一条精神的大河——读蒋登科《中国新诗的精神历程》

中国新诗在表象上看很复杂甚至很驳杂,难有脉络可循,但从精神建设的角度梳理,不同的诗人、诗歌现象所奉献给精神文化的内涵和影响是有差别的。蒋登科教授主编的《中国新诗的精神历程》一书,通过对新诗精神建设历程的梳理,从精神文化建设的角度对新诗的成就与不足进行了较为全面的考察,对不同诗人、诗歌现象的历史地位进行了实事求是的评价,是一部值得推荐的诗学著作。     

微机械电子系统安全器件中的密码机械固化与校验方法

1 Introduction It is well known that the key technology of MEMS(micro-electromechanical systems) security device isthe code mechanical solidification and discri mination.Various mechanisms can be used to i mplement thistechnology,e.g.,linear maze[1,2],peripheral maze[3 ,4],pawl/ratchet wheel and counter meshing gears (CMG)mechanism[5-8].Compared to other mechanisms ,CMGhas many virtues such as si mple structure , i mplicitcode ,and fewer dynamic and frictional problems sincetwo groups of C…