Hikaru OTSUKA, Akihiro KAWASAKI, Hiroshi TOKUTAKE. In-flight Rotor Blade Tip Damage Detection of Small Multirotor using Ultrasonic Sensors. TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES. 2024. 67. 4. 203-211
Hikaru Otsuka, Masayoshi Kohno, Keiji Nagatani. Fountain Flow Visualization in Quadrotor Wake Decreasing Rotor Thrust In-Ground Effect. Journal of Aircraft. 2024. 61. 3. 761-773
Justin Winslow, Hikaru Otsuka, Bharath Govindarajan, Inderjit Chopra. Basic Understanding of Airfoil Characteristics at Low Reynolds Numbers (104-105). Journal of Aircraft. 2018. 55. 3. 1050-1061
Hikaru Otsuka, Daisuke Sasaki, Keiji Nagatani. Reduction of the head-up pitching moment of small quad-rotor unmanned aerial vehicles in uniform flow. International Journal of Micro Air Vehicles. 2018. 10. 1. 85-105