This paper presents a linear programming approach to analyze and optimizeow lines with limited buer capacities and stochastic processing times. The basic ideais to solve a huge but simple linear program that models an entire simulation run of amulti-stage production process in discrete time, to...

In this paper, we present a bounding methodology that allows to compute a tight lower boundon the cycle time of fork--join queueing networks with blocking and with general service timedistributions. The methodology relies on two ideas. First, probability masses fitting (PMF)discretizes the...

Proposals are often made to tax goods which are environmentally damaging. Manysuch goods are consumed both directly by households and industry at large: for example,carbon-intensive fuel, waste water or congested road space. This paper adopts a tax-reformsetting to evaluate such a policy. The...

Die Autoren stellen einen Ansatz vor, mit dem das Erfahrungswissenüber die Produktionsregelung mit künstlichen neuronalen Netzenso aufgearbeitet und strukturiert werden kann...

In this paper we propose a hybrid ACO approach to solve a full truckload transportation problem. Hybridization is achieved through the use of a problem specific heuristic.(...)

Given a finite set of spheres of different sizes we study the three-dimensional StripPacking Problem (3D-SPP) as well as the three-dimensional Knapsack Problem (3D-KP).The 3D-SPP asks for a placement of all spheres within a cuboidal strip of fixed width andheight so that the variable length of...