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Project Management in ExtJS
Zajíc, Jiří ; Šperka, Svatopluk (referee) ; Dytrych, Jaroslav (advisor)
This bachelor's thesis is focused on project management using Gantt charts. This issue is solved as a client-server application based on ExtJS library. This thesis suggests possibilities of ExtJS and brings a detailed description of the Gantt chart. This description brings a design of the system which covers the main principles of creating a diagram, its behaviour and drag&drop operations used for editing the chart. According to the concept the implementation is then processed and described in detail.
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Design of humanoid racing robot
Zajíc, Jiří ; Marada, Tomáš (referee) ; Věchet, Stanislav (advisor)
Thesis deals with the selection and preparation of robot for competition RoboCup HumaoidLeague. As a basis for robot is used Robotis Bioloid Kit. The kit is extended with a new control unit Roboard-100, rotation and acceleration sensor, a webcam, and Li-Pol batteries. Furthermore, it examined communications between servo drives and designed signal converter from the USB to Dynamixel bus. Its functionality is then tested on the basic control programs.
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Modern Methods for Tree Graph Structures Rendering
Zajíc, Jiří ; Polok, Lukáš (referee) ; Zemčík, Pavel (advisor)
Tento projekt se věnuje problematice zobrazení velkých hierarchických struktur, zejména možnostem vizualizace stromových grafů. Cílem je implementace hyperbolického prohlížeče ve webovém prostředí, který využívá potenciálu neeukleidovské geometrie k promítnutí stromu na hyperbolickou rovinu. Velký důraz je kladen na uživatelsky přívětivou manipulaci se zobrazovaným modelem a snadnou orientaci.
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Design of automatic drive for church bells
Zajíc, Jiří ; Březina, Lukáš (referee) ; Krejsa, Jiří (advisor)
The Diploma thesis describes the design, manufacture and testing of a universal automation machine for church bells. The research section summarizes the bell, way of use and properties. The drives and their starting and power switching characteristic are analyzed. The chain drive based on the selected engine and the whole assembly is designed and tested by using PLC. Unique controller based on a modular design was designed. Sensors based on magnetic rotary encoder were also created for this unit. The entire circuit was tested on three evangelical church bells in the town Klobouky u Brna.
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Comparison of properties of butt joints welded by laser and plasma for austenitic and ferritic stainless steel
Zajíc, Jiří ; Kubíček, Jaroslav (referee) ; Mrňa, Libor (advisor)
The thesis is focused on evaluation and comparison of welds made by welding technologies using laser and plasma. For the purpose of comparing those technologies, were chosen austenitic stainless steel x5CrNi18-18 and ferritic stainless steel X6Cr17. These materials were chosen for their diversity in properties gained by high temperatures that go along with most welding processes. First part of the thesis is focused on description of welded materials and technologies of laser and plasma welding. In following experimental section, the thesis is focused on evaluation of welded samples, made for this purpose. Samples were examined for metallography, specifically macrostructure and microstructure. Followed by tensile test of mechanical properties and microhardness test.
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Programming CUDA with C#
Zajíc, Jiří ; Kačic, Matej (referee) ; Jurnečka, Peter (advisor)
This master's thesis is focused on GPU accelerated calculations on NVidia graphics card. CUDA technology is used and converted to implementation on a .NET platform. The problem is solved as a compiler from C# programing language to NVidia CUDA language with expression atrributes of C# language that preserves the same semantics of actions. Application is implemented in C# programing language and uses NRefactory, the open-source library.
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Application of plasma arc in technical practice
Zajíc, Jiří ; Mrňa, Libor (referee) ; Daněk, Ladislav (advisor)
ZAJÍC, Jiří: Application of plasma arc in technical practice The thesis is focused on the description of technologies using plasma, for its high temperatures, dynamic effects and ionization. The first part of the thesis is focused on the description of the process of ionization of gases and individual factors influencing the parameters of the resulting plasma arc. The following part is a description of the developed technologies that use gas ionization for their function, such as welding, cutting, thermal spraying and heat treatment. In a final phase of thesis is disposed practical experiment containing comparing welds made by plasma technology and welds made by TIG technology. These welds are compared in terms of hardness, heat input and the plasma welds in dilution of weld metal.
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Graphs in Web Browser Using Javascript
Zajíc, Jiří ; Dytrych, Jaroslav (referee) ; Máčel, Lukáš (advisor)
This bachelor's thesis deals with displaying graphs in web browsers. The first part introduces in detail current technologies and application design. The practical part includes implementation, description and documentation of the application. The result is a functional portable library for graph creation in JavaScript using canvas element and graphical user interface.
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Modern Methods for Tree Graph Structures Rendering
Zajíc, Jiří ; Polok, Lukáš (referee) ; Zemčík, Pavel (advisor)
Tento projekt se věnuje problematice zobrazení velkých hierarchických struktur, zejména možnostem vizualizace stromových grafů. Cílem je implementace hyperbolického prohlížeče ve webovém prostředí, který využívá potenciálu neeukleidovské geometrie k promítnutí stromu na hyperbolickou rovinu. Velký důraz je kladen na uživatelsky přívětivou manipulaci se zobrazovaným modelem a snadnou orientaci.
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Comparison of properties of butt joints welded by laser and plasma for austenitic and ferritic stainless steel
Zajíc, Jiří ; Kubíček, Jaroslav (referee) ; Mrňa, Libor (advisor)
The thesis is focused on evaluation and comparison of welds made by welding technologies using laser and plasma. For the purpose of comparing those technologies, were chosen austenitic stainless steel x5CrNi18-18 and ferritic stainless steel X6Cr17. These materials were chosen for their diversity in properties gained by high temperatures that go along with most welding processes. First part of the thesis is focused on description of welded materials and technologies of laser and plasma welding. In following experimental section, the thesis is focused on evaluation of welded samples, made for this purpose. Samples were examined for metallography, specifically macrostructure and microstructure. Followed by tensile test of mechanical properties and microhardness test.
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