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Catalytic converter and particulate filter functions on diesel vehicles
Šišpera, Adam ; Beran, Martin (referee) ; Bazala, Jiří (advisor)
Tato bakalářská práce se zabývá představením dieselových emisně-redukčních systémů široké veřejnosti, odkrývá základní principy funkce dieselova motoru, mechanismy vzniku emisí a následně se věnuje jejich regulaci za pomocí katalytické redukce a filtru pevných částic. Odhaluje, proč je provozní teplota pro funkčnost těchto systémů klíčová a prezentuje možnosti, jak ji regulovat. V závěru pojednává o možnostech snížení uhlíkové stopy a vyhovění nadcházející emisní normě EURO VII.
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System for Quality Control Management of Devices
Černý, Lukáš ; Hrivňák, Ján (referee) ; Hynek, Jiří (advisor)
This diploma thesis describes both the theoretical and practical part of the process of design and implementation of interactive computer software for the~management of~the~quality control of the~devices, assigned by SIGMA GROUP a.s., more precisely its Energo division, which is engaged in the maintenance and repair of pumping equipment. The theoretical part explains the concept of user experience, its acquisition methods, specification of~requirements and interface design methods. The next part is focused on the description of the~formats used by common text editors. Within the theoretical part is described the design of the interactive application itself. In the practical part there is a description of the main parts of the system and the conclusions from the system testing.
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Microsoft Office Password Recovery Using GPU
Zobal, Lukáš ; Veselý, Vladimír (referee) ; Hranický, Radek (advisor)
This thesis describes the password recovery of Microsoft Office documents by expanding an existing tool Wrathion. The thesis explains the issue of digital document protection, modern encryption and hashing algorithms and rudiments of OpenCL standard. Next, the analysis of structure of MS Word, MS Excel and MS PowerPoint documents is performed, including all the versions since 1997. Using this knowledge, we create a draft and an implementation of improved DOC module for newer versions of the encryption, as well as a draft and an implementation of brand new modules for XLS and PPT formats and their newer variants DOCX, XLSX and PPTX. After that, we measure performance of the new modules and compare it with other competing password recovery tools.
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GPU Accelerated Ciphers Cracking
Schmied, Jan ; Kajan, Michal (referee) ; Veselý, Vladimír (advisor)
This work describes one - way hash functions and cryptographic algorithms . It also describes their implementation regarding DOC, PDF and ZIP files contents encryption . Subsequently , the implementation analyzis is provided . Following next, the brute - force attack procedure levereging GPU is proposed and evaluated.
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Electronic books at VŠE
Saska, Filip ; Koubský, Petr (advisor) ; Šperková, Lucie (referee)
The master dissertation Electronic books at VSE is focused on analysing the opportunities of e-books in the environment of VSE. The aim is to describe the current state of different study materials used at VSE and to explore different ways of improving them using e-book technology. The dissertation briefly describes various attributes of e-books with stress on the relevant attributes -- the possibility of inserting notes, bookmarks, multimedia and interactive content. Also the possibility of editing the content and sharing resulting changes with other students is a key attribute. The dissertation then moves on to describe the different kinds of study materials that are in use at VSE. The second half of the dissertation builds on previous analysis of the study materials and introduces a hypothetical optimal state, which could result from implementing e-book technology. This state is the answers the question of what is actually possible to achieve. The next chapter in this half is the technical analysis, which answers the question of how is it possible to achieve the suggested hypothetical state. The conclusion of this dissertation answers the questions whether the proposed solution is a viable candidate for implementation. The results of this dissertation could be used as a guideline for the project of implementation of e-book technology in the environment of VSE.
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