32,615 research outputs found
The Fermi level effect in III-V intermixing: The final nail in the coffin?
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.
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
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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