999 resultados para Ségur, Philippe de (1780-1873)


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Inscripción en parte sup. derecha: "T.II Pl.72"

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An active hydrogenation Pd complex has been immobilised by impregnation on CNTs submitted to several treatments that lead to important differences in their surface chemistry and in the proportion of tubes with both ends open. Most of the hybrid catalysts are more active than the complex in homogeneous phase, but the support properties have an important impact in the catalytic activity. In general, the more developed the surface chemistry, the lower the activity. However, when CNTs are open at both ends, the Pd complex can enter the tubular cavity and an important enhancement of the catalytic activity due to a confinement effect is observed.

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Goodspeed 5, Ford 615.

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Goodspeed 6.

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Goodspeed 4, Ford 618.

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One-page handwritten copy of the vote of the Boston Selectmen responding to Croswell's complaint, as usher of the South Grammar School of Boston, against a parent.

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Handwritten indenture for a Boston property between James Tate, the agent for the estate of Edward Keithley, and Andrew Croswell.