The frictional performance of gaskets is greatly affected by frictional heat in operational mine hoists. Based on fricti......

A diode-pumped alkali laser(DPAL) provides the significant promise for high-powered performances. In this paper, a mathe......

The plane-wave pseudopotential function method, based on density-functional theory, has been used to calculate the adsor......

一氧化氮(NO)是高超声速飞行器流场中重要组分,对飞行器本体和流场红外辐射传输有重要影响,因此研究NO有效带宽的快速算法很有必要......

基于网络嵌入理论和动态能力理论,面对嵌入性悖论,以动态能力为中介变量,构建了多重网络嵌入影响集群企业知识创造绩效的概念模型,......

研究了修正的Szasz—Mirakjan算子对一类绝对连续函数的逼近．首先计算该算子的一阶中心绝对矩，然后估计了另外一项S^＊n（∫^trφ（u）du,x）,......