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Over the past decade, significant attention has been paid to flow in microtubes due to the develop- ment in micro fluidic devices and systems. The un- derstanding of flow characteristics such as pressure drop is important in the design and process control of microfluidic devices. However, experimental evidence indicates sig- nificant departure of flow characteristics from the predictions of conventional theory for smaller di- ameter microtubes. Pfahler et al.(1991) observed that as the channel… 相似文献
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石兴 《新校园(当代教育研究)》2015,(1)
版式设计是在版面上将所有有限的视觉元素进行整合,将理性的感觉通过视觉的方式表现出来,是一种将个人风格和艺术特色有机结合的形式,在传达信息的同时,也会产生视觉上的美感。版式设计不仅仅是关于排列和组合的内容,更是技术与艺术的高度统一。本文也简要介绍了点、线、面等基本要素在版式中的运用,对版面的感染力和艺术表现力的开拓有十分大的影响力。 相似文献
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