4Th International Conference on Electromagnetic Field Problems and Applications (Icef 2000), Date: SEP 18-20, 2000, Location: TIANJIN, PEOPLES R CHINA, Sponsors: China Electrotech Soc, Chinese Soc Elect Engn, Natl Nat Sci Fdn China, Sci & Technol Dept of Hebei Province, Hebei Province Nat Sci Fdn, Baoding Tianwei Grp Co Ltd, China Inst Atom Energy, Tianjin Elect Power Co, Shenyang Transformer Co Ltd, Harbin Inst Large Elect Machines, China Dongfang Elect Corp, Shenyang Univ Technol, Huazhong Univ Sci & Technol, Hubei Province Electrotech Soc, N China Elect Power Univ, Zhejiang Univ, Tsinghua Univ, Hebei Univ Technol, Hebei Univ Technol, Sch Elect Engn & Informat, COMPUMAG Liaison Off China