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Development of IP Multimedia Subsystem architecture
Hladíková, Vladimíra ; Číka, Petr (referee) ; Novotný, Vít (advisor)
Bachelor thesis topic is focused on convergence of networks and services in the environment of mobile networks with implementation of Internet Protocol Multimedia Subsystem (IMS). The first part is, devoted to reasons of design of new system, such as IMS (Internet Protocol Multimedia Subsystem) and which possibilities this architecture brings to users. I mentioned institutions and organizations, which are involved in the development of this system. In this chapter is shortly defined history of single standardised parts. In the next part is defined the IMS architecture its main part and functions. I defined which services of this system are possible to offer. To guarantee the high-quality transfer in the sites based on IP protocol is very important to guarantee quality of QoS (Quality of Service) services. So I take the aim to that in one of the next chapters. I mentioned quality assurance principles. The main factor that influences the quality of the transfer is which type of data is being transferred in IP network. The next charter is devoted authentication and authorisation in IMS network. I described the integration with Diameter protocol. The main part is devoted to VoIP (Voice over IP), the transfer of voice in IP networks. I defined the main idea of transfer of voice in IP networks. Codecs are very important for the voice transfer in IP networks, so I give a conspectus here. The next chapter gives attention to used protocols. The system could not work without them. It goes around SDP (Session Description Protocol), protocols for real-time data transfer RTP (Real-time Transport Protocol), RTCP (RTP Control Protocol), RTSP (Real-Time Streaming Protocol) - and the most important signalling protocol SIP (Session Initiation Protocol) and its integration with IMS. Finally I rated possibilities of IMS in mobile communication network and their use for VoIP. Among others I take into consideration also economical influences over the expansion of equipment supporting services with implementation IMS for general public.
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Statisticall Process Control
Neugebauer, Tomáš ; Marková, Petra (referee) ; Pernikář, Jiří (advisor)
This dissertation deals with utilisation of the method SPC in the field of engineering production. The work is outlined as instructions for introduction and usage of SPC in production. The reason for introduction of SPC is the effort to improve the quality constantly. The systematic approach was used for implementation of the very method so that the efficiency of the introduction is as high as possible. The dissertation contains three fundamental parts – theoretical part, suggestion of the process of the solution and practical implementation.
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Project Development of Integrated Testing Node
Ženíšek, Jan ; Buchalcevová, Alena (advisor) ; Kolář, Ladislav (referee)
Nowadays the development speed of new software products is a key to success and it is not important whether the aim is to make customer's urges satisfied or get ahead of one's competitors and fill the market gap. Because of the increase of development speed the demands on the saving process of software quality are increasing. There are two types of tools that are supporting the process of software quality assurance. Firstly, we talk about comprehensive testing tools of commercial character that usually include many functions, but their purchase is extremely expensive. On the other hand there are open-source tools that are available for free, they function on many kinds of operating systems and it is possible to modify them. Unfortunately their functions are basically focused on a certain subset of controlling the software quality assurance. Company TRASK solution a.s. has decided to change this current situation, so it asked competence centre Software Quality Assurance at the University of Economics in Prague in order to create Integrated Testing Node (ITN) that would combine the advantages of open-source tools. Moreover, it would offer broad range of functions as commercial solution. The purpose of this thesis is to describe relevant phases of the process of creating the Integrated Testing Node from the factual and methodical point of view. This aim is divided into partial aims included task analysis and the proposal of solving system, open-source products portfolio analysis, choice of the most convenient tools for following integration, choosing the method of information system building, evaluating the feedback from a client and the proposal of future development of this tool. As far as the biggest contribution of this thesis is concerned, it is the realisation of ITN project that can be used during information classes at the University of Economics in Prague. Furthermore, it can be used as the control of software quality in commercial companies.
