About SETO MASAHIRO
About WATANABE TOMIYA
About NAKAGAWA TOMOKO
About DENDO ISAO
About YAMAMOTO MITSUAKI
About 東北大 大学院
About 東北工業大学情報処理技術研究所紀要
About earth's electromagnetic field
About Geomagnetism in general
About Seismology in general
About 地震
About ELF
About 電磁波