Submitted on: 03 May 2000.
Revised on: 03 June 2000.
Accepted on: 19 June 2000.
___________________Journal of the Korean Society for Aeronautical and Space Sciences
Submitted on: 07 March 2007.
Revised on: 31 May 2007.
Accepted on: 02 July 2007.
___________________Journal of the Korean Society for Aeronautical and Space Sciences
http://reply.papertrans.cn/2/198/19788/19788-13.png
http://reply.papertrans.cn/2/198/19788/19788-14.png
Submitted on: 22 November 2017.
Revised on: 29 January 2018.
Accepted on: 13 March 2018.
___________________Journal of the Korean Society for Aeronautical and Space Sciences
Submitted on: 23 February 2019.
Revised on: 18 March 2019.
Accepted on: 31 March 2019.
___________________Journal of the Korean Society for Aeronautical and Space Sciences
Submitted on: 05 October 2004.
Revised on: 30 January 2005.
Accepted on: 11 March 2005.
___________________Journal of the Korean Society for Aeronautical and Space Sciences
http://reply.papertrans.cn/2/198/19788/19788-18.png
http://reply.papertrans.cn/2/198/19788/19788-19.png
http://reply.papertrans.cn/2/198/19788/19788-20.png