968 resultados para Johnson, William, 1771-1834.


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Mode of access: Internet.

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With reproductions of original title-pages.

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Mode of access: Internet.

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Mode of access: Internet.

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Vol. 3 has title: Annals of a publishing house. John Blackwood, by his daughter Mrs. Gerald Porter ... Edinburgh and London, W. Blackwood and sons, 1898.

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"Chronological catalogue of the works of William Hazlitt": v.1, p. [xxii]-xxxii.

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A major drawback in using bulk metallic glasses (BMGs) as structural materials is their extremely poor fatigue performance. One way to alleviate this problem is through the composite route, in which second phases are introduced into the glass to arrest crack growth. In this paper, the fatigue crack growth behavior of in situ reinforced BMGs with crystalline dendrites, which are tailored to impart significant ductility and toughness to the BMG, was investigated. Three composites, all with equal volume fraction of dendrite phases, were examined to assess the influence of chemical composition on the near-threshold fatigue crack growth characteristics. While the ductility is enhanced at the cost of yield strength vis-a-vis that of the fully amorphous BMG, the threshold stress intensity factor range for fatigue crack initiation in composites was found to be enhanced by more than 100%. Crack blunting and trapping by the dendritic phases and constraining of the shear bands within the interdendritic regions are the micromechanisms responsible for this enhanced fatigue crack growth resistance.

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Resumen: Descripción: retrato de mujer con niña en brazos, ambas mirando de frente

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"Printed by Alfred Martien, 21 South Seventh Street, Philadelphia."--verso of title page.

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Includes reproductions of original title-pages.

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Includes 51 mounted albumen prints depicting members of tribes and social classes in Bombay, India.

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Mode of access: Internet.