In a recent paper, Fisher et al. (2001) present a method tomitigate end-effects in lot sizing by including a valuation term for end-of-horizon inventory in the objective function of the short-horizon model. Computational tests show that the proposed method outperforms the Wagner-Whitin algorithm...

In this era of globalization we see an increase in specialization: the production chain issplit up in more and more parts and the production of these parts is outsourced to thoseplaces in the world where production is relatively cheapest and most efficient. Itimplies that transaction costs,...

The main aim of the paper is to highlight the relation between flexibility and vertical integration. To this purpose, we go through the selection of the optimal degree of vertical disintegration of a flexible firm which operates in a dynamic uncertain environment. The enterprise we model enjoys...

This contribution presents an efficient solution method for solving the major short-term planning problems which occur, if lot production has to be managed. In our focus are the two most important aspects, i.e. lot sizing and scheduling. Since both problems heavily interact, we propose an...

In this paper we consider the following problem: a Company wants to sell consecutive time slots on a single machine. It wants to maximize the revenues, whereby market prizes are not known. Additionally, consider a number of potential buyers of those time slots providing each at least one job....

* Die energieintensive Industrie kann zum Ausgleich volatiler Stromeinspeisungen und somit zum Gelingen der Energiewende beitragen. * Digitalisierungsprozesse ermoglichen die Flexibilisierung der Produktion, wodurch die Stromnachfrage steuerbarer wird. * Gegenwartig sind die Anreize zur...

Als Resultat der Metallerzeugung und -verarbeitung fallen zwangsläufig eine Reihe von Abfällen an. Zur Aufbereitung und Verwertung eines Teils dieser Kuppelprodukte, hauptsächlich Stäuben und Schlämmen aus Gasreinigungen, konnte sich in den vergangenen Jahren die Verwertung in modifizierten...