81 resultados para pacs: systems theory application in education
em University of Michigan
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Mode of access: Internet.
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Federal Transit Administration, Washington, D.C.
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"June 1991"--T.p. verso.
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"December 1992"--T.p. verso.
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Mode of access: Internet.
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"Prepared under Contract No. CST 263 between the National Academy of Sciences and the National Bureau of Standards."
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Because the use of filters to sample particulate matter suspended in the upper atmosphere has been investigated and has yielded rather disappointing results, an examination of other methods of upper atmospheric sampling is desirable, and this is the aim of the present report. The nature of any radioactive material, and its relation to the size and composition of the suspended particles is of particular interest.
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National Highway Traffic Safety Administration, Washington, D.C.
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National Highway Traffic Safety Administration, Washington, D.C.
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Vol. 2 by H. E. Moore, J. H. Russel, and D. G. Ferguson.