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 10 of 10 for “"Quasiperiodicity"”.
-
An Exploration of Nonlinear Locally Resonant Metamaterials with Electromechanical and Topological elements
… nonlinearity, electromechanical elements, and quasiperiodicity. The proposed metamaterial is examined using both analytical and numerical techniques in order to firmly establish the effects of each element. First, a nonlinear metamaterial with electromechanical local resonators is studied using …
-
Exploring recurrences in quasiperiodic systems
… visualization technique, Recurrence Plots(RPs). Quasiperiodicity is the simplest form of dynamics exhibiting nontrivial recurrences, which are common in many nonlinear systems. The concept of recurrence was introduced to study the restricted three body problem and it is very useful for the …
-
Modeling the interactions between the circadian clock, dopamine, and metabolism
… behaviors in the model, including periodicity, quasiperiodicity, and decoupling. We show that these behaviors are biologically meaningful and may help to explain clinically observed circadian or dopaminergic disruptions. In addition, experiments have suggested several links between the mammalian …
-
Geometry and Topology of Quantum States in Quasicrystalline Systems
… a hierarchy of additional gaps occur due to the quasiperiodicity, which also harbour corner-localised modes.
-
Forcing of globally unstable jets and flames
… frequencies, and there is beating, indicating quasiperiodicity. When forced at high amplitudes, however, it locks into the forcing. The critical forcing amplitude required for lock-in increases with the deviation of the forcing frequency from the natural frequency. This increase is linear, …
-
Studies on quasicrystals, superconducting micronetworks, and Josephson junction arrays
… and apply to both diagonal and off-diagonal quasiperiodicity. The second part of this thesis deals with analytical calculations of quasicrystalline diffraction patterns. The third part of this thesis deals with the diamagnetic properties of superconducting networks and Josephson junction …
-
Geometric Multimedia Time Series
… (TDA) to quantify degrees of periodicity and quasiperiodicity by looking at these shapes, and we show that this can be used to detect anomalies in videos of vibrating vocal folds. In the case of videos, this has the advantage of substantially reducing the amount of preprocessing, as no motion …
-
Wonderland of frustration: Magnetic moments and itinerant electrons on the pyrochlore lattice
… properties and provide an unusual example of how quasiperiodicity may emerge in a clean lattice system.
-
Some nonlinear problems in plankton ecology
… in the different dynamic regimes (periodicity, quasiperiodicity, and chaos)? I show that the spatial patterns of predator and prey can differ strongly from the environmental gradient. In the route to chaos, as diffusion becomes weaker, this difference is magnified and the populations display …
-
Hollow condensates, topological ladders and quasiperiodic chains
… fully-filled. Second, we analyze the effects of quasiperiodicity in one-dimensional systems. Distinct from truly disordered systems, these models exhibit delocalization in contrast to well-known facts about Anderson localization. We study the famous Aubry-Andre-Harper (AAH) model, a …