TY JOUR TI Dynamic characteristics of the chambers of the extruder KW extruder KW pulsations KW pressure KW amplitude KW mathematical model. JO Actual directions of scientific researches of the XXI century: theory and practice AU Magomedov, M.. AU Zhuravlev, A.. AU Khvostov, A.. AU Lobosova, L.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov