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Steam generator
Krčálová, Petra ; Tomáš, Zdeněk (referee) ; Fiedler, Jan (advisor)
Master thesis on topic steam generator deal with about improving the efficiency due to the use of combined cycle while producing electrical energy. The first part includes the possibility of using combustion engines in the energy sector and describes their advantages and disadvantages in the production of electricity. Further described is the use of the concept of a combustion engine in a combined cycle, and improving the efficiency of electricity through the use of waste heat boilers and steam turbines. The second part is design of the steam generator, which is connected behind the chosen combustion engine with power exceeding 10 MW. Whether this concept is profitable and competitive is in mentioned in the last chapter dealing with the return entry investment. In this chapter is compared several variants use and a demonstration of the impact of fuel prices on the profitability of this concept.
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Artificial neural networks and their application in the assessment of insurance risks
Macek, Karel ; Jiroutek, Pavel (referee) ; Mrázová, Iveta (advisor)
The present work studies applicability of artificial neural networks in the assessment of insurance risk. Structure and function of multilayer perceptrons, Kohonen maps, Fuzzy ART networks, and Fuzzy ARTMAP networks are described. Concept of insurance risk is defined and the ratemaking by generalized linear models is introduced. Neural networks' methods for reduction of input space's dimension, knowledge extraction, and visualization are summed up. Data describing traffic accidents are acquainted and results achieved on them are presented. The work successfully demonstrates theoretically and experimentally that multilayer perceptrons approximate better than generalized linear models. Modification of multilayer perceptron estimated distribution function of total claim. Analysis performed by Kohonen map and by subsequent visualization detected two significant clusters. Analysis by Fuzzy ART network is presented as a part of new algorithm for reduction of input space's dimension. New algorithm inspired by Fuzzy ARTMAP network discovered a group of accidents where the claim is above average. This group is delimited by interpretable rules. Attached CD contains scripts for Matlab and MySQL that was used for mentioned analyses.
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Influence of family environment and its impact on the school success
Pilcová, Jitka ; Mašát, Vladimír (advisor) ; Dočkal, Jan (referee)
Tato bakalářská práce pojednává o významu rodinného prostředí na školní úspěšnost a vzdělání dětí. Toto téma jsem se snažila popsat tak, jak se může projevovat z pohledu klientů sociálně-právní ochrany dětí (dále OSPOD) Praha 20. Cílem mé bakalářské práce je zjistit souvislost rodinného prostředí se vzděláním dětí. Jak ovlivňuje nepodnětné rodinné prostředí poznávací schopnost dětí. V případě, kdy dítě vyrůstá v nepodnětném prostředí, kde vzdělání není vysokou hodnotou, může být úspěšné ve studiu a dosáhnout vyššího vzdělání než jeho rodiče? Prvním podnětem pro mou bakalářskou práci byla kniha T. Katrňáka - Odsouzeni k manuální práci, kde autor předkládá názor, že předávání kulturního kapitálu svým dětem vždy záleží na systematické práci rodičů, na tom, jak se staví ke škole a vzdělávání a toto vše se pak snaží dětem předávat. Typickým přístupem k výchově v rodinách s nízkým vzděláním jsou děti jako "plovoucí zátky" bez vedení a opory. "Budu dělník jako táta, tak k čemu je mi učení? " S autorem naprosto souhlasím. I přes to, že je velká pravděpodobnost, že děti rodičů s nízkým vzděláním budou opět nevzdělané, je také však v nejednom případě možné, že jejich děti dosáhnou vysokoškolského vzdělání. Je důležité, jaký přístup ke vzdělání mají jejich rodiče. Aby rodiče mohli rozvíjet lidský kapitál...
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Production and fertility of dams for multiple milking
TRCH, Jan
The aim of this thesis was to evaluated fertility and milk performance due to multiple milking technology which was used. The monitoring was carried in 2011 in farms Agrospol, Malý Bor a.s. and the farm Dub. System evaluation of fertility and milk performance of dairy cows at multiple milking were evaluated in 186 lactations of Czech pied cattle breeding. The average number of milking in the parlour was 2.96x/day and robot 2.36x/day. 107 lactations were obtained during milking in the milking parlour and 79 of lactation during milking by robots. In this thesis were measured indicators of fertility (insemination interval, service period, the mean time and age at first calving) and indicators of milk production (lactation length, the amount of milk fat, protein and lactose content). In the reproductive indicators were taken statistically highly difference in age at first calving, where the average difference was 195 days. For other indicators of fertility were all statistically significant results in favor of milking in the milking parlour (2.96x/day). Czech pied cattle milked in the milking parlour per normative lactation average amount of milk produced 8 599.8 kg, cows milked by robot 7 272.5 kg. Among these values was statistically highly significant difference. The best results in the production of milk per normative lactation were gained by milked cows in the milking parlour (9 284.4 kg) and the second lactation cows milked in the milking parlour (9 033.0 kg) on the third and more lactation. The lowest milk production in normative lactation gained dairy cows milked by robot at first lactation (6 874.7 kg). The higher average fat content had dairy cows milked in the milking parlour with a value of 4.47 %, dairy cows milked by robot had fat content of 4.15 %. Between these values was statically highly significant difference. In the average protein content in dairy cows has been demonstrated statistically significant difference. Dairy cows milked in the milking parlour reached the value 3.41 % compared to cows milked by a robot, where the average value of protein was 3.47 %. The difference in lactose content between groups was not statistically significant.
