To evaluate the effect of pulse parameters on the formation of electrodeposits in concrete cracks, five different types ......

The regulation of memory effect that the residual charges generated during and after discharge act on the initiation and......

【摘要】 目的 探讨经颅多普勒(TCD)对脑血管疾病的诊断价值。方法 对700例体检对象脑血管的TCD血流频谱和血流参数进行分析。结果......