32,564 research outputs found

    The Fermi level effect in III-V intermixing: The final nail in the coffin?

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    Copyright 1997 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. This article appeared in Journal of Applied Physics 81, 2179 (1997) and may be found at

    Caracterização anatômica de frutos de genótipos de bananeira quanto ao despencamento.

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    As bananas são comercializadas em pencas ou buquês, geralmente com 4 a 9 frutos, sendo o despencamento dos frutos um dos principais problemas na comercialização, fazendo com que ocorra diminuição da aceitação dos consumidores e, consequentemente, diminuição do valor de mercado da fruta. Este despencamento dos frutos é uma desordem fisiológica pós-colheita associada com o amadurecimento

    Experimental analysis of lateral impact on planar brittle material: spatial properties of the cracks

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    The breakup of glass and alumina plates due to planar impacts on one of their lateral sides is studied. Particular attention is given to investigating the spatial location of the cracks within the plates. Analysis based on a phenomenological model suggests that bifurcations along the cracks' paths are more likely to take place closer to the impact region than far away from it, i. e., the bifurcation probability seems to lower as the perpendicular distance from the impacted lateral in- creases. It is also found that many observables are not sensitive to the plate material used in this work, as long as the fragment multiplicities corresponding to the fragmentation of the plates are similar. This gives support to the universal properties of the fragmentation process reported in for- mer experiments. However, even under the just mentioned circumstances, some spatial observables are capable of distinguishing the material of which the plates are made and, therefore, it suggests that this universality should be carefully investigated
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