关于“知道”与“什么”的逻辑思考

从“知识”的逻辑结构与逻辑表示的分析，讨论“知道”与“什么”的关系。“知识”的概念尚未有定论，更多的人所熟知的是“知识是4个W”或“知识是6个W1个Q”这样的概括。以模态词“知道”为一个算子K、模态词“什么”为一个算子W，建构一个逻辑系统KW，可实现对知识的4个W或者6个W的逻辑刻画。KW系统至少具有对知识的描述有较高的准确性等3种优越性。     

Theoretical Analysis for the Motion and Temperature of Melt Droplets in Spray Degassing Process

The motion of melt droplets in spray degassing process was analyzed theoretically. The height of the treatment tank in spray degassing process could be determined by the results of theoretical calculation of motion of melt droplets. To know whether the melt droplets would solidify during spraying process, the balance temperature of melt droplets was also theoretically analyzed. Then proof experiments for theoretical results about temperature of melt droplets were carried. In comparison, the experimental results were nearly similar to the calculation results.