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Modelling of cardiac impedance signals
Matušek, Adam ; Vondra, Vlastimil (referee) ; Provazník, Ivo (advisor)
Tato diplomová práce se zabývá vytvořením modelu signálu impedančního měření srdce (ICG signál). Impedanční kardiografie podává informaci o změně srdečního objemu během srdečního cyklu. Modelování signálu předchází statistická analýza vzájemné pozice ICG signálu vzhledem k dalším mechanickým srdečním signálům. Konstrukce modelu vychází z reálných nasnímaných signálů. Konečný ICG model je začleněn do již existujícího modelu mechanických interakcí mezi srdcem a plícemi. Výsledkem je funkční model kardio-respiračních interakcí, který bude sloužit v dalších částech výzkumu laboratoře PRETA.
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Agricultural Tractors Catalogue
Musil, Vojtěch ; Svída, David (referee) ; Dundálek, Radim (advisor)
Tabled catalogue contains a selection of tractors available at Czech distributors of agricultural technics. The tractors are divided into seven groups by engine power at intervals from 32HP for low-end operations such as gardening or orchard management, above 150HP for routine application, to 446HP for the most difficult usage.
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Influence of body size and temperature on cardiac function in vertebrates
Špičák, Luboš ; Starostová, Zuzana (advisor) ; Marková, Ivana (referee)
Heart, as main driving unit of circulatory system of vertebrates, ensure a great number of body functions by constant circulation of blood in every individual. This body functions are provided by transposport of energy in various forms and by transport of chemical substances. Number of these body functions are absolutely necessary in each momemnt of the lifetime. If we describe metabolism as speed of all reactions in body, then circulatory system is one of the key means to reach it. Metabolic rate increases with two basic factors, body mass and body temperature. It's not proportional relationship, but allometric increase is conditioned by power law. In addition, this exponential relationship is limited, in case of body temperature, by temperature range specific for each living organism. It would be expected that changes in size of body and body temperature might have strong influence to quality and function of circulatory systém and heart itself. However, metabolism is significantly influenced by some another factors like quality of adjacent surrounding. Organisms belonging to vertebrates habitated great number of various enviroments and they developed lots of adaptations to survive there. This adaptations include significant changes in cardiac architecture and heart functions. The aim of this work...
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Influence of body size and temperature on cardiac function in vertebrates
Špičák, Luboš ; Starostová, Zuzana (advisor) ; Frynta, Daniel (referee)
In vertebrates circulatory system serves in ensuring of numerous of functions. A number of demands determine the characteristics of heart and it appears that meeting oxygen consumption is the most important factor. Oxygen consumption is in strong relationship with body weight and other factors like body temperature, ambient temperature or level of activity. We can assume that changes in body weight and temperature will have significant influence to the weight of heart and level of cardiac function. The aim of this work is to review knowledge of scaling of heart size, determinants of differences in cardiac function on larger taxonomical scale and focus on the relationship among body size, temperature and heart function. Key words: body size, temperature, heart rate, stroke volume, heart size, vertebrates
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Influence of body size and temperature on cardiac function in vertebrates
Špičák, Luboš ; Starostová, Zuzana (advisor) ; Marková, Ivana (referee)
Heart, as main driving unit of circulatory system of vertebrates, ensure a great number of body functions by constant circulation of blood in every individual. This body functions are provided by transposport of energy in various forms and by transport of chemical substances. Number of these body functions are absolutely necessary in each momemnt of the lifetime. If we describe metabolism as speed of all reactions in body, then circulatory system is one of the key means to reach it. Metabolic rate increases with two basic factors, body mass and body temperature. It's not proportional relationship, but allometric increase is conditioned by power law. In addition, this exponential relationship is limited, in case of body temperature, by temperature range specific for each living organism. It would be expected that changes in size of body and body temperature might have strong influence to quality and function of circulatory systém and heart itself. However, metabolism is significantly influenced by some another factors like quality of adjacent surrounding. Organisms belonging to vertebrates habitated great number of various enviroments and they developed lots of adaptations to survive there. This adaptations include significant changes in cardiac architecture and heart functions. The aim of this work...
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Modelling of cardiac impedance signals
Matušek, Adam ; Vondra, Vlastimil (referee) ; Provazník, Ivo (advisor)
Tato diplomová práce se zabývá vytvořením modelu signálu impedančního měření srdce (ICG signál). Impedanční kardiografie podává informaci o změně srdečního objemu během srdečního cyklu. Modelování signálu předchází statistická analýza vzájemné pozice ICG signálu vzhledem k dalším mechanickým srdečním signálům. Konstrukce modelu vychází z reálných nasnímaných signálů. Konečný ICG model je začleněn do již existujícího modelu mechanických interakcí mezi srdcem a plícemi. Výsledkem je funkční model kardio-respiračních interakcí, který bude sloužit v dalších částech výzkumu laboratoře PRETA.
|
|
|
Agricultural Tractors Catalogue
Musil, Vojtěch ; Svída, David (referee) ; Dundálek, Radim (advisor)
Tabled catalogue contains a selection of tractors available at Czech distributors of agricultural technics. The tractors are divided into seven groups by engine power at intervals from 32HP for low-end operations such as gardening or orchard management, above 150HP for routine application, to 446HP for the most difficult usage.
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Porovnání metod pro výpočet srdečního výdeje ze signálu impedanční kardiografie
Jurák, Pavel ; Halámek, Josef ; Vondra, Vlastimil ; Kára, T. ; Nykodým, J. ; Číp, Ondřej ; Eisenberger, M. ; Leinveber, P. ; Fráňa, P. ; Meluzín, J. ; Souček, M.
The goal of the study is to compare various methods of non-invasive stroke volume (SV) assessment from a raw impedance cardiography (IC) signal. IC detects changes in cardiac haemodynamic function using thoracic electrical bioimpedance technology. Corresponding changes of impedance are used along with ECG and blood pressure to measure and calculate haemodynamics parameters
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