| |
|
Car cabin passive cooling system performance study
Viščor, Petr ; Hejčík, Jiří (referee) ; Fišer, Jan (advisor)
The work is focused on issue of passive cooling in a cabin of a car. The basic principles and mechanisms of heat transfer are described in the theoretical part and the quality of cabin environment in terms of thermal comfort and air quality is discussed as well. Next part of the work describing the principles of ventilation and air conditioning of cabins and possible methods of passive cooling are discussed. Passive cooling means decrease of temperature of cars interior, without need of energy supply from car battery, or fuel. The last part of the work includes numerical simulation of selected methods of passive cooling using the THESEUS-FE 3.0 software. Simulations were performed on model of Volkswagen Polo car and primarily were focused on testing of functionality of various methods of passive cooling.
|
|
The phenomenon of refugees in the Syrian civil war
Durdisová, Marcela ; Lisa, Aleš (advisor) ; Prorok, Vladimír (referee)
This thesis deals with the current issue of refugees on the background of the Syrian civil war and its consequences for stability in the region. With regard to the fact that the crisis in Syria is felt throughout the entire Middle East region, the aim of this work is to map the impact of the conflict on neighboring countries of Syria. Based on the hypothesis, the effects of civil war and refugee phenomenon destabilize the whole region; therefore, my research question concerns political and social implications of the Syrian crisis in Iraq, Jordan, Lebanon and Turkey. The work also reveals the vulnerability of these countries, which find themselves in a dangerous situation resulting from the Syrian events. In terms of methodology, this work uses a variety of methods. My research relies especially on the methods of research, description, comparison, analysis and synthesis, historical method and interview method as well. Based on these methods, I will answer the research question through a wide range of impacts, covering security, political, social, ethnic, and economic issues of the analyzed countries.
|
|
Assessment of aroma active compounds in chosen fruit types
Rodzíková, Martina ; Vespalcová, Milena (referee) ; Vítová, Eva (advisor)
This bachelor thesis deals with the assessment of aroma active compounds in less known berries, gooseberries. In the theoretical part the general characteristics, biological signs and properties of selected varieties, chemical composition and structure of the components, drug effects, the possibility of processing and use of gooseberries are mainly described. The main aim of this thesis was to determine aroma active substances in selected varieties of gooseberry fruits using SPME-GC method. Aroma active compounds were first extracted by solid-phase microextraction and then assessed by gas chromatography.
|
|
Řízení IS/ICT se zaměřením na sourcing služeb informačního systému
Šebesta, Michal ; Voříšek, Jiří (advisor) ; Havlíček, Zdeněk (referee) ; Příklenk, Oldřich (referee) ; Král, Jaroslav (referee)
Research on outsourcing has been around for several decades, while recent evolution in the information systems discipline towards ICT service commoditization significantly changes the context of decision-making. Services that are available on-demand via the Internet allow organizations implementing functions they demand in a fraction of time. This trend represents a chance for organizations seeking to use advanced ICT services without a need of major investments. Problem is the current lack of guidelines and tools for managing ICT services and their outsourcing. Given the trends on the ICT service market, it is expected that much of the IT management in the future will encompass the ICT services and utilize service-level structures. Methods currently available are either too broad or encompass only small part of the whole problem. Ad-hoc or unsound decisions in this area might cause major complications in terms of quality, usability, integration, and consequently influence total cost of organizational IT. Organizations need to either revise existing models or propose and implement completely new models to manage their IS/ICT. This thesis deals with the management of IS/ICT with focus on the ICT services outsourcing. It discusses available sourcing models in the literature and links them to the various interconnected areas. Based on these areas, it presents an integrated view on IT outsourcing strategies. Most importantly the thesis proposes an original concept for decision-making about outsourcing of ICT services named the SOURCER framework. This approach utilizes the presented outsourcing strategies, and introduces a complex methodology and decision-making criteria that will assist organizations with selection of ICT services in order to maintain and manage a most suitable ICT service portfolio. The decision-making is based on four essential viewpoints: function, costs, time, and quality. These viewpoints are discussed, individually analyzed, and serve as a basis for further research. The whole framework is developed and validated according to Design Science Research Methodology (DSRM). Individual components are evaluated using a survey among a group of selected IT managers. Proof of concept is then established by a case study on framework use in a real organization. This case study covers strategy specification, business--IT alignment, specifying service architecture and its interconnections, outsourcing, and management of the ICT service portfolio.
