Your search resulted in 418 documents. Displaying 25 entries per page.
Discovering anti-fungal agents in New Zealand native plants for use in wood protection
2009 - IRG/WP 09-10692
Extracts from Hinau (Elaeocarpus dentatus) leaves were tested in the laboratory for antifungal activity. In addition, the anatomical structure of the leaf was also examined by a combination of light and scanning electron microscopy. Chemical characterisation of the extracts and investigation into potential use of its components for wood protection is underway. A combination of light microscopy (...
C Rickard, T Singh, A Singh, R Newman
Antinomic natural self-protection mechanism in long-lasting woods: a case study with three tropical species from French Guiana
2009 - IRG/WP 09-10696
We demonstrate in this work through 3 examples that Amazonian trees may specialize long-lasting woods by means of at least to different approaches. Wallaba impregnates its wood with large amounts of weakly antifungal compounds acting in synergy, while tatajuba and louro vermelho woods are naturally impregnated with antifungal agents. Comparison of biological activities in vitro and concentrations ...
A Rodrigues, M Royer, N Amusant, J Beauchêne, G Herbette, V Eparvier, A Thibaut, L Salmen Espíndola, B Thibaut, D Stien
The Present Situation and Future Development in Quality Assurance for Wood Protection in China
2009 - IRG/WP 09-20418
This paper provides a comprehensive review of the quality assurance program for wood protection industry in China in term of guiding policies, standardization and implementation activities. The potential deficiencies with the existing practices regarding to the quality of wood protection products and suggestions for the further research and development directions to improve the system are also dis...
Kang Hua Cheng
Potential synergy between natural product extracts for limiting fungal decay
2009 - IRG/WP 09-30495
Natural products often exhibit tremendous potential for inhibiting various microorganisms when they are tested in petri dish tests, but perform poorly when tested in vivo. The failures can often be attributed to a lack of broad spectrum activity against the range of organisms present in a natural environment. One method for overcoming this challenge is to use extracts from a number of sources with...
M Maoz, C Freitag, J J Morrell
Potential of antifungal and antitermitic activity of several essential oils
2009 - IRG/WP 09-30515
In the recent years, there has been an increasing concern regarding the safety of wood preservatives. Many research groups have examined the potential of essential oils as biocide based on their biological activity. This paper described the antitermitic and antifungal activity of twenty four essential oils from different plant species. The termicidal activity was carried out with a no-choice test...
N Amusant, M-F Thévenon, N Leménager, E Wozniak
Biological Treatment to Improve Wood Product Quality and Durability - Fifteen Years of Effort and Experience at FPInnovations-Forintek Division
2009 - IRG/WP 09-40444
Wood plays an important role in the world economy. However, wood is subject to attack from wood-degrading fungi and insects and durability and quality of wood products are becoming increasing concerns for consumers. Development of effective and low environmental impact technologies to improve wood product quality and durability will be required to address these concerns. The application of a bio...
Dian-Qing Yang
Which are the best painting methods for the beech wood products protection?
2009 - IRG/WP 09-40477
Beech wood (Fagus Sylvatica L.) is one of the most important species of the wood in Kosovo. About 33% of the trees in our country are beech wood. The wood products in Kosovo are from the beech wood. The color difference between red heart wood and white wood of the beech is significant. The main problem for the wood companies in our country is that they haven’t adequate protection against weather...
A Bajraktari
Future Directions in Wood and Engineered Wood Products Research in China
2009 - IRG/WP 09-40479
This paper has summarized the research advance of basic wood science and engineered wood products in the 20th century in China and introduced the research advance and directions of basic wood science, engineered wood products and the extensive researches based on the basic wood science such as wood chemical rheology, wood fractal analysis, wood environmental science and nano-wood material etc in t...
