Investigation of surface-liquid-interaction on flat bugs (Aradidae), selected European true bugs (Heteroptera), and transfer of principles onto technical surfaces
| Autor: | Hischen, Florian |
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| Přispěvatelé: | Bräunig, Peter, Baumgartner, Werner |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Aachen 1 Online-Ressource (158 Seiten) : Illustrationen, Diagramme (2017). doi:10.18154/RWTH-2017-09172 = Dissertation, RWTH Aachen University, 2017 |
| DOI: | 10.18154/rwth-2017-09172 |
| Popis: | Dissertation, RWTH Aachen University, 2017; Aachen, 1 Online-Ressource (158 Seiten) : Illustrationen, Diagramme (2017). = Dissertation, RWTH Aachen University, 2017 The present work investigates surface-liquid-interactions that occur on neotropical flat bugs from the genus Dysodius (Aradidae) and selected European true bugs (Heteroptera). In case of Dysodius water- as well as oil-based interaction are researched. The former enabling the fascinating phenomenon called “adaptive camouflage” on these bugs, the latter concerning directional, passive fluid transport in the external scent efferent system (defense secretion system). European bugs are investigated with regard to comparable functionality of their scent efferent system only. Morphological studies are carried out by means of scanning- and transmission electron microscopy in order to extract fluid-interaction relevant body features. Chemical studies, like GC-MS and HPLC-MS, are used as means to figure chemical composition of surface waxes. Fluid-flow studies are carried out via high-speed video capturing, followed by custom algorithm analysis with the goal of understanding the surface-fluid-interaction dynamics. By means of laser ablation and casting, different materials (like steel and polymers) are provided with artificial fluid-transport channels, biomimetically abstracted from the bugs and their performance is analyzed by above mentioned techniques. In the end of this work a novel approach for the fabrication of thermal conductive all-metal replicas of biological samples is presented that will enable even more sophisticated investigation ways for phenomena like evaporation and condensation in the future. Published by Aachen |
| Databáze: | OpenAIRE |
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