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Internet of Things Device Based on Thread and 6LoWPAN
Piškula, David ; Nosko, Svetozár (referee) ; Musil, Petr (advisor)
Internet of Things is among the newest phenomena of information technologies. This work describes the evolution and future of the Internet of Things and provides an overview of its current applications, then summarize the communication interfaces and protocols usable for the creation of the Internet of Things. The main focus is put especially on the IEEE 802.15.4 standard, 6LoWPAN protocol and the Thread technology. It also explains the term of Cloud Computing, platforms that are providing it and related types of databases. The design, implementation and testing of a Thread based solution are part of this thesis.
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Advanced methods of surface topography evaluation
Šindelka, Marek ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
This thesis focuses on a measuring and topography of a components´ surface evaluation and it contains the overview of basic methods which includes the description of contact and non-contact measuring devices. Furthermore, the thesis also describes ways of surface texture evaluation through profiled and areal method, including an outline of ČSN ISO parameters. The practical part of the thesis focuses on the evaluation of metric threads´ M10 surface, crafted by diverse cutting and forming threads. The surface was scanned with the optical device called Alicona IFM G5 and it was evaluated through the profiled and areal method. The 2D and 3D parameters were acquired and then compared during the measuring.
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Machining of titanium alloys
Horáček, David ; Mouralová, Kateřina (referee) ; Píška, Miroslav (advisor)
This thesis is focused on titanium and its alloys, in terms of properties and uses. The problems of machinability, cutting tools, quality of machined surfaces and machining method are discussed. Threads in titanium alloys Ti-6AI-4V were cut in the practical part. The intention was to compare torque moments and surface quality of threads by using two cutting oils.
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Grand Central Dispatch Implementation for C++
Šalgovič, Marek ; Peringer, Petr (referee) ; Hrubý, Martin (advisor)
Grand Central Dispatch is a system which allows applications to optimally use multi-core Apple devices. This system is for the most part supported by operating systems of Apple platforms. The goal of this bachelor's thesis was to analyze the system and subsequently design and implement a library in C++. This library provides interface and functionality similar to the existing system.
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Advanced methods of surface topography evaluation
Toman, Ladislav ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
This paper deals with the description of the surface texture measurement methods, describes the devices by which the surface texture can be recorded and describes the parameters that allow the surface texture to be quantified. The practical part deals with the evaluation and comparison of the parameters of metric threads M10 made by cutting and forming by analysis of their cross-sections, then the attention is focused on the analysis of pressure forces and torques which occur during the manufacture and in the last part of the thesis there is an economic evaluation of the cost of manufacturing one piece of cut thread.
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NNTP Server as a Windows Network Service
Loupanec, Josef ; Ráb, Jaroslav (referee) ; Očenášek, Pavel (advisor)
This work includes specification and analysis of requirements, design and implementation of the internet news server. The server controls newsgroups and associated news. It provides availability of the articles by NNTP protocol and HTTP protocol (by web interface). The server supports a user authentication and an optional proxy mode, when all NNTP requests are resent to another remote NNTP server. A mechanism that provides news-downloading from remote NNTP servers and performs distribution function is included too. The application is designed to run on MS Windows NT (and higher version) as a NT service. The server is configurable by a graphic user interface. The work also includes theoretical information needed for successful accomplishment of the above-mentioned requirements.
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Production of screw connections for extreme conditions
Kukliš, Richard ; Varhaník, Matúš (referee) ; Kalivoda, Milan (advisor)
Screw/threads connections are often the chosen alternative for connecting two different components. If we want to use them even under extreme conditions, we have to choose the optimal production process, which is closely related to the choice of material and construction of the component. This research initially deals with the production of screw connections and their structural significance, at the same time it provides an overview of materials suitable for extreme conditions and then presents the production processes of thread production.
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Threading operations in the building industry
Čech, Ondřej ; Fiala, Zdeněk (referee) ; Kalivoda, Milan (advisor)
The aim of this bachelor thesis is the sumarization of common threads and thread joints used in construction industry complemented with illustrations of actual joints. On construction thread cutting possibilities, more precisely situations, where there is no possibility to use stanionary placed machinery. Mechanical engineering machinery overwiev. Technological regime of selected thread joints. This thesis is supplemented with description of specific machining and thread cutting work on heavy-duty part of hydropower plant.
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Generator of illegitimate network traffic
Blažek, Ondřej ; Smékal, David (referee) ; Blažek, Petr (advisor)
The diploma thesis deals with the problems of DoS/DDoS attacks and development of a tool, in C lanugage, for generating them. In the first chapter the principles of DoS attacks targeting the internet and transport layers of ISO/OSI model are described and also according to their characteristics divided. Selected attacks on the application layer are also described here in detail togehter with protocols which they are based on. In the following chapter there has been created a comparison of freely available tools, which could be used as a attack generators. The practical part is dedicated to a development of a tool for DoS attacks, especially design, general description and usage. Further there is a summary of the newly created library, including results of web server testing, and extensions of a web interface, which is part of the developed tool.
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