|
|
A Comparison of Bird Abundance in Differet Types of Rural Settlements along the Czech-Austrian Border
Machynková, Kateřina ; Zasadil, Petr (advisor) ; Kočicová, Pavlína (referee)
In the nesting season 2015, the differences between abundances of 11 selected synanthropic species were monitored in village housing development and agricultural buildings on both sides of Czech-Austrian border in the area of Třeboň and in the Gmünd district. There were 20 municipalities chosen for this research, from whom half were in the Czech Republic and the other half in Austria. Two squares 100 x 100 m were demarcated in each village, of which one was situated mostly in the residential and the other in the agricultural area. The monitored species were house sparrow, Eurasian tree sparrow, Eurasian collared dove, European greenfinch, European serin, black redstart, European goldfinch, common linnet, common starling, white wagtail and common chaffinch. Other factors, such as poultry breeding, coverage of greenery (of herb layer, bushes and trees), the proportion of old and new housing development, etc. were monitored as well.
The number of identified species in the square and also their total abundance were significantly higher in the Czech Republic. Regarding individual species, the most noticeable difference in abundance was observed with Eurasian tree sparrow (in the Czech Republic 151 individuals, in Austria 37 individuals), followed by house sparrow (in the Czech Republic 217 individuals, in Austria 123 individuals). Significant difference was also proved with Eurasian collared dove. The most numerous detected species were in general both kinds of sparrow. Furthermore, the abundance of detected species was compared also between residential building areas in the centre of a village and the agricultural buildings on its outskirts. Significant difference was observed only with house sparrow and Eurasian collared dove, both species preferred the centre of a village, on both sides of the border. For the house sparrow he was also a statistically significant difference in the density of development in the monitored squares on the numbers in the Czech Republic. In Austria, a significant difference in percentual representation of tree and shrub layer in the monitored squares on abundance.
|
|
Computer Technology as Means for Compensation of the Information Deficit of People with Visual Handicaps
PRÁZDNÝ, Pavel
This thesis engages in computer and communication technologies as means for compensation of the information deficit of people with visual handicaps. There is an outline of the visual-handicap problems and its specification in the theoretical part. Then the historic context and development of approaches ideas in this field is sketched. Reader is also acquainted with the compass of visual handicaps and with the specification of inborn and obtained visual handicaps. This part is concluded by clarifying of the visual-handicap compensatory mechanisms.Next there is characterized and determined the complex rehabilitation of people with visual handicaps and more detailed attention is paid to the social and working rehabilitation. The following part of this thesis tries to introduce the field of computer and information technologies in context with the problems of the visual-handicaps. Text acquaints with the historic development in this sphere, with the problems of compensatory tools and integration computer technology into tyflotechnology. More detailed is decribed an area of the electronic compensatory tools on the basis of PC - first of all digital and camera magnifying glasses, the digital readable equipment with the vocal and touch outlet and Braille,s peripheries. Not even omitted the legislation of this problems. Author acquaints readers with the specification of internet use by the visual-handicaps and with the digital library services.This part is concluded by a topic of the navigation GPS and mobile phones use. The practical part presents the organized pieces of information that in concrete terms substantiate the theoretical part. There is a complete guide of the firms distributing the above mentioned compensatory tools and summaries of the electronic compensatory tools on the basis of PC in the practical part. Reader also can find summaries of the special hardware and software components in the tables
|
|
The Typology of Decoration in the Books of Hoursfrom late Middle-Ages (Book of Hours from the National Museum in Prague, XVI.G.77)
Horáková, Dominika ; Kubík, Viktor (advisor) ; Royt, Jan (referee)
v angličtině/ English Summary The Typology of the Decoration of Books of Hours in the late Middle Ages (The Book of Hours from the Library of the National Museum in Prague, XVI G 77) The aim of the study is a basic introduction to typology problems in books of hours in the late Middle Ages; the text discusses liturgical, cultural-historical contexts, iconographical and typological variations in the decoration of books of hours. Chapter 4.2. is focused on one concrete example - the Book of hours from the Library of the National Museum in Prague (XVI G 77). This manuscript is very different when compared with examples from preceding chapter 4.1. This piece of common production is much more simple - not only in terms of textual variety, but also in terms of decoration (it lacks both a compact iconographical cycle and iconographical inovations or particularities). Therefore I try to create some extended descriptions of the decoration of the Book of hours from the Library of the National Museum in Prague, and also to develop my own hypothesis about the date and location of the origin of this manuscript. My hypothesis is based on the polemic with the three existing allusions about this manuscript and also on the proper iconographical and stylistic analysis itself. Finally, I propose that the full-page...
