A wheeled robot operating on various complex terrains with scattered obstacles and steep slopes must be capable of surmounting obstructions and coping with the extreme driving environment.This paper proposes a body rotation mechanism that controls the load distribution on the robot wheel for color touch 7/97 the robot to surmount rocky obstacles an

here Abstract We consider the scattering matrices of massive quantum field theories with no bound states and a global O(N) symmetry in two spacetime dimensions.In particular we explore the space of two-to-two S-matrices of particles of mass m transforming in the vector representation as restricted by the general conditions of unitarity, crossing, a

The ultimate recovery of shale oil is mostly dependent upon the occurrence and content of free oil within the nano-scaled pore network of shale simply southern cat shirt reservoirs.Due to the nanoporous nature of shale, quantitatively characterizing the occurrence and content of free oil in shale is a formidable undertaking.To tackle this challenge