Professor Thevamaran presents a technical seminar on the gradient microstructures for synergistic improvement of mechanical properties of metals at the Laboratoire de Mecanique des Solides – CNRS – Ecole Polytechnique, France on the Oct 4, 2018. He also presents a technical conference talk on the asymmetric wave propagation in non-Hermitian metamaterials at the Annual Technical meeting of the Society for Engineering Sciences held in Madrid, Spain (Oct 10-12).