Your search resulted in 1358 documents. Displaying 25 entries per page.
Determination procedure for wood preservatives in waste wood - statistics of sampling and analysis
1998 - IRG/WP 98-50121
…when waste wood is used. The results indicate that the methods used for sampling and analysis can be applied for a safe and reproducible identification of wood preservatives in single wood pieces and shreddered wood chips.
P Stolz, J Krooss, U Thurmarm, R-D Peek, H Giese
Modelling the service life of wood in ground contact – Verification of remotely sensed soil data from the reanalysis dataset ERA5-Land using in-situ measurements at a test site of utility poles in Eastern Norway
2024 - IRG/WP 24-41003
…moisture and temperature estimates from the 5th European reanalysis (ERA5-Land) dataset with in-situ measurements to assess the accuracy and applicability of ERA5-Land data for modelling the service life of wood in ground contact. The ERA5-Land soil temperature estimates showed a moderate correlation with the in-situ…
U Hundhausen, P B van Niekerk, B Marais
Changes in decay risk of wood in ground contact over Europe, from analysis of historic climate conditions
2024 - IRG/WP 24-41008
Changing climate conditions will affect global temperature and precipitation patterns, shifting some geographical areas into states that are more suitable for fungal wood decay. Climate normals, which are taken over a 30-year period, capture vast spatial and t…
P B van Niekerk, B N Marais, G Alfredsen, C Brischke
Analysis and performance of spruce alternative species and discarded wood for windows production
2024 - IRG/WP 24-50386
Climate change is having a significant impact on European forestry, particularly on the softwood species used for window frames. This study investigates potential replacement tree species for spruce (Picea abies), the predominant material for window frames. We…
B Lesar, J Levanič, M Humar, A Treu
A preliminary comparison of GC, HPLC and ELISA analysis of resin acids in pulp mill effluents
1997 - IRG/WP 97-20120
…process. Preliminary results showed good agreement for DHA analysis between the HPLC and GC methods. Since it analyzed for all the abietanes, ELISA measured a greater proportion of the resin acids in the samples than the HPLC. The merits and disadvantages of each method will be further discussed.
A N Serreqi, K Stark, Xiumei Feng, J N Saddler, C Breuil
Metabolite analysis of fungal COS degradation and phylogenetic investigation of COSase genes
2023 - IRG/WP 23-11018
…using the fungal genome database and its phylogenetic analysis. As a result, different patterns of sulfur metabolites were observed between COS and sulfate when they were used as the sulfur source, respectively. It was also found that COSase homology was widely patchy in fungi.
R Iizuka, S Hattori, I Ohtsu, D Hibbett, Y Katayama, M Yoshida
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
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
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
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
Life cycle analysis of utility poles. A Swiss case study
1995 - IRG/WP 95-50040-05
…possible environmental impacts using various aggregation methods. An evaluation was made for single poles as well as for whole transmission lines. The results show that impregnated roundwood utility poles in fact have certain environmental benefits when considered over their whole life cycle.
T Künniger, K Richter
The applicability of life cyle analysis and alternative methods in the wood preservation industry
1994 - IRG/WP 94-50023
…case studies have been performed using the life cycle analysis method (LCA). This type of research is aimed at an inventory and classification (sometimes including also evaluation) of the environmental impacts of a product, from the raw material to waste stage ("cradle to grave" approach). In a LCA each…
P Esser, J Cramer
Chemical analysis for TBTN in LOSP-treated wood and preservative fluids
1994 - IRG/WP 94-20027
…reduce molecular degradation both in-service and during analysis. It was considered necessary to check whether TBTO analysis methods were suitable for use on TBTN treated wood. Five analytical methods for TBTO in wood were applied to TBTN-treated pine sapwood, and evaluated for recovery, accuracy and precision. It…
D P Wraight, M J Kennedy
FTIR analysis of wood blocks decayed by brown-rot fungi
2020 - IRG/WP 20-10959
…was used as a comparison. Then, Fourier Transform Infrared analysis was carried out to monitor chemical changes of wood components. After extraction procedure, FTIR analysis was conducted again to obtain the spectra of extractives-free wood samples. IR spectra of mycelia were also recorded to identify bands other…
R Kondo, Y Horikawa, R Kose, M Yoshida
Analysis of larval development and feeding of an Anobiid beetle using X-ray computed tomography
2020 - IRG/WP 20-10961
…intervals of approximately 10 days from July 2019, and the analysis was based on the CT data until February 2020. The CT images clearly captured the silhouettes of the larvae, as well as parts of wood and frass. By registering the CT volume data obtained on different scanning dates, the movement of individual…
H Watanabe, R Kigawa, Y Fujiwara, Y Fujii
Profiling fungal degradation of Scots pine sapwood by short wave infrared hyperspectral image analysis
2020 - IRG/WP 20-20667
Hyperspectral image analysis of Scots pine sapwood wood affected by decay fungi has been carried out as part of a Ph.D. thesis within the project Remote Inspection of Wooden Utility Poles (RIWUP).
