نتایج جستجو برای: wood product

تعداد نتایج: 317891  

بخشنده, بهزاد, عموزاده, حمید, نقدی, رامین, نیکوی, مهرداد,

Awareness of quality and quantity of wood produced in forestry plans play an important role in management of this product in market. The objective of this study that has been carried out in 7th watershed of north forest of Iran was to determine effective factors on wood breakage in felled trees, compare wood losses during felling and identify wood losses in felled trees and methods of their pre...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی گرگان - دانشکده جنگلداری و مهندسی چوب و کاغذ 1387

چکیده ندارد.

2004
Timothy G Townsend Brajesh Dubey Helena Solo-Gabriele

The management of discarded treated wood products upon disposal is one of the many factors that should be considered when evaluating a new wood preservative or when comparing wood preservatives as part of a life cycle assessment. Future environmental ramifications of disposal, as well as regulatory requirements and costs, must be assessed and weighed. This paper presents an overview of the fact...

An important parameter in composite materials is mechanical behavior and matrix-reinforcement interface interaction under applied stresses. In this investigation, bending strength of carbon-carbon composites synthesized from wood was analyzed as a measure of the composite mechanical properties. Also, densification efficiency of the products was determined by measuring the bulk density and open ...

2010
Tom Elder

Torrefaction is a thermo-chemical process that reduces the moisture content of wood and transforms it into a brittle, char-type material. The thermo-chemical process can reduce the mass of wood by 20-30% resulting in a denser, higher-valued product that can be transported more economically than traditional wood chips. Through torrefaction, wood may retain 90% of the energy value. This energy de...

Journal: :جنگل و فرآورده های چوب 0
وحید معظمی دانشجوی کارشناسی ارشد فرآورده های چندسازة چوبی، دانشگاه زابل، زابل، ایران محمد نجفیان اشرفی مدرس دانشگاه فنی ـ حرفه ای، دانشکدة فنی و حرفه ای 2 ساری، ساری، ایران مرتضی ناظریان استادیار گروه علوم و صنایع چوب و کاغذ، دانشگاه زابل، زابل، ایران رحیم محبی مربی گروه علوم و صنایع چوب و کاغذ، دانشگاه زابل، زابل، ایران

the deficiency of wooden resources and rising demand of wood and paper products caused an increasing interest to the lignocellulose resources in the production of paper and wood composite production, such as bagasse. in khuzestan province for build units of wood and paper industries with the approach of using bagasse as a raw material, 6 main indicator and 35 sub-indicator were prioritization. ...

Journal: :Journal of environmental management 2009
Randy B Foltz Natalie S Copeland

An erosion control product made by shredding on-site woody materials was evaluated for mitigating erosion through a series of rainfall simulations. Tests were conducted on bare soil and soil with 30, 50, and 70% cover on a coarse and a fine-grained soil. Results indicated that the wood product known as wood shreds reduced runoff and soil loss from both soil types. Erosion mitigation ranged from...

2010
Enar Nordvik Simon Schütte N. Olof Broman

Evaluations of products based on visual stimuli are at the same time both subjective and important. The aim of this study was to examine the relationship between the visual properties of wood flooring and people’s reactions to computer visualization of interior wood products. The research strategy involved showing digital pictures of the same room, but with different wood floorings. The impress...

2013
Jeremy Jover

Information conservation in the divergent process has always imposed importantconstraints. In the Wood industry, in which the problem is present, has no solution toconserve information all along the wood life cycle.This thesis goal is to validate the use of two new paradigms allowing improving theinformation conservation: the communicating material and the virtual manufacturing....

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2010
T Mato M Ben C Kennes M C Veiga

Fibreboard production is one of the most important industrial activities in Galicia (Spain). Great amounts of wastewater are generated, with properties depending on the type of wood, treatment process, final product and water reusing, among others. These effluents are characterized by a high chemical oxygen demand (COD), low pH and nutrients limitation. Aerobic and anaerobic processes have been...

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