Tsinghua University, Tongji University, Jilin University, Xi Jiaotong University, Beijing Institute of Technology, Chongqing University, Hunan University, Shanghai Jiaotong University, Southwest Jiaotong University, Harbin Institute of Technology, Huazhong University of Science and Technology, Zhejiang University, Central South University, Harbin Engineering University, Yanshan University, Wuhan University of Technology, Hefei University of Technology, Northwestern Polytechnical University, Chang 'an University.