Submitted on: 07 November 2014.
Revised on: 24 February 2015.
Accepted on: 21 April 2015.
___________________JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
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Submitted on: 04 May 2015.
Revised on: 22 July 2015.
Accepted on: 12 August 2015.
___________________JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
Submitted on: 11 January 2015.
Revised on: 20 March 2015.
Accepted on: 02 May 2015.
___________________JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS