Your search resulted in 1506 documents. Displaying 25 entries per page.
Use of Acoustic Emission (AE) to detect activity of common European dry-woodboring insects: some practical considerations
2013 - IRG/WP 13-10803
…lower than 10 °C, it is recommended that decisive assessments using AE for detection of activity of these dry-woodboring insects should be done at (wood) temperatures of 10 °C or higher.
J G M Creemers
Acoustic technique for assessing decay in preservative treated wood
1998 - IRG/WP 98-20138
This study investigated the suitability of vibration techniques to assess the performance of wood preservatives in ground contact. Small stakes (10 x 5 x 100 mm3) of treated and untreated Scots pine sapwood were exposed to decay in lab-scale terrestrial ecosys…
L Machek, M-L Edlund, R Sierra-Alvarez, H Millitz
Make ready of a detection system for insect attack by acoustical method
1996 - IRG/WP 96-10183
A contract CRAFT of European research allowed to build a detector prototype able to diagnose on site the presence of Hylotrupes bajulus and termites, even during the first stages of infestation when no sign of activity is visible. Based on non destructive cont…
M Hyvernaud, F Wiest, M-M Serment, M Angulo, O Winkel
Nondestructive analysis of oviposition of the bamboo powderpost beetle Dinoderus minutus using acoustic emission and X-ray CT
2017 - IRG/WP 17-10889
The bamboo powderpost beetle Dinoderus minutus is a major pest of dry bamboo culms in Japan. In this study, acoustic emission (AE) and X-ray computed tomography (CT) was applied to the nondestructive analysis of the ovipositional behavior of adult D. minutus b…
H Watanabe, Y Yanase, Y Fujii
A Long-term Observation of Termite Activity in The Nest by Continuous Acoustic Emission (AE) Monitoring
2003 - IRG/WP 03-20280
In order to evaluate the influence of temperature on the termite activity, acoustic emission (AE) monitoring was applied to two nests of Coptotermes formosanus SHIRAKI; a nest in the stem of a standing tree and a nest in the underground of a wooden house, resp…
Y Yanase, Y Fujii, S Okumura, T Yoshimura, Y Imamura
Detection of Termite Attack to Wood Stakes in a Monitoring Station Using Ceramic Gas Sensors and Acoustic Emission (AE) Sensor
2003 - IRG/WP 03-20271
To evaluate the termite activity in monitoring stations non-destructively, metabolic gas from termites and acoustic emission generated by feeding of termites were measured. Ten cylindrical stations with small wood stakes of Japanese red pine (Pinus densiflora)…
Y Yanase, Y Fujii, S Okumura, T Yoshimura, Y Imamura, T Maekawa, K Suzuki
Ability of an acoustic inspection device to detect internal voids
in untreated pole sections
2002 - IRG/WP 02-20246
Detecting deterioration before substantial losses in material properties occur poses a major challenge to most wood users. While physical inspection techniques such as drilling or coring are useful, these methods can miss small pockets of damage and they lack…
J J Morrell, R G Rhatigan
Feasibility of termite control using crushed cement-stabilized sludge (Polynite) as a physical barrier and acoustic emission (AE) monitoring
2000 - IRG/WP 00-10381
In Japan, the damages by the subterranean termites (Coptotermes formosanus Shiraki and Reticulitermes speratus Kolbe) are more common. Recently, the more attention is paid to the methods of the termite controls of less- or non-chemical. As one of the non- chem…
Y Yanase, M Shibata, Y Fujii, S Okumura, K Iwamoto, T Nogiwa, T Yoshimura, Y Imamura
Detection of Acoustic Emission (AE) generated by termite attack in a wooden house
1999 - IRG/WP 99-20166
Recently, considerable attention has been paid to methods for termite control, which involves few or no chemicals. To reduce the amount of termiticide needed, it is necessary to detect termite attack in wood as early as possible. The feasibility of acoustic em…
Y Fujii, Y Yanase, T Yoshimura, Y Imamura, S Okumura, M Kozaki
Control of termite attack using a trapping method and acoustic emission (AE) monitoring a case study at an electric power plant
1997 - IRG/WP 97-10224
To prevent subterranean termites (Coptotermes formosanus Shiraki and Reticulitermes speratus Kolbe) from invading the buildings of an electric power plant and to control their attack, artificial traps were buried around the buildings. The attack of the termite…
Y Fujii, Y Imamura, E Iwatsubo, S Yamamoto
Feasibility of AE (Acoustic Emission) monitoring for the detection of the activities of wood-destroying insects
1992 - IRG/WP 92-2416
The feasibility of acoustic emission (AE) as a nondestructive testing method for the detection of the wood destroying insects was investigated. AEs were detected from the wood specimens under feeding attack of sugi bark borers or powder-post beetles. However,…
Y Fujii, Y Imamura, E Shibata, M Noguchi
Detection of termite attack in wood using acoustic emission
1989 - IRG/WP 2331
Acoustic emission (AE) is the elastic wave produced by the strain energy released in the process of fracture of a material and propagates through it. The object of this report is to detect AEs produced by the termite activities and to evaluate the possibility…
Y Fujii, M Noguchi, Y Imamura, M Tokoro
Acoustic communication between Microcerotermes crassus Snyder
1982 - IRG/WP 1158
An unusual acoustic communication within a nest of Microcerotermes crassus SNYDER is reported. The signals produced by the termites are described and possible reasons for this behavior are considered.
U Kny
Non-destructive methods for field assessment of wood biodeterioration in hardwood trailer decks exposed to tropical environments
2025 - IRG/WP 25-41039
…penetration test. The results were compared with visual assessment based on the American Wood Protection Association (AWPA) standard. The results indicate that decay was the main factor contributing to the deterioration of the trailer deck boards at the tropical test site. Visual assessments showed that both…
X Wang, X Xie, G Kirker, C A Senalik
Application of an Ultrasound-based Instrument to Evaluate Condition of Drywood Termite Infested Timber Components
2022 - IRG/WP 22-11000
…produced from the characterization of the ultrasound waves assessment results.
S Fauziyyah, L Karlinasari, D Nandika, R Wimmer
Structural health assessment of wood - A comparison of methods for determining the spatial spread of fungal infestation in beams and rafters
2025 - IRG/WP 25-11051
Wood decay in buildings can cause severe economic losses, require comprehensive refurbishment, and removal of decayed wooden elements from the building. The latter aims at restoring the structural integrity of the component or the entire building through repla…
C Brischke, N Sommerfeld, E Flohr, A K Mayer, S Bollmus
Durability and molecular analysis of fungal communities in wood exposed above ground
2025 - IRG/WP 25-11068
…diversity of wood species and treatments and extensive assessment data on wood durability in ongoing long-term testing. Larch species and Scots pine heartwood, two tropical species ntholo and ncurri and a number of treated wood by copper-based formulations and alternatives (silanes, spiroborate esters, epoxidized…
N Högberg, D Panov, G Daniel, N Terziev
Evaluating the Efficacy of Arnica Extract-Based Termiticide from Berkem Biosolutions® in Subterranean Termite Control: A Comprehensive Laboratory and Four-Year Field Study
2025 - IRG/WP 25-20731
…in both laboratory and field conditions. The laboratory assessments utilised “the Bottle H” test unit, adhering to the Japan Wood Preservation Association (JWPA) standard JWPAS-TS-(1) 2018 with Coptotermes gestroi as the test species. The results showed that there was no termite penetration in all treated-soil…
D Messaoudi, S Khoirul Himmi, D Tarmadi, I Guswenrivo, S Yusuf
Relationship between changes inside moisture content of wood measured using temperature and humidity sensors and swelling and shrinkage
2025 - IRG/WP 25-41030
…member is one of the useful methods for periodic health assessment of timber buildings. The aim of this research is to establish an easy estimation method of the local inside moisture content. In this study, the local inside moisture content of specimens of different lengths and densities were measured in order to…
Y Sadakane, T Mori
Bio-Based but Toxic? The Neglected Ecotoxicity of Leachates from Wood Preservatives—A mini-review
2025 - IRG/WP 25-50403
…potential. However, there is a very significant gap in the assessment of the ecotoxicity of these compounds if used as wood preservatives, due to the general perception of natural compounds not being toxic. While standards for testing wood durability are usually followed by researchers to assess the effectiveness of…
A Barbero-Lopez, A Haapala
WoodStock: Empowering climate-smart, circular, and zero-waste use of underutilized wood from the forest and building stock in the construction sector to support the New European Bauhaus
2025 - IRG/WP 25-50405
…This also entails a robust dynamic Life Cycle Assessment (LCA) methodology for the assessment of environmental, social, and economic impacts associated with various resource streams and scenarios. WoodStock will tap into collective expertise to develop zero-waste and circular building designs, harnessing…
L De Ligne, J Van Acker, J Van den Bulcke
Hyperspectral imaging in qualitative and quantitative assessment of biocide treated timber
2025 - IRG/WP 25-50407
A hyperspectral camera operating in the shortwave infrared light range between 1000 – 2500 nm was used to collect spectral profiles of timber treated with different biocides and varying concentrations of a copper-ethanolamine based wood preservative. The spe…
J Levanič, E Keržič, B Lesar, M Humar
Laboratory and field evaluations of bio-based termiticide containing Arnica extract from Berkem Biosolutions® against native and Formosan subterranean termites
2024 - IRG/WP 24-11049
…termites in Louisiana, US. The wood protection assessment was performed in accordance with the laboratory American Wood Protection Association (AWPA) Standard, AWPA E1-17 choice and no-choice test using Formosan subterranean termite (Coptotermes formosanus). The soil treatment assessment was conducted at…
D Messaoudi, J Curole, Q Wu
International joint field trial on the moisture performance of wood – Set up and first results
2024 - IRG/WP 24-40996
…emphasized as a durability factor, both in the assessment of durability as a material property and within the context of durability-focused design principles. This international joint field trial was designed to provide a comprehensive comparison of different laboratory-based test variables and their…
C Brischke, et al. (33 co-authors)
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
…use of atmospheric variables. Although a visual assessment showed that the ERA5-land soil moisture estimates closely matched those of the in-situ data, statistical analysis revealed only a weak correlation between the soil moisture estimates and the in-situ measurements (Spearman’s ρ of 0.21). Compared…
U Hundhausen, P B van Niekerk, B Marais