نتایج جستجو برای: wood decay

تعداد نتایج: 112059  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی 1391

in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...

2012
Todd F. Shupe Cheng Piao

Wood-based composite utility poles are rece!VIng increasing attention in the North American pole market. This interest is being driven by many increasing factors such as increasing: (I) disposal costs of solid wood poles, (2) liability and environmental concerns with traditional means of disposal of solid wood poles, (3) cost and concerns of long-term availability of pole-sized timber, and ( 4)...

Journal: :Environmental Dynamics and Global Climate Change 2013

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