In the first part of this paper we study minimal representations of simply connected simple split groups G of type Dk or Ek over local nonarchimedian fields. Our main result is an explicit formula for the spherical vectors in these representations. In the case of groups over R and C, such a formula was obtained recently in [8]. We also use our techniques to study the structure of the space of s...

Transshipment yards, where gantry cranes allow for an e cient transshipment of containers between di erent freight trains, are important entities in modern railway systems and facilitate the general shift from point-to-point transport to hub-and-spoke railway systems. Modern rail-rail transshipment yards accelerate container handling, so that multiple smaller trains with equal destination can b...

Automated guided vehicles (AGVs) are used to transport containers between the quayside and the stacking area in automated container terminals. The behavior of AGVs becomes complex when the trajectories of AGVs need to be scheduled with interacting machines, while satisfying collision avoidance constraints. This paper proposes a new two-level energyaware approach for generating the trajectories ...

This paper presents a component-based software architecture that enables a container terminal to optimize their energy demand and the flexibility of this demand. This flexibility is gained from using energy-intensive battery-powered Automated Guided Vehicles (AGVs) for container transport within the terminal. While Demand Response strategies are known and already applied in some industrial bran...

This paper describes the development of a minimum flow algorithm to determine the number of Automated Guided Vehicles (AGVs) required at a semi-automated container terminal. At such a terminal the containers are transported by AGVs from the Quay Cranes to the Automated Stacking Cranes and vice versa. A model and a strongly polynomial time algorithm are developed to solve the case in which conta...

When dealing with transportation problems Operational Research (OR), and related areas as Artificial Intelligence (AI), have focused mostly on uni-modal transport problems. Due to the current existence of bigger international logistics companies, transportation problems are becoming increasingly more complex. One of the complexities arises from the use of intermodal transportation. Intermodal t...