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Submitted on: 05 September 2006.
Revised on: 09 October 2006.
Accepted on: 19 October 2006.
Light & Engineering
Submitted on: 20 March 2007.
Revised on: 31 March 2007.
Accepted on: 10 April 2007.
Light & Engineering---ZNACK PUBLISHING HOUSE
Submitted on: 02 September 2016.
Revised on: 11 October 2016.
Accepted on: 25 October 2016.
Light & Engineering---ZNACK PUBLISHING HOUSE
Submitted on: 29 October 2008.
Revised on: 24 November 2008.
Accepted on: 14 December 2008.
Light & Engineering
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Submitted on: 01 November 2007.
Revised on: 11 December 2007.
Accepted on: 07 January 2008.
Light & Engineering
http://reply.papertrans.cn/3/209/20869/20869-18.png
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Submitted on: 02 September 2016.
Revised on: 15 October 2016.
Accepted on: 08 November 2016.
Light & Engineering