Results 21 to 30 of about 1,278,526 (294)

Mechanical strength of reaction wood

Silva Fennica, 1977
According to the literature, the mechanical strength of the green reaction wood of softwood species (compression wood) is greater than that of normal wood. Drying increases the mechanical strength but less in reaction wood than in normal wood.
Kärkkäinen, Matti, Raivonen, Marjut
doaj   +1 more source

Variability of spruce (Picea abies [L.] Karst.) compression strength with present reaction wood

Journal of Forest Science, 2009
The aim of research was to find out the variability of spruce (Picea abies [L.]) Karst.) wood compression strength limits in the direction parallel to grain.
V. Gryc, H. Vavrčík
doaj   +1 more source

Ethylene and auxin in the control of wood formation [PDF]

, 2003
This thesis considers aspects of the regulation of growth rate and fibre properties in forest trees. These properties are both genetically determined and influenced by environmental stimuli.
Jenny Maria Hellgren, Hellgren, Jenny Marie, Hellgren, Jenny Maria   +2 more
core   +1 more source

Chemical Characterisation of Compression Wood in Plantation Grown Pinus Radiata [PDF]

, 2007
The primary objective of this study was to find out if changes in chemistry could be used to quantify Pinus radiata compression wood severity or degree of compression wood development.
Nanayakkara, Bernadette
core  

Anorectal Dysfunction in Systemic Sclerosis: Clinical Phenotypes and Functional Patterns

Arthritis Care &Research, EarlyView.
Objective The aim of this study was to characterize specific physiologic defects in anorectal dysfunction in systemic sclerosis (SSc) using anorectal manometry (ARM), evaluate associations with gastrointestinal (GI) and extraintestinal clinical phenotypes, and explore potential serologic markers for risk stratification.
Timothy Kaniecki, Alireza Amindarolzarbi, Tsion Abdi, John Clarke, Michael Hughes, Ami A. Shah, Zsuzsanna H. McMahan   +6 more
wiley   +1 more source

The molecular architecture distinctions between compression, opposite and normal wood of Pinus radiata

Frontiers in Plant Science
In gymnosperms compression wood is a specialised type of structural cell wall formed in response to biomechanical stresses. The differences in terms of gross structure, ultrastructure and chemistry are well-known.
Rosalie Cresswell, Alan Dickson, Michael Robertson, Suzanne Gallagher, Regis Risani, Marie Joo Le Guen, Henry Temple, Aleksandra Liszka, Aleksandra Liszka, Lloyd Donaldson, Nigel Kirby, John Ralph, Stefan Hill, Paul Dupree, Ray Dupree, Mathias Sorieul   +15 more
doaj   +1 more source

Effect of compression wood on surface roughness and surface absorption of medium density fiberboard

Silva Fennica, 2006
Compression wood is undoubtedly one of the most important raw material variables in wood based panel manufacturing. This study evaluated effect of compression wood on surface roughness and surface absorption (flow distance) of medium density ...
Akbulut, Turgay, Ayrilmis, Nadir
doaj   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Real-time spectral classification of compression wood in Picea abies

, 1999
Compression wood is formed by the living tree to compensate for external loads. It creates wood fibers with properties undesirable in sawn products. Automatic detection of compression wood can lead to production advantages.
Nyström, Jan, Hagman, Olle,
core   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source