Results 101 to 110 of about 24,131 (226)
Investigation of Thermal and Sound Insulation Properties of Sapwood and Heartwood of Willow Tree
BioResourcesThe 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
Phylogenetic relationships in two African Cedreloideae genera (Meliaceae) reveal multiple rain/dry forest transitions [PDF]
, 2018 Establishing phylogenetic relationships allows investigating how species diversity has evolved in various ecosystems. The genera Entandrophragma and Khaya contain tree species distributed in different African biomes (lowland rain forest, lowland dry ...
Bouka, Ulrich Gaël +8 more
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Allometric Trajectories and \u201cStress\u201d: A Quantitative Approach [PDF]
, 2016 The term \u201cstress\u201d is an important but vague term in plant biology. We show situations in which thinking in terms of \u201cstress\u201d is profitably replaced by quantifying distance from functionally optimal scaling relationships between plant ...
Anfodillo, Tommaso +4 more
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Maderas: 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
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Effects of moisture content on the behaviour of Scots pine heartwood and sapwood under impact
Journal of Wood ScienceThe material properties of sapwood and heartwood vary within various wood species and even they can show significant differences within a single tree. Scots pine (Pinus sylvestris L.), a species that plays a crucial role in timber production for joinery ...
Mojtaba Hassan Vand, Jan Tippner
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Radial Distribution of Lipophilic Extractives in Walikukun (Schoutenia ovata Korth.) Wood
South-East European ForestryWalikukun (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
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, 2017 We develop a 3D porous medium model for sap flow within a tree stem, which consists of a nonlinear parabolic partial differential equation with a suitable transpiration source term. Using an asymptotic analysis, we derive approximate series solutions for
Janbek, Bebart Maisar, Stockie, John M.
core
The decay resistance and moisture dynamics of wood
Silva Fennica, 1987 In laboratory studies the heartwood content seems to be the only natural property of a wood of different tree species influencing the decay resistance. Moistening and drying by diffusion happen quite slowly.
Kärenlampi, Petri
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Optimization of the bi-oleothermal treatment process for wood preservation and fireproofing [PDF]
, 2011 The bi-oleothermal© process (combination of oil and heat treatment) is a well mastered alternative method for wood protection. However, the fire behavior and resistance to decay of bi-oleothermally treated wood are not good enough to ensure performance ...
Alfos, Carine +5 more
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LesThe 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
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