Nobumasa Shirai

Wheeled Robots to Overcome Ground Unevenness in Construction Areas

Shuuji Kajita, Osamu Matsumoto, Kazuo Tani, 1991 .

Control of an Active Suspension System for a Wheeled Vehicle

K. Tani, Nobumasa Shirai, Seiichi Usui, 1989 .

Electric Signals Accompanying Fracture of Granite

Yuji Enomoto, Nobumasa Shirai, Satoshi Tanaka, 2003 .

Electromagnetic signals associated with stick–slip of quartz-free rocks

Nobumasa Shirai, Akito Tsutsumi, A. Tsutsumi, 2008 .