GENEVA, Dec. 28 -- TSINGHUA UNIVERSITY (Qinghua ParkHaidian District, Beijing 100084), 清华大学 (中国北京市海淀区清华园), CSG ELECTRIC POWER RESEARCH INSTITUTE (3rd, 4th, and 5th Floors of Building J1 and 3rd Floor of Building J3, No. 11 Kexiang Road, Science City, Luogang DistrictGuangzhou, Guangdong 510700), 南方电网科学研究院有限责任公司 (中国广东省广州市萝岗区科学城科翔路11号J1栋3、4、5楼及J3栋3楼) filed a patent...