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Intergenerational Relations and Cooperation in the Teaching Staff and Their Influence on Education.
Soukupová, Simona ; Kovaříková, Miroslava (advisor) ; Richterová, Magdalena (referee)
The thesis is divided into a theoretical part and a research investigation. In the theoretical part the author deals with communication and defines the concept. Then, it deals with conflicts, which the author defines and describes the different kinds and also delves into rivalry and generational conflicts. The thesis also describes teaching models as a source of conflicts. It describes the relationship to self and relationships to others. Last but not least, it discusses the school, the teaching staff and the vision of the school under study. The second part consists of a research investigation. The research investigation was conducted in the form of an online questionnaire for teachers and for pupils. The questionnaire for teachers consisted of both closed and open-ended questions and the questionnaire for pupils consisted of closed-ended questions only. The data were presented in graphical form. The questionnaires are attached in the appendices at the end of the thesis, where the answers to the open-ended questions for teachers are also attached. Then, in the conclusion, the author suggested measures to improve the climate of the teaching staff based on the data. The aim of the thesis was to find out whether the generational differences in the teaching staff affect the process of pupils'...
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Continuous mathematical models of population dynamics
Pecka, Luboš ; Opluštil, Zdeněk (referee) ; Franců, Jan (advisor)
The aim of this thesis is to describe the most frequent models describing population dynamics and then to perform some numerical experiments in the MATLAB environment. These simulations should validate our theoretical results. The models are sorted from the basic models to the most complicated and are divided into the models which describe dynamics of one population and models of coexistence of two biological species. The master's thesis icludes also a program for drawing graphs and trajectories of solutions of models described in this thesis including a description of this MATLAB program.
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Coexistence of the communication systems in ISM band
Nowak, Dan ; Kejík, Petr (referee) ; Prokopec, Jan (advisor)
The purpose of this work is to study the physical layer technology of the communication systems working in the ISM band, to describe coexistence mechanisms in the selected frequency band, consequently to create models of the physical layers in the Simulink interface, to simulate synchronous transmission of the devices and to modify the model in order to correspond with coexistence mechanisms described in IEEE standard 802.15.2. The practical part of this paper examines the effect of Wi-Fi device output power on the transmission speed during synchronous transmission with Bluetooth device.
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Signal processing in ZigBee system
Miloš, Jiří ; Bradáč, Zdeněk (referee) ; Hanus, Stanislav (advisor)
Master's thesis The Signal Processing in ZigBee System is focused on properties of Physical Layer of ZigBee (standard IEEE 802.15.4 - 2003). The work consists of three parts. The first part contains common view on using and properties of ZigBee. The next part focuses on the Medium Access Control Layer and in detail on the Physical Layer. There described signal processing in the Physical Layer in individual radio bands. The last part of the project contains the process of modeling in the MATLAB for both models of system ZigBee (bands 868/915 MHz and 2450 MHz). The last part of thesis deals with the simulations of BER depending on Carrier-to-Noise Ratio. Also examined the coexistence of systems operating in the same or a nearby frequency band. Based on the results of simulations there are given recommendations for the use of the ZigBee system in minimizing BER.
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GSM-EDGE and UMTS Systems Coexistence
Gleissner, Filip ; Hanus, Stanislav (advisor)
The dissertation thesis deals with the investigation of the coexistence of GSM–EDGE and UMTS systems with focus on the physical layer of the systems. The aim is to provide a set of recommendations for practical cooperation while the systems operate in both the separated and the common radio bands. A detailed description of signal processing of both the systems on the physical layer is presented. On the basis of this description, models of both systems were created and implemented in the MATLAB environment. The simulations are focused on the physical layer quality parameters, especially the bit error ratio evaluation for various ratios of useful signal power to noise power during the transmission over the radio channel. Simulation is also used to examine the quality of received useful signal while it is interfered by signals from the same and adjacent channels. The purpose is to determine the isolation between these adjacent channels, when the bit error ratio of the useful signal does not exceed a certain reference value. The simulation results are subsequently subjected to comparison with the results of the experimental measurements in laboratory conditions. Before the measurements are carried out, a study of possible interference types is performed. Consequently, the crucial parameters of the measuring equipment used are verified. From the results of simulations and measurements, the proposal of a minimum and recommended carrier separation between both the systems is presented in order to efficiently utilize the assigned frequency spectrum. Furthermore, for the cooperation in both the separated and the common radio bands, the necessary precautions are given for reaching the required isolation and thereby inter-system interference minimization.
