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Analysis of Powertrain Acoustic Properties
Ambróz, Richard ; Novotný, Pavel (referee) ; Dundálek, Radim (referee) ; Píštěk, Václav (advisor)
Dizertačná práca rieši problematiku analýzy akustických vlastností pohonných jednotiek. V úvodnej časti je teoretický rozbor fyzikálnych princípov vibrácií a hluku a prehľad súčasného stavu riešenia problematiky v oblasti návrhu pohonných jednotiek. Vlastná časť práce popisuje konštrukčný návrh elektrodynamického budiča vibrácií, návrh hodnotenia výsledkov merania a taktiež spôsob spracovania výsledkov. Akustické vlastnosti sú hodnotené pomocou normálových rýchlostí kmitania povrchu. V závere práce sú prezentované ukážky využitia metódy v praktických príkladoch spojených s návrhom pohonnej jednotky. Celé riešenie predstavuje ucelený spôsob analýzy vhodný pre rýchle hodnotenie vplyvu konštrukčných úprav na akustické vlastnosti.
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Mobile IPv6 handover analysis
Klügl, Richard ; Hošek, Jiří (referee) ; Skořepa, Michal (advisor)
This master’s thesis is focused on IP mobility support for mobile users and their devices in IPv6-based wireless networks. Then the Mobile IPv6 (MIPv6) protocol was proposed for this purpose and that is also the main objective of the thesis. This consists of several basic sections and is organized as follows: The first one deals with the overview of the function of Mobile IP, which enables the mobility of nodes around the Internet, without a change of their original IP address. Moreover there are introduced the primary differences between MIPv6 and its previous version – i.e., MIPv4, proposed for IPv4-based environment. The second chapter of the master’s thesis thereafter describes detailed information about all the most important mechanisms and features of Mobile IPv6 and this way tries to explain principles of its functioning. Further the thesis analyses some of proposed MIPv6 extensions – i.e., Hierarchical Mobile IPv6 (HMIPv6), Mobile IPv6 Fast Handover (FMIPv6) a Fast Handover for HMIPv6 (F-HMIPv6) protocols, and mainly aim at signaling process during the handover of a mobile node. In the last main section of the master’s thesis an analytical method to evaluate the performance of IPv6-based mobility management protocols was proposed. Subsequently, this method is applied on the protocols which were mentioned above and are studied the effects of various network parameters on the performance of these protocols.
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Localization protocol for WSN with support of node mobility
Votava, Martin ; Šimek, Milan (referee) ; Holešinský, Pavel (advisor)
Work is focused on wireless sensor networks.The main theme is the mobility and localization in these networks. This work describes different methods and capabilities of mobile and localization schemes. This work describes a new localization protocol for wireless sensor networks. Finally, there is included a new protocol in the simulation at Network Simulator 2 and evaluate the results obtained.
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Interactions and imobilization of pharmaceuticals in soil systems
Šmerdová, Kateřina ; Krouská, Jitka (referee) ; Klučáková, Martina (advisor)
In these days, most non-steroidal anti-inflammatory drugs (NSAIDs), including diclofenac (DK), are considered as environmental contaminants. In this thesis, the sorption and desorption mechanisms of diclofenac in soils with different organic matter content were studied. The pH of the medium and its effect on DK adsorption by Britton – Robinson buffer were also studied. Last but not least, the spontaneous degradation of DK in water under sunshine was observed; depending on similar studies, the photodegradation product has been described. The value of pH and conductivity of all the samples were monitored continuously throughout the experiment. It has been found that the content of soil organic matter has a colossal influence on the drug sorption and desorption. Studied soil with a higher content of organic matter recorded higher adsorption of DK in all monitored koncentration of DK. Different pH values also affected the sorption and desorption of DK. By results, a neutral and alkaline environment supports the adsorption of DK more than an acidic environment. The samples were analyzed by UV-VIS spectrophotometry. Photodegradation of DK in water was successful after 4 months. The degradation product was analyzed by UV-VIS spectrophotometry and FTIR spectrometry. The product of fotodegradation could probably be carbazole derivative.
