1. LGP-INP-ENIT, Université de Toulouse, Tarbes, France. E-mail: mkarray@enit.fr
2. Department of Engineering Technology, Texas State University, TX, U.S.A.. E-mail: ameri@txstate.edu
3. Faculty of Engineering and Mathematical Sciences, University of Western Australia, Australia. E-mail: melinda.hodkiewicz@uwa.edu.au
4. CALMIP, Université de Toulouse-CNRS-INPT-INSA-UPS, UMS 3667, France. E-mail: tlouge@inp-toulouse.fr