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Kinematics and elastokinematics of independent multi-link suspension of axle using flexible supporting elements
Vrána, Tomáš ; Kovanda, Jan (advisor) ; Ladislav, Ladislav (referee)
This thesis deals with elasto-kinematic properties of multi-link rear suspension
system, based on simulations. The creation of computational model and simulation of
elastokinematics are based on specialized modules of the HyperWorks software. The
thesis idea is to create new models and improve their properties.
The chapter introduction presents and discusses the current knowledge state in the
issue of elasto-kinematic characteristics of the vehicle suspension. Previously published
works are presented in this section. The following section defines basic terms, features
and design elements concerning the topic vehicle suspension and vehicle axle, which
can help readers to orientate in this field.
The first part of the thesis is focused on the collection of high-quality input data to
create the MBS computational model based on the real suspension components. The
determination of kinematic suspension points, experimental measurements of inertia
moments of supporting elements of the suspension and measurements of deformation
characteristics of rubber-metal bushings are presented in the thesis. There are also
measuring characteristics of force elements such as springs or shock absorbers. Then the
proposed method of measuring elasto-kinematic characteristics of the suspension using
testing machine for model validation is also introduced.
The second and main part is devoted to creating a new MBS simulation models of
multi-link rear suspension using HyperWorks system. The suspension model is
improved by successive steps, from kinematic model, through model with flexibility of
the bushings, to the complex model in which the flexible properties of all supporting
elements are reflected. The properties of the used models are described together with
arising calculation problems. The results discuss the impact of elements flexibility and
individual structural alternatives on elasto-kinematic characteristics of the suspension
system.
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Mathematical modelling in basin of Litavka in the framework integrated system water
Hejduk, Tomáš ; Pech, Pavel (advisor) ; Máca, Petr (referee)
These thesis brings new findings in flood issues, which importance has been sharply increasing in the light of last years experience. Hypotheses about the usefulness of hydrological measurements in the creation of computational geometry watercourses, as well as using the data from aerial laser scanning in the preparation of computer tracks water flows have been confirmed. Presented papers introduce the use of new technologies, knowledge and other results of applied research in the field of preparation of input data for hydrodynamic models, geographic information systems, personal identification and early warning and information sharing to support the elimination of consequences of natural disasters or traffic accidents. The above presented findings about the use of airborne laser scanning data and synthesis these data with hydrological measurements are of great importance for the improvement of flood prevention. Another practical use of these findings lies in urbanism planning and flood forecasts. The effort is to increase the security of citizens in the case of threats to their security through early warning - ie. Preventative protection by results of conducted research in the field of mathematical modelling rainfall-runoff and passage of flood flows in the river system providing new knowledge for the identification and registration of persons. During the research conducted, the attention was paid to define tools supporting integrated activities of the state security and rescue forces, including increased education and communication between state administration, local governments and the public. However the main goal of this work is to prevent the effects of natural and anthropogenic risks to human health and property of citizens. The attention is paid especially on the most common natural hazard represented by the floods.
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Marketing strategy of the business entity
Mayová, Martina ; Vokáčová, Lucie (advisor) ; Margarisová, Klára (referee)
The aim of this bachelor thesis is to define marketing strategy for selected business entities - PZP Heating Inc. and Servisbal Obaly Ltd. The first part of this thesis is devoted to a summary of teoretical knowledge concerning the essence of marketing, marketing process of STP, marketing mix 4P and strategic marketing management. In the second part sets out the current strategy of marketing management with a detailed analysis
of the marketing tools of both companies on the basis of information obtained
from their website, internal materials and consultations with the managers
of the companies. On the example of two different, competing companies
is a task highlight methods that have the highest benefit for the company.
Still,it is a totally different society with a different product and customer structure, certain principles work for both companies as well. Tools that is profitable for both companies, they can serve as an inspiration to others who do not know these methods or using
them are still hesitating. In chapter Results and discussion summarizes the most important findings about marketing management of both companies, is listed by the main character, and the most important findings for each marketing mix. Both companies agree
that, of all the tools for them is the most effective online marketing that despite
the relatively high costs, most companies brings new customers. Also, there are some recommendations for both companies, which would, if implemented, should
point to the still unused opportunities and bring them new customers.
