In emergency medical facilities location, the hierarchical diagnosis and treatment system plays an obvious role in rational allocation of resources improving use efficiency resources. However, few studies have investigated operational mechanism systems uncertain environments. To address this research gap, paper proposes a hybrid approach for facilities’ location-allocation. first stage, order t...

Planning for optimized farming with the aim of providing ideal site and cultivar selection is critical a stable sustainable supply rice sufficient quantity quality to customers. In this study, range morphological characteristics yield eight cultivars that are commonly cultivated in Korea were investigated from 2005 2020. All significantly different among cultivars. The dataset was used isolate ...

This paper modifies a Townsend turnpike model by letting agents stay at a location long enough to trade some consumption loans, but not long enough to support a Pareto optimal allocation. Monetary equilibria exist that are non-optimal in the absence of a scheme to pay interest on currency at a particular rate. Paying interest on currency at the optimal rate delivers a Pareto optimal allocation,...

In this paper, we develop a capacitated location-covering model considering interval values for demand and service parameters. We also consider flexibility on distance standard for covering demand nodes by the servers. We use the satisfaction degree to represent the constraint of service capacity. The proposed model belongs to the class of mixed integer programming models. Our model can be redu...