In a lab experiment, Petri-dishes with Scots pine sapwood samples on malt agar…
A Jochemsen, G Alfredsen, I Burud
Leaching from field test stakes. Results from two different methods of analysis
1993 - IRG/WP 93-50013
…results. This focuses on the importance of sampling and methods of analyses as well as the necessity of being careful when evaluating the results.
F G Evans, M-L Edlund
Chemical Analysis of Southern Pine Pole Stubs Sixty Months Following Treatment with a Methylisothiocyanate-Based Solid Fumigant Stick
2019 - IRG/WP 19-30740
…dazomet treatment. Future sampling and chemical analysis of the southern pine pole sections are planned to monitor long term efficacy of the fumigant treatments.
D J Herdman, T Pope, R R Browning
The use of image analysis to quantify soft rot decay
1992 - IRG/WP 92-2410
Image analysis techniques can provide quantitative information from visual images. As part of a wider interest in decay assessment methods we have investigated the application of image analysis techniques for quantifying soft rot decay by Chaetomium globosum in…
P J Wickens, R J Murphy
The extraction of boron from treated wood for quantitative analysis: A comparison of procedures
1992 - IRG/WP 92-2414
…rubberwood and scots pine samples was compared using methods based on refluxing and extraction in 1N NaOH or distilled water at 80°C. The extract solutions were analysed by Inductively Coupled Plasma spectroscopy (ICP/AES). A simple extraction procedure based on immersion of wood samples of approximate…
R J Murphy, D J Dickinson, P W McCormack, M K Lung
Analysis of hindgut bacterial phyla frequency and diversity in subterranean termites exposed to chitosan-treated wood
2017 - IRG/WP 17-10882
The termite hindgut contains a microbial community that symbiotically aids in digestion of lignocellulosic materials. For better understanding of the dynamics of the bacteria-termite relationship, a species survey of bacterial hindgut microbes in subterranean…
O Raji, J D Tang, T Telmadarrehei, D Jeremic
Nondestructive analysis of oviposition of the bamboo powderpost beetle Dinoderus minutus using acoustic emission and X-ray CT
2017 - IRG/WP 17-10889
…computed tomography (CT) was applied to the nondestructive analysis of the ovipositional behavior of adult D. minutus beetles inside bamboo pieces. Newly mated adult females were individually exposed to oviposition bamboo pieces prepared from culms of Phyllostachys bambusoides. AE measurement of the bamboo pieces…
H Watanabe, Y Yanase, Y Fujii
Use of small volume cups in XRF analysis of treated wood retention
2017 - IRG/WP 17-20602
Efforts are underway in the United States to improve the conformance of commercially-treated wood with the applicable retention standards. As part of an effort to devise a practical method for on-site assessment of within-charge retention variation, we investi…
R Stelzer, A Taylor, P Lebow
Analysis of Wood Industrial Pollutants Based on Emission Coefficients
2017 - IRG/WP 17-50325
Accurate calculation and estimation pollutants is one of the basic tasks of environmental protection .The low carbon economy put forward However,low carbon economy data of wood industry is lack. The paper research on emissions and pollution of Chinese wood…
Chu Jie, Ma Ji, Zhangjing Chen
NGS analysis of fungal OTUs in Aquilaria sp. from French Guyana, Cambodia, Laos and Thailand
2017 - IRG/WP 17-50328
Aquilaria is a tree species belonging to the Thymeleaceae family. When Aquilaria sp. is injured, it produce agarwood. Agarwood is characterized by a darker wood colour than the healthy one and by a strong perfume that is much esteemed by perfumers and some ori…
C Zaremski, C Malandain, O Sibourg, C Andary, G Michaloud, M Ducousso, N Amusant, A Zaremski