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Solar charger with embedded accumulator
Háněl, Petr ; Dušek, Martin (referee) ; Kubíček, Michal (advisor)
The mobile devices are under rapid development today and thereby they put still more challenging requirements on charging technologies. The thesis deals with design and development of an off-line charger device for travel use. It is based on an accumulator that is being charged continuously using a solar cell. Alternatively the accumulator can be charged using a standard USB port. One of the key requirements on the device was simplicity of its circuitry in order to make the device cheaper and more reliable. The device is able to supply any mobile device that is using a standard USB port.
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On-board Computer Unit with Testing for Cars
Špatenka, Jan ; Navrátil,, Vlastimil (referee) ; Dušek, Martin (advisor)
This thesis deals with the design and implementation of on-board computer unit with testing for cars. The first part focuses on circuit design concepts. Measurement data acquisition module uses standard OBD2. The module is designed based on the measuring circuit STN1110. Measuring module equipped with USB and JTAG communicates with the nearby devices. The control module is equipped with ARM microcontroller. The second part deals with the implementation of software for the microcontroller and the PC application. Finally, test results of the on-board computer implemented are presented.
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Doppler's sensor beat freqeuncy proccessing
Dušek, Martin ; Macho, Miloslav (referee) ; Fuchs, Michal (advisor)
This work is engaged in ways of objects speed measuring mainly helped by Doppler Effect. The sensor HB410 is described in this work and its possible elaboration output heterodyne analog signal. The calculation of objects speed is deduced from frequency of heterodyne signal. In this work is projected circuit solution for elaboration of analog signal and its digitalization. Available types and nature of microcontrollers which are elaborating digital signal and communicating with PC are summarized in this work. In the last chapter is described microcontroller's driving software and PC software for speed measure.
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Control unit for an industrial convection oven
Augustin, Stanislav ; Dušek, Martin (referee) ; Kubíček, Michal (advisor)
The contents of this semestral thesis is to explore ways to design of controll unit for convection oven for prototype transformers production for welding technology and design a scheme of the unit. The controll unit must be able to regulate the ambient temperature inside the oven using a power management of heating elements (for example heating rail) inside the oven.
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Legislation for waste management from the trader's point of view
Dušek, Martin ; Sobotka, Michal (advisor) ; Žákovská, Karolina (referee)
1 Abstract Legislation for waste management from the trader's point of view The diploma thesis deals with the legal regulation of waste management from the perspective of the trader with regard to Act no. 541/2020 Coll. on waste and Decree 1013/2006 in the case of cross-border shipments of goods. The main objective of this work is to provide a comprehensive analysis of the relevant legislation de lege lata. The first chapter is devoted to waste management and the sources of legislation at the international, European and national levels. The second chapter specifies the basic concepts of waste management relevant to the trader. In the third chapter, the author approaches the subjects of waste management, with which the trader can get in touch in his activities and relationships. The fourth chapter, which together with the fifth chapter forms the focal point of the work, deals with the trader, whereas the author first enshrines the role of the trader in waste management by discussing the motivation to trade in waste, and further defines the waste trading itself. This chapter describes the procedure of the regional office, the result of which is the issuance of a waste trading permit for a certain type and category of waste. The work also creates space for comparison with the institute of waste management...
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The effect of selected parameters of stream water on gill morphology of brook charr and the structure of ichthyofauna of the Jizera Mountains
Hušek, Jiří ; Švátora, Miroslav (advisor) ; Dušek, Martin (referee)
The occurrence of ichthyofauna on the territory of the Jizera Mountains (Northern Bohemia, Czech Republic) is limited, besides other factors, by the water chemistry. pH value and pH-related concentration of inorganic monomeric aluminum (Ali) are crucial parameters of the water, determining the survival of fish in streams. Low pH and high concentrations of Ali cause severe damages to fish gills. The thesis deals with the influence of the water chemistry on distribution of ichthyofauna in the Jizera Mts and gill morphology in brook charr (Salvelinus fontinalis), a dominant fish species of the upper plateau of the mountains. The results show that the species diversity of fish in acidified streams is lower than that in streams without meaningful acidic episodes. Histopathological analyses of gills of brook charr individuals from an acidified stream confirm, that low pH values and high concentrations of Ali have a cummulative effect and lead to degenerative changes on gills. Key words: The Jizera Mountains, ichthyofauna, brook charr, gill morphology, water chemistry, toxic aluminium, acidification
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Clinicopathological aspects and differential diagnostics of Lynch syndrome
Dušek, Martin ; Daum, Ondřej (advisor) ; Zámečník, Josef (referee) ; Šíma, Radek (referee)
Lynch syndrome (LS), formerly known as hereditary nonpolyposis colorectal cancer (HNPCC) is a familial cancer syndrome with an autosomal dominant inheritance pattern. Its genetic basis is most commonly a germline mutation in one of the mismatch repair (MMR) genes, that are responsible for correction of errors ocurring during DNA replication. Dysfunction of this repairing system leads to the formation and progression of tumors, especially colorectal cancer (CRC). According to the literature LS represents 3-5 % of all CRC. Additional extracolonic tumors associated with LS include endometrium, ovary, stomach, small bowel, pancreas, hepatobiliary tract, upper uroepithelial tract, brain and cutaneous sebaceous tumors. Early age of onset is a typical feature of LS-associated tumors, in comparison with general population. Malignancy is often the first manifestation, therefore the LS diagnosis is important not only for the individual patient and his next management, but also for his family members. An exception is represented by the formation of cutaneous sebaceous tumors prior to internal malignancy in one of LS phenotypic variant, called Muir-Torre syndrome. Properly selected screening methods can prevent the formation of malignant tumors by early detection of their premalignant lesions, or at least early...
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Single Purpose Machine for Latch Subassembly Assembly
Dušek, Martin ; Tůma, Zdeněk (referee) ; Knoflíček, Radek (advisor)
This bachelor’s thesis deals with design of single purpose machine for car latch subassembly assembly. Research part describes issue of production of car locks with the introduction of single purpose machines and their main components. The practical part is accompanied by the design of automated station assembling a torsion spring into a plastic molding.
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Laboraty Pulse Power Supply Using Output Linear Stabilization
Lednický, Marek ; Dušek, Martin (referee) ; Šebesta, Jiří (advisor)
This thesis deals with switched mode power supplies. The theoretic part of the thesis consists of historical development and the elementary schemes of switched mode power supplies. It also includes the comparing with linear regulators. Next, it contains the description of individuals parts switched mode power supplies as a rectifiers, power supplies and stabilizers. There is a proposal and fixing of laboratory pulse power supply using output linear stabilization in the practical part of the paper.
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Development of local roads in Přibyslavice
Dušek, Martin ; Halodová, Klára (referee) ; Všetečka, Martin (advisor)
The aim of the diploma thesis is to help the town of Přibyslavice with the development of local communications. This includes project work based on the current needs of the town and related consultations with local representatives and building authority. First, a passportization of local communications was drawn and subsequently, widening of the communication network by three new roads was suggested. This will enable creation of new building plots. New sewage and rainwater drainage, together with water conduit, were designed. Emphasis was put on avoiding interference with plots not owned by the town, on comfortable access to currently used plots, safe connection to the existing regional road no. III/3798, and sufficient radius for passage of firefighters and a garbage truck.
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