Comparative Structural Analysis of Hydrodynamic Interaction of Full-Submerged Tandem Archimedes Screws of Rotary-Screw Propulsion Units of Snow and Swamp-Going Amphibious Vehicles with the Water Area in Running and Mooring Modes Topics: Off the Road Vehicles; Vehicle Environment Perception In Proceedings of the 9th International Conference on Vehicle Technology and Intelligent Transport Systems VEHITS - Volume 1, 386-393, 2023 , Prague, Czech Republic