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Study of the dispersion of hazardous gas in an underground room.
Nosek, Štěpán
This study investigated airflow and pollutant dispersion in an underground room using two different ventilation methods: natural and forced ventilation. The experiment was conducted on a scale model of the room in a wind tunnel using physical modelling. The main objectives were to understand the airflow behaviour and dispersion of passive pollutants in a real environment under isothermal conditions.
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Measurement of the photocatalytic efficiency of FN NANO®2 coating on an idealized urban model
Nosek, Štěpán
An experiment was conducted to test the effectiveness of the FN NANO®2 coating in removing a harmful pollutant (NOX) by photocatalysis on a surface in a model of an urban street canyon. The experiment was conducted in a wind tunnel under controlled conditions, simulating two cases of street canyon pollution: from a line source within the canyon and a polluted incoming boundary layer. The results showed that the coating has an average efficiency of 15% when removed from NOX, with the efficiency decreasing with height within the street canyon. The removal efficiency depends on the type of pollution. In the case of the polluted incoming boundary layer, the coating showed very high efficiency in removing NO (average efficiency of 19%) and NO2 (average efficiency of 7%). These results show that both methods can be used to analyse the removal of NOX concentrations by the FN NANO®2 coating in a street canyon.
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Measurement of photocatalytic efficiency of FN NANO®2 coating on Legerova street model
Nosek, Štěpán
An experiment was conducted to test the effectiveness of the FN NANO®2 coating in removing a pollutant (NOX) by photocatalysis on a surface in a model of a real urban street canyon. The experiment was conducted in a wind tunnel under controlled conditions and simulated the case of pollution of a Legerova street model by an upwind boundary layer polluted by NOX concentrations from a car. The results showed that the coating has a higher degradation efficiency for NO (up to 15%) than for NOX (max. 12%), with the efficiency depending on the investigated position. The lowest efficiency was achieved in streets aligned parallel to the upwind boundary layer, which are naturally better ventilated.
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Regionalisation of Active Labour Market Policy in Czechia
Nosek, Štěpán ; Feřtrová, Marie (advisor) ; Soukup, Tomáš (referee)
Master's thesis deals with the regionalisation of the active labour market policy in Czechia. We analyse strategic documents which deal with unemployment and we try to find out to what extent they stress support for certain regions. Then, we examine the mechanism which is used to distribute the money across regions. Further, we study the allocation of money distributed within the Czech national active labour market policy (1998-2009) and within the European programmes realized in 2004-2006. Lastly, we give an overview of the possibilities of regional (local) actors to influence the situation on regional (local) labour market and we recognize that their work can differ across regions. The results of our study show that despite claims about the need to support the regions which are badly affected by high rates of unemployment and notwithstanding the mechanism which is made in favour of these regions, the funds are not implicitly distributed to regions with the highest rates of unemployment. Our analysis also found out that the most important actor on regional (local) labour market is the labour office and that the role of other actors in merely complementary, although the situation regionally varies. Keywords: explicit regional policy, active labour market policy, regionalisation, regional impact,...
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Territorial Cohesion in the European Regional Policy Discourse - A General Framework and Czech Specificities
Nosek, Štěpán ; Blažek, Jiří (advisor) ; Rumpel, Petr (referee) ; Ježek, Jiří (referee)
This dissertation deals with the concept of territorial cohesion and place-based approaches that are understood as a tool to achieve territorial cohesion. Specific attention is paid to Territorial Impact Assessment, which is most frequently designed as a method for adjustment of place-based approaches in order to reflect specific needs of particular types of regions. The theoretical part discusses interpretations associated with territorial cohesion in academic literature. It also analyses arguments of proponents and opponents of place-based approaches as a tool for considering territorial specificities in sectoral policies. Further, the dissertation focuses on the evolution of the Territorial Impact Assessment at the European level and its position within other impact assessment tools. The main aim of the empirical part is, first, to identify ways in which EU member states interpret and fulfil the EU goal leading to territorial cohesion and, second, to define how EU member states use place-based approaches to achieve territorial cohesion. Specific attention is given to Czechia, its understanding of territorial cohesion, and its experience with the implementation of place-based approaches. Research shows that EU member states do not deal with territorial cohesion uniformly; instead, they project...
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Interpretation of Tadeáš Biron's poetry selection Neviditelné slunce
Maixnerová, Anna ; Petrbok, Václav (advisor) ; Nosek, Štěpán (referee)
The thesis deals with a collection of poems named Neviditelné slunce (The Invisible Sun) by a Czech poet Tadeáš Biron (which is a pen name of František Kouřil). The author attempts to identify the fundamental features of Biron's poetry. She covers the recurrent motifs, themes and intertextual references present in Biron's work. The autobiographical elements, manifested in the poems, are also taken into account, on the basis of the author's correspondence with his friend J. Červenka. The thesis tries to provide a more profound understanding of Tadeáš Biron's perception of poetry and his use of linguistic and compositional means and imagery. It also attempts to identify the sources of the poems' effect.
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Flow and pollutant dispersion measurements at model Ústí nad Labem in a wind tunnel
Nosek, Štěpán ; Jaňour, Zbyněk
Using a method of physical modeling, an experiment simulating the flow and dispersion of passive (ethane) and heavy (butane) gas inside and over a part of the city of Ústí nad Labem was successfully carried out in the wind tunnel of the Institute of Thermomechanics CAS in Nový Knín according to the client's (Spolchemie, a.s.) requirements. , as). Three wind directions (W, SW and W) were simulated for one source of leakage and the velocity and concentration fields in the monitored areas were measured for each of them. The ability to compare the evolution of passive and heavy gas concentrations as a function of distance from the source, altitude, and wind direction helped to show that lighter gas disperses to more distant areas than heavier gas, independent of the studied wind direction. The western wind direction was determined to be the most unfavorable for the dispersion of the pollutant towards the city center, and the southwest direction for the dispersion towards the university campus. In the north-westerly wind direction, no instantaneous concentration values were measured in both of these critical areas.
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Investigation of flow within naturally ventilated cattle barn: preliminary results from wind-tunnel experiments
Nosek, Štěpán ; Kluková, Zuzana ; Kellnerová, Radka ; Jakubcová, Michala ; Jaňour, Zbyněk
The mean vector (longitudinal and vertical velocity components) and scalar (turbulence intensity) fields within a scale (1:50) model of naturally ventilated cattle barn were qualitatively compared in this study. These qualitative comparisons clearly show the effect of the simulated atmospheric boundary layer (ABL) and the opening configuration on the flow characteristics within the barn. ABL of moderately rough terrain produces higher velocities at both the inlet and the outlet openings and inside the barn than that ABL of very rough terrain. However, the intensity of the turbulence is more dependent on the configuration of the opening. For instance, although ABL was very rough and therefore more turbulent, lower turbulence intensities were observed for that ABL than for the moderately rough ABL in the case of middle openings.
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