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Software radio in the mobile radio-communication /telephony/
Ďurovič, Svetozár
In the paper various applications of software radio in wideband mobile telephony systems are presented. The architecture of the basic parts of the mobile systems 3G is described and special attention to the technical problems is given. The report contains many computer programs to illustrate the mathematical procedures.
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Coping with stress in women with alcohol abuse
Kotábová, Lenka ; Goldmann, Petr (advisor) ; Viktorová, Ida (referee)
Main theme of this work is generation of coping strategies by the women with alcohol dependence. Author is highlighting mounting society tolerance to stress and to alcohol abuse and she also shows this two phenomenon in mutual context. By the women side of population author particular describe dependence and border of society norm. Main goal is to bring to light and explore maladaptive strategies, by women with alcohol dependence, which are varied from ordinary population and the reason of such a behavior. To solve this issue author chose two methods. Firstly she uses data from TAT projective test, secondly verbal self examination test SVF. Inquire group of women author compare with control group of women, who embody no alcohol problem. Better success is expected from control group, because normal population should have better coping strategies. From result of research ensue, that women with alcohol dependence embody worse coping strategies indeed. But this difference is not such as strong as was expected. In declarative test SVF alcohol dependent women overestimate their strategies in comparison to TAT. On the base of this fact author offers hypothesis, that it can be only proclamation in presentation of coping strategies. Women from control group anticipate their strategies more accurately.
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Confidence in criminal justice and compliance in the Czech Republic
Homolová, Pavla ; Buriánek, Jiří (advisor) ; Podaná, Zuzana (referee)
The thesis is aimed at normative and instrumental aspects of compliance with the law and cooperation with the criminal justice system in the Czech society, namely trust in the police and criminal courts and their perceived legitimacy, personal morality and perceived risk of sanctions. Its purpose was to empirically verify the revised Tyler's procedural justice model of compliance as suggested by Jackson et al. (2011) within the Czech context. A review of literature on the topic implied potential constraints to validity of the model in the Czech society, mainly in respect to low levels of trust and legitimacy of the police and courts. Nevertheless, the empirical analysis based on structural equation modelling with use of two representative datasets (ESS Round 5 2010, Bezpečnostní rizika 1999) indicates trust in police procedural fairness to be - in contrast to fear of sanctions - a strong factor in predicting compliance. The obligation to obey the law shaped mainly by trust in procedural fairness and personal morality appear to be comparatively the most important predictors of compliance in the Czech Republic. The model was not significant in case of courts nor for the 1999 dataset, probably due to poor internal consistency of some constructs. Keywords confidence, legitimacy, criminal justice, compliance
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Heat and mass balance model of unit for biomass combustion
Tomšů, Ondřej ; Pavlas, Martin (referee) ; Máša, Vítězslav (advisor)
This work deals with the creation of a mathematical model for calculating mass and energy balances of the energy units for utilizing the biomass combustion by computational software W2E and it is engaged in necking the validity of the balance model for the real technology unit for combustion different types of biomass. There are presented basic informations of balances and described the procedure how to solve balance calculations of energy units. Introductory part deals with biomass as a renewable energy source, which has a large potential in energy system. There are presented all its important parameters, its types, methods of treatment and utilization power production. Next chapters focus on biomass combustion devices, theirs classification and theirs technological principles. For the specific type of biomass boiler (of capacity 1 MW with movable, inclined grid) - here was created balance model. The choice of this equipment is preferred primarily by the fact that the middle capacity power boilers can be considered as the most suitable heat sources in terms of efficient combustion of biomass. Another motivation is a key objective of this work, which is creation of balance model of the unit which energy utilizes of biomass, which belong into this category of heat sources and is available for real measurements. There are presented the available computing systems for balance modeling with the preference of the analysis program W2E and MS Excel. They are verified as the best instruments for creation balance model at the practical chapter of this work. The main output of presented thesis is thus balance model developed in W2E program which has been compared and modified to the real characteristics of biomass boiler. For this purpose were used the archived data from previous measurements and new actual measurements, which focused on the acquisition of the missing operational data and verifying the reasons of variance of the model and real status. In the conclusion, there are evaluated the basic operating parameters of the technology in various operating states by W2E analysis model.
