https://sciprofiles.com/profile/2722670 My name is Marian Ledvoň. In 2023 I completed my PhD studies in Mechanical Engineering and Control of Machine and Processes at the Technical University of Ostrava in the Czech Republic. My PhD thesis dealt with the experimental and numerical analysis of proportional directional valves. Currently I work as an academic staff member at the Department of Hydromechanics and Hydraulic Equipment at VŠB-TUO.