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Modelling potential distribution of invasive plants Indigo bush (Amorpha fruticosa) and Goji berry (Lycium barbarum) in the Czech Republic
Müllerová, Soňa ; Moudrý, Vítězslav (advisor) ; Barták, Vojtěch (referee)
Biological invasions are currently considered to be one of the major threats to biodiversity. Invasive species are introduced species naturalized in regions outside their native range with both ecological and economic impact known from many regions all over the world. In the Czech Republic, vascular plants constitute a major group of invasive species. They are characterized by the ability to adapt, spread and occupy new sites. Early identification of potentially dangerous species constitute a possible way to prevent further spread. This bachelor thesis presents the use of species distribution modelling technique as a tool for assessing invasive potential and predicting species invasions. The aim was to create the model of invasive shrub species Indigo bush (Amorpha fruticosa) and Goji berry (Lycium barbarum) potential distribution in the Czech Republic and explore the significance of each predictor variable including variables derived from digital elevation model. Models were created in the resolution of 100 m using Maxent method based on presence-only data and ten predictor variables including three topographic variables: elevation, slope and aspect. The results show that the most significant variables for both species are elevation, land cover which is the most important one for Amorpha fruticosa, and temperature annual range. Slope variable is significant for Lycium barbarum. Aspect is not significant. In terms of AUC discrimination measure, high values were achived for both species. AUC value for Amorpha fruticosa is 0,961 and 0,906 for Lycium barbarum. However, the realism and quality of the model is significantly influenced by the stage of invasion and also by complexity and accuracy of input data.
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Heritability of various types of behaviour in birds
Janatová, Veronika ; Karlíková, Zuzana (advisor) ; Svobodová, Jana (referee)
The goal of this thesis is the summary of existing knowledge about heritability of various types of behaviour in birds. The aim is also to emphasize the ecological nature of this knowledge.
This thesis consists of three main parts. The first part is focused on general view about how people looked at animal bevaviour in the past and how they look at it now. Methods used for research of behavior and its heritability are described as well as basic behavioural traits, their general interconnections and inseparability in animals. The second part is aimed at specific behavioural traits in birds. The factors affecting bird behavior are also mentioned. In the third part, deep analyses of scientific studies considering particularly ethology and genetics are made.
The contribution of this thesis is to provide complete information about research of bird ethology, its heritability and conection with ecology. Perhaps, it could be inspiration for further research and raise new questions.
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Evaluating new aromatic hop genotypes
Henychová, Alena ; Pulkrábek, Josef (advisor) ; Jaroslav, Jaroslav (referee)
Hop growers request new cultivar should have qualitative parameters of Saaz semi-early red-bine hop with higher yield potential. Therefore currently, there are efforts to breed new aroma cultivars.
The aim of diploma thesis was to evaluate and choose new breeding aroma genotypes, which would show equal or better quality and quantity parameters than Saaz semi-early red-bine hop registered cultivar, based on production indicators, chemical and genetic analyses. Obtained data were evaluated by basic statistical characteristics, two-sided t-tests for independent selections and correlation analysis.
A yield is the most important quantitative parameter, which is mainly and significantly dependent on climatic conditions. All evaluated genotypes in diploma thesis have reached higher average yields than ŽPČ cultivar, except genotype 4799. Genotype 4801 reached the highest theoretical yield (2.2 tons of dry hops) in year 2014 and genotype 4975 (1.77 tons of dry hops) in year 2015 from achieved results.
