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Modeling and fault detection of electric power system
Kluz, Jan ; Huzlík, Rostislav (referee) ; Vlach, Radek (advisor)
Thesis focuses on the topic of fault detection of power systems. First part presents a comprehensive review of area of reactive, preventive and predictive maintenace of power systems based on physical or AI–driven models. Important part is design and subsequent assembly of an experimental testing device. This device incorporates four faults: heightened contact resistance, low contact area, parallel load imbalance and sparking. Device contains precise current and linear Hall sensors. The device has successfully been assembled and tested with positive results. A lumped parameter thermal networks has been created on this experimental device and results were verified with measured data. Thesis also contains statistical analysis of voltage and current signals, that were captured during spark discharges with 10 – 90 voltage supply.
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Pathological gambling and his choose aspect
ŽAHOURKOVÁ, Barbora
Gambling is a type of compulsive behavior that we may encounter on a daily basis. It is essentially a pathological disorder that may affect the whole society as any one of us could become a victim. It is important to deal with this addiction on several fronts, be it on the level of preventive measures and related information campaigns, or within the framework of medical interventions and healing programs for addicts who wish to recover. Undoubtedly, our main attention should be turned toward the youngest generation. We must also devote more attention to the dangers and risks involved. This behavior negatively impacts family life, job and/or school-performance and, last but not least, the health of the persons involved. In the first part of this thesis, the relevant terminology will be defined. In principle, my work deals with both causes of this pathological behavior and the after-effects. In another section of this thesis, I will deal with the groups of population most at risk. Finally, I will outline existing preventive measures and their division into different types, as well as their description according to specific approaches and levels. In general terms, the goal of this Bachelor thesis is to define and describe the basic concepts and map out the information available on this kind of addiction. Further, it is my aim to assess how it has developed over time, and what the current situation is. In this framework, I have also devoted space to the analysis of consequences of gambling, attempts to draw in the whole society into this process and improve communication channels and, last but not least, the preventive measures in place. In the practical part, I have used the methods of quantitative research. My research tool was an anonymous questionnaire comprising ten questions. The results of my research are presented in graphs which form an integral part of the practical section. On the basis of my research, I was able to confirm the hypotheses that I had identified as being concerned with this type of behavior. By analyzing the respondents' answers, I was able to obtain a better overview about the experiences and negative consequences involved, as well as about the preventive measures which could have a positive impact on the well-being of the families and children at risk.
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