By Wolfgang Alt, Valter Böhm, Tobias Kaufhold, Elka Lobutova, Christian Resagk (auth.), Cameron Tropea, Horst Bleckmann (eds.)
This e-book is the ultimate document of the nationwide precedence application Nature-Inspired Fluid Mechanics (Schwerpunktprogramm SPP 1207: Strömungsbeeinflussung in der Natur und Technik). Nature-inspired fluid mechanics is one subset of biomimetics, a self-discipline which has bought elevated recognition over the past decade, with various colleges and measure classes committed exclusively to exploring ‘nature as a version’ for engineering functions. to save lots of locomotion power, evolution has optimized the layout of animals such that friction loss is minimized. as well as many morphological variations, animals which are frequently uncovered to water or air currents have built specified behaviors that let them to take advantage of the strength contained in air or water fluctuations for power reductions. Such movement manipulation and keep an eye on isn't just very important for lots of animals, but in addition for lots of engineering functions. considering that dwelling beings were optimized by way of numerous million years of evolution it's very most likely that many engineering disciplines can cash in on the research of structures present in nature. interestingly, there was little severe cross-disciplinary paintings and knowledge alternate related to fluid dynamics and circulate keep an eye on and this used to be the preliminary motivation to set up this nationwide precedence application.
Read Online or Download Nature-Inspired Fluid Mechanics: Results of the DFG Priority Programme 1207 ”Nature-inspired Fluid Mechanics” 2006-2012 PDF
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In his thesis Fluorescence in Bio-inspired Nanotechnology, Jonas Hannestad describes the evolving box of DNA nanotechnology in a lucid and simply obtainable approach. A important subject within the thesis is how organic buildings and mechanisms represent a foundation for the layout of novel applied sciences. Hannestad discusses how self-assembled, nanometer-scale DNA constructs may be functionalized utilizing fluorescent labeling.
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First, they reproduce in the carrier’s mid gut. Second, they travel through their host’s blood vessels and after passing through the blood-brain barrier they cause the deadly disease. The elongated cell body of trypanosomes has the shape of a spindle [see Fig. 1(c)] and the cytoskeleton is made up from microtubules, a very stiff biopolymer with a persistence length of order 1mm . The microtubules start from the thick posterior end and extend along the long axis of the cell body towards the thin anterior end.
On Robotics, München, pp. 1152–1157 (2010) 12. : Particle Image Velocimetry: A Practical Guide. Springer, Heidelberg (1997) 13. : Immediate and long-term galvanotactic responses of amoeba proteus to electric fields. Cell Motil. Cytoskeleton 45, 10–26 (2000) 14. : The behavior of unicellular organisms in an electromagnetic field. Exp. Cell Res. 20, 548–564 (1960) 15. : Electrophoresis of proteins and the chemistry of cell surfaces. Reinhold, New York (1942) 16. : Electrophoresis using a cylindrical chamber.
Larger viscosity means that the relaxation time under a static bending wave increases. So beyond ωw = 1, our model trypanosome does not pass anymore through quasi-equilibrium states. Clearly, increasing viscosity results in a decrease of the swimming speed since the drag force on the cell body increases. Ultimately, for very long time the model trypanosome will change its direction due to rotational diffusion of the cell body and will perform a random walk similar to the real trypanosome . However, in our simulations rotational diffusion would be only of thermal origin whereas in the real trypanosome intrinsic noise enhances the rotational diffusion constant .