1. Assistant Researcher, Dept. of Engineering for Innovation, Univ. of Salento, via per Monteroni, 73100 Lecce, Italy.
2. Assistant Professor, Dept. of Engineering for Innovation, Univ. of Salento, via per Monteroni, 73100 Lecce, Italy (corresponding author).
3. Full Professor, Dept. of Engineering for Innovation, Univ. of Salento, via per Monteroni, 73100 Lecce, Italy.