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Implementation of NIS Backend for SSSD
Nykrýn, Lukáš ; Burget, Radek (referee) ; Zelený, Jan (advisor)
Tato práce se v první části zabývá představením technologií a nástrojů pro centrální správu a přihlašování uživatelů v GNU/Linux. Ukazuje využití adresářových služeb v síťové infrastruktuře, konkrétně služby NIS a její porovnání s dnes pravděpodobně nejrozšířenější adresářovou službou LDAP. Dále práce popisuje proces autentizace na klientských stanicích, konkrétně použití PAM a NSS a možné rozšíření celého systému zavedením cache díky démonu SSSD. Druhá část popisuje návrh a implementaci NIS provideru pro SSSD.
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Comparison of Properties and Performance of Object Oriented Databases
Kozák, Daniel ; Burget, Radek (referee) ; Zelený, Jan (advisor)
In this thesis, the reader learns basic models, which are use for storing data in database sys- tems. Next I describe a way, how to store objects in Java Language and explain expressions like object-relational mapping, reflection and introspection. After that, I will introdice some of existing implementation, which are use for storing objects in Java. Next I will explain testing methodology and make benchmarks of various implementation. In the end I will analyze a results of these benchmarks.
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Datamining of Relevenat Information from WWW with Using Social Networks
Smolík, Jakub ; Zelený, Jan (referee) ; Samek, Jan (advisor)
This thesis focuses on solving problems related to searching of relevant data on the internet. In text is presented possible solution in form of application capable of automated extraction and aggregation of data from web and their presentation, based on input key words. For this purpouse there were studied and discribed possibilities of automated extraction from three chosen data types, mainly used as data storages on the internet. Furthermore it focuses on ways of data mining from social networks. As a result it pressents planning, implementation, realization and testing of created appliation which can easily find, display and let user easy access searched informations.
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New Design and Implementation of RPM Database
Zelený, Jan ; Smrčka, Aleš (referee) ; Peringer, Petr (advisor)
Package management systems are very effective and comfortable solution of installing, maintaining and erasing software from computer. Their basic idea is that all information about installed software is kept in one place and is managed by common utilities. RPM database is such place, where information are being kept. Currently used solution is obsolete and needs some improvements. This thesis analyzes current solution, possible alternative options and based on this a new database design is proposed. A prototype implementation is also included and it is compared with current solution.
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Mobile System for Travelling Support
Blatný, Petr ; Zelený, Jan (referee) ; Očenášek, Pavel (advisor)
This master's thesis describes process of design and development of a mobile system for travelling support. Application named TravelHelper is developed for Android operating system therefore is implemented in Java programing language. In thesis's text is described used platform and its primary construction blocks. Main function of application is a journeys' diary, which allows storing activities of a trips. Application also allows backing up and sharing journeys on a social networks. Other functions of the application are searching for interesting places nearby, manager of travel expenses, translator, currency converter, and a packing list.
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Automatic Kerberos Key Rotation
Kos, Ondřej ; Henzl, Martin (referee) ; Zelený, Jan (advisor)
Práce je zaměřena na autentizační systém Kerberos a jeho správu, převážne v oblasti Keytab souborů. Práce popisuje základní součásti celého systému, které jsou v těchto operacích zapojeny, a jejich hlavní vlastnosti. Částečně je také popsán administrační systém FreeIPA, jenž pro autentizaci uživatelů Kerberos využívá. Hlavním cílem bylo vytvořit aplikaci schopnou automaticky a bez uživatelova přičinění rotovat klíče Kerbera a zvýšit tak úroveň zabezpečení celého systému pro případy odposlechů komunikace.
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Progressive Meshes
Zelený, Jan ; Beran, Vítězslav (referee) ; Sumec, Stanislav (advisor)
There are many highly detailed 3D objects in computer graphics today, which expect high-tech hardware equipment for rendering, storing or transmitting. One of many possible solutions of these problems is progressive mesh. It is a kind of representation of 3D objects, which can be real-time modified in sense of level of detail (LOD). Progressive meshes can also modify effectively their surface, and create geomorphs between two different levels of detail. Progressive transmitting and compressed storing are also possible with this feature.
