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Extremely low cycle fatigue life of magnesium alloy
Novák, Marek ; Věchet, Stanislav (referee) ; Zapletal, Josef (advisor)
The goal of this bachelor´s thesis is to predict the fatigue life of magnesium alloy AZ61 in the very low cycle count range (less than 100), which also called extremely low fatigue (ELCF) range. Life prediction predicted by Manson-Coffin´s law is higher than the experimental values show. The main problem is that the slope of the real life curve in the ELCF range is different than the slope of the predicted one. A new regression function with additional material parameters has to be found to match the experimentally measured values. The thesis deals with the literature search of the ELCF range and models of fatigue life prediction in the said range. Furthermore, in the experimental part of the thesis, magnesium alloy AZ61 without any heat treatment has been measured for mechanical and fatigue properties. Also, the microstructure of the alloy was observed. Measured values of fatigue life in the ELCF and LCF range were fitted by a regression function proposed by L. Xue.
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Theory of maintenance and reliability
Novák, Marek ; Veselkov, Vladimir (referee) ; Hammer, Miloš (advisor)
The Bachelor thesis is focused on theory of maintenance and reliability. Question of maintenance and reliability is very important during service machine and it can be helpful to reduce operating costs. In the Bachelor thesis are describes basics terms asociated with the theory of maintenance and reliability. Also it provides information about gradual evolution of maintenance systems. In the last part is an examle of engeneering practice with summary and evaluation of an example.
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Control of sorting by programmable logic controller
Novák, Marek ; Němec, Zdeněk (referee) ; Marada, Tomáš (advisor)
My diploma thesis deals with the design and production of the first of the two parts of a device for classifying goods. This device needs two programmable logic controllers (hereafter PLCs), produced by Phoenix Contact, to complete these activities. These controllers are interconnected. One part of the solution, which is described in my thesis in detail, deals with the communication between these controllers, the design of optimalization of methods of classifying goods, which is important for the operation of the whole device and visualization realization. The PLCs are programmed in PC worx software and the visualisation has been made using the Visu+ programme produced by Phoenix Contact. The outcome of my thesis is a device, which, after setting up of the parameters, works independently and is completely controlled by a HDMI touch screen. This thesis has been supported by the Czech Ministry of Education in the frame of MSM 0021630529 Research Intention Inteligent Systems in Automation.
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Mobile Android sport application
Maloušek, Jan ; Novák, Marek (referee) ; Kadlec, Petr (advisor)
The aim of this thesis is to design a mobile application for Android OS, which will be used to organize joint sports activities. Theoretical part of this document describes the Android operating system itself, creation and basic components of application and Firebase database system. Practical part of this thesis deals with designing the application itself, including used solutions and algorithms. Main focus of the design part was on functionality and intuitiveness and also on the use of the best practice programming techniques.
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Green Desk for Permanent Establishment
Reiter, Michal ; Novák, Marek (referee) ; Dydowicz, Petr (advisor)
Diploma thesis deals with the analysis of the current state of corporate governance from the perspective of permanent establishments of the Department of Environmental Protection Skanska a.s. Using analytical methods to analyze and evaluate information systems and management system for monitoring the impact of a permanent establishment on the environment. The paper presents the pros and cons of the current system of accounting for environmental information. Further the proposal for a new website Green desk with basic information and automated features that help simplify and streamline the administration and management of ecology permanent establishments.
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Device for Honey Bee Activity Measurement
Fučík, Jan ; Šimíček, Tomáš (referee) ; Novák, Marek (advisor)
This thesis engages in characteristic honey bee's behaviour first. Subsequently it engages in project of device for honey bee activity measurement. It reasons about non-electric quantities which can honey bee's behaviour represent. Description of components which can be use for measure these quantities follows. Description is intent on possible accuracy and energy consumption of each component. Appropriate method is selected subsequnetly. In realitionship with method are selected sensors and projected controlling circuit. There is a summary of parameters of device in resume. There is also design of the parts which do not work as good as is ideal in resume.
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Noise meter and sound detector
Jedlička, Petr ; Novák, Marek (referee) ; Povalač, Aleš (advisor)
This work deals with design and construction of a noise meter, which measures sound pressure level. The device can be set either for weighting filter A or for weighting filter C considering the characteristics of human hearing, the device also allows two modes, fast and slow, depending on the rate of changes of sound pressure level. It tis possible to send measured data to a PC through a measuring application. The noise meter can be powered either by three AA batteries or by a PC through USB interface. The noise meter can be controlled by voice commands.
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Device for Honey Bee Activity Measurement
Fučík, Jan ; Šimíček, Tomáš (referee) ; Novák, Marek (advisor)
This thesis engages in characteristic honey bee's behaviour first. Subsequently it engages in project of device for honey bee activity measurement. It reasons about non-electric quantities which can honey bee's behaviour represent. Description of components which can be use for measure these quantities follows. Description is intent on possible accuracy and energy consumption of each component. Appropriate method is selected subsequnetly. In realitionship with method are selected sensors and projected controlling circuit. There is a summary of parameters of device in resume. There is also design of the parts which do not work as good as is ideal in resume.
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Glossators a Commentators in the Strahov Library
Novák, Marek ; Skřejpek, Michal (advisor) ; Salák, Pavel (referee) ; Falada, David (referee)
348 Glossators a Commentators in the Strahov Library Private law in the Czech Republic, but also in many countries of the world, has its origin in the law of ancient Rome, the development of which reached its peak in the form of a codification compiled at the initiative of Emperor Justinian I in the 6th century AD. However, modern civil codes do not draw their content, theoretically defined institutes, and systematics directly from the sources of Roman law, but from the results of their processing by medieval and early modern period jurists. This process is referred to as the reception of Roman law and, in addition to the discovery, or rather realization of importance, of Justinian codification, it involved its detailed study, the search for a system in the insufficiently organized compilation of the statements of classical Roman lawyers, the abstraction of theoretical concepts from casuistic norms and the transfer of ancient norms to the contemporary world. This thesis focuses on the first two stages of the process of reception of Roman law, which are referred to as schools of glossators and commentators according to the typical ways of work of lawyers, and which extend from approximately the second half of the 11th century to the end of the 15th century. It searches manuscripts, incunabula, and printed...
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Teaching the subject Health and Safety Education since 1918 to the present.
Novák, Marek ; Blažková, Veronika (advisor) ; Kovaříková, Miroslava (referee)
TITLE Teaching the subject of health and safety education from 1918 to the present ABSTRACT Aims: The aim of this diploma thesis is to describe and compare the developmental tendency of teaching the subject of health and safety education in schools corresponding to the second stage of today's primary schools from 1918 to the present and to compare historical curricular documents with the current curricular document. The aim is to bring a comprehensive view of the issue of health and safety education in connection with the changes in our education over the last more than a hundred years. Methodology: A historical-comparative analysis based on a search of professional literature and an analysis of historical and currently valid curricular documents, textbooks and other sources were performed. Results: It was found that health and safety education occurs in curricula and textbooks to varying degrees in all research periods. It was also found out how and in what subjects it was taught in different political and time periods. The result was a comparison with previous and current curricular documents. Conclusion: It can be said that the teaching of health and safety education permeates the entire school system in the Czech lands in various intentions over the last hundred years. The thesis can be helpful for...
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