1. Dept. of Mining Engineering, Sahand Univ. of Technology, Tabriz 51335-1996, Iran.
2. Professor, Dept. of Mechanical Engineering, Univ. of Maryland, College Park, MD 20742; formerly, Professor, Dept. of Mechanical Engineering, Sahand Univ. of Technology, Tabriz 51335-1996, Iran (corresponding author).
3. Professor, Dept. of Mining Engineering, Sahand Univ. of Technology, Tabriz 51335-1996, Iran.
4. Professor, Dept. of Mining and Metallurgical Engineering, Univ. of Nevada, Reno, NV 89557. ORCID: