First Author:   Claudiu T Albulescu Politehnica University of Timisoara claudiual@yahoo.com   claudiual@yahoo.com Timisoara, 300006, Romania       https://sites.google.com/site/claudiutiberiualbulescu/ Second Author: Claudiu T Albulescu Politehnica University of Timisoara claudiual@yahoo.com   Timisoara, 30006, Romania       www.infer2014.ecreb.ro