National Repository of Grey Literature 54 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Analysis of Football Club and Optimalization of its Management
Maťašovský, Martin ; MBA, Jiří Kotrba, (referee) ; Hanušová, Helena (advisor)
Bachelor’s thesis is based on analysis of the football club FC ZBROJOVKA BRNO, and the further optimalization of its management. The thesis can be divided into several parts. The first part is devoted to the theoretical background of this work, in following parts the club is analysed via SLEPT and SWOT analysis, analysis of its budget and analysis of the organization structure. Thanks to all acquired data I introduce several proposals of solutions with their impacts as they were shown in analysis.
Industry 4.0 and Industrial Robots in Machinary
Kotrba, Martin ; Vetiška, Jan (referee) ; Knoflíček, Radek (advisor)
The aim of this work is to describe the principles of the Industry 4.0 initiative defaced by the Ministry of Industry and Trade. Creating a search of the current state of industrial robots and manipulators according to their design and application. Design an ideological robotic workplace at BUT premises in kontext with Industry 4.0
Thermal Calculation of Rotational Electrical Machines Using Thermal Network
Špérová, Alice ; Dědková, Jarmila (referee) ; Kremser, Andreas (referee) ; Kotrba,, Vít (referee) ; Ondrůšek, Čestmír (advisor)
Práce se zabývá konstrukcí a využitím tepelných sítí k simulaci oteplení elektrických motorů velkých výkonú. Po úvodu do termiky a teorie proudění je popsána konstrukce tří různých typů sítí pro odlišné ventilační schémata motoru. Dále jsou popsány optimalizační metody a jejich možnosti k tepelné optimalizaci motorů. Je vybrána a vysvělena Marquard-Levenbergova metoda a na konkrétním případě je vysvětleno její použití a výhody pro optimalizaci chlazení elektrického motoru. V závěru se práce zabývá také citlivostí teplotních sití na jednotlivé vstupní parametry, porovnáním simulací s měřenými výsledky a také vlivem teplotních závislosti jenotlivých prvků sítě.
Emissivity and Result of Non-Contacting Temperature Measurement
Kotrba, Martin ; Zuth, Daniel (referee) ; Vdoleček, František (advisor)
Detailed introducition of non-contact temperature measurement and correct settings of the measurement device, which has great influence on correct temperature determination, is the aim of this diploma thesis. The experimental laboratory was established to verify dependencies by Compaq CM non-contact thermometer. Conclusions and recomendations are deduced from the measurement results and their analysis.
Innovation of the Cooling System of Rotating Electrical Machines using CFD Methods
Sikora, Michal ; Ondrůšek, Čestmír (referee) ; Kotrba,, Vít (referee) ; Sháněl, Martin (referee) ; Kratochvíl, Ctirad (advisor)
This thesis deal with design and implementation of innovative cooling method, intended primarily for medium-power synchronous generators. The main objective of this proposal is to remove the large heat exchanger connected to generator. This heat exchanger unduly increases the space requirements for the machine location. The proposed solution is to use a direct water-cooled stator. It is assumed that the rotor winding will be still cooled by air. Unlike current cooling system, the hot air from the rotor can be cooled in smaller cooler inside the generator. In this work are described methods which can be used for design of water cooling basic parameters, taking required temperatures into account. A small induction motor was selected for practical verification of the proposed cooling concept. This motor was modified into two variants - related to the old cooling of synchronous generators and related to the proposed solution. Both of these variants were measured and compared with each other. Subsequently, CFD models of these two variants were set up. Measured temperatures were used for debugging of models and identification of material properties of components of these machines. The final model of water-cooled variant also makes it possible to simulate the work of motor for higher performance and to determine the overload compared with the old cooling variant. Some knowledge and experience obtained from the small water-cooled induction machine were used in the design of water-cooling for large synchronous generator. In a similar way, CFD models of the old variant of cooling and proposed variant of water- cooling were created. Although these models were not verified by actual measurements on the generators, the results indicated that the application of water-cooling in this type of machine is appropriate and provides many benefits.
Virtual twin and predictive maintenance
Kotrba, Martin ; Holub, Michal (referee) ; Tůma, Jiří (advisor)
This diploma thesis deals with the design of a virtual twin of cross table MCV 754 QUICK from the Czech manufacturer Kovosvit MAS. The research part describes the basic principles of predictive maintenance methodology and virtual twin technology. The practical part includes a simplification of the initial cross table model. This model was then transferred to the simulation software MSC Adams, where it was optimized so that its behavior corresponds as closely as possible to the physical device. Several simulations were subsequently performed on the model. Then a concept for a predictive method for calculating the remaining service life of individual sections of the ball screw was presented. Simulations performed on a virtual twin served as a source of data to test the proposed method.
