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Anthropometric research of the adult population and its applications in interiors and architecture
Kovařík, Martin ; Petelen, Ivan (referee) ; Hronský, Michal (referee) ; Doc.Ing.Veronika Kotradyová,PhD. (referee) ; Šindlar, Jiljí (advisor)
This thesis focuses on research in the field of anthropometric measurements of the adult population, its history, basic concepts and research itself, conducted under the author’s leadership of the NIS project at the Mendel University in Brno. The research results and its application in the field of interiors and furniture should be used to revise the architectural patterns and standards dealing with the relations on the axis between man – interior – furniture. It describes the relations of individual parameters, a person's height and weight, their development depending on age and sex, compares the height curve growth in Czech population and in Europe. The results of the work should serve as a basis for revising the existing typological principles and standards with regard to new results; in conclusion the author proposes conceptual changes of the fixed schemes in relations of man and interior.
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Implementation of a function sample by the 3D printing technology
Kovařík, Martin ; Zemčík, Oskar (referee) ; Osička, Karel (advisor)
The diploma thesis deals with the analysis of the technological possibilities of existing 3D printers, which fall under the general concept of rapid prototyping. Furthermore, the work contains an analysis of the materials used based on plastics and an alternative to 3D printing from metal powders. The main goal of the work is the production of two functional samples and the design of their components for the experiment from three different materials. Specifically, it is about making a holder for a smart mobile phone of normal dimensions in an alternative for a car and in a version for office use. The parts were printed using FDM (Fusion Deposition Modeling) technology, using the three most available and common materials (so-called filaments) that this method uses, namely PLA, ABS and PET-G. As a result of the work, there are also proposals for functional testing methodologies with a focus on product life and technical-economic evaluation, thanks to which it is possible to determine which of the materials is most suitable for 3D printing of the mentioned samples.
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Influence of plasma activated water on seed germination and quality of corn
Kovařík, Martin ; Zlámalová Gargošová, Helena (referee) ; Kozáková, Zdenka (advisor)
The bachelor's thesis deals with the effect of plasma-activated water on corn germination. After water comes into contact with plasma, the water changes its chemical composition and thus, it acquires new properties that can be used in agriculture. The theoretical part is divided into two basic parts. At the beginning of the first part, plasma is briefly characterized, and then this part deals with plasma-activated water, its formation, physical and chemical properties, and at the end of this part, its use. The second part of the theoretical part is devoted to the germination of plants, external influences affecting germination and statistical evaluation of germination. At the end of the theoretical part, this thesis deals with the ecotoxicity of plants. The content of the experimental part was the preparation of PAW, its subsequent application to corn seeds and the study of its effect on germination and plant quality. PAW was created from distilled or tap water using three different plasma systems and the effect of each PAW on the seeds was compared with that of each control sample. The obtained results indicate a positive effect of PAW on seed germination, but the final hypothesis would require more extensive experiments in different environments, especially in soil.
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Antispam software plugin for e-mail filtering based on geolocation of the sender
Kovařík, Martin ; Komosný, Dan (referee) ; Caha, Tomáš (advisor)
This thesis deals with the creation of a module for antispam software providing email filtering using sender geolocation. The theoretical part of the thesis describes spam in general and the threats that spread through email communication, such as social engineering and malware. Then the principle of email and email headers, email filters and their methods to filter messages are described and lastly IP geolocation and machine location methods are described.The created filtering module Geolock was designed for the SpamAssassin antispam software and uses the IP2Location geolocation database. The embedding of the module into SpamAssassin is shown and the module itself and its different parts are described. The module is tested on a dataset and a real-life application is outlined. The Geolock module is published on GitHub under the MIT license (https://github.com/MartinKovarik/Geolock).
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Magnetic separator for recycling construction and demolition waste
Kovařík, Martin ; Zeizinger, Lukáš (referee) ; Škopán, Miroslav (advisor)
This work contains a search of available equipment for the separation of ferromagnetic material and the design of a specific design solution of a magnetic separator for the recycling of ferromagnetic waste from construction and demolition waste. According to the entered parameters, the calculations necessary for the correct design of the machine were performed. Part of the work is drawing documentation of selected parts and assemblies of the device.
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Creating a VPN Access Point on Raspberry Pi
Kovařík, Martin ; Hájek, Jaroslav (referee) ; Benedikt, Jan (advisor)
This bachelor thesis deals with creating a virtual private network (VPN) access point on a single-board Raspberry Pi computer. The theoretical part describes the principle of VPN, the most common tunneling protocols and the Raspberry Pi computer in general with its various generations and models. Selected protocols are implemented on the Raspberry Pi and their hardware load, response and throughput are measured. The stability of the protocols is tested and reliability evaluated.
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Characterization of electronic properties of nanowires for electrochemistry
Kovařík, Martin ; Čech, Vladimír (referee) ; Kolíbal, Miroslav (advisor)
Elektrochemické metody nacházejí využití v mnoha aplikacích (např. senzorice, skladování el. energie nebo katalýze). Jejich nespornou výhodou je nízká finanční náročnost na přístrojové vybavení. Abychom lépe porozuměli procesům probíhajícím na elektrodách, je dobré znát elektronickou pásovou strukturu materiálu elektrody. Úkolem této práce je vyhodnotit výstupní práci a pozici hrany valenčního pásu nových materiálů pro elektrody, konkrétně cínem dopovaného oxidu india pokrytého nanotrubicemi sulfidu wolframičitého. Ultrafialová fotoelektronová spektroskopie a Kelvinova silová mikroskopie jsou metody použité pro tuto analýzu. Zvláštní důraz je kladen na přípravu vzorků elektrod pro měření, aby nedošlo k nesprávné interpretaci výsledků vlivem vnějších efektů jako je např. kontaminace nebo modifikace povrchu.
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