Submitted on: 17 July 2015.
Revised on: 14 November 2015.
Accepted on: 08 December 2015.
___________________International Journal of Precision Engineering and Manufacturing
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Submitted on: 25 June 2010.
Revised on: 07 October 2010.
Accepted on: 23 October 2010.
___________________International Journal of Precision Engineering and Manufacturing