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*Tarkhanyan R., Seebeck coefficient of graded porous composites // Roland H. Tarkhanyan, Dimitris G. Niarchos // Journal of Materials *Research. 09/2013; 28(17).*Tarkhanyan R., Colossal reduction in lattice thermal conductivity of inhomogeneously porous semiconducting materials. R.H. Tarkhanyan and D.G. Niarchos, Proceedings of the 9th International Conference on Semiconductor Micro- & Nanoelectronics (ICSMN-2013) ISBN 978-5-8084-1746-5, May 24-26, 2013, Yerevan, Armenia, p.p. 7-10. Roland Tarkhanyan. 9th International Conference on Semiconductor Micro- & Nanoelectronics; 05/2013*Tarkhanyan R., Reduction in lattice thermal conductivity of porous materials due to inhomogeneous porosity // R. H. Tarkhanyan and D.G. Niarchos // International Journal of Thermal Sciences 05/2013; 67։107-112. · 2.47 Impact Factor

*Tarkhanyan R., Seebeck coefficient of graded porous composites J. Mater. Res. 2013, Vol.28, pp2316-2324 // Roland H. Tarkhanyan, and Dimitris G.Niarchos // J. Mater. Res. 01/2013; 28(17)։2316-2324*Tarkhanyan R., Surface magnon polaritons in bianisotropic antiferromagnetic structures // Roland H. or G. Tarkhanyan // 6th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (Metamaterials-2012), St. Petersburg, Russia; 09/2012*Tarkhanyan R., Effect of temperature gradient on high-frequency dielectric permittivity in quantum-well superlattice structures // Roland H. Tarkhanyan, Dimitris G. Niarchos // 06/2012;