高师基础有机化学实践教学的探讨

本文从“结合专业，设计课题”加强双基，注重应用“两方面对加强高师基础有机化学实践教学进行了探讨，旨在培养学生的综合能力。     

川西震后重建初期的工作重心浅析

文章从地震灾损特点、受灾居民关注重点和地方政府关注重点3个方面为切入点,在寻找如何进行震后重建起步的方法上面提出了自己的看法.     

期刊有序化管理意见

期刊是主要出版物类型,在图书馆的收藏中占有重要的地位.如何科学、合理地管理期刊,是图书馆管理工作中需要解决的重大课题.文章就建立三级期刊结构谈了几点意见.     

微机在机械故障诊断方面的应用

本文简要地论述了利用微机对机械设备故障进行在线监测诊断的重要性，设计了AppleⅡ微机在线故障诊断系统，并以CW6140万能车床主轴箱为例给出主轴箱故障诊断结果。     

焦作市城区雨污合流问题的成因及对策探讨

探讨了焦作市城区雨污合流状况形成的原因,提出了一些可行的解决办法,以实现焦作市政府制定的污水处理率目标,对同类城市的合流排水改造有一定的借鉴作用.     

匀加速直线运动动态黑洞的3类特征曲面

讨论了匀加速直线运动态黑洞的３种特征曲面－事件视界，表观视界和类时极限面的一些性质。     

纯铝(L_2)高温本构方程的研究

有限元数值模拟技术应用于金属材料的加工过程，给深入研究金属成形过程提供了有力的理论工具，但其精确程度与材料本构方程的精确描述有极大的关系．材料的本构方程是描述材料成形信息的数学模型，它反映了材料的流动应力与变形程度、变形速率、变形温度的关系．因此，通过实验获取材料的本构方程是有限元数值模拟首要解决的问题．本文针对刚粘塑性材料提出了本构方程的数学模型，并在实验的基础上给出了纯铝（Ｌ２）材料的本构方程的具体形式     

Morphological variability and genetic diversity in five species of Skeletonema （Bacillariophyta）

Twelve strains of Skeletonema from Chinese coastal waters and another strain from the West Sea of Korea were examined using light microscopy （LM）, scanning and transmission electron microscopy （SEM, TEM）, and small subunit （SSU） rDNA sequence analysis. We identified four species of Skeletonema： S. marinoi Sarno et Zingone, S. subsalsum （A.Cleve） Bethge, S. dohrnii Sarno et Kooistra, S. trop- icum Cleve, as well as a Skeletonerna-like species. These are the first records of S. rnarinoi, S. dohrnii and S. subsalsurn in China. The Skeletonema-like species, MMDLS067, was isolated from the estuary of the Changjiang River. The morphologic and phylogenetic characteristics of this species are not correspond to those of any previously published Skeletonerna species. The intercalary fultoportula pro- cesses （IFPPs） has long open tubes, and the intercalary rimoportula process （IRP） is short and located inside the rim of the IFPPs. Phylogenetic analysis revealed that MMDL5630 clustered with S. tropicurn in the NJ and MP trees, but its IRPs differed from those of previously described specimens of S. tropicum. The IRP is partially open, with an elongated opening at the base of the tube, and is longer than the IFPPs. Some specimens of S. marinoi and S. dohrnii also have longer tubular IRPs than the IFPPs. Compared to pre- viously described specimens of S. rnar＆oi and S. dohrnii, these two specimens we identified have shorter IRPs. Our results reflect the ambiguity and diversity of Skeletonema taxonomy. They are also significant for the future identification and management of red tides caused by Skeletonerna in the seas around China.