinetic energy of turbulence fluctuations (TKE) to represent the effect of turbulence. In other respects, the models are nearly identical. The models are evaluated by comparing their predictions of circulation decay, vertical descent, and lateral transport to observations for over four hundred cases from Memphis and Dallas/Fort Worth International Airports. These observations were obtained during deployments in support of NASA's Aircraft Vortex Spacing System (AVOSS). The results of the comparisons show that the EDR model usually performs slightly better than the TKE model.

  19. Research Results and Information Update

    NASA Astrophysics Data System (ADS)

    2011-01-01

    Research Results Monsoon behavior balanced by glaciers Research Discovers Frequent Mutations of Chromatin Significant Progress in Water Photochemistry Research Structural signature in amorphous alloy formation and plastic deformation The neural basis of Drosophila larval light/darkness preference Important roles of brain-specific carnitine palmitoyltransferase and ceramide metabolism in leptin hypothalamic control of feeding Integrin activation and internalization on soft ECM as a mechanism of induction of stem cell differentiation by ECM elasticity Determination of electron pairing symmetry of iron-based superconductor FeSe Long-Range Topological Order in Metallic Glass Information Update List of Projects Jointly Funded by NSFC and CNRS in 2011 List of Projects Jointly Funded by NSFC and ESRC in 2011 List of Projects Jointly Funded by NSFC and RS in 2011 List of Projects Jointly Funded by NSFC and RSE in 2011 Funding of Major Program Projects in 2010 Funding of Key Program Projects in 2010

  20. GRAVITY acquisition camera: characterization results

    NASA Astrophysics Data System (ADS)

    Anugu, Narsireddy; Garcia, Paulo; Amorim, Antonio; Wiezorrek, Erich; Wieprecht, Ekkehard; Eisenhauer, Frank; Ott, Thomas; Pfuhl, Oliver; Gordo, Paulo; Perrin, Guy; Brandner, Wolfgang; Straubmeier, Christian; Perraut, Karine

    2016-08-01

    GRAVITY acquisition camera implements four optical functions to track multiple beams of Very Large Telescope Interferometer (VLTI): a) pupil tracker: a 2×2 lenslet images four pupil reference lasers mounted on the spiders of telescope secondary mirror; b) field tracker: images science object; c) pupil imager: reimages telescope pupil; d) aberration tracker: images a Shack-Hartmann. The estimation of beam stabilization parameters from the acquisition camera detector image is carried out, for every 0.7 s, with a dedicated data reduction software. The measured parameters are used in: a) alignment of GRAVITY with the VLTI; b) active pupil and field stabilization; c) defocus correction and engineering purposes. The instrument is now successfully operational on-sky in closed loop. The relevant data reduction and on-sky characterization results are reported.

  1. Initial Blackbeard power survey results

    SciTech Connect

    Murphy, T.; Devenport, J.; Holden, D.

    1996-06-01

    The Blackbeard broadband VHF radio receiver is in low-earth orbit aboard the ALEXIS satellite. The receiver has been used to measure the transmitted power in four VHF bands (55.2-75.8, 28.0-94.8, 132.3-152.2, and 107.7-166.0 MHz) over quiet and noisy parts of the earth. The authors present the results of the survey and discuss their implications. They find that there are remote ocean areas over which the observed spectrum is largely free of man-made interference, but that the spectrum over most of the earth is dominated by broadcast VHF signals. The signal characteristics observed over a given area are quite constant when observed at different times of day and at intervals of several weeks to months. It appears that in many cases the bulk of the signal power is coming from a small number of sources.

  2. Excavating Culture: Summary of Results

    PubMed Central

    Ceballo, Rosario; Chao, Ruth; Hill, Nancy E.; Le, Huynh-Nhu; Murry, Velma McBride; Pinderhughes, Ellen E.

    2013-01-01

    This is a companion paper to the seven articles also published in this special issue of Applied Developmental Science This paper summarizes and discusses the results from common analyses that were conducted on different datasets. The common analyses were designed to disentangle contextual and ethnic influences on parenting. Initial ethnic group differences were found in many of the datasets with multiple ethnic groups. Although certain ethnic group differences were explained by contextual influences, some ethnic group differences remained after contextual influences were controlled. Follow-up analyses with datasets containing cultural variables reveal within group differences in the degree to which ethnic differences in parenting may be accounted for by contextual factors versus culturally-specific processes. Methodological and theoretical implications are discussed and future directions are offered. PMID:24163576

  3. Huygens GCMS Results from Titan

    NASA Technical Reports Server (NTRS)

    Niemann, Hasso B.; Demick, Jaime; Kasprzak, Wayne; Atreya, Sushil; Owen, Tobias

    2007-01-01

    The Huygens Probe executed a successful entry, descent and impact on the Saturnian moon of Titan on January 14, 2005. The Gas Chromatograph Mass Spectrometer (GCMS) instrument conducted isotopic and compositional measurements throughout the two and one half hour descent from 146 km altitude, and on the surface for 69 minutes until loss of signal from the orbiting Cassini spacecraft. The GCMS incorporated a quadrupole mass filter with a secondary electron multiplier detection system. The gas sampling system provided continuous direct atmospheric composition measurements and batch sampling through three gas chromatographic (GC) columns, a chemical scrubber and a hydrocarbon enrichment cell. The GCMS gas inlet was heated to prevent condensation, and to evaporate volatiles from the surface after impact. Data products from the GCMS included altitude profiles of the major atmospheric constituents dinitrogen (N2) and methane (CH4), isotope ratios of 14N/15N, 12C/13C, and D/H, mole fractions of radiogenic argon (40Ar) and primordial argon (36Ar), and upper limits on the mole fractions of neon, krypton and xenon, which were found to be absent. Surface measurements confirmed the presence of ethane (C2H6) and cyanogen (C2N2). Later data products expanded atmospheric profiles to include the surface response of C2N2. C2H6, acetylene (C2H2), and carbon dioxide (CO2). More recent results include the profiles of benzene (C6H6) and molecular hydrogen (H2). The GCMS data are being further analyzed to obtain higher precision results and to identify other trace species ion the atmosphere and evaporating from the surface.

  4. SOFIS FTS EM test results

    NASA Astrophysics Data System (ADS)

    Soucy, Marc-Andre A.; Levesque, Luc E.; Tanii, Jun; Kawashima, Takahiro; Nakajima, Hideaki

    2003-04-01

    The Solar Occultation FTS for Inclined-orbit Satellite (SOFIS) is a solar occultation Fourier transform spectrometer developed by the Ministry of the Environment (MOE) in Japan for the Global Change Observation Mission-A1 (GCOM-A1) satellite. GCOM-A1 will be placed in a 650 km non-sun-synchronous orbit, with an inclination angle of 69 degrees. ABB-Bomem is a sub-contractor of NTSpace (NEC-Toshiba Space) for the design and manufacturing of the FTS Engineering Model of SOFIS. SOFIS measures the vertical profile of the atmospheric constituents with 0.2 cm-1 spectral resolution for the spectral range covering 3-13 μm. The atmospheric vertical resolution of SOFIS is 1 km. The target of SOFIS measurements is a global distribution of O3, HNO3, NO2, N2O, CH4, H2O, CO2, CFC-11, CFC-12, ClONO2, aerosol extinction, atmospheric pressure and temperature. NTSpace in Japan is the prime contractor of SOFIS. The spectrometer is an adapted version of the classical Michelson interferometer using an optimized optical layout and moving retro-reflectors. A solid-state laser diode operating at 1550 nm is used as metrology source of the interferometer. Its highly folded optical design results in a high performance instrument with a compact size. SOFIS FTS implements high performance control techniques to achieve outstanding speed stability of the moving mechanism. This paper describes the test activities of the SOFIS-FTS Engineering Model (EM) and preliminary results. The performances of the FTS are presented in terms of key parameters like signal-to-noise ratio, modulation efficiency and stability. Spectra acquired are shown and test methodology and analyses are presented. Lessons learned during assembly, integration and testing are described as well as improvements planned to be implemented in the Flight Model.

  5. Huygens GCMS Results from Titan

    NASA Technical Reports Server (NTRS)

    Niemann, Hasso B.; Demick, Jaime; Kasprzak, Wayne; Atreya, Sushil; Owen, Tobias

    2007-01-01

    The Huygens Probe executed a successful entry, descent and impact on the Saturnian moon of Titan on January 14, 2005. The Gas Chromatograph Mass Spectrometer (GCMS) instrument conducted isotopic and compositional measurements throughout the two and one half hour descent from 146 km altitude, and on the surface for 69 minutes until loss of signal from the orbiting Cassini spacecraft. The GCMS incorporated a quadrupole mass filter with a secondary electron multiplier detection system. The gas sampling system provided continuous direct atmospheric composition measurements and batch sampling through three gas chromatographic (GC) columns, a chemical scrubber and a hydrocarbon enrichment cell. The GCMS gas inlet was heated to prevent condensation, and to evaporate volatiles from the surface after impact. Data products from the GCMS included altitude profiles of the major atmospheric constituents dinitrogen (N2) and methane (CH4), isotope ratios of 14N/15N, 12C/13C, and D/H, mole fractions of radiogenic argon (40Ar) and primordial argon (36Ar), and upper limits on the mole fractions of neon, krypton and xenon, which were found to be absent. Surface measurements confirmed the presence of ethane (C2H6) and cyanogen (C2N2). Later data products expanded atmospheric profiles to include the surface response of C2N2. C2H6, acetylene (C2H2), and carbon dioxide (CO2). More recent results include the profiles of benzene (C6H6) and molecular hydrogen (H2). The GCMS data are being further analyzed to obtain higher precision results and to identify other trace species ion the atmosphere and evaporating from the surface.

  6. SMART-1 Payload First Results

    NASA Astrophysics Data System (ADS)

    Foing, B. H.; SMART-1 Science Technology Working Team

    We present first results from SMART-1's science and technology payload, with a total mass of some 19 kg, featuring many innovative instruments and advanced technologies. A miniaturised high-resolution camera (AMIE) for lunar surface imaging, a near-infrared point-spectrometer (SIR) for lunar mineralogy investigation, and a very compact X-ray spectrometer (D-CIXS) with a new type of detector and micro-collimator which will provide fluorescence spectroscopy and imagery of the Moon's surface elemental composition. The payload also includes an experiment (KaTE) aimed at demonstrating deep-space telemetry and telecommand communications in the X and Ka-bands, a radio-science experiment (RSIS), a deep space optical link (Laser-Link Experiment), using the ESA Optical Ground station in Tenerife, and the validation of a system of autonomous navigation (OBAN) based on image processing. SMART-1 lunar science investigations include studies of the chemical composition of the Moon, of geophysical processes (volcanism, tectonics, cratering, erosion, deposition of ices and volatiles) for comparative planetology, and high resolution studies in preparation for future steps of lunar exploration. The mission could address several topics such as the accretional processes that led to the formation of rocky planets, and the origin and evolution of the Earth-Moon system. The SMART-1 observations will be coordinated with Japanese missions Lunar-A and SELENE, to answer open questions about comparative planetology, the origin of the Earth --Moon system, the early evolution of life, the planetary environment and the existence of in-situ resources necessary to support human presence (e.g. water, oxygen). With their science and technology results, these missions can be considered as preparatory missions for future robotic and human exploration of the solar system.

  7. New Horizons Results at Charon

    NASA Astrophysics Data System (ADS)

    Buratti, B. J.; Stern, A.; Moore, J. M.; Weaver, H. A., Jr.; Grundy, W. M.; Hofgartner, J. D.; Spencer, J. R.; McKinnon, W. B.; Olkin, C.; Young, L. A.; Verbiscer, A.; Singer, K. N.; Robbins, S. J.; Ennico Smith, K.

    2016-12-01

    The New Horizons Spacecraft encountered dwarf planet Pluto and its system of moons on July 15, 2015 for the first detailed study of a Kuiper Belt Object (1). Pluto possesses a system of at least 5 moons, including Charon, which is the largest moon in relation to its primary, comprising 12% of the mass of Pluto. The results from the flyby show a world that has undergone a large resurfacing event on at least one of its hemispheres, perhaps from differentiation and subsequent freezing of a subsurface ocean. Charon has a complex system of faults, and regions of various ages based on crater counting statistics. It has no evidence for recent or ongoing geologic activity as Pluto does. Its visible geometric albedo is 0.41±0.02, with normal reflectances ranging from 0.2-0.7. A few isolated brighter areas exist. A northern polar cap of low-albedo red material may be formed from a newly discovered process in the Solar System: the capture of methane from Pluto's atmosphere and subsequent polymerization and accumulation of a complex lag deposit (2). Unlike Pluto, which has a surface covered primarily of methane and nitrogen, Charon's surface is composed of water ice, along with NH3-ice in some form (3). The substantial relief on the moon implies that ice extends below the surface. The bulk density of Pluto and Charon are similar (1). This result implies that if Charon was formed from an impact and reaccretion event involving Pluto and a second body (4), it is unlikely the two bodies were fully differentiated prior to the event. (1) Stern, S. A. et al. (2015). Science 350, 292. (2) Grundy, W. M. et al. (2016). Manuscript accepted at Nature. (3) Grundy, W. M. et al. (2016). Science 351, 1283. (4) Canup, R. M. (2011). Astron. J. 141, 35. Funded by NASA.

  8. Final report: survey and removal of radioactive surface contamination at environmental restoration sites, Sandia National Laboratories/New Mexico. Volume 2

    SciTech Connect

    Lambert, K.A.; Mitchell, M.M.; Jean, D.; Byrd, C.S.

    1997-09-01

    This report contains the Appendices A-L including Voluntary Corrective Measure Plans, Waste Management Plans, Task-Specific Health and Safety Plan, Analytical Laboratory Procedures, Soil Sample Results, In-Situ Gamma Spectroscopy Results, Radionuclide Activity Summary, TCLP Soil Sample Results, Waste Characterization Memoranda, Waste Drum Inventory Data, Radiological Risk Assessment, and Summary of Site-Specific Recommendations.

  9. Comparative Soot Diagnostics: Preliminary Results

    NASA Technical Reports Server (NTRS)

    Urban, David L.; Griffin, DeVon W.; Gard, Melissa Y.

    1997-01-01

    detected and suppressed. Prior to CSD, no combustion-generated particulate samples had been collected near the flame zone for well-developed microgravity flames. All of the extant data either came from drop tower tests and therefore only corresponded to the early stages of a fire or were collected far from the flame zone. The fuel sources in the drop tower tests were restricted to laminar gas-jet diffusion flames and very rapidly overheated wire insulation. The gas-jet tests indicated, through thermophoretic sampling, (2) that soot primaries and aggregates (groups of primary particles) in low-gravity may be significantly larger than those in normal gravity (1-g). This raises new scientific questions about soot processes as well as practical issues for particulate size sensitivity and detection alarm threshold levels used in on-orbit smoke detectors. Preliminary tests in the 2.2 second drop tower suggest that particulate generated by overheated wire insulation may be larger in low-g than in 1-g. Transmission Electron Microscope (TEM) grids downstream of the fire region in the Wire Insulation Flammability experiment as well as visual observation of long string-like aggregates, further confirm this suggestion. The combined impact of these limited results and theoretical predictions is that, as opposed to extrapolation from l-g data, direct knowledge of low-g combustion particulate is needed for more confident design of smoke detectors for spacecraft. This paper describes the operation and preliminary results of the CSD, a project conceived and developed at NASA Lewis Research Center. The CSD flight experiment was conducted in the Middeck Glovebox Facility (MGBX) on USMP-3. The project is support by NASA Headquarters Microgravity Science and Applications Division and Code Q. The results presented here are from the microgravity portion of the experiment, including the temporal response of the detectors and average sizes of the primary and aggregate particles captured on the

  10. [Results of the GECO series].

    PubMed

    Jenny, J -Y

    1996-12-01

    301 hip prostheses were implanted in patients under the age of 50 years. All patients were followed for a minimal period of 3 years or until revision. The young age is due to the etiologies: femoral head necrosis, congenital hip dislocation, post-traumatic arthrosis. The implanted prostheses were of different types: both components were usually cementless; most bearing surfaces were alumina-polyethylene, with a head diameter of 32 or 28 mm. Patients were followed for 3 to 18 years after implantation (mean: 7 years). At the last follow-up, 59 prostheses (20%) had been exchanged; 232 cases had a good functional result according to Merle d'Aubigné (77% of the whole series and 96% of the surviving prostheses). The non revised patients mostly had an excellent result with regard to pain, range of motion and gait, and 85% returned to work.The final X-ray examinations of surviving prostheses showed 22% acetabular and 25% femoral radiolucent lines without loosening, 7% severe acetabular polyethylene wear. 3% of acetabular and 9% of femoral prostheses had migrated, mostly during the first months after cementless implantation with subsequent stabilisation.Revisions were performed after 6 months to 16 years. Main reasons were primary instability of a cementless implant (14 cases), secondary instability of a cementless implant (18 cases) and loosening of a cemented implant (18 cases). The global survival rate is 67% after 10 years, and 47% after 14 years. The survival rate of cemented cups was higher than screwed uncemented cups after 12 years (73% vs 59% - p<0,05), and there was no difference with uncemented press-fit cups after 7 years (95% vs 90%). The survival rate of cemented cups was higher than uncoated uncemented cups after 13 years(67% vs 53% -p<0,05), and there was no difference with hydroxyapatite-coated uncemented cups after 5 years (97% vs 93%). There was no difference between survival rates of cemented or cementless femoral prosthesis after 12 years (63% vs 54

  11. Results of arthroscopic meniscal repair

    PubMed Central

    Orlowski, María Belén; Arroquy, Damián; Chahla, Jorge; Guiñazú, Jorge; Bisso, Martín Carboni; Vilaseca, Tomás

    2017-01-01

    Objectives: Currently the arthroscopic treatment of meniscal pathology has become one of the most common procedures in orthopedic practice and although in most cases meniscectomy is done, meniscal sutures are the treatment of choice when a reparable lesion is diagnosed, especially in young patients. It has been reported that the meniscal repair leads to a lower incidence of developing degenerative changes in the long-term when compared with meniscectomy and nonsurgical treatment of meniscal injuries. The aim of this study was to determine the success rate of meniscal repair achieved in our sports medicine practice. Methods: Between 2006 and 2015, 62 meniscal tears in 58 patients with a mean age of 31 years (range 15-58) were repaired. Mean follow-up was 52 months (range 6-120 months). In 16 patients (28%) was associated with arthroscopic ACL reconstruction. The repair techniques used included outside-in sutures, inside-out sutures, all-inside sutures and a combination of techniques. Failure of the repair was defined by the requirement for repeat knee arthroscopy and partial or subtotal meniscectomy. The indication of arthroscopic revision was based on the presence of mechanical symptoms, after the suture. Results: Failure of meniscus repair occurred in four patients (failure rate: 6.45%), one case was associated with ACL reconstruction (failure rate: 6.25%) and 3 had undergone isolated meniscal suture (failure rate: 8%). The average time for the reoperation was 15 months (4-24). We had no intraoperative complications. Conclusion: The reported failure rate of meniscal repair in stable knees varies between 12% and 43%, with reports that demonstrate a clinical success rate of 100%. In this study, we obtained a success rate of 93.5%. These results are slightly higher than those in the literature, which can be attributed to careful selection of patients and the fact that clinical success tends to be better than the assessed arthroscopically. In summary, we consider the

  12. Geophysical Model Research and Results

    SciTech Connect

    Pasyanos, M; Walter, W; Tkalcic, H; Franz, G; Flanagan, M

    2004-07-07

    Geophysical models constitute an important component of calibration for nuclear explosion monitoring. We will focus on four major topics: (1) a priori geophysical models, (2) surface wave models, (3) receiver function derived profiles, and (4) stochastic geophysical models. The first, a priori models, can be used to predict a host of geophysical measurements, such as body wave travel times, and can be derived from direct regional studies or even by geophysical analogy. Use of these models is particularly important in aseismic regions or regions without seismic stations, where data of direct measurements might not exist. Lawrence Livermore National Laboratory (LLNL) has developed the Western Eurasia and North Africa (WENA) model which has been evaluated using a number of data sets, including travel times, surface waves, receiver functions, and waveform analysis (Pasyanos et al., 2004). We have joined this model with our Yellow Sea - Korean Peninsula (YSKP) model and the Los Alamos National Laboratory (LANL) East Asia model to construct a model for all of Eurasia and North Africa. Secondly, we continue to improve upon our surface wave model by adding more paths. This has allowed us to expand the region to all of Eurasia and into Africa, increase the resolution of our model, and extend results to even shorter periods (7 sec). High-resolution models exist for the Middle East and the YSKP region. The surface wave results can be inverted either alone, or in conjunction with other data, to derive models of the crust and upper mantle structure. We are also using receiver functions, in joint inversions with the surface waves, to produce profiles directly under seismic stations throughout the region. In a collaborative project with Ammon, et al., they have been focusing on stations throughout western Eurasia and North Africa, while we have been focusing on LLNL deployments in the Middle East, including Kuwait, Jordan, and the United Arab Emirates. Finally, we have been

  13. Solar neutrinos: Interpretation of results

    NASA Astrophysics Data System (ADS)

    Smirnov, A. Yu.

    2003-04-01

    Recent SNO results give strong evidence that the solar neutrinos undergo flavor conversion. The main issue now is the identification of the mechanism of conversion. The LMA MSW solution with Δm2 = (5-7)·10 -5 eV 2, tan 2≡ = 0.35-0.45 looks rather plausible: it fits well the experimental data and our new theoretical prejudices. In the LMA case, KamLAND should see (0.5 - 0.7) reduced signal. VAC-QVO and LOW are accepted at about 3δ-level. The SMA solution is practically excluded. No sub-leading effects produced by Ue3 and admixture of sterile neutrino have been found. The fit becomes worse with an increase of Ue3 (for LMA) and a νs admixture. Still a (30 - 50)% presence of the sterile neutrino is allowed. Solutions based on the neutrino spin-flip in the magnetic fields of the Sun as well as on non-standard neutrino interactions give a good fit of the data. If KamLAND confirms LMA MSW, the spin-flip and non-standard interactions can be considered (and will be searched for) as sub-leading effects.

  14. First Physics Results at Babar

    SciTech Connect

    Lodovico, Francesca

    2000-12-01

    The BABAR detector, which operates at the SLAC PEP-II asymmetric e{sup +}e{sup -} collider at energies near the {Upsilon}(4S) resonance, started operation on the 26th of May 1999. They present the first study of sin2{beta}, with samples of B{sup 0} {yields} J/{psi} K{sub s}{sup 0} and B{sup 0} {yields} {psi}(2S) K{sub 2}{sup 0} decays, using 9.0 fb{sup -1} of data recorded between January and July 2000 at the {Upsilon}(4S) resonance and 0.8 fb{sup -1} recorded 40 MeV below the {Upsilon}(4S) resonance. A preliminary result of sin2{beta} = 0.12 {+-} 0.37(stat) {+-} 0.09(syst) was obtained. Details of the analysis are given. Moreover, they present measurements of charged and neutral B meson lifetimes and B{sup 0}{bar B}{sup 0} oscillation frequency.

  15. First Physics Results at Babar

    SciTech Connect

    Lodovico, Francesca

    2000-12-01

    The BABAR detector, which operates at the SLAC PEP-II asymmetric e{sup +}e{sup -} collider at energies near the {Upsilon} (4S) resonance, started operation on the 26th of May 1999. They present the first study of sin2{beta}, with samples of B{sup 0} {yields} J/{psi} K{sub s}{sup 0} and B{sup 0} {yields} {psi}(2S) K{sub s}{sup 0} decays, using 9.0 fb{sup -1} of data recorded between January and July 2000 at the {Upsilon}(4S) resonance and 0.8 fb{sup -1} recorded 40 MeV below the {Upsilon}(4S) resonance. A preliminary result of sin2{beta} = 0.12 {+-} 0.37(stat) {+-} 0.09(syst) was obtained. Details of the analysis are given. Moreover, they present measurements of charged and neutral B meson lifetimes and B{sup 0}{bar B}{sup 0} oscillation frequency.

