Evaluating the suppliers and selecting an appropriate set of them are one of the fundamental strategies to enhancing the product/service quality, and the reputation of the organization. Hence, identifying criteria for ...

This paper investigates coordination of a decentralized two-echelon supply chain with a single supplier and retailer with uncertain market demand. The presented model pursuits to coordinate the decisions related to the ...

Warehouses and distribution centers are essential components in supply chain and their management has a particular importance. In the traditional approach for collecting the items of orders in warehouses, operators walk ...

In base stock policy, a new order is done immediately when a sale occurs. However, in modified base stock policy, doing a new order is delayed. In this paper, for the first time a two-echelon inventory system is studied ...

As the main source of income and expenses of hospitals, operating rooms (ORs) are the engines of hospitals' economics and they have a significant impact on public health. Many papers concerned regarding OR planning and ...

Product selection is done according to its specifications. In modern competitive markets, product survival refers back to its appropriate price, quality, and innovations in accordance with customers' needs. In order to ...

In this paper, a tri-level defense facility location model for full coverage in r-interdiction median problem is delivered. The purpose of this model is to design a proper service system in a way that after a worst case ...