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 8 of 8 for “"spatial heterogeneities"”.
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Characterization of catalyst pellets using NMR and MRI: MRI, diffusion and relaxation measurements of liquid imbibed in alumina and titania extrudates
… in the pellets and exploring the presence of spatial heterogeneities formed in the manufacturing process. Measurements have been done both in bulk, i.e. spatially unresolved, and at high spatial resolution. Measurements have been used for comparison with standard bulk pellet characterization …
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Turning a problem into a solution: heterogeneities in soil hydrology
… commonly recognized that soil moisture exhibits spatial heterogeneities occurring in a wide range of scales. These heterogeneities are caused by different factors ranging from soil structure at the plot scale to land use at the landscape scale. There is an urgent need for effi-cient approaches to …
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Mechanical and geological controls on the long-term evolution of normal faults
… relation between along-axis fault continuity and spatial heterogeneities in lithospheric thickness at a ridge segment.
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Estimating scale dependence of saturated hydraulic conductivity in soils
… of flow and transport is attributed to spatial heterogeneities, such as pore-size distribution and pore connectivity at small scales (e.g., core), fracture orientation and long-range correlations at large scales (e.g., field). In this study, we apply concepts from percolation theory to …
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Hydrologic modeling using triangulated irregular networks : terrain representation, flood forecasting and catchment response
… models are modern tools for capturing the spatial and temporal variability in the land-surface hydrologic response to rainfall and understanding the physical relations between internal watershed processes and observed streamflow. This thesis presents the development and application of a …
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Reactor agnostic multi-group cross section generation for fine-mesh deterministic neutron transport simulations
… novel methods that use MC to generate the fine-spatial mesh MGXS that are needed by high-fidelity transport codes. These methods employ either engineering-based or statistical clustering algorithms to accelerate the convergence of MGXS tallied on fine, heterogeneous spatial meshes by Monte …
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Impact of bark beetle infestation on water quality and hydrology in the Rocky Mountain West, The
… responses; however, the different temporal and spatial patterns of bark beetle infestations due to different beetle and tree species lead to inconsistent infestation impacts. Climatic variations and large-scale watershed responses provide a further challenge for predictions due to spatial …
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Three papers in regional economics: energy productivity convergence, water resource planning, and workforce occupation-industry dynamics
… natural resource and human capital, by taking spatial heterogeneities and relationships into consideration. The first paper empirically tests the trade-facilitated technology spillovers in the convergence of energy productivities at the disaggregated manufacturing sectors across European Union …