Generating effective employment opportunities is one of the principal challenges faced by development planners in Iran. If investment projects are undertaken on the basis of sectoral priorities in production and employment, the economic and social problems emanating from unemployment will be reduced, helping the Country’s process of development. In this paper, an attempt is made to identify key...

Wood-plastic composites represent a growing class of materials used by the residential construction industry and the furniture industry. For some applications in these industries, the fire performance of the material must be known, and in some cases improved. Lab-scale fire performance tests allow for comparisons between WPC formulations. At the Forest Products Laboratory (FPL) oxygen index tes...

Research on wood and natural fiber-plasticcomposites has spanned several decades. However, there was relatively little market activity in the United States outside of the automotive industry prior to the last 5 years. Recently, however, the U.S. wood-plasticcomposites industry has grown tremendously. Although its total marketsize is small relativetothe traditional wood composites industry, the ...

Wood vinegar is a substance, derived from cooling black carbon fire, which could be used instead of chemical materials in the agriculture industry as an organic compound. In order to study the effectiveness of pine wood vinegar on physiological and photosynthesis traits of cucumber, two experiments were conducted based on a completely randomized design with six treatments including 0, 1250, 200...

wood resources, non-wood plants and recycled papers are the common raw materials of papermaking. shortage of raw materials, is a challenging problem in developing pulp and paper industry. in this study, cladophora green algae was used as a new source of cellulosic fiberfor pulping and papermaking.. cladophora algae was cooked with cold soda method and then was mixed with nssc pulp at 10,20 and ...

A survey of size-fractionated dust exposure was carried out in 10 wood processing plants across the United States as part of a 5-year longitudinal respiratory health study. The facilities included a sawmill, plywood assembly plants, secondary wood milling operations, and factories producing finished wood products such as wood furniture and cabinets. Size-fractionated dust exposures were determi...