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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.
431

Kvalita otopné vody pro zdroje tepla / Hot water quality for heat

Snášelová, Tereza January 2017 (has links)
The diploma thesis focuses on assesment of water quality in heating systems. The experiment includes description of used methods and meters as well as analysis of collected samples. The theoretical part describes selected water properties, quality meters and sources of heat according to the material of their heat exchanger. This thesis processes design of heating system and hot water preparation for complex of administration buildings. The project includes calculations of heat losses, system proposal and two versions of possible heat source. The first version offers solution with condensing boiler with heat exchanger from stainless steel, while the second version uses condensing boiler with heat exchanger from aluminium and silicon. Both versions have their own solution of safety equipment and water treatment.
432

Sledování jakosti vody v povodí Stropnice / Monitoring of water quality in the river Stropnice

Petrlíková, Kateřina January 2014 (has links)
Five indicators of water quality, namely biochemical oxygen consumption in five days, chemical oxygen consumption by dichromate method, nitrate nitrogen, ammonium nitrogen and total phosphorus, were determined in the river Stropnice. The samples were monitored at four offtake places along the river monthly during the year 2013. Twice a year water samples were analyzed also fromthe dischargeof the wastewater treatment plants. The results show that some changes of the individual parameters can be traced during the year, such as increase of oxygen consumption and total phosphorus in the summer months. However, no significant fluctuation was indicated for the measured parameters at any of the offtake places. Based on the values of the individual parameters water in Stropnice can be ranked to quality classes II. - IV. In the long-term frame of water quality examination from the year 2008 average indicators' values and characteristic values were determined. The results revealed that neither in this case substantial changes of water quality regarding the measured indicators can be observed.
433

Režimová opatření pro úpravu životního stylu pro osoby se sclerosis multiplex / Lifestyle changes to lifestyle modification for people with multiple sclerosis

Libá, Martina January 2014 (has links)
Title: Lifestyle changes to lifestyle modification for people with multiple sclerosis Aim: Designing a program that affects lifestyle, fitness and physiological parameters in subjects of different age and different sex of people who have a diagnosis of multiple sclerosis (MS). Method: A literary review to make a summary of knowledge on MS and use of physical activities as opportunities to influence the overall lifestyle of people with MS. Results: The result is an overview of the programs and its evaluation - changes in physiological parameters, condition and subjective feelings. We found that when respecting the state of health programs may be implemented in the long term. Conclusion: The success of interventions depends on collaboration, time availability, but also the respecting of the designed programs of people involved. At the same time, however, assumes that an active lifestyle affects the mental aspect of individuals and their subjective feelings. Keywords: Multiple sclerosis, physical condition, subjective feelings, body fat percentage, body water percentage, body weight, muscle dysbalance
434

Výzkum nenasycené zóny v severní části Moravského krasu / Study of vadose zone in northern part of Moravian Karst

Gregorová, Anita January 2012 (has links)
This study is focused on the flow through the uppermost part of the unsaturated zone in karstified areas. The information about distribution of transit times and chemical reactions taking place in the unsaturated zone is based on isotopic and chemical composition of cave dripwaters, precipitations and water caught by gravitation lysimeters. The water balance was calculated using measurements of intensity of dripwaters and amounts of water caught by lysimeters and rain gauges. The velocity of a hydraulic shockwave between monitored objects was also estimated according to the delay between significant precipitation event and dripwater intensity increase. The field study took place in the Němcova 1 cave in the northern part of Moravian Karst, near the village Suchdol. It was carried out during the hydrological year 2010/2011. The cave is about 13 m under the surface. The information about composition of overlaying rock above the cave was obtained using geoelectrical and electromagnetic measurements. Studied geological environment is built of 0.5 - 1.5 m of soil, 0.5 - 3.5 m of epikarst and a layer of massive limestone as thick as 10 m. About 70 to 90 % of dripwaters have residence time over 4 years. The distribution of transit time of younger water can be described using the exponencial model (well...
435

Invazivní metody v prenatální péči z pohledu ošetřovatelství z využitím systémů NANDA, NIC a NOC / Invasive methods of prenatal care from the perspective of nursing, using the system NANDA, NIC and NOC.