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SEO analysis of the selected site
Hošták, Miroslav ; Sova, Martin (advisor) ; Böhmová, Lucie (referee)
The bachelor thesis is dealing with problematic of website optimization for search engines. The result of the thesis is a creation of a control list that includes SEO factors that would be possible to use for controlling optimization of a smaller websites that are utilised for presentation purposes of tradesmen and small enterprises or alternatively, proceed accordingly to that when optimizing. Thesis is divided into theoretical and practical part, theoretical part includes first to third chapters and practical fourth and fifth. First chapter is dealing with SEO characteristics based on multiple opinion routings, describes division of SEO techniques into ethical and unethical, comments overall significance and addition of SEO, deals with its history and describes its relationship with online marketing. Second chapter is focused on present state of SEO, deals with relevant trends of website development and describes their mutual influence with algorithms of search engines, mostly Google search engine and sketches a prognosis of future direction of SEO. Third chapter adds information about web searching, specifically discusses characteristics and division of various types of search engines, describes what factors influences indexing ability of web sites and focuses in detail on Google search engine, characterises it and explains its underlying principles. First chapter of practical part of the thesis -- fourth, directly deals with creation of controlling list that serves for SEO optimisation of web sites. Describes reasons and a mode, by which was this list compelled and explains and advocates enlistment of its specific parts -- SEO factors. Further on, deals with division, quality and weights of specific factors. Fifth chapter deals with practical application of a control list on a specific example of a selected web site. Includes a description of a selected web site and results of an analysis conducted on it. Explains inclusion of selected SEO factors into a revitalisation of a web site and rates their success. Conclusion of work is related to assessment of overall value addition of a control list, of which significance and effectivity is supported by included practical findings.
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BI controlling v české praxi
Tomek, Michal ; doc. Ing. Jan Pour, CSc. (advisor)
BI controlling (i.e. controlling based on BI applications) is an interdisciplinary area which involves management accounting and controlling theory, development of management information systems (MIS) and daily managers’ routine. BI controlling is a promising BI application area of these days. The goal of my study is to create a BI controlling methodology applicable specifically to Czech small-and-medium commercial companies. The subgoals include development of a new accounting system for profit management, assessment of several cash-flow management approaches, tailoring balance sheet to managers‘ needs and assessment of a few business indicator systems. The goal is met by generalizing methodical controlling knowledge from my consultancy practice in Czech small-and-medium commercial companies, checking up with literature, and presenting key concepts of my methodology by examples. I believe that the methodology covers all current major needs of financial management in the segment to a significant extent, which I consider the most important outcome of the study. The original results of the study include in the first place: the creation and elaboration of „object“ margin method, the derivation of a simplified formula for expected overdue time based on receivables duality concept, the complex assessment of short and long-term cash-flow and their planning, and the derivation of an approximation formula for current and fixed capital of a product or customer in a commercial company using the management by ROI method. From the implementation point of view an important outcome is the relation of the methodology to efficient information presentation, BI technology concepts and its finalization into a MDDB model. At the beginning I define the basic controlling terms, divide the analysed companies into three groups based on the ways of their financial reporting and explain the principles of Master Plan. Four main methodic chapters follow on: profit management, cash-flow management, financial position management and management by indicators. All these chapters share the same structure: first I explain the need for the management area and its concepts, then I analyse important methods in the area, next I work on these ideas into a MDDB model, and summarize. As an amendment, a short survey on benefits of BI controlling and problems I face most often on BI controlling projects is presented.
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Influence of term of winter rapeseed (Brassica napus) desiccation on yield and seed quality
Rajtmajer, Stanislav ; Bečka, David (advisor) ; Petr, Petr (referee)
Rapeseed is the world's third most important oil plant (the second seminal). It is the most cultivation and most important oil plant in Czech Republic. Winter rapeseed reaches about 85% of the harvest area of oilseeds in the country. The desiccation of oilseed crop is sphere of agricultural engineering, which is still worth discussing. The main problems are how to use the product, what dose and which dates to choose to desiccate. The results of this thesis could help to partially clarify this complex issue.
The aim of the thesis is to observe the effect of different terms oilseed rape desiccation by glyphosate on yield and seed quality.
Small-plot experiments to investigate the influence of the term desiccation of winter rapeseed were established in the years 2013/2014 and 2014/2015 on the lands of the experimental station of the Czech Agricultural University, Faculty of Agronomy Food and Natural Resources at the Červený Újezd.
In the first experimental year 2013/2014 was founded five variants in three replications (including undesiccated control). In the year 2014/2015 was founded seven variants in four replicates (including undesiccated controls). In the first experimental year was the first term desiccation 16. 6. 2014, the second year 8. 6. 2015. Subsequent periods of desiccation were a week apart.
