The impact of site and wood properties on thermo mechanical pulp. Classification of wood for more uniform TMP [thermomechanical pulping]-quality

aclareo altitud altitude anillo de crecimiento astillas bois calidad cerne classification densidad density dimension dimensions espesor fibras fibre fibres growth rings heat treatment madera mechanical properties noruega norway optical properties particule de bois pasta picea abies pinus sylvestris propiedades de la madera pulp pulping quality reaction wood site factors thickness thinning traitement thermique wood wood chips wood properties