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Nuclear Fuel and its Behavior during Burn-up
Matocha, Vítězslav ; Foral, Štěpán (referee) ; Katovský, Karel (advisor)
The point of this bachelor’s thesis is to characterize different types of nuclear fuels and their behaviour during the process of burning-up. Futher, basic types of nuclear reactors are mentioned, as well as their history and different kinds of nuclear fuels used in these reactors. Then there are pieces of information about fuel cycles and fuel burning-up. Furthermore, the thesis concentrates on the changes, which happen in the nuclear fuel during the process of burning-up, such as swelling and cracking. In its other parts, this bachelor’s thesis deals with fission products, mainly gas fission products are mentioned here. At the end of this thesis, a simple model of nuclear fuel burning-up is created. This model follows concentration of izotopes of uranium and plutonium during fuel burning-up.
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Sensitivy analysis of the influence of manufacturing inaccuracies on the nuclear fuel reactivity
Sedlák, Martin ; Katovský, Karel (referee) ; Novotný, Filip (advisor)
This thesis deals with a sensitivity analysis of the influence of manufacturing inaccuracies on the reactivity of nuclear fuel. Sensitivity analysis has been done for fuel assembly TVSA-T, for nuclear reactors VVER-1000. Particularly, for fuel rod of type tvel - without burnable absorbers. Thirty three combinations of maximal and minimal of manufacturing parameters were simulated in SCALE environment. Changes of multiplication coefficient in dependence on burnup for 5 combinations have been also studied. It has been found that the most significant influence on the reactivity has the accuracy of enrichment and outer diameter of cladding. It has also been found that influence of manufacturing inaccuracies is not constant during burnup. The benefit of the thesis is determining the effects of individual inaccuracies on the reactivity and the fact that their influence is not constant during burnup.
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Untitled
Cáb, Martin ; Gravlejs, Ivars (referee) ; Sterec, Pavel (advisor)
The diploma thesis is based on the personal experience of burnout and stagnation in artistic practice. It is a personal reflection of boredom and work with unpredictability. Works in several layers with art theory, existential subtext and subliminal humor.
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The state-of-of-art of research and design of nuclear fuel
Bílý, Lukáš ; Mičian, Peter (referee) ; Katovský, Karel (advisor)
This bachelor’s thesis deals with advanced nuclear fuels resistant to accidents. It focuses primarily on fuel cladding innovation. The aim was to select several concepts and then test them using the UwB1 program. The UwB1 program shows us how the multiplication factor changes during the nuclear fuel combustion process in the reactor. Based on the results, one concept was then selected.
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Humor as a protective factor of the occupational stress of teachers
Vertelmanová, Hedvika ; Štětovská, Iva (advisor) ; Morávková Krejčová, Lenka (referee)
This bachelor's thesis offers a brief overview of theories and surveys made in the areas of occupational stress, defence mechanisms and humor. The author is trying to find and indicate the connections between these areas. This paper goes from the general issue of stress to the posibilities of defending against it. Furthermore, it focuses specifically on humor. It offers an overview of the general theories of humor, and it concentrates on the possible uses of humor as a way of dealing with mental overload. The goal of the practical part of this thesis is to examine the ways in which university teachers use humor. The purpose of this examination is to find ways for improving the mechanisms through which teachers deal with stress.
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Burnout syndrome in swimmers of age-group categories
Slámová, Jana ; Zenáhlík, Aleš (advisor) ; Hubená, Kristýna (referee)
Title: Burnout syndrome in swimmers of age-group categories Objectives: The aim of this work was to systematically map and analyze empirical knowledge about burnout syndrome in competitive swimmers under 18 years of age. Methods: This work was created in the form of a review study. Specifically, the purpose was to get as close as possible to the design of the scoping review. The search for relevant sources was carried out on the basis of predetermined criteria in the Scopus and Web of Science databases, and the Google Scholar search engine was also used as a complement. Results: There were found 7 relevant articles where 5 of them dealt with factors related to the development of burnout in young swimmers, one included a comparison of burnout scores between swimmers and volleyball players, and one article examined the psychometric properties of the Athlete Burnout Questionnaire adapted for children under 13 years of age. The results that stem from the analysis of these articles in most cases confirmed the hypotheses regarding the burnout syndrome in athletes, however, despite the assumption, a positive relationship between early specialization and the development of burnout was not proven. Keywords: syndrome, burnout, maladaptive, swimming, youth, dropout
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Burn-out of teacher's
Petříková, Olga ; Trpišovská, Dobromila (advisor) ; Michálková, Lucie (referee)
ABSTRAC The theme of this dissertation work is teachers' burnout syndrome. The theoretical part contains information from scientific literature concerning terms: burning out, exhaustion and stress, and shows their causes and symptoms. Teacher's personality is described from points of view of typology, professional demands, burnout syndrome and it is also explained how to prevent this syndrome. The empirical part of the work is represented by the research on various types of Prague schools. The standardized questionnaire Burnout Measure adopted from authors Ayal Pines and Elliot Aronson is used on that matter.
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Motivational and demotivational factors in the profession of a general nurse
Hanousková, Jindřiška ; Heczková, Jana (advisor) ; Di Cara, Veronika (referee)
This thesis discusses the motivational and demotivational factors that influence the work of nurses and their sense of satisfaction. The aim of the research is to map the motivational and demotivational factors that affect work performance of the Kolin Regional Hospital. The research's chose quantitative method was done by survey. The questionaire and it's contents were prepared by the author. The creation of the questionaire was based upon several similar surveys. Based on the author's research, it was found that interpersonal relationships among nurses were among the most powerful motivational factors; conversely, dysfunctional interpersonal relationships were the strongest motivational factors for changing employers. Another one of the strongest motivational factors was positive feedback from the patients. Since the research was quantitative in nature and covered the entire hospital, it is the author's opinion that the study should be repeated periodically and further focus on individual departments to better determine motivational and demotivational factors that affect work performance and overall job satisfaction. It is also suggested by the author that further research be conducted to compare outcomes of both employees and employers. keywords: nurse, research, motivation, demotivation,...
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The Risk of Burnout in Primary School Teachers
Hadravová, Jana ; Krčmářová, Tereza (advisor) ; Zemanová, Lenka (referee)
The Risk of Burnout in Primary School Teachers This diploma thesis deals with the risk of burnout syndrome in primary school teachers. The theoretical part of the diploma thesis provides an overview of the theoretical concept of burnout in teachers and the effects of burnout on their job performance and their personal life. The empirical part of the thesis introduces a qualitative research of the risk of burnout in primary school teachers who study the combined form of the 5- year Master's study programme at the Faculty of Education of Charles University, while working full-time. I interviewed several teachers who have been at the greatest risk of burnout, based on a questionnaire survey, about the factors that affect their mental health, about their perceived form of support and about their coping skills. Up to two-thirds of teachers experience exhaustion during their studies. Chronic stress, which is at the highest level during last years of the 5-year study programme, negatively affects their well-being, their family life and their physical and mental health. Key protective factors are problem-focused coping skills and work-life balance. The supportive attitude of the primary school management, as well as the attitude of the Faculty of Education towards studying teachers, can be also of...
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The state-of-of-art of research and design of nuclear fuel
Bílý, Lukáš ; Mičian, Peter (referee) ; Katovský, Karel (advisor)
This bachelor’s thesis deals with advanced nuclear fuels resistant to accidents. It focuses primarily on fuel cladding innovation. The aim was to select several concepts and then test them using the UwB1 program. The UwB1 program shows us how the multiplication factor changes during the nuclear fuel combustion process in the reactor. Based on the results, one concept was then selected.
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