ŠTEFKOVÁ, Karin January 2015 (has links)
In this thesis, we deal with the issue of invasive methods of prenatal care from a nursing perspective using standardized classification schemes NANDA, NIC and NOC, which offer many opportunities to streamline, simplify and improve the care of women who undergo invasive procedures. The theoretical part is focused on screening in prenatal care, individual invasive methods and the most common congenital malformations of the child. Furthermore, standardized classification systems NANDA, NIC and NOC, which represent a common nursing language. The empirical part of the dissertation is processed using qualitative strategy. To collect data, we selected the following research methods: content analysis of documents, evaluation using Fehring's model. The first goal was to detect and identify the problems that women face after amniocentesis (AMC), chorionic villus sampling (CVS) and cordocentesis and second goal was to assess the applicability of selected issues of classification systems NANDA, NIC and NOC with Fehring's model of validation of nursing diagnoses. Using content analysis, we have selected three nursing diagnosis from the NANDA International Taxonomy II, from publication of Nursing Interventions clasification (NIC) 3 nursing interventions and from Nursing Outcomes Clasification (NOC) 4 expected results, which are focused on the respondents after invasive methods. From selected nursing diagnoses of NANDA, NIC interventions and NOC expected results, we have developed a research form, specific questionnaire we submitted to the validation by respondents. The survey was carried out from January to March 2015 in the polyclinic GENNET Ltd. - Centrum of Medical genetics and reproductive medicine and in a private clinic OG Medical Center Ltd. The sample consisted of 34 intentionally selected respondents who underwent amniocentesis, chorionic villus sampling, or cordocentesis. The outcome of this thesis is the basic concept of the nursing diagnosis, according to NANDA-I, NIC and NOC aimed at women after invasive methods for prenatal care. Research has shown that with the the vast majority of respondents significantly exhibited symptoms of fear and anxiety. In contrast, in terms of the respondents reported that the knowledge of the issue is sufficient. This result is influenced by the fact that respondents find a lot of information on the Internet, but that may not always be true. Unfortunately, the results showed that it is more a problem of communication and interest of the medical staff.
436

Analýza kvality pitné vody v jižních Čechách

VRÁNEK, Ivo January 2016 (has links)
The goal of diploma thesis was a comparison of potable water indicators in representative areas of the south Bohemia. Monitored period had been from January 2012 till December 2014. Monitored parameters were microbiological indicators (Escherichia coli, coliform microbes, number of colonies at 22°C, number of colonies at 36°C, organoleptic indicators (color, turbidity, smell, taste). Physical and chemical indicators (ammonium ions, nitrates, nitrites, chemical consumption of oxygen, chlorides, conductivity, manganese, pH, sulphates, calcium and magnesium, iron). From the total complex of 1165 data, there were 23 values over the limit (1,97%) of evaluation of all monitored quality indicators (microbiological, organoleptic, physical and chemical). In evaluation of microbiological indicators, there were 6 values (1,97%) over the limit, from total 304 data. In organoleptic indicators, there was 1 value (0,44%) over the limit, from total 227 data. In evaluation of physical and chemical indicators, there were 16 values (2,52%) over the limit, from total 634 data. In total, there are 23 values which don´t meet determined limits from The Regulation No. 252/2004 and EU directives. There are these values of limits - number of colonies at 22°C, number of colonies at 36°C, turbidity, manganese, calcium and iron.
437

Čištění komunálních odpadních vod v domovních kořenových čistírnách - hygienické aspekty a možnosti využití v podmínkách ČR / Wastewater Treatment Using House Sewage Treatment Plants {--} Hygienic Aspects and Usage in the Czech Republic

