Institution: | 1.Department Materials Technology/Computer Science, Politehnica University of Bucharest, 313 Splaiul Independentei, Bucharest 060042, Romania; E-Mail: ;2.Larmaur, ERL CNRS 6274, University of Rennes 1, Beaulieu Campus, Rennes Cedex 35042, France; E-Mails: (R.E.A.); (G.C.) |