Submitted on: 13 November 2007.
Revised on: 10 December 2007.
Accepted on: 02 January 2008.
Nanotechnology and Precision Engineering
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http://reply.papertrans.cn/3/227/22606/22606-33.png
Submitted on: 12 June 2013.
Revised on: 12 July 2013.
Accepted on: 31 July 2013.
Nanotechnology and Precision Engineering
http://reply.papertrans.cn/3/227/22606/22606-35.png
http://reply.papertrans.cn/3/227/22606/22606-36.png