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National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Organometallic Compounds in Chemistry Education
 Houser, František
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Organometallic Compounds in Chemistry Education
 Houser, František
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Organometallic Compounds in Chemistry Education
 Houser, František ; Klímová, Helena (advisor) ; Svoboda, Lubomír (referee) ; Kolář, Karel (referee)
The thesis is devoted to organometallic chemistry teaching problematics at Czech secondary schools. In this thesis it is analyzed what space in the schooling is given this theme by educational programs. Furthermore, the thesis are in terms of the theme of organometallic compounds analyzed secondary school textbooks commonly used chemical education, and there is estimated interest of teachers for the newly prepared materials on this topic as well. As a reaction to the conclusions of the analyzes was prepared explanatory text on the topic of organometallic compounds intended for teachers who can use it for their own learning and to prepare their lessons as well. The second main output of this work is a set of test tasks relating to the created explanatory text of organometallic compounds. These questions are not only intended for testing mastering the topic of organometallic compounds by pupils, but also serves as an mastery-level proposal of the topic that students especially in grammar schools and secondary vocational schools should achieve. Explanatory text and a set of test tasks were verified by teachers teaching chemistry through direct interview method and then there were incorporated comments emerged in the interviews into them. Powered by TCPDF (www.tcpdf.org)
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Plasma discharge generated by surfatron with frequency 2,45 GHz
 HOUSER, František
This diploma thesis deals mainly with utilization of plasma in technological aplications. The introductory part is apllied to the theoretical description of plasma generated by the surfatron. This launcher works with the frequency of 2,45 GHz and it is able to excite the surface wave, that sustains plasma column in a quartz tube. Plasma generated by surfatron was used for modification of surface properties of polyethylen to change its surface energy. By changing of surface energy it was reached of higher hydrophilicity. Plasma generated by surfatron was diagnosed in detail during experiments in a continual regime as well as in a pulse one with a help of a single {--} probe and a double {--} probe Langmuir measurement. In this diploma thesis there is discussed influence of pressure, power and other experimental options.
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