The influences of chemical segregation and phase transformation on liquid density variation during solidification of Ni-based supperalloy Inconel 718 were inves
Much research effort has been devoted to economic design of.(X) & S control charts,however,there are some problems in usual methods.On the one hand,it is diffic
A novel method for rapid preparation of Bi2Te3 nano-sized powders with an average particle size of about 70 nm was developed.A starting powder mixture consistin
The problem of finite-time stabilization for uncertain nonlinear systems is investigated.It is proved that a class of high-order nonlinear systems in the lower-