  16. SAA drift:experimental results

    NASA Astrophysics Data System (ADS)

    Grigoryan, O. R.; Kudela, K.; Romashova, V. V.; Drozdov, A. Yu.

    According to the paleomagnetic analysis there are variations of Earth's magnetic field connected with magnetic momentum changing. Besides these variations affects on the trapped belt South Atlantic Anomaly (SAA) location. Indeed different observations including Space Shuttle short-time flights approved the existence SAA westward drift with speed 0.1-1.0 (deg/year) and northward drift with speed approximately 0.1 (deg/year). In this work we present the analysis of experimental results obtained in SINP MSU in 1972-2003 from different satellites. There were analyzed the fluxes of protons with energy > 50 MeV, gamma quanta with energy > 500 keV and neutrons with energy 0.1-1.0 MeV in SAA area and their maxima location. The data about fluxes were obtained onboard the orbital stations ``Salut-6'' (1979), MIR (1991, 1998) and ISS (2003) by the identical experimental equipment. The comparison of the data obtained during these two decades of investigations confirms the fact of the SAA westward drift. Moreover the same analysis of maximum flux location of electrons with hundreds keV energy (satellites ``Kosmos-484'' (1972), ``Interkosmos-17'' (1977) and ``Activny'' (``Interkosmos-24'', 1991)) confirmed not only the SAA westward drift but northward drift also.

  17. First photometry results from Gaia

    NASA Astrophysics Data System (ADS)

    Brown, Anthony

    2015-08-01

    An overview of the Gaia Photometric Processing is presented. The Gaia photometry consists of the white light (330-1050 nm) G-band, and low resolution spectrophotometry realized by two prisms dispersing all the light entering the field of view. One disperser - called BP for Blue Photometer- operates in the wavelength range 330-680 nm; the other - called RP for Red Photometer - covers the wavelength range 640-1050 nm. The light collected by BP and RP can also be integrated into two broad bands, G_BP and G_RP.This photometric data reduction is based on the overall principle of a self-calibrating system improved by iteration. The input data includes flux (G, G_BP, G_RP) and the low-resolution spectral data. The calibration models and algorithms used are described. Initial validation results are shown which indicate the photometric quality of the preliminary calibrated data. Expectations for the quality of the photometric data to be included in the first public data release (mid-2016) are discussed.

  18. EUPORIAS: plans and preliminary results

    NASA Astrophysics Data System (ADS)

    Buontempo, C.

    2013-12-01

    Recent advances in our understanding and ability to forecast climate variability have meant that skilful predictions are beginning to be routinely made on seasonal to decadal (s2d) timescales. Such forecasts have the potential to be of great value to a wide range of decision-making, where outcomes are strongly influenced by variations in the climate. In 2012 the European Commission funded EUPORIAS, a four year long project to develop prototype end-to-end climate impact prediction services operating on a seasonal to decadal timescale, and assess their value in informing decision-making. EUPORIAS commenced on 1 November 2012, coordinated by the UK Met Office leading a consortium of 24 organisations representing world-class European climate research and climate service centres, expertise in impacts assessments and seasonal predictions, two United Nations agencies, specialists in new media, and commercial companies in climate-vulnerable sectors such as energy, water and tourism. The poster describes the setup of the project, its main outcome and some of the very preliminary results.

  19. VERITAS: Performance and Latest Results

    NASA Astrophysics Data System (ADS)

    Ong, Rene A.; VERITAS Collaboration

    2008-03-01

    VERITAS (Very Energetic Radiation Imaging Telescope Array System) is a major, newly-comissioned observatory for gamma-ray astronomy in the 100 GeV - 50 TeV energy band. The observatory, located on Mt. Hopkins, AZ, consists of four 12m-diameter telescopes that detect very high-energy gamma rays via the imaging atmospheric Cherenkov technique. VERITAS became fully operational in Spring 2007 and has embarked on a broad program of observations of galactic and extragalactic sources of interest, particularly pulsar nebulae, SNRs, X-ray binaries, AGN, and GRBs. In addition, VERITAS is carrying out sensitive studies of signatures for new physics, such as dark matter annihilations. This talk will outline the main characteristics and performance attributes of VERITAS and will summarize the major results from the observatory in the last six months. VERITAS is operated by a collaboration of scientists from institutions in the U.S., Canada, the U.K., and Ireland. Funding is provided by the NSF, DOE, and Smithsonian Institution in the U.S., NSERC in Canada, PPARC in the U.K. and National Science Foundation Ireland.

  20. Results from p p colliders

    SciTech Connect

    Huth, J.

    1991-08-01

    Recent results {bar p}p colliders are presented. From elastic scattering experiments at the Tevatron, an average value of {sigma}{sub tot} = 72.1{plus minus}2 mb is reported, along with a new measurement of {rho} = 0.13 {plus minus} 0.7. New measurements of jet direct photon and high p{sub t} W and Z production are compared to more precise, higher order predictions from perturbative QCD. Recently available data on the W mass and width give combined values for M{sub W} = 80.14{plus minus}0.27 GeV/c{sup 2}, and {Gamma}(W) =2. 14 {plus minus} 0.08 GeV. From electroweak radiative corrections and M{sub W}, one finds M{sub top} = 130{plus minus}40 GeV/c{sup 2}, with a 95% C.L. upper limit at 210 GeV/c{sup 2}. Current limits on M{sub top} are presented, along with a review of the prospects for top discovery. From jet data there is no evidence of quark substructure down to the distance scale of 1.4 {times} 10{sup {minus}17} cm, nor is there evidence for supersymmetry or heavy gauge bosons at {bar p}p colliders, allowing lower limits on M{sub W}, > 520 GeV/c{sup 2} and M{sub Z} 412 GeV/c{sup 2}. 66 refs., 26 figs.

  1. Latest results from jet measurements

    NASA Astrophysics Data System (ADS)

    Bruna, Elena

    2009-10-01

    A first stage in understanding the phenomenon of jet quenching in the hot and dense nuclear matter has been successfully reached at RHIC through measurements of inclusive hadron suppression and di-hadron azimuthal correlations. A significant step forward in this field is being obtained by full jet reconstruction in heavy-ion collisions, that in principle should give access to the energy of the hard scattering independent of the presence of the medium and should enable the study of jet quenching at the partonic level. Due to the intrinsic difficulties of such a measurement in the high multiplicity environment, this is an innovative analysis and the first results of full jet reconstruction were obtained only over the last year thanks to the recently developed jet-finding techniques. We discuss the current methods to treat the large background, which is the main critical aspect that makes full jet reconstruction a challenge at RHIC. New measurements directed to address the mechanisms of partonic energy loss in hot QCD matter are presented. These measurements include the ratio of inclusive jet cross sections in Au+Au and p+p and the comparison of jet fragmentation functions in Au+Au and p+p.

  2. Results of the PALADIN experiment

    NASA Astrophysics Data System (ADS)

    Weir, J. T.; Orzechowski, T. J.; Miller, J. L.; Chong, Y. P.; Chambers, F.; Deis, G. A.; Paul, C.; Prosnitz, D.; Scharlemann, E. T.; Halbach, K.

    1989-03-01

    PALADIN is a single pass, free laser amplifier located at the Lawrence Livermore National Laboratory. This free electron laser (FEL) is designed to run at 10.6 micrometers. The 1-kA, 45-MeV electron beam is provided by the Advanced Test Accelerator. The wiggler is 25 m long with an 8 cm period. The input optical signal to the amplifier is provided by a conventional CO2 laser, which can produce a peak input power of either 18 kW or 3.6 MW. We have demonstrated 31 dB of gain with the 18-kW input and 12.9 dB of gain for the 3.6-MW input, producing over 70 MW of optical power. Using the 18-kW input, the gain saturated at about 12 m into the wiggler; with the 3.6-MW input, the gain saturated at about 8 m. Modeling results are shown.

  3. First Results from SHIP Experiment

    SciTech Connect

    Bagryansky, P.A.

    2005-01-15

    At present, the GDT facility is being upgraded. The first stage of the upgrade is the Synthesised Hot Ion Plasmoid (SHIP) experiment. It aims, on the one hand, at the investigation of plasmas which are expected to appear in the region of high neutron production in a GDT based fusion neutron source proposed by the Budker Institute and, on the other hand, at the investigation of plasmas the parameters of which have never been achieved before in axisymmetric magnetic mirrors.The experiment is performed in a small mirror section which is installed at the end of one side of GDT. The magnetic field on axis is in the range of 0.5-2.0 Tesla and the mirror ratio is 1.2-1.4. The mirror is filled with background plasma streaming in from the central cell. This plasma component is maxwellised and has an electron temperature of about 100 eV. Two neutral beam injectors perpendicularly inject a total current of about 50 Atom Amperes of deuterium neutrals with an energy of 20 keV as a pulse with a duration of about 1 ms. Ionisation of the beams generates the high-energy ion component. The device has been equipped with several diagnostic methods which are successfully used in GDT experiments.The paper presents first results of plasma parameter measurements in SHIP experiment.

  4. Results from the PAMELA experiment.

    NASA Astrophysics Data System (ADS)

    Mori, Nicola

    2014-08-01

    PAMELA is a satellite-borne experiment, aimed at precision measurements of the charged, light component of the cosmic-ray spectrum. It consists of a magnetic spectrometer, a time-of-flight system, an electromagnetic calorimeter, an anticoincidence system and a neutron detector. The main focus of the experiment is on antimatter; other components of the spectrum that can be investigated include electrons and light nuclei up to oxygen. Thanks to its placement out of the terrestrial atmosphere and the long exposure time, PAMELA is able to provide data with low systematic effects and high statistical significance. Its semi-polar orbit allows to detect particles of solar origin and to investigate the effects of the solar activity on the low-energy part of the galactic component of the spectrum (solar modulation). The redundancy of its detectors allows to monitor the detector performance and to measure the data selection efficiency directly from flight data. The instrument has been launched in 2006 and it is continuously taking data since then. The most important and recent results from the experiment will be presented.

  5. Results from the NEXT Protogypes

    DOE PAGES

    Oliveira, C A.B.

    2013-10-04

    NEXT-100 is an electroluminescent high pressure Time Projection Chamber currently under construction. It will search for the neutrino-less double beta decay in 136Xe at the Canfranc Underground Laboratory. NEXT-100 aims to achieve nearly intrinsic energy resolution and to highly suppress background events by taking advantage of the unique properties of xenon in the gaseous phase as the detection medium. In order to prove the principle of operation and to study which are the best operational conditions, two prototypes were constructed: NEXT-DEMO and NEXT-DBDM. In this study we present the latest results from both prototypes. We report the improvement in termsmore » of light collection (~ 3x) achieved by coating the walls of NEXT-DEMO with tetraphenyl butadiene (TPB), the outstanding energy resolution of 1% (Full Width Half Maximum) from NEXT-DBDM as well as the tracking capabilities of this prototype (2.1 mm RMS error for point-like depositions) achieved by using a square array of 8 x 8 SiPMs.« less

  6. [Ureteroscopy. Our results and complications].

    PubMed

    Hernández, D; Larrea Masvidal, E; Castillo, M; García, C; Valdes, C; Báez, D; Ramírez, L

    1993-06-01

    From November, 1987 to December, 1990, 399 cases of ureteral calculi were treated by rigid ureteroscopy (URS). Our success and complication rates are presented. Of these, 99 (25%) had a calculus in the pelvis (78/99), iliac (15/99) or lumbar (6/99) ureter, and 300 (75%) had Sandstrasse in the distal ureter. The cases with Sandstrasse were submitted to ureteroscopy within the first 48-72 hours to remove the ureteral obstruction, prevent hydronephrosis or sepsis and to expedite treatment. If symptomatic, obstructive and/or 7 mm or more in diameter, a nephrostomy tube was placed first whenever there was sepsis [23/300 (7%) of those with Sandstrasse and 3/99 (3%) of those with a ureteral calculus] or marked dilatation of the renal cavities [29/300 (9%) and 6/99 (6%), respectively]. The success rate was 93% for the cases with Sandstrasse versus 85% for those with a ureteral calculus, and the complication rates were 5.7% versus 9%, respectively. The foregoing results confirm the high success rate and scant morbidity of ureteroscopy in the treatment of ureteral calculus and Sandstrasse.

  7. Pulmonary Vascular Angioscopy - Current Results

    NASA Astrophysics Data System (ADS)

    Shure, Deborah; Buchbinder, Maurice; Peterson, Kirk

    1988-06-01

    We performed angioscopy on 31 patients with suspected chronic pulmonary arterial ob-struction using three prototype angioscopes. The instruments varied in length (80, 90, and 120 cm), outside diameter (3.2 and 4 mm), and distal tip deflection (70, 90, and 180 degrees). All had a distal viewing balloon. Conventional diagnostic studies were performed and decisions about diagnosis and operability were made prior to angioscopy. An independent assessment of diagnosis and operability was then made based on the results of angioscopy. Surgical confirmation was obtained in most cases and clinical or autopsy data were obtained in the remainder. Angioscopy led to a change in the diagnosis of 6 patients (19%). Four of 25 patients with chronic pulmonary emboli were felt to be inoperable based on the angioscopic findings. Two of these 4 underwent surgery and were found to be inoperable. 21 of the remaining 25 patients were felt to have operable disease and 19 underwent surgery. In 14 of these 19 (74%), the conventional studies were either negative or equivocal with respect to operability and the decision to operate was based on angioscopic data. We conclude that good visualization of the central pulmonary arteries can be achieved with the optical balloon technique; that the procedure can be performed safely in patients with severe pulmonary hypertension; and that the information obtained by angioscopy can significantly affect clinical decisions in patients with chronic pulmonary artery obstruction.

  8. SPA Meteor Section Results: 2006

    NASA Astrophysics Data System (ADS)

    McBeath, Alastair

    2010-12-01

    A summary of the main analyzed results and other information provided to the SPA Meteor Section from 2006 is presented and discussed. Events covered include: the radio Quadrantid maximum on January 3/4; an impressive fireball seen from parts of England, Belgium and the Netherlands at 22h53m51s UT on July 18, which was imaged from three EFN stations as well; the Southern delta-Aquarid and alpha-Capricornid activity from late July and early August; the radio Perseid maxima on August 12/13; confirmation that the October 5/6 video-meteor outburst was not observed by radio; visual and radio findings from the strong, bright-meteor, Orionid return in October; another impressive UK-observed fireball on November 1/2, with an oil painting of the event as seen from London; the Leonids, which produced a strong visual maximum around 04h-05h UT on November 18/19 that was recorded much less clearly by radio; radio and visual reports from the Geminids, with a note regarding NASA-observed Geminid lunar impact flashes; and the Ursid outburst recorded by various techniques on December 22.

  9. Cassini ISS Satellite Orbit Results

    NASA Astrophysics Data System (ADS)

    Spitale, J. N.; Jacobson, R. A.; Porco, C. C.; Owen, W. M.; Charnoz, S.; Murray, C. D.; Brahic, A.; Evans, M. W.; Beurle, K.; Cooper, N.; Cassini Imaging

    2004-11-01

    We report on the orbits of several small Saturnian satellites, either recovered or newly-discovered in recent Cassini imaging observations. The mean motions of Pan and Atlas have been corrected based on recent Cassini imaging combined with Voyager observations. Two small satellites, S/2004 S 1 and S/2004 S 2, have been discovered between the orbits of Mimas and Enceladus on orbits that are nearly circular and uninclined. Both bodies were observed for a fraction of one orbit on June 1, 2004 and S/2004 S 1 was subsequently detected in images shuttered three weeks earlier. Those bodies may be recovered in late October in imaging sequences designed for that purpose. A third new object was detected in images from June 21, 2004, orbiting just outside the F ring. However, a search for additional detections revealed something orbiting interior to the F ring near the longitude at which the new object would be expected 5 hours later. A low-residual orbit that crosses the F ring has been found to explain all of the observations, but it is not yet clear whether the two sequences imaged the same object or two different objects that coincidentally were found orbiting at the same longitude but at different orbital semimajor axes. These issues make its nature -- solid satellite or F ring clump -- unclear. The data, fitting procedures, and results will be discussed.

  10. Drillhole results to be discussed

    NASA Astrophysics Data System (ADS)

    Katzoff, Judith A.

    Vattenfall, the Swedish State Power Board, is searching for a predicted reservoir of abiogenic methane beneath the floor of a meteorite crater in central Sweden. Some of the early scientific results from the drilling project at the Siljan Ring impact structure will be presented on Thursday, May 21, at the 1987 AGU Spring Meeting in Baltimore, Md.Thomas Gold of Cornell University (Ithaca, N.Y.) has predicted that large amounts of methane from deep within the earth may move closer to the surface beneath sites where large meteorites have hit the earth, such as the Siljan Ring structure (Eos, July 9, 1985, p. 537). The site is known for its gas seeps, according to Paul Westcott of the Gas Research Institute (GRI, in Chicago, Ill.). The institute is putting up 15% of the costs of the drillhole in return for access to samples and data. Seismic surveys at the site revealed horizontal structures in the granite, which may suggest the presence of gas-liquid interfaces, Westcott said.

  11. Majorana Thermosyphon Prototype Experimental Results

    SciTech Connect

    Fast, James E.; Reid, Douglas J.; Aguayo Navarrete, Estanislao

    2010-12-17

    Objective The Majorana demonstrator will operate at liquid Nitrogen temperatures to ensure optimal spectrometric performance of its High Purity Germanium (HPGe) detector modules. In order to transfer the heat load of the detector module, the Majorana demonstrator requires a cooling system that will maintain a stable liquid nitrogen temperature. This cooling system is required to transport the heat from the detector chamber outside the shield. One approach is to use the two phase liquid-gas equilibrium to ensure constant temperature. This cooling technique is used in a thermosyphon. The thermosyphon can be designed so the vaporization/condensing process transfers heat through the shield while maintaining a stable operating temperature. A prototype of such system has been built at PNNL. This document presents the experimental results of the prototype and evaluates the heat transfer performance of the system. The cool down time, temperature gradient in the thermosyphon, and heat transfer analysis are studied in this document with different heat load applied to the prototype.

  12. JGR to feature GEOSAT result

    NASA Astrophysics Data System (ADS)

    Douglas, Bruce C.; Cheney, Robert E.

    A forthcoming special issue of the Journal of Geophysical Research will be devoted to results from the GEOSAT altimeter mission. Contributions are solicited on all aspects of the data, including sea level, ocean dynamics, tides, marine geodesy, wind speed, wave height, data management, model assimilation, algorithm development, altimeter calibration, orbit determination, and geopotential improvement.GEOSAT is a U.S. Navy satellite built and operated by the Applied Physics Laboratory of Johns Hopkins University. The GEOSAT data set has been prepared by NOAA National Ocean Service and is distributed through the National Oceanographic Data Center. The archive presently includes geophysical data records for 2 years (Cheney et al., GEOSAT Altimeter Geophysical Data Record User Handbook, NOAA Technical Memorandum NOS NGS-46, 32 pp., July 1987); new data are added each month. An additional 18-month wind-wave data set is also available (Dobson et al., GEOSAT Altimeter Wind and Wave Data Record User Handbook, Johns Hopkins Applied Physics Laboratory Report SIR88U, 29 p p. March 1988).

  13. Mark III results from SPEAR

    SciTech Connect

    Toki, W.

    1983-11-01

    First results from the MARK III detector at SPEAR are presented based on 2.7 million J/psi decays. The eta/sub c/ is observed in three modes, J/psi ..-->.. ..gamma..eta/sub c/, (eta/sub c/ ..-->.. rho anti rho, eta..pi../sup +/..pi../sup -/, and phi phi). Using the phi phi mode, the eta/sub c/ spin-parity is determined to be 0/sup -/. The known radiative J/psi decays J/psi ..-->.. ..gamma..f(f ..-->.. ..pi../sup +/..pi../sup -/), ..gamma..eta'(eta' ..-->.. ..gamma..rho/sup 0/, eta..pi../sup +/..pi../sup -/), ..gamma..f'(f' ..-->.. kappa/sup +/kappa/sup -/), ..gamma..theta(theta ..-->.. kappa anti kappa), and ..gamma..iota(iota ..-->.. ..pi..kappa anti kappa) are observed and their branching ratios found to be in agreement with previous measurements. In the J/psi ..-->.. ..gamma..kappa/sup +/kappa/sup -/ mode a new state is observed at 2.22 GeV and in the J/psi ..-->.. ..gamma gamma..rho/sup 0/ and ..gamma..eta..pi../sup +/..pi../sup -/ modes evidence for new structures near 1.4 GeV is presented. 29 references.

  14. Results from the NEXT Protogypes

    SciTech Connect

    Oliveira, C A.B.

    2013-10-04

    NEXT-100 is an electroluminescent high pressure Time Projection Chamber currently under construction. It will search for the neutrino-less double beta decay in 136Xe at the Canfranc Underground Laboratory. NEXT-100 aims to achieve nearly intrinsic energy resolution and to highly suppress background events by taking advantage of the unique properties of xenon in the gaseous phase as the detection medium. In order to prove the principle of operation and to study which are the best operational conditions, two prototypes were constructed: NEXT-DEMO and NEXT-DBDM. In this study we present the latest results from both prototypes. We report the improvement in terms of light collection (~ 3x) achieved by coating the walls of NEXT-DEMO with tetraphenyl butadiene (TPB), the outstanding energy resolution of 1% (Full Width Half Maximum) from NEXT-DBDM as well as the tracking capabilities of this prototype (2.1 mm RMS error for point-like depositions) achieved by using a square array of 8 x 8 SiPMs.

  15. Cosmic radioactivity and INTEGRAL results

    SciTech Connect

    Diehl, Roland

    2014-05-02

    Gamma-ray lines from radioactive decay of unstable isotopes co-produced by nucleosynthesis in massive stars and supernova have been measured since more than thirty years. Over the past ten years, INTEGRAL complemented the first sky survey made by COMPTEL. The {sup 26}A1 isotope with 1 My decay time had been first direct proof of currently-ongoing nucleosynthesis in our Galaxy. This has now become a tool to study the ∼My history of specific source regions, such as massive-star groups and associations in nearby regions which can be discriminated from the galactic-plane background, and the inner Galaxy, where Doppler shifted lines add to the astronomical information about bar and spiral structure. Recent findings suggest that superbubbles show a remarkable asymmetry, on average, in the spiral arms of our galaxy. {sup 60}Fe is co-produced by the sources of {sup 26}A1, and the isotopic ratio from their nucleosynthesis encodes stellar-structure information. Annihilation gamma-rays from positrons in interstellar space show a puzzling bright and extended source region central to our Galaxy, but also may be partly related to nucleosynthesis. {sup 56}Ni and {sup 44}Ti isotope gamma-rays have been used to constrain supernova explosion mechanisms. Here we report latest results using the accumulated multi-year database of INTEGRAL observations, and discuss their astrophysical interpretations, connecting to other traces of cosmic radioactivity and to other cosmic messengers.

  16. Latest results from Daya Bay

    NASA Astrophysics Data System (ADS)

    Vorobel, Vit; Daya Bay Collaboration

    2017-07-01

    The Daya Bay Reactor Neutrino Experiment was designed to measure θ 13, the smallest mixing angle in the three-neutrino mixing framework, with unprecedented precision. The experiment consists of eight functionally identical detectors placed underground at different baselines from three pairs of nuclear reactors in South China. Since Dec. 2011, the experiment has been running stably for more than 4 years, and has collected the largest reactor anti-neutrino sample to date. Daya Bay is able to greatly improve the precision on θ 13 and to make an independent measurement of the effective mass splitting in the electron antineutrino disappearance channel. Daya Bay can also perform a number of other precise measurements, such as a high-statistics determination of the absolute reactor antineutrino flux and spectrum, as well as a search for sterile neutrino mixing, among others. The most recent results from Daya Bay are discussed in this paper, as well as the current status and future prospects of the experiment.

