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Evaluative Language in Electronic Product Reviews
Polášek, Radek ; Mihai, Hana (oponent) ; Reich, Pavel (vedoucí práce)
This thesis will focus on the evaluative language in mobile phones reviews. For this purpose, review of Apple iPhone 7 is going to be used. Apple company has wide portfolio of products, such as computers, TVs, tablets, watches or mp3 players. Phones are still one of the most popular products. For this reason, phone reviews are perfect source for this thesis. The main purpose is to analyse and demonstrate the means of advertising in the field of corporate discourse and unveil the strategies and tools to influence the reader, appealing on emotions, morals and aesthetic perception. I suspect that reviews are rather biased to due to the used form of language, which might contain personal opinions of the author or methods of manipulation with the reader. These methods may be deployed in the text stylisation, appealing on the reader´s emotions and social background or in the decision making about providing certain information. This thesis is going to verify whether this statement is true or false.
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Rovnice nelineární difuze
Polášek, Radek ; Hájek, Jiří (oponent) ; Franců, Jan (vedoucí práce)
Práce se věnuje různým typům difuzních rovnic. Difuzní rovnice jsou odvozeny pro různé předpoklady prostředí. Blíže je pak popsáno Barenblattovo řešení rovnice pomalé difuze, na kterém jsou demonstrovány jeho vlastnosti.
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Various approaches to visualization of 2D and 3D objects in computer graphics
Polášek, Radek ; Kotásek, Miroslav (oponent) ; Langerová, Petra (vedoucí práce)
This semestral thesis aims to broaden people’s knowledge of the visualization processes used in modern computer software to construct two and three-dimensional objects. We will go over some of the essential definitions and concepts of functions and their parameters which we will then utilize in following chapters of this thesis to further explain additional processes that allow these functions to be graphically represented in a system of coordinates. The last chapter is focused on direct examples from one specific computer software and what the user should pay attention to in order to graphically interpret functions in a correct manner.
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Design of a photovoltaic power system with battery storage for household purposes
Polášek, Radek ; Vanýsek, Petr (oponent) ; Vaněk, Jiří (vedoucí práce)
The aim of this thesis is to present the basics and functional principles of photovoltaics and photovoltaic systems, so that they can be later used design a photovoltaic energy system on a family house. The first part of this thesis deals with the theoretical introduction of photovoltaics and the individual components needed to design a photovoltaic system. The second part of the thesis then deals with the design and simulation of several variants of a system with different setups. The first type of analyzed and designed system is the off-grid system, whose primary objective in this design variant is to completely cover the consumption of the household. Although the total annual consumption of the selected household is not that high, achieving a complete self-sufficiency requires a very significant investment in system equipment., beyond the conventional design. The main cause of this are the problematic periods of low solar radiation through the year, especially during winter. As a result, the design of an off-grid system proves inadequate to the vision of the owners, even after the consideration of possible alternative versions of it. Alternative to an off-grid system is in our case a hybrid system which, unlike the first solution, also allows for connection to the grid to be supplemented by it during periods of low generation. After the introduction of hybrid system principles and analysis of possible financial subsidies, the individual hybrid system designs follow, each designed around a different focus point. The first simulated design is one aimed at as low initial investment as possible. This variant is also utilizing a virtual battery tariff, which allows, thanks to generated surplus energy, for to draw electricity from the grid at a reasonable discount. After the financial analysis, the system proves to be a relatively cheap variant, however, the potential investment return is not that promising. The second variant is intended as an imaginary middle ground between minimal and maximized approaches. it is composed of one fully covered roof area, with an adequate battery to support the modules. In addition, this system takes advantage of the sale of surplus generation on the market. Due to relatively high subsidy amount, combined with the surplus sale, the financial analysis of this system promises a return on investment during the first seven years of operation, with continually increasing positive numbers, when compared to the variant without a photovoltaic system. The third system is aimed at maximizing the potential gain, while staying under 10 kWp of installed power. Downside of this approach is a higher acquisition cost, but the estimated return on investment is significantly higher than that of the previous systems. In the last part, a multi-criteria analysis was performed to determine the most suitable system variant, in accordance to the requirements of the selected property owners. The results of this analysis showed the third system variant to be the most suitable, with a share of 47.6%.
