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Preparation of humic hydrogels with incorporated metal ions
Palková, Michaela ; Kislinger, Jiří (referee) ; Sedláček, Petr (advisor)
This bachelor’s thesis deals with the study of interaction of cupric ions as a model heavy metal with humic-substances in a hydrogel form. Main objective of the work was to suggest and optimize methods of preparing hydrogel forms of humic acids with the cupric ions and to study the influence of the ions on the properties of the prepared hydrogels while using analytical and physic-chemical methods. The investigated parameters for the characterization of prepared hydrogels were inner pH of the hydrogels and the pH of the solution at different stages of preparation, the quantity of copper ions in the hydrogels, the possibility of extraction and characterization of the structure of resulting hydrogel forms. The experimental results have conformed the expected influence of metal contact in the hydrogel forms of humic substances
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Vlivy působící na behaviorální projevy krav plemene highland na pastvě ve vybraném chovu
Pálková, Michaela
This bachelor thesis deals with the effects that affect the behaviour of highland cows on pasture. Observations were made on an organic farm in Lípa u Zlína, which is situated in Zlín region in the area od Lípa nad Dřevnicí, in summer and winter 2015. The observed behaviour of cattle was: standing, physical aktivity, food and water intake and lying focused on laterality of individuals. By this monitoring, evaluation and subsequent graphical statistical methods was found a slight effect of the season on the symptoms above, the mahor diference was between standing and lying. On averadge, the animals spent most of their time by food intake, lying, standing less by physical activity and water intake.
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Preparation of humic hydrogels with incorporated metal ions
Palková, Michaela ; Kislinger, Jiří (referee) ; Sedláček, Petr (advisor)
This bachelor’s thesis deals with the study of interaction of cupric ions as a model heavy metal with humic-substances in a hydrogel form. Main objective of the work was to suggest and optimize methods of preparing hydrogel forms of humic acids with the cupric ions and to study the influence of the ions on the properties of the prepared hydrogels while using analytical and physic-chemical methods. The investigated parameters for the characterization of prepared hydrogels were inner pH of the hydrogels and the pH of the solution at different stages of preparation, the quantity of copper ions in the hydrogels, the possibility of extraction and characterization of the structure of resulting hydrogel forms. The experimental results have conformed the expected influence of metal contact in the hydrogel forms of humic substances
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