  17. [Reprodcutive results of radical trachelectomy].

    PubMed

    Martínez-Chapa, Arnulfo; Alonso-Reyes, Nelly; Luna-Macías, Miguel

    2015-12-01

    Historically, cervical cancer in early stages has been treated with radical hysterectomy and radiotherapy with no option in keeping the uterine-ovarian function. Since two decades ago, evidence shows these cases are candidates for radical trachelectomy, a procedure capable of preserving the fertility without affecting the oncological outcome. To analyze reproductive results among patients treated with radical trachelectomy, in a reference center from the northeast of Mexico. Between March 1999 and December 2013, 27 cases with cervical cancer in early stages were treated with vaginal or abdominal radical trachelectomy in the ISSSTE Regional Hospital in Monterrey, NL (Mexico). We obtained the gynecological, medical and surgical clinical history. Plan of analysis consisted of descriptive statistics. Age range was 27-39 years. Main complications were cervical stenosis (n=1) and erosion of cerclaje (n=2). Eighteen patients tried to get pregnant, 8 of them got a spontaneous pregnancy; 1 more patient required assisted reproduction technics and did not succeed. All pregnancies were delivered by cesarean section and were preterm births; 3 underwent premature rupture of membranes. Two pregnancies ended in abortion, one at 10 weeks with severe hemorrhage that needed hysterectomy; the second one, at 1 7 weeks, received a fine uterine curettage. Only 6 cases (33%) got a live birth. Only one third of the attempted pregnancies got a live birth. Assisted reproduction technics play an important role and should be offer to all cases. Cerclaje is an important factor to carry a pregnancy up to the third trimester.

  18. Experimental results on evaporation waves

    NASA Astrophysics Data System (ADS)

    Grana Otero, Jose; Parra Fabian, Ignacio

    2010-11-01

    A liquid contained in a vertical glass tube is suddenly depressurized from a high initial pressure down to one for which the stable state is vapour, so vaporization sets off at the free surface. For large enough evaporation rates, the planar vapour-liquid interface is Darrieus-Landau unstable [1], leading to the interface surface rippling close to the instability threshold. Further increasing the initial to final pressure ratio brings about evaporation waves [2,3], in which a highly corrugated front propagates downwards into the liquid. A new experimental method is presented as well as some experimental results obtained by tracking the evolution of the front with a high speed camera. In addition, a number of new phenomena related to the dynamics of bubbles growth at the walls has been uncovered. In particular, a new mode of propagation of the evaporation front is found. In this mode the front originates from below the interface, so the propagation is upwards against gravity with a curved but smooth front.[4pt] [1] F. J. Higuera, Phys. Fluids, V. 30, 679 (1987).[0pt] [2] J.E.Shepherd and B.Sturtevant, J.Fluid Mech., V.121,379 (1982).[0pt] [3] P.Reinke and G.Yadigaroglu, Int.J.Multiph. Flow, V.27,1487 (2001).

  19. Visible Nulling Coronagraph Testbed Results

    NASA Technical Reports Server (NTRS)

    Lyon, Richard G.; Clampin, Mark; Melnick, Gary; Tolls, Volker; Woodruff, Robert; Vasudevan, Gopal; Rizzo, Maxime; Thompson, Patrick

    2009-01-01

    The Extrasolar Planetary Imaging Coronagraph (EPIC) is a NASA Astrophysics Strategic Mission Concept study and a proposed NASA Discovery mission to image and characterize extrasolar giant planets in orbits with semi-major axes between 2 and 10 AU. EPIC would provide insights into the physical nature of a variety of planets in other solar systems complimenting radial velocity (RV) and astrometric planet searches. It will detect and characterize the atmospheres of planets identified by radial velocity surveys, determine orbital inclinations and masses, characterize the atmospheres around A and F stars, observed the inner spatial structure and colors of inner Spitzer selected debris disks. EPIC would be launched to heliocentric Earth trailing drift-away orbit, with a 5-year mission lifetime. The starlight suppression approach consists of a visible nulling coronagraph (VNC) that enables starlight suppression in broadband light from 480-960 nm. To demonstrate the VNC approach and advance it's technology readiness we have developed a laboratory VNC and have demonstrated white light nulling. We will discuss our ongoing VNC work and show the latest results from the VNC testbed.

  20. Preliminary results of ANAIS-25

    NASA Astrophysics Data System (ADS)

    Amaré, J.; Cebrián, S.; Cuesta, C.; García, E.; Ginestra, C.; Martínez, M.; Oliván, M. A.; Ortigoza, Y.; Ortiz de Solórzano, A.; Pobes, C.; Puimedón, J.; Sarsa, M. L.; Villar, J. A.; Villar, P.

    2014-04-01

    The ANAIS (Annual Modulation with NaI(Tl) Scintillators) experiment aims at the confirmation of the DAMA/LIBRA signal using the same target and technique at the Canfranc Underground Laboratory. 250 kg of ultrapure NaI(Tl) crystals will be used as a target, divided into 20 modules, each coupled to two photomultipliers. Two NaI(Tl) crystals of 12.5 kg each, grown by Alpha Spectra from a powder having a potassium level under the limit of our analytical techniques, form the ANAIS-25 set-up. The background contributions are being carefully studied and preliminary results are presented: their natural potassium content in the bulk has been quantified, as well as the uranium and thorium radioactive chains presence in the bulk through the discrimination of the corresponding alpha events by PSA, and due to the fast commissioning, the contribution from cosmogenic activated isotopes is clearly identified and their decay observed along the first months of data taking. Following the procedures established with ANAIS-0 and previous prototypes, bulk NaI(Tl) scintillation events selection and light collection efficiency have been also studied in ANAIS-25.

  1. FlareLab: early results

    NASA Astrophysics Data System (ADS)

    Soltwisch, H.; Kempkes, P.; Mackel, F.; Stein, H.; Tenfelde, J.; Arnold, L.; Dreher, J.; Grauer, R.

    2010-12-01

    The FlareLab experiment at Bochum University has been constructed to generate and investigate plasma-filled magnetic flux tubes similar to arch-shaped solar prominences, which often result in coronal mass ejections (CMEs). In its first version, the device has been used to reproduce and extend previous studies of Bellan et al (1998 Phys. Plasmas 5 1991). Here the plasma source consists of two electrodes, which can be connected to a 1.0 kJ capacitor bank, and of a horseshoe magnet, which provides an arch-shaped guiding field. The discharge is ignited in a cloud of hydrogen gas that has been puffed into the space above the electrodes. In the first few microseconds the plasma current rises at a rate of several kA µs-1, causing the plasma column to pinch along the guiding B-field and to form an expanding loop structure. The observed dynamics of the magnetic flux tubes is analysed by means of three-dimensional MHD simulations in order to determine the influence of parameters like the initial magnetic field geometry on magnetic stability. At present, FlareLab is redesigned to mimic a model that was proposed by Titov and Démoulin (1999 Astron. Astrophys. 351 707) to investigate twisted magnetic configurations in solar flares.

  2. Mobile evaporator corrosion test results

    SciTech Connect

    Rozeveld, A.; Chamberlain, D.B.

    1997-05-01

    Laboratory corrosion tests were conducted on eight candidates to select a durable and cost-effective alloy for use in mobile evaporators to process radioactive waste solutions. Based on an extensive literature survey of corrosion data, three stainless steel alloys (304L, 316L, AL-6XN), four nickel-based alloys (825, 625, 690, G-30), and titanium were selected for testing. The corrosion tests included vapor phase, liquid junction (interface), liquid immersion, and crevice corrosion tests on plain and welded samples of candidate materials. Tests were conducted at 80{degrees}C for 45 days in two different test solutions: a nitric acid solution. to simulate evaporator conditions during the processing of the cesium ion-exchange eluant and a highly alkaline sodium hydroxide solution to simulate the composition of Tank 241-AW-101 during evaporation. All of the alloys exhibited excellent corrosion resistance in the alkaline test solution. Corrosion rates were very low and localized corrosion was not observed. Results from the nitric acid tests showed that only 316L stainless steel did not meet our performance criteria. The 316L welded interface and crevice specimens had rates of 22.2 mpy and 21.8 mpy, respectively, which exceeds the maximum corrosion rate of 20 mpy. The other welded samples had about the same corrosion resistance as the plain samples. None of the welded samples showed preferential weld or heat-affected zone (HAZ) attack. Vapor corrosion was negligible for all alloys. All of the alloys except 316L exhibited either {open_quotes}satisfactory{close_quotes} (2-20 mpy) or {open_quotes}excellent{close_quotes} (<2 mpy) corrosion resistance as defined by National Association of Corrosion Engineers. However, many of the alloys experienced intergranular corrosion in the nitric acid test solution, which could indicate a susceptibility to stress corrosion cracking (SCC) in this environment.

  3. Results in split liver transplantation.

    PubMed

    Moreno, A; Meneu, J C; Moreno, E; Garcia, I; Loinaz, C; Jimenez, C; Gómez, R; Abradelo, M; Calvo, J; Fundora, Y; Ortiz, C

    2003-08-01

    The shortage in cadaveric grafts has prompted the development of alternative surgical techniques to expand the donor pool. To evaluate the feasibility of split liver transplantation using an observational, retrospective, and longitudinal study. Between April 1986 and October 2002 we performed 875 liver transplants. From April 1991 to date, we performed 18 split liver transplantations in patients of mean age 42.27+/-25.65 years; five children and 13 adults; and 83.3% women. Urgent transplants accounted for 38.9%. Mean patient weight was 52.29+/-20.87 kg. Ex situ splitting was performed in 33%. The mean cold ischemia time was 460+/-265.69 minutes with a mean warm time of 64.33+/-11.78 minutes. Mean consumption of packed blood was 5.59+/-4.87 units; of frozen fresh plasma, 11.56+/-7.42 units; and of platelets 4.89+/-4.99 units. After a mean follow-up of 10.83+/-12.51 months, 55.56% of the recipients are alive. Actuarial patient and graft survival rates at 1 year are 55.6% and 44.12%, respectively. Actuarial patient and graft survival rates at 1 year, excluding operative mortality were 77% and 68%, respectively. Actuarial patient and graft survival rates at 1 year, comparing urgent and elective transplantations are: 14.29 and 14%, respectively, for urgent cases and 90.91 and 90% for elective ones. Operative mortality was 16.6% while mortality during follow-up was 26.6%. The late complications included arterial thrombosis (n=2): of whom the first needed liver retransplantation 4 months after split liver transplantation; chronic rejection (n=2), recurrence of hepatitis (n=1). Split liver transplantation is a useful way to expand the graft pool and shows better results in elective liver transplantation.

  4. Corral Monitoring System assessment results

    SciTech Connect

    Filby, E.E.; Haskel, K.J.

    1998-03-01

    This report describes the results of a functional and operational assessment of the Corral Monitoring Systems (CMS), which was designed to detect and document accountable items entering or leaving a monitored site. Its development was motivated by the possibility that multiple sites in the nuclear weapons states of the former Soviet Union might be opened to such monitoring under the provisions of the Strategic Arms Reduction Treaty. The assessment was performed at three levels. One level evaluated how well the planned approach addressed the target application, and which involved tracking sensitive items moving into and around a site being monitored as part of an international treaty or other agreement. The second level examined the overall design and development approach, while the third focused on individual subsystems within the total package. Unfortunately, the system was delivered as disassembled parts and pieces, with very poor documentation. Thus, the assessment was based on fragmentary operating data coupled with an analysis of what documents were provided with the system. The system design seemed to be a reasonable match to the requirements of the target application; however, important questions about site manning and top level administrative control were left unanswered. Four weaknesses in the overall design and development approach were detected: (1) poor configuration control and management, (2) inadequate adherence to a well defined architectural standard, (3) no apparent provision for improving top level error tolerance, and (4) weaknesses in the object oriented programming approach. The individual subsystems were found to offer few features or capabilities that were new or unique, even at the conceptual level. The CMS might possibly have offered a unique combination of features, but this level of integration was never realized, and it had no unique capabilities that could be readily extracted for use in another system.

  5. ULTIMATE RESULTS OF AORTIC TRANSPLANTATIONS

    PubMed Central

    Carrel, Alexis

    1912-01-01

    In the first experiment, a segment of popliteal artery, extirpated from the leg of a young man and preserved for twenty-four days in cold storage, was transplanted upon the abdominal aorta of a small bitch. The animal lived in excellent health for four years and two months, became pregnant several times, and finally died during labor. The abdominal aorta was normal, but the human arterial segment was slightly dilated, and its wall was composed of connective tissue only. In the second experiment, a segment of dog's jugular vein, preserved for twenty-four hours in cold storage, was transplanted upon the thoracic aorta of a fox terrier. In spite of slight lesions of the cord due to interruption of the aortic circulation during the operation, the animal remained in excellent health. After two years and two months, the dog died of an epidemic disease. The descending aorta was normal. The transplanted segment had about the same caliber as that of the aorta, but its wall was composed of connective tissue, with no evidence of muscular or elastic tissues. In these two experiments, the walls of the transplanted segments contained neither muscle nor elastic tissue fibers and were not thicker than those of the artery. Nevertheless, they were able to withstand the pressure of the blood without undergoing any marked dilatation. If death due to accident had not brought these two experiments to an end, it is probable that the transplanted segment would have successfully resisted the pressure of the blood for a much longer time. As it is, the result shows that, in one experiment after four years and in the other after two years, the segments transplanted upon the abdominal and thoracic aortas were still efficient. PMID:19867531

  6. Transconjunctival dacryocystorhinostomy: Long term results

    PubMed Central

    Kaynak, Pelin; Ozturker, Can; Karabulut, Gamze; Çelik, Burcu; Yilmaz, Omer Faruk; Demirok, Ahmet

    2013-01-01

    Purpose To evaluate the outcomes of transconjunctival dacryocystorhinostomy (TRC-DCR) surgery in patients with epiphora due to primary acquired nasolacrimal duct obstruction (PANDO) at second year follow-up. Methods In this retrospective, interventional study, 33 eyes of 29 patients, with epiphora due to PANDO, are included. Lower eyelid conjunctiva is incised at vestibulum inferomedially to access the lacrimal sac and nasal mucosa. Bone is perforated with burr and rongeurs and saccal and nasal flaps are anastomosed. Conjunctival wound edges are apposed and left unsutured. Intraoperative difficulties, surgical time and complications are noted. Average follow-up time was 2 years. Anatomical success was defined as patent lacrimal passages upon irrigation and functional success was defined as relief of epiphora. Results In nineteen (57.6%) eyes the surgeries were completed with the anterior and the posterior flaps sutured. In eight eyes (24.2%) only anterior flaps could be sutured. In 6 eyes (18.2%), the surgical procedure was converted to external dacryocystorhinostomy since the nasal mucosa could not be exposed adequately via transconjunctival route. The mean surgical time was 65.1 min. One patient had a millimeter long lower eyelid margin laceration in one eye (3.7%) intraoperatively due to traction for visualization of the operative site. Epiphora resolved in 25 of 27 eyes (92.5%) in whom TRC-DCR could be completed. Epiphora and failure to irrigation were noted in two eyes (7.4%) at the postoperative 4th and 8th months, respectively and required reoperation. No complications occurred, except granuloma formation at the conjunctival incision site in three eyes (11.1%). Epiphora resolved in all the six eyes of patients who underwent an external DCR (100%). Conclusion Transconjunctival dacryocystorhinostomy is a scarless dacryocystorhinostomy technique which is performed without endoscope and/or laser assistance, with 92.5% success rate comparable to external DCR at

  7. An overview of FTU results

    NASA Astrophysics Data System (ADS)

    Buratti, P.; Alessi, E.; Amicucci, L.; Angelini, B.; Apicella, M. L.; Apruzzese, G.; Artaserse, G.; Barbato, E.; Belli, F.; Bertocchi, A.; Bin, W.; Boncagni, L.; Botrugno, A.; Briguglio, S.; Bruschi, A.; Calabrò, G.; Cardinali, A.; Castaldo, C.; Ceccuzzi, S.; Centioli, C.; Cesario, R.; Cianfarani, C.; Cirant, S.; Crisanti, F.; D'Arcangelo, O.; De Angeli, M.; De Angelis, R.; Di Matteo, L.; Di Troia, C.; Esposito, B.; Farina, D.; Figini, L.; Fogaccia, G.; Frigione, D.; Fusco, V.; Gabellieri, L.; Galperti, C.; Garavaglia, S.; Giovannozzi, E.; Granucci, G.; Grossetti, G.; Grosso, G.; Guimarães-Filho, Z. O.; Iannone, F.; Krivska, A.; Kroegler, H.; Lazzaro, E.; Lontano, M.; Maddaluno, G.; Marchetto, C.; Marinucci, M.; Marocco, D.; Mazzitelli, G.; Mazzotta, C.; Milovanov, A.; Minelli, D.; Mirizzi, F. C.; Moro, G. A.; Napoli, F.; Nowak, S.; Orsitto, F. P.; Pacella, D.; Panaccione, L.; Panella, M.; Pericoli-Ridolfini, V.; Podda, S.; Pizzuto, A.; Pucella, G.; Ramogida, G.; Ravera, G.; Romano, A.; Sozzi, C.; Tuccillo, A. A.; Tudisco, O.; Viola, B.; Vitale, V.; Vlad, G.; Zanza, V.; Zerbini, M.; Zonca, F.; Aquilini, M.; Cefali, P.; Di Ferdinando, E.; Di Giovenale, S.; Giacomi, G.; Gravanti, F.; Grosso, A.; Mellera, V.; Mezzacappa, M.; Pensa, A.; Petrolini, P.; Piergotti, V.; Raspante, B.; Rocchi, G.; Sibio, A.; Tilia, B.; Torelli, C.; Tulli, R.; Vellucci, M.; Zannetti, D.

    2013-10-01

    Since the 2010 IAEA-FEC Conference, FTU has exploited improvements in cleaning procedures and in the density control system to complete a systematic exploration of access to high-density conditions in a wide range of plasma currents and magnetic fields. The line-averaged densities at the disruptive limit increased more than linearly with the toroidal field, while no dependence on plasma current was found; in fact, the maximum density of 4.3 × 1020 m-3 was reached at B = 8 T even at the minimum current of 0.5 MA, corresponding to twice the Greenwald limit. The lack of plasma current dependence was due to the increase in density peaking with the safety factor. Experiments with the 140 GHz electron cyclotron resonance heating (ECRH) system were focused on the sawtooth (ST) period control and on the commissioning of a new launcher with real-time steering capability that will act as the front-end actuator of a real-time system for ST period control and tearing mode stabilization. Various ECRH and electron cyclotron current-drive modulation schemes were used; with the fastest one, the ST period synchronized with an 8 ms modulation period. The observed period variations were simulated using the JETTO code with a critical shear model for the crash trigger. The new launcher was of the plug-in type, allowing quick insertion and connection to the transmission line. Both beam characteristics and steering speed were in line with design expectation. Experimental results on the connection between improved coupling of lower hybrid waves in high-density plasmas and reduced wave spectral broadening were interpreted by fully kinetic, non-linear model calculations. A dual-frequency, time-of-flight diagnostic for the measurement of density profiles was developed and successfully tested. Fishbone-like instabilities driven by energetic electrons were simulated by the hybrid MHD-gyrokinetic XHMGC code.

  8. [Results for SHEBA/FIRE

    NASA Technical Reports Server (NTRS)

    Valero, Francisco P. J.

    2003-01-01

    The Atmospheric Research Laboratory's Radiation Measurement System (RAMS) was on the NCAR C-130 aircraft in May and July 1998, collecting radiometric data on the science flights conducted in the vicinity of the Surface Heat Budget of the Arctic Ocean (SHEBA) ship. These measurements were part of the FIRE Arctic Cloud Experiment (FIRE ACE). Analysis of some of the data focused on the absorption, reflection, and transmittance of Arctic clouds, especially compared to model results. In order to assess the absorption of solar radiation by the clear and cloudy atmosphere in the Arctic the measurements from the radiometers were combined in pairs of above-cloud segments and below-cloud segments. To get these pairs, the data for all sixteen of the flights (8 in May and 8 in July) were examined for occurrences of low-altitude segments in proximity to high-altitude segments. The low-altitude data are then treated as measurements of the bottom of a layer and the high-altitude data are taken as measurements of the top of the layer. With measurements of the upwelling and downwelling irradiances above and below a layer one can determine the reflectance, transmittance, and absorptance of the layer. Attachment: Doelling, D.R., P. Minnis, D.A. Spangenberg, V. Chakrapani, A. Mahesh, S.K. Pope, and F.P.J. Valero, Cloud radiative forcing at the top of the atmosphere during FIRE ACE derived from AVHRR data, J. Geophys. Res. 106, 15,279-15,296,2001. Minnis, P., D.R. Doelling, D.A. Spangenberg, A. Mahesh, S.K. Pope, and F.P.J. Valero, AVHRR-derived cloud radiative forcing over the ARM NSA and SHEBA site during FIRE ACE, abstract submitted to the ARM Science Team Meeting, San Antonio, TX, M a . 13-17,2000. Pope, S.K., and F.P.J. Valero, Measured and modeled radiometric fluxes in the Arctic during FIRE-ACE, presented as a poster at the American Geophysical Union meeting, San Francisco, CA, Dec. 13-17, 1999. Pope, S.K., and F.P.J. Valero, Measured and modeled radiometric fluxes in the Arctic

  9. Introduction and Summary of Results

    NASA Astrophysics Data System (ADS)

    Yaghjian, Arthur D.

    The primary purpose of this work is to determine an equation of motion for the classical Lorentz model of the electron that is consistent with causal solutions to the Maxwell-Lorentz equations, the relativistic generalization of Newton's second law of motion, and Einstein's mass-energy relation. (The latter two laws of physics were not discovered until after the original works of Lorentz, Abraham, and Poincaré. The hope of Lorentz and Abraham for deriving the equation of motion of an electron from the self force determined by the Maxwell-Lorentz equations alone was not fully realized.) The work begins by reviewing the contributions of Lorentz, Abraham, Poincaré, and Schott to this century-old problem of finding the equation of motion of an extended electron. Their original derivations, which were based on the Maxwell-Lorentz equations and assumed a zero bare mass, are modified and generalized to obtain a nonzero bare mass and consistent force and power equations of motion. By looking at the Lorentz model of the electron as a charged insulator, general expressions are derived for the binding forces that Poincaré postulated to hold the charge distribution together. A careful examination of the classic Lorentz-Abraham derivation reveals that the self electromagnetic force must be modified during a short time interval after the external force is first applied and after all other nonanalytic points in time of the external force. The resulting modification to the equation of motion, although slight, eliminates the noncausal pre-acceleration (and pre-deceleration) that has plagued the solution to the Lorentz-Abraham equation of motion. As part of the analysis, general momentum and energy relations are derived and interpreted physically for the solutions to the equation of motion, including “hyperbolic” and “runaway” solutions. Also, a stress-momentum-energy tensor that includes the binding, bare-mass, and electromagnetic momentum-energy densities is derived for

  10. Overview of ASDEX Upgrade results

    NASA Astrophysics Data System (ADS)

    Gruber, O.; Bosch, H.-S.; Günter, S.; Herrmann, A.; Kallenbach, A.; Kaufmann, M.; Krieger, K.; Lackner, K.; Mertens, V.; Neu, R.; Ryter, F.; Schweinzer, J.; Stäbler, A.; Suttrop, W.; Wolf, R.; Asmussen, K.; Bard, A.; Becker, G.; Behler, K.; Behringer, K.; Bergmann, A.; Bessenrodt-Weberpals, M.; Borrass, K.; Braams, B.; Brambilla, M.; Brandenburg, R.; Braun, F.; Brinkschulte, H.; Brückner, R.; Brüsehaber, B.; Büchl, K.; Buhler, A.; Callaghan, H. P.; Carlson, A.; Coster, D. P.; Cupido, L.; de Peña Hempel, S.; Dorn, C.; Drube, R.; Dux, R.; Egorov, S.; Engelhardt, W.; Fahrbach, H.-U.; Fantz, U.; Feist, H.-U.; Franzen, P.; Fuchs, J. C.; Fussmann, G.; Gafert, J.; Gantenbein, G.; Gehre, O.; Geier, A.; Gernhardt, J.; Gubanka, E.; Gude, A.; Haas, G.; Hallatschek, K.; Hartmann, D.; Heinemann, B.; Herppich, G.; Herrmann, W.; Hofmeister, F.; Holzhauer, E.; Jacobi, D.; Kakoulidis, M.; Karakatsanis, N.; Kardaun, O.; Khutoretski, A.; Kollotzek, H.; Kötterl, S.; Kraus, W.; Kurzan, B.; Kyriakakis, G.; Lang, P. T.; Lang, R. S.; Laux, M.; Lengyel, L. L.; Leuterer, F.; Lorenz, A.; Maier, H.; Manso, M.; Maraschek, M.; Markoulaki, M.; Mast, K.-F.; McCarthy, P. J.; Meisel, D.; Meister, H.; Merkel, R.; Meskat, J. P.; Müller, H. W.; Münich, M.; Murmann, H.; Napiontek, B.; Neu, G.; Neuhauser, J.; Niethammer, M.; Noterdaeme, J.-M.; Pautasso, G.; Peeters, A. G.; Pereverzev, G.; Pinches, S.; Raupp, G.; Reinmüller, K.; Riedl, R.; Rohde, V.; Röhr, H.; Roth, J.; Salzmann, H.; Sandmann, W.; Schilling, H.-B.; Schlögl, D.; Schmidtmann, K.; Schneider, H.; Schneider, R.; Schneider, W.; Schramm, G.; Schweizer, S.; Schwörer, R. R.; Scott, B. D.; Seidel, U.; Serra, F.; Sesnic, S.; Sihler, C.; Silva, A.; Speth, E.; Steuer, K.-H.; Stober, J.; Streibl, B.; Thoma, A.; Treutterer, W.; Troppmann, M.; Tsois, N.; Ullrich, W.; Ulrich, M.; Varela, P.; Verbeek, H.; Vollmer, O.; Wedler, H.; Weinlich, M.; Wenzel, U.; Wesner, F.; Wunderlich, R.; Xantopoulos, N.; Yu, Q.; Zasche, D.; Zehetbauer, T.; Zehrfeld, H.-P.; Zohm, H.; Zouhar, M.