The variety of winter rapeseed used for the experiments was a hybrid variety Rohan. The desiccating agent was used Dominator active substance glyphosate. The dose of
4 l / ha + 200 l H2O.
For all samples, both experimental, years yield was determined, the weight of a thousand seeds and oiliness. For desiccated variants were carried out pre-harvest analysis for the determination of solids in pods. Further, all harvested samples taken for laboratory germination test (Determination of germination) ISTA according to the methodology. The results of the experiment sprouting were statistically analyzed using ANOVA analysis of variance. Differences between mean values were evaluated by Tukey test, the computer program SAS at a significance level of p = 0.05.
Effect of desiccation term influences of winter oilseed rape seed quality in terms of weight and thousands of seeds in terms of oil content. Too early desiccation (46 to 39 days before harvest) HTS reduced by 7-17% and the oil content of 2-4% of the overall average. Oiliness of the observed characters minimum interference term desiccation. Desiccation in the optimum date (17 days before harvest) increased oiliness of 1-6%.
Influence term desiccation oilseed rape also greatly influences seed yield.
Too early desiccation (46 to 39 days before harvest) reduced the yield by 11-14%. Undesiccated control in both years achieved the highest yields, increase yield by 5-12%. Desiccation in the optimum date (17 days before harvest) increased the yield of attempts by 5-6%.
The term desiccation of winter rapeseed, also significantly affects the vitality of seeds, where very reduces energy germinating seedlings in the first days. The term desiccation, however, does not affect overall seed germination. Too early desiccation (46 to 39 days before harvest) EK2 decreased by 12-40%, EK3 decreased by 4-24%, 3-4% EK4 and extended MGT of 7-15%. In the first experimental year was the most vital option undesiccated control (EK2 = 50.4% = 91.3% EK3, EK4 = 97.9%). In the second experimental year was the most vital seeds of the optimal term desiccation, (Sixth term, 17 days before harvest) = 68.9% EK2, EK3 = 98.2%, EK4 = 100%. Seed samples of 2014/15 had a higher overall vitality of seeds, than samples from 2013/14, the overall vitality is probably worse given year old and transsilaged seed.
The results of the two-year experiment that term desiccation affects the quality of seeds, the yield of seeds and vitality of seeds. Pre-analysis was determined optimum solids content in siliques desiccated samples to values of 40-50%. Like most technology seems to desiccation in the optimum date (17 days before harvest) and agro technology without desiccated vegetation. As the least appropriate technology seems very early desiccation (46 to 30 days before harvest).
The first scientific hypothesis: Premature desiccation reduces seed yield, oil content and HTS. Yes, the hypothesis was confirmed.
The second scientific hypothesis: Desiccation made in the correct term do not affect the quality of the seeds (oiliness and HTS). Yes, the hypothesis was confirmed.
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The Analysis of the impact of varieties and seed treatment on selected parameter seeds of poppy (Papaver somniferum L.)
Míča, Luděk ; Kuchtová, Perla (advisor) ; Miroslava, Miroslava (referee)
Czech Republic is one of the world's leading producers of the poppy seeds. Concerning the growing field area of poppy, the Czech Republic is lead producer of the poppy seeds at the international level (Vašák, 2010; Cihlář, 2012).
Poppy seed is very sensitive on many internal and external factors during cultivation, especially in the beginning of germination and emergence. At present, there are not registered preparations available for seed dressing for poppy seed in the Czech Republic (Prokinová, 2006). However, there has been done many experiments based on testing of natural substances (eg. humates and plant extracts), microorganisms and especially the application of soil fungi in seed treatment recently
The aim of this study is to evaluate the effect of selected regional varieties of poppy cultivation and seed treatment to yield parameters of poppy seed both individually and in combination,. For the thesis was essential to describe the suitability of varieties for growing in organic and integrated agriculture in relation to the efficiency of production. Evaluation of the seed quality of the varieties was carried out in the field as well as under laboratory conditions. Before sowing, seeds were treated by preparations Gliorex and TS Osivo, untreated variant has been used as a control.
