|
|
Measurement and analysis of deposition of fibers from mineral wool in respiratory system
Hájek, Ondřej ; Elcner, Jakub (referee) ; Lízal, František (advisor)
This master thesis deals with inhalation of fine particles and fibres into human lungs. This is a scientific field where computer modelling is used to describe the movement of fibres and their deposition in the lungs. However, the results of these simulations must be verified experimentally. The prediction of fibres behaviour is important from a toxicology point of view where it is important to know deposition hot-spots and places where fibres could possibly cause problems. The review of the state-of-the-art is focused on the deposition of particles in human lungs followed with a chapter on fibre as a type of particle, and occupational exposure limits set by different world associations. The last theoretical chapter describes human lungs and its diseases which can evolve when limits for occupational exposure are not met. The experimental chapter consists of a description of the used experimental setup and results from an experiment together with a comparison of results with other similar experiments.
|
|
|
Breathing simulator
Stejskal, David ; Jedelský, Jan (referee) ; Lízal, František (advisor)
The purpose of this thesis was to create realistic breathing cycles for breathing simulator and than to verify the functionality of the simulator. The first section of this thesis was conceived as an general introduction to problematics of breathing. This section describes the construction of the lungs, the breathing mechanism and lung volumes. The subject of this study were also important factors that affect human respiration. Processing of acquired data and creation of breathing cycles for breathing simulator is described in the second section of this thesis. Five specific breathing patterns were created. The experimental verification of the breathing simulator functionality is part of the second section.
|
|
|
Measurement and analysis of deposition of fibers from mineral wool in respiratory system
Hájek, Ondřej ; Elcner, Jakub (referee) ; Lízal, František (advisor)
This master thesis deals with inhalation of fine particles and fibres into human lungs. This is a scientific field where computer modelling is used to describe the movement of fibres and their deposition in the lungs. However, the results of these simulations must be verified experimentally. The prediction of fibres behaviour is important from a toxicology point of view where it is important to know deposition hot-spots and places where fibres could possibly cause problems. The review of the state-of-the-art is focused on the deposition of particles in human lungs followed with a chapter on fibre as a type of particle, and occupational exposure limits set by different world associations. The last theoretical chapter describes human lungs and its diseases which can evolve when limits for occupational exposure are not met. The experimental chapter consists of a description of the used experimental setup and results from an experiment together with a comparison of results with other similar experiments.
|
|
|
Breathing simulator
Stejskal, David ; Jedelský, Jan (referee) ; Lízal, František (advisor)
The purpose of this thesis was to create realistic breathing cycles for breathing simulator and than to verify the functionality of the simulator. The first section of this thesis was conceived as an general introduction to problematics of breathing. This section describes the construction of the lungs, the breathing mechanism and lung volumes. The subject of this study were also important factors that affect human respiration. Processing of acquired data and creation of breathing cycles for breathing simulator is described in the second section of this thesis. Five specific breathing patterns were created. The experimental verification of the breathing simulator functionality is part of the second section.
|
guest ::
