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Submitted on: 25 April 2017.
Revised on: 18 August 2017.
Accepted on: 14 October 2017.
___________________ENGINEERING COMPUTATIONS---EMERALD GROUP PUBLISHING LTD
Submitted on: 10 October 2015.
Revised on: 19 November 2015.
Accepted on: 24 December 2015.
___________________ENGINEERING COMPUTATIONS---EMERALD GROUP PUBLISHING LTD
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http://reply.papertrans.cn/1/85/8449/8449-25.png
Submitted on: 30 April 1999.
Revised on: 13 August 1999.
Accepted on: 22 September 1999.
___________________ENGINEERING COMPUTATIONS---EMERALD GROUP PUBLISHING LTD
http://reply.papertrans.cn/1/85/8449/8449-27.png
Submitted on: 19 January 2004.
Revised on: 16 May 2004.
Accepted on: 13 June 2004.
___________________ENGINEERING COMPUTATIONS---EMERALD GROUP PUBLISHING LTD
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Submitted on: 20 June 2011.
Revised on: 30 September 2011.
Accepted on: 27 November 2011.
___________________ENGINEERING COMPUTATIONS---EMERALD GROUP PUBLISHING LTD