    1999-09-01

    The closed ASDEX Upgrade Divertor II, `LYRA', is capable of handling heating powers of up to 20 MW or P/R of 12 MW/m, owing to a reduction of the maximum heat flux to the target plates by more than a factor of 2 compared with the open Divertor I. This reduction is caused by high radiative losses from carbon and hydrogen inside the divertor region and is in agreement with B2-EIRENE modelling predictions. At medium densities in the H mode, the type I ELM behaviour shows no dependence on the heating method (NBI, ICRH). ASDEX Upgrade-JET dimensionless identity experiments showed compatibility of the L-H transition with core physics constraints, while in the H mode confinement, inconsistencies with the invariance principle were established. At high densities close to the Greenwald density, the MHD limited edge pressures, the influence of divertor detachment on separatrix parameters and increasing edge transport lead to limited edge densities and finally to temperatures below the critical edge temperatures for H mode. This results in a drastic increase of the H mode threshold power and an upper H mode density limit with gas puff refuelling. The H mode confinement degradation approaching this density limit is caused by the ballooning mode limited edge pressures and `stiff' temperature profiles relating core and edge temperatures. Repetitive high field side pellet injection allows for H mode operation well above the Greenwald density; moreover, higher confinement than with gas fuelling is found up to the highest densities. Neoclassical tearing modes limit the achievable β depending on the collisionality at the resonant surface. In agreement with the polarization current model, the onset β is found to be proportional to the ion gyroradius in the collisionless regime, while higher collisionalities are stabilizing. The fractional energy loss connected with saturated modes at high pressures is about 25%. A reduction of neoclassical mode amplitude and an increase of β have

  11. Overview of ASDEX Upgrade results

    NASA Astrophysics Data System (ADS)

    Stroth, U.; Adamek, J.; Aho-Mantila, L.; Äkäslompolo, S.; Amdor, C.; Angioni, C.; Balden, M.; Bardin, S.; Barrera Orte, L.; Behler, K.; Belonohy, E.; Bergmann, A.; Bernert, M.; Bilato, R.; Birkenmeier, G.; Bobkov, V.; Boom, J.; Bottereau, C.; Bottino, A.; Braun, F.; Brezinsek, S.; Brochard, T.; Brüdgam, M.; Buhler, A.; Burckhart, A.; Casson, F. J.; Chankin, A.; Chapman, I.; Clairet, F.; Classen, I. G. J.; Coenen, J. W.; Conway, G. D.; Coster, D. P.; Curran, D.; da Silva, F.; de Marné, P.; D'Inca, R.; Douai, D.; Drube, R.; Dunne, M.; Dux, R.; Eich, T.; Eixenberger, H.; Endstrasser, N.; Engelhardt, K.; Esposito, B.; Fable, E.; Fischer, R.; Fünfgelder, H.; Fuchs, J. C.; Gál, K.; García Muñoz, M.; Geiger, B.; Giannone, L.; Görler, T.; da Graca, S.; Greuner, H.; Gruber, O.; Gude, A.; Guimarais, L.; Günter, S.; Haas, G.; Hakola, A. H.; Hangan, D.; Happel, T.; Härtl, T.; Hauff, T.; Heinemann, B.; Herrmann, A.; Hobirk, J.; Höhnle, H.; Hölzl, M.; Hopf, C.; Houben, A.; Igochine, V.; Ionita, C.; Janzer, A.; Jenko, F.; Kantor, M.; Käsemann, C.-P.; Kallenbach, A.; Kálvin, S.; Kantor, M.; Kappatou, A.; Kardaun, O.; Kasparek, W.; Kaufmann, M.; Kirk, A.; Klingshirn, H.-J.; Kocan, M.; Kocsis, G.; Konz, C.; Koslowski, R.; Krieger, K.; Kubic, M.; Kurki-Suonio, T.; Kurzan, B.; Lackner, K.; Lang, P. T.; Lauber, P.; Laux, M.; Lazaros, A.; Leipold, F.; Leuterer, F.; Lindig, S.; Lisgo, S.; Lohs, A.; Lunt, T.; Maier, H.; Makkonen, T.; Mank, K.; Manso, M.-E.; Maraschek, M.; Mayer, M.; McCarthy, P. J.; McDermott, R.; Mehlmann, F.; Meister, H.; Menchero, L.; Meo, F.; Merkel, P.; Merkel, R.; Mertens, V.; Merz, F.; Mlynek, A.; Monaco, F.; Müller, S.; Müller, H. W.; Münich, M.; Neu, G.; Neu, R.; Neuwirth, D.; Nocente, M.; Nold, B.; Noterdaeme, J.-M.; Pautasso, G.; Pereverzev, G.; Plöckl, B.; Podoba, Y.; Pompon, F.; Poli, E.; Polozhiy, K.; Potzel, S.; Püschel, M. J.; Pütterich, T.; Rathgeber, S. K.; Raupp, G.; Reich, M.; Reimold, F.; Ribeiro, T.; Riedl, R.; Rohde, V.; Rooij, G. v.; Roth, J.; Rott, M.; Ryter, F.; Salewski, M.; Santos, J.; Sauter, P.; Scarabosio, A.; Schall, G.; Schmid, K.; Schneider, P. A.; Schneider, W.; Schrittwieser, R.; Schubert, M.; Schweinzer, J.; Scott, B.; Sempf, M.; Sertoli, M.; Siccinio, M.; Sieglin, B.; Sigalov, A.; Silva, A.; Sommer, F.; Stäbler, A.; Stober, J.; Streibl, B.; Strumberger, E.; Sugiyama, K.; Suttrop, W.; Tala, T.; Tardini, G.; Teschke, M.; Tichmann, C.; Told, D.; Treutterer, W.; Tsalas, M.; Van Zeeland, M. A.; Varela, P.; Veres, G.; Vicente, J.; Vianello, N.; Vierle, T.; Viezzer, E.; Viola, B.; Vorpahl, C.; Wachowski, M.; Wagner, D.; Wauters, T.; Weller, A.; Wenninger, R.; Wieland, B.; Willensdorfer, M.; Wischmeier, M.; Wolfrum, E.; Würsching, E.; Yu, Q.; Zammuto, I.; Zasche, D.; Zehetbauer, T.; Zhang, Y.; Zilker, M.; Zohm, H.

    2013-10-01

    The medium size divertor tokamak ASDEX Upgrade (major and minor radii 1.65 m and 0.5 m, respectively, magnetic-field strength 2.5 T) possesses flexible shaping and versatile heating and current drive systems. Recently the technical capabilities were extended by increasing the electron cyclotron resonance heating (ECRH) power, by installing 2 × 8 internal magnetic perturbation coils, and by improving the ion cyclotron range of frequency compatibility with the tungsten wall. With the perturbation coils, reliable suppression of large type-I edge localized modes (ELMs) could be demonstrated in a wide operational window, which opens up above a critical plasma pedestal density. The pellet fuelling efficiency was observed to increase which gives access to H-mode discharges with peaked density profiles at line densities clearly exceeding the empirical Greenwald limit. Owing to the increased ECRH power of 4 MW, H-mode discharges could be studied in regimes with dominant electron heating and low plasma rotation velocities, i.e. under conditions particularly relevant for ITER. The ion-pressure gradient and the neoclassical radial electric field emerge as key parameters for the transition. Using the total simultaneously available heating power of 23 MW, high performance discharges have been carried out where feed-back controlled radiative cooling in the core and the divertor allowed the divertor peak power loads to be maintained below 5 MW m-2. Under attached divertor conditions, a multi-device scaling expression for the power-decay length was obtained which is independent of major radius and decreases with magnetic field resulting in a decay length of 1 mm for ITER. At higher densities and under partially detached conditions, however, a broadening of the decay length is observed. In discharges with density ramps up to the density limit, the divertor plasma shows a complex behaviour with a localized high-density region in the inner divertor before the outer divertor detaches

  12. Recent Opportunity Microscopic Imager Results

    NASA Astrophysics Data System (ADS)

    Herkenhoff, K. E.; Arvidson, R. E.; Jolliff, B. L.; Yingst, R.; Team, A.

    2013-12-01

    Opportunity. The extremely soft bedrock exposed at a Whitewater Lake outcrop target dubbed 'Azilda' is mostly fine-grained, with dispersed 2-5 mm-diameter spherules and resistant veins. This target was easily abraded by the RAT, exposing a sandstone-like texture, but the sorting of grains is difficult to determine at MI resolution. Darker, erosion-resistant veneers, similar to desert varnishes on Earth, appear to record aqueous alteration that post-dates the formation of the Ca sulfate veins; they likely contain the nontronite that is observed by CRISM in this area. The inferred neutral pH and relatively low temperature of the fluids involved in these phases of alteration would have provided a habitable environment for life if it existed on Mars at that time. Because Opportunity can no longer directly sense phyllosilicate mineralogy with the MiniTES or Mössbauer spectrometers, it is focusing on characterizing the chemistry with the APXS and texture with the MI of potential phyllosilicate host rocks. The Athena MI continues to return useful images of Mars that are being used to study the textures of rocks and soils at Endeavour crater. Exploration by Opportunity continues, with the rover approaching 'Solander Point' and more exposures of phyllosilicates detected from orbit; the latest MI results will be presented at the conference.

  13. Overview of ASDEX Upgrade results

    NASA Astrophysics Data System (ADS)

    Gruber, O.; Arslanbekov, R.; Atanasiu, C.; Bard, A.; Becker, G.; Becker, W.; Beckmann, M.; Behler, K.; Behringer, K.; Bergmann, A.; Bilato, R.; Bolshukin, D.; Borrass, K.; Bosch, H.-S.; Braams, B.; Brambilla, M.; Brandenburg, R.; Braun, F.; Brinkschulte, H.; Brückner, R.; Brüsehaber, B.; Büchl, K.; Buhler, A.; Bürbaumer, H.; Carlson, A.; Ciric, M.; Conway, G.; Coster, D. P.; Dorn, C.; Drube, R.; Dux, R.; Egorov, S.; Engelhardt, W.; Fahrbach, H.-U.; Fantz, U.; Faugel, H.; Foley, M.; Franzen, P.; Fu, P.; Fuchs, J. C.; Gafert, J.; Gantenbein, G.; Gehre, O.; Geier, A.; Gernhardt, J.; Gubanka, E.; Gude, A.; Günter, S.; Haas, G.; Hartmann, D.; Heinemann, B.; Herrmann, A.; Hobirk, J.; Hofmeister, F.; Hohenöcker, H.; Horton, L.; Hu, L.; Jacobi, D.; Jakobi, M.; Jenko, F.; Kallenbach, A.; Kardaun, O.; Kaufmann, M.; Kendl, A.; Kim, J.-W.; Kirov, K.; Kochergov, R.; Kollotzek, H.; Kraus, W.; Krieger, K.; Kurzan, B.; Kyriakakis, G.; Lackner, K.; Lang, P. T.; Lang, R. S.; Laux, M.; Lengyel, L.; Leuterer, F.; Lorenz, A.; Maier, H.; Mank, K.; Manso, M.-E.; Maraschek, M.; Mast, K.-F.; McCarthy, P. J.; Meisel, D.; Meister, H.; Meo, F.; Merkel, R.; Mertens, V.; Meskat, J. P.; Monk, R.; Müller, H. W.; Münich, M.; Murmann, H.; Neu, G.; Neu, R.; Neuhauser, J.; Noterdaeme, J.-M.; Nunes, I.; Pautasso, G.; Peeters, A. G.; Pereverzev, G.; Pinches, S.; Poli, E.; Pugno, R.; Raupp, G.; Ribeiro, T.; Riedl, R.; Riondato, S.; Rohde, V.; Röhr, H.; Roth, J.; Ryter, F.; Salzmann, H.; Sandmann, W.; Sarelma, S.; Schade, S.; Schilling, H.-B.; Schlögl, D.; Schmidtmann, K.; Schneider, R.; Schneider, W.; Schramm, G.; Schweinzer, J.; Schweizer, S.; Scott, B. D.; Seidel, U.; Serra, F.; Sesnic, S.; Sihler, C.; Silva, A.; Sips, A.; Speth, E.; Stäbler, A.; Steuer, K.-H.; Stober, J.; Streibl, B.; Strumberger, E.; Suttrop, W.; Tabasso, A.; Tanga, A.; Tardini, G.; Tichmann, C.; Treutterer, W.; Troppmann, M.; Tsois, N.; Ullrich, W.; Ulrich, M.; Varela, P.; Vollmer, O.; Wenzel, U.; Wesner, F.; Wolf, R.; Wolfrum, E.; Wunderlich, R.; Xantopoulos, N.; Yu, Q.; Zarrabian, M.; Zasche, D.; Zehetbauer, T.; Zehrfeld, H.-P.; Zeiler, A.; Zohm, H.

    2001-10-01

    Ion and electron temperature profiles in conventional L and H mode on ASDEX Upgrade are generally stiff and limited by a critical temperature gradient length ∇T/T as given by ion temperature gradient (ITG) driven turbulence. ECRH experiments indicate that electron temperature (Te) profiles are also stiff, as predicted by electron temperature gradient turbulence with streamers. Accordingly, the core and edge temperatures are proportional to each other and the plasma energy is proportional to the pedestal pressure for fixed density profiles. Density profiles are not stiff, and confinement improves with density peaking. Medium triangularity shapes (δ<0.45) show strongly improved confinement up to the Greenwald density nGW and therefore higher βvalues, owing to increasing pedestal pressure, and H mode density operation extends above nGW. Density profile peaking at nGW was achieved with controlled gas puffing rates, and first results from a new high field side pellet launcher allowing higher pellet velocities are promising. At these high densities, small type II ELMs provide good confinement with low divertor power loading. In advanced scenarios the highest performance was achieved in the improved H mode with HL-89PβN approx 7.2 at δ = 0.3 for five confinement times, limited by neoclassical tearing modes (NTMs) at low central magnetic shear (qmin approx 1). The T profiles are still governed by ITG and trapped electron mode (TEM) turbulence, and confinement is improved by density peaking connected with low magnetic shear. Ion internal transport barrier (ITB) discharges - mostly with reversed shear (qmin>1) and L mode edge - achieved HL-89P <= 2.1 and are limited to βN <= 1.7 by internal and external ideal MHD modes. Turbulence driven transport is suppressed, in agreement with the E × B shear flow paradigm, and core transport coefficients are at the neoclassical ion transport level, where the latter was established by Monte Carlo simulations. Reactor relevant ion

  14. An overview of KSTAR results

    NASA Astrophysics Data System (ADS)

    Kwak, Jong-Gu; Oh, Y. K.; Yang, H. L.; Park, K. R.; Kim, Y. S.; Kim, W. C.; Kim, J. Y.; Lee, S. G.; Na, H. K.; Kwon, M.; Lee, G. S.; Ahn, H. S.; Ahn, J.-W.; Bae, Y. S.; Bak, J. G.; Bang, E. N.; Chang, C. S.; Chang, D. H.; Chen, Z. Y.; Cho, K. W.; Cho, M. H.; Choi, M.; Choe, W.; Choi, J. H.; Chu, Y.; Chung, K. S.; Diamond, P.; Delpech, L.; Do, H. J.; Eidietis, N.; England, A. C.; Ellis, R.; Evans, T.; Choe, G.; Grisham, L.; Gorelov, Y.; Hahn, H. S.; Hahn, S. H.; Han, W. S.; Hatae, T.; Hillis, D.; Hoang, T.; Hong, J. S.; Hong, S. H.; Hong, S. R.; Hosea, J.; Humphreys, D.; Hwang, Y. S.; Hyatt, A.; Ida, K.; In, Y. K.; Ide, S.; Jang, Y. B.; Jeon, Y. M.; Jeong, J. I.; Jeong, N. Y.; Jeong, S. H.; Jin, J. K.; Joung, M.; Ju, J.; Kawahata, K.; Kim, C. H.; Kim, Hee-Su; Kim, H. S.; Kim, H. J.; Kim, H. K.; Kim, H. T.; Kim, J. H.; Kim, J.; Kim, J. C.; Kim, Jong-Su; Kim, Jung-Su; Kim, J. H.; Kim, Kyung-Min; Kim, K. J.; Kim, K. P.; Kim, M. K.; Kim, S. T.; Kim, S. W.; Kim, Y. J.; Kim, Y. K.; Kim, Y. O.; Ko, J. S.; Ko, W. H.; Kogi, Y.; Kolemen, E.; Kong, J. D.; Kwak, S. W.; Kwon, J. M.; Kwon, O. J.; Lee, D. G.; Lee, D. R.; Lee, D. S.; Lee, H. J.; Lee, J.; Lee, J. H.; Lee, K. D.; Lee, K. S.; Lee, S. H.; Lee, S. I.; Lee, S. M.; Lee, T. G.; Lee, W.; Lee, W. L.; Lim, D. S.; Litaudon, X.; Lohr, J.; Mueller, D.; Moon, K. M.; Na, D. H.; Na, Y. S.; Nam, Y. U.; Namkung, W.; Narihara, K.; Oh, S. T.; Oh, D. G.; Ono, T.; Park, B. H.; Park, D. S.; Park, G. Y.; Park, H.; Park, H. T.; Park, J. K.; Park, J. S.; Park, M. K.; Park, S. H.; Park, S.; Park, Y. M.; Park, Y. S.; Parker, R.; Rhee, D. R.; Sabbagh, S. A.; Sakamoto, K.; Shiraiwa, S.; Seo, D. C.; Seo, S. H.; Seol, J. C.; Shi, Y. J.; Son, S. H.; Song, N. H.; Suzuki, T.; Terzolo, L.; Walker, M.; Wallace, G.; Watanabe, K.; Wang, S. J.; Woo, H. J.; Woo, I. S.; Yagi, M.; Yu, Y. W.; Yamada, I.; Yonekawa, Y.; Yoo, C. M.; You, K. I.; Yoo, J. W.; Yun, G. S.; Yu, M. G.; Yoon, S. W.; Xiao, W.; Zoletnik, S.; the KSTAR Team

    2013-10-01

    Since the first H-mode discharges in 2010, the duration of the H-mode state has been extended and a significantly wider operational window of plasma parameters has been attained. Using a second neutral beam (NB) source and improved tuning of equilibrium configuration with real-time plasma control, a stored energy of Wtot ˜ 450 kJ has been achieved with a corresponding energy confinement time of τE ˜ 163 ms. Recent discharges, produced in the fall of 2012, have reached plasma βN up to 2.9 and surpassed the n = 1 ideal no-wall stability limit computed for H-mode pressure profiles, which is one of the key threshold parameters defining advanced tokamak operation. Typical H-mode discharges were operated with a plasma current of 600 kA at a toroidal magnetic field BT = 2 T. L-H transitions were obtained with 0.8-3.0 MW of NB injection power in both single- and double-null configurations, with H-mode durations up to ˜15 s at 600 kA of plasma current. The measured power threshold as a function of line-averaged density showed a roll-over with a minimum value of ˜0.8 MW at \\bar{n}_e\\sim 2\\times 10^{19}\\,m^{-3} . Several edge-localized mode (ELM) control techniques during H-mode were examined with successful results including resonant magnetic perturbation, supersonic molecular beam injection (SMBI), vertical jogging and electron cyclotron current drive injection into the pedestal region. We observed various ELM responses, i.e. suppression or mitigation, depending on the relative phase of in-vessel control coil currents. In particular, with the 90° phase of the n = 1 RMP as the most resonant configuration, a complete suppression of type-I ELMs was demonstrated. In addition, fast vertical jogging of the plasma column was also observed to be effective in ELM pace-making. SMBI-mitigated ELMs, a state of mitigated ELMs, were sustained for a few tens of ELM periods. A simple cellular automata (‘sand-pile’) model predicted that shallow deposition near the pedestal

  15. SMOS first results over land

    NASA Astrophysics Data System (ADS)

    Kerr, Yann; Waldteufel, Philippe; Cabot, François; Richaume, Philippe; Jacquette, Elsa; Bitar, Ahmad Al; Mamhoodi, Ali; Delwart, Steven; Wigneron, Jean-Pierre

    2010-05-01

    retrieve soil moisture over fairly large and thus inhomogeneous areas. The retrieval is carried out at nodes of a fixed Earth surface grid. To achieve this purpose, after checking input data quality and ingesting auxiliary data, the retrieval process per se can be initiated. This cannot be done blindly as the direct model will be dependent upon surface characteristics. It is thus necessary to first assess what is the dominant land use of a node. For this, an average weighing function (MEAN_WEF) which takes into account the "antenna"pattern is run over the high resolution land use map to assess the dominant cover type. This is used to drive the decision tree which, step by step, selects the type of model to be used as per surface conditions. All this being said and done the retrieval procedure starts if all the conditions are satisfied, ideally to retrieve 3 parameters over the dominant class (the so-called rich retrieval). If the algorithm does not converge satisfactorily, a new trial is made with less floating parameters ("poorer retrieval") until either results are satisfactory or the algorithm is considered to fail. The retrieval algorithm also delivers whenever possible a dielectric constant parameter (using the-so called cardioid approach). Finally, once the retrieval converged, it is possible to compute the brightness temperature at a given fixed angle (42.5°) using the selected forward models applied to the set of parameters obtained at the end of the retrieval process. So the output product of the level 2 soil moisture algorithm should be node position, soil moisture, dielectric constants, computed brightness temperature at 42.5°, flags and quality indices. During the presentation we will describe in more details the algorithm and accompanying work in particular decision tree principle and characteristics, the auxiliary data used and the special and "exotic"cases. We will also be more explicit on the algorithm validation and verification through the data

  16. Final report from VFL Technologies for the pilot-scale thermal treatment of Lower East Fork Poplar Creek floodplain soils. LEFPC Appendices, Volume 3, Appendix V-B

    SciTech Connect

    1994-09-01

    This report consists of appendix V-B which contains the final verification run data package. Validation of analytical data is presented for Ecotek LSI. Analytical results are included of both soil and creek bed samples for the following contaminants: metals; metals (TCLP); uranium; gross alpha/beta; and polychlorinated biphenyls.

