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2123 documents, page 1 of 213

Effective medium approximation of anisotropic lamellar nanogratings based on Fourier factorization

Foldyna, Martin; Ossikovski, Razvigor; De Martino, Antonello; Drevillon, Bernard; Postava, Kamil; Ciprian, Dalibor; Pištora, Jaromír; Watanabe, Koki (2006)
Anisotropic lamellar sub-wavelength gratings (nanogratings) are described by Effective Medium Approximation (EMA). Analytical formulas for effective medium optical parameters of nanogratings from arbitrary anisotropic materials are derived using approximation of zeroorder diffraction mode. The method is based on Rigorous Coupled Wave Analysis (RCWA) combined with proper Fourier factorization method. Good agreement between EMA and the rigorous model is observed, where slig...

Vícevrstvé reologické kluzné spáry v základových konstrukcích

Janulíková, Martina; Stará, Marie (2013)
Kluzné spáry jsou v praxi využívány pro zmírnění účinků smykových napětí v základové spáře. Tato napětí mohou mít svůj původ v podloží (vlivy poddolování) nebo mohou vznikat přímo v konstrukci (smršťování a dotvarování betonu, předpínání), přičemž kluzné spáry lze využít u obou těchto skupin. Pro vytvoření kluzné vrstvy mezi podložím a stavbou jsou ve většině případů využívány asfaltové pásy. Na stavební fakultě na VŠB TUO jsou již řadu let prováděny laboratorní zkoušky pro ově...

Decontamination of a waste dumpside of s.p. DIAMO

Břenek, Roman; Santarius, Andrzej; Hudeček, Vlastimil (2014)
The article indicates possible methods to remedy environmental damage in the Ostramo Lagoon locality. Authors deal with the description of locality, composition of waste and description of current work performed in decontamination of this locality. The article describes also the technical solution of decontamination of the territory and recommendations for possible future use of the decontaminated areas Web of Science 19 1 21 15

Zpracování dlouhodobých EEG záznamů

Rieger, J.; Lhotská, Lenka; Krajča, V. (2005)
This paper presents results of development of long-term EEG records analysis software and its application to real world coma signals. Due to the nature of coma signals, presented methods are also suitable for other types of signals (sleep and neonatal EEG etc.). Digital form of EEG signals makes it possible to use methods of quantitative EEG processing, which are not available in paper form. Quantitative EEG processing techniques include simple statistical methods, filtration, seg...

Structural changes of single crystals of low-alloyed tungsten alloys at thermal cycling

Skotnicová, Kateřina; Kirillova, Valentina M.; Drápala, Jaromír; Burchanov, Gennadij S. (2012)
Parameters of sub-structure of single crystals of low-alloyed tungsten alloys from the system W-Nb and W-Mo were investigated after thermal cycling in argon protective atmosphere. The mode of thermal cycling of tungsten based single crystals consisted of heating to the temperature of 2500 °C and of cooling to the temperature of 500 °C with dwell of 3.5 s at those temperature. It was established with use of X-ray topography, OLM and SEM, that after 100 thermocycles dislocations were re-distrib...

Komplexné hodnotenie kvality elektrickej energie v elektrických sieťach

Altus, Juraj; Novák, Milan; Otčenášová, Alena; Pokorný, Michal (2003)

Aspects of classification of energy sources in terms of their position in the sector of the economy

Dirner, Vojtech; Pavelek, Zdeněk (2016)
The paper deals with the study of problems relating to classification of energy sources, in particular from the perspective of their position in covering of energy needs of country or economic sector. Classification of energy sources is currently often viewed as a set of fixed categories, but taking a closer look and making a deeper analysis can defined a number of criteria that might determine the final importance and position of resources in the context of complex connections. The compositi...

Overenie vlastností MMPP a IPP ATM bunkových zdrojov

Žabka, Ján (2007)
The paper is aimed to using aided software tool designed by . NET Framework. By means this one is possible to gain statistical file for next processing by software tool STATISTICA. Graphical results ilustrate the influence of cell flow source and its parameters on stochastic variable describing intercell distance. There are two types of cell flow source evaluated, MMPP (Markov modulated poisson process) and IPP (Interrupted poisson process).