نتایج جستجو برای: wood products
تعداد نتایج: 327504 فیلتر نتایج به سال:
A limited initial study was made to evaluate liquefaction of creosote-treated southern pine wood sawdust with liquefaction of birch wood powder as a control. The objective was to assess the feasibility of using creo_.._. sot&treated southern pine wood as a raw material for the-formulation-of-phenol-basedresmadhesives-Them liquefaction was conducted in the presence of phenol with sulfuric acid a...
Among the many interesting topics in the field of Wood Science and Technology is a fascinating story about research and development on drying wood products with high-frequency electric current. Historically, it can be traced back over decades. Heat transfer to and evaporation of moisture from wood may be accomplished with high frequency current depending on its dielectric properties. Because wo...
This investigation determined the gluability of weathered, out-of-service southern yellow pine (SYP) (Pinus spp.) utility poles. Three types of adhesives were used: resorcinol-phenol formaldehyde (RPF), polyvinyl acetate (PVA), and casein. The poles consisted of two service duration groups: 5 and 25 years. Longer weathering caused greater reduction in creosote content, especially in the outer a...
2 Variation of colour and selected physical and mechanical properties related to artificial drying of sawn silver birch (Betula pendula Roth) timber from plantations Veikko Möttönen Dissertationes Forestales 13 3 Möttönen, V. 2005. Variation of colour and selected physical and mechanical properties related to artificial drying of sawn silver birch (Betula pendula Roth) timber from plantations. ...
Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Atsushi Takano Name of the doctoral dissertation Wood in sustainable construction a material perspective Learning from vernacular architecture Publisher School of Chemical Technology Unit Department of Forest Products Technology Series Aalto University publication series DOCTORAL DISSERTATIONS 97/2015 Field of research Wood Ma...
Economists believe that the development of the industry sector is for the benefit of other sectors of the economy. In 23 groups of industrial activity in classification ISIC, the production and export of wood industries have received less attention in developing countries. exports of wood products have a major impact on the GDP and provide employment and sustainable development of natural resou...
The use of organic materials is increasing in agriculture and industrial products due to their less side effects than chemical materials. In order to study the effect of pine wood vinegar (Pyroligneous acid) on growth and physiological traits of basil, two experiments were designed and conducted in 2014, based on a completely randomized design with 6 treatments (0, 1250, 2000, 2500, 3333 and 50...
This study compares the cradle-to-gate total energy and major emissions for the extraction of raw materials, production, and transportation of the common wood building materials from the CORRIM 2004 reports. A life-cycle inventory produced the raw materials, including fuel resources and emission to air, water, and land for glued-laminated timbers, kiln-dried and green softwood lumber, laminated...
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