National Repository of Grey Literature 18 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
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.
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.
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).
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.
Nanodevices on graphene prepared by AFM mechanical lithography
Lipták, Daniel ; Kovařík, Martin (referee) ; Švarc, Vojtěch (advisor)
Táto bakalárska práca je o testovaní možnosti a účinnosti použitia mechanickej litografie pomocou mikroskopu atomických síľ ako spôsob vytvárania nano-štruktúr. Pomocou Kelvinovej silovej mikroskopie, izolačné schopnosti pripravených bariér sú potom potvrdzované.
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.
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.
Evaluation of the Financial Situation in the Firm and Proposals for its Improvement
Kovařík, Martin ; Rompotl, Jaroslav (referee) ; Luňáček, Jiří (advisor)
This bachelor’s thesis analyses the financial situation of company KARAT software, a.s. between the years of 2013–2017, with the use of chosen methods of financial analysis. Based on the results, the financial situation of the company is collectively evaluated and then recommendations are designed, that could improve current financial situation of the company.
Comparison between groups of radical football fans in Czech repuplic and neighbour states (BRD, Poland) and their change from the migration point of view.
Kovařík, Martin ; Stracený, Josef (advisor) ; Samek, Tomáš (referee)
The focus of this master thesis is the comparison of extreme football fans, more specifically ultras and hooligans in the Czech Republic, Germany, and Poland and the influence of the European migrant crisis on these groups. In the theoretical part of the thesis, the general characteristics of the hooligans subculture, its origins, and development will be described. Furthermore, the functioning of the extreme fan groups in the neighbouring countries of the Czech Republic, i.e. Germany and Poland will be outlined. Moreover, the political stances of these countries on the issues related to the migrant crisis are depicted. These stances have a large impact on shaping of public opinions, including the aforementioned groups. The analytical part of this thesis consists of six interviews. These interviews should help with understanding the views on the migration of the members of the radical fan groups in the selected countries and moreover closely depict the hooligans scene across specific regions. The goal of this thesis is hence to depict the origins, development, and the members of a hooligans subculture on one side. And on the other side, to explain how the European migrant crisis (historical phenomenon of the past decade in Europe) has influenced the stances of the hooligan subculture on the influx...
Problematika dojicích robotů Lely
KOVAŘÍK, Martin
This thesis is focused on milking robots. In teoretic part I deal with biologics and etologics factors of milking technology. As well as I am interested in historics development of milking technologies. I introduce current technical request on milking too. Breefly I am introducing modern producents of automatic milking technology and economic question of using the automat. In practise part I evaluate data from working of the milking automat of branch LELY in mutual production relationship. Time period in research are one day and some parameters from more than one year. The subject of research are two farms involved in organics farming and one farm is involved in conventional farming.

National Repository of Grey Literature : 18 records found   1 - 10next  jump to record:
See also: similar author names
16 KOVAŘÍK, Martin
10 KOVAŘÍK, Michal
2 Kovařík, M.
1 Kovařík, Marek
4 Kovařík, Matěj
1 Kovařík, Michael
10 Kovařík, Michal
1 Kovařík, Milan
3 Kovařík, Miroslav
4 Kovářík, Matěj
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