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 12 of 12 for “"active fluids"”.
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Dynamics Of Orientable Particulate Suspensions: Continuum Simulations Of ‘Living’ Fluids And Meso-Scale Simulations Of Anisotropic Particle Suspensions
… different suspension problems - continuum scale 'active fluids' contain living cells that can respond to external stimuli such as light; and passive fluids contain anisotropic particles whose size is small enough that non-continuum effect caused by solvent needs to be accounted for. In the first …
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An Electrochemical Sensor Development Platform: Applications of System Identification to Biological Sensing in Evolving Fluids
Biologically active fluids dominate living systems, from human blood to global agriculture. Characterizing the growth of microorganisms within these biofluids is of key importance from scientific roles identifying pathogens and their biochemical behavior to industrial applications in food safety, …
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Collective Phenomena in Active Systems
… investigates collective phenomena in active systems of biological relavance across length scales, ranging from intracellular actin systems to bird flocks. The study has been conducted via theoretical modeling and computer simulations using tools from soft condensed matter physics and …
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Design and analysis of active fluid-and-cellular solid composites for controllable stiffness robotic elements
… of cellular solids impregnated with active fluids-were be designed to have controllable stiffness to take the form of a continuous body of a soft robot. This represents an improvement compared to past efforts in soft robotics, which often involved modifying the infrastructure of …
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Mathematical modelling of active nematic liquid crystals in confined regions
… and modelling techniques of liquid crystalline fluids to the area of anisotropy and self-organisation derived from active agents. The research involves a continuum description of anisotropic active fluids, using adapted forms of continuum hydrodynamic theories of liquid crystals.;We first …
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Active lubricant-impregnated surfaces
This thesis presents the design and testing of actively controlled lubricant-impregnated surfaces for enhanced droplet mobility and manipulation. Droplet manipulation and mobility on non-wetting surfaces is of practical importance for diverse applications ranging from micro-fluidic devices, …
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Generalized Navier-Stokes equations for active turbulence
Recent experiments show that active fluids stirred by swimming bacteria or ATPpowered microtubule networks can exhibit complex flow dynamics and emergent pattern scale selection. Here, I will investigate a simplified phenomenological approach to 'active turbulence', a chaotic non-equilibrium …
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Multi-Scale Probing of Colloidal Sedimentation Dynamics in Active Suspensions
… the sedimentation of passive particles within active fluids. Lastly, I explored the interactions between particles and bacteria in the presence of gravity, uncovering that bacterial-induced convective motions reduce the convective transport of colloidal particles. By increasing bacterial …
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Learning and investigating phenomenological models for active matter
Active matter, such as a suspension of swimming cells or colloidal particles, or even a flock of birds, consists of self-propelled units that convert stored or ambient free energy into motion. Recent advances in high-resolution imaging techniques and particlebased simulation methods have enabled …
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Dynamics and Mechanics of Zebrafish Embryonic Tissues
… one needs a continuum description in terms of active fluids. Taking into account that the number of cells is fairly small, a complete coarse graining is not possible, and a characterization of both mesoscopic (individual cell motion) and macroscopic (flow) behavior is required for a full …
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Describing motions in biological tissues: a continuum active model and improving measurements
… as conditioned by the magnitude of active traction and the growth kinetics. We are also able to derive predictions for the tumour size at the onset of metastasis, and predictions for the number of subsequent invasive fingers. Microscopy-based techniques are essential for observing …