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Application of sustainability principles in transport
Nevrlá, Alice ; Sluková, Michaela (referee) ; Holcner, Petr (advisor)
This master’s thesis summarizes the sustainable transport issues and practical applications in this field. It also deals with components of non-sustainable transport, European Union's policy and explores the theory of externalities in sustainable transport. On a practical example - parking in the Brno city center, is finding a solution to the problem of insufficient parking capacity, using principles of sustainable transport
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Evacuation of Disabled Persons from Hight Buildings
Marek, Milan ; Mika, Otakar Jiří (referee) ; Kyselák, Jan (advisor)
In the introductory part the Bachelor´s thesis solves an evacuation of people complex, especially its inclusion in valid legislation of Czech Republic. Secondly, the categorization of incidents and means of separation of evacuation. Then, this work gradates to an evacuation of persons with reduced mobility, with a focus on social care sphere. The aim is to define an incident and all factors affecting the evacuation of persons and the identification of facilities of escape routes in buildings with residential care. In the last part of my work are described recent state solutions of people evacuation in social care institutions, based on monitoring made of selected residental care providers.
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Simulation of advanced access control functions in wireless networks
Uher, Václav ; Hošek, Jiří (referee) ; Molnár, Karol (advisor)
The work deals with the verification of methods to ensure quality of service and mobili-ty in wireless networks using OPNET Modeler program. It examined the possibility of adjustment the link layer model in order to achieve a better service compared to the model according to IEEE 802.11e and without support implementation of the quality of service. The results of simulations show that quality of service support is one of the key characteristics of wireless network deployment for applications demanding low delay and jitter such as voice services. After modifying the algorithm for calculating the wait-ing times for slow-growing window with specific parameters for the transfer haven’t changed so much that wasn’t worth to enforce it for deployment in the real world. Fur-thermore, it is examined to support mobility and service stations on the network layer. Here I had to tackle the problem in the transition from one network to another. Station, although almost immediately switched from one BSS to the other he, but when examin-ing the chart of received data at the application layer were apparent failures of transmis-sion of orders in a few seconds, which for high-quality voice services is not acceptable time interval. Lowest values were achieved using wireless bridges, the shortest period of failure of income data was 3.5 s. Up to that lack of support for the model of service quality work without problems.
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attributes of corporeality
Lukešová, Eva ; Bartlová, Milena (referee) ; Gabriel, Michal (advisor)
My thesis titled Attributes of corporeality is a continuation of my thinking on the topic of identity. Now I approach identity as a category, not as an identity that belongs to a particular person. I consider the question of how is identity shaped in a postmodern, globalized world and how is it related to corporeality. My answer is based on the reality I know, on the current state of society. However, the intention of my work is above all to express my idea, which is rather a utopian scenario than anything else.
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Everyday Life Changes Amongst Erasmus Students in Durham, England, During the COVID-19 Pandemic
Jindráková, Karolína ; Slavková, Markéta (advisor) ; Zandlová, Markéta (referee)
This thesis explores the transformations in the everyday lives of Erasmus students during their study placement in Durham in the academic year 2021/2022. The aim of the thesis is to explore whether and to what extent the Erasmus students' departure and everyday lives were affected by the Covid-19 pandemic, how and through what strategies they coped with the changing conditions and anti-coronavirus measures in the UK, and what other risks they experienced during their stay. The theoretical part firstly focuses on everyday life, then on migration, its types and migrant students, and finally on international education, also its types and where Erasmus mobility fits into international education. The thesis is based on ethnographic research, especially participant observation, semi-structured interviews, and auto-ethnography. The interpretation of the data thus suggests that Erasmus students were in a way affected by the Covid-19 pandemic, particularly during their arrival in the UK. Their actual stay was not so much affected, as there was first an acceptance of the measures and then a loosening of the antiviral measures. In addition to Covid-19, their stay was also significantly affected by gender- based violence. Key words Erasmus, Migration, Mobility, International Education, Covid-19, Erasmus...
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