نتایج جستجو برای: wood and paper industry

تعداد نتایج: 16921138  

Journal: :Economic Research-Ekonomska Istraživanja 2011

2006
Talel Ladhari Anis Gharbi Mohamed Haouari Mohamed Ali Rakrouki

We address a complex scheduling problem in the wood panel industry with the objective of minimizing a quadratic function of job tardiness. The proposed solution strategy, which is based on an effective genetic algorithm, has been coded and implemented within a major north african compagny leader in the wood panel manufacturing. Experimental results indicate significant decrease of delivery times.

Journal: :Bioresource technology 2009
J Y Zhu X J Pan G S Wang R Gleisner

This study established a novel process using sulfite pretreatment to overcome recalcitrance of lignocellulose (SPORL) for robust and efficient bioconversion of softwoods. The process consists of sulfite treatment of wood chips under acidic conditions followed by mechanical size reduction using disk refining. The results indicated that after the SPORL pretreatment of spruce chips with 8-10% bisu...

Journal: :CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne 2002
Barbara Sibbald

grounds because of “disturbing” levels of arsenic in the soil beneath play structures made from pressure-treated wood. Connecticut is warning children not to play under them, and Minnesota has considered banning the wood. In Ottawa, the chief medical officer says playground soil should be tested for contamination. The culprit? Arsenic that leaches from pressure-treated wood into soil (see page ...

Journal: :European Journal of Wood and Wood Products 2020

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...

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