It is our pleasure to welcome Kryštof Mráz in our laboratory. He joined our team as a PhD student. His topic of the thesis is ‘New generation of cooling nozzle: variable geometry of nozzle orifice’. The thesis is supervised by dr. Jan Boháček. He will also continue on a numerical simulation of heat transfer in porous oxide layer. Kryštof has successfully completed his master’s degree in Mechanical Engineering.