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Properties of cement composites with fiber reinforcement
Jankech, Filip ; Sitek,, Libor (referee) ; Bodnárová, Lenka (advisor)
This thesis summarizes the knowledge of the possibility of using organic fibres as dispersed reinforcement into cement composites. It is concretely a summary of knowledge about the types and properties of synthetic and cellulosic fibres, their influence on the properties of fresh and hardened cement composite and lastly a description of the fire resistance of cement composites and the effect of organic fibres on the action of those composites at high temperatures and in the presence of fire. The experimental part is supposed to verify the effect of the cellulose fibres on increasing the durability of the cement composite at high temperatures.
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The possibilities of using nanoparticles of various metals as the markers for immunocytochemical labelling in field emission scanning electron microscopy
EIBLOVÁ, Veronika
Nowadays, electron microscopy is a widespread method used in many biological branches like medicine, physical science, mikrobiology or material technology. Scanning electron microscope is a type of an electron microscope that shows the sample surface by scanning it with a high-energy beam of electrons in a raster scan pattern. The signal of electrons reveals information about the sample such as morphology, chemical composition and structure and materials. Gold nanoparticles are widely used as a marker for immunolabeling in these days. The main point of this research was to find other nanoparticles, which can be used for multiple immunolabeling. The main task of this study is to conjugate these particles with atibodies, to use them for immunolocalisation on the convenient biological sample and to observe it in FESEM JEOL JSM-7401F.
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The first experience with a low voltage electron microscope
Nebesářová, Jana
The low voltage electron microscope LV EM 5 manufactured by Delong Instruments is described and methods of preparation of biological specimens for the observation in this microscope are briefly evaluated. LV EM 5 is a unique apparatus that could replace in medical and biological research laboratories high volatage transmission electron microscopes.
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