In this article, equipment overhaul is considered in a multi-stage flow shop scheduling problem. problem, the equipments are disassembled first stage, and repairs done on parallel workshops second assembly operation third stage. Considering three-stage with machines stages new industry. The sequence of processing determined as well allocation should be such way that total completion time jobs m...

Supplier selection is one of the influential decisions for effectiveness of purchasing and manufacturing policies under competitive conditions of the market. Regarding the fact that decision makers (DMs) consider conflicting criteria for selecting suppliers, multiple-criteria programming is a promising approach to solve the problem. This paper develops a nadir compromise programming (NCP) model...

We consider an air conditioning system design that minimizes the costs of electricity and equipment, while satisfying individual usage requirements. The problem finding optimal configuration can be formulated as a combinatorial optimization problem. When cost is evaluated using simulation software, computational time excessive. therefore propose efficient iterated local search method uses spars...

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