About AKAHIRA MASAFUMI
About 筑波大 数理物質系
About 日本物理学会誌
About earthquake disaster
About large earthquake
About statistics(science)
About t-distribution
About statistical estimation
About data analysis
About chi-square test
About Great East Japan Earthquake
About Great East Japan Earthquake
About Seismic activity
About Statistics
About 歴史
About 事象
About 統計
About 推測
About 進展