Submitted on: 25 June 2003.
Revised on: 22 September 2003.
Accepted on: 12 November 2003.
___________________International Journal of Mechanical and Materials Engineering
Submitted on: 03 December 2001.
Revised on: 14 January 2002.
Accepted on: 15 February 2002.
___________________International Journal of Mechanical and Materials Engineering
http://reply.papertrans.cn/2/138/13730/13730-23.png
http://reply.papertrans.cn/2/138/13730/13730-24.png
http://reply.papertrans.cn/2/138/13730/13730-25.png
Submitted on: 20 March 2003.
Revised on: 11 July 2003.
Accepted on: 07 August 2003.
___________________International Journal of Mechanical and Materials Engineering
http://reply.papertrans.cn/2/138/13730/13730-27.png
http://reply.papertrans.cn/2/138/13730/13730-28.png
Submitted on: 13 November 1999.
Revised on: 30 January 2000.
Accepted on: 19 March 2000.
___________________International Journal of Mechanical and Materials Engineering
Submitted on: 27 May 2009.
Revised on: 03 August 2009.
Accepted on: 22 August 2009.
___________________International Journal of Mechanical and Materials Engineering