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Metallization of technical plastics for lightweight traffic components with reduced fuel consumption
Sanetrníková, Dominika ; Boušek, Jaroslav (referee) ; Šimůnková, Helena (advisor)
The beginning of this thesis is dedicated to polymeric materials, which include plastics an composites. Plastics are shortly divided into two groups, thermoplastics and thermosets. The following part is the use of plastics and composites in traffic industry and briefly this work focuses on techniques of recycling of this materials. This work also focuses on the techniques of thin film deposition, electroless plating, electrodeposition as well and plating in the vacuum environment. special techniques of thin film deposition are also mentioned shortly. The coatings of polymer including cleaning and surface activation is introduced using various techniques including plasma treatment. The surface treatment of polyetheretherketone (PEEK) is included too. The final part describes performed experiments and discussion of results.
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Activation of retail centre
Šellongová, Slavka ; Matoušková, Petra (referee) ; Žalmanová, Petra (advisor)
(hyper- prefixoid? gr.? large, redundant, exaggerated) Shop fast. Shop efficiently. Close to. At the best price. Economically advantageous. Timesaving. Check-in and save time. Glory to the hypermarket. Finally, the effort to save time with shopping under one roof and the valuable idea of spending time with family or close friends somehow doesn't work. Trade and the market mean the movement of people, and it is not entirely possible for it to be marginalized. Because people are drawn where there are people, where there is business. Pulling from the city, the streets to closed worlds. To the boxes that are not interested in being part of the city. Except they still are. Even though they build a wall of parking spaces around them and operate on their island, they are still part of the city, although they do not want to see it. They are so looked at themselves that they also let people look only at themselves. Maybe they're just setting up a human mirror. What will be and what could be different in the future when looking for answers, what about empty spaces. How to answer it today. I come up with a specific example of a hyper-surplus-market in Bardejov, which remained after the departure of the Hypernova chain from the commercial market. The city lacks a hall that could be replaced by a sports hall deck. A hall where seniors would occasionally go to see their grandchildren's performances or where the petty bourgeoisie could enjoy and provoke the local amateur theatre. However, where teenagers would come to spend their free time even during a normal day, mothers would have a replacement for the park on cold days and people could find space to start their own business.
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Activation admixtures in concrete
Eger, Lukáš ; Hela, Vlastimil (referee) ; Hela, Rudolf (advisor)
The aim of my bachelor´s work is the summarization and focus on admixure concrete,and the active and inert admixure, which have some positive characteristies for fresh and hardened concrete. Theoretically, I tried to study the increase of their joining potential while this characteristic can be used by either chemici or mechnical way, their combination as well. I also Works on evaluetion of physically mechanical influence for fresh and hardened concrete that can up to 60 days old while the cement was partly substituted by admixure of different character.
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Biological pretreatment sewages water
Rolenc, Martin ; Beňo, Zdeněk (referee) ; Pěček, Jan (advisor)
This bachalors thesis is essay about biological pretreatment of sawages water. This procces is described in example of pretreatment plant in Svatoborice – Mistrin. Main part is applied to activation procces, in which are the most of dangerous substances separated. The important parameters are calculated.
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Container sewage treatment plants up to 500 PE
Krejsová, Věra ; Kaštanová, Barbora (referee) ; Hluštík, Petr (advisor)
The aim of this bachelor´s thesis was making a survey of companies involved in producing container type waste water treatment plants in the domestic market. In the first part of the bachelor´s thesis there is an overview of types of plants, including the method of implementation, use and placement and subsequent operation. In the practical part there is a list of companies active in this field in the Czech Republic that were compared to each other in terms of technological, machine-technological and financial aspects depending on the population for which they are intended for. Data provided by these companies and their processing can be used in selection of container of waste water for expert and unprofessional public, which is considering the acquisition of container plant.
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Design of a Unified Mechanism of Shifting and Activation of the Parking Brake
Hagara, Adam ; Řehák, Kamil (referee) ; Prokop, Aleš (advisor)
This bachelor thesis deals with the design of a unified mechanism of shifting and activation of the parking lock. The theoretical part is devoted to a more detailed description of the current shifting mechanisms, synchrosystems and parking lock mechanisms. The practical part starts with the analysis of the movements and positions of the individual mechanisms, followed by conceptual designs and the selection of the most suitable one. This is followed by the final design elaboration, which includes the development of a force analysis and torque calculations. The functionality of the geometry of the designed mechanism is verified by dynamic analysis, while the other components of the mechanism are detailed. Finally, an FEM analysis of the components of the unified mechanism is performed to confirm the functionality of the selected design. The thesis also includes a drawing documentation attached in the annex.
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Brewery of Bruntál
Zlámalová, Ivuna ; Boleslavská, Yvona (referee) ; Mléčka, Jan (advisor)
Strategy of restoring the city values and its identity considering the strengthening of its social and economic position according to the current needs." The task of my thesis is trying to find the genuinity again, which will be making the city more stable and sustainable.
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Study variants of specific wastewater treatment
Pernička, Jan ; Ručka, Jan (referee) ; Hluštík, Petr (advisor)
This diploma thesis explores treatment options of wastewater with a low presence of organic pollution produced by minor pollution sources. The research part describes objects with a low presence of organic pollution in wastewater and possible treatment methods in dependence of pollution source's size. The practical part contains the design of technological options of treatment of wastewater with a low presence of organic pollution for a specific object.
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Phosphate conversion coatings
Ševčíková, Barbora ; Trčka,, Josef (referee) ; Zmrzlý, Martin (advisor)
The main objective of the master’s thesis is to study the influence of phosphate coating structure on the mechanical properties of screw connection. The theoretical part describes the conventional phosphating process and it is followed by an analysis of current knowledge of phosphating technology. Experiments are carried out on screw valves mounted to a high pressure diesel pump by Bosch Diesel s.r.o., made of unalloyed carbon steel. To investigate the effect of the structure on the connection sealing, twelve kinds of phosphate coatings varying in one process parameter were prepared. The monitored parameters determining the phosphate structure are – type of phosphate and activation bath, its temperature and concentration and time of immersion. The sealing connection is examined during simulated assembly process by angle controlled tightening while measuring torque and permanent material deformation. Prepared layers are characterized by determination of weight per unit area and their structure observed by electron microscope.
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