1. Ph.D. Student, Dept. of Mining Engineering, Karadeniz Technical Univ., 61080, Trabzon, Turkey.
2. Assistant Professor, Dept. of Mining Engineering, Karadeniz Technical Univ., 61080, Trabzon, Turkey (corresponding author).
3. Associate Professor, Dept. of Mining Engineering, Karadeniz Technical Univ., 61080, Trabzon, Turkey.