This paper is a computational study to investigate the value of coordinating production and distribution planning. The particular scenario we consider concerns a plant that produces a number of products over time and maintains an inventory of finished goods at the plant. The products are distributed by a fleet of trucks to a number of retail outlets at which the demand for each product is known...

We developed a mixed integer linear programming model for an integrated decision problem of production, inventory, and transportation planning. Our model combines the direct shipment into the production, inventory, and distribution planning. The objective was to minimize the total operation cost which is comprised of production setup cost, inventory holding cost, transportation cost, and reorde...

We consider a production system containing a set of machines which are arranged according to a series-parallel configuration. The machines are unreliable and the failure rate of machine depends on the load assigned to the machine. The expected performance of the system is considered to be a non-monotonic function of its load. The issue of machine failure rate depending upon machine load brings ...

The digital factory concept offers an integrated approach to enhance products and production engineering processes. Simulation is a key technology within this concept. Different types of simulation, such as discrete event or 3D-motion simulation can be applied in virtual models to various planning tasks and stages to improve the product and process planning at all levels. The focus and key fact...

This paper describes the development and implementation of a first year undergraduate law module which has been redesigned to enable the embedding of Personal Development Planning (PDP) within the curriculum. The module has been delivered through a combination of both face-to-face classroom and online activities using a virtual learning environment (VLE). The institutional background consists o...

the pupose of this paper is modeling of partial digest problem (pdp) as a mathematical programming problem. in this paper we present a new viewpoint of pdp. we formulate the pdp as a continuous optimization problem and develope a method to solve this problem. finally we constract a linear programming model for the problem with an additional constraint. this later model can be solved by the simp...

The planning and operational issues of distribution systems have attracted more and more attentions from researchers with the development of Smart Grids. A new integrated planning model of distribution systems and the solution methods are proposed in this paper to investigate the way of improving the economy and reliability of distribution system planning by making full use of distributed gener...

Motivated by the challenges encountered in sawmill production planning, we study a multi-product, multi-period production planning problem with uncertainty in the quality of raw materials and consequently in processes yields, as well as uncertainty in products demands. As demand and yield own different uncertain natures, they are modeled separately and then integrated. Demand uncertainty is con...

The problem investigated in this paper is focused on integrated tactical planning in the lumber supply chain which is featured as a divergent value chain. In this industry, raw materials (logs) are shipped from forest contractors to sawmills. Then the logs are sawn to finished lumbers and are distributed to the lumber market through different channels. A mixed integer programming (MIP) model is...

Due to the pressure of rising costs and an increase in customer orientation, IT-service providers are forced to professionalize their operations (IT-Production). Using Enterprise Resource Planning (ERP) systems common in real goods production allows to take advantage of planning functions and integrated data management. Since the production planning of IT-Production cannot be addressed by stand...