**Author details**

Rossitah Selamat1 , Ismail Abustan1 \*, Mohd Rizal Arshad<sup>2</sup> and Nurul Hana Mokhtar Kamal1

1 Faculty of Civil Engineering, Universiti Sains Malaysia, Pulau Pinang, Malaysia

2 Faculty of Electrical Engineering, Universiti Sains Malaysia, Pulau Pinang, Malaysia

\*Address all correspondence to: ceismail@usm.my

© 2019 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.
