Your search resulted in 737 documents. Displaying 25 entries per page.
A Comparison of Cross-Laminated Timber (CLT) Floor Panels using Finite Element Analysis and Experimental Fire Testing
2022 - IRG/WP 22-40955
…model of a CLT floor panel was developed using the Finite Element (FE) Method in Abaqus. This paper analyses the thermal behaviour of a CLT panel when exposed to a standard test fire. In the modelling of a CLT floor panel, Eurocode 5 temperature-dependent relationships were adopted. The results of the FE…
M Yasir, A Macilwraith, K Ruane
Finite element analysis of boron diffusion in wooden poles
2003 - IRG/WP 03-40263
…parameters required. The equations are solved by the finite element method and finally, results showing the effect of different treatment strategies are presented.
K Krabbenhøft, P Hoffmeyer, C G Bechgaard, L Damkilde
Finite Element Modelling of the Checking of Wood Exposed to Accelerated Weathering
2010 - IRG/WP 10-20459
…checking. In this paper we describe a two-dimensional finite element model that couples moisture diffusion, dimensional change and the development of strains in wooden decking boards exposed to accelerated weathering. The model successfully predicts the strains that cause checks to form in decking boards exposed…
S G Ribarits, P D Evans
A Case Study of Vogvarjeva hiša, a Local Ethnographic Museum
2025 - IRG/WP 25-41027
…18th Century wooden architecture and an important element of the region’s cultural heritage. The building was constructed from local timber on stone foundations and reflects the traditional rural building techniques of the Gorenjska region. Since it was declared a cultural monument in 1985, it has…
D Kržišnik, L Kopač, D Jones, M Humar
Metabolite analysis of fungal COS degradation and phylogenetic investigation of COSase genes
2023 - IRG/WP 23-11018
…energy and nitrogen as a relatively abundant biocomponent element. On the other hand, for micronutrient elements such as sulfur, despite their physiological importance, there is limited knowledge on their acquisition sources and metabolic pathways. We have previously found that the soil Ascomycota and wood-rotting…
R Iizuka, S Hattori, I Ohtsu, D Hibbett, Y Katayama, M Yoshida
Characterization of wood modification prepared by in situ polymerization with pre-polymer and the mechanism of modification
2013 - IRG/WP 13-40633
…machine by in situ polymerization. Fungal decay analysis, mechanical properties and dimension stability of the natural and modified woods were investigated. The wood samples were also characterized by X-ray diffraction (XRD) Thermal stability (TG), fourier transform infrared spectroscopy (FTIR),…
Qian Lang, Zeng Bi, Junwen Pu
Aesthetic service life of coated and uncoated wooden cladding - influencing factors and modelling
2011 - IRG/WP 11-20470
…on exterior coated cladding façades is an undesirable element and will often shorten the aesthetical service life. Mould growth on painted surfaces is influenced by type and concentration of film fungicides, the paint formulation and the wood substrate itself, and wooden cladding may experience exponential…
L Ross Gobakken, O A Høibø
Wood protection by means of electro osmotic pulsing technology (PLEOT)
2010 - IRG/WP 10-40505
…pine sapwood samples was calculated after testing and an element analysis was performed on the sample powder. The results show that PLEOT- protected samples have nearly no mass loss after 4, 8 and 12 weeks of exposure to Coniophora puteana in laboratory trials. The samples protected with PLEOT showed lower moisture…
A Treu, E Larnøy
Evaluating the Process of ACQ-Treated Woods with TGAand CEM Analysis
2007 - IRG/WP 07-20374
…40 oC/min), and the use of EDX to examine certain residual elements of the char. The second applies the CEM techniques to evaluate the emission gas concentrations of O2 and CO2 concentration, the emission content (CO, SO2, NOx), and the emission gases temperature were measured using a Flue-gas Analyzer from the exit…
Han Chien Lin, Tsang-Chyi Shiah, Jung Ting Tsai
Fixation and leaching of selected Malaysian tropical hardwood after treated with CCA
2001 - IRG/WP 01-40207
…were analyzed by AAS and the amount of remaining CCA elements in the cell (lumen and cell wall) were observed and analyzed using SEM and EDXA. The remaining CCA elements in sample/cell wall indicate the ability of fixation of the samples. Sentang wood could be successfully treated with CCA. Sentang heartwood is…
R Hashim, O Sulaiman, Tan Siew Ching, K Yamamoto
Preliminary PIXE micro-analysis of copper-chrome-arsenic preservative treated Malaysian hardwoods
1999 - IRG/WP 99-20169
…was applied for examining the macro-distribution and micro-analysis of copper-chrome-arsenic (CCA) preservative in Malaysian hardwoods Koompassia malaccensis, K. excelsa, Alstonia spp. and Dipterocarpus spp., and one temperate pinewood Pinus sylvestris, where the preservative retention differed between these wood…
A H H Wong, R B Pearce, G W Grime, F Watt
Xerophilic mould fungi on new and historic wood
2025 - IRG/WP 25-11056
…the short exposure time the new wood had in this study.
Analysis of samples shows large differences in mould growth on new wood compared to historic wood. Mould species found on old wooden materials have ecological growth requirements indicating that the damage is mainly caused by exposure to temporary wet…
J Mattsson, M S Austigard
Revealing the degradation process of Moso bamboo (Phyllostachys edulis) by different decay fungi
2025 - IRG/WP 25-11060
…of bamboo. The results of chemical composition analysis and XPS further proved that the degradation of bamboo by T. versicolor was a selective degradation pattern, which would provide great implications for the bioavailability of bamboo timber.
