Submitted on: 11 June 2002.
Revised on: 02 July 2002.
Accepted on: 09 August 2002.
___________________JOURNAL OF ENGINEERING MATHEMATICS
http://reply.papertrans.cn/2/166/16587/16587-32.png
Submitted on: 13 February 2008.
Revised on: 18 March 2008.
Accepted on: 05 May 2008.
___________________JOURNAL OF ENGINEERING MATHEMATICS
Submitted on: 26 March 2008.
Revised on: 12 June 2008.
Accepted on: 05 August 2008.
___________________JOURNAL OF ENGINEERING MATHEMATICS
http://reply.papertrans.cn/2/166/16587/16587-35.png
Submitted on: 04 August 2018.
Revised on: 31 October 2018.
Accepted on: 18 December 2018.
___________________JOURNAL OF ENGINEERING MATHEMATICS