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Magnetic field Supported Discharge Based Plasma Sources
Havlíček, Josef ; Kudrna, Pavel (advisor) ; Tichý, Milan (referee)
Main aim of this work was measurement of a floating potential fluctuations in the cylindrical magnetron in classical configuration in neon. Two Langmuir probes were used for measurement of wave vector. The following values were measured: pressure p in range 1-7 Pa, magnetic induction B in range 10-40 mT, discharge current I in range 5-100 mA, discharge voltage U and floating potential Uf. Fluctuations were described by dependencies of power spectral density on frequency S(f) and by histograms S(k,f), where k is wave vector. Several discharge modes were observed in the magnetron. These are characterized by different values of discharge voltage, electric field in positive column, magnitude of the floating potential etc. The discharge conditions, where peaks were observed in spectra, were determined. Only one peak with frequency in range 4-16 kHz was mostly observed. Most of these peaks had zero wave vector in histogram S(k,f), i.e. the floating potential synchronously oscillated in the whole discharge area. For some discharge conditions histograms with non-zero wave vector for noise background were observed.
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Doppler blood flow indicator
Böhm, Richard ; Bubník, Karel (referee) ; Rozman, Jiří (advisor)
This bachelor‘s thesis deals with literature search of basis of ultrasonic and Doppler methods of measuring blood flow velocity. It also deals with the evaluation of Doppler signals and with the individual functional system blocks, with the indicator of blood flow with the operating frequency of 4 MHz, with the generated ultrasonic intensity of 100 mW/cm2 and with the average transmitting changer in shape of D = 8 mm. Furthermore, experimental verification of individual system components is included.
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Wireless dimmer
Vávra, Jan ; Šteffan, Pavel (referee) ; Pavlík, Michal (advisor)
The goal of this thesis is to design and realization wirelessly controlled light dimmer. The microcontroller CC430F513x made by Texas Instruments is used as a control unit. It ensures data transfer from a user to the lighting itself. Information will be transmitted by radio frequency at 868 MHz. The design will include light bulb lights and energy saving LED light sources, which are from manufacturer intended to regulate brightness.
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Pohybové aktivity jako primární prevence
MARTINEK, Lukáš
The dissertation deals with the iss. of physical activity in connection with primary prevention. It concerns particularly primary prevention of non-infectious diseases with massive incidence. It is important to know the principles that can contribute to the efficiency of nursing intervention in the area of physical activity. The model of stages of readiness for change plays a significant role here. The goal of the dissertation consisted in mapping the quality and quantity of exercise in ealthy population and its differences related to gender, age, education, and its role as a tool influencing the quality of health condition. Based on that goal, the following hypotheses were stated: Men and women differ in physical activity quality. Men and women differ in physical activity quantity. The quantity of physical aktivity decreases with increasing age in healthy population. The quality level of physical activity changes with the degree of education achieved. The quantity level of physical activity changes with the degree of education achieved. Further, the following research question was asked: How does physical activity contribute to bio-psycho-social aspects of life? The research within the dissertation was designed as quantitative-qualitative research. The selection set of the quantitative part consisted of 1122 respondents who constituted a representative set of adult population for the Czech Republic, according to the preset socio-demographic indicators. The data collection was performed in form of questionnaire research through the standardized short version of IPAQ questionnaire. The degree of dependence of selected categorial features was determined by chi-square test. Ordinal and cardinal data, after verification of normality by Shapiro-Wilk test, were processed with the help of non-arametric Mann-Whitney test, Wilcoxon paired test and Spearman non-parametric correlation. The qualitative research took place in form of a six-month experiment in which the research group (20 probands) was subject to intervention of physical activity, while the control group (34 probands) lived common life. Before and after intervention, subjectively perceived quality of life was measured in both groups with the help of selected questions of the standardized WHOQOL 100 questionnaire, and body composition was measured with the help of biolectrical impedance with Bodystat 1500 device. The research found that both men and women spend most of the day sitting. That fact is very probably related also to the Body Mass Index, showing an average value of 25.6 kg/m2 in the 1122 respondents, which is a value ranking in the category of overweight. It was proved that men are more active than women, preferring more intensive physical activity, which complies fully with statements of other authors. But an interesting fact is that the intensity and frequency of physical activity are influenced by education. Particularly respondents with university education are more active. On the contrary, age is related to decreasing intensity and frequency of physical activity, which is stated by other authors as well. The dissertation had four goals set and all of them were met. The five hypotheses were verified too. It can be stated that men and women differ in the quality and quantity of physical activity. It can also be stated that the level of quality and quantity of physical activity decreases with increasing age. And finally, it was shown that the quality and quantity of physical activity change also with the level of the education achieved. Regular physical activity contributes to improve the subjectively perceived psycho-social aspects of quality of life. They influence the body composition of the probands too. Nursing, considered an irreplaceable and self-standing scientific discipline, can contribute essentially to the development of active lifestyle not only of ill but also of healthy individuals.
