1. College of Electronics and Information Engineering, Lanzhou Institute of TechnologyNo. 1, Gongjiaping East Road, Qilihe districtLanzhou City730050People's Republic of China
2. Lanzhou Branch of Changzheng Chemical Engineering Co., Limited.No. 1685, Lanzhou Aerospace Building, Yanbei Street, Chengguan DistrictLanzhou City730010People's Republic of China