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Fossil fuels substitution in large combustion plant
Hájek, Zdeněk ; Popela, Pavel (referee) ; Touš, Michal (advisor)
The thesis aims at current issues of using renewable resources here in the Czech Republic, mainly on biomass co-firing with fossil fuels in large combustion plant. The introduction provides an overview of systems for biomass co-firing. Further the using of optimization for solution problem of integration biomass fuels into existing large combustion plants and planning its operation conditions is presented. The main point of this thesis lies in creating of a user interface for modeling and optimization tool. Its functionality will be proved by solving a case study involving the analysis of possibilities for replacing fossil fuels due to the limited availability of coal in the market.
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Manufacturing of guiding rail
Klímová, Jana ; Peterková, Eva (referee) ; Šlais, Miroslav (advisor)
Subject of this diploma thesis is manufacturing of the guiding rail HB 02150 made of metal sheets and used for table slide rail in drawer system. This thesis was made in cooperation with Hettich ČR Company which is producer of furniture hardware. Theses contains theoretical part which explains matters of cutting and bending technology. Marginally will be mentioned matters of spot welding. Practical part contains explanation of production of guiding rail, lay-out of bending roll and cutting tools. In this work there is also described solution of problem with wastrels caused by faulty welding of metal sheets and the draft of welding fixture which solves this problem. Economical and technical summary of this manufacturing process is the last part of this thesis.
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Strain stress analysis of BS splint
Řehák, Kamil ; Fuis, Vladimír (referee) ; Florian, Zdeněk (advisor)
This master‘s thesis deals with strain-stress analysis of hip joint together with the final applied total endoprosthesis with Burch-Schneider cage. The main point of my work was to find the solution of stress–strain analysis state, which has been mentioned before in connection with Burch-Schneider cage. I describe the technique of geometric creation of whole body system, component´s materials or conditions which are neccessary for calculation. In coclusion there are results achieved in variants. In the first option the case of bone tissue was considered, which don’t reach degradation mechanical properties effect straining under Burch-Schneider cage. In some cases when the bone tissue is untimely forced, the necrosis of bone tissue takes place under Burch-Schneider cage. This possibility is described in the second option of type. For every option there was a case which was calculated with applied screw or without it. In all option mechanical features of cancellous bone tissue and their change influence on achieved results were considered. This problem was solved computational simulation in commercial software Ansys Workbench 12.0.
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Conditioning Chamber for Thermal Testing
Benáček, Martin ; Zuth, Daniel (referee) ; Vdoleček, František (advisor)
Diploma thesis deals with measurement of temperature. The main goal of the thesis is to suggest and realize a Conditioning Chamber for Thermal Testing of small equipments and sensitive elements. The thesis is divided into theoretical and practical part. In the theoretical part are mentioned possibilities of miscue of measurement, equipments and sensitive elements for the measurement of temperature and their dividing. Furthermore, the measurement software and hardware is described for controlling and operating of the system. The practical part is detailing concept and realization of the setting of the Conditioning Chamber, which is controlled by graphical measurement software Control Web 6. The thesis is finished by exemplary measurement and is being service of practical approximation of the measurement test.
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EDU-mod model control by programmable logic controller FX3U
Marek, David ; Němec, Zdeněk (referee) ; Marada, Tomáš (advisor)
This work was created as a support for teaching at the Faculty of Mechanical Engineering of the Brno University of Technology at the Institute of Automation and Computer Science for the study of Programmable automatic machines. The aim of this work was to acquaint with the models of EDU-mod system, Mitsubishi FX3U-32M programmable automatic machine and the GX IEC Developer 7.01 development environment, then to create the sample settings with the tasks controlling elaboration and to verify their functionality by PLC consequently.
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Multifunctional building Litomyšl
Kovář, Lukáš ; Utíkal, Aleš (referee) ; Utíkalová, Ivana (advisor)
Diploma thesis deals with the design of the multifunctional building located between Havlickova and F. Vogner streets in relation to the existing building in Litomyšl. Building plot is slightly sloping, at the rear goes into greater inclination. The building has four aboveground floors and one underground floor. The building includes services, located in ground floor, administrative premises decomposing in the second and third floor and apartments on the top floor. In the basement are located parking spaces. Supporting skeleton of the building is a cast-in-place concrete frame. Roofs are designed as a flat single shell. In part of roof over third floor is a green roof. The building is founded on piles. Due to the occurrence of water pressure is building an extra solved waterproofing system with checks and activation. The work includes text messages, drawings for building construction, fire safety design, construction and physical assessment of building structures and specialization from concrete structures.
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