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 51 for “"scale interactions"”.
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Scale Interactions within a Perturbed Plane Wall Jet
… wall turbulence by targeting the large-scales of the flow. In wall turbulence the large-scales of the flow interact with the smaller scales in a non-linear manner including through a process of amplitude and frequency modulation. A plane wall jet (PWJ) is chosen as the model flow field …
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Micro-scale interactions between chemotactic bacteria and algae
… under this model. Recent identification of microscale (<1cm) nutrient patches, such as those produced by algal exudates, explain a potential for these evolved functions. With this new model for the pelagic zone, bacteria, through chemotaxis and motility, can sense and respond to microscale carbon …
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Multi-scale interactions leading to tropical cyclogenesis in sheared environments
… because TC development involves a wide range of scales from the stochastic convective scale to a quasi-balanced large-scale flow. This dissertation examines the factors that increase uncertainty around the multi-scale tropical cyclogenesis problem, namely, vertical wind shear (VWS), environmental …
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Resolution of grain scale interactions using the Discrete Element Method
… mounting evidence showing that shape at multiple scales (sphericity, angularity, and friction) plays a role in granular material behavior. This thesis contributes a new non-spherical representation to model particles as ellipsoidal bodies. This is validated and benchmarked against current …
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The Madden-Julian Oscillation and the diurnal cycle over the Maritime Continent: scale interactions and modelling
… the greatest variability on intra-seasonal time scales: large-scale (�107 km2) active and suppressed convective envelopes propagate slowly (�5 m s-1) eastwards between the Indian and Pacific Oceans. High-resolution satellite data show that a strong diurnal cycle is triggered to the east of the …
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Climate change impacts on macro and micro scale interactions between a tropical herbivore and temperate kelp forests
… structure and function by altering species interactions. Changes to species interactions are partly driven by shifts in species distributions. For example, warming and strengthened currents are facilitating the poleward movement of tropical herbivores into temperate reefs by opening up …
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The Multi-Scale Dynamics of Executive Function
… cognitive control arises from physical interactions across many different timescales within the system. College and preschool aged participants were asked to complete a simple executive function task, card sorting. We found that multi-scale physical interactions differed depending on …
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A three dimensional generalized finite element method for thin fibers embedded in a continuum
… while simultaneously accounting for multi-scale interactions would undermine the feasibility of available FEM for such models. This research project formulates and implements a multi-scale Generalized Finite Element Method (GFEM) using global-local enrichment functions (GFEM^{gl}) to …
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Biologically Interpretable Representation Learning for Mechanistic Insights into Cancer Immunotherapy Resistance
… cancer therapy, driven by complex, multi-scale interactions that current biomarkers often fail to capture. This dissertation introduces the Biologically Disentangled Variational Autoencoder (BDVAE)—an interpretable deep learning framework designed to uncover mechanistic drivers of ICI …
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Embodied Interfaces for Interactive Percussion Instruction
… called Percussive. Through the use of body-scale interactions, percussion students can connect with pedagogical tools at the most fundamental level−leveraging muscle memory, kinesthetics, and embodiment to present engaging and dynamic instructional sessions. The major contribution of this …
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El Milagro De Almeria, Espana: A Political Ecology of Landscape Change and Greenhouse Agriculture
… industry. The research focuses on local-global scale interactions and environmental history analysis within a political ecology framework. The methods for data collection included literature review of secondary sources and four months living in Almería conducting interviews and field …
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El Milagro De Almeria, Espana: A Political Ecology of Landscape Change and Greenhouse Agriculture
… industry. The research focuses on local-global scale interactions and environmental history analysis within a political ecology framework. The methods for data collection included literature review of secondary sources and four months living in Almería conducting interviews and field …
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Peculiar perovskites: Unraveling the unique optical response of hybrid organic-inorganic perovskites from first principles
… and LHOPs are hosts to fascinating microscopic interactions that influence their macroscopic optical and electronic properties. Researchers still debate how interactions between optically excited charge carriers, free-carriers, lattice vibrations, and atomic geometry influence the measured …
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Interdependent diffusion : the social contagion of interacting beliefs
… to explain the mechanisms by which micro-scale interactions between beliefs lead to macro-scale outcomes for societies. The third paper reports an online laboratory experiment to test whether the predicted theoretical outcomes hold when the decision rules of simulated agents are replaced …
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Order in side-chain liquid crystalline diblock copolymers
… order on two different but interdependent length scales. Through molecular-scale interactions, liquid crystalline moieties self-assemble into a variety of mesophases, and on a larger length scale, chemical differences between the two blocks can result in phase-segregated block copolymer …
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Effective and Efficient Methodologies for Social Network Analysis
… to analyze structural information contained in interactions between social entities. Many SNA technologies and methodologies have been developed and have successfully provided significant insights for small-scale interactions. However, these techniques are not suitable for analyzing large social …
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Length-Scale Effects on Nano-Scale Materials Behavior
… cannot explain the elastic behavior at the nano-scale and we propose a mechanism based atomic-scale interactions. (3) In-situ TEM tests show that below a transitional length-scale (50 nm grain size for aluminum), dislocations cease to exist in the grain interiors. Absence of both dislocation and …
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Covering Shock Wave Induced Interfacial Mixing: Numerical Study and a Control Primer
… gives a better depiction of the small-scale interactions but spherical cases are only quickly addressed. The main effect is the vortex stretching affectation on the vorticity evolution. Furthermore, mixing layers in 3D spherical simulations are found to be wider than its 2D simplified …
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Urban Herders: An Archaeological and Isotopic Investigation into the Roles of Mobility and Subsistence Specialization in an Iron Age Urban Center in Mali
… Jenné-jeno. Furthermore, the importance of small-scale animal husbandry within the subsistence economy challenges prior assumptions of specialized subsistence economies at Jenné-jeno. While the excavations and the human and animal isotopic data presented here reinforce the importance of Jenné-jeno …
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Laboratory Experiments Investigating Entrainment By Debris Flows
… Other considerations have included particle-scale dynamics, such as the “granular temperature” (kinetic energy associated with particle velocity fluctuations). We investigate how total and instantaneous entrainment and deposition vary with macroscopic stresses and particle-scale interactions …
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