Submitted on: 11 August 2000.
Revised on: 04 November 2000.
Accepted on: 22 December 2000.
___________________DESALINATION---ELSEVIER
Submitted on: 27 September 2007.
Revised on: 19 January 2008.
Accepted on: 11 March 2008.
___________________DESALINATION---ELSEVIER
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Submitted on: 12 August 2007.
Revised on: 04 December 2007.
Accepted on: 22 December 2007.
___________________DESALINATION---ELSEVIER
http://reply.papertrans.cn/1/74/7301/7301-25.png
http://reply.papertrans.cn/1/74/7301/7301-26.png
http://reply.papertrans.cn/1/74/7301/7301-27.png
Submitted on: 26 July 2014.
Revised on: 06 November 2014.
Accepted on: 20 November 2014.
___________________DESALINATION---ELSEVIER
http://reply.papertrans.cn/1/74/7301/7301-29.png
Submitted on: 18 August 2003.
Revised on: 02 November 2003.
Accepted on: 27 December 2003.
___________________DESALINATION---ELSEVIER