National Repository of Grey Literature 97 records found  beginprevious88 - 97  jump to record: Search took 0.01 seconds. 
Polyaniline: conducting polymer
Stejskal, Jaroslav
The contribution presents the fundamental properties of conducting polymers, which are illustrated on an example of polyaniline. After historical background, the preparation of polyaniline is described. The attention has been paid to the nanostructures produced by conducting polymers, viz. to polyaniline nanotubes. Finally, the applications of conducting polymers are discussed.
Optical properties of the GaN on sapphire
Skalský, Miroslav ; Janta, Jiří ; Čtyroký, Jiří ; Stejskal, J. ; Hüttel, I.
The method of mode spectroscopy was used to measure optical properties of epitaxial layers of gallium nitride (GaN) deposited onto the sapphire substrate. The results of the measurement of the layer thickness, refractive indices, and the attenuation of guided modes at the wavelengths of 632.8 nm and 781 nm are presented. From experimental values of attenuation of different guided modes, the contributions of bulk absorption and scattering at the interfaces of the layer to the total optical loss in the waveguide are determined.
Separation of peptides by capillary zone electrophoresis with regulation of electroosmotic flow by radial electric field
Kašička, Václav ; Prusík, Zdeněk ; Sázelová, Petra ; Koval, Dušan ; Barth, Tomislav ; Brynda, Eduard ; Stejskal, Jaroslav
A new way of control of efficiency, resolution and speed of peptide separations by capillary zone electrophoresis based on the regulation of electroosmotic flow by radial electric field has been developed.
FTIR spectroscopic study of the protonation of conducting polymer with energetic compound
Trchová, M. ; Sapurina, I. ; Stejskal, Jaroslav
Preparation of materials combining the features of conducting polymers and energetic compounds is demonstrated. The FTIR spectra are used to discuss changes in the molecular structure of product of protonation reaction between two non-conducting compounds, polyaniline base and 3-nitro-1,2,4-triazol-5-one.
FTIR spectroscopic study of the protonation of conducting polymer with energetic compound
Trchová, M. ; Sapurina, I. ; Stejskal, Jaroslav
The preparation of materials combining the features of conducting polymers and energetic compounds is demonstrated. The FTIR spectra are used to discuss changes in the molecular structure of product of protonation reaction between two non-conducting coumpounds, polyaniline (PANI) base and 3-nitro-1,2,4-triazol-5-one (NTO). The progress of protonat ion of PANI with NTO was assessed by the changes in conductivity.
Spectroscopy of conjugated polymers:polyaniline
Trchová, M. ; Zemek, Josef ; Stejskal, Jaroslav
The structure and properties of conducting polymers can be studied by various spectroscopic techniques. The infrared and photoelectron spectroscopy have been used to investigate the doping process and structural transitions in polyaniline.
Elektrorheologické vlastnosti siliky modifikované polyanilinem
Pavlínek, V. ; Lengálová, A. ; Sáha, P. ; Quadrat, Otakar ; Stejskal, Jaroslav
Electrorheological properties of silica suspensions particles coated with polyaniline in silicone oil have been investigated. The role of the interfacial polyarization of particles is emphasized.
Analysis of Exchange Rate Regimes under Conditions of Economic Transition
Stejskal, Jan ; Taušer, Josef (advisor) ; Plchová, Božena (referee)
This paper concentrates on the analysis of currency crises in economies undergoing economic transition. The papaer begins with a brief introduction of contemporary exchnage rate regimes, which is followed by an analysis of the history of the World monetary system. The following chapters concentrate on the analysis of the monetary development in selected transitional economies. In case of the the first one, The Czech Republic, the analysis includes the period from the times of the centrally planed economy, through the initial transformation and the currency crisis of 1997 to the present day. In case of the other countries included in this paper, Latvia, Estonia, Lithuania and Icelnad, the analysis concentrates on the current critical development in these economies. Apart from the analysis of the selected currency crises, the objective of this paper is to draw conclusions relevant to the future development of currency policies in the transitional economies.
Comparison of Fundamental Exchange Rate Regimes
Stejskal, Jan ; Taušer, Josef (advisor) ; Cibulková, Iveta (referee)
Práce se zabývá členěním kursových režimů a problémy s tím spojenými, historickým vývojem kursových režimů a současným stavem v této oblasti. V další části jsou představeny některé vlastnosti a teorie spojené s kursovými režimy a zmíněna problematika přechodů mezi kursovými režimy. Následně jsou představeny empirické studie zabývající se kursovými režimy s důrazem na studie zabývající se jejich vlivem na inflaci a hospodářský růst. Další studie hodnotí vliv dalších ekonomických a politických veličin na volbu kursového režimu a poslední studie se zabývá potvrzením nebo vyvrácením tzv. bipolární teorie. Závěrem jsou vyhodnoceny často velmi různorodé výsledky těchto studií.

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