In a small wood preserving industry spot samples were taken from contaminated surfaces at several places and tested for mutagenicity. The results suggest that the application of a wipe test can give a first indication of occupational exposure to mutagenic and carcinogenic substances, particularly when exposure occurs more from skin contact than from inhalation. One of the pesticide chemicals us...

Kraft wood pulping is the predominant process used in the pulp and paper industry for its versatility and insensitivity to variations of wood supply. In this work, a deterministic model has been developed for a Kraft Pulping Process of Eucalyptus by combining intrinsic kinetic equations (Lignin, Carbohydrates) and it is used to investigate the effects of process conditions on the extent of deli...

Product quality and cost efficiency continue to grow in importance for the wood-based composites industry. The complex dynamics of the manufacturing process lends itself to the adoption of simulation models. Simulation models may be used to understand and manipulate the many parameters involved in the manufacturing process. However, most of the simulation models that have been developed over th...

Considerations of economic potential, past utilization, habitat, ecology, and silviculture are brought together in nine recommendations for managing tanoak in northern California. These include seeding acorns point up, establishing new stands from root crown sprouts, thinning existing young-growth stands, beginning stands from nursery stock planted at different spacings and learning spacing and...

Agricultural waste biomass generated from agricultural production and food processing industry are abundant, such as durian  peel, mango peel, corn straw, rice bran, corn shell, potato peel and many more. Due to low commercial value, these wastes are disposed in landfill, which if not managed properly may cause environmental problems. Currently, environmental laws and regulations pertaining to ...

HIS PAPER REPORTS the application of ESF (College of Environmental Science and Forestry) Biorefinery concepts and technology in New York State industry. This is a planned application linking at least three industrial companies to reduce the time to practice. A wood-based biorefinery is being erected in New York. Identifying the strengths of the participating companies and required competencies ...

There is also sorne evidence of an association between nasal carcinomas other than adenocarcinoma and work as a carpenter. ln a case-control study based on an analysis of occupational data in the hospital records of 121 men seen for nasal cancer in British Columbia, Canada, between 1939 and 1977, a relative risk of2.5 (adjusted for smoking and ethnie origin) was associated with exposure to wood...

Wood quality assessment is an important issue in the pulp and paper industry. In this paper an automatic visual inspection system for wood structural quality measurement is described. To improve statistical image segmentation a new logarithm based global contrast enhancement technique is described. Region identification and reconstruction is performed based on local morphological operators with...

The purpose of this paper is to explain and describe the concepts of wood energy on a residential, commercial, and industrial scale in the United States so that the Forest Service can help meet the demands of communities involved in the forest products industry. In addition, the terminology associated with this field is for individuals to develop a basic understanding and familiarity with the t...

Recent studies have generated conflicting data regarding the bioaccumulation and toxicity of leachates from preservative-treated wood. Due to the scale of the wood preserving industry, timber treated with the most common preservative, chromated copper arsenate (CCA), may form a significant source of metals in the aquatic environment. The existing literature on leaching of CCA is reviewed, and t...