For analytical calculations the conduction band of Si is usually approximated by three pairs of equivalent valleys located near the X-points of the Brillouin zone. It is commonly assumed that the valley dispersion is well approximated by a non-parabolic dispersion with the transversal mass mt and the longitudinal mass ml. A constant non-parabolicity parameter α is introduced to describe deviati...

In an effort to evaluate the role of the band 3-ankyrin linkage in maintenance of red blood cell membrane integrity, solution conditions were sought that would selectively dissociate the band 3-ankyrin linkage, leaving other membrane skeletal interactions intact. For this purpose erythrocytes were equilibrated overnight in nutrient-containing buffers at a range of elevated pHs and then examined...

The linear stability analysis of an uniform shear flow of granular materials is revisited using several cases of a Navier-Stokes’-level constitutive model in which we incorporate the global equation of states for pressure and thermal conductivity (which are accurate up-to the maximum packing density νm) and the shear viscosity is allowed to diverge at a density νμ (< νm), with all other transpo...

the capability of sand constitutive models is remarkably improved by taking into account the effect of soil state in their formulations. in this study, it has been shown that considering the effect of soil state leads to better simulation of soil instability of shear banding type. to this aim, constitutive equations of a state dependent sand model are explained first. consequently, the general ...

We study the development of shear bands in a thermally softening viscoplastic prismatic body of square cross-section and containing two symmetrically placed thin layers of a different viseoplastic material and two elliptical voids with their major axes aligned along the vertieM eentroidM axis of the cross-section. One tip of each elliptical void is abutting the common interface between the laye...

The fundamental instability responsible for the shear localization which results in shear bands in amorphous solids remains unknown despite an enormous amount of research, both experimental and theoretical. As this is the main mechanism for the failure of metallic glasses, understanding the instability is invaluable in finding how to stabilize such materials against the tendency to shear locali...