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Experimental workplace of controlled drive with high dynamics
Rozkošný, Miroslav ; Marada, Tomáš (referee) ; Němec, Zdeněk (advisor)
My diploma thesis deals with the basic principle of the frequency inverter and his construnction. In the next section are analyze the basic properties and characteristics of the using equipment. The main part of this thesis is to investigate the dynamic properties of asynchronous electric motor controlled by a frequency inverter using STARTER. The results of experiments are compared and analyzed.
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Implementation of control a DC motors
Rozkošný, Miroslav ; Andrš, Ondřej (referee) ; Houška, Pavel (advisor)
The bacheleor thesis deals with the basic classification of DC electromotors and with the principles of their operation. Another part of the thesis describes ways of measuring current and position. Consequently, it describes basic ways of regulation which are then realised with the help of the developing environment NI LabVIEW and experimentally verified. The results of individual experiments with different types of regulators are compared and analysed.
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The mechanisms and efficiency of uptake of selected micropollutants by crops irrigated with reclaimed wastewater
Šrédlová, Kamila ; Semerád, Jaroslav ; Šereš, M. ; Mrvová, M. ; Rozkošný, M. ; Cajthaml, Tomáš
Water scarcity and the quality of fresh water are important global issues, which relate to all areas of human activity. One of the possible ways of reducing water consumption in agriculture is using treated (recycled) wastewater for irrigation. However, when applying recycled wastewater or biosolids to crops, it is necessary to monitor the content of micropollutants. The Summary research report describes the mechanisms of uptake of selected micropollutants (perfluorinated alkyl compounds and pharmaceuticals) by crops during automated irrigation with recycled wastewater. A detailed literature review complemented by experimental data describes micropollutant bioaccumulation in the fruits of several plants, which represent an exposure pathway for humans. Furthermore, the risk of human intake of micropollutants from crops potentially contaminated when grown using this technology is outlined
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Methodology for the Classification and Evaluation of Industrial Heritage: Water Management
Caletka, Martin ; Dráb, Aleš ; Dzuráková, Miriam ; Forejtníková, Milena ; Hronek, David ; Hudcová, Hana ; Julínek, Tomáš ; Račoch, Radka ; Rozkošný, Miloš ; Kuča, Karel ; Borovcová, Alena ; Drnek, Kryštof ; Kolka, Miroslav ; Matěj, Miloš ; Ryšková, Michaela ; Urbánek, Radim ; Frajer, Jindřich ; Létal, Aleš ; Pavelková, Renata ; Kotari, Sixtus Bolom ; Sviták Zbyněk ; Vyskočil, Aleš
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Agenturní zaměstnávání
Rozkošný, Martin
This bachelor thesis aims to the issue of agency employment, its analysis, identifica-tion of the drawbacks and suggestions to improvements. Main focus is on the overuse of the agency employment, unequal treatment of the groups of the regular and agency employees. Also difficulty of the training of the agency employees is examined. At the end of this thesis is summarizing pros and cons, and frequent problems from the viewpoint of every member of this relationship.
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Sustainability principles of fish stock of cultural monuments and historical settlements water elements
Adámek, Zdeněk ; Rozkošný, Miloš ; Hudcová, Hana ; Kratina, Josef ; Sedláček, Pavel
The object of the monuments procedure is to put into practice suitable and verified principles of composition of fish stocks of cultural monuments water elements, for production ponds and reservoirs, and for ornamental reservoirs, basins and pools. At the same time, it brings information about methods of fish stock management, principles of introduction of predatory fish, use of fish for biomelioration of aquatic environment. It also provides recommendations for the maintenance and care of farmed fish. To achieve this, it also includes a section aimed at identifying and describing an appropriate approach to solutions to improve water status, including water quality, and ensure the sustainability of fish stocks. Part of the monuments procedure is also a brief analysis of the issue of degradation of the reservoirs and ponds environment from the perspective of fish survival, due to pollution and water eutrophication. It also describes the individual causes of the unsuitable state of the aquatic environment.
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Experimental workplace of controlled drive with high dynamics
Rozkošný, Miroslav ; Marada, Tomáš (referee) ; Němec, Zdeněk (advisor)
My diploma thesis deals with the basic principle of the frequency inverter and his construnction. In the next section are analyze the basic properties and characteristics of the using equipment. The main part of this thesis is to investigate the dynamic properties of asynchronous electric motor controlled by a frequency inverter using STARTER. The results of experiments are compared and analyzed.
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Influence of the various incubation time on the value of BOD
Debnárová, Andrea ; Dolejš, Petr (referee) ; Rozkošný, Miloš (advisor)
Biochemical Oxygen Demand (BOD) is commonly used for determining how fast biological organisms use up oxygen in a body of water. It is one of the essential methods used in water quality management and assessment. BOD could be considered as a quality level indicator of biologically treated water. This process is very time-dependent but most common period of incubation is five days - BOD(5). In this thesis different periods of incubation are compared - for BOD(5) with five days incubation period and BOD(2+5) with five days incubation period but also placed for two days to lowered temperature environment. These comparative tests were made for different types of water (surface water, waste water - water from mechanical level and biological level of treatment) For all kinds of determination of BOD the dilution method was used (ČSN EN 1899).
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Implementation of control a DC motors
Rozkošný, Miroslav ; Andrš, Ondřej (referee) ; Houška, Pavel (advisor)
The bacheleor thesis deals with the basic classification of DC electromotors and with the principles of their operation. Another part of the thesis describes ways of measuring current and position. Consequently, it describes basic ways of regulation which are then realised with the help of the developing environment NI LabVIEW and experimentally verified. The results of individual experiments with different types of regulators are compared and analysed.
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Výzkum vodních ekosystémů v rámci povodí
Vysoké učení technické v Brně, Fakulta stavební, ÚVHK, Brno ; Ústav biologie obratlovců AV ČR, Brno ; Mendelova zemědělská a lesnická univerzita v Brně, Lesnická a dřevařská fakulta, Ústav tvorby a ochrany krajiny, Brno ; Výzkumný ústav vodohospodářský T.G. Masaryka, Brno ; Kokeš, Jiří ; Šálek, Jan ; Jurajda, Pavel ; Brtníková, Helena ; Forejtníková, Milena ; Kupec, Petr ; Rozkošný, Miloš
Práce na projektu jsou zaměřeny na monitoring jednotlivých složek vybraných revitalizovaných vodních a mokřadních ekosystémů v povodí toků s cílem určit míru jejich odezvy na provedená opatření či míru přiblížení stanovenému cílovému stavu. V roce 2004 byla vypracována rešerše na řešené téma, byly zhodnoceny získané podklady pro výběr pilotních lokalit. Zpráva dále obsahuje přehled provedených revitalizačních akcí na území ČR do roku 1992, popis metodiky výběru pilotních lokalit a provedení výběru. Předběžně byly zpracované získané výsledky monitoringu všech složek vodních ekosystémů ve vybraných lokalitách, byl vypracován návrh účelových monitoringů pro další fázi řešení projektu. Byly zahájeny práce na stanovení vlivu chemického stavu na celkový ekologický stav toků. Analýza výsledků prováděných monitoringů vlivu antropogenních zdrojů znečištění na stav vodních ekosystémů ve vybraných a dlouhodobě sledovaných povodích.
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