In this paper, the multi-objective multi-echelon supply chain network design problem is investigated. The resulted problem considers uncertainty of single product demand and the downstream risk attitude simultaneously and ...

In this paper, for a given infeasible network, we change the lower and upper bounds such that the sum of the violations costs from the lower and upper bounds is minimum. We call this problem the adjusting problem and show ...

Given the initial layout of a container terminal with a bay, the container retrieval problem aims at obtaining a movement sequence for the crane to retrieve all the containers arranged in a pre-defined order. In this study, ...

In this study, a multi-state degraded system is studied, where status of system is degrading over time continuously. As time progresses, system may either deteriorate gradually and go to lower performance state or it may ...

In this paper a two-stage supply chain including a wholesaler and a retailer is investigated. In which retailer acts as a vendor and sells the products to the final customers. This chain only produces a single deteriorating ...

Regularly, manufacturing systems produce perfect and imperfect quality items. The perfect items start deteriorating as soon as these enter to the inventory. On the other hand, the suppliers provide a delay in payment in ...

A real manufacturing system faces lots of real world situations such as stochastic behaviors which lack of this issue is noticeable in previous researches. The aim of this paper is to find the optimum layout and the most ...

Control charts are popular tounderols for process monitoring and are mainly classi ed into memory and memory-less structures. Exponentially Weighted Moving Average control charts (EWMA) are widely used for the detection ...