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Study of the influence of nanoparticles on water properties
Šram, Matěj ; Komendová, Renata (referee) ; Řezáčová, Veronika (advisor)
This work deals with the study of the influence of platinum nanoparticles with a size of 3 nm on the properties of water in a porous system. SiO2 with a defined pore size was used as a porous system, which can simulate the mineral component of the soil. The theoretical part deals with the properties of free and porous water and the impact of nanoparticles on the environment. In the experimental part, the properties of free water, water in the porous system and the influence of the presence of platinum nanoparticles on these systems are investigated using differential scanning calorimetry (DSC). The observed processes were melting, solidification and evaporation, and derived quantities such as crystallization and melting point.
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Aircraft de-icing systems
Smékal, Aleš ; Bencalík, Karol (referee) ; Třetina, Karel (advisor)
The bachelor´s thesis is familiarization of me with icing on aircrafts. It includes the distribution systems for anti-icing and de-icing, energy intensity and efficiency are also included. It contains icing situations, which are very dangerous for aircrafts. Thesis shows possibilities, how to prevent ice formation, detect icing and keep pilot informed. And finally remove ice.
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Experimental research of fluids against icing of overhead wires
Málek, Jan ; Polach, Pavel (referee) ; Galas, Radovan (advisor)
In this thesis, commercially available anti-icing fluids were tested. A methodology of assessment was designed for the effect of anti-icing fluids on the rapidity of ice growth and its development over time. These tests were conducted on a device constructed for the purpose of the thesis. The solutions were tested for their effect on the ice adhesion to a contact wire. The effect of the solutions on the tribological behaviour of the collector strip and contact wire was described. The experiments were supplemented by mensuration of the size of the contact angle of the solutions on the copper surface. However, these fluids anti-icing effect is relatively short-term. On the contrary, the thesis shows that even a small amount of anti-icing solution on the surface of the contact wire can help to significantly lower the ice adhesion.
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Evaluation of rte_flow Network Interface Cards Support
Šuráň, Jakub ; Fukač, Tomáš (referee) ; Šišmiš, Lukáš (advisor)
Podpora klasifikačního rozhraní rte_flow se značně liší napříč různými síťovými kartami. Tato bakalářská práce se zabývá procesem testování této podpory. Hlavním cílem je vyvinout nástroje, které umožní provádět testování systematicky a automatizovaně. K tomuto účelu jsou využity dva přístupy. Ten první je založen na postupném nahrávání rte_flow pravidel do síťové karty a následném sbírání podporovaných vlastností z úspěšných pokusů. Ty jsou na konci využity k vytvoření závěrečného shrnutí. Druhý přístup naopak ověřuje, že jednotlivá pravidla opravdu mají očekávané efekty na pakety zpracovávané kartou. Každý z těchto přístupů byl následně transformován do podoby spustitelného nástroje. Oba byly aplikovány a otestovány na několika síťových kartách od společností Intel a NVIDIA. Zároveň byly výstupy obou z nich použity na vzájemné porovnání podpory rte_flow rozhraní na těchto síťových kartách.
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Design of mechanical, electrical construction and software equipment of autonomous cell "Ice crusher" for Industry 4.0 testbed.
Horák, Lukáš ; Benešl, Tomáš (referee) ; Pásek, Jan (advisor)
The goal of this bachelor thesis is design and construction of an autonomous cell on a production line with the purpose of being an „ice crusher“. The purpose of this cell is to be part of a Testbed. The cell will be controlled using a HMI touch panel and PLC 1200. Information about how much ice the cell should pour into a glass is stored in an NFC chip on the bottom of the glass. The first part of the thesis comprises of brief introduction to Industry 4.0 alongside with description of the default and current state of Industry 4.0 testbed. Another part describes mechanical and electrical design of the cell. Last part of the cell describes software of the cell alongside with description of testing and installing the cell to the testbed.
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Details
Svatoš, Jan ; Podoba,, Rastislav (referee) ; Mikyta, Svätopluk (advisor)
The work is an author's book of fifty copies. I deal with topics of structures, details and nature - I specifically focus on the forms of ice crystallization. The book is based on knowledge of my own way of thinking and creation and is a representation of my perception of the world that fundamentally influences my work. The book's content is poetic and consists of author's photographs, drawings and texts (except for a few citations).
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Autonomous cell "Ice cube feeder" for Industry 4.0 testbed
Mařas, Michael ; Kaczmarczyk, Václav (referee) ; Sýkora, Tomáš (advisor)
The bachelor's thesis deals with the description of the proposal and implementation of autonomous cells called Ice cube feeder. Gradually, we will learn how the implementation of autonomous cells in terms of design, electrical and programming. The concept represents the ideas of Industry 4.0. The entire production process follows the ANSI/ISA-S88 batch control standard, which describes the batch control process.
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Contaminated Runway Operations
Michna, Tomáš ; Hammer, Jaromír (referee) ; Šošovička, Róbert (advisor)
This bachelor thesis solves problem of operation from contaminated runway. It lists individual kind of contaminant and describes measuring, which is doing on contaminated runway. It also deals with devices for measuring friction coefficient runway surfaces. There are also the methods, which publishing informations about state of runway. At the conclusion compares the limits that are affected by contaminated runway.
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Actions on bridges caused by the water flow and floating items
Řezník, Jindřich ; Duchan, David (referee) ; Špano, Miroslav (advisor)
The subject of this thesis is the enumeration and analysis methods applicable to the calculation of loads on bridges from water and water-borne objects. It involves a hydrodynamics loads, loads from captured debris and from impacts of the individual water-borne objects and their clusters. It includes an assessment of the current situation, the teoretical analysis and model calculations on the concrete bridge with the evaluation of usable methods.
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Predicting spark-ignition engine emissions
Jirout, Petr ; Böhm, Michael (referee) ; Štětina, Josef (advisor)
This diploma thesis deals with the possibility of predicting emissions of SI engines. The aim was to create an algorithm for predicting unburned hydrocarbons and carbon monoxide, based on ECU signals. The algorithm is based on practical experiments with SI engines. In the summary, the issues and the possible use of the created algorithm following the incorporation of EU7 are outlined.
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