1. Director, Iran Maglev Technology (IMT), No. 8, Alley 14, South Pirouzan St., Hormozan Ave., Phase 2, Shahrak Gharb Sq., Tehran, Iran; formerly, School of Railway Engineering, Iran Univ. of Science and Technology (IUST) (corresponding author).
2. Associate Professor, School of Civil Engineering, Iran Univ. of Science and Technology (IUST), Narmak, Tehran, Iran 16846-13114.