TY JOUR TI MATHEMATICAL MODEL OF BARK REMOVER PNEUMOHYDRAULIC DRIVE OF ROTOR BARKING MACHINE KW rotor barking machine KW hydraulic drive KW pneumatic drive KW rotor KW barkingtool KW mathematical model JO Bulletin of KSAU AU Pobedinsky, V.V. AU Berstenev, A.V. PY 2012 IS PB Krasnoyarsk State Agrarian University