Aim of study: The possibilities using oak and beech wood wastes used in the cultivation Lentinus edodes fungus production pcl biocomposite film material were investigated. Material methods: mushroom was subjected to 2 harvest periods both lignocellulosic waste types equal degradation times obtained. Chemical contents degraded fibers determined. Then, effect produced 15% 30% raw on mechanical pr...

In spite of many alternative materials like iron, plastic, and concrete, which can be used instead of solid wood in different areas, wood remains superior as a natural engineering material. Due to depletion of forest resources, forest products industries are faced with a crisis in obtaining suitable raw materials in suffi cient amount. Therefore, layered composite materials like vertically and ...

in the present study, different activated carbons were prepared from carbonized african beech wood sawdust by potassium hydroxide activation. the activated carbons were characterized by brunauer–emmett–teller, scanning electron microscope, fourier transform infrared spectroscopy, and thermogravimetric analyzer. the phenol adsorption capacity of the prepared carbons was evaluated. the different ...

the aim of this study was to determine the optimal cutting cycle in an uneven-aged beech forest in the north of iran. first of all, a logistic growth model was determined for an uneven aged forest. then, the stumpage price was predicted via an autoregressive model. the average stumpage price of beech was derived from actual timber, round wood, fire and pulpwood prices at road side minus the var...

We monitored 15 radio-collared raccoons (Procyon lotor) on Davies Island in March 1987 May 1988 to determine the extent to which individual tree attributes or spatial configuration of plant associations (habitat types) across the landscape influenced den use. Of 1091 verified den sites, 428 were in tree cavities. Raccoon occurrence among 4 cover types differed from that expected based on the to...

Tree stem diameter variations were measured simultaneously in beech (Fagus sylvatica L.) in Sorø, Denmark and in Scots pine (Pinus sylvestris L.) in Hyytiälä, Finland. The variations were detected at two heights on the xylem and the whole stem on both trees. The evapo-transpiration of the forests was measured by eddy-covariance method. The pattern of evapo-transpiration was refl ected on the di...

Two techniques based on analytical pyrolysis and mass spectrometry, direct exposure-MS (DE-MS) and pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), were used to characterise waterlogged archaeological wood and to study degradation patterns of wood in aqueous environments. The two techniques were applied to samples from the excavation of the Site of the Ancient Ships of Pisa San Rossor...

The first goal of this paper is to verify the accuracy four calculation methods log volume. tool achieve compare results volume with real obtained from three-dimensional reconstruction by computed tomography. second determine effectiveness displaying qualitative features wood in models selected pieces logs oak, beech, and spruce, which were using It possible state that each tested are applicabl...

This study was made to determine surface characteristics such as colour, gloss, and hardness changes of Oriental beech (Fagus orientalis). The wood specimens were firstly impregnated with some fire-retardants (FRs) primed epoxy resin (EPR) then coated polyurethane/polyurea hybrid (PUU). 3 % aqueous solution boric acid (BA), borax (BX), mixture (1:1), ammonium sulphate (AS). While Sikafloor®-15...

Wood dust generated during woodworking—particularly from hardwood species sanding—poses a health and safety hazard to workers in the wood industry. This study aimed determine particle-size distribution of selected content fine particles created machine sanding, which pose highest hazards woodworking Six were studied: black alder, European ash, common walnut, pedunculate oak, hornbeam, beech. Th...