Let K be a bounded convex domain in R2 symmetric about the origin. The critical locus of is defined to (non-empty compact) set lattices Λ smallest possible covolume such that Λ∩K={0}. These are classical objects geometry numbers; yet all previously known examples loci were either finite sets or unions closed curves. In this paper we give new construction which, particular, furnishes domains hav...

With the explosion in the use of the Internet for ebusiness, entertainment, and wireless communication, Internet control and routing infrastructure are facing limitations in terms of the increasing scale. Because the Internet is now mission-critical to many industries, providing high availability (HA) is a major concern. In this paper, we discuss the scaling limitations of the routing and signa...

based on two-dimensional plane stress and bifurcation functional from hill's general theory in polar coordinate the critical condition for elastic wrinkling of the flange of a circular blank ( the wave number in the flange and wrinkled area) during the deep-drawing process are obtained analyticaly to improve the previous given results. in this analytical study, the elastic limitation of the mat...

Micropolar plasticity provides the capability to carry out post-failure simulations of geo-structures due to microstructural considerations and embedded length scale in its formulation. An essential part of the numerical implementation of a micropolar plasticity model is the integration of the rate constitutive equations. Efficiency and robustness of the implementation hinge on the type of int...

This study is limited to study of buckling analysis of a sandwich cylindrical shell with functionally graded face sheets and homogenous core. High-order sandwich plate theory is improved by considering the in-plane stresses of the core that usually are ignored in the analysis of sandwich structures. Assume that all properties of the face sheets and the core are temperature dependent. Strain com...