Complex sentence: He is on the Editorial Board of International Journal of Operations and Quantitative Management and Journal of Operations Management and he also acted as the conference president in many industrial engineering conferences that are held in Turkey and worldwide.
Split into simpler sentences: He is on the Editorial Board of International Journal of Operations and Quantitative Management and Journal of Operations Management. Sabuncuoglu also acted as the conference president in many industrial engineering conferences that were held in Turkey and worldwide.