نتایج جستجو برای: wood particles

تعداد نتایج: 195046  

Journal: :Bioresource technology 2008
Thomas L Eberhardt Soo-Hong Min

Biomass-based adsorbents have been widely studied as a cost-effective and environmentally-benign means to remove pollutants and nutrients from water. A two-stage treatment of aspen wood particles with solutions of carboxymethyl cellulose (CMC) and ferrous chloride afforded a biosorbent that was effective in removing phosphate from test solutions. FTIR spectroscopy of the biosorbent samples show...

2006
Yi Zheng Zhongli Pan Ruihong Zhang Bryan M. Jenkins Sherry Blunk

The Athel tree, Tamarix aphylla (L), can potentially be used as a biomass crop to help manage saline subsurface drainage water in arid land irrigated agriculture. In this study, Athel wood was used to manufacture medium-density particleboard with an aim of developing new applications for the saline wood. The research investigated the effects of different types of adhesives, particle sizes, bark...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

wood is a naturally renewable material with both continuous and isolated pore systems. wood-composite panels have the privilege of offering a homogeneous structure to be used as constructional and structural materials. however, its nature makes it susceptible to biological wood-deteriorating agents, water absorption and thickness swelling, fire, etc. using nano-materials are very easy in the wo...

2008
Raúl Espinoza Herrera Alain Cloutier

In order to determine the feasibility of manufacturing wood-gypsum and wood-gypsum-cement particleboards, the hydration reactions of four Eastern Canadian wood species with gypsum and Portland cement were studied. The compatibility of hot water extracted and raw wood particles with both gypsum and a gypsum-Portland cement mixture were determined for jack pine, balsam fi r, aspen and white birch...

Journal: :جنگل و فرآورده های چوب 0
محمد شمسیان عضو هیات علمی طه سخندان دانشجو حمیدرضا منصوری مدیر گروه صنایع چوب و کاغذ دانشگاه زابل علی بیات کشکولی هیات علمی گروه صنایع چوب و کاغذ دانشگاه زابل

light weight wood base sandwich panels have some special properties and their most important properties is high mechanical strength with its light weight. these panels can replace instead of traditional structural systems in iran. the purpose of this paper is investigating the mechanical properties of light weight wood base sandwich panels that have made from sunflower stalk wastes and particle...

2010
Quang V. Cao Fei Yao Qinglin Wu

The effects of sample size on fitting length distribution of wood particles used for manufacturing wood-based composites were investigated. A simulation study was conducted to evaluate the variations of the first four sample moments and the ability of the sample distributions to characterize the population represented by the original data. Results showed that a sample size of 2000 was deemed ne...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2002
Yohannes Tesfaigzi Shashibhushan P Singh Jennifer E Foster Justin Kubatko Edward B Barr Philip M Fine Jacob D McDonald Fletcher F Hahn Joe L Mauderly

Wood smoke is a significant source of air pollution in many parts of the United States, and epidemiological data suggest a causal relationship between elevated wood smoke levels and health effects. The present study was designed to provide information on the potential respiratory health responses to subchronic wood smoke exposures in a Native American community in New Mexico. Therefore, this st...

2015
E. A. Bruns

Residential wood burning contributes to the total atmospheric aerosol burden; however, large uncertainties remain in the magnitude and characteristics of wood burning products. Primary emissions are influenced by a variety of parameters, including appliance type, burner wood load and wood type. In addition to directly emitted particles, previous laboratory studies have shown that oxidation of g...

2017
Jingfa Zhang Haowei Wang Haigang Wang Dan Xing Zhijun Zhang Qingwen Wang Hisao Oka

Biocomposites with unique functionalities for tailored applications are promising products for a sustainable future. In this work, a process concept of forming functional composites by combining of high-density polyethylene, carbon black, and magnetic lignocellulosic particles (wood flour) was demonstrated. The impacts of process parameters on morphologies, crystalline phase, and magnetic inten...

2007

Woods are customarily divided into two types: hardwood and softwood. Softwoods are generally conifers (pine, fir, spruce, cedar, etc.) and hardwoods come from deciduous trees (oak, beech, ash, silver birch, etc.) and from certain tropical species (mahogany, teak, etc.). This distinction is purely botanical, softwoods corresponding to the gymnosperms and hardwoods to the angiosperms, and certain...

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