|
Plant alkaloids, their usage and abuse during the histoty of humanity
Marečková, Michaela ; Pavlasová, Lenka (referee) ; Skýbová, Jana (advisor)
The aim of this bachelor work "Vegetable alkaloids, their usage and abuse during the history of humanity" is to demonstrate the basic toxicological and pharmacological thesis to readers, furthermore the history of usage and especially abuse all the vegetables that contain alkaloids. One of the important parts illustrates the selected representative toxic plants that occur and can be found in our lands, in addition their usage from the antique periods till today. This work also focuses to the misuse of these vegetables in the area of poisoning and on the other hand their usage in the traditional medicine, homeopathy and also in the modern medicine. The information in this work can practically be used, primarily in the speciality education, such as toxicology, pharmacology, pharmacognosy on
|
|
Alternative use of biomass
Hornoch, Radek ; Radil, Lukáš (referee) ; Bartošík, Tomáš (advisor)
This bachelor´s thesis describes the options of the processing biomass on the nobler fuels and their using. In the first part are described the sources of biomass so the option targeted grow crops or use different convenient wastes. The second part contains a description of the technology, how to revise the biomass to synthesis gas, methanol, ethanol, biodiesel and biogas. They are given yields on already mentioned high-grade fuels from individual crops and technologies. The third part deals with device where it is maybe to use nobler forms of fuels. It is going about traditional heating plant with back pressure or condensing extraction turbine, steam heating plant, a cogeneration unit with micro turbine, a cogeneration unit with combustion engine and a cogeneration unit with fuel cells. At the end of the chapter is a comparison of the different devices when using different fuels.
|
|
Use of electrophoretic methods in the analysis of pharmaceutically important compounds
Šafra, Jiří ; Pospíšilová, Marie (advisor) ; Jokl, Vladimír (referee) ; Ušelová, Kateřina (referee)
The thesis deals with the use of electrophoretic methods in the analysis of pharmaceutically important compounds. In the theoretical part, the principles of basic techniques (like CZE, MEKC, ITP etc.) as well as on-line preconcentration methods (stacking, sweeping, ITP-CZE, tITP) are described. The first part of the experimental work deals with the use of on-line sample preconcentration techniques (ITP-CZE and LVSS with polarity switching) for the analysis of the complex matrices of plant origin. 1. The on-line ITP-CZE was used for the separation and quantification of phenolic acids derived from benzoic and cinnamic acids in methanolic extract of Epilobium parviflorum. BGE-S-BGE electrolyte system was used for the separation. The leading electrolyte in the ITP pre-separation step was 0.01M HCl, 0.02M imidazol, 0.2% HEC with pH 7.2; the terminating electrolyte was 0.01M HEPES with pH 8.2. The background electrolyte in the electrophoretic step contained 25mM MES, 50mM TRIS, 30mM boric acid, 10mM α-cyclodextrine, 0.2% HEC of pH 8.3. A single analysis took 25 min. No special sample pretreatment was required. 2. The next work focused on the application of a stacking-CZE method used for the separation and determination of eight phenolic acids in an extract of Epilobium parviflorum. Large-volume sample stacking...
|
|
Regulation of Weeds in Grown Hybrids of Maize
NAHODIL, Antonín
The degree work describes the biology and morphology of the weed plants, which are found in maize vegetation most frequently, as well as their spreading and possible regulation. Based on the findings acquired, the methods of chemical and mechanical regulation are described. The degree work describes briefly both the plant of maize itself and the process of its growing. The attempt took place on the school farm of the Agricultural School in Tábor; a small plot attempt was carried out at the same place. The frequency of the occurrence of weed species on the selected small plots was evaluated in the hybrids of maize (Zea mays). The degree work contains data on the extent of the occurrence of weeds on individual plots, on which the individual hybrids of maize were compared with one another. It also includes an economic evaluation and possible measures to eliminate the spreading of weeds.
|
|
Approach to the nuclaer safety of the 3rd generation nuclear reactors
Pavlíček, Michal ; Kolář, Jaroslav (referee) ; Kolář, Jaroslav (referee) ; Matal, Oldřich (advisor)
The main target of the master´s thesis is reviewing the generation III nuclear reactors in term of the nuclear safety. At first we have to learn some theory of the nuclear safety in order to understand safety systems of the generation III nuclear reactors. Therefore the thesis is divided into two parts. Legislative and technical approaches to nuclear safety are mentioned in the first part. Regulatory bodies, whose task is to supervise nuclear safety in the nuclear power plants, belongs to the legislative approaches. There are defined terms such as defence in depth, redundancy, diversity, etc. There are mentioned methods to assessing nuclear safety – deterministic and probabilistic methods, especially probabilistic methods, for which a simple example is provided. There are also mentioned active and passive safety systems and their significance for nuclear safety and inherent safety too. There is an example of the function of the active and passive safety systems of the EDU nuclear power plant in conclusion of this issue. The second part deals with description of the selected nuclear reactors in context of the construction of the new units of nuclear power plant in Temelín. The nuclear reactors from companies, which applied for the public tender opened by ČEZ, a. s., for the construction of the ETE 3+4. Thus, the nuclear reactor MIR-1200 by ATOMSTROYEXPORT (Russian Federation), the nuclear reactor AP1000 by WESTINGHOUSE (USA) and the nuclear reactor EPR by AREVA (France) are taken into account . Comparison of the generation II and these generation III+ nuclear reactors necessarily belongs to this master´s thesis. These the generation III+ nuclear reactors are compared with the nuclear reactor VVER 440 (EDU) and in particular with the nuclear reactor VVER 1000, which is operated in the nuclear power plant Temelín. The final chapter contains generally appraisal of the whole problem.
