Dear Prof. Gestsson I am a control engineer student in IUST. Currently I am working on arc furnace adaptive control for my M.S. thesis. I read your paper in IEEE Trans. on control system technology, “System identification of a three-phase submerged-arc ferrosilicon furnace”. I want to use your model for my project. I try to simulate your methods but I have some problem with the model. Would you please send me more information on present control method? Sincerely yours, M. Barkhordary --------------------------------- Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone.