TY JOUR TI RESEARCH ON THE TYPES OF HYDROELECTRIC POWER TURBINES KW energy KW hydropower plant KW turbine KW velocity KW efficiency JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Seyyed, A.. PY 2024 IS 2023 PB Saint-Petersburg University of State Fire Service of Emercom of Russia