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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 738 for “"aerosol"”.
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Arctic Aerosol Sources and Continental Organic Aerosol Hygroscopicity
… in predicting the ultimate effect of aerosol on climate, the sources of atmospheric particles and their subsequent ability to turn into cloud droplets needs to be better understood. This thesis addresses two parts of this issue: the sources of Arctic aerosol and the hygroscopicity of …
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Aerosol Filtration And Separation
ABSTRACT OF THE DISSERTATION Aerosol Filtration and Separation by Ta-Chih Hsiao Doctor of Philosophy in Energy, Environmental, & Chemical Engineering Washington University in St. Louis, 2009 Professor Da-Ren Chen, Advisor Particle control technologies are essential in many manufacturing industries: …
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Quantifying cloud chemical processes and aerosol optical properties using a particle–resolved aerosol model
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-12-01
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Fundamental aerosol-cloud interactions and their influence on the aerosol indirect effect on climate
The influence of anthropogenic aerosol emissions on the optical properties of clouds and the radiative forcing arising from these interactions, known as the aerosol indirect effect on climate, constitutes a fundamental uncertainty in our understanding of 2 0 th century climate change. In this …
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Atmospheric organic aerosol - water interactions
Atmospheric aerosols are responsible for adverse health effects and uncertain climate forcing. Depending on their composition, they can directly affect climate by scattering or absorbing solar radiation and they can also indirectly affect by serving as cloud condensation nuclei (CCN). While the …
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Fundamental studies of aerosol combustion
… to be combined with minimum noxious emissions. Aerosols also might produce a particularly hazardous explosion risk. To optimise their performance a fundamental understanding of the complex processes in aerosol combustion systems is necessary. A fundamental study of aerosol combustion has been …
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IODINE SPECIATION IN MARINE AEROSOL
Iodine chemistry in the marine aerosol plays important roles in the marine boundary layer such as ozone destruction and new aerosol particle formation. Iodine has a complex chemistry in the gas and aerosol phases and to date, what controls iodine speciation, the interactions and roles of individual …
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Aerosol Synthesis of Energetic Materials
Item reinstated by Sarah Shreeves (sshreeve@illinois.edu) on 2013-01-22T11:00:17Z Item was in collections: University of Illinois Dissertations and Theses (ID: 204) Dissertations and Theses - Chemistry (ID: 676) No. of bitstreams: 2 Helmich_Richard.pdf: 10495587 bytes, checksum: …
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40 Years Global Estimation of Aerosol Optical Depth Profiles Using MISR and TOMS Aerosol Products
… of the atmospheric components like aerosols, ozone, water vapor, etc. are essential to uncover the information content of the satellite imagery in the most correct form. As one of the active components of the atmosphere, the characteristics of the aerosol particles should be properly …
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Atmospheric Aerosol Particle Formation : Aircraft-Based Mass Spectrometric Measurements of Gaseous and Ionic Aerosol Precursors
The condensational growth of aerosol particles and the formation of fresh, nanometer-sized particles depend primarily upon the presence of H2SO4. Atmospheric ions produced by cosmic rays can initialize the formation of clusterions, which subsequently may grow by mutual coagulation and condensation …
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Particle-resolved aerosol modeling on the regional scale – insights into importance of capturing aerosol mixing state
Aerosol particles in the atmosphere are complex mixtures of different chemical species, and their compositions are constantly evolving as coagulation and multiphase processes act on the particle population. The particles interact with the climate system directly by scattering and absorbing solar …
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Aerosol Processes Enabling Solar Energy Applications
… films is developed. In the work reported here, Aerosol processes, which are simple operations that can be easily scaled up, were used to fabricate metal oxide-based solar cell devices. Aerosol-chemical vapor deposition: ACVD), a simple, one-step process operating at atmospheric pressure, was …
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AEROSOL EFFECTS IN HIGH SUPERSONIC FLOWS
… etc.) for testing, but this does notcapture the aerosolized nature of the atmosphere, where humidity and condensation can produce a distribution of liquid droplet sizes ranging from the average rain drop of 2mm to sub-micron diameter particles. Similarly, volcanic eruptions and ever-present …
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Vapor scavenging by atmospheric aerosol particles
Particle growth due to vapor scavenging was studied using both experimental and computational techniques. Vapor scavenging by particles is an important physical process in the atmosphere because it can result in changes to particle properties (e.g., size, shape, composition, and activity) and, …
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Measuring Aerosol Nanoparticles By Ultraviolet Photoionisation
Aerosol particulate matter adversely affects the climate, environment and human health. Mechanistic studies have indicated that ultrafine aerosol nanoparticles, those under 100 nm in diameter, may have significant health impacts due to their relatively high number concentration, surface area and …
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Decadal trends in atmospheric organic aerosol :
Organic aerosol (OA) makes up a substantial fraction of atmospheric particulate matter, yet its sources and controlling factors - and thus its impacts on climate and human health - are not well understood. Recently-developed analytical techniques have provided new insight into OA chemistry, but …
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