Results 101 to 110 of about 2,820 (212)

Age trends of microfibril angle inheritance and their genetic and environmental correlations with growth, density and chemical properties in Eucalyptus urophylla S.T. Blake wood

, 2012
Context The genetic and environmental control of microfibril angle (MFA) and its genetic correlations with other wood and growth traits are still not well established in Eucalyptus sp.
Bouvet, Jean-Marc, Chaix, Gilles, Mandrou, Eric, Hein, Paulo Ricardo Gherardi, Clair, Bruno, Vigneron, Philippe   +5 more
core   +1 more source

Combination of homogenization and nanoindentation in search for microfibril angle of spruce

, 2016
Tato práce se zabývá odhadem odklonu celulózových vláken v buněčné stěně smrkového dřeva využitím porovnání výsledků získané mikromechanickou homogenizací s výsledky měření pomocí nanoindentace. Homogenizace byla prováděna s postupným zvětšováním měřítka
Kucíková Lucie
core  

Application of Small-Angle X-Ray Scattering to Predict Microfibril Angle in <i>Acacia mangium</i> Wood

, 2010
Partially crystalline cellulose microfibrils are wound helically around the longitudinal axis of the wood cell. A method is presented for the measurement, using small-angle X-ray scattering (SAXS), of the microfibril angle, (MFA) and the associated ...
Radiman Shahidan, Tabet A. Tamer, Aziz Abdul Haji Fauziah   +2 more
core   +1 more source

Correlations among microfibril angle, density, modulus of elasticity, modulus of rupture and shrinkage in 6-year-old Eucalyptus urophylla × E. grandis

Maderas: Ciencia y Tecnología, 2013
The cellulose microfibril angle (MFA) in the cell wall is known to have major effects on wood stiffness and shrinkage. However, its influence on juvenile wood traits is not fully understood, especially in Eucalyptus. The aim of this study was to evaluate
P.R.G Hein, J.R.M Silva, L Brancheriau
doaj  

Establishment of the method for preparing cellulose materials “colorless woods” derived from hardwoods with various densities and anatomical structures

Journal of Wood Science
This research reports novel cellulosic materials named “colorless hardwoods”, which have no lignin and almost no hemicellulose, derived from three wood species with different anatomical structures: Fagus crenata (diffuse-porous), Paulownia tomentosa ...
Shunsuke Sakai, Masaumi Miyabayashi, Rino Tsushima, Satoshi Nakaba, Ryo Funada, Tatsuki Kurei, Yoshiki Horikawa   +6 more
doaj   +1 more source

Correlations among microfibril angle, density, modulus of elasticity, modulus of rupture and shrinkage in 6-year-old Eucalyptus urophylla × E. Grandis

Maderas: Ciencia y Tecnología, 2014
The cellulose microfibril angle (MFA) in the cell wall is known to have major effects on wood stiffness and shrinkage. However, its influence on juvenile wood traits is not fully understood, especially in Eucalyptus. The aim of this study was to evaluate
P.R.G. Hein, J.R.M. Silva, L. Brancheriau   +2 more
doaj  

Role of Lignin in Moisture Interactions of Cellulose Microfibril Structures in Wood

Small Structures
Wood is a complex, multi‐component material with a variety of applications. The properties of wood are especially sensitive to its moisture content and comprehending wood–water interactions is thus paramount. Understanding of the moisture interactions of
Aleksi Zitting, Antti Paajanen, Michael Altgen, Lauri Rautkari, Paavo A. Penttilä   +4 more
doaj   +1 more source

Cellulose Microfibril Angle as a Determinant of Paper Strength and Hygroexpansivity in Pinus Taeda L.

, 2007
To determine the importance of cellulose microfibril angle (MFA) for paper sheet mechanical properties, we prepared unbleached kraft pulps from ten individual, 10-year-old Pinus taeda (loblolly pine) trees similar in wood density, coarseness, cell-wall ...
Courchene, Charles E., Peter, Gary F., Litvay, John   +2 more
core  

APLICACIÓN DE ESPECTROMETRÍA DE RAYOS X PARA EL ESTUDIO DE LA MADERA: ALGUNOS RESULTADOS INICIALES X-RAYS SPECTROMETRIC METHODS FOR WOOD PROPERTIES DETERMINATION: SOME INITIAL RESULTS

Maderas: Ciencia y Tecnología, 2007
El objetivo de este artículo es mostrar la posibilidad de utilizar fuentes policromáticas de rayos X en experimentos relacionados con la madera en que normalmente se requiere de fuentes monocromáticas.
Ricardo Baettig, Patrick Perré, Romain Rémond   +2 more
doaj  

Concerns About a Variance Approach to X-Ray Diffractometric Estimation of Microfibril Angle in Wood

, 2011
In this article, we raise three technical concerns about Evans' 1999 Appita Journal "variance approach" to estimating microfibril angle (MFA). The first concern is associated with the approximation of the variance of an X-ray intensity half-profile by a ...
Verrill, Steve P., Herian, Victoria L., Alden, Harry A., Kretschmann, David E., Wiemann, Michael C.   +4 more
core