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The utilization of 3D computer reconstruction visualizations in archaeology
Unger, Jiří ; Jiráň, Luboš (advisor) ; Ruttkay, Matej (referee) ; Wilczek, Josef (referee)
Mgr. Jiří Unger The utilization of 3D computer reconstruction visualizations in archaeology Abstract of dissertation thesis The visual presentation is in the field of archaeology one of the main communication media for conveying information and interpreting it. The recent introduction of digital technologies has brought a whole new dimension to archaeological visualisations. As a result of this development, they become three-dimensional, virtual, multifunctional and interactive. Technological development moreover has not only influenced the way how to retrieve and process the data, but greatly expanded as well the ability to simulate and visualize their different aspects in virtual environment. Since the beginning the virtual archaeology has been taken as direction that would bring new groundbreaking knowledge into the archaeology. However, the current situation is that 3D computer visualizations are just popular conference theme than a standard tool of archaeology as a science, and most works on virtual archaeology still needs to advocate the benefits of 3D visualizations. Therefore, the dissertation thesis try to deal with theoretical issues of preparation, organisation and analysis of input data in the process of creation of 3D reconstruction computer models, then with possible solutions of visualization...
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The habitation model of central Považie in Middle Ages
Malec, Juraj ; Slivka, Michal (advisor) ; Unger, Josef (referee) ; Šalkovský, Petr (referee)
The problem of study of habitations (cities, villages, castles, small feudal castles, etc.) on the territory of what is now Slovakia in the Middle Ages counts within little investigated topics. This work is offering a comprehensive catalogue list of all settlemenmts, corresponding to the current state of research in this field, with the focus on fortification system. Specific problems of habitation will be solved on singular models with the most advanced level of archaeological and historical exploration. The region of central Považie was in the Middle Ages a very important part of Hungary, thanks to its straight contact with the region of Morava. A lot of fortification of various types, forming big frontier line, were built for the assecuration of these restless borders. Throught this territory passed the important Váh trade route, with several more-or-less important connections from the region of Morava. In its north part, in the victinity of the castle Budatín lied a very considerable trade crossroad, leading to regions of Silesia and Poland.
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Archeology of the Fortified Manor in the Czech Lands. To the beginnings of the Medieval Fortified Residences
Laval, Filip ; Klápště, Jan (advisor) ; Žemlička, Josef (referee) ; Unger, Josef (referee)
Archaeology of the fortified manor in the Czech lands To the beginnings of the medieval fortified residences The work is dedicated to the medieval fortified manor in the Czech lands with regard to the need to formulate new questions. He marginally considers the questions of actual and historical terminology and its semantic content. To explore the functions of the fortified manors the structure of the associated settlement is discussed. A substantial testimony is attributed to some of selected written sources pointing to the legal-historical or jurisdictional context of "private" fortified settlements/residences. A separate chapter is devoted to the analysis of several examples of archaeological research from the Czech lands and from western parts of Europe, which revealed situations classifiable to fortified manor, respectively castles, which was preceded by much less or not at all fortified settlements, while maintaining close spatial continuity. So the questions concerning the beginnings of that type settlements are pronounced. With this packet of problems the work deals applying a comparative analysis that leads to some reassessment of the importance of the Romanesque church with the western tower as a kind of reduction of the castle model known from contemporary (12th century) Western European regions...
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Measurement of the impulsive force generated by colapsing bubble close to a solid boundary
Müller, M. ; Unger, J. ; Holata, J. ; Zima, Patrik
The article presents experimental results of the acoustical and optical study of cavitation bubble collapse close to a solid boundary in water. The bubble was generated by discharge of low-voltage capacitor into a couple of wires closing a simple circuit. Different distances from the solid wall and different maximum bubble radii were studied. The bubble radius was studied using time-resolved photography and by PVDF film sensor glued on the solid boundary. The illumination was provided by high-power led diode. Synchronization of the system was provided by pulse generator connected to an oscilloscope. The impact power of the bubble to the wall was estimated from the time-resolved photography of the bubble and from the PVDF film sensor signal. The PVDF film sensor calibration was performed by a pendulum test to estimate the impact force.
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COLLAPSE OF A CAVITATION BUBBLE GENERATED BY LOW VOLTAGE DISCHARGE IN WATER
Müller, M. ; Unger, J. ; Buďárek, T. ; Zima, Patrik
The article presents experimental results of the optical study of cavitation bubble collapse close to a solid boundary in water. The bubble was generated by discharge of two low-voltage capacitors. High-speed CCD camera was used to record the time evolution of the bubble size. High-power halogen lamp was used for illumination. The system was synchronized by pulse generator connected to an oscilloscope. The velocity of the re-entrant jet was estimated from the time resolved photography for three different maximum bubble sizes.
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Archeogeophysical Prospecting in Moravia in the Yers 1974-2000
Hašek, Vladimír ; Unger, J.
Geophysical methods exerted in complex with other scientific branches more than 25 at archaeological research of Czech Republic brought series of positive findings for solving of various tasks from paleolith to top medieval. The paper deals with the development of this discipline of science from methodology of in situ works over evaluation of measured data to practise presentation and confrontation the results with reality.These could be documented at a number of examples from problems of open and bastion settlements, necropolises, sacred and castle architecture, municipal historical centres, productive equipment atc.
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