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 59 for “"aerosolized"”.
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The Recovery and Transfer of Aerosolized Listeria Innocua
… to contaminate a surface after it has become aerosolized in a bioaerosol chamber and a walk-in cooler. L. innocua was nebulized into a 154 L biosafety chamber (~5 log CFU in 1 mL) at two relative humidity (RH) levels (83% and 65%). Oxford Listeria agar plates, stainless steel coupons and …
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Combustion of aerosolized spherical aluminum powders and flakes in air
Combustion rates and completeness of aerosolized spherical aluminum powders and flakes are compared using constant volume explosion experiments. The comparison of particles and flake sizes was made based on their specific surface areas determined using the Brunauer-Emmett-Teller (BET) method and …
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Experimental technique for optimizing aerosolized vaccine efficacy by Erika J. Sandford.
… vaccination via injection. These advantages make aerosolized vaccinations a realistic alternative to traditional injection vaccines for the developing world, where cold chain systems are impractical and the use of hypodermic needles can be unsafe. However, more research is needed to determine …
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Comparison of Two Aerosolized Bronchodilators in the Treatment of Severe Equine Chronic Obstructive Pulmonary Disease
Aerosolized bronchodilator drugs are commonly used for treatment of horses with chronic obstructive pulmonary disease. Relative efficacy of sympathomimetic and parasympatholytic bronchodilators for relief of acute airway obstruction and improvement of pulmonary gas exchange was compared in 6 horses …
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Catching a glimpse: the visualization of Mycobacterium tuberculosis from TB patient bioaerosols
… this, little is known about how and when Mtb is aerosolized nor the key metabolic and morphological determinants driving successful transmission. To address these knowledge gaps, my doctoral research sought to develop a microscopic method for the detection of aerosolized Mtb following …
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Real Time Biological Threat Agent Detection with a Surface Plasmon Resonance Equipped Unmanned Aerial Vehicle
… and then quantify the concentration of an aerosolized biological agent in real-time. A sensor operator ran the SPR unit through a groundstation laptop and was able to wirelessly view detection results in real time. An aerial sampling mechanism was also developed for use with the SPR sensor. …
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Chemoprevention of Lung Carcinogenesis: Aerosol Administration and Deposition in the Mouse Lung
… or in combination. The compounds were aerosolized with a custom-built Collison atomizer. The resultant drug aerosols were delivered to the mice that were retained in a nose-only exposure chamber. Four small molecular inhibitors: gefitinib, erlotinib, lapatinib and wortmannin), and four …
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Airborne Nanoparticles: Generation, Characterization, and Occupational Exposure
… studies, robust methods are needed to generate aerosolized engineered nanoparticles. We conducted a set of field studies to measure the fine particle mass concentrations (PM2.5) as well as nanoparticle number concentrations and size distributions in two nanomaterial manufacturing facilities. …
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Getting out of the water and into the air: Understanding aerosolization of the bacterium Pseudomonas syringae from aquatic environments
… of microorganisms, some of which may be aerosolized and transported long distances through the atmosphere. The bacterium Pseudomonas syringae can be found in aquatic environments and in the atmosphere and may express an ice nucleation protein (bacteria expressing the protein are Ice+ and …
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New virulence mechanisms in Yersinia pestis, the plague (Black Death)-causing bacterium: A re-emerging and bioterror pathogen
… plague in humans, it is commonly thought that aerosolized Y. pestis will be utilized during a biowarfare attack. Therefore, the purpose of this work was two-fold: to assess the changes in virulence attributable to the deletion of a chromosomal element and a virulence plasmid; and to investigate …
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Aerosolization and Atmospheric Transformation of Engineered Nanoparticles
… were likely to physically or chemically alter aerosolized CNPs and demonstrated their relevance to CNP behavior and toxicity in the aqueous and terrestrial environment. In order to investigate the transformations of CNP aerosols under controlled conditions, we developed an aerosolization …
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Emission of Insoluble Mineral Particles from Ultrasonic Humidifiers
… in source water, they will be transported in aerosolized waters.
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Numerical investigation of airflow and aerosol deposition characteristics within human airways
Aerosolized drug delivery in human airways is typically used for the treatment of several pulmonary diseases. In this study, large-eddy simulation (LES) is used for the numerical investigation of the airflow and the aerosol deposition characteristics within the upper human airways. LES is performed …
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Hydroxyl Radical Production via Acoustic Cavitation in Ultrasonic Humidifier Systems
… can be heard by humans (> 20,000 Hz) to generate aerosolized water also have potential for inducing sonochemical reactions for chemicals present in water. This research focuses on examining oxidants formed within ultrasonic humidifiers, as well as the oxidants effects of contaminants in water used …
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Understanding the Role of Dendritic Cell Subsets in the Generation of a CD8+ T Cell Response Following Pulmonary Vaccinia Viral Infection
… a large number of viruses which spread via aerosolized droplets. In order for the body to mount an adaptive immune response to a pathogen, T cells circulating through lymph nodes (LN) must be alerted to the presence of infection in the periphery. This occurs as a result of presentation of …
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Isolation of Legionella Pneumophila From Well-Maintained Emergency Showers and Eyewash Stations
… disease, and is commonly transmitted via aerosolized water. Legionella colonization of emergency eyewash and shower stations may pose an exposure hazard to users of these stations. There is little information about the role of these stations as significant reservoirs for Legionella. …
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Preparation, ignition and combustion of reactive metal-sulfur nanocomposites
… spark ignition is magnesium-sulfur composite. In aerosolized combustion experiment, magnesium-sulfur exhibits the highest burning efficiency and highest rate of pressure rise. Materials with larger particle sizes appear to have longer ignition delays. Shorter burn times measured in the …
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Assessing Human Exposure to Emissions from Ultrasonic Humidifiers
… but they simultaneously add exposure risks of aerosolized metals from drinking water used as fill water. The inhalation exposure from emitted metals can be overlooked, and thus, co-exposure of inhalation and ingestion and co-exposure to multiple inorganic metals is investigated. The objectives …
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Creation and validation of an enhanced in vitro model of the lungs
… mostly includes studies on characterization of aerosolized formulations in terms of their aerodynamic properties and particle size, and also in vitro, ex vivo and in vivo evaluation of the efficacy and the pharmacokinetic and pharmacodynamic properties of the formulations. However, a need is …
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Signal variation in single particle aerosol mass spectrometry
… rapidly records dual-polarity mass spectra of aerosolized micro-particles. However, the accuracy of the BAMS system is limited by various uncertainties, resulting in shot-to-shot variations in the mass spectra. I found that the variations in mass peak areas in BAMS spectra were significantly …
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