National Repository of Grey Literature 34 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Usability of Post-quantum Cryptography in IoT
Kratochvíl, Jakub ; Perešíni, Martin (referee) ; Malinka, Kamil (advisor)
Cílem této práce je zjistit použitelnost postkvantových kryptografických algoritmů a jejich nároků na zdroje na zařízeních s omezeným výkonem. Pro vyhodnocení použitelnosti jednotlivých algoritmů jsou měřeny obecné parametry na zařízení ESP32 s čipem Xtensa LX6. Druhá část této práce se zaměřuje na velikost síťové komunikace protokolu TLS 1.3, který využívá postkvantové alternativy. Obě tyto části obsahují srovnání se současnými kryptografickými algoritmy. Výsledky v obou částech měření ukazují především zvýšení nároků na zdroje pro postkvantové algoritmy. Postkvantová kryptografie je v současné době použitelná na zařízeních podobných ESP32, ale na zařízeních s nižšími zdroji je problematická nebo dokonce nepoužitelná.
The attractiveness of individual athletic in primary schools
Kratochvíl, Jakub ; Kašpar, Ladislav (advisor) ; Teplý, Lukáš (referee)
The aim of this bachelor's thesis was to determine the level of attractiveness of athletic disciplines within physical education classes at primary schools and to identify factors that influence the attractiveness of these disciplines. The thesis is divided into theoretical and research sections. In the theoretical part, information is summarized regarding the significance of athletics in the curriculum of physical education at primary schools, including the history of athletics, motivation of students in physical activities, and general sports preferences. The research section focused on interpreting the results from a questionnaire survey completed by 256 respondents from selected primary schools in the Pelhřimov district, specifically ZŠ Humpolec, ZŠ Pacov, and ZŠ Pelhřimov. This part of the thesis places further emphasis on students' relationships with individual athletic disciplines and their impact on student performance, featuring a detailed analysis of the attractiveness of athletic disciplines, especially focusing on selected disciplines such as sprinting, ball throwing, and high jumping. The research was conducted across three schools in the Pelhřimov district. Additionally, the research explores the appeal of athletics and sports disciplines among primary school students, examining how their...
Time synchronisation of stm32 microcontrollers
Kratochvíl, Jakub ; Havránek, Zdeněk (referee) ; Kunz, Jan (advisor)
This master's thesis focuses on the implementation of methods for time synchronization of microcontrollers and their testing. The theoretical part introduces relative and absolute methods of time synchronization. Subsequently, the testing method for time synchronization is presented, using delay measurements and Allan deviation. In the thesis, a total of 4 methods of time synchronization are implemented: GPS, DCF77, RDS, and a method utilizing a superior system. Among these methods, synchronization from the superior system proved to be the most effective, achieving synchronization of the beginning of a second within tens of nanoseconds. The best wireless method has proven to be the GPS method, with its accuracy at the beginning of seconds being in the hundreds of nanoseconds.
Retirement home
Kratochvíl, Jakub ; Spáčilová, Jitka (referee) ; Spáčil, Miroslav (advisor)
The topic of this thesis is a project documentation of a Retirement home located in Prague in Novodvorská street. The building is designed as a stand-alone building with five floors of a rectangular ground plan with a receding fifth storey. The retirement home is divided into a public section - a pharmacy and a part for clients - accommodation, leisure time including facilities - a restaurant with a kitchen, a laundry room. The construction system is designed as a reinforced concrete monolitic skeleton with rectanguplar columns and the filling structures are made of ceramic blocks. The building is based on reinforced concrete footings. A waterproof concrete is proposed for the lift shaft, and the foundation sills are designed for the perimeter masonry. Roofing of the 4th and 5th floor is a warm flat roof. In the 4th floor roofing section, the roof is made as a concrete tiles paving. The main entrance to the building is from southwest and the access to the building is from the northwest side where there is a parking lot for employees and clients.
