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Detection of Failures and cavities in structures using radar
Tkadleček, Petr ; Anton, Ondřej (referee) ; Cikrle, Petr (advisor)
The bachelor‘s thesis describes non-destructive testing and methods, which are used in civil engineering. It is focused on the detection of failures and cavities in concrete structures. In the first part the methods are described and compared. The second part describes experimental measurements on concrete structures, which contain failures. The results are described and interpreted. The used methods are compared. It was evaluated, which of these methods is suitable for the detection of failures and cavities in structures.
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Assessment of the technical condition of the sewer network in the village
Shamko, Viktoryia ; Úterský, Michal (referee) ; Hluštík, Petr (advisor)
The bachelor's thesis deals with the assessment of the construction and technical condition of the sewer network in a selected village. The research part is focused on maintenance, types and frequency of failures and inspection techniques to control the condition of the sewer network and propose reconstruction. The works include czech and foreign methodologies for evaluating the condition of the sewer network. In the practical part, a camera inspection of selected sections of the sewer network was performed, followed by a defect coding and evaluation according to two methodologies. Conforming to the assessment of the condition of individual sewer sections and manholes, rehabilitation was proposed.
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Characteristic Piston Ring Failures and Their Corrective Methods
Orság, Josef ; Knotek, Jiří (referee) ; Raffai, Peter (advisor)
This Bachelor's thesis concerns the most common failures of piston rings. The first part of this thesis focuses on the design of a piston ring and on the load affecting it. The second part describes various kinds of lubrication. This section also shows, which lubrication states occur during operation of internal combustion engines. And final part is devoted to the most common failures of the piston rings and how to prevent them.
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LED failures
Doležal, Petr ; Krbal, Michal (referee) ; Pavelka, Tomáš (advisor)
This bachelor thesis is dealing with description of the principle generation light in the LED light sources. In the text we can find principle function of LED, history, possibilities of brightness control, power supply and various types of structures. There are described photometric and electrical parameters. Other part of this thesis is the description of effects leading to failure and malfunction of LED light sources. The practical part of this thesis contains measuring on samples of power LED emitting white light and verification of operational effect leading to the failure of LED light sources.
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Impact of Faults and Errors in Context of Embedded Operating Systems
Doležel, Marek ; Pánek, Richard (referee) ; Strnadel, Josef (advisor)
Cílem práce je zhodnotit dopad injektovaných chyb a poruch na vestavěný operační systém a jeho aplikační vrstvu. Tento problém je vyřešen navrženým softwarem pro injektaci poruch a chyb. Tento software vkládá poruchy a chyby za běhu, tj. během provádění vestavěného systému. Injektace je spuštěna časem, jinými slovy, chyba je injektována po uplynutí časovače. Proti C/OS-II jádru spuštěnému pod NIOSII systémem byly provedeny dvě kampaně s injekcí chyb. Obě kampaně cílily na kód plánovače. Kód plánovače byl vylepšen mechanismem kontroly toku v případě druhé kampaně. Výsledky provedených injektačních kampaní ukázaly, že varianta s technikou CFCSS se ve srovnání s nezabezpečenou verzí chovala hůře.
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Software for evidention of error cases
Menšík, Tomáš ; Andrš, Ondřej (referee) ; Kovář, Jiří (advisor)
This thesis deals with the elaboration and registration of reporting failures on machinery equipment during performance of works operational maintenance support team. Software is tested in operation at Honeywell Brno. The aim of this thesis is to design software in Excel VBA development environment that can manage statistically and graphically present the results of usability machinery.
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Methodologies for evaluating the technical condition of sewer networks
Palkovská, Vendula ; Singrová, Veronika (referee) ; Hluštík, Petr (advisor)
The bachelor’s thesis deals with methodologies for evaluating the construction and technical condition of sewer networks. The work consists of two parts. The first theoretical part is focused on the description of basic concepts related to the sewer network, acquaintance with the issues of cleaning, research and faults of sewer networks and also contains methodologies for evaluating the technical condition of sewer networks used in our country and abroad. In the second practical part, based on a camera inspection of a selected section of the sewer network, the classification of faults and evaluation according to three methodologies and their subsequent comparison were performed.
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Methodologies for evaluating the technical condition of sewer networks
Palkovská, Vendula ; Singrová, Veronika (referee) ; Hluštík, Petr (advisor)
The bachelor’s thesis deals with methodologies for evaluating the construction and technical condition of sewer networks. The work consists of two parts. The first theoretical part is focused on the description of basic concepts related to the sewer network, acquaintance with the issues of cleaning, research and faults of sewer networks and also contains methodologies for evaluating the technical condition of sewer networks used in our country and abroad. In the second practical part, based on a camera inspection of a selected section of the sewer network, the classification of faults and evaluation according to three methodologies and their subsequent comparison were performed.
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Perception and coping with the specific learning disabilities impacts on everyday life of children with this diagnosis
Vilímová, Zuzana ; Kucharská, Anna (advisor) ; Špačková, Klára (referee)
TITLE: Perception and coping with the specific learning disabilities impacts on everyday life of children with this diagnosis. ABSTRACT This text is focused on recognition of impacts of the specific learning disabilities on everyday life as the children with this diagnosis themselves see it and the strategies used by these children in order to cope with these disabilities. The theoretical part summarizes the necessary knowledge of the early school age developmental stage, the interaction of a child with the family, and briefly the stress and the coping. The results of last year's mothers of specific learning disabilities diagnosed children research are also presented. The empirical part is based on semi-structured interviews with six children diagnosed with the specific learning disabilities attending fourth or fifth grade of primary school. Based on it's qualitative analysis, the thesis attempts to clarify how the specific learning disabilities diagnosed children perceive and experience the impacts of this disabilities on them and how do they cope with it. KEYWORDS specific learning disabilities (SLD), child, family, school, failures, coping strategy
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Wagner Group and Opportunism in Russian Foreign Policy: Case Studies of the Central African Republic (CAR), Libya, and Mozambique
Strong, Christopher ; Riegl, Martin (advisor) ; Doboš, Bohumil (referee)
CHARLES UNIVERSITY FACULTY OF SOCIAL SCIENCES Institute of Political Studies Department of Geopolitical Studies Master's Thesis Wagner Group and Opportunism in Russian Foreign Policy: Case Studies of the Central African Republic (CAR), Libya, and Mozambique Abstract This research paper concerns Russian foreign policy and the tools it uses to accomplish its objectives. More specifically, the research is focused on the secretive private military company (PMC) Wagner Group. Wagner Group has been deployed around the globe to further the interests of Russia and is a key tool in Russia's opportunistic foreign policy. This paper seeks to answer the research question: At what point does the risk for Russia become too high to maintain the deployment of Wagner Group in a foreign country? Answering this research question will help academics and policymakers further understand the use of Wagner Group by the Russian government. Wagner Group is meant to be low risk to Russia. Previous research is sparse and often covers many deployments of Wagner Group. In contrast, this paper focuses on three case studies that allow for a more in- depth approach - Wagner Group in the Central African Republic (CAR), Libya, and Mozambique. Using qualitative analysis this paper discerned that in its use of Wagner Group, Russia will...
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