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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
161

Vliv mebránové separace bioplynu na stávající provoz bioplynové stanice / Impact of Membrane Separation of Biogas on Biogas Station Operating Conditions

Svoboda, Jan January 2016 (has links)
The thesis deals with the issue of removing carbon dioxide from biogas using membrane separation. Addresses the impact of the implementation of a small research facility at the existing operation of the biogas plant. Assessment of the impact on traffic is solved in terms of technical and economic.
162

Anténa a nízkošumový zesilovač pro pásmo L / L-band antenna and low noise amplifier

Kučera, Ondřej January 2017 (has links)
This master thesis is dealing with a system for receiving meteorological images from satellites placed on lower orbit. Furthermore it gives basic information about satellites NOAA, METOP and FY. It also includes derivations of equations, that define minimal requirements for receiving antenna and LNA. From reached parametres, energetic balance for connection of the satellite and Earth is calculated. The main part of the master thesis is designing of low-noise amplifier for L band. LNA is implemented on the substrate FR4 and Arlon DiClad 870, circuit is designed with elements of parametres, which are spread out or concentrated. The last part of the thesis describes design of antenna for reception of meteorological images.
163

Úprava kalů z čistíren odpadních vod před jejich dalším využitím / Treatment of Waste Water Treatment Sludge Prior of its Following Utilization

Pěček, Jan January 2010 (has links)
Industrial production of cellulose is an energy intensive process. Businesses aim to utilized as much input energy, materials as possible while minimizing the waste as well. In addition to the main product – cellulose and large amounts of organically polluted water which is subsequently treated in waste water treatment plants. This PhD thesis deals with formation of suitable mixing formula for sludge from cellulose production and available materials (waste) from close neighborhood of Biocel Paskov a.s. so that well balanced cofermentation products are achieved. This mainly involves grass from lawn maintenance, grass ensilage, potato peels, and leftovers from vegetable processing. Fermentation processes (both mesophilic and thermophilic) of prepared fermentation products were conducted in semi-continuous and continuous laboratory fermentation units. Reduction of organic mass depending on residence time was closely observed as well as production and quality of biogas along with quality of output digestate. Course of process behaviour under controlled pH was tested. Results of particular tests were integrated into graphs. Conclusion of the thesis presents balance scheme drawn for selected variants, and design of real fermentation station with individual buildings, operations, basic machinery and equipment description including investment costs. Financial calculation and expected investment return was conducted in two variants – without subsidies and including subsidies from Operational Programme Renewable Sources of Energy.
164

Optimalizace distribuce vzduchu bazénových hal / Optimization of air distribution in swimming pool halls

Blasinski, Petr January 2014 (has links)
The work deals with solution of air distribution in swimming pool halls with regard to the dominant influences, which are creating a microclimate in these areas. Results of this work are graphs with evaporation of water and chemicals dependents on changing boundary con-ditions. There is followed with optimal design of air distribution, which is reflecting the critical specific effects of swimming pool halls.
165

Biochemické parametry energetického metabolismu v mozkomíšním moku u zánětlivých a nezánětlivých onemocnění CNS. / Biochemical parameters of energy metabolism in cerebrospinal fluid in inflammatory and non-inflammatory CNS diseases.

Bořecká, Klára January 2020 (has links)
The basic examination of the cerebrospinal fluid provides a quick orientation in the diagnostic algorithm of CNS diseases about the nature of the pathological process. The current evaluation of cytology and biochemical parameters of glucose metabolism reports about the cells present and at the same time about the level of their activation. The aim of the work was to investigate the relationship between biochemical and cytological findings in cerebrospinal fluid in a large data set (n = 8 178), or confirm the hypothesis of a significant alteration in the Coefficient of Energy Balance (CEB) in cytological classes typically accompanying oxidative burst of phagocytes. CEB was subjected to analysis and comparison with other energy parameters (lacto-glucose ratio, gluco-lactate ratio, concentration of lactate and glucose in cerebrospinal fluid). The relationships between blood and cerebrospinal fluid glucose and lactate concentrations were investigated. CEB values were statistically significantly different in cytological groups, which reflected purulent inflammation, tumor involvement or infection by potential intracellular pathogens, the hypothesis was confirmed. Other energy parameters excluding glycorrhachia distinguish these cytological groups as well as CEB. There are inaccuracies in the derivation...
166