Family house
Kratochvíl, Jakub ; Uheríková, Eliška (referee) ; Brukner, Bohuslav (advisor)
This bachelor thesis presents a design of a a family house for family of four members. The house is located in a residential district of the city of Prague - Kunratice. The house is designed in one part with two floors with one floor partly below ground level. The other part is designed with one floor. The layout is divided into two sections. The single-storey part of the house is a daily residential area, on the first floor of the two storey part is night zone for rest. In a recessed floor are utility rooms, study room and gym. Entry to the house and entry to the garage are located on the 1st floor on the north side. The building will be based on the footings of plain concrete and a concrete slab. Basement walls are constructed of permanent formwork filled with concrete. 1st and 2nd floor are made from sand-lime blocks. Walls are insulated with ETICS. The ceilings are from cast-in-place reinforced concrete slabs. Roofing is designed as warm flat roof. Analysis of thermal and mechanical properties of the house and fire safety report are also parts of this bachelor thesis.
People movement analysis in area of interest
Kratochvíl, Jakub ; Bastl, Petr (referee) ; Valach, Soběslav (advisor)
This bachelor thesis deals with the possibilities of monitoring the movement of people in areas of interest. The theoretical part presents various options for motion detection in the stores, from the simplest PIR detectors to the use of thermal cameras or wireless Wi-Fi interfaces. The proposed solution then deals with the detection of the movement of people by using computer vision.
Directional antenna for 60 GHz frequency band
Kratochvíl, Jakub ; Pítra, Kamil (referee) ; Láčík, Jaroslav (advisor)
The aim of this diploma thesis is to study the possibilities and problems of low-profile antennas and subsequently to design a directional antenna with spherical reflector for millimeter wavelengths. The theoretical part deals with basic information about horn and reflector antennas, and about SIW technology. In addition, the thesis deals with the specific design and modeling of the antenna using CST Microwave Studio. The simulated design achieved a sufficient bandwidth to cover ISM (57 GHz to 64 GHz) with gain 13.6 dBi at 60 GHz frequency. On fabricated antenna, the antenna impedance ratios were worse and the target bandwidth was not reached. Antenna gain was 14.33 dBi at 60 GHz frequency.
The health aspects of the body image
KRATOCHVÍL, Jakub
Body image and health are two closely related concepts that affect the quality of our lives. The aim of this diploma thesis was to gather current knowledge about the interconnectedness of the above-mentioned concepts and to evaluate some risk areas of the promoted body image patterns in relation to the possibilities of damage or impairment of health. In the theoretical part of the work, a research was created, which was processed on the basis of Czech and foreign literature. At the same time, this section identified the health risks associated with the pursuit of the current, society-accepted bodily ideal. The empirical part of the work contains own research, the aim of which was to assess the level of subjectively perceived satisfaction with them in the adult population of men and women in relation to BMI categories. The research took place in April 2020 and involved a total of 80 adults, including 40 men and 40 women. The revised Life Satisfaction Questionnaire, specifically the Health area excluded from it, served as a tool for assessing satisfaction with the level of health. For the purpose of evaluating satisfaction with body image, an evaluation scale was used. The results of the research revealed that men evaluate their health and body image better than women, and that individuals with a BMI in normal show better results in both areas than individuals suffering from overweight or obesity. The diploma thesis can serve as a material to spread awareness about the risks of eating disorders.
People movement analysis in area of interest
Kratochvíl, Jakub ; Bastl, Petr (referee) ; Valach, Soběslav (advisor)
This bachelor thesis deals with the possibilities of monitoring the movement of people in areas of interest. The theoretical part presents various options for motion detection in the stores, from the simplest PIR detectors to the use of thermal cameras or wireless Wi-Fi interfaces. The proposed solution then deals with the detection of the movement of people by using computer vision.

National Repository of Grey Literature : 34 records found   1 - 10nextend  jump to record:
See also: similar author names
33 KRATOCHVÍL, Jakub
1 KRATOCHVÍL, Josef
28 Kratochvíl, Jan
5 Kratochvíl, Jaromír
12 Kratochvíl, Jaroslav
2 Kratochvíl, Jindřich
31 Kratochvíl, Jiří
2 Kratochvíl, Jiří Jaroslav
2 Kratochvíl, Jonáš
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