1. Institute of Space Science; National Central University; Chung-Li Taiwan
2. Center for Space and Remote Sensing Research; National Central University; Chung-Li Taiwan
3. Institute of Statistics; National Central University; Chung-Li Taiwan
4. Institute of Earthquake Prediction; Beijing University of Technology; Beijing China
5. Graduate School of Science and Technology; Chiba University; Chiba Japan
6. Graduate School of Science; Chiba University; Chiba Japan
7. Plasma and Space Science Center; National Cheng Kung University; Tainan Taiwan