Fisnik Aliaj is an Associate Professor of Physics at the Department of Physics of the University of Prishtina (UP), Kosovo. Fisnik Aliaj has a Ph.D. in Materials Science (Thin films and hard coatings). Fisnik Aliaj’s research interests include Thin Films and Hard Coatings, Materials Modeling with FEM (Finite Element Modeling), Materials Characterization Techniques, and Thermophysical Properties of non-electrolyte Liquid Mixtures