Many authors have examined lot sizing, scheduling and sequence of multi-product flow shops, but most of them have assumed that set up times are independent of sequence. Whereas dependence of set up times to sequence is more common in practice. Hence, in this paper, we examine the discussed problem with hypothesis of dependence of set up times to sequence and cyclic schedule policy in basic peri...

Nowadays, in highly competitive global markets and constant pressure to reduce total costs, enterprises consider group technology and Supply Chain Management (SCM) accordingly and usually separately as the key elements for intra and inter facilities improvement. Simultaneous consideration of the elements of these two disciplines in an integrated design can result in higher efficiency and ...

This paper draws upon on-going research into the changes taking place in the Brazilian vehicle assembly industry with particular reference to the state of Rio de Janeiro, Brazil. It focuses upon a case study of Volkswagen’s bus and truck plant and its workers at Resende. The plant opened in 1996 on a green-field site and was presented as a major development in vehicle assembly. The unique featu...

The paper presents the problems with integration of the companies within the supply chain. Usually the separate actions are undertaken by the companies to implement lean tools for production systems and external logistics processes. This situation leads to minor results or moving the costs between production and logistics processes instead of reduction. The purpose of the paper is to present th...

Integrated production-distribution planning (PDP) is one of the most important approaches in supply chain networks. We consider a supply chain network (SCN) to consist of multi suppliers, plants, distribution centers (DCs), and retailers. A bi-objective mixed integer linear programming model for integrating production-distribution designed here aim to simultaneously minimize total net costs in ...

In this paper, we present a model of lean supplier management between an OEM and its suppliers for the objectives of eliminating wastes, reducing cost and improvement continuously based on the lean production. This model includes supplier selection and categorization, supplier improvement, supplier certification and supplier evaluation. First, the supplier selection process and some basic princ...

The past two decades of international experience with wholesale electricity markets has demonstrated that significant consumer harm can result from firms simply engaging in unilateral profit-maximizing behavior given the actions of their competitors. Different from other product markets, coordinated actions among suppliers or the concentration of production capacity in the hands of a small numb...

We consider a market with two suppliers and a set of buyers in search of procurement contracts with one of the suppliers. In particular, each buyer needs to process a certain volume of work, and each supplier’s ability to process the customers’ requests is constrained by a production capacity. The procurement contracts include guarantees that the products will be available when needed, and the ...