Quantum Dots — Characterization, Preparation and Usage in Biological Systems

The use of fluorescent nanoparticles as probes for bioanalytical applications is a highly promising technique because fluorescence-based techniques are very sensitive. Quantum dots (QDs) seem to show the greatest promise as labels for tagging and imaging in biological systems owing to their impressive photostability, which allow long-term observations of biomolecules. The usage of QDs in practical applications has started only recently, therefore, the research on QDs is extremely important in order to provide safe and effective biosensing materials for medicine. This review reports on the recent methods for the preparation of quantum dots, their physical and chemical properties, surface modification as well as on some interesting examples of their experimental use

Dynamicke ucinky tramvaji na budovu v Krizovnicke ul. c. 3.

Available from STL Prague, CZ / NTK - National Technical LibrarySIGLECZCzech Republi

Dynamicke ucinky metra na ocelovy rost v tubusu Nuselskeho mostu.

Available from STL Prague, CZ / NTK - National Technical LibrarySIGLECZCzech Republi

Assessment of structural condition of steel bridge in Brandýs nad Orlicí

This paper deals with structural condition assessment of historical steel through arch bridge in Brandýs nad Orlicí. Structure was dynamically tested to obtain mode shapes and eigenfrequencies on non-loaded structure and to estimate logarithmic damping decrement after traffic loading. Material properties were verified. Calculation model was created to validate its statical and dynamical behaviour. Article focuses on comparison of calculated results and properties of real structure upon excitation

Feasibility Study of Action Railway Track Support.

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Zprava o mereni vibraci absorberu odsireni v elektrarne Detmarovice.

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Experimentalni overovani vypocetnich modelu a funkcni spolehlivosti stavebnich konstrukci.

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Phase transitions of Cu3+xSi observed by temperature-dependent x-ray powder diffraction

International audiencePhases in the system Cu3+xSi were analyzed by temperature-dependent x-ray powder diffraction and differential scanning calorimetry on samples with nominal composition Cu74Si26 and Cu78Si22 in the temperature range between 30 degrees C and 700 degrees C. Contrary to previous works, which report three phases in the system, we identified six distinct phases, labeled, in order of increasing temperature, eta"', eta", eta(3) eta(2), eta(1),. All these phases can be indexed with a similar basic unit cell. However, each phase has a different superstructure or modulation vectors