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Radioisotope method of compound flow analysis
Petryka, L. ; Zych, M. ; Hanus, R. ; Sobota, J. ; Vlasák, Pavel ; Malczewska, B.
The paper presents gamma radiation application to analysis of a multicomponent or multiphase flow. Such information as a selected component content in the mixture transported through pipe is crucial in many industrial or laboratory installations. Properly selected sealed radioactive source and collimators, deliver the photon beam, penetrating cross section of the flow. Detectors mounted at opposite to the source side of the pipe, allow recording of digital signals representing composition of the stream. In the present development of electronics, detectors and computer software, a significant progress in know-how of this field may be observed. The paper describes application of this method to optimization and control of hydrotransport of solid particles and propose monitoring facilitating prevent of a pipe clogging or dangerous oscillations.
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Analytical methods Used in the Studies on Chemical Ecology of Termites
Krasulová, Jana ; Hanus, Robert ; Sillam-Dusses, David ; Žáček, Petr ; Jiroš, Pavel ; Šobotník, Jan ; Kalinová, Blanka ; Bosáková, Z. ; Valterová, Irena
In this paper, I review our recent results on the trail-following communication in the Neotropical termite Glossotermes oculas (Serritermitidae) and the defensive chemistry of the African termite Psammotermes hybostoma (Rhinotermitidae). These findings belong to our current project focused on chemical ecology of critical termite genera from families Rhinotermitidae and Serritermitidae.
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