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Modelování profilů rychlosti větru naměřených sodarem v komplexním terénu
Hošek, Jiří
The wind profiles with two Doppler sodars were measured in wide range of synoptic situations in Ore mountains (Erzgebirge) and in the region of Orlické hory (mountains), both in the Czech republic. Ore mountains represent the region most suitable for construction of wind turbines in the Czech republic. Concerning the observed wind profiles, their generalization may serve for improvement of precision of the simulated wind profile fields. In the second part of the work, we performed the modelling of wind speed profiles in the complex terrain of above-mentioned mountain ranges. We have applied the non-hydrostatic meso-scale models KAMM and PIAP. The numerical simulations with the models were performed for different situations of the ambient flow, described by geostrophic wind speed and direction, and temperature stratification.
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Catalogue of metallographic examinations of iron objects from medieval sites
Hošek, Jiří
The article introduces the catalogue, which has been prepared in the Laboratories of conservation CAS Prague and which should help archaeometallurgists and archaeologists gain a basic orientation in the archaeometallurgical research into Bohemian and Moravian medieval iron objects that has been carried out to date. Since a number of such metallographic examinations have already been published it was decided above all to insert sites and objects from the 13th to 15th centuries in the first part of the catalogue. The metallography of objects from the medieval village of Pfaffenschlag is shown here as example of how the single sites are treated there.
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New archaeological finds from Horská Kvilda
Hošek, Jiří ; Kudrnáč, Jaroslav
Several iron objects and pieces of slag, including a 14th to 15th centuries war-knife and horseshoe, were found in an area of medieval gold mines near Horská Kvilda in 2002. The war-knife had a blade of high quality with a butt-welded and quenched cutting edge, the handle was presumably made of horn and a guard piece was lily-shaped. There is no doubt that this weapon belongs among the more precious and decorated pieces and we can assume its relation to a higher social environment. The horseshoe (suitable for front hoofs) wasn’t provided by steel (in order to improve its abrasion resistance) and thus ranks among simple products.
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Experiment ALICE
Hošek, Jiří ; Hřivnáčová, Ivana ; Kugler, Andrej ; Kushpil, Vasilij ; Kushpil, Svetlana ; Petráček, Vojtěch ; Řehák, P. ; Šafařík, K. ; Šumbera, Michal ; Tlustý, Pavel ; Wagner, Vladimír ; Zákoucký, Dalibor
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