FIŠEROVÁ, Alena January 2009 (has links)
Constructed wetlands (CWs) originate from natural wetlands and are used for waste water treatment as an alternative to conventional treatment. This thesis was aimed at providing a literary summary of the types of house sewage water treatment plants and constructed wetlands used in the CR and abroad, of their hygienic aspects, functionality, treatment efficiency, expensiveness and the possibilities of their use in the conditions of the CR and their advantages and disadvantages. It also deals with a proposal of a suitable type of house CW for the conditions of the CR and a list of the necessary steps in construction of a house CW. Quite similar systems are being used for house sewage treatment in the Czech Republic and abroad {--} mostly septic tanks, ground mounds, constructed wetlands, active treatment plants and biodiscs. Alternative water treatment methods are generally not suitable for buildings having (now or in the future) the possibility of connection to municipal sewerage systems. They are on the other hand suitable for buildings not connected to sewerage systems or for seasonal objects, remote places and holiday houses with seasonal waste water production. A system with horizontal subsurface flow is mostly used as a CW in the Czech Republic. This CW type ensures sufficient removal of organic contamination and insoluble substances, but the efficiency of nitrogen and phosphorus removal is relatively low. However it is fully sufficient in the instance of low PE numbers, as the loading rate is usually low and the concentration of contaminants in the output water meets the prescribed limits. Foreign researches show that hybrid systems combining horizontal flow with vertical flow and with recirculation are more suitable for improving efficiency of nitrogen removal. Systems with vertical flow and intermittent waste water dosage showing particularly good results in ammoniac removal are also suitable for nitrogen removal. Special materials with higher iron, aluminium or calcium content are most suitable as filling of a constructed wetland or as additional filters or for improvement of phosphorus removal from waste water as they are able to reach efficiency of up to 90 %. In my thesis I came to a conclusion that a CW with horizontal subsurface flow is the most suitable type of house constructed wetland treatment for the conditions in the CR, mainly because it is the most frequently used and thus best proven CW type with sufficient efficiency of treatment for the substances required by standards.
438

Vliv předoxidace manganistanem draselným na koagulaci neproteinových látek produkovaných řasou Chlorella vulgaris / Influence of preoxidation by potassium permanganate on coagulation of nonproteinaceous compounds produced by alga Chlorella vulgaris

Přech, Jiří January 2018 (has links)
6 Abstract: The presence of phytoplankton and its products (AOM) in source water is a current challenge in water treatment processes. The production of AOM increases with anthropogenic eutrophication of ecosystems. AOM impair the water treatment processes and may form harmful disinfection by-products. The traditional water treatment process is a coagulation, which is very efficient in removing phytoplankton cells, but this is not the case when removing some kinds of AOM. Especially its nonproteinaceous fraction with low molecular weight, which can represent majority of total organic carbon, is removed with very low efficiency. The removal of AOM by coagulation can be enhanced by preoxidation. This thesis examines the influence of preoxidation by potassium permanganate of nonproteinaceous fraction of COM of algae Chlorella vulgaris on its coagulation by aluminium sulphate and polyaluminiumchloride. To compare, solutions with nonproteinaceous COM were coagulated with and without preoxidation by five different doses of permanganate (0,025; 0,05; 0,1; 0,15 a 0,2 mg KMnO4 mg-1 DOC). The doses of permanganate and time need for oxidation (30 minutes) were determined by decreased DOC and permanganate during preoxidation experiments. The maximal DOC removals achieved both with and without preoxidation were 17 %...
439

Analýza vybraných ukazatelů kvality vody / The analysis of selected parameters of water quality

KŘÍŽOVÁ, Iveta January 2013 (has links)
Cílem této diplomové práce je provést analýzu vybraných ukazatelů kvality pitné vody a posouzení faktorů, které ji ovlivňují. V první části jsou zachyceny vybrané mikrobiologické ukazatele, tak jak je popisuje literatura, včetně platných norem a vyhlášek. Druhá část popisuje průběh provádění vlastní analýzy, z poskytnutých materiálů akreditovanou laboratoří společnosti AGRO-LA, spol. s r. o., až po vyhodnocení získaných výsledků.
440

Celková tvrdost vody a pH při vývoji jiker u vybraných druhů akvarijních ryb / The total water hardness and pH during the egg development in selected aquarium fish species

FRANTL, Zdeněk January 2010 (has links)
Objectives of thesis: 1.To evaluate the effect of pH and total hardness of water on the development of eggs in aquarium fish Corydoras paleatus, Corydoras paleatus albin, Tanichthys albonubes, Tanichthys albonubes gold, Aphyosemion gardneri, Aphyosemion gardneri gold. 2.Recommendation of optimal values of total hardness of water and pH for successful development of eggs for each monitored aquarium fish. Based on published data in available literature sources and on own experiments, it was evaluated how total water hardness (CM) and pH influences development of aquarium fish eggs of Aphyosemion gardneri, Aphyosemion gardneri gold, Tanichthys albonubes, Tanichthys albonubes gold, Corydoras paleatus, Corydoras paleatus albin.

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