The effects of gradient structure on the microstructure and properties of coated cemented carbides were researched with ......

Due to the mobility of Stations (STAs) and time-variability of wireless channels in an Extended Service Set (ESS) of Wir......

通过对550 kV/63kA双断口断路器和363 kV/50 kA单断口断路器技术加以改进,利用计算机解析技术,提高了额定SF6气体压力和分闸速度,......

目的了解某医院实施临床路径对短暂性脑缺血发作（transient ischemic attack,TIA）患者药费、检查费和住院日的影响。方法使用间断时......