Personalized service systems are an effective way to help users obtain recommendations for unseen items, within the enor......

Herman Nothrop Frye was a famous Canadian literary critic and theorist. According to him, symbol was :“Any unit of any ......

Recovery performance in the event of failures is very important for distributed real-time database systems. This paper p......

研究迷宫密封对某一工程涡轮泵转子系统动力特性的影响，迷宫密封力采用Muszynska非线性力模型，应用有限元法建立转子系统的动力学方......