**Author details**

Jean-Pierre Barriot<sup>1</sup> \* and Peng Feng<sup>2</sup>


\*Address all correspondence to: jean-pierre.barriot@upf.pf

© 2021 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
