A Surface Displaced from a Manifold

Analysis the morphometric features of KabirKooh landslide

The KabirKooh landslide was studied as one of the immediate catastrophic events which causes falling rocks from the KabirKooh hillside and the obstruction of the Seymarreh river course and also formed a lot of geomorphologi­cal shapes in this area. This landslide was located at 5 km of the Poldokhtar city at the south between the Ilam and Lorestan province. The main purpose of this research to ...

The Symplectic Topology of Ramanujam’s Surface

Ramanujam’s surface M is a contractible affine algebraic surface which is not homeomorphic to the affine plane. For any m > 1 the product M is diffeomorphic to Euclidean space R. We show that, for every m > 0, M cannot be symplectically embedded into a subcritical Stein manifold. This gives the first examples of exotic symplectic structures on Euclidean space which are convex at infinity. It fo...

Soil and Rock Slope Stability Analysis based on Numerical Manifold Method and Graph Theory

Limit equilibrium method, strength reduction method and Finite Difference Methods are the most prevalently used methods for soil and rock slope stability analysis. However, it can be mention that those have some limitations in practical application. In the Limit equilibrium method, the constitutive model cannot be considered and many assumptions are needed between slices of soil and rock. The s...

On images of continuous functions from a compact manifold to Euclidean space

Thermomechanical Analysis of Exhaust Manifold and Catalyst for with Fluid Structure Interaction

Design of exhaust manifold is important due to its effects on performance of catalyst, thermal and thermo- mechanical loads. In this paper, first transient analysis of fluid was carried out with FLUENT software, then time-average temperature and heat transfer coefficient contour for three cycle were mapped on inner surface of exhaust manifold with MATLAB software for thermomechanical analysis. ...