Global ETD Search
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 547 for “"Particulate Matter"”.
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Fine Particulate Matter, Neuropathologies, & Dementia
Neurodegenerative disorders, including Alzheimer’s disease (AD) and related dementias (ADRD), affect over 47 million people worldwide, and this number is anticipated to reach 131.5 million by 2050. Because no medication successfully reverses the course of dementia, researchers are focusing …
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Intraurban Variability of Ambient Particulate Matter
… of spatial and temporal variability in ambient particulate matter: PM) is important for effective air quality management and for assessing potential exposure misclassification in epidemiological and exposure studies used to support health-based standards. Spatiotemporal variability of PM in …
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Magnetism of anthropogenic airborne particulate matter
… global burden of disease associated with ambient particulate matter (PM<sub>2.5</sub>) pollution is the leading threat to life expectancy according to the Air Quality Life Index (AQLI) 2023 report. The study of airborne PM is key to understanding both its source, and its impact on human health. …
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Geochemical Investigations of Respirable Particulate Matter
… course of our lives we are exposed to airborne particulate matter in the workplace, home, and environment that results in the deposition of millions of particles in the lung. These exposures may result in disease if they are significant enough. The potential for harmful exposure depends in part …
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Particulate matter formation in spark-ignition engines
Recent health concerns over airborne particulate matter (PM) have prompted examination of the mechanisms by which PM is formed in spark ignition (SI) internal combustion engines. A study was undertaken in order to understand the effects of dilution on measured PM, to examine and model the effect of …
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Trace element geochemistry of marine biogenic particulate matter
… the major and trace element composition of particulate carrier phases. Elements examined through some or all of these experiments were: C, N, P, Mg, Ca, Si, Fe, Mn, Ni, Cu, Cd, Al, Ba, and Zn. Emphasis was placed on the identification of trace element/major element ratios in the biogenic …
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Satellite constraints on surface concentrations of particulate matter
… surface measurements useful for monitoring particulate exposure are scarce, especially in developing countries which often experience the worst air pollution. Therefore, other methods are necessary to augment estimates in regions with limited surface observations. The prospect of using …
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Comparative evaluation of low-cost particulate matter sensors
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms
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Trace element geochemistry of marine biogenic particulate matter
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Sciences, 1981.
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Accelerated settling of particulate matter by ’marine snow’ aggregates
Samples from time-series sediment traps deployed in three distinct oceanographic settings (North Pacific, Panama Basin, and Black Sea) provide strong evidence for rapid settling of marine particles by aggregates. Particle water column residence times were determined by measuring the time lag …
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Characterisation of particulate matter originating from automotive occupant restraints
… of occupational respiratory exposure to solid particulate matter (PM) effluents produced during the production of inflation gases for airbag deployment. To date methods for assessing effluent exposure has focused on vehicle occupants and not occupational exposures and has mainly centred on …
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Design of integrated capacitive sensors for particulate matter detection
With the aim of overcoming the issues of currently available PM sensors, in this thesis we propose a mm-scale in-flow integrated capacitive sensor of granulometry and concentration. The sensor relies on a capacitive sensor array which will be composed of a suitable number of electrodes forming …
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The Chemical and Physical Characterization of Airborne Particulate Matter
Made available in DSpace on 2014-12-10T23:02:12Z (GMT). No. of bitstreams: 1 7511600.pdf: 4827618 bytes, checksum: 5913a11eaed42ac6a5bf013a67313768 (MD5) Previous issue date: 1974
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Accelerated settling of particulate matter by 'marine snow' aggregates
Thesis: Ph. D., Woods Hole Oceanographic Institution, 1986
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The trace metal geochemistry of suspended oceanic particulate matter
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1989.
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The chemistry, biology, and vertical flux of oceanic particulate matter
Particulate matter samples, split into <l μm, 1-53 μm, and >53 μm size fractions have been obtained using a Large Volume in situ Filtration System (LVFS) during the SOUTHLANT expedition, R/V CHAIN 115. Profiles to 400 m are reported for LVFS Stns. 2 and 4-8. Stns. 4, 5, and 8 (S. E. Atlantic, …
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Particulate matter emissions from commercial beef cattle feedlots in Kansas
… are often considered to be large sources of particulate matter (PM), including PM with equivalent aerodynamic diameter of 10 micrometers or less (PM[subscript]10). To control PM emissions from cattle feedlots, water sprinkler systems can be implemented; however, limited data are available on …
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