Finite element method(FEM)is well received in analysis of high frequency vibrations of quartz crystal plates in ther......

Linear-rubbing is a characteristic technique in the academic school of intal exercise massage in Shanghai. It was known......

An analytical relation between burden velocity and ratio of burden to blasthole diameter is developed in this paper.This......

从一维正碰着手,应用质点动量定律,推导出力学碰撞问题中恢复系数的一般表达式,为我们正确理解恢复系数,解决与此相关的问题提供理......