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Convective environment indicies and their comparison
Marek, Lukáš ; Müller, Miloslav (advisor) ; Kašpar, Marek (referee)
In this work I created the overwiew of instability indices and other characteristics of convective environment which can be found in the literature. On the basis of variables, which the instability indices are calculated from, I suggested their categorization. It was created five groups of instability indices: (i) indices of isobaric levels differences, (ii) indices of rising air parcel, (iii) indices of potential temperatures, (iv) indices of the energy potential of convection and (v) indices of wind shear. In addition to these five categories it was created the sixth category consists of other thermodynamic characteristics. In the last chapter I used the upper air soundings data and values of instability indices of the University of Wyoming for one storm in Prague and I compared instability indices to each other. The group of the indices of potential temperatures was the most successful in the storm forecast, except the Rackliff index. The bulk Richardson number from the group of indices of wind shear forecasted a supercell storm correctly. The work could be used for creation of instability climatology of the Czech Republic on the basis of the selected instability indices. Keywords: instability index, convection, convective storm
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Parallel Processing and Software Performance
Marek, Lukáš
The thesis focuses on the effects of resource sharing on software performance for selected resources of modern processor architectures, especially shared memory caches. The thesis introduces a framework for conducting experiments that assess the impact on software performance, and, using this framework, designs, executes and evaluates the experiments. The results provide an estimate of the scale of the performance impact of resource sharing on the experimental platform.
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3D games in J2ME
Hanslík, Ondřej ; Yaghob, Jakub (advisor) ; Marek, Lukáš (referee)
Aim of this text is to introduce readers to the difficulties of 3D game development on J2ME mobile platform in all stages from primary design to distribution. History of 3D games is described in detail with emphasis to used physical and graphical algorithms. In successive chapters, accessible 3D technologies and APIs are compared. A separate chapter examines the possibilities of multiplayer games, analyzing Bluetooth technology in detail. Last chapters are dedicated to implementing an engine for First Person Shooter games based on M3G library.
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History and Backup Support for zlomekFS
Wartiak, Rastislav ; Babka, Vlastimil (advisor) ; Marek, Lukáš (referee)
zlomekFS is a distributed file system that supports disconnected operation using local cache. During synchronization of local changes it offers easytouse conflict resolution mechanism. Further improved it became a file system with no specific kernel code. It has therefore a good potential in future public use. As the content of this file system can be updated by many users, keeping history of the changes can be a useful feature. This thesis implements file versioning in zlomekFS, answering the questions such as how to store and access the history. On top of the versioning, the possibility of consistent backup is introduced into the file system. New functionality is derived from the analysis of other file systems with similar features and selection of the most suitable approach for zlomekFS.
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Parallel Processing and Software Performance
Marek, Lukáš ; Bulej, Lubomír (referee) ; Tůma, Petr (advisor)
The thesis focuses on the e ects of resource sharing on software performance for selected resources of modern processor architectures, especially shared memory caches. The thesis introduces a framework for conducting experiments that assess the impact on software performance, and, using this framework, designs, executes and evaluates the experiments. The results provide an estimate of the scale of the performance impact of resource sharing on the experimental platform.
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Relational database systems with a view to library applications
Marek, Lukáš ; Souček, Jiří (advisor) ; Basl, Josef (referee)
Cílem této práce je překlenout propast mezi akademickou teorií o databázích a skutečným vytvářením databází v reálném knihovnickém světě. Práce je zaměřena na výklad informací, které je třeba vzít v úvahu, pokud se rozhodneme navrhovat databáze pro knihovní aplikace. V textu diplomové práci není vynecháno ani důležité vypracování analytické dokumentace k databázovým projektům. Stejně tak jsou popsány i možné návrhy grafických uživatelských rozhraní. Práce vychází z případů, které se vyskytují v reálném provozu knihovny, resp. v knihovnickém systému, jenž je v dnešní moderní době stěžněm každého provozu knihovny. Tyto případy se zakládají na běžných implementacích jazyka SQL.
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Simulation of traffic infrastructure
Pak, Hak Chol ; Marek, Lukáš (referee) ; Kofroň, Jan (advisor)
The aim of the project is to simulate the movement of vehicles on the road. The project includes the graphical simulator and the graphical editor of the traffic road network. Editor traffic road network allows users to create and edit network. With the traffic road network will be able to simulate the movement of vehicles and obtain simulation results. The simulation is carried out with its own simulation model, which has two important models - control model of movement of vehicles and traffic lights.
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Economic performance of the EU vis-a-vis the USA
Marek, Lukáš ; Urban, Luděk (advisor) ; Svačinová, Tereza (referee)
Diploma thesis "Economic performance of the EU vis-à-vis the USA" deals with the issue of EU economic underperformance vis-à-vis the US economic efficiency. This negative trend can be observed since the early 70's. The analysis is based on the assumption that the economic gab between both economies rests on structural grounds. This paper focuses on two areas, which are important for economic growth in the EU. Firstly, it is the economic competition in the Common market. This theme is directly related to the process of European economic integration. The analysis indicates that good market accessibility for competitors stimulates productivity growth in the respective industry. However, firms in the Common market have to face higher barriers to entry and exit than their counterparts in the US. The second field of study deals with research and development in the member states. Present endogenous growth theories assume that technological progress is a crucial factor of long-term economic growth. European Common market should therefore create conditions favourable to business funded R&D so that more and better innovations can be introduced in Europe. However, the analysis indicates that the economic gab between the EU and the US takes place not just due to underdeveloped ICT and biotechnology sector. A great deal...
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Multiplayer of the Whisp Card Game
Marek, Lukáš ; Dvořák, Radim (referee) ; Kubát, David (advisor)
This bachelor's thesis describes the design and implementation of the whisp card game. The game is designed as a client-server application. Users connect to the server and have the opportunity to join an already established game or create your own game. The application is implemented in C++ using the Qt framework.
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