Titel Deelnemers "Korte inhoud" "Assessment of the impact of an additional intermodal barge terminal on a waterway network" "An CARIS, Gerrit JANSSENS, Katrien RAMAEKERS, Cathy Macharis" "In this paper a discrete event simulation model for intermodal barge transport (SIMBA) is presented. The intermodal context in Belgium is described. The simulation model covers the hinterland waterway network of a major port in Western-Europe. The simulation modeling approach is elaborated. The SIMBA model is part of a larger decision support system for intermodal transport policy making (DSSITP). The simulation model is applied to analyze potential impacts of adding a new intermodal barge terminal to a hinterland network." "A comprehensive characterization of the nautical accessibility and traffic flow of the ECMT class Va inland waterway network of Nord-Pas-de Calais, France" "R. Adams, S. Page, Marc Mansuy, Katrien Eloot, S. Doorme, X. Thorel, C. Labourie" "A comprehensive characterization of the nautical accessibility and traffic flow of the ECMT class Va inland waterway network of Nord-Pas-de Calais, France" "Roeland Adams, Sebastien Page, Marc Mansuy, Maxim Candries, Katrien Eloot, Sarah Doorme, Xavier Thorel, Claire Labourie" "Reactivation of the small inland waterway network" "Edwin van Hassel" "Developing a small barge convoy system to reactivate the use of the small inland waterway network" "Edwin van Hassel, Thierry Vanelslander" "Decreased supply on the small inland waterway network" "Edwin van Hassel" "Developing a small barge convoy system to reactivate the use of the small inland waterway network" "Edwin van Hassel" "Assessment of the Impact of an Additional Intermodal Barge Terminal on a Waterway Network" "A. Caris, Gerrit K. Janssens, K. Ramaekers, Cathy Macharis" . "Optimizing fuel consumption on inland waterway networks" "Julian Arthur Pawel Golak, Christof Defryn, Alexander Grigoriev" "Fuel consumption and CO2 emission are among the main criteria to assess the environmental and economical impact of vessels on inland waterways. Both criteria, however, are directly affected by the vessels’ sailing speed. In this paper, we present a mathematical programming formulation of the speed optimization problem, which aims at minimizing the aggregated fuel consumption on an inland waterway network. The network can consist of multiple river segments, connected by a set of locks, without restrictions on the configuration. To allow scalability towards realistic waterway networks, we also propose a local-search based heuristic to optimize the speed for individual vessels. We evaluate the effectiveness of the heuristic by comparing it to solving the exact mathematical programming formulation. For all computational experiments, we make use of real AIS data from a section of the Dutch river network. We observe that the heuristic is able to construct a high quality solution in realistic problem settings within reasonable amount of computation time." "Secure communication in IP-based wireless sensor network via a trusted gateway" "Floris Van den Abeele, T Vandewinckele, Jeroen Hoebeke, Ingrid Moerman, Piet Demeester" "As the IP-integration of wireless sensor networks enables end-to-end interactions, solutions to appropriately secure these interactions with hosts on the Internet are necessary. At the same time, burdening wireless sensors with heavy security protocols should be avoided. While Datagram TLS (DTLS) strikes a good balance between these requirements, it entails a high cost for setting up communication sessions. Furthermore, not all types of communication have the same security requirements: e.g. some interactions might only require authorization and do not need confidentiality. In this paper we propose and evaluate an approach that relies on a trusted gateway to mitigate the high cost of the DTLS handshake in the WSN and to provide the flexibility necessary to support a variety of security requirements. The evaluation shows that our approach leads to considerable energy savings and latency reduction when compared to a standard DTLS use case, while requiring no changes to the end hosts themselves."