Results 71 to 80 of about 800,641 (299)

Wood density and wood shrinkage in relation to initial spacing and tree growth in black spruce (Picea mariana)

open access: yesJournal of Wood Science, 2021
This study has quantified basic wood density and various types of wood shrinkage in relation to initial spacing (or initial planting density) and tree growth based on a 48-year-old black spruce (Picea mariana) spacing trial in eastern Canada.
Shu Yin Zhang, Haiqing Ren, Zehui Jiang
doaj   +1 more source

Evaluation of wood basic density as an indirect measurement of the volume of wood raw material [PDF]

open access: yes, 2007
The manufacturing process of wood agglomerate integrates distinct unit that transforms wood raw material into wood agglomerate. The yield of wood agglomerate produced is influenced by the density and the quality of the initial raw material. This work has
Abella, D., Anjos, O., Moura, S.
core  

Still rethinking the value of high wood density [PDF]

open access: yesAmerican Journal of Botany, 2012
• Premise of the study: In a previous paper, we questioned the traditional interpretation of the advantages and disadvantages of high wood density (Functional Ecology 24: 701–705). Niklas and Spatz (American Journal of Botany 97: 1587–1594) challenged the biomechanical relevance of studying properties of dry wood, including dry wood density, and stated
Larjavaara, Markku   +1 more
openaire   +3 more sources

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende   +26 more
wiley   +1 more source

Changes in tree-ring wood density of European beech (Fagus sylvatica L.), silver fir (Abies alba Mill.), and Norway spruce (Picea abies (L.) H. Karst.) in European mountain forests between 1901 and 2016

open access: yesAnnals of Forest Science
Key message We found a significant increase in the latewood density of European beech, and a decrease in the latewood and mean wood density of silver fir and Norway spruce in European mountain forests over the period 1901–2016.
Chiara Torresan   +9 more
doaj   +1 more source

Understanding of the effect of natural saltwater treatment on durability, fibers densification and chemical modification of palm wood [PDF]

open access: yes, 2017
Nowadays, the Tunisian primary wood-processing industry consumes more than 872,000 m3 of wood raw materials, of which only 119,000 m3 are supplied by local forest resources.
Candelier, Kévin   +2 more
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Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher   +10 more
wiley   +1 more source

Effect of intensive planting density on tree growth, wood density and fiber properties of maple (Acer velutinum Boiss.)

open access: yesiForest - Biogeosciences and Forestry, 2016
Planting density is a major factor in determining tree growth and wood quality. Although the effect of low planting density on the variation of tree and wood characteristics has been already reported, the effect of intensive initial densities in ...
Naji Hamid R   +5 more
doaj   +1 more source

INFLUENCE OF SOIL TYPE ON WOOD DENSITY AND MEAN ANNUAL INCREMENT IN TWO COMMERCIAL Eucalyptus CLONES

open access: yesRevista do Instituto Florestal, 2020
In forest plantations, the productive potential of a given site results from the interaction between genetic materials and environmental conditions. Both are fundamental factors for wood quality and Mean Annual Increment.
Gustavo Torres Galvão da Silva   +5 more
doaj   +1 more source

Wood density for forest conservation: towards improvement of biomass and carbon stocks in tropical regions [PDF]

open access: yes, 2015
The assessment of forest biomass has important consequences for climate-related policies, including conservation and activities related to deforestation and forest degradation.
Birigazzi, Luca   +9 more
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