Results 31 to 40 of about 425,107 (283)

Deformations during drying of wooden corner elements of I-beams

open access: yesMagazine of Civil Engineering, 2020
At present, environmental degradation is occurring, which affects forests. Increasingly, in the trunks of conifers there is core (sound) rot. Round timber with sound rot is left in the forest, which does not contribute to improving the environmental ...
Aleksandr Toropov   +2 more
doaj   +1 more source

An Assessment of the Carbon Footprint of Tropical Hardwood Sawn Timber Production

open access: yesBioResources, 2015
The demand for sawn timber throughout the world is steady, as wood is one of the most important raw materials available to mankind. Yet, the production of sawn timber through sawmilling activities causes environmental issues and is perceived to have a ...
Jegatheswaran Ratnasingam   +5 more
doaj   +1 more source

Detection Method for Bolted Connection Looseness at Small Angles of Timber Structures based on Deep Learning

open access: yesSensors, 2021
Bolted connections are widely used in timber structures. Bolt looseness is one of the most important factors leading to structural failure. At present, most of the detection methods for bolt looseness do not achieve a good balance between cost and ...
Yabin Yu   +5 more
doaj   +1 more source

Impact bending strength of Finnish tree species in green condition

open access: yesSilva Fennica, 1985
There are great impact forces in mechanized harvesting and wood yard in the mills which can cause breaks in timber. The impact strength of timber in green condition was tested in temperatures of +18°C and -18°C using sawn pieces (20 x 20 x 300 mm) of ...
Kärkkäinen, Matti   +2 more
doaj   +1 more source

Wood Sawdust as a Low‐Cost Filler in Whole‐Tire Reclaimed Rubber: Mechanical Characterization and Factory‐Scale Cost Analysis

open access: yesJournal of Applied Polymer Science, EarlyView.
Whole‐tire reclaimed rubber is upgraded with wood sawdust, a carpentry by‐product available at no cost, across loadings from 0 to 20 wt%. At 5 wt%, tensile strength, elongation, hardness, viscosity, and water absorption all stay within commercial specification, and real factory data show an annual production saving near $62,000 with no capital ...
Mohammed S. Matar   +3 more
wiley   +1 more source

Revisiting paravertebral muscles in European rabbits (Oryctolagus cuniculus) and European brown hares (Lepus europaeus) (Leporidae; Lagomorpha)

open access: yesThe Anatomical Record, EarlyView.
Abstract Domesticated European rabbits (Oryctolagus cuniculus) have long been chosen as laboratory model organisms. Despite this, there has been no definitive study of the vertebral musculature of wild rabbits. Relevant descriptions of well‐studied veterinary model mammals (such as dogs) are generally applicable, but not appropriate for a species ...
Nuttakorn Taewcharoen   +3 more
wiley   +1 more source

Production Potential of the Forests in the Czech Republic

open access: yesBioResources, 2015
This article discusses the production potential (and limits) of the forests in the Czech Republic (CR). The calculation respects ecological limits set by typological system and the Czech forestry legislation.
Karel Pulkrab   +2 more
doaj   +1 more source

Sectoral use of imported wood raw material in Turkey

open access: yesTurkish Journal of Forestry, 2020
In this study, it is determined that usage areas of imported round wood, sawn wood and shaped wood regarding to tree species and factors affecting importer behavior and import trends in Turkey. The research data were collected for 2014 and 2015 with face-
Musa Akkaya   +4 more
doaj   +1 more source

Large-Scale Variations in Lumber Value Recovery of Yellow Birch and Sugar Maple in Quebec, Canada. [PDF]

open access: yesPLoS ONE, 2015
Silvicultural restoration measures have been implemented in the northern hardwoods forests of southern Quebec, Canada, but their financial applicability is often hampered by the depleted state of the resource.
Mariana Hassegawa   +5 more
doaj   +1 more source

Looking for hopeful purpose in England's environmental education policy: An analysis of the National Education Nature Park

open access: yesBritish Educational Research Journal, EarlyView.
Abstract The intertwined crises of climate change, biodiversity loss and environmental degradation represent profound global challenges. Education holds a unique role in enabling all young people to navigate uncertainty, participate meaningfully in decision‐making and contribute to more just and sustainable ways of living.
Julie Robinson   +2 more
wiley   +1 more source

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