查询词典 Petri

Different from the case of strict minimal siphons in a net system, the number of elementary ones is bounded by the smaller of place count and transition count. Based on the ideas mentioned above, this thesis proves that the set of elementary siphons is not unique, while different ones may lead to different control results.

本文在此研究的基础上，论证了网系统中的基本信标的不唯一性，控制不同的基本信标可以得到不同的控制效果，进而提出了最优基本信标的概念并给出了相应的计算方法，应用这一计算方法可以在多项式时间内求得一组最优基本信标，也就是说，控制该组基本信标相对于其他的基本信标可以使得系统Petri网模型具有最多的可达状态，这在实际中，意味着系统具有更大的灵活性。

Afterwards they were cultivated in Petri dish in the constant temperature incubator in Knop until the length of epicotyl of broad bean was perhaply 3 cm that could be treated by ultraviolet B radiation.

当蚕豆的上胚轴长到大约 3cm时，在光背景为 70μmol· m- 2 · s- 1条件下，分别用 1 。0 2、3.0 3、4.52 k J· m- 2 的 UV- B辐射蚕豆的上胚轴 7h。

Also, the general solutions of the firing vector in the state equation of a Petri net are proposed.

这些方法都是基于网关联矩阵的满秩分解。

The extended three partition problem which is the general case of the three partition problem is proposed in this paper.

1引言Petri网是一种分布式系统模型，它作为系统建模和分析的工具已被广泛应用于多个领域[1-6]。

The probability Petri net was used to model the process of the ship fire.

运用火灾动力学与统计理论耦合的火灾风险评估方法，对舰船火灾危险性进行评估。

It is, in fact, a system model with a formal definition and a graphical representation.

因此如何结合对象技术和Petri网一直是一个研究热点。

Millions of lives have been saved by an untidy scientist leaving a stack of unwashed Petri dishes to go mouldy.

这种曾经救过千百万人性命的药物，其实是由一位将大量没有清洗的实验容器堆积在一起致其变霉的不太整洁的科学家发现的。

Based on the incidence matrix ,properties of system functions and data accuracy were analyzed.

为实现Petri网模型中的数据分析和功能分析，提出了基于关联矩阵的方法。

And all of these approaches are derived from the full rank decomposition technique for the incidence matrix.

讨论了Petri网系统状态方程存在整数解的条件，即可达性的一个必要条件。

To divide the system into subsystems automaticallywe present a clustering algorithm on the basic of incidence matrix.

在基于Petri网系统建模的基础上，提出了系统功能分析、数据分析的新方法。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。