Results 61 to 70 of about 3,056 (179)

Investigation of Thermal and Sound Insulation Properties of Sapwood and Heartwood of Willow Tree

open access: yesBioResources
The heat and sound insulation properties of the heartwood and sapwood of willow (Salix alba L.) were investigated.  Based on the experimental results, it was determined that the density value of the heartwood of the willow tree was higher than that of ...
Musa Kaya, Ramazan Bülbül, Mutlu Türk
doaj  

Density and Mechanical Properties of Oak Sapwood Versus Heartwood

open access: yesDrvna Industrija, 2014
The aim of this study was to investigate the main mechanical properties of sapwood and heartwood in white and red oaks. Samples of wood were taken from 26 oak beams prepared to be used for railway sleepers, of which 62 % were from white oak (either ...
Maks Merela, Katarina Čufar
doaj   +1 more source

Mineral nutrient concentrations in sapwood and heartwood: a literature review [PDF]

open access: yesAnnals of Forest Science, 2002
Concentrations en éléments minéraux dans le bois de cœur et l'aubier : une revue de la littérature. Les patrons de variation des concentrations en N, P, K, Ca et Mg dans le bois de cœur et l'aubier sont analysés à partir de données de la littérature se rapportant à 22 espèces de Gymnospermes et 71 espèces d'Angiospermes.
openaire   +2 more sources

Phenolics content and antioxidant activity of wood extractives from three clones of acacia hybrid (Acacia mangium × Acacia auriculiformis)

open access: yesMaderas: Ciencia y Tecnología, 2021
The objective of this study was to investigate the extractive content of three fast growing Acacia hybrid clones (Clone 16, 25, and 44) wood in three radial directions (SW = sapwood; OHW = outer heartwood; IHW = inner heartwood); total phenolic ...
Brandon Aristo Verick Purba   +2 more
doaj  

Radial Distribution of Lipophilic Extractives in Walikukun (Schoutenia ovata Korth.) Wood

open access: yesSouth-East European Forestry
Walikukun (Schoutenia ovata Korth.) is a commercially significant wood species in Indonesia. Heartwood, in particular, is important due to the natural durability and aesthetics, while lipophilic extractives play a crucial role in the formation. Therefore,
Rizki Arisandi   +5 more
doaj   +1 more source

APPLICATION OF X-RAY TECHNIQUE IN NONDESTRUCTIVE EVALUATION OF EUCALYPT WOOD

open access: yesMaderas: Ciencia y Tecnología, 2008
X-rays were initially used for the inspection of special-purpose wood pieces for quantitative evaluation of wood properties of different species. X-ray densitometry has had its use expanded in dendroclimatology of Picea engelmannii trees.
M Tomazello   +5 more
doaj  

Grade Classification of Agarwood Sapwood Using Deep Learning

open access: yesJOIV: International Journal on Informatics Visualization
The agarwood tree (Aquilaria sp.) is a tree that produces agarwood, which is a black resin that has a distinctive fragrant smell. In Indonesia, one that is commonly traded is sapwood agarwood.
Heliza Rahmania Hatta   +3 more
doaj   +1 more source

SOME ASPECTS OF WESTERN HEMLOCK AIR PERMEABILITY

open access: yesMaderas: Ciencia y Tecnología, 2008
Knowledge of the variability of fluid permeability of wood in general and of western hemlock in particular is of significant importance to the primary and secondary wood products processing industry of coastal British Columbia.
Prasad Rayirath, Stavros Avramidis
doaj  

Physical and mechanical properties of wood of plantation grown Albizia lebbeck in the savannah ecological zone, Ghana

open access: yesLes
The increasing scarcity of major commercial tropical hardwood species has necessitated the utilization of plantation grown exotic timber species as a potential means of maintaining Ghana's foundation of timber resources.
Enoch Gbapenuo Tampori   +3 more
doaj   +1 more source

Wood Color Variation in Anatomical Sections of Cedrus libani from Two Mediterranean Regions

open access: yesBioResources
Wood color is an important factor influencing the aesthetic and commercial value of timber products. This study aimed to clarify the natural color variation in Lebanon cedar (Cedrus libani A.
Uğur Özkan   +3 more
doaj  

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