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Abstract In this paper, we study the population dynamics of an invasive species in heterogeneous environment which is modeled by… Expand In this paper we consider the diffusive competition model consisting of an invasive species with density $u$ and a native species… Expand In this paper, various higher-order shear deformation beam theories for bending and free vibration of functionally graded beams… Expand We investigate, from a more ecological point of view, a free boundary model
considered in  and  that describes the… Expand A meso-scale ballistic material model for a prototypical plain-woven single-ply flexible armor is developed and implemented in a… Expand Abstract This paper presents an investigation on the longitudinal vibration of a double-nanorod-system (DNRS). The double-nanorod… Expand The bending problem of a transverse load acting on an isotropic inhomogeneous rectangular plate using both two-dimensional (2-D… Expand We study the dynamics of an elastic rod-like filament in two dimensions, driven by internally generated forces. This situation is… Expand SUMMARY Boundary conditions come from Nature. Therefore these conditions exist at natural boundaries. Often, owing to limitations… Expand