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 13 of 13 for “"Phase coupling"”.
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On the relationship between corticomuscular (EEG-EMG) phase coupling and muscular fatigue
… activities (also known as corticomuscular coupling). In every study, the standard method (coherence) used to measure the level of synchrony takes into account both the amplitude and phase of the two signals. However, the use of the phase lock value (PLV) has been over looked as a method for …
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Pattern formation through synchronization in systems of nonidentical autonomous oscillators
… which reduces general oscillatory systems to phase dynamics. The symmetry of the coupling plays an important role for the formation of patterns. We have studied the ordering influence of an asymmetry (non-isochronicity) in the phase coupling function on the phase profile in synchronization and …
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Adaptive Discontinuous Galerkin Methods Applied to Multiscale & Multiphysics Problems towards Large-scale Modeling & Joint Imaging
… and the stability in the dynamically multi-phase coupling interfaces. </p><p>In this study, I will present a multi-scale \& multi-physics 3D wave propagation simulator to tackle these grand scientific challenges. This simulator is based on a unified high-order discontinuous Galerkin (DG) …
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A one-way coupled DEM-CFD scheme to mode free-surface flows in tumbling mills
… description of the system requires two fluid phases (for slurry and air) and one solid phase (for the charge). Existing 3-phase work makes use of a purely particle-based description, coupling the discrete element method (DEM) for the solids with smoothed particle hydrodynamics (SPH) for the …
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Phase- and amplitude-coupling are tied by an intrinsic spatial organization but show divergent stimulus-related changes
… large-scale FC in electrophysiology. Phase coupling (PhC), defined as coupling between the phases of two signals, reflects the synchronization of rhythmic oscillation cycles. Conversely, amplitude coupling (AmpC), defined as coupling between the envelopes of two signals, reflects …
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Multi-segment coordination within the foot in children with and without clubfoot during walking, toe raises and single limp hopping
… was to assess kinematics, kinetics and joint coupling within the foot in children previously treated for clubfoot. Sixteen children with 23 affected clubfeet and 16 children without history of clubfoot underwent three-dimensional motion analysis using a multi-segment foot model, during three …
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Detailed population balance modelling of industrial titania synthesis
… the high computational cost of simulating strong phase-coupling, fast process rates, and broad particle size distributions. A novel hybrid particle model is developed to address these challenges. The hybrid particle model employs a univariate description of small particles and switches to a …
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Synthetic Studies Towards the Total Synthesis of Apoptosis Inducing Natural Products, Jahanyne and Opaliferin
… was synthesised using a modified Fmoc solid-phase synthesis strategy to effectively couple multiple sterically hindered N-methylated amino acids while suppressing epimerisation. Finally, a late-stage solution-phase coupling was employed to introduce the C-terminus ketone pyrrolidine moiety. …
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Terahertz oscillation and stimulated emission from planar microcavities
… laser modes in a photomixing experiment proves a phase coupling mechanism. This demonstrates the potential of the anisotropic cavity design for a passive or active component in a terahertz radiation source or frequency generator. Furthermore, microcavities with two and three coupled resonators are …
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Meshless Local Petrov-Galerkin method with Rankine source solution for two-dimensional two-phase flow modelling
A Lagrangian particle multiphase model based on the Meshless Local Petrov-Galerkin method with Rankine source solution (MLPG_R) is proposed to simulate 2D flows of two immiscible fluids. The model is applicable to fluids with a wide range of density ratio from 1.01 to 1000, capable of dealing with …
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Investigation of intracavity phase interferometry applied to nano-metrology
Intracavity phase interferometry is sensing technique developed at UNM, in which a physical quantity to be measured is put as integral part of a mode-locked laser. It relies on the fact that any intracavity phase shift of an intracavity pulse will result in a frequency change of the whole pulse …
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Phase dynamics of irregular oscillations
… Dissertation wird eine Beschreibung der Phasendynamik irregulärer Oszillationen und deren Wechselwirkungen vorgestellt. Hierbei werden chaotische und stochastische Oszillationen autonomer dissipativer Systeme betrachtet. Für eine Phasenbeschreibung stochastischer Oszillationen müssen zum …
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Exploring the neural mechanisms underlying the speech processing and phonological deficits that characterise individuals with dyslexia
… focused on the following neural measures: neural phase entrainment (delta, theta, beta, low gamma), cerebro-acoustic coherence (delta and theta), band power (delta, theta, beta, low gamma), event-related potentials (ERPs), and cross-frequency coupling, including phase-amplitude coupling (PAC) and …