The objective of this research was to determine the global warming potential (GWP) of office furniture in Thailand. The life cycle of product was carried out from a gate-to-gate perspective according to life cycle assessment (LCA) methodology, using global warming potential as the selected impact category. According to the results, the environmental impact of global warming is the seat backrest; seat frame and seat recline, respectively. To improve the production of seat frame, the piece that the environmental impacts of global warming as much as possible can help reduce the impact on the environment caused by the release of toxins into the air decreases..
This research aims at studying the parameters of particleboard manufacturing using waste tire rubber crumbs and wood particle, mechanical and physical properties of the composite panel according to standard JIS. A5908-2003: Particle Board. Analysis of Covariance with the cofactor (Covariance) of a piece of wood density at different levels of statistical significance (α = .05) and determine the appropriate level of mechanical and physical properties. The total amount of waste tires was composed of 5% urea-formaldehyde 13% in compression at 5 minutes, and the density of the material less than 868.88 kg/m3. Improvement of the mechanical and physical properties of a piece of particle board was to conform to the international standards.
The objective of this research was to apply the industrial engineering techniques for cost reduction in frozen food industry. Process line survey, line balancing and cost analysis were conducted in each work station to analyze the problem. Data showed that three work stations namely, peeled trim station, arrangement before cooked station, and arrangement in tray station, needed to be improved. Investigation the problems and rate of production at each station the researchers proposed the way to increase the productivity of arrangement before cooked station by setting layout and conveyor installing project. The peeled trim station was proposed to improvement by the labor skilled development and layout design project for process continuous. Also the pre packing arrangement on tray and after freeze station was proposed to improvement by modifying its plant layout and conveyor installing project. It was found that line balancing capability increased from 78.32 % to 90.80 %. The labor skilled development project combined with a design plant layout and conveyor installing system were resulted in reducing 33 persons of labor. It was also showed that the production units cost for the production line can be reduced by 16.65 %. The flow process chart of the production line has showed that delay and transportation activities were reduced from 23.00 % down to 8.70 %.
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