| 基金项目： | This research was supported by the MSIP （Ministry of Science, ICT, and Future Planning）, Korea, under the IT-CRSP （IT Convergence Research Support Program） with No. NIPA-2013-tt0401-13-1001 supervised by the NIPA （National IT Industry Promotion Agency） and by the NRF （National Research Foundation） of Korea Grant funded by the Korean Government with No. NRF-2011- 330-B00076. This research was also supported by the Basic Science Research Program through the NRF funded by the Ministry of Education, Science and Technology of Korea under Grant Nos. 2012R1A1A2007817 and 2013RIA6A3A03027153. |
