President's Message

Charles Muniak
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Abstract

Many years ago when I was doing biomedical research I had occasion to carefully study what is now a classic medical textbook [Ref 1]. It explained that the human body is composed of thousands of control systems; some operate at the cellular level, some at the level of organs and some at the whole-body level. Examples of these systems include the regulation of oxygen and carbon dioxide in the extracellular fluid as well as the insulin control system that maintains the concentration of glucose in the blood. Life goes on when all these control systems function properly. Moderate dysfunction of some of these control systems results in illness, while extreme dysfunction results in death. This, I believe, has some parallels to complex engineered systems.
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许多年前,当我在做生物医学研究的时候,我有机会仔细研究了一本现在是经典的医学教科书[参考文献1]。它解释说,人体是由数千个控制系统组成的;有些在细胞水平上运作,有些在器官水平上运作,有些在全身水平上运作。这些系统的例子包括细胞外液中氧气和二氧化碳的调节,以及维持血液中葡萄糖浓度的胰岛素控制系统。当所有这些控制系统正常运行时,生命就会继续。其中一些控制系统的中度功能障碍会导致疾病,而极端功能障碍会导致死亡。我相信,这与复杂的工程系统有一些相似之处。
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