提出三种脉冲混沌同步的新方案，第一种是基于定时周期抽样耦合，并在接收端通过滤波恢复出同步控制信号。
Based on the ideas that the bond waves of chaotic attractor play an important role in chaotic synchronization, three synchronization schemes with simulation results are presented in this paper.
对于每个抽样周期，将 Lotus Domino 服务器实例使用的处理器时间（秒）除以活动用户的数量，就得到这些数字。
This depiction is obtained by dividing the number of processor seconds used by the Lotus Domino server instance into the number of active users for each sample period.
对近期数学学术期刊的出版周期现状做了抽样统计。
The sampling statistics of publishing period have been made for the recently published mathematical journals.
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