  17. Results, Results, Results?

    ERIC Educational Resources Information Center

    Wallace, Dale

    2000-01-01

    Given the amount of time, energy, and money devoted to provincial achievement exams in Canada, it is disturbing that Alberta students and teachers feel so pressured and that the exams do not accurately reflect what students know. Research shows that intelligence has an (untested) emotional component. (MLH)

  18. Nutrition potential of biogas residues as organic fertilizer regarding the speciation and leachability of inorganic metal elements.

    PubMed

    Zhu, Neng-min; Luo, Tao; Guo, Xu-jing; Zhang, Hui; Deng, Yu

    2015-01-01

    Biogas residues (BRs) are prospective organic fertilizer sources for agricultural cultivation. Besides N and P, however, other inorganic metal elements, such as K, Fe, Cu, Zn and so on, also affect the nutritional level of BRs significantly. In this study, a sequential extraction procedure (SEP) combined with a toxicity characteristic leaching procedure (TCLP) was conducted to investigate the speciation and leachability of metal components in BRs. The results showed that element K was the most effective nutrient component due to its largest available fraction and highest mobility factor (MF) of 78.4, whereas phytotoxic Al was the most stable and inert element in terms of its 96.68% residual fraction. Ca and Mg could be viewed as potential nutrient sources because their MFs exceeded 60. TCLP results revealed that these BRs could be classed as non-toxic organic waste but Cu and Zn should be paid more attention in that their total contents were beyond the permissible values. Meanwhile, more concerns should be given to Ni and Pb due to their large TCLP extractable fraction. In conclusion, these BRs can be used as a prospective nutrient pool for agricultural cultivation. SEP combined with TCLP can be effectively applied for assessing the nutrient level of the BRs as organic fertilizer for agricultural use.

  19. Preliminary Evaluation of Animal Bone Char as Potential Metal Stabilization Agent in Metal Contaminated Soil.

    PubMed

    Gruden, Evelin; Bukovec, Peter; Zupančič, Marija

    2017-09-01

    The aim of this study was to evaluate the potential effect of animal bone char (ABC) addition on metal mobility in mine tailings. The mobility of metals after addition of ABC to tailings at four different application rates (0.6 g, 1.2 g, 1.8 g and 3.6 g ABC per 100 g of tailings) was evaluated by Toxicity Characteristic Leaching Procedure (TCLP) one step extraction. The obtained results indicated that the mobility of Pb, Cr and Cd gradually decreased with increasing quantity of added ABC. According to the TCLP, mobile concentrations of Pb in tailings exceeded threshold values for almost eight times. After ABC addition, Pb TCLP-extractable concentrations decreased from 39 mg L-1 in tailings to lower than the TCLP limit values of 5 mg L-1 at all ABC application rates, except in mixtures with the lowest addition of ABC. We concluded that ABC could be a successful metal stabilization agent for multi-metal contaminated soil, although attention should be paid at highly As contaminated soil.

  20. Determination of the toxicity characteristic for metals in soil: A comparison of the toxicity characteristic leaching procedure and total metal determination

    SciTech Connect

    Bass, D.A.; Taylor, J.D.

    1994-12-01

    A comparison is made of the concentrations of metals extracted from soils using the Toxicity Characteristic Leaching Procedure (TCLP) and a total determination method. This information is of interest in two ways. First, it is hoped that a relationship might be established between the amount of each metal determined after extraction by the TCLP and the amount determined using a total determination method. And second, data are also presented which indicate the general extractability of various metals in soil samples using the TCLP. This study looks specifically at inorganic elements (Sb, As, Ba, Cd, Cu, Cr, Pb, Mg, Hg, Se, Ag, Sn, and Zn) in soils from a firing range. Results show that total determination methods for metals can not generally be used for heterogeneous samples, such as soil samples from a firing range. Some correlation between a total determination method and TCLP was observed when Ba and Cd were present in the samples at lower concentrations (less than 80 mg/kg for Ba and less than 25 mg/kg for Cd); however, additional data are necessary to verify this correlation.

  1. Copper leaching from brake wear debris in standard extraction solutions.

    PubMed

    Hur, Jin; Yim, Soobin; Schlautman, Mark A

    2003-10-01

    Quantification of the copper content of and copper leaching from a disc brake wear debris sample was performed using microwave-assisted acid digestion, the Federal Toxicity Characteristic Leaching Procedure (TCLP), and the State of California Waste Extraction Test (WET). The brake wear debris tested was a composite sample obtained from a brake dynamometer test of one brake pad source material. Comparative digestion studies demonstrated that a modified aqua regia matrix (HNO3:HCl:H2O2 = 1:3:0.5) optimized the digestion effectiveness for determining the total copper content in the brake wear debris. No significant sample heterogeneity within the brake wear debris was observed, based on statistically indistinguishable total copper content results for subsamples with a wide range of sample masses. Upon pooling all subsample results, an overall total copper content for the composite brake wear debris sample was determined to be 10.8% (g/g), with a 95% confidence limit of +/- 0.5% (g/g). Copper leaching increased with decreasing solid-to-liquid ratios in TCLP tests, but was unaffected by the solid-to-liquid ratio in the WET. For a 1:10(4) (g/g) solid-to-liquid ratio, 85% and 99% of the total mass of copper present in the composite brake wear debris sample was leached into solution during the TCLP and WET, respectively. Rate studies also demonstrated that the WET resulted in a faster rate and higher extent of copper leaching relative to the TCLP. Compared to reference copper-containing materials, the composite brake wear debris sample exhibited relatively higher TCLP and WET copper leaching characteristics. The higher copper leaching exhibited by the brake wear debris sample may have resulted from its higher specific surface area and/or from changes in the chemical form of copper that occurred during the braking process.

  2. Toxicity characteristic leaching procedure over- or under-estimates leachability of lead in phosphate-amended contaminated soils.

    PubMed

    Sima, Jingke; Cao, Xinde; Zhao, Ling; Luo, Qishi

    2015-11-01

    In this study, Pb(NO3)2-, PbSO4-, or PbCO3-contaminated soils were treated with triple super phosphate (TSP) or phosphate rock (PR) and then subjected to the toxicity characteristic leaching procedure (TCLP) to assess Pb leachability. Soluble TSP resulted in the transformation of Pb into insoluble Pb phosphate precipitates in all contaminated soils, and the transformation increased with extended leaching times. Consequently, Pb concentrations in the TCLP leachates treated with TSP were reduced by 97.3-99.7% compared with the untreated soils, and Pb leaching decreased over the extraction time and did not reach equilibrium even after 96 h of extraction. Precipitation of Pb phosphate minerals in the less soluble PR-treated soil was limited, and Pb leaching was controlled by the dissolution of the Pb compounds, resulting in elevation of Pb in the TCLP leachate. Pb leaching continued to increase with time due to continuous dissolution of PbSO4 and PbCO3. The results indicated that Pb leaching is kinetically controlled by either Pb compound dissolution or phosphate mineral formation. The standard TCLP test using a designated 18 h incubation time can overestimate the leachability of Pb in soils contaminated with lead and amended with soluble TSP and underestimate the leachability of Pb in soils contaminated with Pb and amended with less soluble PR. Therefore, wide use of TCLP for assessing Pb leachability in all contaminated soils is insufficient, and development of a site-specific evaluation method is urgently needed. Copyright © 2015 Elsevier Ltd. All rights reserved.

  3. Mineralogy and heavy metal leachability of magnetic fractions separated from some Chinese coal fly ashes.

    PubMed

    Lu, S G; Chen, Y Y; Shan, H D; Bai, S Q

    2009-09-30

    Magnetic fractions (MFs) in fly ashes from eight coal-burning power plants were extracted by magnetic separation procedure. Their mineralogy and potential leachability of heavy metals were analyzed using rock magnetism, X-ray diffraction (XRD), scanning electron microscopy equipped with energy-dispersive X-ray spectroscopy (SEM/EDX) and leaching procedures (toxicity characteristics leaching procedure by the United States Environmental Protection Agency, TCLP, and gastric juice simulation test, GJST). Results show that the MFs in the fly ashes range between 2.2 and 16.3wt%, and are generally composed of magnetite, hematite, quartz and mullite. Thermomagnetic analysis and SEM/EDX indicate that the main magnetic carrier magnetite is substituted with small amounts of impure ions, and its structures are featured by rough, dendritic and granular iron spherules. The MFs are found to be rich in Fe, Mn, Cr, Cu, Cd and Pb. Compared with the non-magnetic fractions (NMFs), the MFs have about 5 times higher iron, and 1.6 times higher Mn, Cr, Cu and Cd concentrations. The TCLP test shows that the TCLP-extractable Cr, Cu, and Pb concentrations in the MFs are higher than those in the NMFs, while the TCLP-extractable Cd concentration in the MFs and NMFs is below the detection limit (<0.1mg/L). The GJST-extractable Cd, Cr, Cu, and Pb concentrations in the MFs are higher those in the NMFs. No significant difference in the leachability ratio of Cr, Cu and Pb with TCLP and GJST is found in the MFs and NMFs. However, the GJST test showed that Pb has higher leachability in MFs than that in NMFs. The leachability ratio of heavy metals has an order of Cu>Cr>Pb>Cd. The heavy metals of fly ashes have a great potential to be released into the environment under acid environment.

  4. 16 CFR 1610.8 - Reporting results.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... FLAMMABILITY OF CLOTHING TEXTILES The Standard § 1610.8 Reporting results. (a) The reported result shall be the... following are the definitions for the test result codes, which shall be used for recording...

  5. 16 CFR 1610.8 - Reporting results.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... FLAMMABILITY OF CLOTHING TEXTILES The Standard § 1610.8 Reporting results. (a) The reported result shall be the... following are the definitions for the test result codes, which shall be used for recording...

  6. Measuring Satisfaction with Mammography Results Reporting

    PubMed Central

    Dolan, Nancy C; Feinglass, Joe; Priyanath, Aparna; Haviley, Corrine; Sorensen, Asta V; Venta, Luz A

    2001-01-01

    OBJECTIVE To assess factors associated with patient satisfaction with communication of mammography results and their understanding and ability to recall these results. DESIGN Cross-sectional telephone survey. SETTING Academic breast imaging center. PATIENTS Two hundred ninety-eight patients who had either a screening or diagnostic mammogram. MEASUREMENTS AND MAIN RESULTS Survey items assessed waiting time for results, anxiety about results, satisfaction with several components of results reporting, and patients' understanding of results and recommendations. Women undergoing screening exams were more likely to be dissatisfied with the way the results were communicated than those who underwent diagnostic exams and received immediate results (20% vs 11%, P = .05). For these screening patients, waiting for more than two weeks for notification of results, difficulty getting in touch with someone to answer questions, low ratings of how clearly results were explained, and considerable or extreme anxiety about the results were all independently associated with dissatisfaction with the way the results were reported, while age and actual exam result were not. CONCLUSIONS Patients undergoing screening mammograms were more likely to be dissatisfied with the way the results were communicated than were those who underwent diagnostic mammograms. Interventions to reduce the wait time for results, reduce patients' anxiety, and improve the clarity with which the results and recommendations are given may help improve overall satisfaction with mammography result reporting. PMID:11318910

  7. 16 CFR 1610.8 - Reporting results.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... FLAMMABILITY OF CLOTHING TEXTILES The Standard § 1610.8 Reporting results. (a) The reported result shall be the... shall be placed in the proper final classification as described in § 1610.4. (b) Test result codes. The following are the definitions for the test result codes, which shall be used for recording flammability...

  8. Validating Laboratory Results in Electronic Health Records

    PubMed Central

    Perrotta, Peter L.; Karcher, Donald S.

    2017-01-01

    Context Laboratories must ensure that the test results and pathology reports they transmit to a patient’s electronic health record (EHR) are accurate, complete, and presented in a useable format. Objective To determine the accuracy, completeness, and formatting of laboratory test results and pathology reports transmitted from the laboratory to the EHR. Design Participants from 45 institutions retrospectively reviewed results from 16 different laboratory tests, including clinical and anatomic pathology results, within the EHR used by their providers to view laboratory results. Results were evaluated for accuracy, presence of required elements, and usability. Both normal and abnormal results were reviewed for tests, some of which were performed in-house and others at a reference laboratory. Results Overall accuracy for test results transmitted to the EHR was greater than 99.3% (1052 of 1059). There was lower compliance for completeness of test results, with 69.6% (732 of 1051) of the test results containing all essential reporting elements. Institutions that had fewer than half of their orders entered electronically had lower test result completeness rates. The rate of appropriate formatting of results was 90.9% (98 of 1010). Conclusions The great majority of test results are accurately transmitted from the laboratory to the EHR; however, lower percentages are transmitted completely and in a useable format. Laboratories should verify the accuracy, completeness, and format of test results at the time of test implementation, after test changes, and periodically. PMID:27575266

  9. ResultMaps: visualization for search interfaces.

    PubMed

    Clarkson, Edward; Desai, Krishna; Foley, James

    2009-01-01

    Hierarchical representations are common in digital repositories, yet are not always fully leveraged in their online search interfaces. This work describes ResultMaps, which use hierarchical treemap representations with query string-driven digital library search engines. We describe two lab experiments, which find that ResultsMap users yield significantly better results over a control condition on some subjective measures, and we find evidence that ResultMaps have ancillary benefits via increased understanding of some aspects of repository content. The ResultMap system and experiments contribute an understanding of the benefits--direct and indirect--of the ResultMap approach to repository search visualization.

  10. FY 2012 Pollution Prevention Grant Results Summary

    EPA Pesticide Factsheets

    The Pollution Prevention Program reports the environmental results of grants. These grants produce annual environmental results in pounds of hazardous materials reduced, BTUs of energy, water and dollars saved.

  11. Symposium on Recent Results in Infrared Astrophysics

    NASA Technical Reports Server (NTRS)

    Dyal, P. (Editor)

    1977-01-01

    Abstracts of papers presented at a symposium titled Recent Results in Infrared Astrophysics are set forth. The abstracts emphasize photometric, spectroscopic, polarization, and theoretical results on a broad range of current topics in infrared astrophysics.

  12. FY 2011 Pollution Prevention Grant Results Summary

    EPA Pesticide Factsheets

    The Pollution Prevention Program reports the environmental results of grants. These grants produce annual environmental results in pounds of hazardous materials reduced, BTUs of energy, water and dollars saved.

  13. FY 2013 Pollution Prevention Grant Results Summary

    EPA Pesticide Factsheets

    The Pollution Prevention Program reports the environmental results of grants. These grants produce annual environmental results in pounds of hazardous materials reduced, BTUs of energy, water and dollars saved.

  14. Notification: EPA Benefits from STAR Grant Results

    EPA Pesticide Factsheets

    Project #OPE-FY15-0017, January 15, 2015. The Office of Inspector General (OIG) for the U.S. Environmental Protection Agency (EPA) plans to begin preliminary research on results from Science to Achieve Results (STAR) grants.

  15. Ideas for Effective Communication of Statistical Results

    DOE PAGES

    Anderson-Cook, Christine M.

    2015-03-01

    Effective presentation of statistical results to those with less statistical training, including managers and decision-makers requires planning, anticipation and thoughtful delivery. Here are several recommendations for effectively presenting statistical results.

  16. FY 2014 Pollution Prevention Grant Results Summary

    EPA Pesticide Factsheets

    The Pollution Prevention Program reports the environmental results of grants. These grants produce annual environmental results in pounds of hazardous materials reduced, BTUs of energy, water and dollars saved.

  17. Ideas for Effective Communication of Statistical Results

    SciTech Connect

    Anderson-Cook, Christine M.

    2015-03-01

    Effective presentation of statistical results to those with less statistical training, including managers and decision-makers requires planning, anticipation and thoughtful delivery. Here are several recommendations for effectively presenting statistical results.

  18. Accuracy of results with NASTRAN modal synthesis

    NASA Technical Reports Server (NTRS)

    Herting, D. N.

    1978-01-01

    A new method for component mode synthesis was developed for installation in NASTRAN level 17.5. Results obtained from the new method are presented, and these results are compared with existing modal synthesis methods.

  19. Earth Radiation Budget Experiment - Preliminary seasonal results

    NASA Technical Reports Server (NTRS)

    Barkstrom, Bruce R.; Harrison, Edwin F.; Lee, Robert B., III

    1990-01-01

    Data from the Earth Radiation Budget Satellite (ERBS) and from the operational NOAA-9 satellite being placed in the archive of the earth Radiation Budget Experiment (ERBE) are discussed. The results of the ERBE data validation effort are reviewed along with ERBE solar constant observations and earth-viewing results. The latter include monthly average results for July 1985, annual average clear-sky fluxes, and annual average, zonal, and global results.

  20. The Latest Results from the ATLAS Experiment

    NASA Astrophysics Data System (ADS)

    Tsuno, S.; ATLAS Collaboration

    Recent results from the ATLAS experiment at the CERN LargeHadron Collider are presented. The experiment operates with high data taking efficiency since the first collision. The results show an excellent detector performance and rapid achievement of the ATLAS physics program. This paper provides a breif overview of the highlights of phyiscs results.

  1. Reliable results from stochastic simulation models

    Treesearch

    Donald L., Jr. Gochenour; Leonard R. Johnson

    1973-01-01

    Development of a computer simulation model is usually done without fully considering how long the model should run (e.g. computer time) before the results are reliable. However construction of confidence intervals (CI) about critical output parameters from the simulation model makes it possible to determine the point where model results are reliable. If the results are...

  2. Comparing simulation results of SBML capable simulators

    PubMed Central

    Bergmann, Frank T.; Sauro, Herbert M.

    2008-01-01

    Motivation: Simulations are an essential tool when analyzing biochemical networks. Researchers and developers seeking to refine simulation tools or develop new ones would benefit greatly from being able to compare their simulation results. Summary: We present an approach to compare simulation results between several SBML capable simulators and provide a website for the community to share simulation results. Availability: The website with simulation results and additional material can be found under: http://sys-bio.org/sbwWiki/compare. The software used to generate the simulation results is available on the website for download. Contact: fbergman@u.washington.edu PMID:18579569

  3. Current advances on polynomial resultant formulations

    NASA Astrophysics Data System (ADS)

    Sulaiman, Surajo; Aris, Nor'aini; Ahmad, Shamsatun Nahar

    2017-08-01

    Availability of computer algebra systems (CAS) lead to the resurrection of the resultant method for eliminating one or more variables from the polynomials system. The resultant matrix method has advantages over the Groebner basis and Ritt-Wu method due to their high complexity and storage requirement. This paper focuses on the current resultant matrix formulations and investigates their ability or otherwise towards producing optimal resultant matrices. A determinantal formula that gives exact resultant or a formulation that can minimize the presence of extraneous factors in the resultant formulation is often sought for when certain conditions that it exists can be determined. We present some applications of elimination theory via resultant formulations and examples are given to explain each of the presented settings.

  4. Applying DSM evaluation results to utility planning

    SciTech Connect

    Baxter, L.W.

    1995-07-01

    This paper describes the results of a study to assess the application of DSM evaluation results to utility forecasting and planning. The paper has three objectives: (1) identify forecasting and planning applications of evaluation studies, (2) identify major obstacles and problems associated with applying evaluation results to forecasting and planning, and (3) suggest approaches to address the major problems. The paper summarizes results from interviews with utilities, regulators, and consultants to determine how the utility industry currently applies evaluation results in forecasting and planning. The paper also includes results from a detailed case study of Sacramento Municipal Utility District (SMUD) and Southern California Edison Company (SCE), two utilities with large DSM programs and active evaluation efforts.

  5. Salt Block II: description and results

    SciTech Connect

    Hohlfelder, J.J.

    1980-06-01

    A description of and results from the Salt Block II experiment, which involved the heating of and measurement of water transport within a large sample of rock salt, are presented. These results include the measurement of water released into a heated borehole in the sample as well as measured temperatures within the salt. Measured temperatures are compared with the results of a mathematical model of the experiment.

  6. Innovation Impact: Breakthrough Research Results (Brochure)

    SciTech Connect

    Not Available

    2013-07-01

    The Innovation Impact brochure captures key breakthrough results across NREL's primary areas of renewable energy and energy efficiency research: solar, wind, bioenergy, transportation, buildings, analysis, and manufacturing technologies.

  7. Biosparging results: How clean is the site?

    SciTech Connect

    Billings, J.F.; Griswold, J.E.; Billings, B.G.

    1995-12-31

    Biosparging, a technique similar to air sparging but with the design intent of plume discretization with low to moderate flows per sparge point and operational patience to allow for bioremediation, is producing remediation results distancing itself from air sparging in general. While some debate the efficacy of sparging, this paper discusses results at biosparging sites that are by design and operation significantly different than results from air sparging sites. The authors have participated in biosparging projects across the country for a number of years that have resulted in a range of applications with a large database of results. To provide insight into recent debate concerning the use of water quality results at sparging sites, data from permanent monitoring wells, located 50 to 200 feet beyond the direct influence of air movement, are provided. Water quality results from wells where systems have been off from weeks to more than a year also are provided, as well as confirmation borings of soil concentrations above, at, and below the water table. Additionally, results from new borings and monitoring wells are provided for systems after shutdown. Wells undergoing active sparging/agitation can provide results indicating clean water. Attention is focused on BTEX analytes.

  8. Acceptance sampling methods for sample results verification

    SciTech Connect

    Jesse, C.A.

    1993-06-01

    This report proposes a statistical sampling method for use during the sample results verification portion of the validation of data packages. In particular, this method was derived specifically for the validation of data packages for metals target analyte analysis performed under United States Environmental Protection Agency Contract Laboratory Program protocols, where sample results verification can be quite time consuming. The purpose of such a statistical method is to provide options in addition to the ``all or nothing`` options that currently exist for sample results verification. The proposed method allows the amount of data validated during the sample results verification process to be based on a balance between risks and the cost of inspection.

  9. The XXL survey: first results and future

    NASA Astrophysics Data System (ADS)

    Pierre, M.; XXL Consortium

    2016-06-01

    We review the first results from the XXL survey (14 articles - December 2015). In the light of our recent results, we discuss the cosmological interpretation of very large X-ray cluster surveys and present a new approach to the question. We draw a roadmap for the coming decade.

  10. IPE results as compared with NUREG-1150

    SciTech Connect

    Pratt, W.T.; Lehner, J.; Camp, A.; Chow, E.

    1995-12-31

    In 1990, the NRC published NUREG-1150 which assessed the risks for five U.S. nuclear power plants. This paper provides a comparison of the results and perspectives obtained from the NUREG-1150 study to those obtained form the Individual Plant Examination (IPE) program. Specifically, results and perspectives on core damage frequency and containment performance are compared.

  11. Zbrowse: An interactive GWAS results browser

    USDA-ARS?s Scientific Manuscript database

    The growing number of genotyped populations, the advent of high-throughput phenotyping techniques and the development of GWAS analysis software has rapidly accelerated the number of GWAS experimental results. Candidate gene discovery from these results files is often tedious, involving many manual s...

  12. 40 CFR 799.12 - Test results.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 32 2014-07-01 2014-07-01 false Test results. 799.12 Section 799.12...) IDENTIFICATION OF SPECIFIC CHEMICAL SUBSTANCE AND MIXTURE TESTING REQUIREMENTS General Provisions § 799.12 Test results. Except as set forth in specific chemical test rules in subpart B of this part, a positive...

  13. 40 CFR 799.12 - Test results.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 32 2011-07-01 2011-07-01 false Test results. 799.12 Section 799.12...) IDENTIFICATION OF SPECIFIC CHEMICAL SUBSTANCE AND MIXTURE TESTING REQUIREMENTS General Provisions § 799.12 Test results. Except as set forth in specific chemical test rules in subpart B of this part, a positive...

