Results 71 to 80 of about 45,691 (235)
Ultrastructural characterization (morphological and topochemical) of wood pulp fibres [PDF]
, 2007 Different electron microscopy techniques including SEM (scanning electron microscopy), FE-SEM (field emission-scanning electron microscopy), TEM (transmission electron microscopy) and Immuno-gold TEM (immuno-gold transmission electron microscopy) were ...
Fernando, Dinesh
core
Spatial relationships between polymers in Sitka spruce: proton spin-diffusion studies [PDF]
, 2006 The spatial arrangement of polymers in Sitka spruce (Picea sitchensis) was investigated by NMR proton spin-diffusion studies, supplemented by deuterium-exchange experiments monitored by FTIR spectroscopy.
Bardet +6 more
core +1 more source
Deriving the Charring Rate of a Wood Fibre Insulation Board by Exposure to the ISO 834 Standard Fire
Fire and Materials, EarlyView.ABSTRACT Wood fibre insulation boards (WFIB) are widely used combustible building materials, commonly applied in energy‐efficient construction for their thermal and hygric performance. The present study investigates the behaviour of the most common type of wood fibre insulation when exposed to the ISO 834 standard fire.
Joel Philippe Karolin +4 more
wiley +1 more source
Char Layer Thickness Evolution During Structural Timber Fire Experiment and Final Density Profile
Fire and Materials, EarlyView.ABSTRACT This paper evaluates several non‐destructive experimental methods for determining the char layer thickness and its density profile in structural timber samples exposed to standard ISO 834 fire curve experiments. Microwave echo pulse, ultrasonic echo pulse, X‐ray computed tomography, and resistance drilling were evaluated.
Fernando Pérez Pérez +4 more
wiley +1 more source
Scientia Agricola, 2005 The distinct characteristics of juvenile and mature woods, which are observed particularly in softwoods, have an influence on processing due to their different mechanical resistance properties in relation to cutting operations.
Raquel Gonçalves, Antônio Carlos Néri
doaj +1 more source
Low‐Hysteresis Cellulose‐Based Hydrogels for Strain Detecting
Macromolecular Rapid Communications, EarlyView.Low‐hysteresis hydrogel with high cellulose content is prepared. The modified cellulose is prepared through a sequential periodate oxidation and borohydride reduction process. The hydrogel can be used as a strain sensor with a gauge factor of 1.1 in the 0%–300% sensing range.
Xia Sun, Fanghan Luo, Feng Jiang
wiley +1 more source
MICROSTRUCTURAL AND PHYSICAL ASPECTS OF HEAT TREATED WOOD. PART 1. SOFTWOODS
Maderas: Ciencia y Tecnología, 2006 Heat treatment of wood is an effective method to improve the dimensional stability and durability against biodegradation. Optimisation of a two-stage heat treatment process at relatively mild conditions (
M.J Boonstra +7 more
doaj
Basalt FRP Spike Repairing of Wood Beams
Fibers, 2015 This article describes aspects within an experimental program aimed at improving the structural performance of cracked solid fir-wood beams repaired with Basalt Fiber Reinforced Polymer (BFRP) spikes.
Luca Righetti +2 more
doaj +1 more source
Softwood Lumber – Some Lessons from the Last Softwood (Lumber IV) Dispute
The School of Public Policy Publications, 2017 The checkered history of softwood lumber disputes between Canada and its southern neighbour stretches back to the 1800s, with five of them occurring since 1982. Two years ago, the settlement obtained in 2006 expired and most Canadian softwood lumber exporters now face a combined countervailing and anti-dumping duty rate from the Americans of around 27 ...
openaire +4 more sources
Polymer Composites, EarlyView.Graphical abstract illustrating the fabrication of PLA and wood‐PLA composites via FDM and their subsequent mechanical testing, water absorption, and re‐drying evaluation. ABSTRACT Natural fiber‐reinforced thermoplastic composites have gained increasing attention due to their sustainability.
Weilong Xu +4 more
wiley +1 more source