1,710 research outputs found

    Study of magnetic annular plasma accelerator Summary report, 15 Apr. 1964 - 14 Jan. 1966

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    Magnetic annular arc for achieving high propulsive efficiencie

    What Biotechnology Has in Store For Us

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    Author Institution: Senior Vice President, Research and Development, Monsanto CompanyBiotechnology has initiated a profound revolution in science with enormous technological and social consequences. The next 15 to 20 years will see biotechnology playing an increasingly important role in society in general. It will have impacts in the areas of human health, animal nutrition and plant agriculture. There will be 9 billion people on earth in 2025, and all the resources associated with biotechnology will be needed to enhance life in the next century

    Theoretical investigation of the lowest five ionization potentials of uranium

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    Quantum mechanical determination of lowest five ionization potentials of uraniu

    Gas chromatography of volatile metal chelates: Application of a new technique to metal analysis in natural waters

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    Originally, the application of commercially available monothiohexafluoroacetylacetone (HFAS) and its formation of volatile chelates with metals of environmental significance to rapid, multi-element analysis was under investigation. Inability to reproduce published results for the Nickel chelate led to critical examination of the chelating agent and ultimately to withdrawal of the compound from the commercial market when its identity and purity were found to be questionable. Independent synthesis of HFAS was unsuccessful and initial project objectives were abandoned. Project objectives were redirected to verification and extension of previous studies involving the lead chelate of 2,2,6,6-tetramethylheptane-3,5-dione (PIV) . Extraction studies were conducted using flameless atomization atomic absorption for analysis but are of questionable value as a result of analytical inconsistencies. Gas chromatographic studies indicated previously reported synthesis of Pb(PIV)â‚‚ had likely not been achieved. Both HFAS and PIV studies were unsuccessful and have resulted in programs of independent synthesis and continued research at The University of Tennessee where the Principal Investigator is now in residence.U.S. Department of the InteriorU.S. Geological SurveyOpe

    Asymptotic defectiveness of manufacturing plants: an estimate based on process learning curves

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    The paper describes a method for a preliminary estimation of asymptotic defectiveness of a manufacturing plant based on the prediction of its learning curve estimated during a p-chart setting up. The proposed approach provides process managers with the possibility of estimating the asymptotic variability of the process and the period of revision of p-chart control limits. An application of the method is also provided
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