Submitted on: 13 December 2001.
Revised on: 10 January 2002.
Accepted on: 25 January 2002.
___________________Advanced Energy and Sustainability Research
Submitted on: 17 March 2019.
Revised on: 02 June 2019.
Accepted on: 21 July 2019.
___________________Advanced Energy and Sustainability Research
Submitted on: 06 May 2007.
Revised on: 22 July 2007.
Accepted on: 04 August 2007.
___________________Advanced Energy and Sustainability Research
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Submitted on: 14 June 2014.
Revised on: 17 September 2014.
Accepted on: 15 November 2014.
___________________Advanced Energy and Sustainability Research
Submitted on: 01 July 1998.
Revised on: 05 October 1998.
Accepted on: 01 November 1998.
___________________Advanced Energy and Sustainability Research