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DLP solution as an organization data protection tool
Drápalíková, Jitka ; Mezera Michal, Bc. MSc (referee) ; Sedlák, Petr (advisor)
The bachelor thesis deals with elaboration of data protection proposal using Data Loss Prevention technology for a particular organization. The theoretical part is focused on data problematics in company’s environment and the DLP technology itself. The work also covers the comparison of DLP products on the market, selection of the product, its scope, proposal of setting and calculation.
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Tool for AutoCAD Sketches Protection
Smejkal, Adam ; Kačic, Matej (referee) ; Ovšonka, Daniel (advisor)
The main goal of this thesis is to develop a tool that helps to protect sensitive data in drawings created by AutoCAD 2016 using methods employed by information rights management systems (IRM). It studies general principles of data leak prevention, closely describes IRM systems and analyzes suitable methods to extend the functionality of AutoCAD with a goal of integrating it into an IRM system as a client application.
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3D scanner for educational purposes
Romanovský, Jiří ; Navrátil, Robert (referee) ; Koutecký, Tomáš (advisor)
This diploma thesis deals with the design of a 3D optical scanner using the structured light projection method. The aim of this thesis is to demonstrate the principles and processes of 3D scanning by using the DLP LightCrafter projector and the ImagingSource camera. The individual stages of the measurement process will be implemented to the Matlab software environment to describe the various principles and methods which can be used for digitizing the objects.
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Automatic exposure unit for PCB production
Blahút, Jozef ; Spáčil, Tomáš (referee) ; Chalupa, Jan (advisor)
This diploma thesis deals with the issue of fast high-quality prototype production of printed circuit boards for the needs of the mechatronics lab. Within the scope of this thesis a prototype machine was proposed and created together with control software, which by the help of DLP projector and two stage axis allows to produce printed circuit board in relatively short period of time.
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Development of process parameters for the stereolithography
Vítek, Jan ; Škaroupka, David (referee) ; Paloušek, David (advisor)
This bachelor thesis deals with the search for optimal process parameters to reach a high strength of the Detax Solflex model material, with the DLP (digital light processing) 3D Solflex 650 printer. In the first part of this thesis the principle of printing using a laser and using a DLP projector and their comparison are presented. Further information about materials and impact of the process parameters on a printing are discussed. Based on a knowledge two assumptions were set: influence of exposure time and influence of layer thickness on strength. Firstly, samples were tested by the hardness Shore D test and the results from the test were compared. New samples for the stress test with the optimal set of parameters given by the previous test were printed and tested. Process parameters influence on strength was determined from the achieved results.
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Alternative methods in cryptology
Hampl, Dalibor ; Doležel, Radek (referee) ; Hajný, Jan (advisor)
In the first part of this thesis explains, what is generally cryptography, generally analyze the problem of the current encryption methods. These include asymmetric, symmetric and hybrid encryption methods. The second part focuses on the theory of lattices and their main mathematical problems, then the shortest vector problem, the closest vector problem, the approximate shortest vector problem and the approximate closest vector problem. Mathematically difficult problems of lattice are used in an encryption method GGH for asymmetrically encrypted communications method and GGH for digital signatures. It explains mathematical methods, which use these encryption methods. Another part of this thesis deals with the encryption method and the establishment of XTR on Diffie-Hellman protocol, thus XTR-DH. It explains mathematical methods, which use methods XTR, XTR-DH and Diffie-Hellman protocol. There are shown the main mathematical problems for this part of thesis DHP (Diffie-Hellman problem) and DLP (discrete logarithm problem). The fourth part focuses on a program designed to demonstrate the GGH encryption method for asymmetrically encrypted communications. Describes the structure, functionality, graphical part of the program and shows to a user interface. Students can test how the GGH encryption method behave when entering different input values. During the work with the program, the user should obtain sufficient information to understand the principles of this encryption method.
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Solution of Internal Threats in the Information Security Management System
Trčka, Martin ; Sopuch, Zbyněk (referee) ; Sedlák, Petr (advisor)
This diploma thesis deals with internal threats in the organization and their restriction with the assistance of DLP system. The first part of the thesis discusses the information security management system and describes requirements for the introduction of the ISO/IEC 27000 standards series. Next chapters detail internal threats and technical description of the DLP system. The second part of the thesis analyzes the organization and describes the process of implementation of DLP solution, which aims to reduce internal threats. The conclusion of the thesis describes acceptance agreement and financial evaluation of the implementation.
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Design of projector
Zvědělík, Libor ; Zvonek, Miroslav (referee) ; Haltof, Vladimír (advisor)
This thesis focuses on a design process of dataprojector, which respects the functional, technical and aesthetic requirements. Historical, technical and design analyzes were used to reach the desired goal. The outcome of this thesis is a design of a projector that meets all the requirements. This thesis contributes to the subject by innovating the shape solution of the projector and by dealing with excess cabling.
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Radiation risks potentially connected with computerized tomography in Czech republic
VEVERKA, Martin
Diagnostic X-rays are the most important man-made source of radiation exposure for the general population, contributing about 14% of the total annual exposure worldwide from all sources. However, although diagnostic X-rays provide great benefits, it is generally accepted that their use involves some small risk of developing cancer. The risk to an individual is probably small because radiation doses are usually low, but the large number of people exposed annually means that even small individual risks could translate into a considerable number of cancer cases. The aim of this work was to reestimate this risk on the basis of the annual number of CT examinations undertaken in the Czech Republic and typical doses applied. But there wasn't possible to find necessary data for planned reckonings by return, because their archiving isn't obligatory. This study, therefore, only describes common incidence of ionising radiation with human organism and further, all inevitable mathematically-physical equations needed for realization of primary planned investigation, with all necessary datal inputs included. In findings of this work there are drafted and demonstrated procedures, how to obtain and cultivate needed data ,so it was possible to compare it with technical literature.
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