1. Tsinghua University,Tsinghua Shenzhen International Graduate School,Shenzhen,China
2. Huairou Power Supply Branch,State Grid Beijing Electric Power Co., Ltd.,Beijing,China
3. Loudi Power Supply Branch,State Grid Hunan Electric Power Co., Ltd.,Hunan,China
4. Lhasa Power Supply Branch,State Grid TibetElectric Power Co., Ltd.,Tibet,China