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In this paper, a novel formulation for the capacitated warehouse inventory-location model with risk pooling for multiple products is proposed. A single plant ships different types of products to retailers via a network of warehouses. The locations and inventory policies of the warehouses are chosen so as to minimize the sum of fixed facility location, transportation, and inventory carrying costs....
Rapid technology advances have shortened the lifecycle of electronic products, resulting in the increasing number of discarded products in recent years. Due to the growing environmental concerns, an effective reverse logistics infrastructure is required to support the product recovery activities. In this study, a forward/reverse logistics model is developed to minimize the total cost of supply chain...
In this paper, a multi-product multi-echelon remanufacturing logistics network based on forward flows is designed. A fuzzy mixed integer linear programming (FMILP) model is developed accounting for the uncertainty of the quantities of returned products as fuzzy parameters. Regarding the quantity of the returned products as triangle fuzzy parameter, the proposed model is solved by converting fuzzy...
According to the logistics node location of the preferred option is to make its goods through the logistics node collection, transfer, distribution, until the point of delivery to the needs of the whole process's best efficiency, using AHP and the 0-1 integer programming combined model methods, to select logistics nodes and combination of suppliers. MDL, for example in order to show that the minimum...
The paper addresses the optimal design of the last branch of the pharmaceutical supply chain, i.e., the hospital drug distribution chain (HDDC), starting from suppliers till the patients of a department. Considering a distributed healthcare system composed of different stages connected by medicine and information links labeled with suitable performance indices, a procedure employing digraph modeling...
The aim of this paper is to study a mixed integer nonlinear programming model including forward logistics and reverse logistics. The problem is how to select plants, stores and collection points to constitute a closed-loop network, and how to expend the chosen plants, stores and collection points. Differential evolution algorithm is applied to solve the problem. The differential evolution algorithm...
We summarized recent research aimed at expanding the context of facility location decisions to incorporate additional features of a supply chain including variable construction cost, inventory management, transportation cost, etc. Authors expended location model of risk pooling with variable construction cost (LMRPVCC) to construct location model of risking pool with variable construction cost with...
This research is designed for manufacturing companies with sparse transportation networks to evaluate the strategic possibility of private shipment consolidation, to screen a network for opportunities to implement consolidation policies, and to optimizes the network design to maximize the amount of transportation cost savings. The proposed mathematical models and solution methodologies determine the...
In this paper, we develop a novel multi-echelon joint inventory-location problem that considers location and inventory decisions simultaneously. The model deals with the distribution of a single commodity from a single manufacturer to a set of retailers through a set of sites where distribution centers can be located. The retailers face deterministic demand and hold working inventory. We assume single...
VMI is a process where the vendor creates orders for their customers based on demand information that they receive from the customers. This arrangement can promote a higher level of service and reduce cost by integrating the inventory and replenishment policies especially when the companies rely on third-party logistics providers to transport the products across the supply chain. For this purpose,...
The investigated case is a vast country with a variety of climates. Due to this diversity in climate and therefore different farming conditions in different areas of the country, wheat is produced at different times of year all over the country. Therefore, wheat production rate is not constant during year all around the country. Lack of balance between wheat production and consumption in different...
A Free Trade Zone (FTZ) is an economic zone that an international business can utilize to optimize its supply network. It provides the advantages of operation efficiency as well as financial benefits. For these reasons, many international businesses choose to locate their manufacturing factories or distribution centers in an FTZ. However, the deployment of business sites in such an area necessitates...
The medical waste management is of great importance due to its potential environmental hazards and public health risks. Manufacturers have to collect the medical waste and control its recovery or disposal. Medical waste recovery, which encompasses reuse, remanufacturing and materials recycling, requires a specially structured reverse logistic network in order to collect medical waste efficiently....
In order to explore the impact of upstream structural on supply chain design, Taking into consideration that the relationship between bill of material (BOM) and multi-hierarchical suppliers, based on the supply chain design with single supply hub model, this paper extended to establish supply chain design models with two supply hubs from the model with single Supply Hub. These mixed integer programming...
Transport logistics and fleet management problems often fall into one class of the optimization problems. Finding an optimal set of routes for a group of vehicles in the transportation network under defined constraints is known as the Vehicle Routing Problem (VRP). In this paper, we propose a novel hybrid uncertain approach, in which first considers a capacitated VRP whose demands are assumed to be...
This paper presents a real case problem of empty container reuse. The aim of this work is to optimize empty containers reuse between regional consignees, shippers, and port terminal. The minimizing cost consists of reducing the movements of empty containers from port terminal to depot, from consignees to depot, and from depot to shippers. Several constraints must be satisfied as: the empty containers...
Increasing regulatory legislations for carbon and waste management and the concerns on corporate social responsibility are driving forces behind sustainable supply chain network design which involves taking into account social, economic and environmental objectives at design time. While the social dimension is sometime harder to capture or quantify in mathematical terms, the emission trading schema...
In consideration of economy of distance and economy of scale, the establishment of exclusive recycling center is the optimal choice for resource-efficient reverse logistics. Aiming at how to determine the location of reverse logistics centers and the recycled amount of scrap goods, the article has established a non-linear mixed-integer programming model with the minimum total cost as the objective...
Locating rail/road intermodal terminals for freight is decided by the spatial distribution of the multimodal transport network and the shortest path between supply node and demand node. The location problem of rail/ road transfer terminals is formulated by an integer linear programming model. Considering the fuzzy uncertainty in intermodal transport network, the solution to the location model is proposed...
Due to the growing environmental pressure and resource antinomy, increasing attention is given to the reverse logistics. In this paper, a collection model based on circular economy, which is oriented to the third party reverse logistics, is proposed. The model, called mixed integer programming model, is solved by an algorithm based on Lagrangian heuristics. A numerical example is given to illustrate...
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