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National Repository of Grey Literature 4 records found  Search took 0.01 seconds. 
Sensoric Properties of Organic Materials
 Tmejová, Kateřina ; Zmeškal, Oldřich (referee) ; Kratochvílová, Irena (referee) ; Nešpůrek, Stanislav (advisor)
The first part of the work is aimed to the study of changes of electrical properties of substituted phthalocyanines under the influence of humidity. Thin films were prepared by spin coating technique. During the influenece of humidity electrical conductivity increases. Sorption and desorption and the changes in electrical properties under the repated humidity exposure were investigated as well. Impedance spectroscopy was used for the studies. The second part of this work consists of optical studies and changes of optical parametrsunder the influence of different alcohols (methanol, ethanol, 2-propanol) exposures. The investigated samples were prepared by vacuum evaporation a glow-discharge-induced sublimation. The changes of optical reflectances of the films upon exposure to alcoholvapour-containg atmospheres were studied as a function of alcohol concetration and exposure time.
Detailed record
The study of chemical ecology in necrophagous insects: a summary of methodology and technical approaches.
 Száková, Barbora ; Šípek, Petr (advisor) ; Jakubec, Pavel (referee)
Carrion insects have irreplaceable role in nutrient cycle. They are able to locate a carcass within a few minutes and colonize it. Insect's orientation is enabled mainly by smell, primary sensory receptors are placed in antennae and maxillary palps. Perception research of chemical signals is done by biotests, which are testing behavioral responses, or by methods measuring physiological response such as electroantennography (EAG). To analyze volatile organic compounds are used gas chromatography and mass spectrometry (GC-MS).
Detailed record
The study of chemical ecology in necrophagous insects: a summary of methodology and technical approaches.
 Száková, Barbora ; Šípek, Petr (advisor) ; Jakubec, Pavel (referee)
Carrion insects have irreplaceable role in nutrient cycle. They are able to locate a carcass within a few minutes and colonize it. Insect's orientation is enabled mainly by smell, primary sensory receptors are placed in antennae and maxillary palps. Perception research of chemical signals is done by biotests, which are testing behavioral responses, or by methods measuring physiological response such as electroantennography (EAG). To analyze volatile organic compounds are used gas chromatography and mass spectrometry (GC-MS).
Detailed record
Sensoric Properties of Organic Materials
 Tmejová, Kateřina ; Zmeškal, Oldřich (referee) ; Kratochvílová, Irena (referee) ; Nešpůrek, Stanislav (advisor)
The first part of the work is aimed to the study of changes of electrical properties of substituted phthalocyanines under the influence of humidity. Thin films were prepared by spin coating technique. During the influenece of humidity electrical conductivity increases. Sorption and desorption and the changes in electrical properties under the repated humidity exposure were investigated as well. Impedance spectroscopy was used for the studies. The second part of this work consists of optical studies and changes of optical parametrsunder the influence of different alcohols (methanol, ethanol, 2-propanol) exposures. The investigated samples were prepared by vacuum evaporation a glow-discharge-induced sublimation. The changes of optical reflectances of the films upon exposure to alcoholvapour-containg atmospheres were studied as a function of alcohol concetration and exposure time.
Detailed record

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