National Repository of Grey Literature 4 records found  Search took 0.01 seconds. 
Selection and structuring of the chemistry curriculum at the secondary school level - elements of the 1st and 17th group of the periodic table of elements
Vlčková, Tereza ; Čtrnáctová, Hana (advisor) ; Stratilová Urválková, Eva (referee)
The diploma thesis deals with the selection and structuring of the curriculum of the selected groups of elements in terms of inorganic chemistry, to be more specific the elements of the 1st and 17th group at the grammar school level. The theoretical part of the thesis presents the characteristics of the educational content and curriculum, the possibilities of graphical representation of the curriculum, current curricular documents and used chemistry textbooks at grammar schools. At the end of the theoretical part, the qualitative research method is discussed, namely a focus group. The practical part of the thesis contains modified schemes of the arrangement of the curriculum of the elements of the 1st and 17th group from the 1980s when a deductive approach to the content and arrangement of the chemistry curriculum was applied for the first time. To find out the current state, an analysis of RVP G and selected Czech and foreign textbooks was done. On their basis diagrams representing the content and structure of the curriculum of the elements of the 1st and 17th group were created. It proves that the deductive approach to the chemistry curriculum, which is problematic for pupils, is predominant even today. Therefore, a proposal for selecting and structuring of the curriculum of the selected PSP...
Alkali Metals as Promoters in Co-Mn-Al Mixed Oxide for N2O Decomposition
Obalová, L. ; Karásková, K. ; Wach, A. ; Kustrowski, P. ; Michalik, S. ; Jirátová, Květa
The aim of presented contribution is evaluated of alkali metals promoter effect in Co-Mn-Al mixed oxide (molar ratio Co:Mn:Al=4:1:1) one the low temperature N2O catalytic decomposition.
Fulltext: content.csg - Download fulltextPDF
Plný tet: SKMBT_C22012110811242 - Download fulltextPDF
Vliv alkalických kovů v kalcinovaném Co-Mn-Al LDH na katalytický rozklad N2O.
Obalová, L. ; Jirátová, Květa ; Kovanda, F. ; Galejová, K. ; Pacultová, K.
The effect of various amounts of potassium in Co-Mn-Al spinel catalyst on N2O decompositon was examined. Different catalytic performance of samples with different amount of K in th epresence of H2O and NOx could be related to changes in acidity and basicity of catalyst surface.
Release and Partition of Selected Alkali Metals and Heavy Metals in Pressurized Substoichiometric Combustion of Coals
Čermák, Jiří ; Svoboda, Karel ; Pohořelý, Michael
In our contribution the comparison of pressurized bed substoichiometric combustion of three various kinds of subbituminous coal is presented.

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