The Spring World Congress on Engineering and Technology (SCET), to be held on May.26-29, 2012, in Xi'an China, is composed of 15 conferences on the frontier topics in the engineering and technological subjects. It dedicates facilitating to facilitate the global development of engineering and technology and exploring ways in which universal scientific research can be delivered with any aid and contribute to the development of the country with its own power. Publication IEEE Catalog Number: CFP1240R-CDR ISBN: 978-1-4577-1963-9 The SCET conference proceedings will be published by IEEE, and the accepted papers will be indexed by Ei Compendex. Selected outstanding papers from SCET2012 will be considered for publishing in relevant journals cited