Prof. Dr. Necmettin MARAŞLI Erciyes University, Faculty of Sciences, Departmen Of Physics, Turkey Prof. Dr. Radu Sorin Mihai University of Petrosani, Romania Muddasar Khan CAU Kiel, Germany Dr. Hesam Hassan Nejad Oil and Gas Engineering (Research Area: Hydrometallurgy) , Memorial University of Technology, Canada Prof. Dr. Ovidiu Stefan Technical University of Cluj Napoca, Romania Dr. Abdolreza Yazdani-Chamzini Islamic Azad University, Iran Prof. Dr. Catalin Iancu Constantin Brâncusi University of Târgu-Jiu, Romania Dhananjai Verma Geological Survey of India, India Carla Iglesias Department of Natural Resources and Environmental Engineering, University of Vigo, Spain Dr. MANOJ KHANDELWAL Federation University Australia, Australia Dr. Robert Uberman AFM in Kraków, Poland Dr. Xiaoguang Yue Wuhan University of Technology, China Dr. Aydın Rusen Karamanoglu Mehmetbey University, Turkey Dr. Amin Bahrami Centro de Investigación y de Estudios Avanzados del IPN Unidad Saltillo, Mexico Dr. Amit Verma Department of Mining Engineering, Indian School of Mines, India Dr. Arkoprovo Biswas Indian Institute of Science Education and Research Bhopal, India ABERE Dare Victor National Metallurgical Development Centre, Jos, Nigeria