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In this research, optimization process of axisymmetric extrusion dies is proposed. Plastic zone is analyzed using finite element method in the Eulerian system with flow formulation. The die profiles are defined by Bezier curves with six control points. Two effective functions are considered in this research; standard deviation of the strain rate and the rate of energy consumption during extrusi...

We present a novel method that provides an accurate and precise estimate of the length of the boundary (perimeter) of an object, by taking into account gray-levels on the boundary of the digitization of the same object. Assuming a model where pixel intensity is proportional to the coverage of a pixel, we show that the presented method provides error-free measurements of the length of straight b...

This article aims to study the visual tradition of Woman Clothed with Sun from chapter 12 Book Revelation in medieval times, particular formation, continuity and variations various iconographic types. For this purpose, we firstly approach main sources, both exegesis or interpretation Church Fathers. Secondly, analyse first preserved representations (ninth twelfth centuries) that correspond exam...

The information age has facilitated knowledge sharing among different parts of the world. Research ideas and methodologies are shared through conferences and publications by MIS researchers in Europe and in North America. However, there has been little movement toward a more uniform research paradigm on the two continents. One reason may be the difference in research tradition, which is strongl...

in his seminal book on the historical periods of western attitudes toward death, philippe aries describes four consecutive periods through which these attitudes evolved and transformed. according to him, the historical attitudes of western cultures have passed through four major parts described above: “tamed death,” one’s own death,” “thy death,” and “forbidden death.” this paper, after explori...