National Repository of Grey Literature 523 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Embedded System for Water Level Monitoring
Hanák, Jiří ; Kašpárek, Tomáš (referee) ; Šimek, Václav (advisor)
This work is dealing with the design and implementation of an embedded water level monitoring system. The purpose of the system is to control the filling of a tank based on the water level. First of all, the attention is given to the survey of existing measurement techniques and selection of the appropriate sensing elements for a given scenario. In fact, the embedded system is using TFmini and JSN-SR04T-2.0 contactless sensors. The system is controlled by STM32F0 microcontroller from STMicroelectronics programmed in C using HAL abstraction layer. The measured results are sent via Wi-Fi SoC ESP8266EX to the Python server that is used for processing and demonstratiton purposes.
Assessing the Possibility of Setting up a Dam
Prokešová, Eva ; Hlavinková, Vítězslava (referee) ; Hrubanová, Michaela (advisor)
The aim of the thesis is to assess the possibility of establishing a water reservoir in s selected location witch regard to its possible water management activities including geological conditions. The thesis also defines basic terms related to water reservoir and their parts. This work was elaborated with the help of available literature and valid laws of the Czech Republic concerning the given issue. At the end of the work will be valued land meeting the conditions for the construction of a small water tank. The award will take place in two ways according to the decree and direct comparison.
Kinetics of electrophotocatalytic water disinfection
Štefancová, Eva ; Zita, Jiří (referee) ; Veselá, Mária (advisor)
In this work, electrophotocatalytic disinfection on selected microorganisms was verified. The electrophotocatalytic system allows the application of electrical bias to the photoanode coated with a titanium dioxide layer. The disinfecting effect was observed on E.coli and C.glabrata in aqueous solution. The effect of radiation intensity on electrophotocatalysis and selected optimal conditions for further experiments was observed in the E. coli organism. Photocatalytic disinfection was carried out under suitable conditions on C.glabrata yeast and the effect of sodium sulfate electrolyte on electrophotocatalytic disinfection was observed in this case.
Intercooler for the CDS SEMI-PRO combustion engine
Novozámský, Richard ; Bazala, Jiří (referee) ; Svída, David (advisor)
This diplom thesis describes design of new pressured air cooling system for trubocharged Diesel engine used in CDS Semi-Pro competitions. First part is focused on analysis external conditions influencing the desing. Second part pays attention to simulations of performance. Third part describes design of two systems and possible testitng method. In last part, the real parametrs are put into the computing model followed by verification of the results and evaulation of the designed systems.
Risks associated with diving and their prevention
The topic of this bachelor thesis is called: "Risks related to diving and their prevention." The theoretical part is mainly focused on health risks which arise during scuba diving and follow-up prevention of the health risks. Furthermore, the following topics are mentioned in the theoretical part: a history of diving, biophysical concepts, and necessary equipment. Because of this topic, it was important to include chapters about first aid, treatment and medical fitness for diving. A reduction of health risks was chosen as the main objective in the practical part. There were 5 research questions created. 1. What is the training of divers? 2. What is suitable equipment for diving? 3. What conditions are convenient for diving? 4. What is currently the prevention of health damage during diving? 5. How can we reduce the risk of health damage? The qualitative research measurements were used for the creation of the research part of this bachelor thesis. A semi-structured interview containing 15 questions was created to get the data. There were 15 divers chosen for the interviews, 5 professional divers and 5 hobby divers. According to the results, it was found that there is a fundamental difference in the knowledge of the divers about this topic. Very often the risks are caused by insufficient preparedness and knowledge of the diver, not handling of the panic and stress, and a wrong reaction. Disobeying of precautions and principles often contributes to that. The results of this bachelor thesis may be helpful in completing education and information of divers, but also medical staff.
