Submitted on: 17 June 2006.
Revised on: 29 July 2006.
Accepted on: 26 August 2006.
TRANSPORTATION
Submitted on: 25 November 2009.
Revised on: 19 December 2009.
Accepted on: 04 January 2010.
TRANSPORTATION---SPRINGER
Submitted on: 25 October 2010.
Revised on: 02 November 2010.
Accepted on: 27 November 2010.
TRANSPORTATION
Submitted on: 07 April 2004.
Revised on: 14 May 2004.
Accepted on: 05 June 2004.
TRANSPORTATION
Submitted on: 27 July 2013.
Revised on: 23 August 2013.
Accepted on: 12 September 2013.
TRANSPORTATION---SPRINGER
http://reply.papertrans.cn/3/299/29840/29840-16.png
http://reply.papertrans.cn/3/299/29840/29840-17.png
Submitted on: 05 December 2001.
Revised on: 14 January 2002.
Accepted on: 25 January 2002.
TRANSPORTATION---SPRINGER
http://reply.papertrans.cn/3/299/29840/29840-19.png
Submitted on: 22 August 2015.
Revised on: 01 September 2015.
Accepted on: 17 September 2015.
TRANSPORTATION---SPRINGER