Stavebně technologická příprava dopravního terminálu v Peci pod Sněžkou / Construction and Technological Preparation of the Transport Terminal in Pec pod Sněžkou

Černý, Jiří January 2022 (has links)
The diploma thesis solves construction and technological preparation of the transport terminal in Pec pod Sněžkou. The content of the diploma thesis is a techical report on the construction technology project, the coordination situation, the time and financial schedule, the project of building site, selection of machines, time schedule for the main building object, plan for securing material resources for the main building of the transport terminal, technological prescription and inspection and test plan for monolithic ceiling structures. Another assignment part contains a plan for safety and health protection at work on the construction site and specialized topic is a noise study.
167

Československo-argentinské hospodářské vztahy v letech 1945-1989 v materiálech českých archivů / Czechoslovak-Argentinian Economic Relations in the years 1945-1989 in the material of Czech archives

Kupka, Jiří January 2015 (has links)
This thesis aims to present and analyse economic relations between Czechoslovakia and Argentina in the years 1945-1989 (i.e. a period that almost precisely coincides with the duration of the Cold War. The work focuses on a historical analysis of primary sources and archival documents of the Czechoslovak Federal Ministries of Foreign Affairs and Foreign Trade. This material was selected in light of the rarity of secondary literature devoted to this area. To a certain extent, this is a pioneering work, especially given the fact that the archives of the Federal Ministry of Foreign Trade have not yet been declassified and still enjoy only limited usage (processing) in a single publication. One primary function of foreign trade with the Latin American countries (with the obvious exception of Cuba) was to foster good relations between South America and Czechoslovakia during the Cold War. The study of this use of trade as a foreign policy instrument can provide useful lessons about pragmatic considerations to be borne in mind when designing foreign policy as a whole. The thesis presents new findings on the topic and attempts what may constitute the most comprehensive attempt to address economic relations between the aforementioned countries within a defined period.
168

Návrh sítě WDM-PON / Design of WDM-PON Network

Lásko, Jan January 2012 (has links)
The work is focused on the design of optical network of technologies WDM-PON. The work describes passive technologies like APON, GPON, EPON etc. Theoretical part is focused on elements used in WDM-PON networks like transmitters, receivers. Distributional part is focused on optical fibers. The work also describes the quality of service QoS and Triple play. Practical part is focused on attenuation balance, choice of locality and description of individual parts of optical network. It is further described the technology of microtubing and financial analysis. In end of the work there is a simulation of optical network for 96 clients in the distance of 1 60 km described.
169

Aktivní životní styl u dětí mladšího školního věku / Active lifestyle of young school-age children

Svobodová, Petra January 2016 (has links)
Title: Active lifestyle of young school-age children Objectives: The aim of this study is to explore, whether the younger school age children are kept to an active and healthy lifestyle. To find out, whether the kids have enough physical activity, how they eat and how much time they spend at the computer or TV. Methods: The quantitative and qualitative methods were used in my research. The qualitative data were collected through surveys and quantitative data were obtained via step counting by using a pedometer. A measurement was used as an empirical method. Measurements were held in the months of May-June and October-November 2015. Results: It was examined a total of 160 children. 14 of them are obese and 9 are overweight. The rest of the students has an optimal weight, eat adequately and has enough physical activity. Obese children spend their free time at the computer or television and have no hobbies or sports activity. Keywords: lifestyle, obesity, energy balance, causes, prevention, consequences, pedometer, children, parents, physical activity, healthy diet
170

Porovnání vybraných metod výpočtu základního odtoku na malém povodí a zhodnocení vlivu základního odtoku na koncentrace dusíku v celkovém odtoku / Comparison of selected methods of calculating of the basic runoff in a small watershed and evaluation of the basic runoff effect to the concentrations of nitrogen in total runoff

MAIEROVÁ, Monika January 2013 (has links)
This thesis is focused on the selected methods of calculating basic runoff on a small catchment basin known as the P6, which belongs to the basin Kopaninsky flow and assess the impact on the basic runoff concentration of nitrate nitrogen in the total runoff. The thesis also analyzes the total, surface and subsurface runoff with its detailed division. There are also described in detail the chosen methods used for the separation of basic drainage. There is shown their mutual comparison too. We dealt with the nitrogen in groundwater. The methods for separation of basic runoff are described with regard to the content of nitrogen compounds, which are practically the most common type of pollution of groundwater used as drinking water sources.

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