塑料排水板加固软土地基施工工艺改进的工程实践

探讨了塑料排水板加固软土地基施工工艺的改进方法。其方法在工程实践中降低了成本达到了图纸设计的要求。     

植物生长调节物质对山核桃嫁接的效用

采用3种植物生长调节物质（IAA、6－BA、GA1，3）以3种浓度对山核桃3类接穗（一年生枝、生长枝、结果枝）的嫁接进行正交田间试验（L273^3)，经方差分析表明：试验的3种物质中，IAA具显作用，F值分别为2．91、2．94、3．49，都超过了F0．10临界值；6－BA没有效果，赤霉素在结果枝的嫁接中与生长素交互起显作用。因此，在山核桃嫁接时，外源IAA对山核桃嫁接起主导作用，不同时间的处理，激素对嫁接的效果不同。     

转基因植物研究进展

介绍了转基因植物的发展历史,已获得转基因植物的物种,转基因技术及转基因植物在生产上的应用.     

Myosins from plants

Molecular cloning and sequence analysis of myosin genes from Arabidopsis thaliana and electron microscopic observation of a myosin from characean alga have revealed that overall structure of plant unconventional myosins is similar to that of the class V myosins. These plant unconventional myosins have two heads, a coiled-coil tail of varied length and a globular tail piece at the end. The tail piece is probably a site for membrane interaction. Characean myosin is of special interest because it can translocate actin filaments at a velocity several times faster than muscle myosin, which must have evolved to support the quick movement of animals in the struggle for their lives.     

Dynamics of proteins in Golgi membranes: comparisons between mammalian and plant cells highlighted by photobleaching techniques

In less than a decade the green fluorescent protein (GFP) has become one of the most popular tools for cell biologists for the study of dynamic processes in vivo. GFP has revolutionised the scientific approach for the study of vital organelles, such as the Golgi apparatus. As Golgi proteins can be tagged with GFP, in most cases without altering their targeting and function, it is a great substitute to conventional dyes used in the past to highlight this compartment. In this review, we cover the application of GFP and its spectral derivatives in the study of Golgi dynamics in mammalian and plant cells. In particular, we focus on the technique of selective photobleaching known as fluorescence recovery after photobleaching, which has successfully shed light on essential differences in the biology of the Golgi apparatus in mammalian and plant cells.     

植物激活剂苯并噻二唑(BTH)

概述了植物激活剂的概念和基本特点,苯并噻二唑(BTH)完全满足这些基本特征,是开发最成功的典型植物激活剂,较为详细的介绍了BTH的基本特性、作用机制、使用方法、应用范围和化学合成方法及其环境行为,并分析了该植物激活剂的应用前景和使用中可能存在的问题．     

开滦电厂厂用电切换存在的问题及对策

稳定可靠的厂用电源对于电厂的安全稳定运行极其重要。介绍了厂用电切换方式,针对开滦电厂厂用电切换实际,探讨了在可行范围内解决其成功率不高的问题。     

植物细胞壁中富含甘氨酸的蛋白质

在植物的某些组织中存在富含甘氨酸的蛋白质，根据ＧＲＰｓ中甘氨酸的含量和氨基酸的种类、数目及排列顺序的差异，推测植物的ＧＲＰｓ存在３种类型，这些ＧＲＰｓ在植物的生长发育及植物防御过程中起重要作用，已有大量的ＧＲＰ基因被分离鉴定，并对一些ＧＲＰ基因的启动子进行了分析，ＧＲＰｓ基因的表达受植物发育的调节，具有组织或器官特异性，很多ＧＲＰ基因的表达还受环境因素的影响。     

高压限流熔断器组合保护装置应用分析——以温州珊溪水利枢纽珊溪电厂为例

以温州珊溪水利枢纽珊溪电厂为例,介绍了高压限流熔断器组合保护装置在电厂运行中存在的问题,对其改造方案进行了分析,阐述了系统采用FURV的优越性以及FURV的参数设计与结构。     

清溪水电站施工组织与开挖弃碴利用

清溪水电站是贵州省芙蓉江流域梯级开发的重点工程,阐述该工程施工组织设计.结合工程区地形条件,合理利用工程弃碴,变工程永久淹没占地为可恢复耕地,节约了工程占地补偿投资.