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Material printing of identification signs
Šerík, Matej ; Vališ, Jan (referee) ; Veselý, Michal (advisor)
This bachelor thesis deals with material printing, focusing on the preparation and analysis of clichés for pad printing, the optimization of functional compositions deposited by a hand held pad printing machine on PET films, and the characterization of these deposited layers. Two fluorescent compositions with different fluorescent derivatives were prepared, which, upon excitation with electromagnetic radiation, emitted specific infrared radiation, allowing them to be distinguished. The fluorescent compositions were applied to PET films using a hand held pad printing machine. The optimal concentration of fluorescent derivatives in the compositions and the ideal layer thickness to achieve the maximum intensity of fluorescent emission were determined. One of the objectives of the work was the preparation of scent markers by encapsulating peppermint essential oil in liposomes, which allows controlled release of the fragrance after mechanical disruption. The scent markers were not homogeneous but showed the desired properties after the disruption of the microparticles. However, the use of screen printing compared to pad printing resulted in better homogeneity ofthe scent markers. Steel clichés were found to be the most suitable for the application of all layers, whereas glass clichés could be an attractive alternative when prepared by higher resolution laser engraving.
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Material printing of UVB disposable dosimeter
Fryčová, Gabriela ; Ettler,, Karel (referee) ; Veselý, Michal (advisor)
The aim of the bachelor's thesis was the preparation of photosensitive layers responding by colour change to the exposure dose and their subsequent calibration to UVB irradiation doses of 500 and 1 000 mJcm2 using calibration agents and layer thickness change. The experimental part focuses on the preparation and application of the layers and the study of their colour response to the exposure dose. The validity of the reciprocity law was verified. The simplicity of preparation and use of the resulting disposable UVB dosimeters was emphasized.
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Marketing Mix of Sport Club
Veselý, Martin ; Mráček, Pavel (referee) ; Milichovský, František (advisor)
The bachelor thesis is focused on the marketing mix of the company SK JeMoBu. In the theoretic part are mention needed basic terms as marketing mix, marketing environment, analysis etc. The analytic part is focused on detection current condition of marketing mix of the club. Thesis contains proposal part where are describe changes for improvement.
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Cohesive elements applied to advanced numerical simulation of concrete fracture
Veselý, Martin ; Mašek, Jan (referee) ; Miarka, Petr (advisor)
This bachelor’s thesis deals with the issue of a cohesive approach to modeling the fracture response of heterogeneous materials, such as concrete. This approach is one of the advanced methods for modeling fracture damage in heterogeneous materials. The first part introduces and describes the theoretical principles that need to be known and understood when modeling cohesive elements. In the practical part, single-element models were first created to verify the material properties of cohesive elements. Then complex geometry is created, which is subjected to a pressure test simulation. In conclusion, an evaluation of this approach to modeling in 2D is carried out.
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Protection of prints by varnishing
Lokotschová, Radka ; Dzik, Petr (referee) ; Veselý, Michal (advisor)
This bachelor thesis deals with the issue of basic inkjet printing principles. It describes the continual stream and the drop on demand technique. It also deals with the issue of paper media, which are used during the inkjet printing – supporting bases and receiving layers. The thesis includes a description of print degradation, which is caused by UV-VIS radiation, pollutants, humidity or by elevated temperature. It also deals with the basic characteristics of varnishing and lamination.
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Mesoporous and microstructured layers of titanium dioxide
Lepičová, Martina ; Ing. Viera Jančovičová,Ph.D. (referee) ; Veselý, Michal (advisor)
This bachelor thesis provides an overview of modern ways of titanium dioxide thin layer preparation including material printing and their principles. Preparation of tetrabutoxide sol as a precursor of titanium dioxide with diethanolamine and polyethylene glycol as templating agents and its delivery to glass substrate by material printing is described. This work is focused on characterization of prepared thin layers of titanium dioxide by optical microscopy and making of microphotography database of prepared samples.
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Photocatalytic activity of printed hybrid layers of titanium dioxide
Sýkorová, Kateřina ; Krystyník, Pavel (referee) ; Veselý, Michal (advisor)
The main aim of this thesis was to optimalise composition of the titanium dioxide with a silica binder deposited on a PET foil. Emphasis was put on achieving maximum possible adhesion and hardness of the layer and the effect on photocatalytic activity. For the evaluation of photocatalytic activity comparative experiments with prepared layers were performed. Benzoic acid, dimethyl sulfoxide and azo dye Acid Orange 7 were used as model pollutants. Photocatalytic activity was investigated using UV-VIS spectrophotometry, formal rate constants and degree of conversion were also determined. The study results can be used for removing water pollutants from the water solution.
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Indoor Robot - Mechanical Construction and Power Electronics
Maťas, Marek ; Veselý, Miloš (referee) ; Žalud, Luděk (advisor)
The thesis is divided into several logical units. In the first part is described the topic of mobile robotics, construction, propulsion and control of mobile robots. Other parts are devoted to the design of robot’s mechanical structure, calculating the requirements for the proposed type of engines and drives. Finally, the control electronics for these engines is proposed, along with a program for microcomputer.
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