In this paper, mutual information of sleep EEG sequence is estimated by the method of adaptive partition, and delay time is established by the rule of minimum mutual information. 本文以睡眠脑电序列为实验对象，采用自适应单元分割法计算互信息，按互信息极小原则确定延迟时间。
Compared with runoff division method, the rainfall deduction method is characterized with simple calculation and a reasonable result but without additional NSP monitoring data. 与传统的径流分割法相比，降雨量差值法能利用现有水文水质资料而无需增加监测项目，即可对流域非点源污染负荷作出估算，计算过程简单，结果合理。
