Open access
Published: 06 March 2013
From the Monograph
Edited by Teruaki Nanseki and Min Song
Published: 06 March 2013
© 2013 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.