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Rehydration of alkali-activated slag after high temperature loading
Fialová, Barbora ; Bayer, Patrik (referee) ; Rovnaník, Pavel (advisor)
Ground granulated blast furnace slag is a by-product of the steel industry and is often used in combination with ordinary Portland cement as a binder in concrete. When concrete is exposed to high temperatures, physical and chemical transformations lead to significant loss of mechanical properties. This study aims to investigate the effect of high temperatures and rehydration on the mechanical properties, microstructure and phase composition of alkali activated slag. The results of the research could make an important contribution to decisions made concerning the reconstruction of structures affected by fire. In suitable cases it would be possible to regenerate parts of a structure instead of totally rebuilding it.
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Friction measuring of human joints
Šnejdar, Radim ; Ranuša, Matúš (referee) ; Čípek, Pavel (advisor)
This bachelor thesis concerns about the tribology of real joints. The aim of this work is an elucidation of the influence of chosen operating conditions on shear force coefficient. It deals especially about speed, strain and rehydration. The experimental tasks will be realized on tribometer, which is available in laboratories of ÚK. In this work, current state of knowledge in the area of discussed issues are described. Also the device and measured methods which help to measure and evaluate data files. In the last section of this work, the results are evaluated and the following conclusions are established.
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Solid form of liposomal systems for inhalation
Fardová, Lucie ; Kalina, Michal (referee) ; Mravec, Filip (advisor)
This thesis deals with the preparation of solid liposomal systems for inhalation delivery. Liposomal systems were prepared by rehydration of a phospholipid film from dipalmitoylphosphatidylcholine. A sucrose solution used for film rehydration served as a protectant during spray drying. Additional liposome samples contained cholesterol, phosphatidic acid, or polyethylene glycol for better stabilization. The prepared liposome solutions were examined using scanning transmission electron microscopy, dynamic light scattering, and electrophoretic light scattering methods. Dried powders were measured using infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy, and determination of particle aerodynamic size. The results demonstrate the successful preparation of all liposomal systems, their drying into powder form, and subsequent reconstruction after rehydration with water or buffer. Based on the observed properties, liposomes with polyethylene glycol appeared to be the most suitable.
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Friction measuring of human joints
Šnejdar, Radim ; Ranuša, Matúš (referee) ; Čípek, Pavel (advisor)
This bachelor thesis concerns about the tribology of real joints. The aim of this work is an elucidation of the influence of chosen operating conditions on shear force coefficient. It deals especially about speed, strain and rehydration. The experimental tasks will be realized on tribometer, which is available in laboratories of ÚK. In this work, current state of knowledge in the area of discussed issues are described. Also the device and measured methods which help to measure and evaluate data files. In the last section of this work, the results are evaluated and the following conclusions are established.
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Rehydration of alkali-activated slag after high temperature loading
Fialová, Barbora ; Bayer, Patrik (referee) ; Rovnaník, Pavel (advisor)
Ground granulated blast furnace slag is a by-product of the steel industry and is often used in combination with ordinary Portland cement as a binder in concrete. When concrete is exposed to high temperatures, physical and chemical transformations lead to significant loss of mechanical properties. This study aims to investigate the effect of high temperatures and rehydration on the mechanical properties, microstructure and phase composition of alkali activated slag. The results of the research could make an important contribution to decisions made concerning the reconstruction of structures affected by fire. In suitable cases it would be possible to regenerate parts of a structure instead of totally rebuilding it.
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Nursing care for sucklings and toddlers with diarrheal disease
KYLIANOVÁ, Alena
Abstract Diarrhoeal diseases in infants and toddlers represent a frequent and serious problem. A more severe course of a diarrhoeal disease and its complications lead to hospitalization of a child patient. Clinical manifestations of diarrhoeal diseases are particularly thin, watery and frequent stools. Other usual accompanying symptoms are vomiting and increased or high body temperature. In such little patients dehydration may occur within a short period of time. Severe dehydration can lead to death. Appropriate and quality nursing care is very important. The aim of this bachelor thesis is to answer the research question: What is the level of knowledge of nursing care standards in nurses dealing with infants and toddlers with diarrhoeal diseases in hospitals? The theoretical section of the bachelor thesis deals with causes, clinical manifestations, diagnostics, treatment and prevention of diarrhoeal disease in infants and toddlers. The most common nursing issues are also mentioned. In the study the nursing care provided through the nursing process is surveyed. The patients´ needs and their proper education are discussed. In conclusion of the study the issue of a nursing standard is analyzed. The survey was carried out using anonymous questionnaires. The respondents of the research study were nurses working on three pediatric departments and one infectious department. The obtained results are summarized in graphs and tables. The results analysis has shown that nurses involved in the survey provide a high quality and good nursing care regardless of their education and the length of experience. Furthermore, the results showed: the respondents working at a department where a nursing care standard was developed know and apply the standard and only propose to supplement this standard by the issue of oral rehydration. According to the responding nurses, the standard was not lacked in departments where it had not been developed. Based on the obtained results, nursing procedures and standards of nursing care in oral rehydration in infants and toddlers with diarrhoeal disease were worked out.
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