Coal mine methane is not only a greenhouse gas but also a wasted energy resource if not utilised.Approximately 70% of al......

　　The rapid developments in fabrication of nanometer-scale fluidic devices have provided a variety of new strategies f......

通过分析分级设备中分级力场方向和介质流体流动方向，提出了借流分级和逆流分级的概念，并在详细讨论这两种不同分级形式各自特点的基......