1. University of Ilorin, Department of Mechanical Engineering, P. M. B. 1515, Ilorin, Nigeria
2. University of Johannesburg, Department of Mechanical Engineering Science, P. O. Box 524, Johannesburg, South Africa
3. University of Ilorin, Department of Materials and Metallurgical Engineering, P. M. B. 1515, Ilorin, Nigeria
4. Nile University of Nigeria, Department of Mechanical Engineering, 900001, Nigeria
5. Landmark University, Department of Mechanical Engineering, 252201, Nigeria
6. University of Northumbria, Department of Mechanical and Construction Engineering, Newcastle, NE18ST, United Kingdom