Results 251 to 260 of about 2,248,982 (273)

The effects of maturity and growth rate on the properties of spruce wood tracheids

Wood Science and Technology, 2001
Hypotheses are created regarding the control of size scale and geometry of softwood tracheids within a genotype, and tested using two independent Norway Spruce (Picea abies) materials. Variation in physical dimensions of tracheids is controlled predominantly by cambium maturity.
Sirviö, Jari, Kärenlampi, Petri
openaire   +1 more source

Some Physical and Mechanical Properties of Juvenile Wood and Mature Wood of Taurus Cedar

2012
Bu çalışmada, Kahramanmaraş-Başkonuş mevkiinden temin edilen Toros sedirinin (Cedrus Libani A.Richard) genç odun ve olgun odununun bazı fiziksel ve mekanik özellikleri Türk standartlarına göre belirlenmiştir. Genç odunun hava kurusu yoğunluk, tam kuru yoğunluk, hacmen daralma, hacmen genişleme, lif doygunluk noktası ve taze hal rutubeti sırasıyla; 574 ...
BAL, Bekir, BEKTAŞ, İbrahim, KAYMAKÇI, Alperen   +2 more
openaire   +1 more source

A Study on Differences in Fiber Morphology between Juvenile Wood and Mature Wood

2017
Bu çalışmada, genç odun ve olgun odun arasında lif morfolojisindeki farklılıklar sedir ve okaliptüs ağaçlarından elde edilen test örnekleri üzerinde araştırılmıştır. Bu amaç için, lif uzunluğu, lif genişliği, lümen çapı ve çeper kalınlığı ölçülmüştür. Ölçümler genç odun ve olgun odun örnekleri üzerinde ayrı ayrı yapılmıştır.
openaire   +1 more source

Effect of early release from intense competition within high density natural regeneration on the properties of juvenile and mature wood of 40-year-old Sitka spruce (Picea sitchensis (Bong.) Carr.)

Annals of Forest Science, 2014
A. Cameron, B. Gardiner, J. Ramsay, Tom A. Drewett   +3 more
semanticscholar   +2 more sources

The Spectra of Reaction Wood Lignins in Relation to Wood Maturity

Holzforschung, 1958
openaire   +1 more source

Tree biomechanics and the transition from juvenile to mature wood

2016
Juvenility in xylem formation can be looked as a mere biological ageing process. It can be also the result of biomechanical adaption to growing conditions different in the young ages.The field of structural mechanics regards resistance to external forces and posture control in long lasting progressive loading, according to external conditions as wind ...
openaire   +1 more source

Juvenile and mature wood of Abies pinsapo Boissier: sorption and thermodynamic properties

Wood Science and Technology, 2015
L. G. Esteban, C. Simón, F. G. Fernández, Paloma de Palacios, R. Martín-Sampedro, M. Eugenio, Reza Hosseinpourpia   +6 more
semanticscholar   +1 more source

Thermodynamic analysis of water vapour sorption behaviour of juvenile and mature wood of Abies alba Mill.

Journal of Materials Science, 2015
C. Simón, L. G. Esteban, P. Palacios, F. G. Fernández, R. Martín-Sampedro, M. Eugenio   +5 more
semanticscholar   +1 more source

Nanomechanical characterization of wood cell walls during maturation process

2009
Improved knowledge on the way cell wall stiffness changes during the maturation process is of great importance to feed and help theoretical modelling on growth stress generation in trees. This paper outlines one of the most promising techniques to measure viscoelastic properties within the different layers of the developing cell wall based on the so ...
Bytebier, Karl, Arnould, Olivier, Arinero, Richard, Clair, Bruno, Almeras, Tancrède   +4 more
openaire   +1 more source

Properties of Juvenile and Mature Wood and Their Effects on the Bending Properties of Lumber in Pinus taeda Growing in Tochigi, Japan

, 2016
Jun Tanabe, F. Ishiguri, M. Nakayama, J. Ohshima, K. Iizuka, S. Yokota   +5 more
semanticscholar   +1 more source