  14. Pluto results on jets and QCD

    SciTech Connect

    Pluto collaboration

    1981-02-01

    Results obtained with the PLUTO detector at PETRA are presented. Multihadron final states have been analysed with respect to clustering, energy-energy correlations and transverse momenta in jets. QCD predictions for hard gluon emission and soft gluon-quark cascades are discussed. Results on ..cap alpha../sub s/ and the gluon spin are given.

  15. True fir spacing trials: 10-year results.

    Treesearch

    Robert O. Curtis

    2008-01-01

    Eighteen precommercial thinning trials were established in true fir-hemlock stands in the Olympic Mountains and the west side of the Cascade Range during the period 1987 through 1994. This paper updates a previous report, with results for the first 10 years after establishment. Results are given for (1) all trees, (2) the largest 80 per acre of any species, and (3)...

  16. A Westerner's Thoughts on the Referendum Results.

    ERIC Educational Resources Information Center

    Kilgour, David

    1993-01-01

    Reviews the results of the October 26, 1992, national referendum on the Canadian constitution. Describes the impact of the results on the provinces of western Canada. Concludes that a new national election should be called to resolve further the constitutional issues. (CFR)

  17. Injuries resulting from bungee-cord jumping.

    PubMed

    Hite, P R; Greene, K A; Levy, D I; Jackimczyk, K

    1993-06-01

    A 19-year-old woman sustained a nonfatal hanging injury and a 28-year-old man sustained a unilateral locked facet with resultant quadriplegia as a result of bungee jumping. Injuries due to this sport have not been reported previously.

  18. 7 CFR 1205.29 - Reporting results.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Reporting results. 1205.29 Section 1205.29 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING... Procedures for Conduct of Sign-up Period Procedures § 1205.29 Reporting results. (a) Each county FSA office...

  19. Supporting Public Access to Research Results

    ERIC Educational Resources Information Center

    Lapinski, P. Scott; Osterbur, David; Parker, Joshua; McCray, Alexa T.

    2014-01-01

    We posed the question of what services an academic library can best provide to support the NIH Public Access Policy. We approached the answer to this question through education, collaboration, and tool-building. As a result, over the last four years we have engaged over 1,500 participants in discussions of public access to research results, forged…

  20. Getting to Results. Closing the Achievement Gap

    ERIC Educational Resources Information Center

    Read, Tory

    2008-01-01

    The "Closing the Achievement Gap" series explores the Casey Foundation's education investments and presents stories, results, and lessons learned. This publication describes efforts to develop a flexible but rigorous results measurements system that enables the Foundation and its grantees to reflect on practice and course-correct as…

  1. Supporting Public Access to Research Results

    ERIC Educational Resources Information Center

    Lapinski, P. Scott; Osterbur, David; Parker, Joshua; McCray, Alexa T.

    2014-01-01

    We posed the question of what services an academic library can best provide to support the NIH Public Access Policy. We approached the answer to this question through education, collaboration, and tool-building. As a result, over the last four years we have engaged over 1,500 participants in discussions of public access to research results, forged…

  2. Zero Result Searches. . . How to Minimize Them.

    ERIC Educational Resources Information Center

    Atkinson, Steve

    1986-01-01

    Based on manual observation of 187 zero result online searches at a university library, this article addresses three types of problems that can produce such search results: multiple database searching, topic negotiation, and database availability. A summary of conceptual and practical recommendations for searchers are provided. (6 references) (EJS)

  3. Recent Results from the Belle Experiment

    NASA Astrophysics Data System (ADS)

    King, Z.; Schwartz, A. J.; Belle Collaboration

    2016-11-01

    We review recent results from the Belle experiment, which took data at the KEKB asymmetric-energy e+e- collider in Japan. The experiment recorded about 1000 fb-1 of data running mainly at the ϒ(4S) and ϒ(5S) resonances. The results presented here are obtained from the full data set.

  4. Croatian survey on critical results reporting

    PubMed Central

    Trifunović, Jasenka; Pavosevic, Tihana; Nikolac, Nora

    2015-01-01

    Introduction Poor harmonization of critical results management is present in various laboratories and countries, including Croatia. We aimed to investigate procedures used in critical results reporting in Croatian medical biochemistry laboratories (MBLs). Materials and methods An anonymous questionnaire, consisting of 24 questions/statements, related to critical results reporting procedures, was send to managers of MBLs in Croatia. Participants were asked to declare the frequency of performing procedures and degree of agreement with statements about critical values reporting using a Likert scale. Total score and mean scores for corresponding separate statements divided according to health care setting were calculated and compared. Results Responses from 111 Croatian laboratories (48%) were analyzed. General practice laboratories (GPLs) more often re-analyzed the sample before reporting the critical result in comparison with the hospital laboratories (HLs) (score: 4.86 (4.75-4.96) vs. 4.49 (4.25-4.72); P = 0.001) and more often reported the critical value exclusively to the responsible physician compared to HLs (4.46 (4.29-4.64) vs. 3.76 (3.48-4.03), P < 0.001). High total score (4.69 (4.56-4.82)) was observed for selection of the critical results list issued by the Croatian Chamber of Medical Biochemistry (CCMB) indicating a high harmonization level for this aspect of critical result management. Low total scores were observed for the statements regarding data recording and documentation of critical result notification. Conclusions Differences in practices about critical results reporting between HLs and GPLs were found. The homogeneity of least favorable responses detected for data recording and documentation of critical results notification reflects the lack of specific national recommendations. PMID:26110031

  5. Patient Preferences for Test Result Notification.

    PubMed

    Shultz, Samuel K; Wu, Robert; Matelski, John J; Lu, Xin; Cram, Peter

    2015-11-01

    Patients are increasingly being given access to their test results, but little is known about how preferences vary with the test under consideration or the results of the test (normal or abnormal). This study was conducted to examine preferences for test result communication. We surveyed adults to explore their preferences for test result notification for three common diagnostic tests of varying "emotional impact" (dual-energy x-ray absorptiometry [DXA], genital herpes, and cancer biopsy) when test results were 1) normal and 2) abnormal. We conducted our survey between June and August 2012 on the campus of an academic medical center. For each scenario, subjects were asked to rank seven methods that might be used to communicate test results (letter, unsecured email, secured email, text message, telephone call, secure Web portal, office visit) in order of acceptability. The main measures were the percentage of respondents who ranked a particular test result notification method favorably and the percentage who ranked it as unacceptable. When test results were normal, subjects' notification preferences were generally similar for DXA, herpes and cancer biopsy, with telephone and letter ranked most favorably for all three tests. Conversely, text message and unsecured email were viewed as unacceptable notification methods for normal results by 45.0-55.0 % of subjects across all three tests. When test results were abnormal, office visits became more popular. A higher proportion of subjects ranked office visits as their most preferred notification method for our test with high "emotional impact" (cancer biopsy) (38.4 %) as compared to DXA (28.2 %) and herpes (27.9 %) (P = 0.02). For most test scenarios, younger subjects appeared to rank electronic communication modalities (secure email or Web portal) higher than older subjects, though this difference did not reach statistical significance (P = 0.29). Preferences for test result notification can differ

  6. Scheduling periodic jobs using imprecise results

    NASA Technical Reports Server (NTRS)

    Chung, Jen-Yao; Liu, Jane W. S.; Lin, Kwei-Jay

    1987-01-01

    One approach to avoid timing faults in hard, real-time systems is to make available intermediate, imprecise results produced by real-time processes. When a result of the desired quality cannot be produced in time, an imprecise result of acceptable quality produced before the deadline can be used. The problem of scheduling periodic jobs to meet deadlines on a system that provides the necessary programming language primitives and run-time support for processes to return imprecise results is discussed. Since the scheduler may choose to terminate a task before it is completed, causing it to produce an acceptable but imprecise result, the amount of processor time assigned to any task in a valid schedule can be less than the amount of time required to complete the task. A meaningful formulation of the scheduling problem must take into account the overall quality of the results. Depending on the different types of undesirable effects caused by errors, jobs are classified as type N or type C. For type N jobs, the effects of errors in results produced in different periods are not cumulative. A reasonable performance measure is the average error over all jobs. Three heuristic algorithms that lead to feasible schedules with small average errors are described. For type C jobs, the undesirable effects of errors produced in different periods are cumulative. Schedulability criteria of type C jobs are discussed.

  7. Croatian survey on critical results reporting.

    PubMed

    Kopcinovic, Lara Milevoj; Trifunović, Jasenka; Pavosevic, Tihana; Nikolac, Nora

    2015-01-01

    Poor harmonization of critical results management is present in various laboratories and countries, including Croatia. We aimed to investigate procedures used in critical results reporting in Croatian medical biochemistry laboratories (MBLs). An anonymous questionnaire, consisting of 24 questions/statements, related to critical results reporting procedures, was send to managers of MBLs in Croatia. Participants were asked to declare the frequency of performing procedures and degree of agreement with statements about critical values reporting using a Likert scale. Total score and mean scores for corresponding separate statements divided according to health care setting were calculated and compared. Responses from 111 Croatian laboratories (48%) were analyzed. General practice laboratories (GPLs) more often re-analyzed the sample before reporting the critical result in comparison with the hospital laboratories (HLs) (score: 4.86 (4.75-4.96) vs. 4.49 (4.25-4.72); P=0.001) and more often reported the critical value exclusively to the responsible physician compared to HLs (4.46 (4.29-4.64) vs. 3.76 (3.48-4.03), P<0.001). High total score (4.69 (4.56-4.82)) was observed for selection of the critical results list issued by the Croatian Chamber of Medical Biochemistry (CCMB) indicating a high harmonization level for this aspect of critical result management. Low total scores were observed for the statements regarding data recording and documentation of critical result notification. Differences in practices about critical results reporting between HLs and GPLs were found. The homogeneity of least favorable responses detected for data recording and documentation of critical results notification reflects the lack of specific national recommendations.

  8. Unfavourable results with distraction in craniofacial skeleton

    PubMed Central

    Agarwal, Rajiv

    2013-01-01

    Distraction osteogenesis has revolutionised the management of craniofacial abnormalities. The technique however requires precise planning, patient selection, execution and follow-up to achieve consistent and positive results and to avoid unfavourable results. The unfavourable results with craniofacial distraction stem from many factors ranging from improper patient selection, planning and use of inappropriate distraction device and vector. The present study analyses the current standards and techniques of distraction and details in depth the various errors and complications that may occur due to this technique. The commonly observed complications of distraction have been detailed along with measures and suggestions to avoid them in clinical practice. PMID:24501455

  9. Review of Physics Results from the Tevatron

    SciTech Connect

    Bandurin, D.; Bernardi, G.; Gerber, C.; Junk, T.; Juste, A.; Kotwal, A.; Lewis, J.; Mesropian, C.; Schellman, H.; Sekaric, J.; Toback, D.; Van Kooten, R.; Vellidis, C.; Zivkovic, L.

    2015-02-27

    We present a comprehensive review of the physics results obtained by the CDF and D0 collaborations up to summer 2014, with emphasis on those achieved in the Run II of the Tevatron collider which delivered a total integrated luminosity of ~10 fb$^{-1}$ at $\\sqrt{s} = 1.96~{\\rm TeV}$. The results are presented in six main physics topics: QCD, Heavy Flavor, Electroweak, Top quark, Higgs boson and searches for New Particles and Interactions. The characteristics of the accelerator, detectors, and the techniques used to achieve these results are also briefly summarized.

  10. Livermore Big Trees Park: 1998 Results

    SciTech Connect

    Mac Queen, D; Gallegos, G; Surano, K

    2002-04-18

    This report is an in-depth study of results from environmental sampling conducted in 1998 by the Lawrence Livermore National Laboratory (LLNL) at Big Trees Park in the city of Livermore. The purpose of the sampling was to determine the extent and origin of plutonium found in soil at concentrations above fallout-background levels in the park. This report describes the sampling that was conducted, the chemical and radio-chemical analyses of the samples, the quality control assessments and statistical analyses of the analytical results, and LLNL's interpretations of the results. It includes a number of data analyses not presented in LLNL's previous reports on Big Trees Park.

  11. Comparative results of 327 chemical carcinogenicity studies.

    PubMed Central

    Haseman, J K; Huff, J E; Zeiger, E; McConnell, E E

    1987-01-01

    The National Cancer Institute (NCI) and the National Toxicology Program (NTP) have carried out a number of laboratory animal carcinogenicity studies and presented the results of these experiments in a series of Technical Reports. This paper tabulates the results of the 327 NCI/NTP studies carried out to date on 308 distinct chemicals, and discusses certain issues relevant to the evaluation of carcinogenicity in these experiments. This compilation of results from NCI/NTP carcinogenicity experiments provides a large database that can be used to study structure-activity correlations, interspecies concordance, and associations between laboratory animal carcinogenicity and other toxicological effects. PMID:3691430

  12. Semantic Clustering of Search Engine Results

    PubMed Central

    Soliman, Sara Saad; El-Sayed, Maged F.; Hassan, Yasser F.

    2015-01-01

    This paper presents a novel approach for search engine results clustering that relies on the semantics of the retrieved documents rather than the terms in those documents. The proposed approach takes into consideration both lexical and semantics similarities among documents and applies activation spreading technique in order to generate semantically meaningful clusters. This approach allows documents that are semantically similar to be clustered together rather than clustering documents based on similar terms. A prototype is implemented and several experiments are conducted to test the prospered solution. The result of the experiment confirmed that the proposed solution achieves remarkable results in terms of precision. PMID:26933673

  13. New results on the tau lepton

    SciTech Connect

    Gan, K.K.

    1987-11-01

    This is a review of new results on the tau lepton. The results include precise measurements of the lifetime, measurements of the decay tau/sup -/ ..-->.. ..pi../sup -/2..pi../sup 0/nu/sub tau/ with much improved precision, and limits on decay modes containing eta mesons, including the second-class-current decay tau/sup -/ ..-->.. ..pi../sup -/eta nu/sub tau/. The implications of these new results on the discrepancy in the one-charged-particle decay modes are discussed. 52 refs., 6 figs., 2 tabs.

  14. Experimental rotordynamic coefficient results for honeycomb seals

    NASA Technical Reports Server (NTRS)

    Elrod, David A.; Childs, Dara W.

    1988-01-01

    Test results (leakage and rotordynamic coefficients) are presented for seven honeycomb-stator smooth-rotor seals. Tests were carried out with air at rotor speeds up to 16,000 cpm and supply pressures up to 8.2 bars. Test results for the seven seals are compared, and the most stable configuration is identified based on the whirl frequency ratio. Results from tests of a smooth-rotor/smooth-stator seal, a teeth-on-stator labyrinth seal, and the most stable honeycomb seal are compared.

  15. Evaluation metric of an image understanding result

    NASA Astrophysics Data System (ADS)

    Hemery, Baptiste; Laurent, Helene; Emile, Bruno; Rosenberger, Christophe

    2015-01-01

    Image processing algorithms include methods that process images from their acquisition to the extraction of useful information for a given application. Among interpretation algorithms, some are designed to detect, localize, and identify one or several objects in an image. The problem addressed is the evaluation of the interpretation results of an image or a video given an associated ground truth. Challenges are multiple, such as the comparison of algorithms, evaluation of an algorithm during its development, or the definition of its optimal settings. We propose a new metric for evaluating the interpretation result of an image. The advantage of the proposed metric is to evaluate a result by taking into account the quality of the localization, recognition, and detection of objects of interest in the image. Several parameters allow us to change the behavior of this metric for a given application. Its behavior has been tested on a large database and showed interesting results.

  16. [Results of ethmoidectomy in children with mucoviscidosis].

    PubMed

    Clement, P A; Brihaye, P

    1994-01-01

    Eighteen children with cystic fibrosis who underwent in total 30 sinus interventions were examined in a retrospective study. There was 44% of recurrence. A review of the literature shows that sphenoethmoidectomy gives better results than nasal polypectomy.

  17. Highlights of Recent Results with Clas

    SciTech Connect

    Volker Burkert

    2005-04-01

    Recent results on the study of the electromagnetic structure of nucleon resonances, the spin structure of proton and neutrons at small and intermediate photon virtualities, and the search for exotic pentaquark baryons are presented.

  18. EPA Announces 2015 Annual Environmental Enforcement Results

    EPA Pesticide Factsheets

    WASHINGTON - The U.S. Environmental Protection Agency (EPA) today released its annual enforcement and compliance results highlighted by large cases that reduce pollution, level the playing field for responsible companies, and protect public health i

  19. Results from CMS on Higgs boson physics

    NASA Astrophysics Data System (ADS)

    Azzurri, Paolo; CMS Collaboration

    2017-07-01

    A selection of measurements and results of Higgs physics obtained by the CMS experiment are presented, obtained with proton collision data collected in 2015 and 2016 at the center-of-mass energy of 13 TeV.

  20. Results of coronal hole research: An overview

    NASA Technical Reports Server (NTRS)

    Wilson, R. M.

    1976-01-01

    An overview of the last 10 years of coronal hole research, in particular since 1970, is presented. The findings of the early investigations and the more recent results obtained with Skylab/Apollo Telescope Mount instrumentation are discussed.

  1. Recent Radiation Test Results for Power MOSFETs

    NASA Technical Reports Server (NTRS)

    Lauenstein, Jean-Marie; Topper, Alyson D.; Casey, Megan C.; Wilcox, Edward P.; Phan, Anthony M.; Kim, Hak S.; LaBel, Kenneth A.

    2013-01-01

    Single-event effect (SEE) and total ionizing dose (TID) test results are presented for various hardened and commercial power metal-oxide-semiconductor field effect transistors (MOSFETs), including vertical planar, trench, superjunction, and lateral process designs.

  2. CTEPP NC DATA QA/QC RESULTS

    EPA Science Inventory

    This data set contains the method performance results. This includes field blanks, method blanks, duplicate samples, analytical duplicates, matrix spikes, and surrogate recovery standards.

    The Children’s Total Exposure to Persistent Pesticides and Other Persistent Pollutant (...

  3. New Quality Metrics for Web Search Results

    NASA Astrophysics Data System (ADS)

    Metaxas, Panagiotis Takis; Ivanova, Lilia; Mustafaraj, Eni

    Web search results enjoy an increasing importance in our daily lives. But what can be said about their quality, especially when querying a controversial issue? The traditional information retrieval metrics of precision and recall do not provide much insight in the case of web information retrieval. In this paper we examine new ways of evaluating quality in search results: coverage and independence. We give examples on how these new metrics can be calculated and what their values reveal regarding the two major search engines, Google and Yahoo. We have found evidence of low coverage for commercial and medical controversial queries, and high coverage for a political query that is highly contested. Given the fact that search engines are unwilling to tune their search results manually, except in a few cases that have become the source of bad publicity, low coverage and independence reveal the efforts of dedicated groups to manipulate the search results.

  4. Skin Cancer: NIH Research to Results

    MedlinePlus

    ... of this page please turn Javascript on. Feature: Skin Cancer NIH Research to Results Past Issues / Summer 2013 ... making a person immune to his or her skin cancer cells. Another method is to train a person's ...

  5. Approximate Controllability Results for Linear Viscoelastic Flows

    NASA Astrophysics Data System (ADS)

    Chowdhury, Shirshendu; Mitra, Debanjana; Ramaswamy, Mythily; Renardy, Michael

    2017-09-01

    We consider linear viscoelastic flow of a multimode Maxwell or Jeffreys fluid in a bounded domain with smooth boundary, with a distributed control in the momentum equation. We establish results on approximate and exact controllability.

  6. NICMOS SM-2 SMOV Alignment Results

    NASA Astrophysics Data System (ADS)

    Lupie, O.; Lallo, M.; Cox, C.; Bergeron, E.

    1997-08-01

    This technical memo documents the alignment calibration, spreadsheet model modifications and the update of aperture tables using results from in-flight NICM alignment tests performed during the Second Servicing Mission Orbital Verification Phase.

  7. Scaling results for the liquid sheet radiator

    NASA Technical Reports Server (NTRS)

    Chubb, Donald L.; Calfo, Frederick D.

    1989-01-01

    Surface tension forces at the edges of a thin liquid (approx 100 micrometers) sheet flow result in a triangularly shaped sheet. Such a geometry is ideal for an external flow radiator. The experimental investigation of such sheet flows was extended to large sheets (width = 23.5 cm, length = 3.5 m). Experimental L/W results are greater than the calculated results. However, more experimental results are necessary for a complete comparison. The calculated emissivity of a sheet of Dow-Corning 705 silicone oil, which is low temperature (300-400 K) candidate for a liquid sheet radiator (LSR), is greater than 0.8 for sheet thicknesses greater than 100 micrometers.

  8. Scaling results for the liquid sheet radiator

    NASA Astrophysics Data System (ADS)

    Chubb, Donald L.; Calfo, Frederick D.

    Surface tension forces at the edges of a thin liquid (approx 100 micrometers) sheet flow result in a triangularly shaped sheet. Such a geometry is ideal for an external flow radiator. The experimental investigation of such sheet flows was extended to large sheets (width = 23.5 cm, length = 3.5 m). Experimental L/W results are greater than the calculated results. However, more experimental results are necessary for a complete comparison. The calculated emissivity of a sheet of Dow-Corning 705 silicone oil, which is low temperature (300-400 K) candidate for a liquid sheet radiator (LSR), is greater than 0.8 for sheet thicknesses greater than 100 micrometers.

  9. Three electroweak results from lattice QCD

    SciTech Connect

    Kronfeld, A.S., FERMI

    1998-08-01

    Quantum chromodynamics is needed to understand quarks and, hence, to determine the quarks` Yukawa couplings from experimental measurements. As a short illustration, the results of three lattice calculations are given.

  10. 7 CFR 1205.29 - Reporting results.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Procedures for Conduct of Sign-up Period Procedures § 1205.29 Reporting results. (a) Each county FSA office... that requested a continuance referendum, through the sign-up period, to the Deputy...

  11. 7 CFR 1205.29 - Reporting results.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Procedures for Conduct of Sign-up Period Procedures § 1205.29 Reporting results. (a) Each county FSA office... that requested a continuance referendum, through the sign-up period, to the Deputy...

  12. 7 CFR 1205.29 - Reporting results.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Procedures for Conduct of Sign-up Period Procedures § 1205.29 Reporting results. (a) Each county FSA office... that requested a continuance referendum, through the sign-up period, to the Deputy...

  13. 7 CFR 1205.29 - Reporting results.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Procedures for Conduct of Sign-up Period Procedures § 1205.29 Reporting results. (a) Each county FSA office... that requested a continuance referendum, through the sign-up period, to the Deputy...

  14. Manual and Automatic Lineament Mapping: Comparing Results

    NASA Astrophysics Data System (ADS)

    Vaz, D. A.; di Achille, G.; Barata, M. T.; Alves, E. I.

    2008-03-01

    A method for automatic lineament extraction using topographic data is applied on the Thaumasia plateau. A comparison is made between the results that are obtained from the automatic mapping approach and from a traditional tectonic lineament mapping.

  15. Melanoma Biopsy Results Can Differ, Worrying Patients

    MedlinePlus

    ... page: https://medlineplus.gov/news/fullstory_166955.html Melanoma Biopsy Results Can Differ, Worrying Patients Doctor discovers ... her dermatologist said her skin biopsy indicated possible melanoma, she knew just what to do -- get a ...

  16. Heavy quark results at D0

    SciTech Connect

    Fein, D.K.; D0 Collaboration

    1997-01-01

    Recent results in heavy quark physics from the D0 experiment at the Fermilab Tevatron Collider are reported. Topics included are top quark production and mass determination, bottom production and correlations, and charmonium production. 20 refs., 10 figs., 2 tabs.

