Submitted on: 19 August 2006.
Revised on: 15 September 2006.
Accepted on: 29 September 2006.
___________________Frontiers of Mechanical Engineering
Submitted on: 16 May 1998.
Revised on: 22 June 1998.
Accepted on: 31 July 1998.
___________________Frontiers of Mechanical Engineering
Submitted on: 24 October 2017.
Revised on: 04 February 2018.
Accepted on: 17 February 2018.
___________________Frontiers of Mechanical Engineering
Submitted on: 16 May 2009.
Revised on: 24 June 2009.
Accepted on: 08 August 2009.
___________________Frontiers of Mechanical Engineering
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Submitted on: 30 April 2017.
Revised on: 19 June 2017.
Accepted on: 06 July 2017.
___________________Frontiers of Mechanical Engineering
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