1. 1 Hungarian University of Agriculture and Life Sciences, Szent Istvan Campus, Doctoral School of Mechanical Engineering , Gödöllő , Hungary
2. 2 Institut Teknologi Nasional Bandung, Faculty of Industrial Technology, Department of Mechanical Engineering , Bandung , Indonesia
3. 3 Hungarian University of Agriculture and Life Sciences, Szent Istvan Campus, Institute of Technology , Gödöllő , Hungary