%0 Journal Article %T THE CONTACT DEVICES OF POPPET COLUMNS %A Medvedev, D.M. %A Podoplelov, E.V. %A Dement'ev, A.I. %K contact devices, mass transfer devices, range of stable operation, hydraulic resistance %J Modern Technologies and Scientific and Technological Progress %D 2022 %N 2022 %P 1 %I Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»