Your search resulted in 694 documents. Displaying 25 entries per page.
The cellulose binding mechanism of a novel cellulose binding domain from the brown-rot fungus Gloeophyllum trabeum
2023 - IRG/WP 23-11021
…cellulose degradation by CBH. From the results of genetic analysis, it have been known that almost brown-rot fungi lack CBM1. In our previous study, however, it was found that uncharacterized C-terminal domain in a lytic polysaccharide monooxygenase from the brown-rot fungus Gloeophyllum trabeum had binding ability…
M Aoki, Y Kojima, M Wada, M Yoshida
Comparison of culturable fungi found on two types of modified wood cladding
2023 - IRG/WP 23-11025
…were identified from both buildings. Microscopic analysis of fungal material on each type of wood showed hyphae and yeast cells associated with one another in an amorphous matrix of dark-pigmented material. Future investigation of the physiological characteristics of the isolated strains could provide…
G Presley, J Cappellazzi, B Held, R Blanchette
Analytical retentions of active ingredients in H2F treated framing over a 12-year period
2023 - IRG/WP 23-20702
The H2F hazard class in Australia was developed to treat internal framing timber with a surface application of an insecticide, to control mainly termites. Two of the actives approved in AS 1604.1-2010 (and subsequent revisions) for this hazard class are bifen…
A Siraa
Simulations of microclimates for wood-decaying fungi in the built environment using environmental analysis
2023 - IRG/WP 23-20703
Simulations of fungal decay risk were run on two similar building geometries exposed to typical annual climate conditions of two different geographical locations, Brunswick (Germany) and Cairns (Australia). The simulations were conducted to capture the effect…
P B van Niekerk, J Niklewski, S H Hosseini, B N Marais, I Frimannslund, T Kringlebotn Thiis, C Brischke
Tall oil in combination with eugenol for wood protection
2023 - IRG/WP 23-30787
…based on both uptake (approx. 600 l/m3) and penetration analysis using FT-IR.
Addition of tall oil was hypothesized to decrease leaching of eugenol. However, the addition of methanol (for viscosity and retention decreasing purposes) probably induced some evaporation of eugenol already during the drying step…
R Ringman, M Westin
The influence of chemical and thermal modification on homogeneity between sapwood, heartwood, and transition wood of short rotation teak
2023 - IRG/WP 23-40961
…by Fourier Transform Infrared Spectroscopy (FT-IR) analysis. The retentions values for furfurylation treatment were higher than that of GMA-thermal treatment. Sapwood presented the highest mass change, moreover both the transition and the heartwood were similar in the value after furfurylation and GMA-thermal…
R Martha, B George, W Darmawan, P Gerardin
Investigating wood anatomical factors influencing the treatability of refractory southern pine- an imaging approach
2023 - IRG/WP 23-40975
Southern pine sapwood is non-durable, and preservative treatment is necessary to protect it against biological degradation. According to AS 1604.1 2021, timber products must have their sapwood fully treated with preservatives for various applications and hazar…
M Shirmohammadi, M R Karbaschi, B Hassan, W Leggate
The appropriateness of central one-ninth or core retentions as a means of demonstrating penetration compliance
2023 - IRG/WP 23-40976
…forward, assuming that an analytical method exists for the analysis of the preservative active ingredient(s) in question. Traditionally the penetration of preservatives has been assessed visually, either through being able to distinguish treated from untreated areas, e.g. as in the case of creosote, or through the…
D Humphfrey, B Skewes
Multi-scale Experimental Study on Self-sustained Smouldering of CCA-treated Timber Poles
2023 - IRG/WP 23-40988
…in the laboratory or field. Small-scale thermogravimetric analysis (TGA) and bench-scale smouldering experiments were used to establish a multi-scale test methodology for quantitatively assessing the smouldering combustion in treated timber. Smouldering propagation rates and kinetic parameters were established to…
W Wu, L Yerman, J J Morrell, F Wiesner
Optimization of furfurylic alcohol/tannin ratio to improve the performance of biosourced thermoset resins for wood protection
2023 - IRG/WP 23-40994
…a treatment resistant to leaching and decay. Thermal analysis shows that treatments with tannin or furfuryl alcohol alone or mixture of both chemicals improve thermal resistance of treated wood compared to untreated wood.
E Azadeh, A Pizzi, P Gérardin, C Gérardin-Charbonnier
Enhanced durability of bio-based materials for green building
2023 - IRG/WP 23-50382
…of the bio-economy and a fit-for-purpose strategy, a SWOT analysis allows to focus on the many opportunities for enhanced durability of bio-based building products.
J Van Acker, L De Ligne, J Vand den Bulcke
Assessment of the condition of wooden mill in the area of Kovačevići in Bosnia and Herzegovina
2023 - IRG/WP 23-11030
…this region was cut off from electricity. The laboratory analysis revealed that the respective mill was made of chestnut (Castanea sativa) and oak (Quercus sp.) wood. The sufficient durability of the respective wood species resulted in the good structural integrity of the mill. The surface of the wood materials in…
B Lesar, R Hasanagic, M Humar
Changes in topochemistry and mechanical properties of Beech (Fagus orientalis L.) by natural fungus infestation
2022 - IRG/WP 22-10986
…in the region of the S3 and the S2 layers. HPLC analysis illustrated that catechin was the main component both in sound and infested beech wood. Considerable reductions in the mechanical strengths, bending properties and compression strength, were also apparent due to infestation.
