Submitted on: 27 April 2005.
Revised on: 10 June 2005.
Accepted on: 15 June 2005.
NULL
Submitted on: 22 September 2015.
Revised on: 15 October 2015.
Accepted on: 20 October 2015.
University Politehnica of Bucharest Scientific Bulletin Series C-Electrical Engineering and Computer Science
Submitted on: 30 May 2002.
Revised on: 24 June 2002.
Accepted on: 17 July 2002.
NULL
Submitted on: 08 August 2019.
Revised on: 19 September 2019.
Accepted on: 27 September 2019.
NULL
http://reply.papertrans.cn/4/302/30177/30177-15.png
Submitted on: 13 June 2014.
Revised on: 29 June 2014.
Accepted on: 27 July 2014.
NULL
http://reply.papertrans.cn/4/302/30177/30177-17.png
http://reply.papertrans.cn/4/302/30177/30177-18.png
http://reply.papertrans.cn/4/302/30177/30177-19.png
Submitted on: 09 January 1998.
Revised on: 09 February 1998.
Accepted on: 06 March 1998.
University Politehnica of Bucharest Scientific Bulletin Series C-Electrical Engineering and Computer Science