  17. Recent QCD results from the Tevatron

    SciTech Connect

    Pickarz, Henryk; CDF and DO collaboration

    1997-02-01

    Recent QCD results from the CDF and D0 detectors at the Tevatron proton-antiproton collider are presented. An outlook for future QCD tests at the Tevatron collider is also breifly discussed. 27 refs., 11 figs.

  18. Notification: Evaluation of EPA Enforcement Results

    EPA Pesticide Factsheets

    June 22, 2012. The purpose of this memorandum is to notify you that the Office of Inspector General (OIG) plans to begin an evaluation of EPA’s enforcement results in response to a request from Senator Charles Grassley.

  19. Cone Penetrometer N Factor Determination Testing Results

    SciTech Connect

    Follett, Jordan R.

    2014-03-05

    This document contains the results of testing activities to determine the empirical 'N Factor' for the cone penetrometer in kaolin clay simulant. The N Factor is used to releate resistance measurements taken with the cone penetrometer to shear strength.

  20. Norcal Prototype LNG Truck Fleet: Final Results

    SciTech Connect

    Not Available

    2004-07-01

    U.S. DOE and National Renewable Energy Laboratory evaluated Norcal Waste Systems liquefied natural gas (LNG) waste transfer trucks. Trucks had prototype Cummins Westport ISXG engines. Report gives final evaluation results.

  1. CTEPP NC DATA QA/QC RESULTS

    EPA Science Inventory

    This data set contains the method performance results. This includes field blanks, method blanks, duplicate samples, analytical duplicates, matrix spikes, and surrogate recovery standards.

    The Children’s Total Exposure to Persistent Pesticides and Other Persistent Pollutant (...

  2. Neutron scattering: Technological achievements and illustrative results

    SciTech Connect

    Chiba, S. ); Takahashi, A. ); Klein, H. ); Smith, A. )

    1991-01-01

    Contemporary neutron scattering endeavors (energies {le} = 25 MeV), using monoenergetic sources and the time-of-flight technique, are reviewed. Facilities and techniques are described, with attention to the optimization of measurement systems. Discrete scattering results are illustrated in fundamental and applied contexts. Techniques for and results from continuum neutron emission studies are discussed, with the implications on physical models and on neutron applications in energy systems. 45 refs., 14 figs.

  3. Abdominal apoplexy resulting in small bowel obstruction

    PubMed Central

    Le, Don; Guileyardo, Joseph; Casanova, Mark

    2016-01-01

    Abdominal apoplexy is a rare hemorrhagic condition involving the small arteries or veins within the abdominal cavity. A high degree of clinical suspicion, followed by appropriate diagnostic workup and therapeutic intervention, is critical, as nonoperative mortality approaches 100%. Contrary to most previously reported cases, which were associated with hemoperitoneum, we present a patient in which gastroduodenal artery dissection resulted in an organized retroperitoneal hematoma with local compression of the duodenum and subsequent bowel obstruction, resulting in vomiting, aspiration, and death. PMID:27695177

  4. Recent results from COMPASS muon scattering measurements

    NASA Astrophysics Data System (ADS)

    Capozza, Luigi; Compass Collaboration

    2012-10-01

    A sample of recent results in muon scattering measurements from the COMPASS experiment at CERN will be reviewed. These include high energy processes with longitudinally polarised proton and deuteron targets. High energy polarised measurements provide important constraints for studying the nucleon spin structure and thus permit to test the applicability of the theoretical framework of factorisation theorems and perturbative QCD. Specifically, latest results on longitudinal quark polarisation, quark helicity densities and gluon polarisation will be reviewed.

  5. Recent results from COMPASS muon scattering measurements

    SciTech Connect

    Capozza, Luigi [Irfu Collaboration: COMPASS Collaboration

    2012-10-23

    A sample of recent results in muon scattering measurements from the COMPASS experiment at CERN will be reviewed. These include high energy processes with longitudinally polarised proton and deuteron targets. High energy polarised measurements provide important constraints for studying the nucleon spin structure and thus permit to test the applicability of the theoretical framework of factorisation theorems and perturbative QCD. Specifically, latest results on longitudinal quark polarisation, quark helicity densities and gluon polarisation will be reviewed.

  6. Ulthera: initial and six month results.

    PubMed

    Brobst, Robert W; Ferguson, Maria; Perkins, Stephen W

    2012-05-01

    The Ulthera system is a facial application of intense focused ultrasound developed for improving noninvasive rejuvenation results. This article describes the Ulthera device, its mechanism of action, the indications and limitations of the device, and the details of treatment. We also review the literature and our personal results, discuss future trends, and conclude with advice for the early user. Copyright © 2012 Elsevier Inc. All rights reserved.

  7. Random walk through recent CDF QCD results

    SciTech Connect

    C. Mesropian

    2003-04-09

    We present recent results on jet fragmentation, jet evolution in jet and minimum bias events, and underlying event studies. The results presented in this talk address significant questions relevant to QCD and, in particular, to jet studies. One topic discussed is jet fragmentation and the possibility of describing it down to very small momentum scales in terms of pQCD. Another topic is the studies of underlying event energy originating from fragmentation of partons not associated with the hard scattering.

  8. Results on CP violation from CDF

    SciTech Connect

    S. Giagu

    2003-12-11

    The CDF experiment at the Tevatron collider is collecting a large sample of fully hadronic decays of Bottom and Charm mesons. First CP Violation measurements have been performed using the initial data, achieving results which clearly state the CDF ability in extracting significant CKM information from p{bar p} collisions. The first results on direct CP asymmetries on Charm and Bottom decays and future plans from the CDF experiment are discussed in this paper.

  9. Pulmonary hemorrhage resulting from bungee jumping.

    PubMed

    Manos, Daria; Hamer, Okka; Müller, Nestor L

    2007-11-01

    Pulmonary hemorrhage is a relatively common complication of blunt chest trauma. Occasionally, it may result from pulmonary barotrauma after scuba diving or from sports activities not associated with barotrauma such as long breath-hold diving. We report a case of symmetric diffuse upper lobe hemorrhage resulting from a bungee jump in a previously healthy man. Bungee jumping is an increasingly popular sport with relatively few reported injuries. To our knowledge pulmonary hemorrhage in this setting has not yet been described.

  10. NASA JSC neural network survey results

    NASA Technical Reports Server (NTRS)

    Greenwood, Dan

    1987-01-01

    A survey of Artificial Neural Systems in support of NASA's (Johnson Space Center) Automatic Perception for Mission Planning and Flight Control Research Program was conducted. Several of the world's leading researchers contributed papers containing their most recent results on artificial neural systems. These papers were broken into categories and descriptive accounts of the results make up a large part of this report. Also included is material on sources of information on artificial neural systems such as books, technical reports, software tools, etc.

  11. Pancreatic carcinoma: results with fast neutron therapy

    SciTech Connect

    Kaul, R.; Cohen, L.; Hendrickson, F.; Awschalom, M.; Hrejsa, A.F.; Rosenberg, I.

    1981-02-01

    Results of therapy in 31 of 50 patients who were treated for advanced pancreatic carcinoma at Fermi National Accelerator Laboratory are presented here. To date, six patients are alive and four are free of disease. Since the main reason for failure was lack of control of primary tumor, the tumor dose has been increased by 15%. Based on our results, a nationwide study has been launched to assess the effectiveness of neutrons vs photons in the treatment of locally advanced pancreatic carcinoma.

  12. A generalized Dolinar receiver with inconclusive results

    SciTech Connect

    Nakahira, K.; Usuda, T. S.

    2014-12-04

    We investigate the implementation of a measurement for binary optical coherent states that minimizes the error probability with a fixed rate of an inconclusive result. We find that the optimal measurement for binary optical coherent states with any probability of an inconclusive result can be implemented using only a beam splitter, a local coherent light source, a photon detector, and a feedback circuit, even though the measurement is generally not projective.

  13. Abdominal apoplexy resulting in small bowel obstruction.

    PubMed

    Smith, Avery; Le, Don; Guileyardo, Joseph; Casanova, Mark

    2016-10-01

    Abdominal apoplexy is a rare hemorrhagic condition involving the small arteries or veins within the abdominal cavity. A high degree of clinical suspicion, followed by appropriate diagnostic workup and therapeutic intervention, is critical, as nonoperative mortality approaches 100%. Contrary to most previously reported cases, which were associated with hemoperitoneum, we present a patient in which gastroduodenal artery dissection resulted in an organized retroperitoneal hematoma with local compression of the duodenum and subsequent bowel obstruction, resulting in vomiting, aspiration, and death.

  14. Quality circles: Organizational adaptations, improvements and results

    NASA Technical Reports Server (NTRS)

    Tortorich, R.

    1985-01-01

    The effective application in industry and government of quality circles work was demonstrated. The results achieved in quality and productivity improvements and cost savings are impressive. The circle process should be institutionalized within industry and government. The stages of circle program growth, innovations that help achieve circle process institutionalization, and the result achieved at Martin Marietta's Michoud Division and within the National Aeronautics and Space Administration (NASA) are addressed.

  15. Log(s) physics results from CDF

    SciTech Connect

    Not Available

    1989-11-08

    The Collider Detector at Fermilab (CDF) is a large, azimuthally symmetric detector designed to study {bar p}p interactions at the Fermilab Tevatron Collider. Results are presented from data taken with a minimum bias trigger at {radical}s = 630 and 1800 GeV during the 1987 run. The topics include the current analysis of dn/d{eta} and some very preliminary results on short range pseudorapidity correlations and Bose-Einstein correlations. 7 refs., 5 figs., 2 tabs.

  16. Test result management in global health settings.

    PubMed

    Palazuelos, Daniel; Payne, Jonathan D; Dalal, Anuj K

    2012-09-01

    Across the globe, the ways in which patients' test results are managed are as varied as the many different types of healthcare systems that manage these data. The outcomes, however, are often not too dissimilar: too many clinically significant test results fall through the cracks. The consequences of not following up test results in a timely manner are serious and often devastating to patients: diagnoses are delayed, treatments are not initiated or altered in time, and diseases progress. In resource-poor settings, test results too commonly get filed away within the paper chart in ways that isolate them and prevent passage to future providers caring for a patient. To make matters worse, the onus to act upon these test results often rests on patients who need to return to the clinic within a specified timeframe in order to obtain their results but who may not have the means or are too ill to do so. Even in more developed healthcare settings that use electronic records, clinical data residing in the electronic medical record (EMR) are often stubbornly "static"-key pieces of clinical information are frequently not recognized, retrieved, or shared easily. In this way, EMRs are not unlike paper record systems, and therefore, EMRs alone will not solve this problem. To illustrate this problem, consider the case of a patient newly diagnosed with HIV in 3 different healthcare delivery settings.

  17. Implications of the Qweak Commissioning Result

    NASA Astrophysics Data System (ADS)

    Smith, Greg; Qweak Collaboration

    2014-09-01

    The commissioning results of the Qweak experiment at Jefferson Lab, which constituted approximately 4% of the total results obtained in that experiment, were recently published. After a brief review of the experiment, new, unpublished results derived from that publication will be presented. The sensitivity of the fit used to extract the proton's weak charge to the choice of electromagnetic form factors, to the proton radius puzzle, and to the dipole mass used for the Q2 evolution will be examined. The running of sin2 (θw) and the experiment's mass reach will be discussed. The status of the ongoing effort to complete the analysis of the full experiment will also be shown. The commissioning results of the Qweak experiment at Jefferson Lab, which constituted approximately 4% of the total results obtained in that experiment, were recently published. After a brief review of the experiment, new, unpublished results derived from that publication will be presented. The sensitivity of the fit used to extract the proton's weak charge to the choice of electromagnetic form factors, to the proton radius puzzle, and to the dipole mass used for the Q2 evolution will be examined. The running of sin2 (θw) and the experiment's mass reach will be discussed. The status of the ongoing effort to complete the analysis of the full experiment will also be shown. This work was supported by DOE Contract No. DE-AC05-06OR23177, under which Jefferson Science Associates, LLC operates Thomas Jefferson National Accelerator Facility.

  18. Visualizing search results: evaluating an iconic visualization

    NASA Astrophysics Data System (ADS)

    Erfani Joorabchi, M.; Dalvandi, A.; Seifi, H.; Bartram, L.; Shaw, C. D.

    2010-01-01

    Commercial websites offer many items to potential site users. However, most current websites display results of a search in text lists, or as lists sorted on one or two single criteria. Finding the best item in a text list based on multi-priority criteria is an exhausting task, especially for long lists. Visualizing search results and enabling users to perceive the tradeoffs among the results based on multiple priorities may ease this process. To investigate this, two different techniques for displaying and sorting search results are studied in this paper; Text, and XY Iconic Visualization. The goal is to determine which technique for representing search results would be the most efficient one for a website user. We conducted a user study to compare the usability of the two techniques. Collected data is in the form of participants' task responses, a satisfaction questionnaire, qualitative observations, and participants' comments. According to the results, iconic visualization is better for overview (it gives a good overview in a short amount of time) and search with more than two criteria, while text-based performs better for displaying details.

  19. MCNP analyses of criticality calculation results

    SciTech Connect

    Forster, R.A.; Booth, T.E.

    1995-05-01

    Careful assessment of the results of a calculation by the code itself can reduce mistakes in the problem setup and execution. MCNP has over four hundred error messages that inform the user of FATAL or WARNING errors that have been discovered during the processing of just the input file. The latest version, MCNP4A, now performs a self assessment of the calculated results to aid the user in determining the quality of the Monte Carlo results. MCNP4A, which was released to RSIC in October 1993, contains new analyses of the MCNP Monte Carlo calculation that provide simple user WARNINGs for both criticality and fixed source calculations. The goal of the new analyses is to provide the MCNP criticality practitioner with enough information in the output to assess the validity of the k{sub eff} calculation and any associated tallies. The results of these checks are presented in the k{sub eff} results summary page, several k{sub eff} tables and graphs, and tally tables and graphs. Plots of k{sub eff} at the workstation are also available as the problem is running or in a postprocessing mode to assess problem performance and results.

  20. Critical international normalized ratio results after hours

    PubMed Central

    Korn, Darlene; Sean McMurtry, M.; George-Phillips, Kirsten; Bungard, Tammy J.

    2017-01-01

    Abstract Objective To determine whether the timing of notification of critical international normalized ratio (INR) results (during or after clinic hours) altered the clinician’s ability to affect same-day patient care. Design Retrospective chart review. Setting The Anticoagulation Management Service at the University of Alberta Hospital in Edmonton. Participants A total of 276 patients with critical INR results (> 5.0) separated by at least 30 days were identified to have 200 critical INR results reported during clinic hours and 200 reported after hours. Main outcome measures Differences in the proportion of patients with critical INR results having same-day care altered (by changing warfarin dose, administering vitamin K, or referring for assessment) between those with results reported during clinic hours compared with those with results reported after clinic hours. Differences by highly critical INR results (> 9.0 vs ≤ 9.0) and whether patients experienced thromboembolism or bleeding within 30 days were also assessed. Results Same-day patient care was affected for 174 out of 200 (87.0%) critical INR results reported during clinic hours compared with 101 out of 200 (50.5%) reported after clinic hours (P < .001). The most common reason for not being able to intervene was that warfarin had already been taken. Warfarin dose alteration was the most frequent change (97.1% during clinic hours and 96.0% after hours). When patients with INRs greater than 9.0 were assessed separately, the ability to affect care increased for INRs reported both during and after clinic hours (92.9% and 63.6%, respectively), largely attributable to oral vitamin K use. Overall, thromboembolic and major bleeding event rates were low and were similar in both groups. Conclusion Same-day care was less likely to be affected by critical INR results communicated after hours, most commonly because the patient had already taken their daily warfarin dose. However, after-hours care was still

  1. Scheduling periodic jobs that allow imprecise results

    NASA Technical Reports Server (NTRS)

    Chung, Jen-Yao; Liu, Jane W. S.; Lin, Kwei-Jay

    1990-01-01

    The problem of scheduling periodic jobs in hard real-time systems that support imprecise computations is discussed. Two workload models of imprecise computations are presented. These models differ from traditional models in that a task may be terminated any time after it has produced an acceptable result. Each task is logically decomposed into a mandatory part followed by an optional part. In a feasible schedule, the mandatory part of every task is completed before the deadline of the task. The optional part refines the result produced by the mandatory part to reduce the error in the result. Applications are classified as type N and type C, according to undesirable effects of errors. The two workload models characterize the two types of applications. The optional parts of the tasks in an N job need not ever be completed. The resulting quality of each type-N job is measured in terms of the average error in the results over several consecutive periods. A class of preemptive, priority-driven algorithms that leads to feasible schedules with small average error is described and evaluated.

  2. Predictive aging results in radiation environments

    NASA Astrophysics Data System (ADS)

    Gillen, Kenneth T.; Clough, Roger L.

    1993-06-01

    We have previously derived a time-temperature-dose rate superposition methodology, which, when applicable, can be used to predict polymer degradation versus dose rate, temperature and exposure time. This methodology results in predictive capabilities at the low dose rates and long time periods appropriate, for instance, to ambient nuclear power plant environments. The methodology was successfully applied to several polymeric cable materials and then verified for two of the materials by comparisons of the model predictions with 12 year, low-dose-rate aging data on these materials from a nuclear environment. In this paper, we provide a more detailed discussion of the methodology and apply it to data obtained on a number of additional nuclear power plant cable insulation (a hypalon, a silicone rubber and two ethylene-tetrafluoroethylenes) and jacket (a hypalon) materials. We then show that the predicted, low-dose-rate results for our materials are in excellent agreement with long-term (7-9 year) low-dose-rate results recently obtained for the same material types actually aged under bnuclear power plant conditions. Based on a combination of the modelling and long-term results, we find indications of reasonably similar degradation responses among several different commercial formulations for each of the following "generic" materials: hypalon, ethylene-tetrafluoroethylene, silicone rubber and PVC. If such "generic" behavior can be further substantiated through modelling and long-term results on additional formulations, predictions of cable life for other commercial materials of the same generic types would be greatly facilitated.

  3. Quasi-normal frequencies: key analytic results

    NASA Astrophysics Data System (ADS)

    Boonserm, Petarpa; Visser, Matt

    2011-03-01

    The study of exact quasi-normal modes [QNMs], and their associated quasi-normal frequencies [QNFs], has had a long and convoluted history — replete with many rediscoveries of previously known results. In this article we shall collect and survey a number of known analytic results, and develop several new analytic results — specifically we shall provide several new QNF results and estimates, in a form amenable for comparison with the extant literature. Apart from their intrinsic interest, these exact and approximate results serve as a backdrop and a consistency check on ongoing efforts to find general model-independent estimates for QNFs, and general model-independent bounds on transmission probabilities. Our calculations also provide yet another physics application of the Lambert W function. These ideas have relevance to fields as diverse as black hole physics, (where they are related to the damped oscillations of astrophysical black holes, to greybody factors for the Hawking radiation, and to more speculative state-counting models for the Bekenstein entropy), to quantum field theory (where they are related to Casimir energies in unbounded systems), through to condensed matter physics, (where one may literally be interested in an electron tunnelling through a physical barrier).

  4. Scheduling periodic jobs that allow imprecise results

    NASA Technical Reports Server (NTRS)

    Chung, Jen-Yao; Liu, Jane W. S.; Lin, Kwei-Jay

    1990-01-01

    The problem of scheduling periodic jobs in hard real-time systems that support imprecise computations is discussed. Two workload models of imprecise computations are presented. These models differ from traditional models in that a task may be terminated any time after it has produced an acceptable result. Each task is logically decomposed into a mandatory part followed by an optional part. In a feasible schedule, the mandatory part of every task is completed before the deadline of the task. The optional part refines the result produced by the mandatory part to reduce the error in the result. Applications are classified as type N and type C, according to undesirable effects of errors. The two workload models characterize the two types of applications. The optional parts of the tasks in an N job need not ever be completed. The resulting quality of each type-N job is measured in terms of the average error in the results over several consecutive periods. A class of preemptive, priority-driven algorithms that leads to feasible schedules with small average error is described and evaluated.

  5. Results from the Double Chooz experiment

    NASA Astrophysics Data System (ADS)

    Kaneda, Michiru

    2016-11-01

    Recent results from the Double Chooz experiment on the neutrino mixing angle θ13 are presented. Two detectors are located at distances of 400m and 1050m from the reactor cores of the Chooz nuclear power plant, to measure the original neutrino flux from the reactor cores and the disappearance of neutrinos, respectively. The Far Detector has taken data since 2011 while the Near Detector started the data taking in 2014. The latest far detector only result with gadolinium capture events is sin2 2θ13=0.090+0.032.-0.029. Studies using hydrogen capture events also have been improved and the combined result of gadolinium and hydrogen capture events is obtained as sin2 2θ13 = 0.088 ± 0.033.

  6. Nebraska wind resource assessment first year results

    SciTech Connect

    Hurley, P.J.F.; Vilhauer, R.; Stooksbury, D.

    1996-12-31

    This paper presents the preliminary results from a wind resource assessment program in Nebraska sponsored by the Nebraska Power Association. During the first year the measured annual wind speed at 40 meters ranged from 6.5 - 7.5 m/s (14.6 - 16.8 mph) at eight stations across the state. The site selection process is discussed as well as an overview of the site characteristics at the monitoring locations. Results from the first year monitoring period including data recovery rate, directionality, average wind speeds, wind shear, and turbulence intensity are presented. Results from the eight sites are qualitatively compared with other midwest and west coast locations. 5 figs., 2 tabs.

  7. Plasma Interaction Experiment (PIX) flight results

    NASA Technical Reports Server (NTRS)

    Grier, N. T.; Stevens, N. J.

    1979-01-01

    An auxiliary payload package called PIX (plasma interaction experiment) was launched on March 5, 1978, on the LANDSAT 3 launch vehicle to study interactions between the space charged-particle environment and surfaces at high applied positive and negative voltages. Three experimental surfaces were used in this package: a plain disk to act as a control, a disk on a Kapton sheet to determine the effect of surrounding insulation on current collection, and a small solar-array segment to evaluate the effect of distributing biased surfaces among an array of insulators. Only half of the results from the 4 hours of PIX operations were recovered. The results did verify effects found in ground simulation testing. The results of this experiment are discussed in detail.

  8. Diffraction at the Tevatron: CDF results

    SciTech Connect

    Goulianos, Konstantin; /Rockefeller U.

    2006-11-01

    The diffractive program of the CDF Collaboration at the Fermilab Tevatron p{bar p} Collider is reviewed with emphasis on recent results from Run II at {radical}s = 1.96 TeV. Updated results on the x{sub B{sub j}} and Q{sup 2} dependence of the diffractive structure function obtained from dijet production, and on the slope parameter of the t-distribution of diffractive events as a function of Q{sup 2} in the range 1 GeV{sup 2} < Q{sup 2} < 10{sup 4} GeV{sup 2}, are presented and compared with theoretical expectations. Results on cross sections for exclusive dijet and diphoton production are also presented and used to calibrate theoretical estimates for exclusive Higgs production at the Large Hadron Collider.

  9. Adaptive structures - Test hardware and experimental results

    NASA Technical Reports Server (NTRS)

    Wada, Ben K.; Fanson, James L.; Chen, Gun-Shing; Kuo, Chin-Po

    1990-01-01

    The facilities and procedures used at JPL to test adaptive structures such as the large deployable reflector (LDR) are described and preliminary results are reported. The applications of adaptive structures in future NASA missions are outlined, and the techniques which are employed to modify damping, stiffness, and isolation characteristics, as well as geometric changes, are listed. The development of adaptive structures is shown to be effective as a result of new actuators and sensors, and examples are listed for categories such as fiber optics, shape-memory materials, piezoelectrics, and electrorheological fluids. Some ground test results are described for laboratory truss structures and truss test beds, which are shown to be efficient and easy to assemble in space. Adaptive structures are shown to be important for precision space structures such as the LDR, and can alleviate ground test requirements.

  10. Results of Labscale Hybrid Rocket Motor investigation

    NASA Technical Reports Server (NTRS)

    Greiner, B.; Frederick, R. A., Jr.