J Xue, D Cui, M Zhou, J Cao
A comparison of methods – how to achieve a robust and conclusive durability classification of wood
2025 - IRG/WP 25-11063
…adjustment screws are examined and re-assessed through analysis of published data from comparative durability studies. In particular, the use of absolute and relative measures (i.e. x-values) for durability classification was addressed and the following conclusions were drawn from the analysis. The use of…
C Brischke
Multifactorial analysis of the reasons behind wood natural durability
2025 - IRG/WP 25-11065
…and wood characteristic using a principal component analysis. Interaction of wood with water were evaluated using contact angle measurements to determinate wood wettability by water and wood impregnability tests with water allowing to calculate relative humidity of wood under different condition and its…
L-F E Nkogo, M S M Mouendou, S Dumarçay, P E Engonga, F Zannini, E Gelhaye, P Gérardin
Durability and molecular analysis of fungal communities in wood exposed above ground
2025 - IRG/WP 25-11068
The objective of the study was to explore the durability of wood exposed above ground, comprising a wide diversity of wood species and treatments and extensive assessment data on wood durability in ongoing long-term testing. Larch species and Scots pine heartw…
N Högberg, D Panov, G Daniel, N Terziev
Detecting wood-decay fungi in walls: a non-destructive approach with an electronic nose
2025 - IRG/WP 25-11070
…Sensor responses were analysed using principal component analysis (PCA). The results demonstrated that decay-induced odour changes were distinguishable, with decayed and control specimens forming separate clusters in the PCA plot. However, in glass fibre-insulated models, some decayed samples overlapped with…
M Suzuki, T Miyauchi, S Isaji, R Naganawa
Physiological characterization of a key enzyme involved in gaseous COS assimilation in the filamentous fungus Trichoderma harzianum
2025 - IRG/WP 25-11072
…filamentous fungi have focused on the metabolism of major elements, such as carbon in the form of carbohydrates as an energy source and nitrogen as a relatively abundant cellular component. In contrast, trace nutrient elements such as sulphur have received far less attention, despite their physiological importance.…
R Iizuka, A Ono, T Suzuki, Y Katayama, M Yoshida
Functional Analysis of Cellobiose Dehydrogenase from the Saprotrophic Basidiomycete Coprinopsis cinerea
2025 - IRG/WP 25-11076
The plant saprophytic fungi including wood rotting fungi secrete various extracellular hydrolytic and oxidative enzymes to degrade wood cell wall. Among these, cellobiose dehydrogenase (CDH) is known as a flavoheme enzyme composed of a flavin domain with FAD a…
Y Sakka, A Hosaka, M Yoshida
From Wet to Preserved: Collecting Data of Waterlogged Wood Treated with PEG in Lanyan Museum and Study the Effect of Molecular Weight on Dimensional Stability
2025 - IRG/WP 25-11080
…interdisciplinary research gaps through literature analysis in order to obtain the preservation conditions for solidification of waterlogged archaeological wood using natural polymers.
K-L Huang, P-Y Kuo
Screening of fungi capable of degradation of β-aryl ether bond from lignin model compounds by using highly fluorescent-emitting detection
2025 - IRG/WP 25-11081
…were selected from 1407 samples in the fluorescence analysis. Based on the screening system with fluorescence and identification based on sequencing of the ITS4 and ITS5 region, Fusarium sp. and Cunninghamella sp. were classified as zygomycete, and have high fluorescent activity.
A Ishikawa, Y Mori, Y Ota, M Kiguchi
Real-time evaluation of connected in-ground termite stations in laboratory colonies of Coptotermes gestroi and Prorhinotermes sp.
2025 - IRG/WP 25-11082
…a marked preference for the neutral cartridges over wood. Analysis of the signals transmitted by the Novaterm® system reveals that, in the case of wood, variations in frequency density are low, resulting in smooth but moderate slopes on the frequency-time curves. In contrast, the neutral cartridges generate…
M Butin, F Chopinet, S Savriama, D Messaoudi
Characterization of zinc borate synthesized in laboratory and scaled-up study
2025 - IRG/WP 25-20730
…using Fourier Transform Infrared Spectroscopy (FTIR), elemental analysis and particle size distribution. Their effectiveness as fungicides when applied to wood was also evaluated. Some of the samples were subjected to leaching, as it is one of the most common problems with inorganic borates. All samples were…
Laffite, E Fernandez, C M Ibañez
Enhanced Flame Retardancy in Wood via In Situ Polymerization of Phosphorus-Containing Ionic Liquids
2025 - IRG/WP 25-20736
…wood (UW). The condensed-phase flame retardant mechanism analysis reveals that PIL-treated wood expands during heating, transitioning into wood foam with a linear expansion growth rate of up to 84%. This macroscopically manifests as an increase in wood pores, improving thermal and oxygen insulation, and thus…
J Jiang, Y Wu, J Luo, W Qu
Potential co-valorization of pyrolysis tars from five wood species form Tunisia as wood preservatives bases: Chemical compositions, antifungal and anti-termite activities
2025 - IRG/WP 25-20739
…for all species combined, followed by a detailed chemical analysis using Gas-Chromatography coupled with Mass Spectrometry (GC-MS) analysis and evaluation of their antifungal and anti-termite properties. The average yield of char and pyrolysis liquid was 27.00 % and 40.00 %, respectively. Chemical characterisation…
M T Elaieb, J Valette, E Kiény, L Pignolet, S Ghariani, K Candelier