During plant cultivation were monitored shape of the plants, the degree of infestation, weed control and other treatments based on natural substances. Neem-Azal was used as the pest regulator. The second variant was treated by foliar application of TS Květa.
Seeds harvested from variants of our trial were tested under laboratory conditions for comparison of differences between varieties. The tests also revealed the seed infestation and what percentage of the seed is viable. The last evaluation was carried out on the basis of the weight of thousands of seeds (HTS), which reflects the yield determined by the selected seed treatment.
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Analytical evaluation of drugs using chromatographic methods IV.
Spáčilová, Lenka ; Mokrý, Milan (advisor) ; Kastner, Petr (referee)
Analytical evaluation of drugs by using chromatographic methods IV. Diploma Thesis Lenka Spáčilová Charles University in Prague, Faculty of Pharmacy in Hradec Králové Department of Pharmaceutical Chemistry and Drug Control Heyrovského 1203, Hradec Králové Rapid analytical methods are described to control quality of honeys, concerning residues of acaricides applied in hives to prevent the mite Varroa jacobsoni infestation. Tau - fluvalinate was analysed by the use of a SGX RP-18C column, 5 µm, a acetonitrile : water (40:60) mobile phase, flow rate of 1 ml/min and a UV detector set at 254 nm. An internal standard was used for quantitative determination. A calibration curve was constructed and verified, by means of which the concentration of tau - fluvalinate in honey can be determined. The elaborated method was validated by detection limit determination.
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Optimizing controller settings in terms of quality of work gasoline engines E85
Kotek, Tomáš ; Pexa, Martin (advisor) ; Malaťák, Jan (referee)
The work deals with optimizing the operation of spark ignition internal combustion engine on fuel E85. The theoretical part is devoted to the issue of biofuels in terms of production, distribution and use in internal combustion engines.
The experimental part is devoted to the design and verification of the additional control unit (ADU) which solves the optimisation of operation unmodified engine on E85.
The first part of the experiment is dedicated to the design and construction of ADU with aim to faultless operation of the engine on E85.
The second part of the experiment was devoted to optimisation of engine operation in terms of fuel consumption using dynamic changes of the injectors opening time. Part of the experiments was an evaluation of emissions production and impact on the performance parameters of the engine.
The final part of the experiment evaluates the achieved results at the various settings strategy of ADU and compares them with results during engine operation on prescribed fuel N95.
By the dynamic change of the injector opening time were reached decrease in fuel consumption by about 5%, reduction in CO production by around 70%, approximately fourfold increase in the production of NOx emissions and about 50% decrease in production of particulate matters.
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Surface runoff generation and its erosion processes
Kalibová, Jana ; Kovář, Pavel (advisor) ; Štibinger, Jakub (referee)
Research of model simulations of hydrological data for water resources studies and field and laboratory experiments testing the effectiveness of erosion control geotextiles using rainfall simulators is summarized in this dissertation. The results of the research have been used to suggest a water regime optimisation in the catchment of a former mining pit Medard-Libík. Although agricultural and forestry reclamation measures have been applied, rill erosion still appears on some slopes within the catchment. The soil loss and sediment transport result in the deterioration of the crop yield, cause damage on the road and drainage systems and also influence the quality of water in the lake arising by flooding the former mining pit.
The first part of the dissertation provides a review on surface runoff and its erosion processes. Next, bio-technical erosion control measures on slopes are summarised. The third part of the dissertation is devoted to a simulation of surface runoff on a model slope in the Medard Catchment. The main aim was to test whether the KINFIL model is suitable for the simulation of the effectiveness of erosion control geotextiles and suggest an appropriate erosion control measures for the eroded slopes in the Medard Catchment.
The KINFIL model seems to be a useful tool to quantify the effectiveness of individual erosion control products and measures in order to find the most convenient option. The simulations carried out in the dissertation corresponded to the results of field and laboratory experiments testing the impact of geotextiles on surface runoff and soil erosion published earlier.
A well-balanced rainfall-runoff regime in the Medard Catchment would increase the stability of the landscape, reduce the cost of restoration of the damage caused by erosion to road and drainage systems and improve the water quality by elimination of the sediment transport. The results of this dissertation may be offered to the public administration or private stakeholders to control erosion within the reclamation of areas affected by mining activities.
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