In this study, the effect of soluble chitosan, thyme oil and linseed oil on the mold resistance of wood and its surface properties was investigated. Both low and medium molecular weight chitosan with concentration of 1 and 2% were used. Cypress wood samples with dimensions of 20 × 20 × 70 mm and moisture content of 12% were saturated by the preservatives. The results showed that the maximum abs...

Policies are being developed worldwide to increase bioenergy production as a substitution for fossil fuel to mitigate fossil fuelderived carbon dioxide emissions, the main cause of anthropogenic global climate change4,5. However, the capacity for forest sector bioenergy production to offset carbon dioxide emissions is limited by fossil fuel emissions from this activity (harvest, transport, and ...

Increasing use of forest fuels for energy production is generating increasing quantities of wood ash. A common understanding is that this ash should be spread in forests to counteract soil acidifi cation and potential future nutrient defi ciencies, and thus help sustain longterm forest productivity. A series of seven fi eld experiments was established in Sweden in 1988–1995 to study the stem gr...

the major objectives of this study were to find out the mechanism behind the sapstaining fungal hyphae penetration into wood elements using electron microscope and to evaluate the exact role of phenolic compounds existing in wood vinegar towards the sapstaining fungal growth inhibition. to formulate the new environmental friendly wood preservative, we neutralized (to ph 7) wood vinegar with nao...

Residual and end-life products are a major hazard on the environment. Many researchers have considered waste as partial replacement of some construction materials to reduce their environmental ecological problems. This kind practices can be an important option for protection Wood shavings saw dust byproduct lumber industry. They made from timber that's been sawn into planks in mills almost ever...

A simulation model of a log transport logistics network was developed. The model could be structured to either share truck capacity among a group of loggers, or to assign a fixed number of trucks to individual loggers. Another variation of the model allowed the use of a staging yard to set out loaded trailers and deliver them to destinations using dedicated shuttle trucks that operated continuo...

Applying renormalization group theory to evaluate the safety of overall structure, local damage probability must be obtained at first. According to the results of unit detection test and numerical simulation, the methods how to determine local damage probability was presented in the paper. For small unit, meaning the unit size is far less than the maximum primitive cell or the structure size, i...

There is increasing interest worldwide regarding managing plantation forests in a manner that maintains or improves timber production, enhances ecosystem services, and promotes long-term sustainability of forest resources. We selected the Gan River Basin, the largest catchment of Poyang Lake and a region with a typical plantation distribution in South China, as the study region. We evaluated an...

The wood micro cellular structural constituents of five lesser used wood species in Nigeria among which are Butyrospermum paradoxum, Albizia zygia, Lanea acida, Parkia felicoida and Isoberlina doka are determined. Fibre cells accounts for 54% of the total wood micro cellular constituents of B. paradoxum while vessel, axial and ray parenchyma cells make up the rest of the wood micro structural c...