Submitted on: 03 January 1999.
Revised on: 28 January 1999.
Accepted on: 22 February 1999.
___________________EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS
http://reply.papertrans.cn/1/94/9358/9358-22.png
Submitted on: 04 February 1998.
Revised on: 29 May 1998.
Accepted on: 24 June 1998.
___________________EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS
http://reply.papertrans.cn/1/94/9358/9358-24.png
Submitted on: 15 January 1999.
Revised on: 30 March 1999.
Accepted on: 16 April 1999.
___________________EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS
Submitted on: 23 March 2020.
Revised on: 23 April 2020.
Accepted on: 27 May 2020.
___________________EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS
http://reply.papertrans.cn/1/94/9358/9358-27.png
http://reply.papertrans.cn/1/94/9358/9358-28.png
http://reply.papertrans.cn/1/94/9358/9358-29.png
http://reply.papertrans.cn/1/94/9358/9358-30.png