TY JOUR TI Theoretical research of parameters of the wave disk KW wave disk KW tillage KW technological process KW the angular velocity KW efficiency KW design parameters JO Actual directions of scientific researches of the XXI century: theory and practice AU Khripchenko, M.. AU Pridvorova, A.V. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov