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Link layer LAN network security
Sedláček, Jiří ; Grenar, David (referee) ; Slavíček, Karel (advisor)
The bachelor‘s thesis is about security concerning local area networks of the data link layer. The goal of the thesis is to characterize basic functioning of the ISO/OSI reference model as well as describing how the data link layer works to understand the topic, specify the possibilities of attacking the data link layer (for example rogue DHCP server, ARP spoofing, CAM table overflow, attacking the spanning tree protocol and others) and possible security measures to protect against the attacks. The purpose of the thesis is also a suggestion for assembling an experimental network relating to the topic of the thesis. Theoretical part determines the most important protocols of the data link layer, methods of abusing them and protection of those protocols. The practical part contains a brief description of the attacks, used utilities for accomplishing the attacks, a network topology, execution of the attacks, detection and protection against the attacks as well as briefly summarizing the results. The thesis also sums up some of the possible recommended configuration to repel the attacks and suggesting how to behave in a cyber environment. For the purpose of simulating the attacks, Kali Linux and Windows 10 are the operating systems that were used the most in this thesis.
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Use of the CAM software PowerMILL 2018 for machining of a motorbike lever
Šprta, Pavel ; Kalivoda, Milan (referee) ; Polzer, Aleš (advisor)
This diploma thesis deals with designing of manufacturing process of motorcycle lever prototype using PowerMILL 2018. The research part of the thesis contains analysis of materials used in the production of motorcycle levers and the introduction into CAD/CAM systems. The practical part contains choice of material, fixtures, cutting tools and solution of NC program itself. Summary of used strategies follows and ecenomical evaluation is performed at the end of the thesis.
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Entwicklung eines Wälzsstoßaggregates zur Erzeugung von Gerad- und Schrägverzahnungen auf flexiblen Bearbeitungszentren
Pavlík, Martin ; Hänel, Thomas (referee) ; Blecha, Petr (advisor)
Diplomová práce představuje návrh agregátu, který umožní rozšíření obráběcího centra o technologii obrážení ozubení odvalovacím způsobem. Principem této jednotky je, převést rotační pohyb vřetene na translační pohyb potřebný pro obrážení při současném dodání odvalovacího pohybu nástroje. Mechanismu zároveň zajišťuje konstantní řeznou rychlost, čímž zvyšuje životnost nástrojů. Jednotka je rozdělena na 5 dílčích mechanismů. U každého z mecha- nismů je analýzou použitelných metod vybrána nejvhodnější varianta. Ta je následně navrh- nuta a případně propočítána. V práci je popsán návrh takového řešení pomocí mechanických převodů a vaček. Tento mechanismus umožňuje obrážení při rychlosti 900 dvojzdvihů/min. při maximální vyvinuté síle 5,5kN. Jednotka je primárně určena pro malovýrobu, jako levnější alternativu k nákupu stroje pro obrážení.
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CNC pocket milling of aeronautical alloys
Wiecková, Kateřina ; Sedlák, Josef (referee) ; Ohnišťová, Petra (advisor)
The aim of the work is to generate and verify pocket milling technology in aviation alloy 7475-T7351 with respect to machine time, surface and machining productivity. First part of the work is theoretical analysis of cycles of milling of simple and complex pockets. Next part of the work is focused on the desing and optimization of strategy of milling of simple and complex pockets in CAM programs and its experimental verification.
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On the milling of turbine blades
Raška, Tomáš ; Polzer, Aleš (referee) ; Píška, Miroslav (advisor)
The aim of this work is an introduction to milling of turbine blades. It is focused on description of turbines, of materials use for their manufacturing, of milling, of CAD/CAM systems, methods used to generate trajectories on complex surfaces and presentation of principal issues encountered during milling of turbine blades.
