梅蓄“一管四机”首次国产化水操作系统大型球阀概述

因项目的首台机与4号机发电时间相比合同规定时间需要分别提前6个月和12个月,且球阀开关动作由水操作接力器完成,而该技术在国内是首次国产化。因此,项目团队采取极力打造项目执行工作的无缝衔接、高效管理方法,协调所有资源,激励研发团队针对前述需求进行特色设计以期满足用户所需;并对设计方案采用专业仿真计算,优化设计方案;对关键核心部件进行精密制造后,在工厂静态试验验证时所有密封部位均为“零泄漏”;为了球阀在电站所有工况下都能正常运行,研发团队对水操作系统做了大量细致的研发工作与试验;优化了现场安装调试管理流程,提高了效率,为各台机组提前发电创造了有利的条件。

Heat shock protein 70 expression in relation to apoptosis in primary bladder transitional cell carcinoma

Bladder carcinoma is the most common tumor in the urinary system. In 1996, a sampleinvestigation showed that bladder carcinoma, in which more than 90% was mainly primary bladder transitional cell carcinoma （BTCC）, was one of the ten highest mortality malignant tumors in China. Bladder carcinoma represented 2% of all malignant tumors and has the fifth most common malignancy in men in Europe and North America.