1Korea Bridge Design and Engineering Research Center, Seoul National University, Seoul 151-742, Korea 2Structure Department, DONG IL Engineering Consultants Co. Ltd., Seoul 138-200, Korea 3Department of Civil Engineering, Seoul National University, Korea 4Structural Design Department, Korea Engineering Consultants Corp., Seoul 143-715, Korea 5School of Civil, Urban, and Geosystem Engineering, S...

1 Department of Geosystem modelling, University of Bremen, P.O. Box 330440, 28334 Bremen, Germany 2 DFG Research Center Ocean Marigins, University of Bremen, P.O. Box 330440, 28334 Bremen, Germany 3 Institute of Geosciences, Eberhard Karls University of Tübingen, Sigwartstrasse 10, 72076 Tübingen, Germany Received: 17 October 2007 – Accepted: 17 October 2007 – Published: 26 November 2007 Corres...

the present study is concerned with optimal shape determination of inhomogeneous and temperature dependent domains under steady state heat conduction. such situations are important in many thermal design problems, especially in shape design of electronic components and chips. in the present paper, we formulate the shape optimization problem based on volume minimization of heat conductive materi...

Nanocrystalline materials show a higher strain-rate sensitivity in contrast to the conventional coarse-grained materials and a different grain size dependency. To explain these phenomenon, a finite element model is constructed that considers both grain interior and grain boundary deformation of nanocrystalline materials. The model consist of several crystalline cores with different orientations...

REY area has been located in Tehran Province and several archaeological ruins of this area indicate that the settlement in this area has been started since several thousand years ago. In this paper, the main investigation items consist of analysis of oil components and groundwater quality inside the wells. By finding the contents of oil in the well, it is possible to find out the pollution sour...