1. Physical Faculty, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
2. Admiral Makarov National University of Shipbuilding, Mykolayiv, Ukraine
3. V.O. Sykhomlynsky National University of Mykolayiv, Mykolayiv, Ukraine
4. Institute of Engineering Thermophysics of NAS of Ukraine, Kyiv, Ukraine
5. State Research Institute of Building Constructions Kyiv, Kyiv, Ukraine