Takashi Takehara

Rock Stress Measurement by means of the Compact Overcoring Method.

Tomoharu Nakayama, Yuzo Obara, Katsuhiko Sugawara, 1994 .

Quantitative Evaluation of Ship Navigator's Mental Workload by Means of Facial Temperature

Koji Murai, Yuji Hayashi, Yoshiji Yano, 2007 .

A Modelling of Slot Cutting with Water Jets and Considerations.

Katsuhiko Sugawara, Takashi Takehara, 1996 .

Recent Reserches on ock Mechanics in Tsukuba. Evaluation of Shut-in Pressure by Fracture Opening Displacement Measurement.

Takashi Narita, Yoshiaki Mizuta, Takashi Takehara, 2000 .