Soil loss, water shortage, flooding, sedimentation and water pollution are the major problems affecting the sustainable ......

以新安江流域横向生态补偿试点作为准自然实验,采用2001~2017年中国安徽和浙江省内县域面板数据,利用双重差分方法(DID)定量研究了......

The request/transmit based upstream bandwidth resource allocation policy of DOCSIS introduces a trouble to the quality o......