48 research outputs found

    1864-03-18 Major S. Dayman of the 10th US Infantry forwards a copy of the muster-in rolls of veteran volunteers

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    https://digitalmaine.com/cw_me_4th_regiment_corr/1490/thumbnail.jp

    Discovery of novel alphacoronaviruses in European rodents and shrews

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    Eight hundred and thirteen European rodents and shrews encompassing seven different species were screened for alphacoronaviruses using PCR detection. Novel alphacoronaviruses were detected in the species Rattus norvegicus, Microtus agrestis, Sorex araneus and Myodes glareolus. These, together with the recently described Lucheng virus found in China, form a distinct rodent/shrew-specific clade within the coronavirus phylogeny. Across a highly conserved region of the viral polymerase gene, the new members of this clade were up to 22% dissimilar at the nucleotide level to the previously described Lucheng virus. As such they might represent distinct species of alphacoronaviruses. These data greatly extend our knowledge of wildlife reservoirs of alphacoronaviruses

    1864-03-18 Major S. Dayman of the 10th US Infantry forwards a copy of the muster-in rolls of veteran volunteers

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    https://digitalmaine.com/cw_me_4th_regiment_corr/1490/thumbnail.jp

    1864-02-15 Major S.B Dayman of the 10th US Infantry sends veteran volunteer muster roll to General Hodsdon

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    https://digitalmaine.com/cw_me_3rd_regiment_corr/1524/thumbnail.jp

    Analysis of naturally occurring radioactive material using neutron activation analysis and passive Compton suppression gamma - ray spectrometry

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    Naturally occurring radioactive material (NORM) still remains a problem in oil and gas exploration. Radioactive wastes from oil and gas drilling take the form of produced water, drilling mud, sludge, slimes, or evaporation ponds and pits. In many parts of the USA the soil contains radioactivity that is then concentrated in mineral scales on the pipes, storage tanks and other extraction equipment. The radionuclides 226Ra and its one of daughter products 210Pb and 228Ra from 232Th are the primary radionuclides of concern in the waste. We have investigated the concentrations of heavy metals in NORM using neutron activation analysis (NAA) as well as using passive radioactivity counting using Compton suppressed gamma-ray spectrometry. With a low-energy germanium counter and the Compton suppression system low detection limits were achieved to measure 226Ra, 228Ra and 210Pb. Results have shown very elevated amounts for these radionuclides as well as the heavy metals of barium and strontium

    The Multi-Isotope Process Monitor Project: FY11 Progress and Accomplishments

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    Summary The Multi-Isotope Process (MIP) Monitor represents a potentially new and efficient approach to monitoring process conditions in reprocessing facilities with the high-level goal of aiding in the “...(minimization of) the risks of nuclear proliferation and terrorism” (Office of Technology Assessment 1995). This approach relies on multivariate analysis and gamma spectroscopy of spent fuel product and waste streams to automatically and simultaneously monitor a variety of process conditions (e.g., acid concentrations, burnup, cooling time, etc.) in near real-time (NRT). While the conceptual basis for the MIP Monitor has been shown to be effective in an aqueous reprocessing system, the fundamental approach should also be viable in a pyro-processing recycle system. The MIP Monitor may be calibrated to provide online quantitative information about process variables for process control or domestic safeguards applications; or it can simply monitor, with a built-in information barrier, for off-normal conditions in process streams, making the approach well-suited for applications were it is necessary to respect proprietary information or for international safeguards applications. Proof-of-concept simulations and experiments were performed in previous years demonstrating the validity of this tool in a laboratory setting. This report details follow-on research and development efforts sponsored by the U.S. Department of Energy Fuel Cycle Research and Development (FCR&D) related to the MIP Monitor for fiscal year 2011 (FY11)

    Reduction of stiffness and mass matrices

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