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1·The influence of sampling period to NCS is discussed.

讨论了系统采样周期对网络控制系统的影响。

2·And this model can be use to direct the design of NCS.

该模型也可以用于指导网络控制系统的设计。

3·First, the factors affecting the performance of NCS are presented.

首先，对影响NCS性能的一些因素进行了分析。

4·Secondly, the scheduling algorithms of the periodic task of NCS are studied.

其次，研究了网络化控制系统周期性任务的调度算法。

5·At present, research on NCS mainly focuses on either control or network scheduling.

目前，对于网络控制系统的研究主要从控制和网络调度两个方面展开。

6·Therefore, it is imperative to analyze the stability of NCS with network-induced delay.

因此很有必要对存在时延的网络化控制系统的稳定性进行分析。

7·Firstly, analysis and modeling for the NCS with networked, induced delay are investigated.

首先，对具有时延的网络控制系统进行时延分析和建模。

8·Finally, the prospect of NCS and some issues that should be solved are pointed out in this thesis.

最后，展望了网络控制系统的发展前景，指出今后有待进一步研究的理论与应用问题。

9·At minimum, each domain controller stores three NCs in its local copy of the Active Directory database.

每个域控制器可在Active Directory数据库的本地副本中存储至少三个NC。

10·Secondly, controller design of NCS for delay compensation is studied when the controller is clock-driven.

其次，研究了控制器为事件驱动时网络控制系统的时延补偿控制。