Browsing by Author "Petráň, Aleš"
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- ItemHodnocení tribologických vlastností keramických materiálů(Technická Univerzita v Liberci, 2009) Petráň, Aleš; Šída, DanielIn present time more and more construct cases are based on aplication of technical ceramics, or aplication of technical ceramics in contact with some other materials, like steel. Main goal in this work is find out abrasion or behaviour of materials, like metal in contact with ceramics, which is important for friction characteristics, which affecting use of materials in final product. This work expertising characteristics, like dependance of abrasion of ceramic materials in time, or dependance of abrasion of ceramic materials on hardness.
- ItemVyužití plazmových procesů v biologii a lékařství(Technická Univerzita v Liberci, 2012) Petráň, Aleš; Horáková, MartaThis thesis deals with the use of plasma discharges in a functionalization of nanofiber materials for their further use in medicine and also engaged in sterilizing the surface of nanofibers. The first part of the experiment is focused on the surface functionalization of nanofibres using microwave plasma discharge in order to later establish their drugs for controlled release. Verification of the establishment of functional groups was carried out ESCA analysis. In the second part of the experiment surface of nanofibers were sterilized from bacteria E. coli and S. aureus, again using microwave plasma discharge. Validation of sterilization of microorganisms was done according to the AATCC standards.
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