“…Because of the mentioned difficulties that are faced when smelting gold slime, we have decided to search for a new model to predict gold content in the slag in addition to the traditional nonlinear regression. On the other hand, the neural network has proven to be a powerful tool in many areas including industrial processes (Schlang, Lang, Poppe, Runkler, & Weinzierl, 2001), prediction of materials properties such as steel (Bahrami, Mousavi Anijdan, & Ekrami, 2005;Capdevila, Garcia-Mateo, Caballero, & Garcl´a de Andre's, 2006;Guo & Sha, 2004). In addition, there are many other reports that the neural network approach has used in material science-based research (Sha & Edwards, 2007).…”