Microtubule organization has been studied in serially sectioned myogenic cells in the tail muscle regeneration blastema of Rana pipiens tadpoles. In mesenchymal cells and in some premyoblasts, microtubules radiate from centriolar satellites in a cell center, while in more mature myoblasts and myotubes the centrioles no longer appear to serve as organizing centers for microtubules. In all elonga...

Abstract. This study presents a possible stress-based limit theory regarding the wrinkling occurrence of clamped surfaces. There are several theorems that describe buckling and/or phenomenon in different forms and conditions, but general description, which would represent state sheet metal forming still does not exist according to authors knowledge. could be particularly important for finite el...

in this work, an inverse finite element formulation was modified for considering material anisotropy in obtaining blank shape and forming severity of deep drawn orthotropic parts. in this procedure, geometry of final part and thickness of initial blank sheet were known. after applying ideal forming formulations between material points of initial blank and final shape, an equation system was obt...

Given a discrete eight-connected curve, it can be represented by discrete eight connected segments. In this paper, we try to determine the minimal number of necessary discrete segments. This problem is known as the min DSS problem. We propose to use a generic curve representation by discrete tangents, called a tangential cover which can be computed in linear-time. We introduce a series of crite...