    1992-01-01

    This work was performed to establish a labscale hybrid rocket motor test and evaluation capability at NASA Marshall Space Flight Center. The scope included activation of a Labscale Hybrid Motor, determination of baseline burning rates for PMMA fuel, and replication of pressure oscillations for HTPB fuel. The 0.820-in.-diam port, 10-in.-long fuel grains were burned for two seconds with gaseous oxygen. PMMA fuels were tested at oxygen fluxes from 0.047 lbm/sec sq in. to 0.378 lbm/sec sq in., and the HTPB fuel was evaluated at 0.378 lbm/sec sq in. The results showed that the labscale hybrid motor replicated previously reported PMMA fuel regression rates. The results also replicated low-frequency (less than 100 Hz) pressure oscillations that have been observed for HTPB fuels. These results establish the Labscale Hybrid Motor facility at MSFC.

  11. East Mountain Area 1995 air sampling results

    SciTech Connect

    Deola, R.A.

    1996-09-01

    Ambient air samples were taken at two locations in the East Mountain Area in conjunction with thermal testing at the Lurance Canyon Burn Site (LCBS). The samples were taken to provide measurements of particulate matter with a diameter less than or equal to 10 micrometers (PM{sub 10}) and volatile organic compounds (VOCs). This report summarizes the results of the sampling performed in 1995. The results from small-scale testing performed to determine the potentially produced air pollutants in the thermal tests are included in this report. Analytical results indicate few samples produced measurable concentrations of pollutants believed to be produced by thermal testing. Recommendations for future air sampling in the East Mountain Area are also noted.

  12. Results of Labscale Hybrid Rocket Motor investigation

    NASA Technical Reports Server (NTRS)

    Greiner, B.; Frederick, R. A., Jr.

    1992-01-01

    This work was performed to establish a labscale hybrid rocket motor test and evaluation capability at NASA Marshall Space Flight Center. The scope included activation of a Labscale Hybrid Motor, determination of baseline burning rates for PMMA fuel, and replication of pressure oscillations for HTPB fuel. The 0.820-in.-diam port, 10-in.-long fuel grains were burned for two seconds with gaseous oxygen. PMMA fuels were tested at oxygen fluxes from 0.047 lbm/sec sq in. to 0.378 lbm/sec sq in., and the HTPB fuel was evaluated at 0.378 lbm/sec sq in. The results showed that the labscale hybrid motor replicated previously reported PMMA fuel regression rates. The results also replicated low-frequency (less than 100 Hz) pressure oscillations that have been observed for HTPB fuels. These results establish the Labscale Hybrid Motor facility at MSFC.

  13. Convergence results for elliptic quasivariational inequalities

    NASA Astrophysics Data System (ADS)

    Sofonea, Mircea; Benraouda, Ahlem

    2017-02-01

    In this paper, we state and prove various convergence results for a general class of elliptic quasivariational inequalities with constraints. Thus, we prove the convergence of the solution of a class of penalized problems to the solution of the original inequality, as the penalty parameter converges to zero. We also prove a continuous dependence result of the solution with respect the convex set of constraints. Then, we consider a mathematical model which describes the equilibrium of an elastic rod attached to a nonlinear spring. We derive the variational formulation of the model which is in a form of an elliptic quasivariational inequality for the displacement field. We prove the unique weak solvability of the model, and then we state and prove two convergence results and provide their corresponding mechanical interpretation.

  14. On the reliability of reverse engineering results.

    PubMed

    Amotchkina, Tatiana V; Trubetskov, Michael K; Pervak, Vladimir; Romanov, Boris; Tikhonravov, Alexander V

    2012-08-01

    Determination of actual parameters of manufactured optical coatings (reverse engineering of optical coatings) provides feedback to the design-production chain and thus plays an important role in raising the quality of optical coatings production. In this paper, the reliability of reverse engineering results obtained using different types of experimental data is investigated. Considered experimental data include offline normal incidence transmittance data, offline ellipsometric data, and online transmittance monitoring data recorded during depositions of all coating layers. Experimental data are obtained for special test quarter-wave mirrors with intentional errors in some layers. These mirrors were produced by a well-calibrated magnetron-sputtering process. The intentional errors are several times higher than estimated errors of layer thickness monitoring, and the reliability of their detection is used as a measure of reliability of reverse engineering results. It is demonstrated that the most reliable results are provided by online transmittance data.

  15. CEBAF'S New RF Separator Structure Test Results

    SciTech Connect

    Reza Kazimi; Jock Fugitt; A. Krycuk; Charles Sinclair; Larry Turlington

    1993-05-01

    Prototypes of the rf separator for CEBAF have been made and successfully beam tested. The structure is a new design which has a high transverse shunt impedance together with a small transverse dimension compared to more conventional rf deflecting structures. Five rf separators will be used at CEBAF to allow beam from any one of the five recirculation passes to be delivered to any of the three experimental halls. The authors have already described the basic design of the structure and theoretical calculations. They have also reported some results from rf measurements and beam tests. In this paper they present more beam test results, their final design parameters, and test results of coupling two 1/2 wavelength cavities together.

  16. Monte Carlo results for the hydrogen Hugoniot.

    PubMed

    Bezkrovniy, V; Filinov, V S; Kremp, D; Bonitz, M; Schlanges, M; Kraeft, W D; Levashov, P R; Fortov, V E

    2004-11-01

    We propose a theoretical Hugoniot relation obtained by combining results for the equation of state from the direct path integral Monte Carlo technique (DPIMC) and those from reaction ensemble Monte Carlo (REMC) simulations. The main idea of this proposal is based on the fact that the DPMIC technique provides first-principle results for a wide range of densities and temperatures including the region of partially ionized plasmas. On the other hand, for lower temperatures where the formation of molecules becomes dominant, DPIMC simulations become cumbersome and inefficient. For this region it is possible to use accurate REMC simulations where bound states (molecules) are treated on the Born-Oppenheimer level. The remaining interaction is then reduced to the scattering between neutral particles which is reliably treated classically by applying effective potentials. The resulting Hugoniot is located between the experimental values of Knudson et al. [Phys. Rev. Lett. 87, 225501 (2001)] and Collins et al. [Science 281, 1178 (1998)].

  17. MiniBooNE Oscillation Results 2011

    SciTech Connect

    Djurcic, Zelimir

    2012-01-01

    The MiniBooNE neutrino oscillation search experiment at Fermilab has recently updated results from a search for {bar {nu}}{sub {mu}} {yields} {bar {nu}}{sub e} oscillations, using a data sample corresponding to 8.58 x 10{sup 20} protons on target in anti-neutrino mode. This high statistics result represent an increase in statistics of 52% compared to result published in 2010. An excess of 57.7 {+-} 28.5 events is observed in the energy range 200 MeV < E{sub {nu}} < 3000 MeV. The data favor LSND-like {bar {nu}}{sub {mu}} {yields} {bar {nu}}{sub e} oscillations over a background only hypothesis at 91.1% confidence level in the energy range 475 < E{sub {nu}} < 3000 MeV.

  18. [Upper anal imperforation, treatment and results].

    PubMed

    Mollard, P

    1984-01-01

    As shown by Stephens the only element of the sphincteric mechanism which persists in case of high imperforate anus is the pubo rectalis sling of the levator. It is essential that the néo rectum be brought down to the perineum throught the sling which must be meticulously dissected and preserved. An operative technique with definition of the sling by an anterior perineal approach was described by the author. Results of the procedure in 43 patients are reported: early post operative complications (1 death, 4 occlusions, 2 ischemia of the neo rectum), anal complications (stricture, prolapses and ectropion) and urinary complications. Concerning the continence the author studied 19 patients: 16 children operated over 10 years ago and 3 adults. Of these 19: 2 are failures with stool incontinence, 10 are excellent and 7 fair. A "perfect" result was never obtained but many are compatible with a normal social life. Age is of great importance (our 3 adults became continent within several months), morning evacuations, diet, cleanliners, some drugs such a imodium are helpful adjuncts. Then the paper discusses 16 patients with desastrous results after previous surgery in another hospital. In 10 patients the new ano-rectum has been placed some that it missed a portion or all of the pubo-rectalis muscule. A further operation with re-routing resulted in marked improvement in 7 patients. A poor result with the neo-rectum in a good position means that the incontinence is related to a hypoplastic or denervated sling. A free autogenous muscle transplantation (Hakelius and Grotte) gave 4 excellent, 2 fair and 2 poor results.

  19. Annotating images by mining image search results.

    PubMed

    Wang, Xin-Jing; Zhang, Lei; Li, Xirong; Ma, Wei-Ying

    2008-11-01

    Although it has been studied for years by the computer vision and machine learning communities, image annotation is still far from practical. In this paper, we propose a novel attempt at model-free image annotation, which is a data-driven approach that annotates images by mining their search results. Some 2.4 million images with their surrounding text are collected from a few photo forums to support this approach. The entire process is formulated in a divide-and-conquer framework where a query keyword is provided along with the uncaptioned image to improve both the effectiveness and efficiency. This is helpful when the collected data set is not dense everywhere. In this sense, our approach contains three steps: 1) the search process to discover visually and semantically similar search results, 2) the mining process to identify salient terms from textual descriptions of the search results, and 3) the annotation rejection process to filter out noisy terms yielded by Step 2. To ensure real-time annotation, two key techniques are leveraged-one is to map the high-dimensional image visual features into hash codes, the other is to implement it as a distributed system, of which the search and mining processes are provided as Web services. As a typical result, the entire process finishes in less than 1 second. Since no training data set is required, our approach enables annotating with unlimited vocabulary and is highly scalable and robust to outliers. Experimental results on both real Web images and a benchmark image data set show the effectiveness and efficiency of the proposed algorithm. It is also worth noting that, although the entire approach is illustrated within the divide-and conquer framework, a query keyword is not crucial to our current implementation. We provide experimental results to prove this.

  20. Long-Term Hearing Results After Ossiculoplasty.

    PubMed

    Cox, Matthew D; Trinidade, Aaron; Russell, James Shep; Dornhoffer, John L

    2017-04-01

    To determine if the OOPS index is predictive of long-term hearing results after ossiculoplasty. Case series with retrospective chart review. Tertiary care otology practice. Adult and pediatric patients (3-88 years of age). Ossiculoplasty with cartilage tympanoplasty, with or without mastoidectomy. Primary outcome measures included short-term hearing results (pure-tone average air-bone gap [PTA-ABG] measured between 60 days and 1 year after surgery), long-term hearing results (PTA-ABG measured ≥5 years after surgery), and the rate of successful ABG closure to ≤20 dB. Secondary measures included the need for revision surgery, delayed tympanic membrane graft failure, worsening conductive hearing loss (after an initially satisfactory hearing result), and recurrence of cholesteatoma. There was no significant difference between adults and children for short-term hearing results (average post-op PTA-ABG was 18.9 dB vs. 19.8 dB, respectively; p = 0.544), long-term hearing results (average final PTA-ABG was 19.3 dB vs. 19.4 dB, respectively; p = 0.922), or rate of ABG closure to less than 20 dB (63.1% vs. 58.0%, p = 0.282). Spearman's rank-order correlation (ρ) identified a strong positive correlation between OOPS index score and average post-operative PTA-ABG (ρ = 0.983; p < 0.001; 2-tailed), as well as average long-term PTA-ABG (ρ = 0.950, p < 0.001; 2-tailed). The OOPS index makes it possible to accurately prognosticate hearing outcomes in adult and pediatric patients undergoing ossiculoplasty in both the short term and the long term.

  1. Latest results from the Pierre Auger Observatory

    NASA Astrophysics Data System (ADS)

    Lhenry-Yvon, Isabelle

    2016-07-01

    The Pierre Auger Observatory has been designed to investigate the origin and nature of Ultra High Energy Cosmic Rays (UHECR) with energies from 1017 to 1020 eV. In this paper we will review some of the most recent results obtained from data of the Pierre Auger Observatory, namely the spectrum of cosmic rays, the anisotropies in arrival directions and the studies related to mass composition and to the number of muons measured at the ground. We will also discuss the implication of these results for assembling a consistent description of the composition, origin and propagation of cosmic rays.

  2. Search Results Help - Water | ECHO | US EPA

    EPA Pesticide Factsheets

    ECHO, Enforcement and Compliance History Online, provides compliance and enforcement information for approximately 800,000 EPA-regulated facilities nationwide. ECHO includes permit, inspection, violation, enforcement action, and penalty information about facilities regulated under the Clean Air Act (CAA) Stationary Source Program, Clean Water Act (CWA) National Pollutant Elimination Discharge System (NPDES), and/or Resource Conservation and Recovery Act (RCRA). Information also is provided on surrounding demographics when available. Search Results Help explains how to navigate the search results page and describes the data presented.

  3. Scientific results of the Mars Pathfinder mission.

    NASA Astrophysics Data System (ADS)

    Golombek, M. P.

    1999-02-01

    The author, project scientist of the Mars Pathfinder mision, presents a summary of the most important scientific results from the space probe, which descended to the Martian surface on July 4, 1997. These results include the strong evidence for catastrophic water floods in the history of the planet; close-up studies of the morphology and mineralogy of Martian rocks; the characteristics, chemistry, and origin of the magnetic dust particles deposited on the Martian surface; and meteorological measurements of temperature fluctuations, pressure variations, and wind velocities.

  4. The spin physics results from COMPASS

    SciTech Connect

    Kouznetsov, O.

    2015-04-10

    COMPASS (COmmon Muon and Proton Apparatus for Structure and Spectroscopy) is a fixed target experiment at CERN dedicated to studies of the spin structure of the nucleon and of the spectroscopy of hadrons. During the years 2002-2004, 2006-2007 and 2010-2011 the COMPASS collaboration has collected a large amount of data by scattering polarized 160(200) GeV/c muons on polarized {sup 6}LiD and NH{sub 3} targets. The COMPASS results on quark and gluon helicities are discussed, as well as results on transverse spin and transverse momentum effects in semi-inclusive deeply inelastic scattering.

  5. Recent QCD Results from the Tevatron

    SciTech Connect

    Vellidis, Costas

    2015-10-10

    Four years after the shutdown of the Tevatron proton-antiproton collider, the two Tevatron experiments, CDF and DZero, continue producing important results that test the theory of the strong interaction, Quantum Chromodynamics (QCD). The experiments exploit the advantages of the data sample acquired during the Tevatron Run II, stemming from the unique pp initial state, the clean environment at the relatively low Tevatron instantaneous luminosities, and the good understanding of the data sample after many years of calibrations and optimizations. A summary of results using the full integrated luminosity is presented, focusing on measurements of prompt photon production, weak boson production associated with jets, and non-perturbative QCD processes.

  6. Early results of an objective olfactometer.

    PubMed

    Davies, C W; Donne, K E; Whittet, H B

    1998-01-01

    Although many people comment on their ability or inability to smell an odour, the accurate measurement of olfaction remains an elusive goal. Currently, there are no instruments available to objectively measure olfaction. This article outlines the design and early test results of a low cost, computer-based olfactometer which uses the frequency content of evoked potentials to quantify a subject's response to an olfactory stimulus. Clinical trials have been undertaken to establish the validity of the olfactometer and over a thousand tests have been carried out. Early results suggest that the methodology employed is appropriate and could be developed to enable a commercial olfactometer to be produced.

  7. Relativity concept inventory: Development, analysis, and results

    NASA Astrophysics Data System (ADS)

    Aslanides, J. S.; Savage, C. M.

    2013-06-01

    We report on a concept inventory for special relativity: the development process, data analysis methods, and results from an introductory relativity class. The Relativity Concept Inventory tests understanding of relativistic concepts. An unusual feature is confidence testing for each question. This can provide additional information; for example, high confidence correlated with incorrect answers suggests a misconception. A novel aspect of our data analysis is the use of Monte Carlo simulations to determine the significance of correlations. This approach is particularly useful for small sample sizes, such as ours. Our results show a gender bias that was not present in course assessment, similar to that reported for the Force Concept Inventory.

  8. Strategies, Implementation and Results of BETA

    NASA Astrophysics Data System (ADS)

    Leigh, Darren; Horowitz, Paul

    The Harvard University/Planetary Society BETA project is an all-sky, narrow-band, microwave search for extraterrestrial intelligent signals. It has been operating more-or-less continuously for the last four years during which time it has automatically scanned the sky visible from Agassiz station (+60^̂ - -30^̂) over the entire waterhole (1400-1720 MHz) five times. We will discuss BETA's search strategies, our implementation and the results of how these fared in the observatory's interference environment. We will also present qualified limits on the prevalence of transmitting civilizations given our (current) negative results.

  9. [Pulsar perimetry. A review and new results].

    PubMed

    Gonzalez de la Rosa, M; Gonzalez-Hernandez, M

    2013-02-01

    We present a review and update on Pulsar perimetry, which combines temporal frequency, contrast and spatial frequency stimuli. The effects of age, visual acuity, and learning on results are described. Data on threshold fluctuation, signal-to-noise ratio, and the possibility of reducing noise with filtering techniques are provided. We describe its dynamic range and the possibility of compensating for profound defects. Finally, we show the results obtained in normal patients and in those with ocular hypertension or initial glaucoma, as well as an analysis of glaucoma progression.

  10. Dynamic Tensile Test Results for Several Metals

    DTIC Science & Technology

    1982-04-01

    8217• AFWAL-TR-82-4026 SDYNAMIC TENSILE TEST RESULTS FOR SEVERAL METALS SUNIVERSITY OF DAYTON RESEA CH INSTITUTE ’ 300 COLLEGE PARK DR. DAYTON, OHIO... Tensile Test Results for March - September 1981 Several Metals 6. PERFORMING oDG. REPORT NUMBER UDR-TR-82-05 7. AUTHOR(s) S. CONTRACT OfR GRANT NUMBER(&) S...tensile stresses above 10 s The split Hopkinson bar tensile test (see next section) can extend this range another decade. Resolution of rapidly

  11. First results from the Fennoscandian GPS networks

    NASA Astrophysics Data System (ADS)

    Johansson, J. M.; Jaldehag, R. T. K.

    1993-12-01

    Temporal correlations were measured of data obtained by the Swedish Permanent GPS Network for Positioning (SWEPOS). The model for correlations, r(Delta t) = exp(-(absolute value of (Delta t))/tau), can be used to predict precision of averaged values for different values of tau. Results indicate that tau is approximately equal to 1 day (r less than 1% after 5 days). The results show that the network can be used in geophysical applications such as the DOSE investigation on postglacial rebound.

  12. New results from NOvA

    NASA Astrophysics Data System (ADS)

    Vahle, P.; NOvA Collaboration

    2017-09-01

    The NOvA experiment at Fermilab uses a beam of neutrinos and two detectors separated by an 810 km baseline to observe muon neutrino disappearance and electron neutrino appearance. These measurements have the potential to reveal the remaining unknowns in neutrino oscillations, namely the mass hierarchy, the 23 octant, and perhaps even hint at the violation of CP in the neutrino sector. This paper describes the current status of the NOvA experiment and present results from two years of data taking, doubling the exposure of our initial results.

  13. SMART-1 results and future lunar exploration

    NASA Astrophysics Data System (ADS)

    Foing, Bernard H.

    2008-04-01

    We present some highlights from SMART-1's science and technology payload, and the relevance of SMART-1 results and lessons for future lunar exploration. SMART-1 is the first ESA mission that reached the Moon. It is the first of Small Missions for Advanced Research and Technology. It has fulfilled its technology objectives to demonstrate Solar Electric Primary Propulsion (SEP) and to test new technologies for spacecraft and instruments. After a 15-month cruise with primary SEP and successful technology demonstration, the SMART-1 science and exploration phase, provided first lunar orbit results. The mission has been extended one year and ended with an impact on 3 September 2006.

  14. Quark Hadron Duality - Recent Jefferson Lab Results

    SciTech Connect

    Niculescu, Maria Ioana

    2016-08-01

    The duality between the partonic and hadronic descriptions of electron--nucleon scattering is a remarkable feature of nuclear interactions. When averaged over appropriate energy intervals the cross section at low energy which is dominated by nucleon resonances resembles the smooth behavior expected from perturbative QCD. Recent Jefferson Lab results indicate that quark-hadron duality is present in a variety of observables, not just the proton F2 structure function. An overview of recent results, especially local quark-hadron duality on the neutron, are presented here.

  15. Establishing precision and accuracy in PDV results

    SciTech Connect

    Briggs, Matthew E.; Howard, Marylesa; Diaz, Abel

    2016-04-19

    We need to know uncertainties and systematic errors because we create and compare against archival weapons data, we constrain the models, and we provide scientific results. Good estimates of precision from the data record are available and should be incorporated into existing results; reanalysis of valuable data is suggested. Estimates of systematic errors are largely absent. The original work by Jensen et al. using gun shots for window corrections, and the integrated velocity comparison with X-rays by Schultz are two examples where any systematic errors appear to be <1% level.

  16. The Humanoid Robot LOLA—Experimental Results

    NASA Astrophysics Data System (ADS)

    Favot, V.; Schwienbacher, M.; Buschmann, T.; Lohmeier, S.; Ulbrich, H.

    2010-09-01

    With the experience gathered during the development and construnction of the robot JOHNNIE, a new humanoid robot LOLA was built. Goal of this project is to realize a fast, human-like walking. Different aspects of this complex mechatronic system and the first experiments results are presented. The lightweight construction and the custom build multi-sensory joint drives with high torque brushless motors are introduced. The new decentralized electronic control/sensing network is also discuss as well as the simulation environment, the trajectory planning algorithm and the stabilizing walking control. Finally the first experiments result are presented.

  17. Spatially organized visualization of image query results

    NASA Astrophysics Data System (ADS)

    Ciocca, Gianluigi; Cusano, Claudio; Santini, Simone; Schettini, Raimondo

    2011-02-01

    In this work we present a system which visualizes the results obtained from image search engines in such a way that users can conveniently browse the retrieved images. The way in which search results are presented allows the user to grasp the composition of the set of images "at a glance". To do so, images are grouped and positioned according to their distribution in a prosemantic feature space which encodes information about their content at an abstraction level that can be placed between visual and semantic information. The compactness of the feature space allows a fast analysis of the image distribution so that all the computation can be performed in real time.

  18. Geothermal production results and plans in Mexico

    SciTech Connect

    Hiriart-Le Bert, G.; Gutierrez-Negrin, L.C.A.

    1997-12-31

    Almost 7,000 MWe of geothermal power plants are in operation in the world. There are estimations about this capacity could be almost 10,000 MWe in three more years. Mexico, with 743 MWe of geothermal-electric capacity, is developing more projects, taking into account the encouraging results of exploitation of these energy resources. In 1996, such results include production of 56.2 million tons of steam, generation of 5,737 gigawatts-hour (GWh) and an average capacity factor of 87.5%.

  19. Results from the BEAST experiment: an overview

    NASA Astrophysics Data System (ADS)

    Villela, T.; Beast Team

    We present the recent results of Cosmic Microwave Background (CMB) measurements obtained with the Background Emission Anisotropy Scanning Telescope (BEAST). BEAST is a 2.2 meter off-axis telescope, currently configured with an 8 element mixed Q (38-45 GHz) and Ka (25-35 GHz) focal plane and a modulating flat mirror. It was designed to operate both from high altitude balloons and from the ground. We present an overview of the recent BEAST results, including maps of CMB anisotropies, CMB power spectrum, and Galactic foreground contamination estimates.

  20. Resummed Results for Hadron Collider Observables

    NASA Astrophysics Data System (ADS)

    McAslan, Heather

    2016-07-01

    Event shapes are invaluable QCD tools for theoretical calculations and experimental measurements. We revise the definition of these observables in e+e- annihilation and in hadron collisions, and give a review of the state-of-the-art results for their resummation. Then we detail how recent work on the re-summation of event shapes in electron-positron annihilation can provide us with the tools to extend resummation of generic hadronic event shapes to NNLL accuracy. We match our findings to fixed-order results at NNLO accuracy, showing the sizeable effects of resummation in the relevant regions of phase space.