Drinking regime of school age children
Nowadays the topic of drinking regime is much discussed. Drinking regimen should supplement the daily loss of fluid in the body, because the human body is 60 % of the water. Water is very important to our human body and has many functions, such as biochemical reactions, heat, nutrient and oxygen distribution. Three goals have been set for this work. The first goal of the work is to map the total amount of fluid received per day. The second goal is total sugar intake during the day and the last goal is to evaluate the most consumed beverages. The thesis is divided into two parts, theoretical and practical. The theoretical part remains the influence of fluids on the child's organism, the principles of drinking regime, dehydration and hyperhydration. The research was processed using a recording sheet that mapped fluid intake 24 hours a day. He also followed the most popular drinks (sweet drinks and mineral waters), types of fruit juices, types of tea and types of milk. Research suggests that one-third of them had the right fluid intake and low intake on the first day. The next day, two-thirds had the right income and one-third the low income. The third, fifth, sixth, seventh day had four-fifths of the correct income and one-fifth the low income. On the fourth day, one half had both the right and the low income. On the eighth day, two-thirds had the right income and one-half the low income. Popular sweet drinks included Coca-Cola, Fanta and the least popular Kofola, Sprite. Mineral water is Poděbradka Prolinie and Korunní is the least popular. The favorite tea was the fruit tea and at least rosehip tea. Most of them consumed whole milk and the least fat. Respondents recommended the recommended daily dose at 5 days, the other days were normal.
The influence of agricultural activities on the stream water quality in natural reservation
The aim of this thesis is to evaluate the impact of agricultural activity on hydrochemical parameters of surface waters in connection with the occurence of specially protected species within the surface waters of a monitored area. A model was chosen for the evaluation of the situation - Bedřichovský potok, which is located in Novohradské hory. The river consists of lower and upper sub-waters. Forest management is applied within upper sub-basin, while agricultural management on arable land, meadows and pastures is used in the lower sub-basin. The monitored parameters were indicators of eutrophication of surface waters: Nitrate nitrogen (N-NO3-), Phosphate phosphorus (P-PO43-), and conductivity of undissolved material (NL105). The results showed that the agriculture management (especially on arable land) burdens the soil with nutrients and consequently erosion enters the substances, bringing them to the surface and ground water as a result. There was an increase of substances in the water after rain.
The River. The Art Project for 1st grade of Elementary School. (theoretical - project thesis)
The presented theoretical and project diploma thesis was aimed at developing an art project "RIVER", during the Art Education lessons in the first level of elementary school. It is structured in two parts, a theoretical and practical one. The theoretical part defines the terms and processes available literature on the topic. The project part of the thesis consists of ten proposed art lessons and also deals with the documentation, implementation and reflection of the proposed methodological sheets. The diploma thesis is followed with pictorial annexes related to the theoretical part, photo documentation of lessons and proposed structured preparation.
"Water" - series of lessons in art education for middle childhood age.
Theoretical and project diploma thesis focuses on elaboration of the thematic art series named "Water" and its realization in art classes of middle aged children at the elementary school. The theoretical part brings the general insight into the problematics of water in art and project teaching. The project part follows and it is composed of seven proposed lectures of art lessons. The description of realizations and didactic analysis of the lectures are included in the project part as well. The diploma thesis is complemented with picture attachments, photo documentation of sectional lessons and proposed structured preparation of lessons.
Analysis of drinking mode of university students University of South Bohemia.
The theme of this graduation thesis is Analysis of drinking mode students of University of South Bohemia in České Budějovice. The theoretical part is focused on function of water in human body. Different sources of drinking water and statndarts for using are mentioned there. The next part deals with alcoholic and nonalcoholic beverages in drinking mode and their effect on human body. Drinking mode is described from the point of view by different groups. In the end of theoretical part age group of students who is the research focused on is presented in detail. The practical part was realized by quantitative form which was distribuated among students. The aim of this research was described drinking mode of students during the day. I focused on volume and timing of fluid intake. Additionaly, I found out which types of drinks are consumed among students and compared gender differences within the researched group.

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