Submitted on: 24 February 2003.
Revised on: 28 April 2003.
Accepted on: 17 June 2003.
___________________Journal of Engineering Research
Submitted on: 08 September 2001.
Revised on: 10 December 2001.
Accepted on: 12 January 2002.
___________________Journal of Engineering Research
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Submitted on: 17 February 2002.
Revised on: 19 April 2002.
Accepted on: 01 May 2002.
___________________Journal of Engineering Research
Submitted on: 29 August 2021.
Revised on: 09 October 2021.
Accepted on: 03 November 2021.
___________________Journal of Engineering Research
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