Bradley Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, Virginia 24061, USA

Physics Department, University of Namur, Rue de Bruxelles 61, B-5000 Namur, Belgium and Physics & Technology Department, Higher Pedagogical Institute, Bukavu, Democratic Republic of Congo

Department of Energy Technology, Aalborg University, Aalborg 9220, Denmark

School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164-2920, USA

Faculty of Science, Charles Sturt University, Wagga Wagga, NSW 2650, Australia

Department of Mechanics of Materials and Constructions, Vrije Universiteit Brussel, Pleinlaan 2, Brussels 1050, Belgium

Department of Materials Science and Engineering, North Carolina State University, Raleigh, USA

Stevens Institute of Technology, Department of Civil, Environmental, and Ocean Engineering, Hoboken, New Jersey, United States

Section of Condensed Matter Physics, Department of Physics, National and Kapodistrian University of Athens, Panepistimiopolis, Zografos 15784, Greece.

Intelligent Systems Group, Universidad Politécnica de Madrid, 28040 Madrid, Spain

Department of Neuroscience, Reproductive and Odontostomatological Sciences University of Naples "Federico II", Naples, Italy