purpose the aim of this study was to investigat the offensive efficiency of the professional handball players forming the front and rear lines. methods our investigation was carried out on four matches (final, semi-finals and classifying match) at the 19th male handball world championship “tunisia 2005”. finalist teams were tunisia, france, croatia, and spain. matches were recorded using 5 digi...

This paper presents a markerless motion capture pipeline based on volumetric reconstruction, skeletonization and articulated ICP with hard constraints. The skeletonization produces a set of 3D points roughly distributed around the limbs’ medial axes. Then, the ICP-based algorithm fits an articulated skeletal model (stick figure) of the human body. The algorithm fits each stick to a limb in a hi...

This paper addresses the workspace analysis of two 3-DOF translational parallel mechanisms designed for machining applications. The two machines features three fixed linear joints. The joint axes of the first machine are orthogonal whereas these of the second are parallel. In both cases, the mobile platform moves in the Cartesian x−y−z space with fixed orientation. The workspace analysis is con...

Introduction The union of the spherical talar head with the cupped shaped navicular shows the general characteristics of a ball-and-socket joint [1]. As such, the talonavicular joint should be expected to demonstrate three rotational degrees of freedom. Yet, conventional approaches to foot motion analysis provide little opportunity to assess motion of the intrinsic foot joints. A new approach, ...

This investigation concerns with the mechanical efficiency of Cardan joints. The model includes also the effects due to manufacturing and mounting errors and the influence of rotation speed on the efficiency. The joint has been modeled as an RCCC spatial linkage and the full dynamic analysis performed by means of dual vectors algebra. NOMENCLATURE [ Â ]i+1 i Dual transform matrix. ai Minimum di...

in this article, the factors considered in the evaluating performance of urban management in ardabil are classified in two axes: 1. enabling and supporting entrepreneurs (with 10 components) and 2. providing the appropriate environment for entrepreneurs (with 6 components) and their importance are determined using the technique of multiple comparisons. the statistical population in this study a...

This paper presents an aerial manipulation robot consisting of a hexa-rotor equipped with 2-DOF (degree freedom) Cartesian base (XY–axes) that supports 1-DOF compliant joint arm integrates gripper and elastic linear force sensor. The proposed kinematic configuration improves the positioning accuracy end effector respect to robotic arms revolute joints, where each coordinate position depends on ...

BACKGROUND To assist in the treatment of gait disorders, an inverse and forward 3D musculoskeletal model of the lower extremity will be useful that allows to evaluate if-then scenarios. Currently available anatomical datasets do not comprise sufficiently accurate and complete information to construct such a model. The aim of this paper is to present a complete and consistent anatomical dataset,...

in the present study, 2, 4-dichlorophenoxyacetic acid (2, 4-d) was assessed individually for its effectiveness to induce somatic embryogenesis in tea (camellia sinenesis l.). embryonic axes and cotyledons explants were dissected from the seeds. explants were cultured on murashige and skoog (ms) medium containing 0, 1 and 5 mm 2, 4-d alone for embryonic axes and 0, 1 and 5 mm 2, 4-d along with 0...