Flexible job shop scheduling problem )FJSP) is an extension of the classical job shop scheduling problem which allows an operation to be processed by any machine from a given set. FJSP is NP-hard and mainly presents two difficulties. The first one is to assign each operation to a machine out of a set of capable machines, and the second one deals with sequencing the assigned operations on the machines. However, it is quite difficult to achieve an optimal solution to this problem in medium and large size problems with traditional optimization approaches. In this paper a memetic algorithm )MA) for flexible job shop scheduling with overlapping in operation is proposed that solves the FJSP to minimize makespan time. The experimental results show that the proposed algorithm is capable to achieve the optimal solution for small size problems and near optimal solutions for medium and large size problems
The Packaging sector is an important global industry, representing about 2% of the Gross National Product of the developed countries. In recent years deteriorating items packaging such as food and pharmacy packaging has been developing by high speed, attempting to product safety, shelf-life of products, environmental condition and consumer convenience. So the new initiative methods have been studying and implementing to develop the function of this industry which smart techniques for packaging are samples of this method. This techniques have high power for security the quality or safety of deteriorating items by using the less additives or deteriorate prevented materials that cause the reduce within of the waste, venom and allergies. Smart systems can increase production efficiency, precise and continual and surveillance, product pursuit wherever at supply chains and finally increases the safety factor of consuming safe product and reduces the protests from consumer. The fundamental point is that how we use this technique to improve the system condition. In this research we survived the effect of implementing smart packaging on inventory control also the system has been compared before and after implementing the smart packaging by using mathematical model.
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