Gene drift in genetic resources during the alternation of generations is simulated by imitating the process of random sampling with the random number produced by computer. 用计算机产生的随机数来模仿随机抽样过程,对种质资源世代更替中基因漂变进行了模拟。
Double graded doping and drift dominated InP solar cell and its computer simulation 双梯度掺杂漂移机制InP太阳电池及其计算机模拟
GDA software, in this paper, is employed to model the stress distribution at arched drift. The results from computer modeling is the important basis for the analysis of stress rock burst relationships. 借用GDA软件来模拟开挖周边的应力重分布,在此基础上,重点分析了拱形洞室的拱顶、拱肩、两侧及底角的应力分布与岩爆的关系。