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Kinetics of Inkjet Dyes Degradation
Buteková, Silvia ; Mikula, Milan (referee) ; Klusoň, Petr (referee) ; Veselý, Michal (advisor)
The stability of inkjet print is influenced by a lot of factors. Mutual effects of these factors accelerate the print degradation. The surrounding environment in image stability plays an important role, when the prints degrade especially by the light. The degradation of inkjet prints is presented as a decrease of dye or multiple dyes. It is necessary to know the dye concentration for the dye decrease prediction in the time. This dissertation thesis deals with the study of kinetics and changes in electron and molecular structure of digital photography prints after accelerated ageing tests. The study of resistance of inkjet prints was realized on one type of media using three different sets of inks. Changes in printed colours were measured and evaluated in calibration (by PLS calibration and least squares method). On the basis of calibration the dye decrease prediction of real samples in receiving layer was evaluated. Changes in electron and molecular structure were analysed on KBr pellets by FTIR an UV-Vis spectroscopy.
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LED based signal lights and luminaires for traffic applications
Mikula, Vladimír ; Baxant, Petr (referee) ; Drápela, Jiří (advisor)
Chief topic of a Master’s Thesis is comparing of conventional sources of light with LED diodes, their characteristics. This work deals with utilizing LED diodes in automotive lighting, in railway applications and universal information about principle of lighting. Else this work describes feasibility study of headlight of railway locomotive. Emphasis is laying for clearness of this work.
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Wireless M-Bus Key Retrieval
Mikula, Ondřej ; Matoušek, Petr (referee) ; Polčák, Libor (advisor)
This thesis aims to create a plugin for one of existing password recovery tools to extend its functionality to support encrypted messages of Wireless Meter Bus protocol. As a result, two plugins for the Hashcat tool have been implemented, supporting security modes 05 and 07 of Wireless M-Bus. Those modes are making use of the AES-128 encryption algorithm, so it is dealt with throughout this thesis. The resulting plugins are capable of speeds in range of tens to hundreds Mhash/s, which makes it unfeasible to check the whole AES-128 keyspace in a reasonable time. Nevertheless, if the searched keyspace is appropriately reduced, the created plugins make it possible to perform an security audit of the Wireless M-Bus deployment, which is required to be done by the specification.
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Study and mechanism of new-generation heterocyclic cytostatic with an emphasis on IL-6 andIL-8
Talianová, Veronika ; Jakubek, Milan (advisor) ; Mikula, Ivan (referee) ; Babula, Petr (referee)
EN The purpose of this study was to screen for novel synthetic inhibitors of interleukins IL-6 and IL-8, which are promising targets for cancer therapy. Small molecules are an attractive approach to inhibit these signalling pathways, which are known to be important for tumour cell growth and survival. The study aimed to discover new inhibitors of IL-6 and IL-8 signalling pathways by screening a small library of chemical derivatives, including π-expanded naphthalimide derivatives, Tröger's base, and pentamethinium derivatives. The structures of the compounds were designed based on in silico studies focusing on blocking the IL-6 and IL-8 signalling pathways. The study involved the use of various analytical and bioanalytical methods for the in vitro analysis of new potential anticancer drugs. The compounds were tested for cytotoxicity and their effect on cell growth using an MTT proliferation assay. Their antitumor activity was observed in NU/NU mice. The invasiveness of the cells was monitored using the wound healing assay. Live cell imaging was used to detect the distribution of the substances at the intracellular level. Other methods such as ELISA, microscale thermophoresis, and in silico predictions have been used to determine the selectivity of inhibitors of the signalling pathways IL-6 and IL-8....
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Wireless M-Bus Key Retrieval
Mikula, Ondřej ; Matoušek, Petr (referee) ; Polčák, Libor (advisor)
This thesis aims to create a plugin for one of existing password recovery tools to extend its functionality to support encrypted messages of Wireless Meter Bus protocol. As a result, two plugins for the Hashcat tool have been implemented, supporting security modes 05 and 07 of Wireless M-Bus. Those modes are making use of the AES-128 encryption algorithm, so it is dealt with throughout this thesis. The resulting plugins are capable of speeds in range of tens to hundreds Mhash/s, which makes it unfeasible to check the whole AES-128 keyspace in a reasonable time. Nevertheless, if the searched keyspace is appropriately reduced, the created plugins make it possible to perform an security audit of the Wireless M-Bus deployment, which is required to be done by the specification.
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Kinetics of Inkjet Dyes Degradation
Buteková, Silvia ; Mikula, Milan (referee) ; Klusoň, Petr (referee) ; Veselý, Michal (advisor)
The stability of inkjet print is influenced by a lot of factors. Mutual effects of these factors accelerate the print degradation. The surrounding environment in image stability plays an important role, when the prints degrade especially by the light. The degradation of inkjet prints is presented as a decrease of dye or multiple dyes. It is necessary to know the dye concentration for the dye decrease prediction in the time. This dissertation thesis deals with the study of kinetics and changes in electron and molecular structure of digital photography prints after accelerated ageing tests. The study of resistance of inkjet prints was realized on one type of media using three different sets of inks. Changes in printed colours were measured and evaluated in calibration (by PLS calibration and least squares method). On the basis of calibration the dye decrease prediction of real samples in receiving layer was evaluated. Changes in electron and molecular structure were analysed on KBr pellets by FTIR an UV-Vis spectroscopy.
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|
|
LED based signal lights and luminaires for traffic applications
Mikula, Vladimír ; Baxant, Petr (referee) ; Drápela, Jiří (advisor)
Chief topic of a Master’s Thesis is comparing of conventional sources of light with LED diodes, their characteristics. This work deals with utilizing LED diodes in automotive lighting, in railway applications and universal information about principle of lighting. Else this work describes feasibility study of headlight of railway locomotive. Emphasis is laying for clearness of this work.
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