TY JOUR TI INFLUENCE OF ULTRASOUND ON THE CHANGE OF LIQUID VOLUME FRACTION IN FOAM AND ITS STABILITY KW BULK AND MULTILAYER FOAM KW ULTRASONIC ACTION KW LIQUID VOLUME FRACTION KW STABILITY JO Herald of Technological University AU Vilkova, N.G. AU Mishina, S.I. AU Kuznecov, D.A. PY 2025 IS PB Kazan National Research Technological University