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Pulse modulations
Šiška, Martin ; Atassi, Hicham (referee) ; Číž, Radim (advisor)
This work deals with the analysis of pulse modulation issues, work is divided into six chapters. The first chapter of the thesis deals with pulse modulations as a whole. It explains the concept of modulation, the distinction between analog and digital modulation, and there is the basic classification of pulse modulation done. The second chapter focuses on the issue of non-quantized pulse modulation. For each modulation belonging to this group is verbally and graphically explains the principle of its activities. In the third chapter, which is similar to the second chapter, the work focuses on quantized pulse modulation. Again, each of these modulations explained its basic principle. It is also in this chapter outlines the design models in Matlab-Simulink. The fourth chapter presents calculations and tables with calculated values needed for simulations. In the fifth chapter, a comparison waveforms. It contains a discussion about the dependence of modulation on their parameters, parameters of the input signal and the sampling frequency. In the final sixth chapter deals with the early design concepts and detailed diagrams for the production of demonstration products.
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Predisposing factors of recurrent vulvovaginal candidasis IV.
Stopková, Eva ; Jílek, Petr (advisor) ; Kestřánek, Jan (referee)
1 Abstract Diploma thesis deals with recurrent vulvovaginal dyscomfort, which is most common problem solved in gynecologist's office. At least once within the lifespan troubles these disease more than 75% women. Five to 10% percent of female population in the fertile age has repeated attacks of colpitis. This study involved university students (n = 145). Incidence of recurrent vulvovaginal candidiasis (RVVC) like dyscomfort in was 11%. The goal of this study was the determination of predisposing factors with help of questionnaire based search. Each questionnaire comprises 49 structured questions. The return ratio was 72,8%. The RVVC group involved women, who reported 4 and more episodes of vulvar dyscomfort (itching, swelling, burning or discharge) in the last year or in at least in one of last four years. The control group represented 42 women (28, 9%) with no history of any symptoms mentioned above. By evaluation of the questionnaire we have described number of factors, which increase risk of RVVC, these are primarily: diet high in sugar, continuous use of panty-liners in time outside of menses, taking a long hot shower, wearing tight trousers, smoking of cigarettes, higher number of sexual partners, shaving of pubic hair for the most part, higher frequency of sexual intercourses, non-coital sexual...
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Opportunities of applying drama education in the Scholastic educational program of the elementary school
Holemá, Irena ; Spilková, Vladimíra (advisor) ; Marušák, Radek (referee) ; Provazník, Jaroslav (referee)
Opportunities of applying drama education in the Scholastic educational program of the elementary school ABSTRACT Key words: drama education, Scholastic educational program for elementary schooling, implementing new courses into classwork, pedagogical research, key competencies. The dissertation work pursues an analysis of the process of implementing new subject matter anchored in the scholastic educational program of a given elementary school into the practical classwork. This subject is the educational subject of drama education. In the theoretical section of the work, based on the specialist literature, are compiled the fundamental assumptions and circumstances, which influenced to a high degree the development of the sphere of drama education and contributed to its entry to the schools. Attention is paid to the topics of the principles of the transformation of Czech education, to the principle of the humanization of the schools, to the projects of school reform and the issues of the key competencies. Presented are studies mapping the frequency and the scope of the implementation of drama education in Czech schools in specific regions. The objective of the research section of the work is to analyze this process through a form of pedagogical research permitting personal participation in the process of...
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Appreciatve suffixation in spanish and strategy of its translation
ŠINDELÁŘOVÁ, Kateřina
The bachelor thesis describes possible translations of some diminutives and augmentatives and compares the frequency of the use of these translations on the basis of their occurance in The Czech national corpus. There are theoretically explained the ways of enriching vocabulary, yet the biggest part is dedicated to appreciative suffixation in czech and spanish language, to ways of formation of diminutives and augmentatives and the strategy of their translations. In every chapter there are mentioned the most common czech and spanish apreciative suffixes and also the description of modifications of the derived words. There are also available graphs which show the frequency of the use of different translations which appear in corpus.
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Popularity of Gastronomical Facilities and Drinks in 2016
Vinopal, Jiří
In September 2016 CVVM SOÚ AV ČR replicated some of the questions about gastronomical facilities, which constitute a part of research project Pubs and Beer in Czech Society that is under way since 2004. This press release maps basic results about the preferences of particular types of gastronomical facilities, motives and frequency of their attendance and also the favourite drink during social encounters.
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Beer in Czech society in 2016
Vinopal, Jiří
In September 2016 CVVM SOÚ AV ČR replicated some of the questions about beer, which constitute a part of research project Pubs and Beer in Czech Society that is under way since 2004. This press release maps basic trends about the share of consumers among Czech citizens and about both amount and frequency of beer consumption from 2004 to 2016. The status of non-alcoholic beer is mentioned as well.
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