Guangjie Zhao
Protection mechanisms of modified wood against decay by white and brown rot fungi
2010 - IRG/WP 10-10713
The resistance of beech and pine wood blocks treated with 1,3-dimethylol-4,5-dihydroxyethylene urea (DMDHEU) against T. versicolor and C. puteana increased with increasing WPG. Full protection (mass loss below 3%) was reached at WPGs of approximately 15% (beech) and 10% (pine). Metabolic activity of the fungi in the wood blocks was assessed as heat or energy production determined by isothermal mic...
C Mai, P Verma, Yanjun Xie, J Dyckmans, H Militz
Methods for Studying Penetration Depth of Wood Protection Products
2010 - IRG/WP 10-20432
EN 152 is an accepted standard in Europe for measuring how deep a wood protection product penetrates into the surface of treated pine wood. The method has provided consumers with a wide assortment of products that meet the specifications outlined in the standard. Because the test takes 8 or more months to carry out, artificial ageing procedures have evolved in order to standardize and speed up the...
K Hansen, L Sites, D D Nicholas
Drying Rates and Mold Growth on Various Building Materials under Different Environmental Conditions
2010 - IRG/WP 10-20454
Mold growth on building materials is a major problem for homeowners. The most suitable method to control mold growth on building materials is to utilize design features, construction tools and practices that prevent moisture accumulation, and keep the wood as dry as possible. In order to achieve this, engineers and homebuilders have to know the effects of various temperature and moisture conditi...
Dian-Qing Yang
Comparison of Bifenthrin Formulations for Their Skin and Eye Irritation Potential Using the Pollen Tube Growth Test
2010 - IRG/WP 10-30521
The Pollen Tube Growth Test (PTGT) is an effective screening method for measuring the potential of a chemical formulation to affect living cells. The PTGT has been compared against other types of testing, and it shows a good correlation with, for example, the Draize rabbit eye test and the human skin patch assay. It measures the EC50, which is the effective concentration at which 50% growth is o...
S Millward, P Lobb
Laboratory evaluation of borate amine: Copper derivatives in wood for fungal decay
2010 - IRG/WP 10-30543
The aims of this study were to evaluate borate: amine: copper derivatives in wood for fungal decay protection as well as the permanence of copper and boron in wood. Wood treated with each of four derivatives of borate:amine:copper prevented fungal decay. Disodium tetraborate ecahydrate (Borax):amine:copper derivatives with retentions of 0.61 to 0.63% after water leaching prevented decay by Gloeo...
G Chen
Natural compounds: A review of their use for wood protection
2010 - IRG/WP 10-30545
A lot of research in the field of wood protection has focused on natural compounds but very few of these have been implemented by industry. This review is an attempt to bring together information from selected area of work:
- A brief review of the work done on natural products as organic biocides for wood protection.
- Table containing information on natural products, their use as organic biocid...
T Singh, A P Singh
Using plant oils as hydrophobic substances for wood protection
2010 - IRG/WP 10-30550
The increased interest to use oils as hydrophobic agents and the current debate about the further use of creosote emphasises the urgent need of better understanding of plant and other oils as wood protectors. The present study sheds light on the hydrophobic properties and distribution of various plant oils in the anatomical structure of Scots pine sapwood. Oil retentions from approximately 70 to 5...
D Panov, N Terziev, G Daniel
Analysis of phenolic extractives from various Tunisian species trees -Study of its potential valorisation
2010 - IRG/WP 10-30552
Phenol extractives are naturally synthesized compounds taken from several trees. It is well demonstrated that the presence of phenol compounds is positively correlated with the durability of wood. This property is very interesting for outdoor uses of wood with a limited treatment. Phenol compounds may also be used in the formulation of glue. In the aim to improve the knowledge on Mediterranean tr...
I Oueslati, F Charrier, K Seffah, A Moubarik, N Ayed, A Zerizer, B Charrier
Chemical protection of historic timber structures: Results and future needs
2010 - IRG/WP 10-40487
The paper concentrates on the analysis of the effectiveness of chemical protection for timber structures in the Russian State Museums “Kizhi” (Karelia) and “Vitoslavlitsy” (Novgorod).
