The thesis deals with assessment of the effect of pH value, temperature, concentration of toxic forms of nitrogen, concentration of dissolved oxygen and other factors on the process of start-up of the nitrification reactor serving for biological pre-treatment of fugate. Another objective of this thesis is to assess the effect of the conditions prevailing in the reactor on the efficiency of transformation of N-ammon to oxidized forms of nitrogen. During the system start-up, nitrifying activated sludge sampled from the regeneration zone of the activation process at the Central Waste Water Treatment Plant in Prague was used as inoculum. The laboratory model with suspended biomass consisted of a nitrification reactor, the working volume of which was 1.5 l in the first part of the experiment and 5 l in the second part of the experiment. The system start-up lasted from 17 April 2015 to approximately 12 May 2015 (days 0 to 32). N-ammon concentration in the inflow ranged from 1660 mg/l to 3000 mg/l. Volume loading of ammonia-nitrogen in the reactor ranged from 0.1 to 0.4 kg/(m3.d). During the experiment, the dissolved oxygen concentration ranged 3.6 to 6.8 mg/l, and the temperature range was 23 C°. The performed experiment confirmed that it is possible to start up and maintain longterm the nitrification process also in fugate from a biogas station. It has been proved that despite the extreme characteristics of fugate, the nitrification process can be incorporated from the first days of the reactor operation. From the beginning of the experiment, N-NO3 was abundantly generated. N-ammon oxidizing efficiency ranged between 90 and 99 % and influenced particular by pH values.

This diploma thesis deals with the implementation of ICT projects according to the third release of internationally respected IT infrastructure library (ITIL v3). To be specific, it is about two projects executed by the Renault company -- ToIP which deals with the voice transmission using the data network and S.P.T. concerning workstations' standardization. The objective of this thesis is to describe the implementation process of both projects into the business life and to evaluate the processes and outcomes based on the ITIL v3 recommendations. This goal will be delivered by studying available theoretical materials, authors personal work experience from the position of IT support in Renault and by confrontation praxis with theoretical knowledge. The main benefits of this work are the evaluation of the implementation process correctness according to the ITIL best practices, eventual deficiencies revealing and possible improvement propositions. This work is divided into theoretical and practical part. First, theoretical part is then divided into two captures -- the opening section describes the ITIL v3 best practices with the main focus on Service Transition and Service Operation. Second section is dedicated to the VoIP (voice over internet protocol) technology, part of which is also theoretical knowledge of voice transformation into the digital form, components of VoIP network and the most frequently used architectures. Second, practical part focuses on the projects` implementation. In conclusion the implementation process will be confronted with the ITIL v3 and based on detected failures possible improvements will be proposed.

This thesis deals with locating station in the digital television broadcast over the Internet Protocol. The aim of this thesis was to develop a general model for the location of stations in the system of internet TV. This work deals with the five known methods for locating stations in distributed systems, which compares as many criteria, such as coordinates of computation speed, accuracy of results. Based on the evaluation was selected optimal method, which has been incorporated into the simulation program IPTV and tested. The result of this work is the source code of the implemented methods.

This thesis is focused on methods for nodes localization in Internet using latency prediction in synthetic coordinates systems. Thesis also deal with methods, which latency prediction between nodes is based on other systems. Among such a methods particularly belongs King, which uses DNS (domain name service). Furthermore, thesis deal with relevance of overlay networks in latency prediction and their use for different services. Practical part of this thesis concentrates on method for latency prediction in synthetic coordinate system Global Network positioning. There were made two programs for counting coordinates of landmarks and hosts in this system. Measurements and calculations made in this thesis, are focused to determine accuracy of latency prediction of this method and their evaluation is made at the end of thesis.

The topic of the thesis is biogas stations - renewable energy sources. This thesis focuses on energy from biomass which is generated inside stations, and on appropriate use of energy. It deals with thermal energy that is produced as a waste product inside the biogas stations. The main objective is to evaluate the effectiveness of the biogas stations as a source of heat for the municipalities in southern Bohemian and create evaluation criteria of suitability of using heat from biogas stations in specific communities.

The thesis is focused on economy and different ways how to use the waste heat which is created during combustion of biogas in cogeneration units. The utilization of residual heat enables to significantly increase the energetic efficiency of existing and newly built biogas stations. There is the description of the biogas station in Třeboň, Pleše and Kardašova Řečice and the technical and economic analysis of utilization of biogas in the place of heat consumption. These biogas stations have different methods how to use the waste heat. In Třeboň, there is this method: made biogas is transported by gas pipeline to the place where it is used. By contrast, the heat is used in the place where is created, but the heat is used for different purposes in Pleše and in Kardašova Řečice.

This thesis deals with predicting the latency between two network nodes, such as the two stations, two servers or server and station. The main reason for adoption of effective latency prediction techniques is the elimination of network load caused by unnecessary repeated transmissios or by direct measurement of the latency. Of the many proposed methods of latency estimation, this thesis is focused on methods using artificial coordinate systems with primary focus on the Vivaldi algorithm. Characteristics of the latency prediction methods and properties of various coordinate systems used in practice are evaluated. The issue of the number of dimensions of space defined only by the latency matrix between nodes is also mentioned. Furthermore, some other systems, based on logical clustering of nearby nodes, are mentioned. Description of simulation software VivaldiMonitor developed as part of the thesis is included. The primary purpose is analysis of the behavior of overlay networks implementing Vivaldi algorithm with less than a few hundred nodes. The Vivaldi algorithm is assessed by several simulations carried out using the aforementioned software.

The thesis target is to design construction treatments resulting in improving the passenger railway transport in this section. Planned modernization and electrification will change the transport nature significantly, which calls for an examination of the existing track possibilities. The task was to focus on the regarding stations as a crucial troughput aspect and on the travel quality improvment by minor construction adjustments. I have examined walking distances, designed a new Troubelice - Centrum stop. By convenient platform shifts higher velocities criteria were met. All precautions respect the wheelchair access. The station design allows higher velocities operation and do not restricts current use.

This diploma thesis focuses on biogas stations used in agriculture. The thesis is divided into two parts - the literary research and the practical part. The first part of the thesis introduces the overall description of the biogas, its production, definition, and use. Moreover, the input and output raw materials of a biogas station are described. Subsequently, the operation and the chronological procedure used during the biogas production and resulting electricity in biogas station are introduced. The practical part of the thesis focuses on the actual situation in Europe and the development of both, the biogas stations' construction and the production of electricity from biomass. This part also analyses preferred raw materials of selected countries of the EU. Electrical capacity (IEC) and a particular state subsidy policy are also mentioned in the thesis. The research also includes particular examples of a good attitude and use of biogas stations in practice. In detail, the thesis deals with how these topics are dealt with in selected countries. In the Czech Republic, Slovakia, Germany, and Poland. In conclusion, according to the ascertain data, the overall summary and prognosis for the future are introduced.

The aim is design of Ledeč nad Sázavou railway station renovation. This renovation has to satisfied current traffic and valid legislation, especially entrance for persons with reduced mobility. There is the new platform at Chotěboř railway station according to current legislation. Change of trackage was in a very small way.