A Study on the Method of Propelling by Analyzing the Form of Bird's Movement. - Nak-Hwe Kim; Jun-Ho Huh (MUE/FutureTech, 2018)

A Method of Propelling with Many Whirlpools Used by Inland Birds. - Nak-Hwe Kim; Jun-Ho Huh (MUE/FutureTech, 2018)

Designing 3D Propeller by Applying Bird's Wing and Making a Test Product. - Nak-Hwe Kim; Jun-Ho Huh (MUE/FutureTech, 2018)

A Study on the Bumps at the Leading Edge of the Wing Used by Hovering Birds. - Nak-Hwe Kim; Jun-Ho Huh (MUE/FutureTech, 2018)