The concept and the properties of partial fractal mapping are presented and discussed, which leads to a general theory and framework of a class of hybrid image coding systems.

提出并讨论了部分分形映射的概念和性质，给出一类混合图像编码系统的通用理论和算法框架。

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In this paper, power electronic circuits were considered as one type hybrid dynamic systems and the concept and theory of switched linear systems were introduced to DC-DC converter control systems.

该文将电力电子电路视为一类混杂动态系统，尝试在DC - DC变换器控制系统研究中引入切换线性系统的概念和理论。

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However, it is very difficult to analyze and synthesize this process directly by the theory of hybrid dynamical systems.

炼钢连铸过程是一个复杂而又典型的混合动态系统，但现有的混合动态系统理论难以对此进行直接分析和综合。

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