1. Mechanical Engineering, Mechatronics and Robotics Department, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania
2. Technical Sciences Academy of Romania, 26 Dacia Blvd., 030167 Bucharest, Romania
3. Department of Pedotechnics, Faculty of Agriculture Iasi, University of Life Sciences, 700490 Iasi, Romania