970 resultados para fossil wood


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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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Bibliography: p. [34]

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"References" at end of each chapter.

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"General bibliography and publishers' addresses": p. 482-493. "Periodicals": p. 499.

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"Supersedes [his] Manual on preservative treatment of wood by pressure, U.S. Dept. Agr. Misc. pub. 224."