This paper starts with developing kinematic and dynamic model of a snake shape robot in serpentine locomotion and finishes with actual experimentation. At the beginning the symmetrical and unsymmetrical serpenoid curves are introduced. Kinematics and dynamics of a snake robot on flat and inclined surfaces are obtained for a general n-link robot. SimMechanics toolbox of MATLAB software is employ...

We study the arc and curve complex AC(S) of an oriented connected surface S of finite type with punctures. We show that except for some finitely many special surfaces, the simplicial automorphism group of AC(S) coincides with the natural image of the extended mapping class group of S in that group. We also show that for any vertex of AC(S), the combinatorial structure of the link of that vertex...

This contribution addresses a problem of surface reconstruction from the point clouds which is applied in many scientific and engineering applications. Our aim is to obtain a visualization of data from 3D scanning and document the real objects digitally. We describe the digital reconstruction problem and the methods of surface reconstruction. We mention several known algorithms for surface reco...

There is a need for registration algorithms to compare functional data, to compute distances between healthy and disease anatomies, and to build probabilistic atlases between the healthy and disease groups. To do this, medical images can be directly processed via 2d or 3d image matching, or after segmentation: extraction of some features points, curves or surfaces of interest. In this case, the...

Background: Postpartum hemorrhage (PPH) is considered as one of the major causes of maternal mortality worldwide. The most effective risk factors have been suggested in various studies on risk nomogram for the prediction of PPH. Aim: This study aimed to determine the diagnostic value of the risk nomogram for the prediction of PPH. Method: Thi...