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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Application of electric resistivity tomography in assessing odl gold mines Kometa
 ŠEFČÍK, David
The aim of this diploma thesis is to test the possibility of using the geoelectrical resistivity tomography in tracing mining areas within the territory of the medieval gold-mines "Na Kometě" in the Písek Mountains and subsequently, based on the measured data, to estimate the simplified characteristics of the bedrock to a depth of 16 metres. The student will get acquainted with the basic geophysical instrument ARES as well as the basic interpretation of the data. The diploma thesis deals with basic geophysical instruments as well as with the occurrence of gold in the territory of South Bohemia. The submitted thesis has 129 pages and is divided into ten chapters.
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Indukce autogenie biologicky aktivními látkami u druhu \kur{Culex quinquefasciatus Say}
 ŠEFČÍK, David
The main aim of this study was determinate which factors could induce autogeny and compare differences between autogenous and anautogenous populations of mosquitoes. All experiments were done with \kur{Culex quinquefasciatus Say}. Effects on temperature and food on the inductuion of autogeny were studied. Autogenous females usually don´t have to receive a blood during the first ovarian cycle. Our results confirmed that autogeny can be induced by temperature and different food high nutritive level.
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