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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 408 for “"aerosols"”.
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Aerosols and alternatives
Aerosol products have been widely used in both the home and industry forover thirty years. Consumption has grown steadily from their introduction until the mid 1970s when they became implicated in a major environmental controversy. This caused scientists, governments and the media to question the …
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Surfactant Behavior in Atmospheric Aerosols
Atmospheric aerosols are very important in the Earth climate system due to their role in cloud formation and the global radiation budget. However, there are still many unanswered questions about how the composition of the aerosol varies and how this composition affects the climate system. While …
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Properties of Electrically Charged Aerosols
Made available in DSpace on 2014-12-05T17:15:12Z (GMT). No. of bitstreams: 1 0009098.pdf: 6493932 bytes, checksum: 5fd1b47b55cc41f375900b7420b1ff8f (MD5) Previous issue date: 1954
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Turbulent transport of inertial aerosols
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1991.
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Optical radar studies of stratospheric aerosols.
Massachusetts Institute of Technology. Dept. of Meteorology. Thesis. 1966. Ph.D.
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Light scattering by smoke and nuisance aerosols
… aimed at discriminating between three classes of aerosols, namely those generated by flaming and non-flaming (smouldering and forced pyrolysis) fires as well as nuisance aerosols. This was undertaken using a scattering cross section based on the mass concentration of aerosols as opposed to the …
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Characterization of aerosols in an underground mine
… characterization and source apportionment of aerosols in the underground atmosphere”--Abstract, page iii.</p>
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Die Strahlungswirkung des troposphaerischen Aerosols in Mitteleuropa
Aus Messungen waehrend der Kampagne LACE 98 (Lindenberger Aerosol-Charakterisierungs-Experiment, Juli/August 1998) wurden aus einer Vielzahl von Messungen zahlreicher Gruppen, sowohl am Boden wie auch von Flugzeugen aus, verschiedenste relevante Parameter bestimmt. Mittels eines flexiblen und …
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Simulating the atmospheric primary and secondary organic aerosols
… highly oxygenated nature of ambient organic aerosols (OA), the relatively small OA concentration gradients between large urban areas and their surroundings, and the concentrations of OA during periods of high photochemical activity. To address the above issues new primary and secondary …
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Engineering of Inhalation Aerosols Combining Theophylline and Budesonide
In asthma therapy, the use of theophylline to prevent bronchial spasm and glucocorticoids to decrease inflammation is widely indicated. Apart from the acute asthma attack oral theophylline is treated for chronic therapy in order to minimize inflammation and to enhance the efficiency of …
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COHERENT DETECTION OF SCATTERED LIGHT BY SUBMICROMETER AEROSOLS.
… promise for in situ measurement of submicrometer aerosols in high particle laden streams with maximum sensitivity for strongly absorbing particles.
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Particle size distributions and stability of aqueous aerosols.
Thesis: M.S., Massachusetts Institute of Technology, Department of Chemical Engineering, 1975
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Spray Aerosols From Saltwater to Freshwater Breaking Waves
While sea spray aerosols (SSAs) generation by oceanic breaking waves continues to be an active research area, lake spray aerosols (LSAs) production by freshwater breaking waves is an emerging research field. Recent studies have linked LSAs to regional cloud processes and the aerosolization of …
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Characterisation of Aerosols Generated by Pressurised Metered Dose Inhalers
For over half a century, pressurised metered dose inhalers (pMDIs) have been the<br/>most sold inhaler devices for the treatment of lung diseases. However, they suf-<br/>fer from signicant drug deposition in the mouth and throat, mainly due to the<br/>aerosolisation of large and fast-moving …
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Connecting Water Quality With Air Quality Through Microbial Aerosols
… deposition, identity and viability of microbial aerosols are largely uncharacterized. This dissertation focuses on the environmental and biological mechanisms that define this water-air connection, as a means to build our understanding of the biogeochemical, biogeographical, and public health …
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Mesh-free modeling of spatially inhomogeneous aerosols in arbitrary geometries
… source term, one of which is the existence of aerosols. These aerosols are usually simulated with the assumption that they are spatially homogeneous. Making this assumption reduces complexity when compared to spatially inhomogeneous aerosol models. This dissertation investigates using the …
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Digital Microfluidics for the Detection of Inorganic Ions in Aerosols
<p>The quantitative measurement of inorganic ions in the atmosphere is an important aspect in environmental science. The three most important inorganic ions are sulfate, nitrate and ammonium, which are the most abundant components of atmospheric pollutants and have a significant impact on rainfall, …
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Metal and Metalloid Contaminants in Atmospheric Aerosols from Mining Operations
… of the fate and transport of atmospheric aerosols. One of the major findings from size-resolved chemical characterization at three mining sites showed that the majority of the contaminant concentrations were found in the fine size fraction (<1 micrometer). Further, metal and metalloids …
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