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Coexistence of DVB-T2 and LTE in the 800 MHz band
Walach, Dominik ; Miloš, Jiří (referee) ; Polák, Ladislav (advisor)
This bachelor thesis deals with the study and evaluation of coexistence scenarios which can occur between DVB-T2 and LTE systems in the UHF band 800 MHz Both DVB-T2 and LTE systems are briefly described, and their common frequency bands are defined. An appropriate laboratory workplace is proposed and realized for the measurement, analysis and evaluation of the DVB-T2 and LTE coexistence scenarios. These systems work in adjacent or even in the same frequency bands. Thereby these systems can coexist, and different coexistence scenarios can occur.
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From sea to summit
Staniczek, Jan ; Solčáni, Ján (referee) ; Šrámek, Jan (advisor)
In my thesis I try to convey strange feelings that are inherently connected with post-anthropocentric, ecological thinking of inter-object coexistence, through an installation of a series of clay speakers. From a theoretical point of view, I rely upon Fisher's conception of weird and Morton's conception of dark ecology, in which I found a surprisingly apt articulation of my own feelings, as well as inspiration for further thinking and imagination. The main points in the otherwise difficult to define direction of my work are the planes of blurring borders, ephemerality of experience and intimate contact with otherness.
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Neighborhood
Bartoš, Roman ; Rudiš, Martin (referee) ; Mléčka, Jan (advisor)
For millennia people modified and adjusted their surroundings in an endless hunt for comfort, safety and survival. Humanity grew, evolved, matured and died together. The environment directly reflected the efforts made by its community. Families lived under one roof together, right next to the village common. Humans knew to respect the nature and coexisted with it. This changed drastically over the last couple centuries. After several technological breakthroughs and a few wars the technological evolution accelerated right out of control. The need for a neighborhood begun to fade. Sunday markets were replaced by supermarkets, eye-to-eye talks became scarce as we glued ourselves to various screens. Low fences were replaced by tall concrete walls, we built a system of selfish private bubbles. NEIGHBOR+HOOD attempts to find a compromise between both extremes. It is understanding and balance among the spaces for ME and the spaces for US. It is a place for neighbors, a tight-knit community of friends under one tree, sitting at a common table. It is a natural, comfortable, peaceful, safe and humane environment in the suburbs. The design offers to the fictional inhabitants of Udánky hill an opportunity to identify with their home and its surroundings. All that and more in total symbiosis with surrounding nature. NEIGHBOR+HOOD is human, self-sustaining, ecological housing estate. It is the home of neighborhood.
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WLAN and Bluetooth Systems Coexistence
Mikulka, Jan ; Hanus, Stanislav (advisor)
The dissertation thesis deals with a WLAN and Bluetooth systems coexistence. A Bluetooth standard works in an unlicensed frequency band 2,402 – 2,480 GHz. This frequency band is also used by an IEEE 802.11b/g standard (Wi-Fi) which is the most extended representative of WLAN networks. Because Bluetooth and Wi-Fi systems operate in the same frequency band, a mutual signal degradation may appear, when devices are collocated in the same area. In the first part of the dissertation thesis there is a brief summary of 2,402 - 2,480 GHz frequency band regulations and its usage. There are described physical layers of Bluetooth and IEEE 802.11b/g standards and techniques used for a collision avoidance. The main part of the dissertation thesis deals with a development of a new Matlab Simulink model for investigations of the Bluetooth and Wi-Fi standards coexistence. Physical layer models and results of the coexistence simulations are verified by a measurement in real conditions with a help of a modern vector signal analyzer. The results are presented in a graphical form and a brief summary is attached at the end of each chapter. Corresponding tables of simulated and measured values are available in the enclosed CD.
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