About NAKAO WATARU
About セイフティエンジニアリング
About healing
About repair
About plastic
About ceramics
About concrete
About crack initiation
About polymerization catalyst
About silicon carbide
About oxidation
About Bacteria
About mineral (chemistry)
About structural strength
About time course
About reliability (property)
About microorganism
About self healing
About bacteria
About mineral
About Construction materials as seen from use,function and construction
About 自己治癒材料
About 構造健全性