| Dr. B. Batagelij |
University of Ljubljana, Slovenia |
| Dr. R. C. Kizilirmak |
Nazarbayev Univ., Kazakhstan |
| Dr. M. Hulea |
G. Asachi Tech. Univ. of Iasi, Romania |
| Dr. G. Gardasevic |
Univ. of Banja Luka, Bosnia and Herzegovina |
| Dr. D. N Nguyen |
Czech Tech. Univ. Prague, Czech Rep. |
| Dr. T. The Son |
Vietnam-Korea Friendship ITC, Vietnam |
| Dr. E. Soleimani-Nasab |
Grad. Univ. of Adv. Tech., Kerman, Iran |
| Dr. Y. S Kavian |
S. Chamran Univ., Iran |
| Dr. F. Sadat Tabataba |
Isfahan Univ. of Tech., Iran |
| Dr. E. Mostafapour |
Urmia University, Iran |
| Dr. S. Golmohammadi |
University of Tabriz, Iran |
| Dr. M. Mohassel Feghhi |
University of Tabriz, Iran |
| Dr. M. H. Yavari |
Shahed University, Iran |
| Dr. H. Vahed |
University of Tabriz, Iran |
| Dr. S. Hosseinzadeh |
Azarbaijan S. Madani Univ., Iran |
| Dr. Z. H. Firouzeh |
Isfahan Univ. of Technology, Iran |
| Dr. H. Beiranvand |
Amirkabir Univ. of Technology, Iran |
| Dr. H. Baghban |
University of Tabriz, Iran |
| Dr. M. Farhang |
Shiraz University, Iran |
| Dr. H. Soofi |
University of Tabriz, Iran |
| Prof A. Asgari |
University of Tabriz, Iran |