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Semináře

Pondělí, 23.04.2018 10:00

R. F. Mamin (Zavoisky Physical-Technical Institute of FIC KazanSC RAS, Sibirskii tract 10/7, Kazan, Russia)

Úterý, 24.04.2018 13:00

Dr. Philippe Veber (Institut Lumière Matière, Université Claude Bernard Lyon 1, France)

Úterý, 24.04.2018 15:00

Hans-Joachim Freund (Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin)

Understanding catalysis, and in particular heterogeneous catalysis, has been based on the investigation of model systems. The enormous success of metal single crystal model surface chemistry, pioneered by physical chemists, is an outstanding example. Increasing the complexity of the models towards supported nano particles, resembling a real disperse metal catalyst, allows one to catch in the model some of the important aspects that cannot be covered by single crystals alone. One of the more important one is the support particle interface. We have developed strategies to prepare such model...

Čtvrtek, 26.04.2018 10:30

Mgr. Martin Vondráček (Oddělení analýzy funkčních materiálů)

V rámci výukového semináře budou prezentovány principy a základní aspekty fotoelektronové spektroskopie a mikroskopie pevných látek. Možnosti využití analytického zařízení NanoESCA a interpretace výsledků měření budou předvedeny na praktických příkladech.

Čtvrtek, 26.04.2018 14:00

Ruggero Vaglio (Physics Department of the University of Naples Federico II and CNR-SPIN, Italy)

Abstract: CERN has recently started a Design Study for a possible next-generation high-energy hadron-hadron collider (Future Circular Collider – FCC-hh). The FCC-hh calls for an unprecedented center-of-mass collision energy of 100 TeV, colliding proton beams of 50 TeV steered in a 100-km circumference tunnel by 16 T superconducting magnets. The beams emit synchrotron radiation at high power which, to optimize cryogenic efficiency, is absorbed by a beam-facing copper-coated screen held at 50 K. The surface impedance of this screen has a strong impact on the beam, and copper...

Čtvrtek, 26.04.2018 16:00

Jan Pokorný, Jiří Pokorný (Fyzikální ústav AV ČR, oddělení dielektrik)

Abstract: Cell-to-cell communication is a prerequisite in multicellular organisms. Coordinated interaction is provided by different mechanisms running in parallel. Just over a decade ago, nanotubular cell-to-cell connections have been discovered, termed tunnelling nanotubes (TNTs) or membrane nanotubes [1, 2]. The shape of TNTs resembles circular tubes with a typical diameter of 50 – 200 nm and a length of 10 –70 μm which can extend up to 1 mm. TNTs can transport ions, intercellular vesicles, mitochondria, and various cargoes of microparticles, and could mediate electromagnetic signalling...