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Fattening of heifers in Sumava mountains
VALTER, Jiří
The main goal of this master?s thesis is to assess heifer fattening conducted in two grazing cycles in the mountain region of Southern Bohemia. The observation was carried out in two cycles in the years 2008/2009 and 2010/2011. A total of 99 heifers was observed, all of them crossbreeds of Aberdeen Angus or Simmental cattle. In the first grazing cycle, the heifers were raised on pasture together with the mothers and stabled for the winter season. The heifers were slaughtered after the end of the second grazing cycle in the next year. Live weight of the heifers was recorded at the end of the first grazing cycle, at the end of the winter season and again at the end of the second grazing cycle. The weight of the dressed carcass and results of the SEUROP carcass classification were further recorded. The average daily gain was calculated for each period from the live weight. The data set was sorted by the month of birth and by the SEUROP class score. Data analysis was conducted using Microsoft Excel. In order to evaluate the results, basic statistical parameters were calculated for each of the selected variables and the cogency of the differences between the groups was tested with the two-tailed t-test at the corresponding level of significance. The average weight of the heifers at the end of the first grazing cycle was 281,2 kg, average weight at the end of the winter season was 366,1 kg and the average weight at the end of the second grazing cycle was 511,6. The average age of the heifers at the end of the first grazing cycle was 221,5 days and they were slaughtered at the average age of 568,9 days. The average daily gain was 1,16 kg during the first grazing cycle, 0,53 kg during the winter season and 0,81 kg during the second grazing cycle. The lifetime average daily gain was 0.85 kg. Net gain averaged 0,45 kg per heifer. The average weight of the dressed carcass was 253,8 kg. 2,1 % of the heifers gained SEUROP class ?U?; 54,5 % class ?R? and 43,4 % class ?O?. The heifers showed considerable variability, especially in the weight at the end of the second grazing cycle (sx = 42,4 kg). Data analysis revealed correlations of r2=0,62 between weaning weight and slaughter weight and r2=0,69 between weaning weight and JUT weight.
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Management of Talent Development
Jindřich, Tomáš ; Němec, Otakar (advisor) ; Dědina, Jiří (referee) ; Černoch, Felix (referee)
The subject of this text is the management of talent development. The aim of a dissertation was to identify what skills abilities are supposed from Talents in organizations what is suitable to develop in trainings by talents what method of development is most effective for talents and what we should consider hen we set up talent management in organization. The history of talent management manners and current interpretation of keywords are analysed in theoretical part. The hypotheses were set up to current problems and were verified by standard manners in organizations and at the university. The hypotheses have passed successful only for typical circumstances where the talents usually are. The most important knowledge are two new trends in talent management. The first is business coaching like combined method of development for talents is most effective manner of talent development. The second knowledge says that talent management set up of talent management depends on level of systematic work in organization.
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Transformation of a Processor Description in CodAL to SystemC Structures
Ondruš, Tomáš ; Hynek, Jiří (referee) ; Přikryl, Zdeněk (advisor)
The goal of this thesis is to create a generator of simulators and hardware representation of application specific processors in a SystemC language. An aim of the first part is to create a wrapper layer compatible with SystemC TLM 2.0 that wraps an existing simulator to avail modeling of transaction oriented systems. The second part is a generator of a hardware representation for the processor that is suitable not only for logical synthesis, but also for the simulation on a cycle accurate level. A final result is a state of the art solution comparable to existing generators.
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Project management in competence centre SQA
Hendrich, Michal ; Buchalcevová, Alena (advisor) ; Chocholatý, Drahomír (referee)
This thesis deals with project management competence center in Software Quality Assurance, which operates the University of Economics in Prague. The first part of this thesis is focused on basic terminology management projects and projects aimed at testing. The second part focuses on project management competence center in Software Quality Assurance, which describes a modified project life cycle according to the PMBOK and project life cycle testing. All phases of the lifecycle contain sub-activities and the person responsible for the activity. The last part of this thesis is focused on management competency center Software Quality Assurance tool available for cooperation IBM Connections, which is available for students and staff of the University of Economics in Prague. The thesis is a complex material intended primarily for manager competency center, its teams and includes guides on how to manage the very center and its projects.
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3D Visualization of Products in Industry
Janďourek, Miroslav ; Šedivá, Zuzana (advisor) ; Bruckner, Tomáš (referee)
The theme of this bachelor's thesis is to analyze the use of three-dimensional visualization of products in industry and other branches using the computing technology. The theoretical part introduces the possibilities of using 3D computer graphics, basis concepts and principles that are associated with the creation and use of three-dimensional visualization. The following part is describing the life cycle of the modeled object from its preparation to creation of a comprehensive 3D object. Furthermore there are closely specified the recent trends in this area. In the practical part there is a practical illustration which is based on a real photograph of an empty room. By the use of three-dimensional visualization is demonstrated creation of a fully equipped room for this particular property. Another goal is to verify the hypothesis that the 3D visualization has a positive impact on the marketability of the property.
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