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Development of a heterogeneous catalytic system using multiply charged cyclodextrins and proline-based organocatalysts
Zelený, Jan ; Jindřich, Jindřich (advisor) ; Baszczyňski, Ondřej (referee)
Cyclodextrins are a class of organic molecules consisting of a cyclic system of α(1→4) linked glucose units. These compounds possess a range of interesting properties and can be derivatised to suit various industrial and scientific purposes. Among their derivatives are so- called multiply charged cyclodextrins, the development and application of which is an essential part of our group's research interest. These cyclodextrin derivatives are capable of binding electrostatically to different solid sorbents, such as silicagel or alumina. This electrostatic interaction is mediated by an array of permanently positively charged moieties which are covalently attached to the primary rim of a cyclodextrin unit. The free secondary rim then offers the possibility of further derivatisation and functionalisation of this system. The resultant cyclodextrin derivative represents a modular scaffold which can be used to immobilise different functional components. This project focuses on the application of this system to the immobilisation of a Hayashi- Jørgensen-type catalyst for the purposes of heterogeneous catalysis. The work includes the assembly of the of the chosen catalytic system from its precursors and also the synthesis thereof. Furthermore, the resulting supramolecular system is tested for its catalytic...
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The preparation and characterization of polymeric, enzymatically cleavable carriers for cancerostatic drugs
Zelený, Jan ; Etrych, Tomáš (advisor) ; Ječmen, Tomáš (referee)
As the development of cancerostatic drugs progresses it is becoming necessary to contemplate the question of how to deliver these drugs, which themselves tend to exhibit carcinogenic properties, effectively and accurately to the affected tissues and thus to circumvent their destructive effects upon the healthy parts of the organism. One approach to delivering drugs selectively to cancerous tissues is to make use of some of the specific properties which these tissues tend to possess, one of which being the so-called enhanced permeability and retention effect (EPR effect). This effect, which will be further discussed within this thesis, allows for macromolecules that are too massive to pass from the bloodstream into healthy tissue, to exit the blood vessels of cancerous tissue and to accumulate there. Therefore, a drug molecule can specifically enter cancerous tissue along with a suitable macromolecule, to which it is conveniently attached. If, moreover, the given drug is connected to the carrier molecule via an enzymatically cleavable spacer, it is possible to make use of lysosomal proteases (such as cathepsin B, which is overexpressed in some cancer cells) in order to attain its detachment from the carrier molecule and its subsequent activation. This bachelor thesis focuses on describing the...
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The amount of physical activity within a week's routine of football players at grade level.
Zelený, Jan ; Kokštejn, Jakub (advisor) ; Frýbort, Pavel (referee)
BIBLIOGRAPHICAL IDENTIFICATION Title of Bachelor work: The amount of physical activity within a week's routine of football players at grade level Place of work: UK FTVS Author: Jan Zelený Field of study: Physical education and sport Head of work: Mgr. Jakub Kokštejn, Ph. D. Defence year: 2013 Abstract Aims: The main aim of the thesis was the analysis of the amount of one week's physical activity (PA) of boys at adolescent age within regularly exercised PA. Methods: One week's routine PA was monitored by methodology which is based on measurement of the energy output, amount of steps and hops, and load intensity by ActiGraph GT3X accelerometer. Conclusions: The research showed that average daily amount of steps within selected group of young people was 9284. Furthermore, the research showed that the average energy output was significantly lower, i.e. 30% lower than the specified health limits. At the same time, the recommended values of PA of middle and higher intensity were surpassed. At the last part of the thesis, the results were compared with the health recommendations for particular age category and the specified hypotheses were then verified. Key words: Physical activity, adolescent, accelerometer, ActiGraph, football
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