Crescenzi, P., G. Di Battista and A. Piperno, A note on optimal area algorithms for upward drawings of binary trees, Computational Geometry: Theory and Applications 2 (1992) 187-200. The goal of this paper is to investigate the area requirements for upward grid drawings of binary trees. First, we show that there is a family of binary trees with n vertices that require Q(n logn) area; this bound...

in this work, a numerical study of sheet cavitation has been performed on dtmb4119 marine propellers, using boundary element method (based on potential flow assumption). in propeller design, various parameters of geometry and flow are incorporated. so, a computer program is needed to take all parameters into account and solve the flow. capability of analyzing the wetted and cavitating flow arou...

The study group aims to support research in computational geometry in structural engineering by bringing expert researchers and practitioners together in order to increase and share knowledge. Research themes relate to digital design and the description of structural geometry based on computational methods and techniques. The use of computational methods and software tools in the creation of st...

Computational geometry and combinatorial algorithms play an important role in algebraic geometry. We report on several computational geometry and combinatorial algorithms needed for computing the genus of a plane complex algebraic curve with numeric coefficients.

In this article, stress analysis and energy estimation during cold-roll forming of symmetrical channel sections have been discussed. Geometry of sheet strip is pre-estimated by a shape function. Then longitudinal, transversal and shear strains have been calculated. Using both the Levy-Mises and the Prandtl Reuss equations, and also considering the Bauschinger effect, stress distributions have b...

We consider the problem of finding the localization of radioactive source by using data from a digital camera. In other words, the camera could help us to detect the direction of radioactive rays radiation. Therefore, the outcome could be used to command a robot to move toward the true direction to achieve the source. The process of camera data is performed by using image processing and computa...