"J. Tsubai,E. Akiyama,S. Ujihashi","The Impact Failure Prediction of FRP Pressure Vessels Using Finite Element Method","17th International Conference on Composite Materials","17th International Conference on Composite Materials",," CD-ROM",,,2009,July "Masato Ito,Junya Tsubai,Sadayuki Ujihashi,Hiroshi Nagao,Daisuke Kogawa","The moment lever arm is a predictor of the pronation in running","the ?Footwear Biomechanics Symposium","Proceedings of the ?Footwear Biomechanics Symposium","Taylor&Francis","Vol. 1","No. S1","pp. 91-93",2009,June "秋山絵里,椿井惇也,宇治橋貞幸,稲木秀介,小林信夫","有限要素法によるFRP製圧力容器の衝撃破壊予測","JCOM-38 材料・構造の複合化と機能化に関するシンポジウム","日本材料学会JCOM-38講演論文集 材料・構造の複合化と機能化に関するシンポジウム","日本材料学会",,,"pp. 284-287",2009,Mar. "椿井惇也,宇治橋貞幸,持丸正明,古川大輔,長尾 裕史","ランニングシューズの安定性とその評価指標の抽出","日本機械学会 ジョイント・シンポジウム2008","日本機械学会講演論文集(ジョイント・シンポジウム2008)","日本機械学会",," [08-23]","pp. 325-330",2008,Nov.