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With the advent of System-on-Chip (SoC), intense research efforts are being carried out in order to find efficient practical solutions for testing deeply embedded, mixed-signal cores. Due to restricted access, a built-in self-test (BIST) of mixed-signal cores is in many cases a preferred alternative to a conventional test using external …

The thesis presents experimental studies of colloidal interactions and novel colloidal structures in confined nematic liquid crystal using optical tweezers. Liquid crystal colloids are a novel class of composite materials with well-controlled periodic structures in the nanometer and micrometer ranges. Moreover, they also posses novel mechanical, optical and rheological properties, …

Deuteron nuclear magnetic resonance was used to study the phase separation behavior of photoisomerizable liquid crystal diheptylazobenzene (7AB). Under UV illumination, the elongated trans molecules are converted to boomerang shaped cis form, creating a binary trans-7AB and cis-7AB mixture. It was demonstrated that the concentration of both components can be …

Natural killer (NK) cells and cytotoxic T lymphocytes (CTLs) recognize virus-infected or malignant transformed cells and destroy them through two independent mechanisms. Apoptotic target-cell death can be triggered by the engagement of death-receptors or by the release of cytotoxic granules. Cytotoxic granules gather at the site of contact between the …

Selenium (Se) has been demonstrated to be an essential trace element for maintenance of animal and human health. Se is incorporated into proteins to make selenoproteins, which are important antioxidant enzymes. The antioxidant properties of selenoproteins help to prevent cellular damage caused by radicals. Radicals are natural by-products of oxygen …

A starting powder with the nominal composition 0.65Pb(Mg1/3Nb2/3)O3–0.35PbTiO3 (0.65PMN–0.35PT), which corresponds to the morphotropic phase boundary (MPB) composition, was prepared by mechanochemical activation followed by attritor milling and low-temperature calcination at 700°C. It had a narrow particle size distribution with the median particle size equal to 0.3 μm. From the …

Simulation models are a widely used tool for modelling and simulating systems for which it is hard to obtain real data. However, the simulation models are usually complex and it is not an easy task to induce new knowledge and find relationships and dependencies among different parts (parameters, processes, modules) …

he thesis describes a study of aluminum nitride (AlN) powder hydrolysis in the temperature range between 5 °C and 90 °C. The analysis of the temperature dependence of the course of the hydrolysis and the reaction kinetics, along with a mechanistic model set up for the hydrolysis reactions, gives a …

Vascular grafts made of polyethyleneterephthalate (PET) polymers have successfully replaced large-diameter blood vessels, but the long-term performance of small-diameter (< 6 mm) vascular grafts is still disappointing. The main problem is insufficient biocompatibility of polymer surface with blood, which causes complications after implementation; such as thrombosis or restenosis. These complications …

The toxicity, biological availability and mobility of aluminium (Al) depend on its chemical form. In order to understand toxicity and transport of Al in human body it is important to identify and quantify Al species present in human serum. This led to the development of sensitive and selective analytical methods …