1. Department of Physics and Astronomy, Faculty of Environment, Science and Economy, University of Exeter, EX4 4QL, Exeter, UK
2. Faculty of Engineering, Environment and Computing, Coventry University, Priory Street, Coventry CV1 5FB, UK
3. Department of Electrical and Computer Engineering, University of Thessaly, 38221 Volos, Greece
4. Department of Materials, Imperial College London, London SW7 2BP, UK
5. Department of Computer Science, School of Computing and Engineering, University of Huddersfield, HD1 3DH, Huddersfield, UK
6. Centre for Computational Science and Mathematical Modelling, Coventry University, Coventry CV1 2TU, UK