Affiliation: | aSzczecin University of Technology, Department of Water Technology and Environment Engineering, 70-322 Szczecin, ul. Pułaskiego 10, Poland bFaculty of Engineering, Aichi Institute of Technology, Yakusa, Toyota 470-0392, Japan cFaculty of Engineering, Oita University, Dannoharu 700, Oita 870-1192, Japan |