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Health protection of the 3D printer user
Plášil, František ; Kočiš, Petr (referee) ; Halamíček, Lukáš (advisor)
This bachelor thesis deals with the health protection of the 3D printer user. The first part is dealing with the current state of knowledge that describes the 3D printing technologies which are currently in use and than describes the Fused deposition modeling technology. Followed by a possible problems which may be caused by this technology. At the end there was made a suggestion how to protect the health of the 3D printer user.
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Evaluation of the presence of fine and ultrafine particles in the air in an industrial zone
Kysilka, Matěj ; Martincová, Jana Victoria (referee) ; Doležalová Weissmannová, Helena (advisor)
This bachelor thesis deals with the issue of the presence of the fine and ultrafine particles in an industrial zone. At the beginning of the theoretical part, dust particles and their division by size are described. Subsequently, sources of particles, methods of their measurement are mentioned and methods of analysis are described in more detail. Significant part of the research is devoted to health risks related to exposure to particles, the fundamental impact on the environment is also mentioned. The experimental part describes the measurement conditions that took place outdoor near an unnamed industrial zone. At the beginning of the experimental part, the used devices are presented. Subsequently, measured and graphically evaluated data on the concentration of particles in the air are presented. Particles collected on filter were used for analysis of selected metals. Analysis of selected metals was performed also on the samples of soil and plant material. The obtained metal concentration data were evaluated and commented.
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Ultrafine particles and their possible role in etiology and development of neurodegenerative diseases
Topinka, Jan ; Závodná, Táňa ; Rössnerová, Andrea ; Rössner ml., Pavel
Air pollutants have been shown to cause a vast amount of different adverse health effects. These effects include impairment of many respiratory (e.g. asthma, chronic obstructive pulmonary disease) and cardiovascular (ischemic heart disease, infarction, stroke) diseases. However, in recent years, the evidence showing effects beyond the lungs and circulatory system are becoming more evident. Neurological diseases, namely Alzheimer's disease (AD) has shown to be associated with living near traffic. However, reason for this has remained unresolved until today. Our new H2020 project TUBE aims on revealing the mechanisms of action of ultrafine particles involved in neurological diseases. The TUBE consortium includes experts in areas of aerosol technology, emission research, engine and fuel research, human clinical studies, epidemiology, emission inventories, inhalation toxicology, neurotoxicology and disease mechanism studies. This enables research of resolving the effects of nanoparticles from different traffic modes for both air quality and concomitant toxic effect of these air pollutants. We will investigate adverse effects of air pollutants using cell cultures, animal exposures and volunteered human exposures as well as the material from epidemiological cohort study. These are going to be compared according to inflammatory, cytotoxic and genotoxic changes and furthermore beyond the current state of the art to neurotoxic and brain health effects. With this approach, we are aiming to a comprehensive understanding of the adverse brain effects of nanoparticles from traffic.
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Estimating infiltration of quasi-ultrafine aerosol by the absorbance method: Air quality in schools
Stehlíková, Pavla ; Braniš, Martin (advisor) ; Hovorka, Jan (referee)
Estimating infiltration of quasi-ultrafine black carbon particles by an absorbance method: air quality in Pavla Stehlíková Abstract This diploma thesis focused on the estimating quasi-ultrafine particles amount in school gyms continue previous study researched air quality in schools. The size-segregated mass concentration of particulate matter was measured in three elementary school gyms in central part of Prague, on periphery of Prague and in a small settlement Černošice during twenty campaigns, from 2005 to 2009. The mass concentration of particulate matter were measured by 5-staged Sioutas impactor. For this thesis we have selected samples on filters with particle size <0,25µm. To evaluate carbonaceous particles amount we used reflectance. Reflectance was transformed into an absorption coefficient (m- 1 .10-5 ). The average levels of absorptions coeficients were higher outdoors (14,66 ± 8,93 m- 1 .10-5 ) than indoors (13,64 ± 8,08 m-1 .10-5 ). The correlations between absorption coeffitients outdoors and indoors were significant for all schools (Spearman's correlation coefficient at intervals 0,834-0,957, regression slope 0,759-1,007), suggesting a high outdoor-to-indoor penetration rate. The weak correlation between absorption coefficients and number of exercising pupils (correlation coefficient 0,059)...
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Health protection of the 3D printer user
Plášil, František ; Kočiš, Petr (referee) ; Halamíček, Lukáš (advisor)
This bachelor thesis deals with the health protection of the 3D printer user. The first part is dealing with the current state of knowledge that describes the 3D printing technologies which are currently in use and than describes the Fused deposition modeling technology. Followed by a possible problems which may be caused by this technology. At the end there was made a suggestion how to protect the health of the 3D printer user.
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Estimating infiltration of quasi-ultrafine aerosol by the absorbance method: Air quality in schools
Stehlíková, Pavla ; Braniš, Martin (advisor) ; Hovorka, Jan (referee)
Estimating infiltration of quasi-ultrafine black carbon particles by an absorbance method: air quality in Pavla Stehlíková Abstract This diploma thesis focused on the estimating quasi-ultrafine particles amount in school gyms continue previous study researched air quality in schools. The size-segregated mass concentration of particulate matter was measured in three elementary school gyms in central part of Prague, on periphery of Prague and in a small settlement Černošice during twenty campaigns, from 2005 to 2009. The mass concentration of particulate matter were measured by 5-staged Sioutas impactor. For this thesis we have selected samples on filters with particle size <0,25µm. To evaluate carbonaceous particles amount we used reflectance. Reflectance was transformed into an absorption coefficient (m- 1 .10-5 ). The average levels of absorptions coeficients were higher outdoors (14,66 ± 8,93 m- 1 .10-5 ) than indoors (13,64 ± 8,08 m-1 .10-5 ). The correlations between absorption coeffitients outdoors and indoors were significant for all schools (Spearman's correlation coefficient at intervals 0,834-0,957, regression slope 0,759-1,007), suggesting a high outdoor-to-indoor penetration rate. The weak correlation between absorption coefficients and number of exercising pupils (correlation coefficient 0,059)...
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Ultrafine Particle Concentrations: Importance of Local Sources and New Particle Formation in Two Central European Cities
Wonaschuetz, A. ; Wagner, R. ; Aschauer, I. ; Haindl, R. ; Ludwig, W. ; Zecha, G. ; Ondráček, Jakub ; Vodička, Petr ; Zíková, Naděžda ; Ždímal, Vladimír ; Schwarz, Jaroslav ; Hitzenberger, R.
In this study, the importance of local primary sources and new particle formation as sources of fine and ultrafine particles is investigated for winter and summer in two central European cities. Particular attention is given to the impact of local meteorological characteristics: air mass origins play a large role in the characteristics of the background aerosol and the concentrations of trace gases associated with new particle formation and growth, and precipitation and thus the condensational sink.
Fulltext: content.csg -  PDF
Plný tet: SKMBT_C22013091713550 - PDF
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