963 resultados para Wood Preservation


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Issued originally as Forestry circular no. 3.

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"For submission to U.S. Army Construction Engineering Research Laboratories, Champaign, Illinois"

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Leonardo da Vinci; 7 51/64 in.x 6 19/64 in.; pen, ink and red chalk on paper

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Robert Campin; oil on oak

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Robert Campin, workshop of; oil on oak

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The generation of heat due to the radioactive decay of plutonium in the form of plutonium dioxide stored in wooden containers is considered. The results of two experiments in which plutonium dioxide is placed inside wooden blocks and the temperature rise measured at various points is reported. Heat transfer calculations are then performed to show that the data obtained are those which would be expected, i.e., that Fourier's Law adequately describes the situation. The heat build up in a proposed wood moderated shipping container is calculated, using some of the assumptions verified in the described experiments.

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Stanford Research Institute conducted this study to provide information to assist the Atomic Energy Commission in preparing a research and development program leading to the commercial application of radiation pasteurization for selected fruits and vegetables. Under the Quartermaster Corps' extensive program of research on irradiated foods, the five fruits and vegetables (strawberries, peaches, citrus fruits, grapes and tomatoes) of interest to the AEC have been irradiated experimentally. Results are inconclusive, but there are indications of both shelf-life extension and unfavorable radiation effects observed at dose levels below 500,000 rads.