in this paper we introduce the concept of generalized baer-invariant of a pair of groups with respect to two varieties ? and ? of groups. we give some inequalities for the generalized baer-invariant of a pair of finite groups, when ? is considered to be the schur-baer variety. further, we present a sufficient condition under which the order of the generalized baer-invariant of a pair of finite ...

The object recognition of the vision robot was studied in order to address problem how an industrial can rapidly and autonomously identify grasp a specified target workpiece under multi-target conditions, apply technology design intelligent grasping system for robots. research method is based on pattern image, detection positioning research, relationship between visual image grasping, proposed ...

In a number of industrial, space, or mobile systems applications, reaction forces and moments transmitted by a manipulator to its base are undesirable. Based on force and moment transmission analysis, a three DOF redundant manipulator design is selected aiming at reactionless motions. Dynamic reaction forces are eliminated by using force balancing. Reaction moments are eliminated by following r...