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 9 of 9 for “"Micromodels"”.
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Analysis of Solute Mixing at the Pore-Scale Using Micromodels and Lattice -Boltzmann Finite Volume Modeling
… of pore scale modeling and high-resolution 2D micromodels. To evaluate reactive transport, two reactive substrates are introduced into a network of pores via two separate and parallel fluid streams. The substrates mix within the porous media via transverse dispersion and react. In micromodel …
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Construction of green fluorescent protein plasmids for labeling of herbicide-degrading Delftia acidovorans MC1071
… from other D. acidovorans strains when grown in micromodels, allowing for monitoring of competition between MC1071 and other strains. The MC1071/pKNtfdgfp strain will allow distinction of active and inactive MC1071 biomass in micromodels, thus facilitating the study of bacteria adaptation in …
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Hierarchical material models with microstructure for nonlinear analysis of progressive damage in laminated composite structures
… a new class of constant deformation cell (CDC) micromodels is presented to synthesize the nonlinear response of a unidirectional lamina from the response of the micromodel subcells. Two structural modeling approaches for nonlinear analysis of laminated composites are utilized in this study. The …
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Development of photo-patterned composite structures in microchannels for oil reservoir research
… porous media micromodel experiments. With the micromodels developed in this way, we conduct oil-water two-phase flow experiments around a single cylindrical post with controlled oleophilic/hydrophilic wetting behavior.
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Analysis of Pore -Scale Nonaqueous Phase Liquid Dissolution in Etched Silicon Pore Network
… for the homogeneous and heterogeneous micromodels initially increased with water velocity but then leveled off to a relatively constant value. Also, these mass transfer coefficients varied with pore and NAPL blob geometry. Specifically, the mass transfer coefficient decreased with …
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Roles of surface interaction on Cryptosporidium parvum oocyst transport in subsurface environment
… point flow (RSPF) cell and 2-dimensional (2-D) micromodels. The quartz or natural organic matter coated quartz surfaces were used as collector in the RSPF cell. The cylindrical silica collectors or silica collectors coated with 0, 10, 20, 50 and, 100% Fe2O3 patches were firstly fabricated in …
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Immiscible liquid-liquid displacement in microfluidic channels : effects of wettability and geometry
… in oil-water-rock systems. Microfluidic devices, micromodels, have been proposed as experimental test beds for reproducing flows in oil reservoirs in laboratory environments since they offer fine control over geometry and chemistry, and therefore provide insights into their effects on the process. …
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3D printing-based microfluidics for geosciences
… printing setup, we can generate custom-designed micromodels accurately and repeatably with minimum pore-throat sizes of 140 µm. To enhance the management of subsurface engineering processes in multiscale porous media, containing fractures and matrix, it is crucial to comprehend the interaction …
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Bacterial transport and horizontal gene transfer in subsurface: multiple-scale experimental studies
… point flow (RSPF) cells, two-dimensional micromodels, and column experiments, and transformation assays for quantifying the natural transformation. The most important findings of this research are the following: 1) adsorbed DNA transforms bacterial cells in the presence of natural organic …