In the light of screw addition, the distribution of instantaneous axes along the common perpendicular of the two screws is determined and all possible sorts of
To enhance the technology and efficiency of strata injection is a problem to be solved urgently. Because of effected by the rough and poor production conditions
Factors that influence enterprise resource planning(ERP) implementation in enterprises were described, and according to their interaction with each other, these
Through the analysis of forces acting on the waste rock in the gas-solid fludized bed.the waste rock velocity equations and displacement equations in the gas-so
Lyapunov exponents can act as the judgment rule whether the systems is chaotic or not,we propse an approach to control chaotic systems by varying the Lyapunov e
Diamond like carbon films have been successfully deposited on the steel substrate, by using a single ion gun with varying beam source. The films may appear blue