Results 41 to 50 of about 19,790 (235)
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
Maderas: Ciencia y Tecnología, 2019 Vibrational spectroscopy approaches like FT-IR and FT-Raman, as analytical method, can be used to assess chemical changes in historical wood structures.
Seyed Mahdi Moosavi Nejad +3 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
Styrene and its natural analogues: accumulation and sustainable production methods
Journal of the Science of Food and Agriculture, EarlyView.Abstract Styrene, also known as vinyl benzene, is a colourless, highly volatile petrochemical that serves as a key monomer in the production of polystyrene and styrene‐butadiene rubber. Its industrial synthesis via the alkylation of benzene with ethylene relies on fossil fuels, requiring high temperatures and toxic catalysts that contribute to ...
Mwafaq Ibdah +6 more
wiley +1 more source
The Journal of Wildlife Management, EarlyView.Snowshoe hare population densities in Pennsylvania were greatest in early‐successional forest and densely‐understoried mature forest. Forest management that increases and maintains the amount of early‐successional forest, or that increases understory complexity in mature forest, would benefit snowshoe hares and may mitigate population declines under ...
Amanda L. Zak +4 more
wiley +1 more source
BuildingsThe impact of ultimate limit state checks on the fire resistance of the cross-section (element) of softwood structural timber is analyzed in this study, which was found to depend on the cross-sectional area, strength class or material quality expressed ...
Jurko Zovkić, Zlata Dolaček-Alduk
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
Magnetic Resonance in Chemistry, EarlyView.We establish a two‐dimensional solid‐state NMR 13C chemical shift mapping framework that resolves diagnostic features and explicitly visualizes spectral overlap among guaiacyl and syringyl lignin substructures in intact plant cell walls. Application across Arabidopsis genotypes and developmental stages, hardwoods, and softwood reveals distinct lignin ...
Peng Xiao +7 more
wiley +1 more source
Total Factor Productivity and Canadian Softwood Lumber Imports [PDF]
, 2017 The gap in total factor productivity (TFP) growth in sawmill and wood preservation industry widened between the US and Canada over the period 1958 to 2003. Stages of the softwood lumber dispute had different effects on TFP growth.
Nagubadi, Rao V. +2 more
core +1 more source