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In the surgery of the pituitary gland and other related areas of the skull base, the endoscopic endonasal surgery has established oneself as today's operation method. Although the surgeon is able to look around corners with the aid of an endoscope, the dissection in these areas is limited. Current suction devices are limited in their size, shape, bending and prone to kinking because of the narrow suction channel. The work with such inadequate instruments increase the risk of life-threatening complications, prolong the operation and limit the quality of a complete tumor resection. The ideal suction device would be adaptable to numerous surgery situations, easy to bend, maintain its lumen, adequate in their ratio of rigidity and formability, ergonomic and reformable to its original shape. In the following bachelor thesis, it is shown that this can be achieved with a suction device with shape memory alloy. After the development of a comfortable hand sample, the suction device went into preparation and a risk analysis was performed. The results of the evaluation process are reductions in operative risk, time and cost if this bendable suction device would be applied. Therefore, approval for the international market should be sought, to provide an opportunity for safer and more effective surgical procedures.
China
(2015)
Within this Bachelor Thesis the Chinese economic development with begin of the economic boom until today are described. With focus on the Austrian Business Cycle Theory by Ludwig von Mises and Friedrich Hayek the questions why and how economic bubbles develop are investigated and similarities between countries who experienced economic bubbles in the past and China analysed. The conclusion of the research is that the Chinese real estate market has indeed been caught in a boom-and-bust cycle and is at the moment going through recession. A future reoccurence of an economic bubble in China is possible.
Die Bachelorarbeit beschreibt die Entwicklung, die verschiedenen Arten und die Auswirkungen in der Theorie und an konkreten Beispielen von Ausländischen Direktinvestitionen. Der Schwerpunkt liegt auf Deutschland als Teil der EU bzw. Ausländischen Direktinvestitionen aus China.
Stereo matching methods are usually relying on rectified images to calculate disparities. If the rectification is inaccurate or not present at all most stereo matching algorithms will produce distorted disparity maps. In this thesis an approach is described that overcomes this issue for the PatchMatch Stereo algorithm. As groundwork for stereo matching four rectification procedures namely Bouget