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Evaluation of iron intake in a selected group of women
KRŮČKOVÁ, Dominika
This thesis focuses on the assessment of iron intake in women. Women, especially those of childbearing age, are an at risk group for iron deficiency anaemia. This is because of the higher need for this trace element due to its loss during menstruation, in pregnant and lactating women the need for iron increases due to fetal nutrition and increased red blood cell production to ensure adequate oxygen transport to both mother and fetus. Iron intake was monitored in two groups of women, with the first group comprising women younger than 50 years of age, while the second group included women older than 50 years. Both groups consisted of six female respondents. Iron intake was assessed through four weekly dietary intakes. Dietary consumption was recorded for one year. One weekly diet was recorded by the respondent in each season. The diets were analysed through publicly available databases. The recommended standard for nutrient intake was based on the recommendations of DACH (2019). The aim of this study is to analyze the intake of iron, energy and essential nutrients and to compare the resulting values both within the two groups of respondents and with the official recommendation for the intake of each nutrient. According to the results, only one respondent from the age group over 50 years does not meet the recommended standard of 10 mg iron/day. In the group of women under 50 years of age, only 1 respondent meets the recommended standard of 15 mg iron/day. However, the iron intake of most of the respondents can be assessed as satisfactory. Furthermore, there was a difference in iron intake between the two groups of women, with women under 50 years receiving statistically more iron than women over 50 years. The effect of season on iron and essential nutrient intake was not demonstrated. A statistically significant difference was observed only in the energy intake of the group of women over 50 years of age, namely between the summer and autumn seasons, with women in this group taking in statistically more energy in the autumn season compared to the summer season. Furthermore, a positive moderate correlation was found between protein and iron intake. A varied and balanced diet that includes iron rich foods such as red meat, poultry, fish and legumes is essential for adequate iron intake. Iron absorption can be aided by simultaneous consumption of foods containing vitamin C.
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Optimizing experimental parameters for LIBS analysis of hard tissues
Fazlić, Aida ; Kuchynka,, Michaela (referee) ; Pořízka, Pavel (advisor)
Tato diplomová práce se zaměřuje na detekci a analýzu těžkých kovů, zejména olova (Pb), v tvrdých tkáních pomocí hydroxyapatitových standardů a spektroskopie laserem buzeného plazmatu (LIBS). Studie využívala různé vlnové délky laseru 1064 nm, 532 nm a 266 nm, stejně jako různé konfigurace laseru, včetně jednopulzní (SP, z angl. single-pulse) LIBS a dvojpulzní (DP, z angl. double-pulse) LIBS v ortogonálním a kolineárním uspořádání. Byla provedena optimalizace parametrů laseru, jako jsou vlnová délka, defokus, doba zpoždění, mezipulzní doba zpoždění a energie. Poměr signál-ke-šumu (SBR), limit detekce a rozlišení odpovídající průměru ablačního kráteru sloužily jako základní parametry pro určení optimální kombinace parametrů. Výsledky této studie poskytují důležité poznatky o optimálních parametrech LIBS pro detekci a analýzu těžkých kovů v tvrdých tkáních, což může mít potenciálně významné dopady pro lékařský výzkum.
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Waste to energy in European Union
Klučka, Ivan ; Šomplák, Radovan (referee) ; Ferdan, Tomáš (advisor)
This thesis is focused to waste to energy in the European Union. To the legislation applicable in the European Union in this thesis are summarized aspects of the member states in the field of energy recovery in terms of capabilities, technologies, etc. In this thesis is prepared an overview of the largest suppliers of technology and comparing the efficiency of energy production.
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Energy supply of the complex Technicka 2
Buráň, Petr ; Lisý, Martin (referee) ; Pospíšil, Jiří (advisor)
The theme of this master thesis is „Energy supply to the site Technická 2“. This thesis is divided into several parts. First we will get in touch with concept of combined heat and power and also with principle of photovoltaic electricity production. We will continue with description of site before and after reconstruction. Then we will follow with analyze the effect of reconstruction on energy consumption. In the end we will make some suggestions for using the local source of heat and electricity in Faculty of mechanical engineering, Brno university of technology. All suggestions will be analyzed from energy and economic point of view.
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Heat storage in solar thermal systems
Mokriš, Lukáš ; Hejčík, Jiří (referee) ; Charvát, Pavel (advisor)
In this bachelor’s thesis are described methods of heat storage in solar thermal systems. Solar energy is retrieved in form of solar radiation, that is processed and stored in the form of sensible heat of solid materials and liquids, as heat of fusion of some material or as chemical heat, which is created during reversible chemical reactions.
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Low-speed Wind Turbines for Small and Medium Size Applications
Forró, Bálint ; Paar, Martin (referee) ; Procházka, Zdeněk (advisor)
Bachelor’s thesis deals with usage of slow-running wind turbines for small and medium applications, especially with Savonius rotor. In first part I described theoretical usage of wind and analysis of wind power plants. Next part describes advantages and disadvantages of Savonius wind rotor and its practical usage. Thesis is ended with engineering design of wind rotor of this type for according performance at specific wind speed.
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Environmental design of the kindergarten building
Velísková, Jana ; Rubinová, Olga (referee) ; Uher, Pavel (advisor)
This thesis deals with the design of a kindergarten building in the village of Dolní Lhota.It is designed as a two-storey building with a flat roof. It will be connected to the existing primary school building. The first floor will be used for kindergarten purposes, the second floor will be used for afternoon activities. The first floor will house a classroom, toilets for children, cloakroom, offices, cleaning facilities, storage, utility room, mechanical room. On the second floor there are two classrooms for afternoon activities, a cloakroom, office, storage and toilets. It consists of three parts. The first part deals with the design of the building structure. It contains the project documentation with all floor plans, sections, foundations, roof drawing, technical report, views. The structural system of the building is a wall system. The perimeter and internal load-bearing masonry is designed in ceramic blocks. The ceilings are made of spiroll panels. The second part contains the technical equipment of the building. Design of the air handling unit and distribution elements to the rooms. Calculation of rainwater utilisation. It also includes the design of the building heating, lighting and a drawing of the global scheme. Photovoltaic panels are proposed on the roof to cover the building's consumption. Heating is provided by groundwater In the third part I discuss the effect of zoning a building. I used the design of air handling units as an example. Given the use of a school building, where the first floor will run mostly in the morning and the second in the afternoon, I looked at which option is more economical
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Energetic model of linear axis with ball screw and servodrive
Sládek, Vojtěch ; Tůma, Jiří (referee) ; Huzlík, Rostislav (advisor)
The aim of the thesis was to study the Energy Models of Linear Axes with Ball Screws and Servo Drives, to analyze the individual parts of the axis with respect to losses, the methodology of calculating the losses on the electrical part and the mechanical part of the drive and creating a complex algorithm that calculates the energy consumed for the specified motion. The thesis is divided into a theoretical and practical part, where the theoretical part is divided into the treatise on the electrical part of the axis and its losses and the part that deals with the mechanical part and its losses. The calculation is divided into the basic verification algorithm and the calculation on the given example. Each calculation is calculated for both linear acceleration and S-curve acceleration. For both types of acceleration, the result of energy and its course over time is also the waveforms of position, velocity, acceleration, angular acceleration, moments, powers, power, speed and currents over time.
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