... cylinders Designing more compact and shorter paper machines would mean substantial savings in investments The concept of 324 Mass Transfer in Multiphase Systems and its Applications impulse drying ... blocking’ critical oxygen diffusion pathways (Amissah et al., 2007, Wang et al., 199 9, Cho et al., 199 9, Cheng et al., 2008, Priester, 198 9, Korinek et al., 199 4) and/ or by strengthening grain ... doctorat, Institut National Polytechnique de Lorraine, Nancy, France 312 Mass Transfer in Multiphase Systems and its Applications Bramhall, G ( 197 9a) Mathematical model for lumber drying I - Principles...