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Using the methods of fault types and the effect analysis identified all types of risk existing in mine ventilation system and its index system. Deciding the constant right value for each index through the method of combing the fuzzy interval method and the analytic hierarchy process method and achieving variable weight using the value change of hazards and in the end establish the mathematical model...
To implement the sustainable development in iron and steel industry, many iron and steel enterprises have begun to explore the way of green manufacturing. In this paper, a relative green degree evaluation model for equipments of iron and steel enterprises is established. A five-dimension evaluation index system for equipment is created which is TPCRE (T-Time, P-Performance, C-Cost, R-Resource, E-Environment)...
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