Jörg Schulze

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A blade geometry design method is proposed in this paper, which adopts a novel kinematic ruled surface approximation algorithm. The algorithm is applied to approximate a free-form blade surface as a ruled surface in order to reduce the manufacturing cost. By applying Klein mapping and Study mapping, a ruled surface in Euclidean space is transformed to a(More)
INTRODUCTION The refugee crisis is a great challenge to the social and healthcare system in European countries, especially in Germany. An abundance of data has been published on the refugees' health problems (infections as well as physical diseases and psychiatric problems) and their prevention (i.e., sanitary and vaccination programs). However, data on(More)
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