1. Department of Process Technology, SINTEF Industry , S. P. Andersens Veg 15, N-7494 , Trondheim , Norway
2. Teknopar , Ankara , Turkey
3. University of Oulu , Oulu , Finland
4. Cybernetica , Oslo , Norway
5. Cybernetica , Trondheim , Norway
6. Department of Process Technology, SINTEF Industry , Porsgrunn , Norway
7. Department of Process Technology, SINTEF Industry , Trondheim , Norway