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Design of a photovoltaic power system with battery storage for household purposes
Polášek, Radek ; Vanýsek, Petr (oponent) ; Vaněk, Jiří (vedoucí práce)
The aim of this thesis is to present the basics and functional principles of photovoltaics and photovoltaic systems, so that they can be later used design a photovoltaic energy system on a family house. The first part of this thesis deals with the theoretical introduction of photovoltaics and the individual components needed to design a photovoltaic system. The second part of the thesis then deals with the design and simulation of several variants of a system with different setups. The first type of analyzed and designed system is the off-grid system, whose primary objective in this design variant is to completely cover the consumption of the household. Although the total annual consumption of the selected household is not that high, achieving a complete self-sufficiency requires a very significant investment in system equipment., beyond the conventional design. The main cause of this are the problematic periods of low solar radiation through the year, especially during winter. As a result, the design of an off-grid system proves inadequate to the vision of the owners, even after the consideration of possible alternative versions of it. Alternative to an off-grid system is in our case a hybrid system which, unlike the first solution, also allows for connection to the grid to be supplemented by it during periods of low generation. After the introduction of hybrid system principles and analysis of possible financial subsidies, the individual hybrid system designs follow, each designed around a different focus point. The first simulated design is one aimed at as low initial investment as possible. This variant is also utilizing a virtual battery tariff, which allows, thanks to generated surplus energy, for to draw electricity from the grid at a reasonable discount. After the financial analysis, the system proves to be a relatively cheap variant, however, the potential investment return is not that promising. The second variant is intended as an imaginary middle ground between minimal and maximized approaches. it is composed of one fully covered roof area, with an adequate battery to support the modules. In addition, this system takes advantage of the sale of surplus generation on the market. Due to relatively high subsidy amount, combined with the surplus sale, the financial analysis of this system promises a return on investment during the first seven years of operation, with continually increasing positive numbers, when compared to the variant without a photovoltaic system. The third system is aimed at maximizing the potential gain, while staying under 10 kWp of installed power. Downside of this approach is a higher acquisition cost, but the estimated return on investment is significantly higher than that of the previous systems. In the last part, a multi-criteria analysis was performed to determine the most suitable system variant, in accordance to the requirements of the selected property owners. The results of this analysis showed the third system variant to be the most suitable, with a share of 47.6%.
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Various approaches to visualization of 2D and 3D objects in computer graphics
Polášek, Radek ; Kotásek, Miroslav (oponent) ; Langerová, Petra (vedoucí práce)
This semestral thesis aims to broaden people’s knowledge of the visualization processes used in modern computer software to construct two and three-dimensional objects. We will go over some of the essential definitions and concepts of functions and their parameters which we will then utilize in following chapters of this thesis to further explain additional processes that allow these functions to be graphically represented in a system of coordinates. The last chapter is focused on direct examples from one specific computer software and what the user should pay attention to in order to graphically interpret functions in a correct manner.
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Evaluative Language in Electronic Product Reviews
Polášek, Radek ; Mihai, Hana (oponent) ; Reich, Pavel (vedoucí práce)
This thesis will focus on the evaluative language in mobile phones reviews. For this purpose, review of Apple iPhone 7 is going to be used. Apple company has wide portfolio of products, such as computers, TVs, tablets, watches or mp3 players. Phones are still one of the most popular products. For this reason, phone reviews are perfect source for this thesis. The main purpose is to analyse and demonstrate the means of advertising in the field of corporate discourse and unveil the strategies and tools to influence the reader, appealing on emotions, morals and aesthetic perception. I suspect that reviews are rather biased to due to the used form of language, which might contain personal opinions of the author or methods of manipulation with the reader. These methods may be deployed in the text stylisation, appealing on the reader´s emotions and social background or in the decision making about providing certain information. This thesis is going to verify whether this statement is true or false.
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Rovnice nelineární difuze
Polášek, Radek ; Hájek, Jiří (oponent) ; Franců, Jan (vedoucí práce)
Práce se věnuje různým typům difuzních rovnic. Difuzní rovnice jsou odvozeny pro různé předpoklady prostředí. Blíže je pak popsáno Barenblattovo řešení rovnice pomalé difuze, na kterém jsou demonstrovány jeho vlastnosti.
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