930 resultados para random spacing
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Mössbauer analyses were conducted on a sample of saponite selected from DSDP Leg 69 basalt core. The sample was initially placed within a nitrogen-purged container on-board Glomar Challenger approximately three hours after recovery, where it remained until analysis. The Mössbauer data revealed an original, in situ Fe2O3/FeO ratio of 0.46, with both Fe**2+ and Fe**3+ in octahedral coordination. With controlled exposure to air under ambient laboratory storage conditions, the proportion of Fe**3+ increased from an original 30% to 51% over a period of about 11.5 months. The Fe**3+ thus produced remained in octahedral coordination, and no observable changes occurred in the physical appearance of the sample.
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Texas Department of Transportation, Austin
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National Highway Traffic Safety Administration, Office of Driver and Pedestrian Programs, Washington, D.C.
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Transportation Department of Office of University Research, Washington, D.C.
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National Highway Traffic Safety Administration, Office of Driver and Pedestrian Programs, Washington, D.C.
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A chapter supplementary to the author's Choice and Chance.
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Vita.
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"Errata" ([3] p.) inserted.
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"UIUCDCS-R-74-679"
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"COO 1469-0209."
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"Supported in part by the Office of Naval Research under Contract N000 14-67-A-0305-0007."
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"This work has been supported by Contract N6ori-71 Task XXX United States Navy ONR NR 044 001"