National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Interethnic Relations in the 1980s' Croatia shown on the case of Daruvar region.
Petrov, Michal ; Vojtěchovský, Ondřej (advisor) ; Moskovič, Boris (referee)
This bachelor thesis analyses interethnic relations in the Daruvar region in Croatia during the 1980s. Daruvar and its surrounding areas were inhabited by multiple nationalities, Croats and Serbs being the two majority ethnic groups among which lived a considerable Czech minority. Research is mainly based on oral history, local newspapers (mainly a minority weekly Jednota). Thesis will analyze the position of the Czech minority in a decade which preceded the violent break-up of the Yugoslav federation. Keywords Yugoslavia, Croatia, Daruvar, Czechs in Croatia, interethnic relations, socialist Yugoslavia in the 1980s, oral history
SMV-2018-18: Scanning electron microscopy of biochars and soil mixtures
Petrov, Michal ; Vaškovicová, Naděžda ; Krzyžánek, Vladislav
The structure of the surface of selected Biochars (the dried charred pyrogenic residues of organic matter) and comminute soil mixture was analysed by high-resolution scanning electron microscope. The level of interaction among soil particles with inner face and surface structures of biochar was estimated.
Utilization of sampling filters from the Kresin atmospheric station for further analysis
Vítková, Gabriela ; Kahoun, D. ; Strnadová, G. ; Hanuš, Vlastimil ; Petrov, M. ; Tříska, Jan ; Holoubek, Ivan
The Kresin At Pacov Atmospheric Station serves as a monitoring point for the occurrence and remote transmission of greenhouse gases, selected atmospheric pollutants and basic meteorological characteristics. The determination of the GHG concentration (CO2, CH4, N2O, CO) is carried out in air continuously sampled at 10, 50, 125 and 250 m heights. The analysis itself takes place at the foot of a high mast where the air is drawn through the tubes of Synflex 1300. lines and individual analyzers are protected from mechanical pollution by input filters that are changed at regular intervals as part of the routine maintenance of the device or earlier when unexpected clogging occurs. Analyzing these filters can provide additional information about the surrounding area. These are stainless filters (Swagelog „T“ filter) with a porosity of 40 μm. A sampling head is provided in front of them to protect them from rough dirt and water drops. The volume flow of the scrubbed air is about 15 l / min, the exchange interval is usually 3 months. The need to replace these filters has increased in recent months as the flow rate on the sampling lines has fallen. The question arises as to how long the filters remain fully passable and how well they serve their purpose without burdening the sampling system and lowering the measurement quality. The results of analyzes of polycyclic aromatic hydrocarbons (PAHs) carried out on filters at the Institute of Chemistry and Biochemistry of the Faculty of Science of South Bohemian University as well as images from the Scanning Electron Microscope (SEM) could be helpful in answering this question. On the basis of the preliminary results, we propose a more extensive study for the use of this waste material for the analysis of solid particles from the atmosphere in the surroundings of AS Křešín near Pacov and the optimization of the QA / QC sampling systems of greenhouse gas analyzers.

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2 Petrov, Michal
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