1. Science Institute; University of Iceland; Dunhaga 3 IS-107 Reykjavik Iceland
2. Department of Theoretical Physics, Faculty of Fundamental Problems of Technology; Wrocław University of Technology; 50-370 Wrocław Poland
3. Physics Department, Faculty of Science and Science Education, School of Science; University of Sulaimani; Kurdistan Region Iraq
4. Department of Mechanical Engineering; National United University; Miaoli 36003 Taiwan
5. School of Science and Engineering; Reykjavik University; Menntavegur 1 IS-101 Reykjavik Iceland