1. Valahia University from Targoviste , Doctoral School of Materials Engineering , Targoviste , Romania
2. National Institute for Research and Development in Chemistry and Petrochemistry – ICECHIM , Bucharest , Romania
3. Academy of Romanian Scientists , Bucharest , Romania
4. Frank Laboratary of Neutron Physics , Joint Institute for Nuclear Research , 141980, Moscow reg., Dubna , Russia
5. Valahia University from Târgoviște, ICSTM , Târgoviște , Romania
6. Valahia University from Targoviste , Materials Engineering and Mechanics Dept , Târgoviște , Romania