The mechanisms of AlGaN/GaN HEMT's off-state breakdown are investigated. Both the source- and gate-injection induced impact ionizations are identified with the former leading to premature three-terminal breakdown. A 35% improvement of the breakdown voltage could be achieved in an enhanced back barrier HEMT by implanting fluorine ions under the channel region and effectively block the source injection through the buffer layer.
Wang Y, Sun J, Ma S, Gao W. Theoretic Analysis of Inter Frame Dependency in Video Coding, in Advances in Multimedia Information Processing - PCM 2008, 9th Pacific Rim Conference on Multimedia, Tainan, Taiwan, December 9-13, 2008. Proceedings.; 2008:935–939. 访问链接
Gao W, Ma S, Reader C. An End-to-End Application System of AVS: AVS-IPTV in China, in Advances in Multimedia Information Processing - PCM 2007, 8th Pacific Rim Conference on Multimedia, Hong Kong, China, December 11-14, 2007, Proceedings.; 2007:50–57. 访问链接
Yang J, Ma H, Song W, Cui J, Zhou C. Crawling the edonkey network, in Grid and Cooperative Computing Workshops, 2006. GCCW'06. Fifth International Conference on. IEEE; 2006:133–136.
Zhang Q, Dai Y, Ma S, Kuo JC-C. Decoder-Friendly Subpel MV Selection for H.264/AVC Video Encoding, in Second International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2006), Pasadena, California, USA, December 18-20, 2006, Proceedings.; 2006:655–658. 访问链接
Hu Y, Li Q, Ma S, Kuo JC-C. Fast H.264/AVC Inter-Mode Decision with RDC Optimization, in Second International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2006), Pasadena, California, USA, December 18-20, 2006, Proceedings.; 2006:511–516. 访问链接