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Items for "pine"

Bioactive phenolic substances in industrially important tree species. Part 4: Identification of two new 7-hydroxy divanillyl butyrolactol lignans in some spruce, fir, and pine species

A few lignans, that is, 7-hydroxymatairesinol, secoisolariciresinol, lariciresinol, and nortrachelogenin, predominate in a large proportion of the industrially important softwood species used...

Keywords: Abies, fir, 7-hydroxy divanillyl butyrolactol lignans, isoliovil, knots, knotwood, lignans, liovil, Picea, pine, Pinus, spruce, todolactol A

07/2005 | Holzforschung, Walter de Gruyter

The prediction of pulp yield using selected fiber properties

The present study is dealing with the question how the major yield-controlling components in pulp (i.e.,hemicelluloses and lignin) alter the behavior and/or properties (e.g., dimensions, flexibility, sugar content) of the fibers...

Keywords: Bauer McNett, biokraft, cell wall thickness, coarseness, fiber basis weight, fiber length, fiber width, Kajaani, kraft, maple, pine, polysulfide, pulping yield, soda

09/2005 | Holzforschung, Walter de Gruyter

Diffusion of tritiated water into water-saturated wood particles

The diffusion rate of tritiated water into pine and aspen particles follows a Fickian mechanism...

Keywords: aspen, diffusion, Fickian, pine, pulping, tortuosity

01/2006 | Holzforschung, Walter de Gruyter

Diffusion of sulfide into Southern pine (Pinus taeda L.) and sweetgum (Liquidambar styraciflua L.) particles and chips

Sulfide diffusion into wood has a rapid reversible component and a much slower irreversible component...

Keywords: charge exclusion, diffusion, hydroxide, Imaging, pine, pulping, sulfide, tortuosity, visualization

08/2006 | Holzforschung, Walter de Gruyter

Pine and spruce roundwood species classification using multivariate image analysis on bark

Wood discs from 67 pine and 79 spruce logs were collected from a forest clearing. Three different 24-bit red-green-blue (RGB) images were acquired from the radial surface of each disc...

Keywords: bark, co-occurrence matrix, multivariate image analysis, partial least squares projection to latent structures (PLS), pine, spruce, wavelet, wood species

11/2005 | Holzforschung, Walter de Gruyter