Nowadays deep excavations are needed for construction of foundation of high rise buildings, providing space for parking and etc. In some cases deep excavations may be constructed in the vicinity of the subway tunnels and causes unpredicted extra displacements and internal forces in tunnel lining of tunnels which were not designed for them and consequently affect serviceability of tunnel. Theref...

Two-dimensional (2D) geometrical shape-shifting is prevalent in nature, but remains challenging in man-made "smart" materials, which are typically limited to single-direction responses. Here, we fabricate geometrical shape-shifting bovine serum albumin (BSA) microstructures to achieve circle-to-polygon and polygon-to-circle geometrical transformations. In addition, transformative two-dimensiona...

Finite element method (FEM) for both linear and nonlinear cases is widely used solving time-dependent problems related to the geometrical configuration of electrical HTS devices AC losses. This paper presents our FEM models in development cables. Transient 3D have been developed optimization coaxial triaxial 2G In these models, only magnetic materials are considered. The transient 2D model was ...

Traditional 3D modeling systems are commonly intended for designing complicated and exact objects, but they are not always suitable for quick design of freeform shapes. It is because these systems are highly complex and user has to follow a long and tedious learning process before being able to create meaningful models. For these reasons, in recent years there have been many efforts in developi...

Recently, many optimal designs for axial flux permanent magnet (AFPM) motors were performed based on finiteelement (FE) analysis. Most of the models are based on reduction of 3D problem to 2D problem which is not accurate for design aspects. This paper describes an accurate electromagnetic analysis of a surface mounted, 28 pole AFPM with concentrated stator winding. The AFPM is modeled with thr...

3D building segmentation is an important research issue in the remote sensing community with relevant applications to urban modeling, cloud-to-cloud and cloud-to-model registration, 3D cartography, virtual reality, cultural heritage documentation, among others. In this paper, we propose automatic, parametric and robust approaches to segment façades from 3D point clouds. Processing is carried ou...

This paper presents the comparison study between two design method of a single sided Linear Planner Switched Reluctance Motor (LPSRM) with an a translator and a passive stator .The work presents a LSRM complete design by 2-D Finite Element Analysis method (2-D FEA) and rotary to linear conversion method design . A detailed analysis of the influence of various geometrical parameters on the force...

This article presents a novel system called MARINA for reconstructing 3D architectural models from 2D images. MARINA relies on Projective Geometry and Grassman-Cayley Algebra to perform the 3D reconstruction in a formal way through geometrical reasoning. MARINA follows a user-centered process, allowing users to draw points and lines over images (photographs, hand sketches or engravings) and spe...

often in modeling the engineering optimization design problems, the value of objective function(s) is not clearly defined in terms of design variables. instead it is obtained by some numerical analysis such as fe structural analysis, fluid mechanic analysis, and thermodynamic analysis, etc. yet, the numerical analyses are considerably time consuming to obtain the final value of objective functi...