1. School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63beon-gil, Busan 46241, South Korea
2. Rolls-Royce Deutschland Ltd. & Co. KG, Eschenweg 11, Blankenfelde-Mahlow 15827, Germany
3. Rolls-Royce plc Whittle House, WH-42- PO Box 3, Filton, Bristol BS34 7QE, UK
4. Rolls-Royce and Pusan National University Technology Centre, Pusan National University, 2, Busandaehak-ro 63beon-gil, Busan 46241, South Korea