H Sivrikaya, M Rehbein, F Divos, S Adamopoulos, R Hosseinpourpia
Protection of Venetian pilings from marine borers
2022 - IRG/WP 22-10995
…compatibility.
Ecotoxicological assessment and risk analysis must represent the main criteria for the admissibility of a material as they regard the health of the organisms and, consequently, direct threats to the ecosystem. The durability of a material or a manufact, has reflections on economic…
D Tagliapietra
Measurement of copper concentration in Cu-HDO treating solutions by handheld XRF
2022 - IRG/WP 22-20685
…Plus XRF Analyzer. Atomic absorption spectrophotometry (AAS) was used as a reference method. The major advantages of portable handheld XRF spectrometry include: on-site immediate availability of analytical results, non-destructive analysis, a multielement capability, speed of operation and access to…
P O Flaete
Discrimination of five commercial wood preservatives by handheld near-infrared spectrometers and Multivariate Data Analysis
2022 - IRG/WP 22-20686
…low-cost handheld NIR spectrometer, and multivariate data analysis (MDA). Spectra was obtained on solid maritime pine (Pinus pinaster) wood impregnated with 5 different commercial preservatives at 3 different concentration levels (50, 70, 100%). Two classification methodologies were used: PLS-DA, and SVM-DA.…
M Rubini, P Dulucq, B Charrier
Chemotaxonomy of the genus Aquilaria (Thymelaeaceae)
2022 - IRG/WP 22-20687
…constitutes a chemical marker for this genus. Comparative analysis of these phenolic molecules can therefore be very useful when seeking chemotaxonomic markers.
C Zaremski, N Amusant, C Andary, M Ducousso, S Hul, G Michaloud, A Zaremski
Analysis of wooden shingles after seven years of exposure
2022 - IRG/WP 22-20690
Wood is a traditional roofing material in the Alpine regions. In the 17th century, wooden roofing was typically used on more important buildings. Still, today it is predominately used on huts and houses in the hilly regions of northern and north-western Sloven…
M Humar, B Lesar, D Kržišnik, E Keržič, B Jemec
Impregnation of wood with antifungal compounds from low-quality tree biomass
2022 - IRG/WP 22-30763
…spectrophotometrically and with chromatographic analysis. Further on, purified stilbenes and flavonoids were prepared for the antifungal assay. The extracts were colorimetrically analyzed on antioxidant properties by measuring free radical scavenging activity. The resistance of with extractives impregnated…
V Vek, I Poljanšek, A Balzano, M Humar, P Oven
Green approach in wood mineralization for improvement of fire properties
2022 - IRG/WP 22-30769
…of mineralized wood determined by thermogravimetric analysis indicates improved fire performance of such material.
A Pondelak, R Repič, L Škrlep, N Knez, F Knez, A S Škapin
Acetylation of pine wood in Uruguay
2022 - IRG/WP 22-40927
…wood and the reactives, Fourier transform infrared (FTIR) analysis was carried out. Finally, dimensional stability was evaluated. Pinus taeda presented the highest weight percent gain, while dimensional stability improved for both species.
C M Ibáñez, L Castillo
Molecular dynamics investigation of wood modification with furfuryl alcohol
2022 - IRG/WP 22-40931
…with FA than lignin model. The hydrogen bonding analysis demonstrated that the lifetime of hydrogen bonds involved between cellulose-FA and lignin-FA exhibit similar values which facilitate same interaction. The principal component analysis demonstrated that lignin undergoes a large motion in term of…
V Ponnuchamy, J Sandak, A Sandak
Moisture sorption behaviour of poplar and thermally modified poplar using dynamic vapour sorption (DVS)
2022 - IRG/WP 22-40947
…the inappropriacy of only using powder samples for DVS analysis.
X Jiang, J Van den Bulcke, L De Boever, M Minsart, A Mignon, J Van Acker
A Comparison of Cross-Laminated Timber (CLT) Floor Panels using Finite Element Analysis and Experimental Fire Testing
2022 - IRG/WP 22-40955
…of FE results with experimental results showed that the FE analysis gave reasonably accurate results to allow for the development of full-scale computational models of a prototype CLT building.
M Yasir, A Macilwraith, K Ruane
A new project - Circular use of wood in Norway for improved sustainability and innovation (CircWOOD)
2022 - IRG/WP 22-50369
…by using the latest methods for digital collection, analysis and sharing of data. In addition, the project will address the underlying political frameworks and study the economic impact they have. CircWOOD is an integral part of the Norwegian Green platform project sirkTRE that aims to lift the wood industry…
L Ross, L Huang, E Trømborg, R Modaresi, H Sjøli, C A S Hill