The availability of reliable transportation is critical to health outcomes, particularly for low-income Americans with chronic health conditions. When lack of transportation impedes medical treatment, chronic conditions can be exacerbated and potentially lead to increased use of emergency medical services. Medicaid’s non-emergency medical transportation (NEMT) benefit seeks to fill in transport...

Multi-echelon inventory systems are one of the most important and attractive areas in modelling supply chain management so that several researches and studies have been done about. In this paper, the total cost function of a two-echelon inventory system with central warehouse and many identical retailers controlled by continuous review inventory policy is estimated. We have assumed the demand i...

Many studies focus on inventory systems to analyze different real-world situations. This paper considers a two-echelon supply chain that includes one warehouse and one retailer with stochastic demand and an up-to-level policy. The retailer’s lead time includes the transportation time from the warehouse to the retailer that is unknown to the retailer. On the other hand, the warehouse is unaware ...

Nacrtak The importance of forest wood chips as fuel for energy production will increase relative to sawmill by-products. The additional production is not a question of potential (harvesting residues, wood from thinning, coppice stands and short rotation forests) but more so a question of economic feasibility. The analyses of different chip production systems resulted in the identification of tw...

A new 3-D mercury model has been developed within the Danish Arctic Monitoring and Assessment Programme (AMAP). The model is based on the Danish Eulerian Hemi-spheric Model, which in the original version has been used to study the transport of SO 2 , SO 2− 4 and Pb into the Arctic. It was developed for sulphur in 1990 and in 1999 5 also lead was included. For the current study a chemical scheme...

A new 3-D mercury model has been developed within the Danish Arctic Monitoring and Assessment Programme (AMAP). The model is based on the Danish Eulerian Hemispheric Model, which in the original version has been used to study the transport of SO2, SO 2− 4 and Pb into the Arctic. It was developed for sulphur in 1990 and in 1999 also lead was included. For the current study a chemical scheme for ...

Fire hazard during ship transportation of certain modern solid fuels is identified. A particular mechanism which may lead to catastrophic ship fire is discussed. A mathematical model predicting time to such fully developed fire (flashover time) I s proposed. An analytical solution is obtained for the developed model. An important part of this solution is a closed form analytical description of ...

Nowadays, one of the problems of human life is popula- tion congestion and the lack of ability to meet their needs. One of the important infrastructures affected by this issue is the transportation infrastructure. Moreover, increasing transportation facilities through conventional methods, due to the need for macro investment and much time, cannot be nowadays considered as a proper and practi- ...

using a hierarchical hybrid fuzzy model, this paper presents an intelligent system to manage the traffic of ambulances and the vehicles for transporting blood and blood products and generally the transportation related to health emergencies. the transportation of emergency patients, emergency accidents and health-related emergencies, and the transportation of blood and blood products should be ...