The condition of historic timber was tested at the monuments treated with PCP, borax, potassium carbonate, boric acid, Pinotex chemicals in the 1970-80. Long-term analysis revealed that in many cases the...
M Kisternaya, V Kozlov
Sorption properties of wood impregnated with aqueous solution of boric acid and montan wax emulsion
2010 - IRG/WP 10-40492
Non-biocidal techniques for wood protection become more and more important, nowadays. One of the possible treatments is use of water repellents. In the present research influence of, one of the possible water repellent, the montan wax emulsion, on the moisturizing and the sorption characteristic of impregnated wood was investigated. To achieve a better protection against wood decay fungi, montan w...
B Lesar, M Humar
Wood Protection in Croatia – Situation from the Acquisition of Independence till Today
2010 - IRG/WP 10-40501
In the last eighteen years in Croatian wood-working industry, respectively wood protection industry, many good changes happened. In such a short period of time Croatian industry changed their “product philosophy”. After the fatherland war and acquisition of independence the most logs and sawn wood products have been exported from Croatia. With such “kind of philosophy” Croatian wood-workin...
R Despot, M Hasan
Wood protection by means of electro osmotic pulsing technology (PLEOT)
2010 - IRG/WP 10-40505
Wood protection is mainly based on chemical protection of wood. The disposal of wood preservative treated material causes restrictions in its later use or recirculation into the eco-cycle. A new protective system, electro-osmotic pulsing technology on wood, called PLEOT, is tested in a fungi test and in soil contact. Mass loss and moisture content of Scots pine sapwood samples was calculated after...
A Treu, E Larnøy
Ecological methods and products for wood protection used for restoration and conservation of built heritage cultural assets to increase natural durability and duration of exposure in open air museums
2010 - IRG/WP 10-40506
Wood is a perishable material, hygroscopic and fuel, which cause attention to selecting the wood species that is going to be exhibited in relation to humidity and soil. With variable depending on its humidity and moisture from the atmosphere or soil, wood is a good living environment for fungi and insects, but suffer biodegradation processes and dimensional changes. Observations over time on wood ...
M Pruna, D Purice, D Dumitru Copacean
Climate change and wood protection, increasing demand of long life wood products and decreasing production of treated wood
2010 - IRG/WP 10-50269
Several new topics related to wood protection sector has appeared in Japan, as the awareness of climate change becomes bigger and bigger. The “Basic act for housing (2006)” and the “Long-life housing promotion act (2009)” were enforced to form a safe and high quality housing stock and to form a long-service-life housing respectively. Despite of the favorable background for wood protection ...
K Yamamoto, H Kato
Towards designing eco-friendly buildings with in-built termite protection
2010 - IRG/WP 10-50273
The increase in greenhouse gases, leading to global warming, is considered by a consistent scientific worldview not due to natural variation, but due to the growing concentration of carbon dioxide (CO2), methane (CH4) and other atmospheric pollutants. Global emissions of carbon dioxide from fossil fuel combustion and cement production rose from 22.6 billion tons in 1990 to an estimated 31.2 billio...
J R J French, B M Ahmed Shiday, B Maggiolo, D Maggiolo
Chapter 5 - Nursing of bamboo
2007 - IRG/WP 07-10635-05
In this chapter various procedures and steps of nursing of
bamboo have been described with introduction, methodologies,
examples and photographs. The propagation, improvement and
sustainable growth of bamboo are possible through proper
nursing of bamboo. The nursing of bamboo includes proper
felling or extraction, fertilization and earth filling, protection
from diseases and injuries, silvic...
A K Lahiry
Theoretic discussion on the way and driving forces of moisture migration in wood during vacuum drying
2011 - IRG/WP 10-40538
Most of parameters in conventional drying cannot explain a lot of phenomena appeared in vacuum condition, so it is necessary to further explore the moisture migration way and driving forces in wood under vacuum condition. For the water movement channel in wood is very narrow, the characteristic of heat and mass transfer in wood is similar to that in microscale. This article applies theory of liqui...
Zhengbin He, Xueli Yao, Liqiong Chen, Songlin Yi