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Study of adsorption of organic pollutants on wheat bran biochar
Hanák, Jan ; Pořízka, Jaromír (referee) ; Diviš, Pavel (advisor)
This diploma thesis explores the application of the Diffusive Gradients in Thin Films (DGT) method for determining and monitoring the concentrations of dissolved pharmaceuticals and organic dyes in water and food. The theoretical part introduces the issue of the occurrence of these organic substances in water and food, the principles of the DGT method, the characteristics of adsorption and adsorption isotherms, and the introduction of biochar as an adsorbent. The experimental section primarily focuses on optimizing and validating adsorption gels containing commercial biochar and unmodified biochar from wheat bran for the adsorption of specific substances using the DGT method. Oxytetracycline was primarily tested from a selection of antibiotics and malachite green from organic dyes, which is widely used in aquaristics. The results demonstrate a comparison of the effectiveness of adsorption using these two types of adsorbents and their characteristics, such as infrared spectroscopy analysis or images from a scanning electron microscope. From the Langmuir isotherm, the maximum adsorption capacity for oxytetracycline on commercial biochar was found to be 314,065 mgg-1 and the maximum adsorption capacity for wheat bran biochar was 89,720 mgg-1. The maximum adsorption capacity of commercial biochar for malachite green was 439,406 mgg-1. The work further emphasizes the potential of the DGT method as a tool for food analysis and investigating contaminants in water systems, which further move into the food chain.
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Documentation of Balkónová and Balkóta passages in Býčí skála cave
Velecká, Kateřina ; Kuruc, Michal (referee) ; Kratochvíl, Radim (advisor)
The bachelor thesis deals with documentation of the part of cave system Býčí skála, namely of the passages Balkónová chodba, Balkóta and part of the passage Kóta 314 in the form of a ground plan, extended longitudinal section and cross sections in the scale of 1:250. The thesis contains a short description of the locality, steps from recognition and completion of the existing measuring network to a detailed survey and creating of the final map in the JTSK coordinate system and the Bpv height system. For the detailed measurement was used a special speleological measuring method utilizing a device DistoX2 with a tablet and the program TopoDroid for creation of the measuring sketch.
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Nursery school
Kociánová, Nikol ; Bartolšic, Vít (referee) ; Matějka, Libor (advisor)
Diploma thesis is focused on the nursery schools project, which has two floors with a partial basement. Project documentation is at the level of construction execution. The building is located in the district of Frýdek-Místek, in the cadastral Palkovice. Part of the nursery are four units for children and facilities for the operation of the school. Nursery school is a brick of ceramic shaped Porotherm Profi on a masonry foam DRYFIX. The perimeter and interior bearing walls has a thickness of 300 mm, indoor walls are made of bricks PTH 11.5 Profi TL. 115 mm. On the basement walls are concrete block used shuttering tl. 300 mm. Foundation line are made of plain concrete. Ceiling creates the filigree plate with over concrete and the total thickness. is 250 mm. The roof of the buildding is a single-layer flat-lined brick parapet height of 500 mm. There are three prefabricated double staircase and a passenger lift. Lots of flat character is located at an altitude of 314,000 m above sea level Access to land is from the north side. The two main entrances to the building on the north and east facade. In the central part of the building are located facilities for staff and kitchen facilities. Staff entrance is on the south side. Preparing meals is two floors with windows facing north. Between the first and second above ground floor are designed 3 lifts. At the central part directly linked to the two wings of the building. In each wing there are two departments that can accommodate 20 children. The total capacity of the nursery school will therefore be 80 childdren.
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STAINLESS PART SHEET METAL FORMING
Rozmahel, Vladimír ; Podaný, Kamil (referee) ; Špaček, Jindřich (advisor)
The project elaborated in frame of Bachelor’s studies branch B2307. The project is submitting design of technology production of the flanged workpiece made of stainless steel 17 240. Based on results of initial study of the drawing topic, proposed solution was based on Guerin method split to three stages. The punch is replaced by rubber pad of rougness equal to 80ShA. The die is made of instrumental steel CSN 19 314.
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6 axis robot control in RTOS
Václavek, Miroslav ; Hrabec, Jakub (referee) ; Kučera, Pavel (advisor)
The thesis deals with the analysis, software design and the study of 3D kinematic model of robotic manipulator ROB 2-6. It creates the control software for this manipulator, containing user interface based on MFC applications. Moreover, the thesis is concentrated on the solution of various problems, e.g. non-linearity of servomotor or the limitation of manipulator´s attainability. Finally, it poses a documentation of the single project and offers new possibilities of further development in the control of this manipulator.
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Applications of thermoelectric generators
Kováč, Samuel ; Konečná, Eva (referee) ; Máša, Vítězslav (advisor)
The work describes the principle of thermoelectric conversion and the phenomenons by which it is mediated, it also deals with the factors that need to be sought in an effort to achieve the best efficiency of thermoelectric conversion. The next part includes an overview of case studies that serve as inspiration for the last, main part of this work, which will deal with the design of thermoelectric generator (TEG) integration. In this work found the procedure of selection of individual components that are not be excluded for the proper functioning of the thermoelectric generator. While the testing is performed on the basis of a mathematical model.It should confirm or refute the implementation of this project. Today, there is an electrical circuit including a thermoelectric generator, a DC converter, and wireless network sensors. The mathematical model confirmed that the TEG would be able to power -pressure, humidity and temperature sensors, at current of 0.314 A. The assumed temperature difference is 70 ° C. The work should acquaint the reader with the main pitfalls of thermoelectric conversion. It could also serve as a support in solving a similar problem of TEG implementation in a particular application.
