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Strain- stress curves of human hairs
Kernerová, Michaela ; Kuchařová, Monika (advisor) ; Klemera, Petr (referee)
Charles University in Prague Faculty of Pharmacy in Hradec Králové Department of Biophysics and Physical Chemisty Candidate: Michaela Kernerová Supervisor: Mgr. Monika Kuchařová, Ph.D. Title of diploma thesis: Strain- stress curves of human hair Department of Biophysics and Physical Chemistry Faculty of Pharmacy of Charles University in Hradec Králové studies since many years the influence of mechanical stress on biological structures. Human hair is one of these biological structures that turns out to be interesting for the further research. The subject of the thesis is to measure biomechanical properties of hair and their qualitative comparison by using Young's modulus E [MPa] and maximal stress σmax [MPa]. The aim of the thesis is to evaluate measuring potential of dynamic viscometer for measurement of static characteristics (strain-stress curves) of human hair. The theoretical part focuses on the anatomy of skin and describes biomechanical properties and structure of basic hair protein - keratin. The following chapter is devoted to the anatomy of hair and describes its cross-section area layers. Considering that hair is also subjected to various cosmetics rituals, the theoretical part of the thesis lists out the most common cosmetic treatments and hygiene habits concerning hair and their...

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