Open access
Submitted: 12 November 2014 Published: 11 March 2015
DOI: 10.5772/59988
From the Edited Volume
Edited by Shuanggen Jin
Submitted: 12 November 2014 Published: 11 March 2015
© 2015 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution 3.0 License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.