Contributions to Baosteel Technical Research wanted

Baosteel Technical Research,a quarterly journal,which is issued domestically and abroad,is run and sponsored by Baosteel Group Corporation.Baosteel Technical Research mainly reports the achievements in technological innovation,academic research,new product development and industrial equipment improvement by Baosteel.It will continue to follow up on hot topics and serve the company’s

Basic research and technical improvement on minimally invasive ventriculoperitoneal shunt

Objective To explore a new approach for improving therapeutic effects and minimizing complications of ventriculoperitoneal shunt(VPS) . Methods The lengthof and lower edge of the greater omentum were measured and analyzed in 28 autopsies (16 adults and 12 children) and laparoscopic surgeries. 95 cases of hydrocephalus treated by MIVPS(minimally invasive ventriculoperitoneal shunt) were retrospectively reviewed. The depth and positions

现代三级跳远技术发展的历史回顾与展望

采用文献资料法、数理统计法、逻辑方法等,对本选题进行系统研究。结果显示———世界三级跳远技术发展经历了五个阶段:(1)自由发展阶段;(2)以单足跳为主的技术;(3)平跳型技术;(4)以跳跃为主的技术;(5)以速度为基础的跳跃为主的综合型技术。