|
|
Determination of surfactants in waste waters
Švec, Pavel ; Čáslavský, Josef (referee) ; Vávrová, Milada (advisor)
Surfactants belong to surface-active compounds that have ability to restrain the surface tension; this ability is exploited to eliminate impurities. This study is focused on determination of surfactants in waste water to which these compounds can be transported from various cleaning and washing articles. In theoretical part are listed basic classifications of surfactants, their properties and requests of Czech legislative for their content in waste water. Furthermore here are described chosen analytical procedures for determination of anion-active, cation-active and non-ionic surfactants in waste water. The conclusion of the work is evaluation of measured results of surfactants concentration in inflow and outflow of waste water from waste-treatment plant in University of Veterinary and Pharmaceutical Sciences Brno and waste water from neutralizating station in FCH BUT. To determination of anionic surfactants were used two methods, arbitration method with usage of methylene blue and mobile analytics method which is based on chemical reaction between target compound and chemical agent. This reaction leads to formation of coloured compound able to spectrofotometric determination.
|
|
|
Evaluation of the data and methods of Land use, Land-use change and Forestry (LULUCF)
Langer, František ; Štych, Přemysl (advisor) ; Švec, Pavel (referee)
The hereby-submitted bachelor's thesis addresses the topic of reporting of land use under the Intergovernmental Panel on Climate change (IPCC), so-called Land Use, Land-Use Change And Forestry (LULUCF). Under LULUCF, the state and development of surface areas in the following categories are inventoried and reported: Forest Land, Cropland, Grassland, Wetlands, Settlements and Other Land. In the Czech Republic, LULUCF is reported on the basis of cadastral data. The aim of this thesis was to evaluate the accuracy of cadastral data - attributes of land plots and the way of land plot - for the purposes of LULUCF reporting on the area of Petříkov cadastral territory. In-situ survey, orthophoto and the map of RM 10 layer were used for the research. As part of this work, a table was created, according to which the specific type and method of land use can be converted from cadastral data into LULUCF categories. Key words: land cover, land use, LULUCF, Petříkov, spatial data
|
|
|
Image of the Thirty-Years-War in Czechoslovak and Czech cinema and television
Švec, Pavel ; Vlnas, Vít (advisor) ; Chalupová, Helena (referee)
The aim of the task The image of the Thirty Years' War in Czechoslovak and Czech cinema and television is focused on certain films that are set between the years 1618 and 1648. The task is to present the style of processing of the historical reality shown in these films as well as to present the film impact on society before and after the year 1989. Another task is to show the meaning and reason of creating such films in certain time period. This paper is based on complementation method which combines various academic film studies, various news film reviews, historical context analysis of years 1618-1648 and film materials. KEY WORDS Czechoslovak filmography, Czech filmography, Thirty Years' War, 1618-1648
|
|
|
Vliv akumulace manganu na vybrané rostliny
Švec, Pavel
In this work we investigated the effect of high doses on the agriculture important crop plants (Brassica napus, Hordeum vulgare, Zea mays), herb Matricaria chamomilla and freshwater microalgae Scenedesmus quadricauda. In particularly, we studied the growth rate, activity of antioxidant enzymes, and the amount of some secondary metabolites. We have found that high doses of manganese negatively influenced the growth, which resulted in a reduction of biomass which we observed in all studied groups, except algae. Manganese (Mn) is accumulated in roots and part of such absorbed Mn is transported to the shoot system. In the plants, the distribution of Mn is more balanced compared to copper and cadmium. We observed changes in the content of aliphatic organic acids, and the total amount of thiols. Higher activity was determined in several antioxidant enzymes according to the kind of plant. Abundance of manganese has been considered more toxic for the Brassica rapa than for the ontogenetic older Matricaria chamomilla, where we indicated a higher tolerance to the high concentration of Mn. We also found that the nitrogen oxide showed the positive effect on the toxicity of Mn and improved the plant viability. This improvement was reflected by decrease in uptake of Mn ions, decrease of ROS production and lipid peroxidation and also better growth parameters in the tested plants. The bioavailability of the Mn was influenced by pH however the uptake of Mn was not affected. We also found out that competition between Mn2+ and Ca2+ occur in the both land plants and also freshwater microalgae Scenedesmus quadricauda.
|
|
|
Determination of surfactants in waste waters
Švec, Pavel ; Čáslavský, Josef (referee) ; Vávrová, Milada (advisor)
Surfactants belong to surface-active compounds that have ability to restrain the surface tension; this ability is exploited to eliminate impurities. This study is focused on determination of surfactants in waste water to which these compounds can be transported from various cleaning and washing articles. In theoretical part are listed basic classifications of surfactants, their properties and requests of Czech legislative for their content in waste water. Furthermore here are described chosen analytical procedures for determination of anion-active, cation-active and non-ionic surfactants in waste water. The conclusion of the work is evaluation of measured results of surfactants concentration in inflow and outflow of waste water from waste-treatment plant in University of Veterinary and Pharmaceutical Sciences Brno and waste water from neutralizating station in FCH BUT. To determination of anionic surfactants were used two methods, arbitration method with usage of methylene blue and mobile analytics method which is based on chemical reaction between target compound and chemical agent. This reaction leads to formation of coloured compound able to spectrofotometric determination.
|
|
| |
|
|
Use of social networking sites to support virtual teamwork in organization
Švec, Pavel ; Kunstová, Renáta (advisor) ; Benáčanová, Helena (referee)
The thesis is focused on utilization of social networking sites as a tool for virtual team collaboration support. The first goal is to identify critical success factors of virtual teamwork, which are currently not supported by groupware tools, based on description of virtual team characteristics and processes. Identified critical success factors represent the basis for the completion of next goal, which is to describe aspects of social networking sites, which are able to support the identified critical success factors. That leads to the main goal of the thesis, which consists of two main parts. First part is the analysis of social networking sites aspects influence on virtual teamwork critical success factors. The second part is the practical solution of utilization of social networking sites for virtual teamwork support. Final solution includes all social networking sites implementation phases starting from choosing the product, implementation process and ending with setting of team processes and utilization principles. Social networking sites aspects description is based on current enterprise information systems trends and the final solution results from the analysis and synthesis of findings from both previous thesis parts. The main contribution of the thesis is the solution of social networking sites utilization inside the organization and providing of practical instructions for implementation of social networking sites in order to support virtual teamwork.
|
|
| |
|
|
Implementation of closures in object-oriented programming languages
Švec, Pavel ; Pavlíčková, Jarmila (advisor) ; Pecinovský, Rudolf (referee)
Tato práce si dává za cíl vysvětlit a shrnout podstatu closures v objektových programovacích jazycích a to z několika hledisek. Těmito hledisky jsou historický vývoj, funkcionalita, syntaxe a komplexnost. Hlavním přínosem této práce je pokus o komplexní shrnutí tématiky napříč nejdůležitějšími objektovými programovacími jazyky se současným porovnáním těchto implementací. Dalším přínosem je také aktuálnost popisovaných implementací, zahrnující aktuální verze implementací včetně implementací oficiálně ještě nevydaných. Práce se více zabývá teoretickými aspekty tématiky s krátkými a názornými praktickými ukázkami. Struktura práce je rozdělena na dva hlavní bloky. V prvním se věnuje jednotlivým implementacím samostatně. Ve druhém bloku jsou tyto implementace porovnávány mezi sebou podle nastavených kritérií.
|
|
| |
guest ::
RSS feed.