We are happy that we could host Dr. Thangaraja Jeyaseelan, Vellore Institute of Technology (VIT), for 6 months (September 2022 – February 2023) during his research stay at the Institute of Thermodynamics, Professorship for Energy Conversion. During that time, we worked together in the field of sub- and transcritical injections analyzed by using optical diagnostics and artificial neuronal networks. We thank the Science and Engineering Research Board (SERB), India for granting the necessary funding. We are looking forward to continue and intensify our collaboration with bilateral visits in Vellore and Munich!