نتایج جستجو برای: waste of timber cutting mills

تعداد نتایج: 21180876  

Journal: :Journal of traditional building, architecture and urbanism 2022

This article discusses the 162-years history of only known nineteenth-century timber-frame farmers’ market in existence today. Designed by an architect, this immense building required great skill from tradespeople who built it old-growth Michigan white pine timbers. No machinery was used planing surfaces or cutting mortise-and-tenon joinery that holds structure together. It is without question ...

Sabzalipour, Sima , Attarroshan, Sina , Lajmiri Orak, Zohre , Panahpour, Ebrahim , Tavakkoli, Haman ,

  Background: Drill cutting is one of the largest volumes of waste generated in oil and gas exploration and production activities, which contain toxic substances, especially heavy metals, which are potentially harmful to the ecosystem. This study aimed to investigate the pollution indices, available ratio, and ecological risk of some heavy metals in the Drill cutting of the Ahvaz oil field in s...

Journal: :European Journal of Operational Research 2001
Pearl Y. Wang Christine L. Valenzuela

This report describes a recursive process for generating data sets of rigid rectangles that can be placed into rectangular regions with zero waste. The generation procedure can be modified to guarantee that the aspect and area ratios of the rectangles in the generated data sets satisfy user-specified parameters. This recursive process can thus be employed to create a variety of data sets that c...

Journal: :International Journal of Surgery 2013

ژورنال: علوم آب و خاک 2009
اسلام بنیاد, امیر, توانکار, فرزام, مجنونیان, باریس,

Forest future depends on forest stands regeneration. Soil is one of the principal capitals in the forest area. It is important to minimize damages to the forest ecosystem during logging operation. In forestry and forest management, it is significant to know the effect of forest logging damages on regeneration, sapling and soil compaction. This study was carried out in Asalem Beech forest area, ...

2002
Anthony Snider Frederick Cubbage Robert Moulton

Four approaches were used to estimate the market effects of wood chip mills for nonindustrial private forest (NIPF) landowners. First, we used economic welfare analyses to estimate potential changes in consumer and producer surplus that might be attributed to increased stumpage demand created by wood chip mills. Better markets would consistently increase economic returns for both timber buyers ...

2011
Yanxin Xu Genke Yang Jie Bai Changchun Pan

Cutting and packing (C & P) problem is to allocate a set of items to larger rectangular standardized units by minimizing the waste. Bin packing, strip packing and cutting stock problem is well-known classical C & P problem. An overview is provided of several meta-heuristics algorithms of swarm intelligence from the literature for the 2D C & P problem. The objective of this paper is to present a...

Journal: :The Journal of The Textile Institute 2016

2016
Sun Kyung Kim Hyekyoung Kim Hankwon Chang Bong-Gyoo Cho Jiaxing Huang Hyundong Yoo Hansu Kim Hee Dong Jang

Over 40% of high-purity silicon (Si) is consumed as sludge waste consisting of Si, silicon carbide (SiC) particles and metal impurities from the fragments of cutting wire mixed in ethylene glycol based cutting fluid during Si wafer slicing in semiconductor fabrication. Recovery of Si from the waste Si sludge has been a great concern because Si particles are promising high-capacity anode materia...

2014
Jonathan Kenney Thomas Gallagher Mathew Smidt Dana Mitchell Timothy McDonald

Fuel consumption is an important aspect of the efficiency of timber harvesting. Since loggers are paid based on the weight of wood they produce, it is important to note how many gallons of fuel it takes to produce one ton of wood. An extensive literature review was conducted to evaluate different harvesting systems and the amount of fuel they consumed per unit of wood that they produced. Result...

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