Open access
Submitted: 07 March 2012 Published: 09 May 2013
DOI: 10.5772/50896
From the Edited Volume
Edited by Satoru Suzuki
Submitted: 07 March 2012 Published: 09 May 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.