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 9 of 9 for “"aperiodicity"”.
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Effects of Temporal Expectation on Complex Decision Making
… dimension of targets, testing degrees of aperiodicity and exploring the effects that prior knowledge about the temporal structure of a stimulus has on choice. Seven behavioural experiments are reported that implement the new experimental framework. Five use a complex auditory-spatial …
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Analysis of nonmodal glottal event patterns with application to automatic speaker recognition
… and jitter, diplophonia and triplophonia, and aperiodicity. Using temporal relationships between successive feature vectors, an algorithm by which to separate these different classes of glottal-pulse characteristics has also been developed.
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Phonon and electron transport through interfaces and disordered structures
… transport of phonons. We use the aperiodicity as a type of randomness to enhance phonon Anderson localization. Our calculation predicts that aperiodic Si/Si0.2Ge0.8 superlattice can induce coherent backscattering for low-frequency phonons and limit the contribution to transport of …
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Flow randomness and tip losses in transonic rotors
… due to a shock/boundary layer interaction. Aperiodicity, one category of randomness, is shown to increase with increasing inlet relative Mach number for the two axial-flow fans. Nonuniformity, another category of randomness, is shown to be independent of inlet relative Mach number for the …
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Greek Meter : An Approach Using Metrical Grids and Maxent
… Kiparsky’s recent proposal that the rhythmic aperiodicity that characterizes much early Greek verse is due to syncopation. It is shown that Kiparsky's theory, with some revisions, can be applied to the analysis of the metrical forms used by Sappho and Alcaeus. Chapter 6 argues against the …
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Phase Transitions in driven 1D and Quasi-Periodic 2D Optical Lattices
… from the interplay of disorder, in the form of aperiodicity, and interactions. In this regard, I will detail two experiments. The first experiment measures the ground state phase diagram of the quasicrystal as a function of both the lattice depth and interaction strength. The 2D optical …
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Designing and Fabricating 3D Nanostructures through Directed Self-Assembly of Block Copolymers
… has been discovered by simulation: defects and aperiodicity introduced in the base layer will propagate to subsequent layers to generate a multilayer aperiodic structure through layer-by-layer stacking. This approach enables inverse designs of various complex 3D nanostructures. In the first …
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Investigation et modélisation des tensions circonférentielles en simulation méridienne
… of turbulence, deterministic unsteadiness and aperiodicity on the mean periodic flow. These terms need to be modelled; it is the closure problem. Harmonic closure, which consists in solving a linearized perturbation system in the frequency domain, revealed to be an efficient method to …
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Breaking Symmetry: A Study of Novel Phenomena in Asymmetric Nanoplasmonic Systems
<p>Offering tailorable optical properties not achievable with symmetric or periodic optical materials, chiral, weakly disordered, deterministic aperiodic, quasiperiodic and random structures make up a new wave of asymmetric optical systems demonstrating unprecedented control of light compared to …