Since there has been tremendous progress in planning in the process industry during the last 25 years, it might be worthwhile to give an overview of the current state-of-the-art of planning problems in the process industry. This is the purpose of the current contribution which has the following structure: we start with some conceptional thoughts and some comments on special features of planning...

one main group of a transportation network is a discrete hub covering problem that seeks to minimize the total transportation cost. this paper presents a multi-product and multi-mode hub covering model, in which the transportation time depends on travelling mode between each pair of hubs. indeed, the nature of products is considered different and hub capacity constraint is also applied. due to ...

Process planning and scheduling are two key sub-functions in the manufacturing system. Traditionally, process planning and scheduling were regarded as the separate tasks to perform sequentially. Recently, a significant trend is to integrate process planning and scheduling more tightly to achieve greater performance and higher productivity of the manufacturing system. Because of the complementar...

We integrate production and distribution decisions in a recovery planning model for a disrupted production system to minimize the negative impacts of disruption on its profit and customers' satisfaction. The problem is originally motivated by the real-life case of an explosion disaster occurred in September 2015 in a leading producer of household consumer goods in Iran. Multiple recovery polici...

Aggregate production planning (APP) involves the simultaneous determination of company’s production, inventory and employment levels which fall between the broad decisions of long range planning and detailed short range planning. A mathematical model is formulated to investigate the optimal decision on each planning period. The goal is to minimize the total relevant costs considering time varyi...

Objective: This paper presents a long-term dynamic multi-objective model for distributed generation investment. In this model, sizing, sitting of DG units and specially the dynamics of investment over the planning period is considered as three objectives as multi-objective optimization problem. Accordingly, the multiobjective Interactive Artificial Bee Colony (IABC) is implemented for solving t...

One of the most important problems in production planning of flexible manufacturing system (FMS) is machine tool selection and operation allocation problem that directly influences the production costs and times .In this paper minimizing machining cost, set-up cost and material handling cost as a multi-objective problem in flexible manufacturing systems environment are considered. We present a ...

today, due to the direct and reverse logistics plays an important role in reducing the costs in supply chain. in this paper, in order to provide a closed-loop supply chain network including supply centers, production, distribution, collection, recycling and disposal of a used linear mixed integer programming. this paper to consider multi-period and multi-product in multi-level supply chain and ...