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Photoacoustic and optical properties of zinc-stannate thin films
(Trans Tech Publications Ltd, Durnten-Zurich, 2006)
Thin films of single-phase zinc-stannate (Zn2SnO4) were grown by rf magnetron sputtering onto glass substrates. Transmission in the visible range was measured allowing determination of the energy gap and thickness of ...
Infrared properties of sintered alpha-MnSe
(Carl Hanser Verlag, Munich, 2006)
Far-infrared reflection spectra of sintered alpha-MnSe were measured at room temperature. The measured spectrum had one pronounced peak in accordance with literature data and group theory estimation and one smaller peak ...
In vitro multiplication of willow gentian (Gentiana asclepiadea L.) and the production of gentiopicrine and mangiferin
(Phyton - Annales Rei Botanicae, 2006)
A protocol for in vitro propagation of Gentiana asclepiadea was developed. The best multiplication rate was obtained with woody plant medium (WPM) supplemented with 8.9 mu M BAP (6-benzylaminopurine) and 1.1 mu M IAA ...
Electrical characterization of the grain-boundary region of SnO2 varistors
(Trans Tech Publications Ltd, 2006)
The effect of Co, Cr and Nb on the electrical properties of the grain boundaries of SnO2-based varistors was investigated. The powders were prepared by the method of evaporation and decomposition of solutions and suspensions. ...
The influence of tribophysical activation on non-isothermal sintering of BaTiO3 ceramics
(Trans Tech Publications Ltd, Durnten-Zurich, 2006)
In this paper the influence of tribophysical activation on non-isothermal sintering of barium titanate has been investigated. BaTiO3 Powders were tribophysically activated in a planetary ball mill for 0, 60 and 120 min., ...
Structural - Phase transformations in bentonite after NaOH-BaCl2 treatment in conditions of water deficiency
(Silicates Industriels, 2006)
The methods of X-ray diffraction, FTIR-spectroscopy, electron microscopy, X-ray microanalysis and others were used for investigation of structural phase reorganization, which occurs in a montmorillonite-gypsum mixture ...
Component analysis of the fluorescence spectra of a lignin model compound
(Elsevier Science Sa, Lausanne, 2006)
In order to test whether lignin fluorescence originates from discrete fluorophores, fluorescence emission spectra of the lignin model dehydrogenative polymer (DHP) were analyzed by the band deconvolution method and ...