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Planar fractal filter on defected ground substrate
Kufa, Martin ; Hazdra, Pavel (referee) ; Raida, Zbyněk (advisor)
The diploma thesis is focused on the design of planar filters combining fractal layouts and defected ground substrates. The diploma thesis can be divided into three main parts. First, basic knowledge about fractals is presented (creation of Minkowski Island and Koch loop, e.g.). Then, the principle of defected ground structure is described, and a combination of fractal motives with a defected ground structure is briefly introduced. Properties of investigated structures are verified by CST Microwave Studio and Ansoft HFSS. Second, different defected ground structures under the 50 transmission line are designed, and conventional equivalent filters are created. Filters are simulated and compared. In final, the investigated filters are recalculated for the substrate Arlon 25N, simulated, manufactured, measured and confronted with a conventional filter on the defected ground substrate.
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Processing of fractal genomic signals
Nedvěd, Jiří ; Provazník, Ivo (referee) ; Valla, Martin (advisor)
This diploma project is showen possibilities in classification of genomic sequences with CGR and FCGR methods in pictures. From this picture is computed classificator with BCM. Next here is written about the programme and its opportunities for classification. In the end is compared many of sequences computed in different options of programme.
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Conical Sierpinski monopole
Všetula, Petr ; Pavel,, Hazdra, (referee) ; Raida, Zbyněk (advisor)
The thesis deals with numerical modeling of planar Sierpinski monopole and modified Sierpinski monopole, outgoing from Sierpinski structure. Next, it focuses on modeling of the conical modified monopole and conical Sierpinski monopole created by transferring of modified structure to conical surface. The properties of these multi-band antennas are verified by simulations in CST Microwave Studio 2009 and compared with the results published in available literature. The conical Sierpinski monopole is then optimized according to specified criteria. The optimized antenna is designed and its properties are experimentally verified.
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The Manual
Klusová, Katarína ; Houser, Milan (referee) ; Rathouský, Luděk (advisor)
A mixture of symbols, authorities and theories that man need´s to absorb nowdays, is source for many confusing manuals, how to deal with our life, make decisions, or which political party to vote. Exactly the same time, these symbols of authority and theories are an essential part of our culture and education, and that they are looking for inspiration, information and explanations. Sometimes I dream that my source of information is nothing more than nature and its observations. In a utopian world without information provided by them I watched the world at my own pace, subsequently walking from one information to another.In the real world from different disciplines, which explore the universe in great detail, vast quantities of information flows, which the ordinary man in his level is not capable scientificly understand. For instance, when I read about Hawking's paradox, I can imagine how it's probably meant, but I don´t understand the calculations, and resources .. Well anyway, I add this information to my concept of understanding space and black holes. I perceive universe through intuition and its fragments-specific expression of the universe- I perceive through reason. The first series is a picture of my view of the universe by means of symbols - codes that people agreed use- to communicate the inexpressible. Universe is still on the eyes, and whenever I start to deal with its sub-parts, I can recognize its wholeness . Other pictures are formulation and development of selected key topics of the universe (according to my personal priorities).At this point, my work is mainly based on switching between a total and detail. What happens to the "collection" image, and affects other images detail. The last image of the series is once again the image of the wholeness . The spiral development to the second floor above the first image. Projecting the universe through me will be images transformation. Picture, even it is symbolic and symbolizing, is forming to kind of logo. Moreover, It occurs the same logo as a symbol of the universe mirroring by my being. Universe in the universe. Microcosm in the macrocosm. My individuality in the universe. Fractal.
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Nonlinear Physics and Chaos Theory
NÁHLÍK, Tomáš
This thesis deals with nonlinear physics and chaos theory from its begining, through the main people to its application in various fields. This work has also part of fractals and fractal geometry. There are also source codes of various examples.
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Fractal analysis of economic time series
Krýcha, Josef ; Tichý, Vladimír (advisor) ; Smrčka, Pavel (referee)
This thesis focuses on fractal analysis of economic time series. Chapter One introduces fractal analysis as a method of exploring time series and gathers information about progress and current state of understanding in this field. Chapter Two focuses on design and development of computer software, which will calculate selected fractal indices. Chapter Three is experimental and shows the results and discussion of economic time series (popular stock market indexes and currency exchange rate) analysis that have been obtained from the software developed in Chapter Two.
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