Spectropolarimetry of core collapse supernovae has shown that they are asymmetric and often, but not universally, bi-polar. The Type IIb SN 1993J and similar events showed large scatter in the Stokes parameter plane. SN 2002ap which showed very high photospheric velocities in early phases revealed that the dominant axes associated with hydrogen, with oxygen, and with calcium were all oriented s...

Monte Carlo simulations were performed on a diamond lattice, globular protein model in which the trans conformational state is energetically favored over the gauche states (thereby perhaps favoring a beta-sheet secondary structure) and in which nonspecific nonbonded nearest-neighbor attractive interactions are allowed. If the attractive interactions are sufficiently weak that the molecule posse...

We discuss the issue of energy nonconservation in the virialzation process of spherical collapse model with homogeneous dark energy. We propose an approximation scheme to find the virialization radius as well as modify a scheme recently proposed by Maor and Lahav. By comparing various schemes and estimating the parameter q, we conclude that the problem of energy conservation may have sizable ef...

Mitigation of collapses of structural systems caused by a strong earthquake shaking is crucial to reduce the potential casualties, injuries and economic losses. Hence, accurate risk assessment of structural collapse under seismic excitations is critical in efforts to promote hazard-resilience of the society. This paper summarizes the authors’ recent efforts for accurate prediction of structural...

Corrosion causes reduction in cross-sectional area of reinforcement, deterioration mechanical properties, and degradation bonding properties between reinforced concrete, which are the most important factors leading to structural service performance. In order investigate progressive collapse mechanism a corroded concrete frame structure, failure modes, characteristics vertical displacement, load...