Search for dissertations about: "shark skin"

Found 4 swedish dissertations containing the words shark skin.

  2. 1. Friction drag studies on microfabricated surface structures : a new equipment, sample manufacturing and the first results

    Author : Håkan Rapp; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; riblets; microfabrication; plane channel; Friction drag; chevrons; shark skin; biomimetric; sand grain roughness;

    Abstract : .... READ MORE

  4. 2. Cloning, Expression, Pharmacological Characterization and Anatomical Distribution of Melanocortin Receptors in an Evolutionary Perspective

    Author : Aneta I. Ringholm; Helgi B. Schiöth; Dan Larhammar; Björn Olde; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacology; evolution; melanocortin; MSH; pharmacology; genome duplication; tetraploidization; zebrafish; spiny dogfish; chicken; GPCR; polymorphism; pigmentation; Farmakologi; Pharmacological research; Farmakologisk forskning;

    Abstract : The melanocortin (MC) receptors are G-protein coupled receptors thatparticipate in several important physiological functions such as the regulation of the energy balance. This thesis focuses on the evolutionary aspect of the MC receptors and their pharmacology.One MC4 receptor and two MC5 receptor subtypes were found in a teleost fish, zebrafish. READ MORE

  5. 3. Constrained optimization of rotor-bearing systems by evolutionary algorithms

    Author : Anders Angantyr; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Datorstödd maskinkonstruktion; Computer Aided Design;

    Abstract : In the design of mechanical components and systems, nature has often been the source of inspiration. It is easy to point out solutions in nature that are optimal in some sense. One example is the structure of the surface of a shark's skin. This is designed by nature to minimize the resistance when the shark swims in the water. READ MORE

  6. 4. Rotordynamic optimization of large turbo systems using genetic algorithms

    Author : Anders Angantyr; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Computer Aided Design; Datorstödd maskinkonstruktion;

    Abstract : In engineering design, nature has often been the source of inspiration. It is easy to point out solutions in nature that are optimal in some sense. One example is the roughness of the surface of a shark's skin. This is designed by nature to minimize the resistance when the shark swims in the water. READ MORE