In this paper, we focus on an N-stage serial production-distribution system with limited production capacity at the first stage. Our objective in such a system is to find inventory management policies that minimize the global logistic cost, including transportation and holding costs. We use...

This work deals with the continuous time lot-sizing inventory problem when demand and costs are time-dependent. We adapt a cost balancing technique developed for the periodic-review version of our problem to the continuous-review framework. We prove that the solution obtained costs at most twice...

In this paper, we propose to study feasibility issues of a new air traffic paradigm. In this paradigm, aircraft are following immaterial moving points in such a way that no conflict (or at most few) occurs between aircraft. We provide lower and upper bounds on the maximum density of a solution....

The current air traffic system is forecasted to face strong challenges due to the continuous increase in air traffic demand. Hence, there is a need for new types of organization permitting a more efficient air traffic management, with both a high capacity and a high level of safety, and possibly...

Unlike the supply chain (SC) design problem which deals with the configuration of a new SC, the redesign problem assumes that a SC already exists and focuses on its reconfiguration in order to take profit of the changing logistics, financial, and fiscal advantages offered by each country. First,...