About NISHIURA YASUMASA
About 北大 電子科研
About TERAMOTO TAKASHI
About 千歳科技大 総合光科学
About desertification
About semiarid region
About vegetation
About conservation law
About time evolution
About singular point
About forecast
About bifurcation
About イースター島
About バスタブモデル
About Environmental problems
About 現象
About 方程式
About 思考
About 砂漠化
About 問題