Submitted on: 11 September 2014.
Revised on: 03 January 2015.
Accepted on: 20 January 2015.
___________________Engineering Journal-Thailand---CHULALONGKORN UNIV, FAC ENGINEERING
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Submitted on: 31 January 2003.
Revised on: 01 March 2003.
Accepted on: 29 March 2003.
___________________Engineering Journal-Thailand---CHULALONGKORN UNIV, FAC ENGINEERING
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Submitted on: 01 February 2013.
Revised on: 01 March 2013.
Accepted on: 24 March 2013.
___________________Engineering Journal-Thailand---CHULALONGKORN UNIV, FAC ENGINEERING
Submitted on: 15 February 2014.
Revised on: 12 May 2014.
Accepted on: 03 July 2014.
___________________Engineering Journal-Thailand---CHULALONGKORN UNIV, FAC ENGINEERING