|
|
Awareness of women about nutrition problems such as breast cancer prevention
STAŇKOVÁ, Denisa
This thesis focuses on the awareness of women of the nutrition issue as the prevention of breast cancer. The aim of this thesis is to find out whether the women have enough information about nutrition and life style as the prevention of breast carcinoma, where they look for information, if they are interested in this issue and whether they consume food that could work as the prevention. Another goal is to detect possible differences in the attitude to the prevention between women without the potential risk and women with the increased risk, i.e. women over 45. Research questions were determined as follows: "What is the knowledge of women about the issues of nutrition as the prevention of breast cancer?", "What is the proportion of the food that has preventive effect on the rise of breast carcinoma and, on the contrary, the food that supports the tumour growth in the eating habits of women?", "Where do women get information on this issue?", "What is the difference in awareness and consumption of food between women without the potential risk and women with the increased risk, i.e. over 45. The thesis is divided into two parts, a theoretical and a practical one. In the theoretical part I focus on the breast anatomy, basic information on breast cancer and risk factors that are divided into influenceble ones and non-influenceble ones. In the most extensive part of my thesis focuses on the influenceble factors, that is nutrition and life style. I focus especially on nutriments, food and other life style factors that are most connected with breast cancer and have antitumour effects or, conversely, support the tumour growth. The practical part was made by means of a questionnaire which I placed on the Internet and handed out in the waiting room at the general practitioner. The questionnaire was anonymous with 34 questions of a closed and semi-enclosed type. Questions concerned nutrition and life style in relation to the risk of breast cancer and were devised to answer previously defined research questions. The questionnaire survey took place in January and February 2013. I acquired 105 filled in questionnaires from which I randomly chose 86 to obtain two numerously equal groups of women without the potential risk and with the increased risk, i.e. over 45. The result of the research part is that women do not have much information on the life style in connection with the breast cancer. Some respondents, while selecting food with preventive effect, were only guessing and often also marked food which was not related to the breast carcinoma at all. About one third of the respondents even believe that nutrition and other factors are not related to this disease at all. One third of the respondents also stated that they had no interest in learning more information on this issue. Women that have some information usually get it from the magazines and from the Internet. In terms of eating habits, the food of most respondents does not reach the needed quantity to have preventive effects. On the other hand, the food and drinks that support tumour growth do not occur on the menu of the respondents very often. While comparing answers of the women younger 45 and the older group of respondents, it was found out that the younger respondents showed greater unawareness of this issue. No significant differences were recorded in other questions. The results of the survey are graphically processed and evaluated in the final part of this thesis. I suppose this thesis is the contribution to clarifying the current situation of this issue. I believe that the topic of my thesis is up-to-date and that I managed to summarize the most significant information regarding this topic and fulfil the aims I set down. I would be very glad if my work led to the contemplation of this issue and subsequently to a more extensive propagation of the breast cancer prevention.
|
|
The trans-fatty acids in subcutaneous fat and in fat content of breast milk as an indicator of their nutritional intake
Dlouhý, Pavel ; Anděl, Michal (advisor) ; Dostálová, Jana (referee) ; Hrubý, Stanislav (referee) ; Zadák, Zdeněk (referee)
Trans fatty acids (TFA) are unsaturated fatty acids, which have one or more double bonds in the trans configuration. Their main dietary sources are partially hardened fats and food products containing partially hardened fats (margarines, shortenings, bakery products, and fast foods). TFA are thought to increase the risk of coronary heart disease and type 2 diabetes. These fatty acids have adverse effects on blood lipid levels, increasing LDL-cholesterol while decreasing HDL-cholesterol. Consumption of TFA can also impair insulin sensitivity. High intake of TFA is associated with systemic inflammation, activation of immune functions and endothelial dysfunction. Hypotheses also exist that TFA may have adverse effect on the metabolism of essential fatty acids and foetus development. The concentration of TFAs in subcutaneous fat is a very good indicator of dietary exposure of TFA. This concentration reflects long-term dietary intake of these fatty acids. Levels of TFA in human milk are more variable; however, it is quite simple to obtain a sample of human milk. The purpose of our studies was to determine (a) content of TFA in subcutaneous fat samples from persons with coronary atherosclerosis and from persons with no sign of coronary dinase and (b) the content of TFA in early human milk of breast-feeding women...
|
guest ::
