Applying the optimization algorithm and Gauss direct elimination technique,we present a systematic approach to explore the single reciprocal screw axis of four groups of nine Bennett-based six-revolute mechanisms numerically and to elucidate their kinematic geometric properties graphically.

The paper focuses on analyzes some "paradoxical mechanisms" including classical mechanisms and modern parallel mechanisms, such as Bennett mechanism, Delta robot, Tsai s CPM mechanism and so on.

This paper, by applying the screw theory, analyses the degree of freedom of Bennett mechanism and reveals its linear natures, then probes its algebraic conditions.

Comparison of the therapeutical effectiveness between paper splint adduction fixation and plaster abduction fixation in Bennett fracture;

Bennett fracture treated with threaded compression pin

Objective To observe the effect of screw fixation and rehabilitation on Bennett fracture and evaluate its action on the healing of the fracture.

Negative kinetics generates hybrid-driven six-bar linkage,builds target function of optimum generation,and gets a synthetic result by optimization toolbox of MATLAB6.

Based on the method possible configurations of the six-bar linkage in dead-center positions were listed,and this method presents a way for the problem of whether a crank exists in a mechanism.