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CNC Mill Control System
Hájek, Luděk ; Jirgl, Miroslav (referee) ; Arm, Jakub (advisor)
This Bachelor thesis deals with designing construction and control system of 3-axis hobby CNC router using LinuxCNC. All axes are driven by Microcon SX 24-2341 stepper motors, which are provided with power from Leadshine M542 stepper drivers. LinuxCNC is installed on real-time PC with Ubuntu 12.04.5 LTS and it is connected with drivers via breakout board. CAD/CAM software Autodest Fusion 360 is used for graphical designing of final product, creating toolpaths and generating G-code. The Bachalors thesis contains research of construction elements, possibilities of CNC controlling, calculation and selection of suitable motors, design and documentation of CNC control system including documentation of all settings of LinuxCNC and CAM part of Fusion 360 as well as example of final product, created using this CNC router.
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Výroba desek plošných spojů pomocí CNC zařízení s využitím Open Source nástrojů
HOUŠŤ, Milan
This bachelor thesis aims to describe the production process of prototype and small series printed circuit boards on a computer numerically controlled (CNC) milling machine, and to document a practical reproducible working procedure using CAD-to-CAM files and open source tools to create a CNC control file. In the analysis section the results of the proposed procedures will be presented using a specific printed circuit board as example.
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Software for Data Processing and Control of CNC Machine
Kraicinger, Lukáš ; Rozman, Jaroslav (referee) ; Šátek, Václav (advisor)
The thesis focuses on the design and impelementation of a control system for a CNC machine producing gears with specific integrated CAM system. The study includes practical verification of system functionality, which includes the design and creation of an electronic circuit on this machine. A prototype of a 6-axis machine is being developed at the Faculty of Mechanical Engineering BUT in Brno as a master thesis simultaneously with the creation of this term project. It is a compact automated gear producing machine (all in one) which requires only appropriate semifinished product and correctly set parameters of teeth using the touch screen on the machine.
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Beliefs about medicines, Complementary and Alternative Medicine Use and Medication Adherence
Drapáková, Tereza ; Matoulková, Petra (advisor) ; Malý, Josef (referee)
1 ABSTRACT BELIEFS ABOUT MEDICINES, COMPLEMENTARY AND ALTERNATIVE MEDICINE USE AND MEDICATION ADHERENCE Student: Drapáková Tereza Tutor: PharmDr. Matoulková Petra, Ph.D. Department of Social and Clinical Pharmacy, Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Czech Republic Introduction: Medication non-adherence is a very complex problem across different diseases leading to failure of treatment and increasing costs for medical care. Medication adherence is influenced by various factors and is also connected with different patients' attitudes to classical pharmacotherapy and complementary and alternative medicine (CAM). CAM is nowadays quite often used option for chronically treated patients. Aim of the study: The aim of the study was to analyse medication adherence at chronically treated patients visiting pharmacies in the Czech Republic, their attitudes to CAM including percentage of using CAM, the most common reasons using CAM and which types of CAM are the most spread among asked patients. Methods: Questionnaires were distributed in pharmacies in the Czech Republic among patients 18 years old and older who were chronically treated for at least 3 months. Selected patients were asked to complete a questionnaire containing questions about CAM, Czech version of Medication Adherence...
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Use of selected computer aided methods in the field of orthotics - prosthetics
Jagerová, Jana ; Černý, Pavel (advisor) ; Mikšíčková, Petra (referee)
Title: Use of selected computer aided methods in the field of orthotics - prosthetics Objectives: The aim of this work is to process a systematic search of the available resources in the use of computer-aided (assisted) methods in the field of orthotics - prosthetics and sort the retrieved information into a comprehensive structure. Comprehensive information on the current use of these technologies in the field of orthotics - prosthetics. Furthermore, based on research carried out to determine possibilities of use of these technologies in the field orthotics - prosthetics. If there is enough information, cost-effectiveness analysis will be done. Methods: For the development of this thesis, a chosen method of systematic search of published resources available databases was used. Results: Use of computer-aided methods in the field orthotics - prosthetics is available in several versions. In Czech Republic this sector still favours a majority to conventional production methods, greater representation of computerized methods in this field is outside of the Czech Republic. Great attention is paid to these technologies, especially in the academic field in research projects. Keywords: Computer aided methods, rapid prototyping, CAD/CAM, orthotics - prosthetics
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