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 13 of 13 for “"deposition pattern"”.
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INFLUENCE OF ELECTROSTATIC CHARGE UPON THE DEPOSITION BEHAVIOR OF PHARMACEUTICAL AEROSOLS WITHIN CASCADE IMPACTORS
… charge on aerosol particles may influence their deposition within the ACI, but experimental validation of the model is warranted. This dissertation investigates the influence of electrostatic charge upon the deposition behavior of aerosols within cascade impactors, to address the impact of charge …
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Analysis of Power Deposition Patterns and Ultrasonic Phased Arrays for Localized Hyperthermia
… the determination of the desired power deposition pattern for localized hyperthermic treatment and the potential for providing precision local hyperthermia by using ultrasonic phased arrays. A method for calculating ultrasonic fields and examples of field patterns produced by square …
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Assessing Spray Deposition and Weed Control Efficacy from Aerial and Ground Equipment in Managed Turfgrass Systems
… aerial application. Considering pesticide deposition accuracy is of utmost importance in managed turfgrass systems, a thorough examination of factors that influence ASD spray deposition patterns is needed. A python-based spray deposition pattern analysis tool, SprayDAT, was developed to …
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An Experimental Study of the Impinging and Freezing Dynamics of a Colloidal Droplet on Solid Surfaces
… differences were observed between the final deposition patterns formed through freeze-drying and evaporation methods. Our initial hypothesis, which proposed that the deposition pattern produced by the freezing-sublimation method would be uniform rather than exhibiting a coffee ring pattern, …
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Reservoir sedimentation in dryland catchments : modelling and management
… on storage in surface reservoirs and sediment deposition in these reservoirs affects adversely the water storage. In order to reproduce the complex behaviour of sediment deposition in reservoirs located in semi-arid environments and the effects of using sediment management techniques, a …
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Raman and Surface-Enhanced Raman Spectroscopy Imaging of Droplets: Characterization and Environmental Implications
… cloud nucleation. We also investigated virus deposition during sessile droplet evaporation using gold nanoparticles. SERS imaging enabled development of correlations between virus viability and droplet deposition pattern and related them in terms of the coffee-ring effect. Suppression of the …
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A Monte Carlo-based Model Of Gold Nanoparticle Radiosensitization
… developed based on the unique nanoscale energy deposition pattern around AuNPs. The ARP model incorporated detailed Monte Carlo simulations with experimentally determined parameters to predict AuNP radiosensitization. This model compared well to in vitro experiments involving two cancer cell …
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Effects of HZE Irradiation on Chemical Neurotransmission in Rodent Hippocampus
… possess high ionizing ability, dense energy deposition pattern, and high penetrance.</p> <p>Accumulating evidence suggests that radiation has significant impact on cognitive functions. In ground-base experiments, HZE radiation induces pronounced deficits in hippocampus dependent learning and …
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Interactions among flow, sediment deposition and aquatic vegetation in a channel
… The first study investigates flow structure and deposition pattern associated with a long patch of vegetation located at the sidewall of a channel (i.e. a partially vegetated channel). Along the flow-parallel edge of the patch, a shear layer is formed due to the velocity difference between the …
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Interaction of Clay Wash Load With Gravel Beds
… to gravel beds, where within the bed substrate deposition occurs, under what hydraulic conditions it occurs, and how the composition of the bed affects the spatial and temporal deposition pattern. Further, this study attempts to quantify the mass flux of wash load to the bed based on a simple …
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Mid- to Late Holocene flood reconstruction from two varved sediment profiles of pre-alpine Lake Ammersee (Southern Germany)
… current successively diminishes leading to the deposition of detrital layers on the lake floor. Intercalated into annual laminations these detrital layers can be dated down to seasonal resolution. Microfacies analyses and X-ray fluorescence scanning (µ-XRF) at 200 µm resolution were conducted on …
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Fused filament fabrication to manufacture three- and four-dimensional objects made of shape memory polymers
… standard FFF machines. Following this, the layer deposition pattern of tensile bars of TPU with shape memory properties was modified to achieve printing either in vertical or horizontal orientation. After processing commercially available polyester urethane and characterization, the mechanical and …
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Fundamental Study of Particle Formation, Transport, Deposition and Filtration for Semiconductor Applications
… process, particle formation, transport, deposition, and filtration studies should be simultaneously investigated. The objectives of this study were to 1) demonstrate particle formation in a particle-free environment, 2) investigate particle deposition and transport characteristics in …