Open access
Published: February 24th, 2012
DOI: 10.5772/39304
From the Monograph
Edited by Li-Fang Chou and Liang-Feng Lin
Published: February 24th, 2012
© 2012 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.