A content of alpha bitter acids is the most important qualitative parameter. All aroma new breeding lines have shown parameters of fine aroma hops according to chemical analyses of hop resins. Aroma genotype 4975 showed the highest average contents of alpha and beta bitter acids, balanced ratio between alpha and beta bitter acids, the lowest contents of cohumulone and colupulone, and as well it kept a low or middle variability in all studied traits of chemical analyses of hop resins. A relative content of farnesene higher than 12% is a typical for aroma hop cultivars with ŽPČ cultivar origin. All evaluated genotypes achieved this criteria.
We evaluated the relationship to Saaz semi-early red-bine hop cultivar based on genetic analyses. Genotype 4799 has been genetically the closest to ŽPČ.
Brewed beers have been a same quality as beers from Saaz semi-early red-bine hop cultivar by sensory evaluation.
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Virtualization utilization for automatic infrastructure creation for web application testing
Nepejchalová, Radka ; Vasilenko, Alexandr (advisor) ; Rostislav , Rostislav (referee)
The main aim of this thesis is to approximate some of the currently used techniques and principles within software development. Nowadays, great emphasis is placed on efficiency and quality of teams. Adopting the principles of continuous integration brings multiple benefits, especially for complex projects where many developers work at parallel. There is a greater need to integrate increasing generated code and make sure that the newly formed unit keeps functional. One of the main principles of the continuous integration is regular testing possibly revealing the problems that might occur during production deployment. However, such testing can be very expensive and using virtualization can be the key to reduce these costs. Testing new versions of applications can be made very easily using virtualization. Part of the work is devoted to all these previously mentioned parts. The practical part is then devoted to demonstrate solutions of real problems.
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Investment in precious metals
Krišlo, Michal ; Drozen, František (advisor) ; Šípek, Ladislav (referee)
The aim of this thesis is to analyse the current situation on the precious metals market, above all of gold and silver, as metals with an interesting past and future. The result should be a current view of both markets and their unique differences. The first part is devoted to the characteristics of gold and silver, their utilisation and outlook of new applications as a consequence of developing industrial branches in the new millennium. The second part is a more detailed view of the market and an analysis of the aspect of supply and demand of both theese metals and differences that influence their price. The third part brings together the main factors shaping this market and introduces some indicators eligible to watch these markets. The conclusion presents an evaluation of the discussed conclusions in a broader perspective.
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New political parties in Slovakia after the parliamentary election in year 2010 and 2012
Ambrózyová, Miroslava ; Müller, Karel (advisor) ; Smetanková, Daša (referee)
The Slovak political party system was shaken by new political parties, that emerged just recently and strongly influenced the political scene. The aim of the paper was to find out, what was the key of success of the the new political parties, which made it to the parliament in the parliamentary elections in June 2010 and in march 2012. In order to reach this goal I research the circumstances which lead to the establishment of these parties, their election program, the governmental period, the campaign and the role of the party leader. The paper is divided into four chapters, out of which the chapter one is dedicated to the teoretical background and definitions, the second chapter is putting light on the Slovak party and election system, the chapter three and four are the analytical core of the paper, in which I analyze the the political parties SaS, Most-Híd and OĽaNO in the above mentioned areas. I conclude the analytical part by the anlysis of the election results do the Slovak parliament in year 2010 and the preliminary election in the year 2012.
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The Reconstruction of Zlín Chateau
Bujačková, Mariana ; Schnapková, Radka (referee) ; Vojtová, Lea (advisor) ; Kalousek, Lubor (advisor)
The base of Bachelor Thesis is the architectural study wich was done in summer semester of the third year of the bachelor´s studies. The topic of this study was rocontruction and new use of chateau in town of Zlín. Until recently, the build was just restaurant and Museum of Southeastern Moravia. Now the Zlín chateau offers new restaurant with own small kitchen, cafe, wine cellar, learning centre for people of all ages, offices for beginning and small businessman, there is also small library with playroom for children and especially gallery in attic space with observation towers. Reconstruction does not alter the historic character of the chateau, therefore I want to use here just mild colours and simple materials like glass, concrete, metal and wood. From the new constructions we have got here the most outstanding ones, like four corner observation towers, new elevator in concrete tube and glass roof above courtyard.
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