|
|
A Floristic Study of Petřín
Macháčková, Jana ; Dostál, Petr (advisor) ; Skýbová, Jana (referee)
The first part of the thesis describes culture-historical and natural features of the gardens at Petřín. The reader learns about the protected area in the upper part of the gardens and crucial influences of human activity in this area in the past and present. The second part deals with the results of a dendrological survey carried out in the Kinský Garden and Nebozízek and floristic research of the nature monument Petřínská skalka in the period between spring 2004 and autumn 2005. The results of the mapping have been recorded in table files that relate to attached documentary maps. In the discussion, I compare the findings of the thesis to the results of inventoried materials and suggest possible causes of the differences obtaining between the two lists. In the didactic part, I suggest a way of using this area for educational purposes. It contains two tracks - one focused on timber species and the second on complex cognition of nature. Worksheets were for both the tracks. The text also includes documentary photographs of some monitored timber species and plants. Powered by TCPDF (www.tcpdf.org)
|
|
Initial measurement of property, plant and equipment according to IFRS in comparison of US GAAP and czech accounting legislation
Rybářová, Petra ; Vašek, Libor (advisor) ; Fischer, René (referee)
This diploma thesis is about long-lived assets. The primary objective is to create the comprehensive view regarding specifics of initial measurement of production, plant and equipment and measurement of subsequent costs in accordance with IFRS in comparison of U. S. GAAP and czech accounting legislation. Specifics of measurement are based on kinds of acquisition. The diploma thesis is divided into three main sections. Features of long-lived asset according to IFRS, U. S. GAAP and czech accounting legislation are in the first section. The second section contains initial measurements of production, plant and equipment depended on types of acquisition primary in accordance with IFRS in comparison of U. S. GAAP and czech accounting legislation, one by one. The third section comprises measurement of subsequent costs.
|
|
Study of problem solving of IT networks in heating plants in a sphere of activity E.ON CR
Plojhar, Vladimír ; Voříšek, Jiří (advisor) ; Přívozník, Ladislav (referee)
The main goal of this document is to create a comprehensive IT management summary and technological summary concerning the situation in IT and system coverage of E.ON heating plants in the Czech Republic. Real data were used from the Teplárna Tábor a.s. (TTA) and Teplárna Otrokovice a.s. (TOT) heating plants. The first part of this document contains a description and evaluation of the ICT systems of TTA and TOT, data collection management, coverage of IT support for the systems, creation of application architecture for the individual companies and links between the companies. The second part defines the goals and strategies of the companies as well as an evaluation of performance. Performance was evaluated using Gartner Networking Maturity Model methodology. The third part of the document proposes a possible future situation and outlines specific proposals to increase IT performance and stability while respecting the strategic goals of E.ON, the majority owner. The document is concluded with a brief Summary.
|
|
Nuclear Fuel Cycle of Dukovany NPP
Dudáš, Michal ; Foral, Štěpán (referee) ; Katovský, Karel (advisor)
The goal of this bachelor’s thesis is to introduce the nuclear fuel cycle of nuclear power plant Dukovany focusing on its middle part. It describes the methods of loading fuel assemblies in-out and out-in, the differences between continual (on-load reactors) and campaign kind of fuel cycle. There are briefly described individual types of fuel used on nuclear power plant Dukovany from the start to recent days. It is further followed by the external fuel cycle. The front end describes more about mining, enrichment and fabrication. There are also few different separation methods of uranium described. The back end deals with different ways of spent fuel storage, spent fuel pools, and dry cask storage as well as ultimate disposal. The paper also contains brief overview among the most known nuclear reactors with the short descriptions of its own nuclear fuel cycles. It is further followed by description of fuel cycles with different length, focusing on different types of fuel and different loading methods. There is also a possible concept of outages for nuclear power plant Dukovany considering few different long lasting campaigns. The paper contains economic assessment considering the simplified conditions. It also deals with pros and cons of individual cycles focusing on organization operating and spent fuel storage.
|
|
Recovery of Energy from Municipal Wastes
Šíma, Kamil ; Bébar, Ladislav (referee) ; Jícha, Jaroslav (advisor)
The topic of the diplome thesis is draft of the waste-to-energy plant for municipal waste with cogeneration of heat. Basic specification of project: Waste-to-Energy plant is facilitated by two rotary kilns of type operating in parallel. Further flue gas leaving the post-combustor enters a multicyclone unit to separate substatial portion of fly-ash. Heat of flue gas at the temperature of 1000°C generates superheated steam in a Heat Recovery Steam Generator (HRSG). Dry sorption process is appllied for flue gas treatment. Specifically sodium bi-carbonate is used for it. Products of reactions and remnants of dust are separated by a baghouse. Superheated steam, generated by two HRSG, presents the inlet stream of a condensing steam turbine with steam extraction. The diploma thesis contains calculation of major devices and basic economical and financial statement of project.
|
guest ::
