Firstly this thesis proposes APA Model for the two major mechanisms of citation network, which are node aging mechanism and edge copyingmechanism.
首先本文对引文网络形成的两个主要机制(节点老化机制和边复制机制)进行建模。
2
The profile equation of brake cam of DD680 series motor vehicles and tool path equation for processing copying cam have been obtained by using analytical theory of cam mechanism.
It is significant for improving the efficiency of emergency logistics to establish quick, agile and efficient response mechanism when we are copying with a crisis.