论上古汉语第三人称代词“彼”

本文对上古有代表性的十二部典籍中的“彼”进行了穷尽的调查研究 ,认为“彼”的称代用法和指别用法是其与生俱来的固有功能 ,认为上古汉语第一、第二、第三人称代词是俱全的 ,其第三人称代词是自成一个完整系统的 ,办法是多个成份合作 ,各司其职 ,综合体现。即 :“彼”(主要作主语 ,少量作宾语、定语 )与“夫”(主语 )、“其”(领属性定语 )、“之”(宾语 )等构成了上古汉语第三人称代词的完整系统。

Application of Decision Tree Algorithm in Stamping Process

Various process parameters exert different effects in stamping process. In order to study the relationships among the process parameters of box stamping process, including the blank holder force, friction coefficient, depth of drawbead, offset and length of drawbead, the decision tree algorithm C4.5 was performed to generate the decision tree using the result data of the box stamping simulation. The design and improvement methods of the decision tree were presented. Potential and valuable rules were generated by traversing the decision tree, which plays an instructive role on the practical design. The rules show that the correct combination of blank holder force and setting of drawbead are the dominant contribution for controlling the cracking and wrinkling in box stamping process. In order to validate the rules, the stamping process for box was also performed. The experiment results show good agreement with the generated rules.