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The Legal Regulation of Package Travel and the Impact of the Coronavirus Epidemic on It
Šlechtová, Klára ; Elischer, David (advisor) ; Hrádek, Jiří (referee)
1 The Legal Regulation of Package Travel and the Impact of the Coronavirus Epidemic on It Abstract The thesis deals primarily with the Czech private law regulation of package tours contained in Act No. 89/2012 Coll., the Civil Code, with an overlap into Act No. 159/1999 Coll., on certain conditions of business in the field of tourism and amending Act No. 40/1964 Coll., the Civil Code, as amended, and Act No. 455/1991 Coll., on trade business (Trade Licensing Act), as amended. Due to the fact that this is a fully harmonised area of law, Directive (EU) 2015/2302 of the European Parliament and of the Council on package travel and linked travel arrangements, amending Regulation (EC) No 2006/2004 and Directive 2011/83/EU of the European Parliament and of the Council and repealing Council Directive 90/314/EEC is also analysed. Particular emphasis is placed on the interpretation of certain provisions with regard to the epidemic of the covid-19 disease and its impact on the package travel market, through an analysis of the academic literature and recent case law. Attention is also paid to Act No. 185/2020 Coll. on certain measures to mitigate the impact of the SARS CoV-2 coronavirus epidemic on the tourism industry. As the name suggests, this act was enacted to mitigate the impact of the CoV-19 epidemic on tour...
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Package Tour (Section 2521 - 2549a of the Czech Civil Code)
Vondřejcová, Anna ; Salač, Josef (advisor) ; Zvára, Michael (referee)
Package Tour (Section 2521 - 2549a of the Czech Civil Code) Abstract The diploma thesis focuses on the description of the legal regulation of the package tour contract in the Civil Code and other legal regulations related to the package tour. The aim of the thesis is to describe and to analyse the legal regulation of the package tour contract in the Civil Code and in Act No. 185/2020 Coll., regarding some of the measures to mitigate the effects of the coronavirus epidemic reffered to as SARS CoV-2 on the tourism industry, also known as the so called Lex Voucher. The package tour contract is a key institution in the tourism legislation and is largely influenced by european legislation. Therefore this thesis also describes and often refers to the legal regulation of two basic directives, on which the regulation of the package tour contract in the Civil Code is based on. The essential directives are called Council Directive No. 90/314/EEC of 13 June 1990 on package travel, package holidays and package tours, and Directive (EU) 2015/2302 of the European Parliament and of the Council of 25 November 2015 on package travel and linked travel arrangements, amending Regulation (EC) No 2006/2004 and Directive 2011/83/EU of the European Parliament and of the Council and repealing Council Directive 90/314/EEC. Since the...
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New media as a means of obtaining information among secondary school students
Janovská, Markéta ; Jirků, Jan (advisor) ; Šimková, Karolína (referee)
This diploma thesis entitled New media as a means of obtaining information among secondary school students deals with the role of new media in obtaining information among students of the second year of grammar schools and non-grammar school types of secondary schools. The aim of the thesis is to find out what news consumption looks like among secondary school students, whether they get information only through new media, or if some of them turn to traditional media as well. The theoretical part of the thesis describes what new media look like today, or whether they can be an easier means of spreading disinformation. Part of the work is devoted to how different authors view media literacy. The topic of the theoretical part is also the news consumption of young people - what means media literacy, whether young people are able to distinguish between information and disinformation, and that problematic media use can, in the worst case, end up in cyberbullying. The analytical section is devoted to a questionnaire survey, which was carried out among students of the second year of secondary schools in seven regions. 314 students in the respective regional towns participated in the research. The graphically processed results are verbally described and explained in the thesis. In the annex of the diploma...
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Subjective evaluation of cooperation between members of the Police of the Czech Republic and social services
LACIKA, Pavel
The cooperation between the Police of the Czech Republic and social services is a very important activity from the point of view of psychosocial impacts on clients and also for the protection of clients´ health and life. The aim of the thesis is to examine the mutual cooperation between the Police of the Czech Republic and the social services. Another focus of the work is to find out how the cooperation is with social services perceived by the members of the Police of the Czech Republic and whether the shares of cooperation with individual social services are distributed evenly. The thesis also deals with finding out whether the evaluation of the cooperation with the social services is related to the age of members of the Police of the Czech Republic and their service classification. Quantitative research strategies as well as a questioning method and a self-questionnaire technique are used to achieve the goal; the questionnaire uses closed questions with the possibility of choosing specific items in the answers and semi-closed questions, which, in addition, allow supplementing the offered answer variants. In total 314 respondents were asked, of which 105 females, 208 males and 1 respondent indicated a different type of gender identity. Because the questionnaire was intended for the police officers within the South Bohemian Region, I have decided to choose a questionnaire survey in electronic form. Bar graphs with absolute and relative frequencies were created for all questionnaire questions. The following statistical methods were used for statistical inference: confidence interval for relative frequency calculated using the Clopper-Pearson method, independence test based on Spearman's correlation coefficient, Kruskal-Wallis test, Cochran's Q test and McNemar's test. Calculations were performed using the TIBCO STATISTICA program, the significance level was 5%. In the discussion, the research results are summarized and compared with the literature that deals with the cooperation between the police forces and social services. In the conclusion of the thesis there is stated what is the possible contribution of this diploma thesis, including a possible solution, for example in the form of improving cooperation between the Police of the Czech Republic and social services.
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