Article History
Received: 3 November 2017
Accepted: 19 June 2018
First Online: 20 July 2018
Authors’ information
: Aminolah Hasanvand is a Ph.D. student at K. N. Toosi University of Technology, Tehran, Iran. Ali Khaleghi is an adjunct professor at K. N. Toosi University of Technology and is a scientist at the Norwegian University of Technology (NTNU), Trondheim, Norway. Ilangko Balasingham is a professor at the Norwegian University of Science and Technology (NTNU), Trondheim, Norway.
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.
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