In this modeling scenario we discuss the representation of cyclic (iterative) behavior in a process model.

在此建模场景中，我们将讨论流程模型中的循环(迭代)行为的表示形式。

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A well-formed nesting of cyclic and branching process fragments is a good approach to reduce the possibility of modeling errors.

设计形式良好的循环嵌套和流程片断分支，将是降低出现建模错误的可能性的有效方式。

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To correctly capture cyclic processes, add backward connections to the process model that connect to an upstream activity.

要正确捕获循环流程，请在流程模型中添加连接上游活动的逆向连接。

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There's no change in them, and then we also looked at some at non-state functions, work and heat, and saw that those aren't zero going around a cycle. Of course you can do work in a cyclic process, and heat can be exchanged with the environment at the same time.

它们不会有变化，然后我们研究了,一些非态函数，功和热量，并看到,沿着循环行进一周的话,它们并不是零，当然你可以在,一个循环过程中做功，而同时热量可以在系统,与外界环境之间进行交换。

麻省理工公开课 - 热力学与动力学课程节选

Now you start a process, a cyclic process, where the first step in the process is denaturing the DNA.

然后你就可以开始一个循环步骤,第一步是使DNA变性

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One of the reasons for this, as demonstrated in a recent paper by researchers at Yale medical school, is that when a person experiences extreme stress, or just goes through the normal process of aging, the prefrontal cortex accumulates cyclic-AMP.

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