Scene graph is a infrastructure of the virtual reality system to organize the virtual scene with abstraction, it can provide facility for the rendering engine a
To achieve human lower limbs rehabilitation training,the exoskeleton lower limbs rehabilitation robot is designed. Through respective motor driving, the retardi
I.An overview of the pastdevelopmentNorth China Power Network (NCPN) is aninterprovincial regional network in NorthChina serving a territory which covers Beijin
To reduce the amount of labor in the sheet metal stamping industry, improve the processing efficiency and safety factor and realize the automatic production of
The most difficult problem in surface intersection is to determinate all the initial tracing points. Collinear normal line is a power tool for solving this prob