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Skip to Search Results- 1Dickau, Matthew A
- 1Golshahi, Laleh
- 1Graves, Brian M
- 1Kemps, Jeffrey A L
- 1Martinez, Roberto Carlos
- 1Milad Kiaee Darunkola
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Spring 2014
A new aerosol particle classifier, the Aerodynamic Aerosol Classifier (AAC), is presented with some of its applications. The instrument uses a centrifugal force and sheath flow between two concentric rotating cylinders to produce a monodisperse aerosol classified by aerodynamic diameter. Since...
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Characterization of Aerosol Deposition in Children and Infants Using Idealized Extrathoracic Geometries
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This thesis describes a number of experimental studies performed with the common goal of characterizing pharmaceutical aerosol deposition in children and infants using idealized extrathoracic geometries. First, an in vitro study of the recently proposed Alberta Idealized Child Throat showed that...
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Characterization of Particulate Matter Morphology and Volatility for Two Direct-Injection Engines
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Particulate matter emitted from two direct injection engines has been characterized by morphology, volatility, mass-mobility exponent, effective density, and size distribution using tandem measurements from a centrifugal particle mass analyzer (CPMA) and differential mobility analyzers (DMA). The...
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Spring 2015
Colloidal-collector interactions are of fundamental importance in separation and filtration technologies. Here, the effect of collector grains on the behavior of colloidal particles was studied in two different experimental systems, i.e., column studies with stationary collectors and batch mixing...
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Development of Empirical Models to Predict Deposition of Aerosols in the Extrathoracic Airways of Children
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The experimental studies described in this thesis were performed with the goal of measuring deposition of aerosols, inhaled either nasally or orally, in the extrathoracic airways of children in different age groups. We pursued in vitro methods and characterized the deposition of aerosols in the...
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Improving Measurements of the Mixing State and Mass Concentration of Particulate Emissions from Aircraft Engines
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This research is focused towards improving techniques used to measure particulate emissions from aircraft engines, on two fronts: first, to characterize and quantify the mixing state of particulate emissions; and second, to calibrate black carbon mass instruments with a traceable mass...
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Spring 2018
The centrifugal particle mass analyzer (CPMA)-electrometer system has been proposed as an alternative method of calibration for devices that measure black carbon. This system is proposed to replace the current calibration standard of NIOSH 5040. The repeatability and intermediate precision of the...
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Fall 2018
The goal of this thesis work was to develop an idealized adult nasal airway geometry capably of mimicking average regional nasal deposition of droplets emitted from pharmaceutical nasal sprays. The first part of this thesis examined regional deposition within the nose for nasal sprays over a...
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Study of Enhanced Deposition due to Magnetic Field Alignment of Ellipsoid Particles Using Direct Numerical Simulations
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A recent in vitro study demonstrated a non invasive method to enhance local deposition in a small airway by controlling the angular position of magnetic high aspect ratio particles. This technique could mitigate the challenge of providing sufficient therapeutic effects when using aerosolized...
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Spring 2010
Heterogeneity of surfaces is often included in mathematical treatments of colloid transport and deposition as an afterthought, if at all. Most previous models of colloid transport and deposition have employed idealizations and simplifications such as assuming smooth collector surfaces with...