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Today no detailed ground trajectories exist; although trajectory based ground operations would improve the runway sequence optimization by more accurate taxi times. The aim of this study was to extend the time-based trajectory management to the ground and link it with departure management. A specific futuristic mean to achieve time-based trajectories on(More)
—This paper reports first results from a workshop to assess the feasibility of a new method of tool-supported time-based surface management. Using high-fidelity human-in-the-loop simulations, ground controllers had to manage traffic in adherence to time-based surface trajectories while being supported by a surface management system prototype and a departure(More)
BACKGROUND More than 170 weak or partial RHD alleles are currently known. A similar heterogeneity of RHCE alleles may be anticipated, but a large-scale systematic analysis of the molecular bases of altered C, c, E, and e antigenicity in European blood donors was lacking. STUDY DESIGN AND METHODS Between November 2004 and October 2006, samples collected(More)
The German Aerospace Center (DLR) and the National Aeronautics and Space Administration (NASA) have been independently developing and testing their own concepts and tools for airport surface traffic management. Although these concepts and tools have been tested individually for European and US airports, they have never been compared or analyzed(More)
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