Marian Ristea, PhD Eng., Technical Director of Jalmare Oy, is an Associate Professor at the Marine Engineering Department of Mircea cel Bătrân Naval Academy in Constanţa, Romania, where he conducts research in structural, naval, and ocean engineering. Between April 2015 and June 2025, he served as Vice Dean for part-time education and research at the same institution. Ristea has authored over 30 publications, including work on CFD modelling of scrubber washwater pH in collaboration with Jalmare Oy in Finland—a company he co-founded and where he currently serves as Technical Director. His expertise spans thermal and renewable energy engineering, fluid dynamics, and environmental logistics in maritime operations.

Full name: Adrian POPA. Degree level: PhD in mechanical engineering (with application on naval structures) obtained in 2009 from the Maritime University of Constanta. Work—From 2002 onwards: Romanian Naval Academy, various positions: technical assistant, assistant, assistant professor, associate professor. At present, he is dean at the Maritime Engineering Faculty, Romanian Naval Academy. Main research topics: FEM studies, CFD studies, naval structures, scrubbers, offshore structures, station keeping, cable laying, and wave energy harvesters. In the last 10 years, he has been involved in various positions (up to project manager) on several industrial technical projects for important clients in industry, such as: Ludwig Freitag (TAGU divion) van Oordt, Ørsted A/S (formerly DONG Energy), Royal Caribbean, Carnival, Fassmer Technical Projects, and JALMARE Oy.

Eng. Octavian Narcis Volintiru, PhD, is vice-dean for education at the Marine Engineering Faculty of the Romanian Naval Academy. He graduated from the Romanian Naval Academy in mechanical engineering in 2009. He completed his PhD studies in mechanical engineering at "Ferdinand I" Military Technical Academy in Bucharest. He has recently participated in projects like pollutant emissions and fuel consumption reduction in diesel engines that equip the ships of the Romanian Naval Forces and the development and implementation of a modern solution to replace the Romanian Naval Forces Fast Patrol Boats (missile) propulsion systems. His career includes 12 years as a mechanical engineer on a frigate-type military ship, combined with 8 years dedicated to teaching and research. He has published 26 papers in various journals. He possesses a deep understanding of mechanical systems, advanced problem-solving skills, and extensive experience in naval maintenance activities. His future research efforts aim to build on his PhD work to further develop models and tools in the field of mechanical engineering. His teaching disciplines include gas and steam turbines, hydraulics and pneumatics machines, and technology of maintenance and repair of naval machines and systems, and his interests include gas turbines, marine engines, and ship mechanical systems.