作者机构:[1]Institute of Bio-inspired Structure and Surface Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, P. R. China, [2]College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, P. R. China
相关基金:Acknowledgement The authors thank the financial support from the National Natural Science Foundation of China (Grant No. 50705043, 60535020 and 60910007).