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CFD simulation of fluid-induced vibration
Kubíček, Radek ; Vondál, Jiří (referee) ; Buzík, Jiří (advisor)
The presented diploma thesis focuses on flow-induced vibrations of a tube. The main aim and benefit is the analysis of tube stiffness in contact with the other one and the following use of obtained values and characteristics in CFD simulations. The work can be divided into three parts. The first part is about the current state of knowledge of flow-induced vibrations. It introduces the basic mechanisms of vibration and methods for their suppression. The second part deals with the determination of stiffness of defined geometry tube including the collision with the other tube. The final part demonstrates and evaluates the application of obtained characteristics in CFD simulations.
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Steganography
Podhorský, Jiří ; Kubíček, Radek (referee) ; Zemčík, Pavel (advisor)
This bachelor project focuses on steganography and presents new modifications of known metods steganography and their implementation. It also presents implementation of adaptive metod Neighbours, for comparison. Both of the metods are based on the "Least Significant Bit" exploitation. It is also demonstrated that newly proposed modification can be used in other metods of steganography. The purpose of proposed method is to encode a secret information into the digital image so that the information is not easily detectable.
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Visualization of Route Information and Elevation Profile
Kolčárek, Michal ; Přibyl, Bronislav (referee) ; Kubíček, Radek (advisor)
An ambition of this thesis was to create a complex program for managing geographic data from GPS receiver with graphic user interface. The final application is able to show an information about tracks, to draw tracks into map and to create graphs. Main challenge was to create a user friendly aplication, which is easy to manage even by beginner users. In this application was used a Java language using objected-oriented paradigm.
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Presentation Software - Solid Geometry, Stereometry
Straka, Tomáš ; Kubíček, Radek (referee) ; Štancl, Vít (advisor)
The main theme of this document is to describe the way of creating presentation software of solid geometry and stereometry. This application tool should help teachers more to explain the subject. Student has opportunity with this application to better understand explained subject. After a long deliberation and cooperation with teachers from primary school we decided to choose a solid geometry and stereometry like the aim of this application. Later we added part where I solve the right method used in geometry constructions. In this document is described the process of work proceeding beginning with analysis, over implementation to testing. Important parts of this application are graphic interface, application control tools and the form of object graphical representation.
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Building Designer and Generator
Jurka, Zdeněk ; Kubíček, Radek (referee) ; Přibyl, Jaroslav (advisor)
This work deals with design and creation of 2D editor for fast transfer of bitmap building plans to a vector representation. Emphasis is placed on an object oriented design of editor allowing extension of the automatically generating 3D object representation obtained from the vector form. The thesis describes an important part of the design of the user interface and an equally important mathematical background of the implemented 2D features. The work also addresses the description of the intended generation of 3D models with a choice of appearance of the resulting 3D model.
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Library of Algorithms for Text Ciphering
Vozák, Petr ; Řezníček, Ivo (referee) ; Kubíček, Radek (advisor)
p, li { white-space: pre-wrap; } p, li { white-space: pre-wrap; } This thesis deals with text ciphering. The presented paper describes at first basic theoretical background of cryptology and basic distribution of cryptographic algorithms. Then it describes a brief history of encryption from beginning to present. Theoretical description of ciphering methods and its implementation details are discussed here. All basic types of conventional encryption algorithms and also some modern ciphering methods are included; these are substitution, transposition, steganographic or combinations encryption systems. The result of this thesis is the library of algorithms for text ciphering in Java with a sample application, which demonstrates its funcionality.
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Costs of Running a Car Administration Android Application
Dorazil, Jan ; Široký, Vít (referee) ; Kubíček, Radek (advisor)
The bachelor thesis deals with mobile Android platform. The application for administration of costs of running a car was created within this thesis. It describes design and implementation of the application and analyses calculation of car's consumption and carbon dioxide emissions. The application uses SQLite database, asynchronous tasks and modern user interface components.
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Library of Algorithms for Text Ciphering
Mikulka, Jiří ; Havel, Jiří (referee) ; Kubíček, Radek (advisor)
This thesis brings an overview of historical and modern methods and approaches used in cryptography. It also describes and assesses ciphers, which have been used since the very beginning of encryption till modern ciphers. Based on information resulting from this overview the reader should be able to distinguish between ciphers, know their advantages and disadvantages, and be able to choose the best cipher for any purpose. Ciphers mentioned in this thesis are implemented in a library called CipherLib , which shows usage of every described cipher.
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Tourist Stamps Collection Administration Application for Android
Mráčková, Kateřina ; Láník, Aleš (referee) ; Kubíček, Radek (advisor)
This bachelor thesis describes design and implementation of an application for administration of tourist marks collection for Android platform. The object of the thesis is to implement application allowing management for more profiles, filtration mechanism, view on map and simple statistics creation. Application is written in Java language and for its work uses, among other things, GPS, two points distance calculation by Great Circle algorithm and source data retrieving from XML files.
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