http://reply.papertrans.cn/2/182/18199/18199-21.png
http://reply.papertrans.cn/2/182/18199/18199-22.png
http://reply.papertrans.cn/2/182/18199/18199-23.png
Submitted on: 15 July 2012.
Revised on: 23 October 2012.
Accepted on: 20 November 2012.
___________________Journal of Nanostructures---UNIV KASHAN PRESS
http://reply.papertrans.cn/2/182/18199/18199-25.png
Submitted on: 28 August 2003.
Revised on: 21 September 2003.
Accepted on: 05 October 2003.
___________________Journal of Nanostructures---UNIV KASHAN PRESS
http://reply.papertrans.cn/2/182/18199/18199-27.png
http://reply.papertrans.cn/2/182/18199/18199-28.png
http://reply.papertrans.cn/2/182/18199/18199-29.png
http://reply.papertrans.cn/2/182/18199/18199-30.png