Supported by National Natural Science Foundations of China (61325016, 61273084, 61233014), Natural Science Foundation for Distinguished Young Scholar of Shandong Province of China (JQ200919), and the Independent Innovation Foundation of Shan- dong University (2012JC014)
Supported by National Natural Science Foundation of China (60774011, 60674024), Natural Science Foundation of Zhejiang Province (Y105141), and Natural Science Foundation of Fujian Province (2008J0026)