Design of temperature control of power electronic element of device for radio transmission
Laga, Ondřej ; Kotrba, Vít (referee) ; Vlach, Radek (advisor)
This work deals with the problem of overheating power devices for radio transmission, namely transmitting vacuum tubes, which often reach a high temperature by the maximum operating of this. This is the design of temperature control for this device.
Coping flexibility in persons with schizophrenia
Kotrba, Matěj ; Nikolai, Tomáš (advisor) ; Urbanová, Kateřina (referee)
The topic of this bachelor thesis concerns coping flexibility in persons with schizophrenia. The goal of this work is to present a summary of the current findings and to allow for better orientation in the topic. Our topic has not been extensively covered in Czech academic literature. The literature review section concerns the theoretical background of the terms coping and coping flexibility, as well as the mechanism of choosing a coping strategy. Furthermore we, in general terms, introduce our readers to schizophrenia. Furthermore, we discuss coping flexibility in persons with schizophrenia. In the empirical part of this thesis, we introduce a research proposal, which would allow us to test coping flexibility in persons with schizophrenia and asses the preferences in coping among this clinical population. We propose the use of several questionnaire methods for coping flexibility assessment, namely the Strategies of coping with stress, or Stressverarbeitungsfragebogens (SVF - 78), Ways of Coping Checklist/ Ways of Coping Questionnaire (WCC/WCQ) and the Coping Flexibility Scale - Revised (CSF-R). Our expectation is that persons with schizophrenia will exhibit worse coping flexibility and gravitate towards potentially maladaptive coping, as opposed to the control group collected from a neuro-typical...
Establishment of a Czech football academy in a developing country
Kotrba, Filip ; Kaprálková, Michaela (advisor) ; Šíma, Jan (referee)
Title: Establishing a Czech club football academy in a developing country Objectives: The main objective is to identify the pitfalls, benefits and conditions of implementing a Czech club academy in a developing country through semi-structured interviews with stakeholders. In achieving the main objective, it is crucial to identify and understand various aspects related to the implementation of the academy- Methods: The qualitative method chosen was semi-structured interviews. The study population consisted of 5 respondents who have many years of experience not only in the Czech football environment, but also have various experiences with football and football academies in developing countries, specifically in Africa. Results: The results showed that the establishment of a football club academy in a developing country by a Czech professional football club is possible. Thanks to the very high quality Czech youth football academies, most professional football clubs have a solid foundation for establishing an African club academy. Yet the construction and operation is not suitable for a Czech football club for several reasons. Developing countries, in the case of this thesis African countries, are often different in environment, culture and legislation than the Czech Republic. Czech football clubs do...
The differences in the level and variability of impact factors between golfers of different performance
Kotrba, Milan ; Gryc, Tomáš (advisor) ; Carboch, Jan (referee)
Title: Differences in the level and variability of impact factors in golfers of different performance Aim: The aim of the diploma thesis is to clarify what are the differences in the level and variability of impact factors in golfers of different performance. Methods: The research group consisted of a total of 28 right-handed golfers divided into 3 performance categories. Professional players included all those with PRO status (Age = 28.5 ± 4.33 years, Height = 183.25 ± 4.76 cm, Weight = 85.46 ± 9.92 kg), Among Elite Amateur players with better hcp than 4.2 (Age = 22.67 ±1.63 years, Height = 186.33 ± 7.12 cm, Weight = 81.84 ± 10.04 kg, HCP = 0.47 ± 2.34) and among Amateur players all with hcp 4.3 or worse (Age = 35 ± 9.03 years, Height = 182.78 ± 6.58 cm, Weight = 84.11 ± 12.14 kg, HCP = 7.71 ± 2.57). Probands played a total of 20 strokes with 4 clubs (PW, 8 iron, 5 iron, Driver) after 5 strokes with a full swing to the finish line. In our test, the level and variability of impact parameters were evaluated. The difference between the performance groups was evaluated using the Kruskal-Wallis test at the level of statistical significance alpha <0.05 in the R v3.5.2 program (Vienna, Austria). Results: When evaluating differences between performance groups, we found significant differences in the level...

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