TY JOUR TI OPTIMIZATION OF GEOMETRIC PARAMETERS OF MICROTURBINE BLADE PROFILE KW energy supply KW microturbine KW modeling KW rotor KW software KW airfoil profile KW flat airfoil JO Vestnik of Kazan State Agrarian University AU Gayfullin, I.. AU Haliullin, D.T. AU Gaston, B.. PY 2025 IS 20 PB Kazan state agrarian University