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.
Results
Showing 1 to 20 of 31 for “"Transport modelling"”.
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Advancing transport modelling for health applications
The design of cities and transport systems influences population health. The way we move affects pollution exposures, traffic injury risk, physical activity, and many other determinants of health and well-being. The causal mechanisms are complex leading to micro-scale variations in health depending …
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Multi-modal public transport modelling under traffic disruptions
… study presents a novel integrated multi-modal modelling framework for dynamic public transport (PT) networks, addressing the limitations of single-mode analysis in disruption impact assessment. Our approach extends the traditional Gravity Models-based OD estimation method by incorporating …
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Solute Transport Modelling of Latrobe Valley Ash Disposal Sites
… in evaluating the mechanisms which lead to the transport of solutes from ash disposal and develops a methodology to quantify their potential long term impacts on groundwaters beneath a disposal site. The Loy Yang power station is used as a case study. A detailed literature review is presented on …
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Sediment transport modelling at the catchment scale in Alpine streams
… In this context, new advances in sediment transport modelling acquire a relevant role, especially in mountain streams. The work of the present Ph.D. thesis mainly focuses on new methodologies to enhance sediment transport modelling at the catchment scale. In particular, the present work …
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Tritium transport modelling and experimental validation in liquid metal nuclear power plants
L'abstract è presente nell'allegato / the abstract is in the attachment
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Water flow and heat transport modelling at the interface between river and aquifer
… to the detailed, fully-integrated 3D numerical modelling of water and heat flux at the reach scale. All techniques were applied in order to characterize exchange flux between stream and groundwater, hyporheic flow paths and temperature patterns. The study was conducted at a reach-scale section …
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Incorporation of micro-level analysis in strategic urban transport modelling: with a case study of the Greater Beijing
… and regions are suffering from severe urban transport problems arising from accidents, congestion, air pollution, rising carbon intensity, and chronic under-funding of infrastructure and services. The problems make those cities the most polluted and often the least liveable. Strategic …
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Numerical modelling of hydrodynamic and solute transport processes in shallow water environment
This thesis studies the numerical modelling of a range of hydrodynamic, solute transport and biochemical reaction processes in shallow water environment, combining both Euler and Lagrangian techniques. The research consists of two parts: the rapid flow modelling and the solute transport modelling. …
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HYDROGEOLOGICAL CHARACTERIZATION OF A LEGACY WASTE STORAGE SITE AND THE CHALLENGE OF COMMUNICATING UNCERTAINTY
Analytical groundwater and contaminant transport models rely on estimates of hydrogeological parameters that can range from two to three orders of magnitude. The effect parameter variability has on the results of groundwater and contaminant transport modelling was assessed for a legacy nuclear …
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Computational fluid dynamics modelling of dissolved oxygen in oxidation ditches.
… on the Computational Fluid Dynamics (CFD) modelling of wastewater aeration tanks. This study develops a CFD model of an aerated oxidation ditch, by taking into account two-phase gas-liquid flow, inter- phase oxygen mass transfer and dissolved oxygen. The main contributions to knowledge are …
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Computational Fluid Dynamics Methodologies for Simulation of Chemical Oxygen-Iodine Laser Flowfields
… model to ensure accurate molecular diffusion transport modelling. Additionally, a 13 reaction, 10 species finite rate chemistry model was developed with the GASP thermo-chemical database for use with chemistry modelling capability. A series of 3-D simulations of the COIL flowfield were …
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Basalt alteration and its consequences
… three distinct Earth environments using reactive transport modelling coupled to geochemical analyses. The weathering of basalt creates unique chemical environments that can drive carbonate mineral precipitation and other secondary mineral formation. The extreme reactivity of basalt, with very fast …
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Quantifying the health and economic impacts of mercury : an integrated assessment approach
… The assessment framework integrates chemical transport modelling, exposure and health impacts modelling, and general equilibrium modelling of the US economy. As a case study, the framework is used to evaluate the benefits of the Mercury and Air Toxics Standards-a recent US regulation that …
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Investigation of a stochastic solute transport model and development of inverse methods in hydrogeology
… encompasses two aspects of stochastic solute transport modelling in porous media. One part is dedicated to investigating a stochastic transport model. In the second part, two types of inverse methods are developed to solve the inverse problem in stochastic contaminant transport modelling of …
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Biogenic acid corrosion of sewer concretes with different binders: in-situ and model studies, with advancement of the life factor prediction method
… treatment plants. Since these sewer systems transport large volumes of sewage and are invariably buried under the ground, concrete pipes are customarily used. Concrete is widely known as a robust, flexible, and durable material in many aggressive environments, yet it can suffer from severe …
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Nanostructured Thin Film Synthesis by Aerosol Chemical Vapor Deposition for Energy Storage Applications
… via experimental studies and electrochemical transport modelling. Results demonstrate the exceptional performance of the single crystal one-dimensional nanostructures over granular structures, due to a combination of high surface area, improved lithium diffusivity and electronic conductivity. …
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Modelling the impact of geochemical reactions on oil recovery and scale management in chemical Enhanced Oil Recovery (cEOR) flooding processes
… geochemical reactions occur during the transport of the EOR chemicals in the reservoir, and involve components in the aqueous, oleic and rock phases. These reactions are studied by means of fully coupled reservoir and geochemical calculations, and using data available from the …
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Novel Insights into the Hydrogeochemical Evolution of Groundwater within the Transboundary Milk River Aquifer
… discrete fracture network groundwater flow modelling, ⁸¹Kr average groundwater age dating, major ion chemistry, stable isotope systematics, and analytical solute transport modelling. Fracture analysis identified two dominant sub-vertical fracture sets: a primary northwest-southeast set and a …
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Influence of pH and NOM on Sorption of Phenols onto Aquifer Material
… role as retardation mechanism in subsurface transport of organic water constituents. Geosorption behaviour of Ionisable Hydrophobic Organic compounds (IHOCs) especially influence of dissolved natural organic materials on their sorption coefficients is poorly investigated. In this study …
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