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Application of Management Control System in a Business
Čapková, Simona ; Kopecký, Jakub (referee) ; Žižlavský, Ondřej (advisor)
The thesis focuses on the optimization of the costing system in the selected company, analyzes cost deviations and identifies the main causes of increased costs for key products from the first serial production. Based on the conducted analysis, the author creates a tailor-made cost tracking tool. Furthermore, the thesis offers recommendations for controlling improvements that make the management of variances more effective and improve the financial performance of the company.
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Preparation of the population for the self-protection and mutual assistance during the occurrance of extraordinery event
KOPECKÝ, Jakub
The aim of this thesis is to describe the present preparedness of general population for extraordinary events and in relation to the results of my research to propose recommendations for improvement of this said preparedness. This thesis is drafted as both theoretical and practical. The theoretical part deals with the current state of preparedness of general population for extraordinary events, including its legal definition, its understanding by general public and the description of some specific uncommon events. The practical part then focuses on my own quantitative research, the goal of which is to find out the actual preparedness for extraordinary events of the general public inhabiting the South Bohemia and Pardubice Districts. The research sample consisted of 115 respondents from the South Bohemia region and 82 respondents from Pardubice region. Results of the research show that the readiness is on a low level with marginal part of the respondents. This thesis includes suggestions to be implemented into practice.
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Use of information technology in research-oriented teaching of probability and statistics
KOPECKÝ, Jiří
This dissertation focuses on the integration of random set simulations into the teaching of probability and statistics in high schools using an inquiry-based approach. The aim is to determine whether such integration can contribute to changing the perception of these subjects among high school students. The research question is: "How does the use of random set simulations in research-oriented teaching affect the perceptions and attitudes of grammar school students towards the subjects of probability and statistics?" The study involved an analysis of the responses of 52 respondents from the control and experimental groups who completed semantic differential questionnaires. The 110 t-tests conducted showed that there were statistically significant differences in the responses of the two groups in the perceptions within the semantic space of students for probability as faster and more varied and for statistics as more useful. In the didactic reconstruction of the content for the secondary level, learning objectives were set at three levels of sophistication. The results showed that more than half of the high school students were able to create simulations of random sets with clusters or regular sets and to detect and eliminate the most common errors. Research suggests that incorporating random set simulations into the classroom can be an effective tool for improving understanding and increasing interest in probability and statistics. Moreover, this method supports the development of digital competences and programming skills, which are increasingly important in today's educational environment. The work also shows that random set simulations can help high school students to better understand the basic concepts of statistics and probability, which is important in the context of their growing importance in the modern world.
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Diagnosis sliding contact using practical applications "Methods particulate"
Kopecký, Jiří ; Mach, Martin (referee) ; Veselka, František (advisor)
This thesis deals with the sliding contact of electrical machines and its diagnostic methods. Namely, the dust-particles method for assessing the length decrease of brushes is deeply described. Then, usage of the method in industry is described. The comparison of accuracy between manual version and new automated version of the method using computer analysis is presented. The final section is devoted to the practical verification of the new automated version which was developed especially for large machines. Measurements were performed on a small machine.
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Stochastic modeling of water consumption in the water supply network
Kopecký, Josef ; Tureček,, Jan (referee) ; Ručka, Jan (advisor)
This thesis deals with stochastic water demand modellling in the water supply network. In the opening section, a research is created, where two different approaches to stochastic modelling of water consumption are presented. The practical part describes the creation of a deterministic hydraulic model and its calibration. Generated stochastic water demand patterns with a small time step of 1 minute, are then inserted into this model. Each household is assigned with a unique water demand pattern. Then a hydraulic analysis was done. A comparison of deterministic and stochastic approaches is presented at the end of the thesis. The comparison shows, that small-time step modelling does not have a big impact on the pressure ratios in the water supply network, but has a huge impact on the maximum flows and speeds occurring in links of the hydraulic model.
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Control circuits of railway lift
Kopecký, Jan ; Lažek, Tomáš (referee) ; Huták, Petr (advisor)
This master thesis deals with the mechanical and electrical design of the drive of the inclined construction lift. Individual components are selected in the design. Furthermore, a theoretical research is carried out regarding wireless modules and logic controllers. The selection of sensors is made and the method of retrieving signals from sensors and converting them into iputs the control circuits is also outlined. A program is written in Arduino IDE that wirelessly controls the motion of a motor via variable frequency drive.
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Hydraulic analysis of the Velký Beranov water supply network
Kopecký, Josef ; Remeš,, Bronislav (referee) ; Ručka, Jan (advisor)
The thesis is focused on hydraulic analysis of water supply network of the Velký Beranov in Jihlava district. A detailed quasi-dynamic hydraulic model of the water supply network was created, and then subsequently calibrated and verified on the basis of measurement of hydraulic quantities on the water supply network. The least squares numerical method was used to calibrate the model. The simulation model illustrates behavior of the water supply network during the characteristic operating conditions of the water supply. The follow-up analyzes carried out assessment of the pressure ratios with respect to the existing and future development given by the zoning plan.
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Chassis of trailer bus
Kopecký, Josef ; Černý, Jan (referee) ; Píštěk, Václav (advisor)
My diploma thesis is about project trailer bus for transportation of persons. It´s for SOR Libchavy spol. s r.o. This project work deals with four-wheel trailer bus for person transportation with independent suspension of all wheels and air axle suspension. All of the wheels are operated in dependence on turning trailer drawbar. Both of the axles are taken from front axle of bus SOR BN 12.
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determination of kinetic parameter of reactions using DSC
Kopecký, Jan ; Kouřil, Miloslav (referee) ; Jan, Vít (advisor)
The master thesis deals with DSC measurments a calculation of kinetic parameters. In the theoretical part, iron alotropy is briefly described, followed by a description of the DSC analysis itself. The thesis also includes division and derivation of isoconversional methods for calculating the activation energy. In the experimental part, a series of measurments is perfomed on pure iron prepared by Cold Spray method. In the paper the influence of deformation on the Curie temperature of the magnetic transformation in -Fe and transformation > is investigated. The activation energy is calculated for transformation > for different degrees of deformation. The degree of deformation is monitored by channeling contrast.
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