1. Department of Industrial and Production Engineering, B. V. B. College of Engineering and Technology, Hubli 580 031, Karnataka, India,
2. Department of Electrical and Electronics Engineering, B. V. B. College of Engineering and Technology, Hubli 580 031, Karnataka, India
3. Polytechnic School of Almadén, University of Castilla-La Mancha Plaza Manuel Meca, 1, 13412 Almaden, Spain
4. Department of Mechanical Engineering, University of Aveiro Campus Santiago, 3810-193 Aveiro, Portugal