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 20 of 24 for “"Universal Behavior"”.
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Non-universal behavior of intermittent flow in microplasticity
… and scale-free “dislocation avalanche” behavior during deformation. The scale-free nature of these deformation events means that they have no well-defined mean, and therefore are somehow fundamentally incompatible with a model based on averaged quantities. In order to describe collective …
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On the collective model of glasses at low temperature
The universal behavior of insulating glasses at low temperature, compatible with but not explained by the tunnelling two level (TLS) model is reviewed. Recent non-equilibrium dielectric experiments on the capacitance of glasses are analyzed within the framework of the TLS theory. The prediction of …
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Exploring Interacting Bose Gases in and out of Equilibrium
… tantalizing possibilities, including emergent universal behavior set solely by the gas density and novel forms of superfluidity. However, the strong interactions also lead to a complex interplay between coherent and dissipative dynamics. By disentangling these two processes, we have caught a …
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Low-temperature thermal expansion of amorphous solids
… that thermal expansion also exhibits this universal behavior. The development of a dilatometer cap- 12 able of resolving sample strains as small as 10 has permitted measurement of the linear thermal expansion of various glasses below 1 K. These investigations ha\""e demonstrated, however, …
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Solution of sign and complex action problems with cluster algorithms
… transition line is investigated and the universal behavior at its critical endpoint is studied.
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Quantics Tensor Trains: The Study of a Continuous Lattice Model and Beyond
… as expected, but the weak measurement displays a universal behavior independent of the field applied. There are 3 different appendices containing technical discussions about the dependence of the bond dimension with temperature, and the compressibility of certain functions.</p>
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Identifying Emotional and Behavioral Difficulties Among English Language Learners
… be at higher risk for developing emotional and behavioral difficulties due to their limited English proficiency. As a result, the present study examined the identification of emotional and behavioral risk (EBR) among ELLs and non-ELLs through the use of universal behavior screening measures. The …
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Time dependence of nonlinear flow dynamics of near hard sphere suspensions
… modulus. At low frequencies where the viscous behavior dominates, the onset of nonlinearities is driven by increases in rate of strain. At higher deformation frequency, where suspension mechanics is dominated by an elastic response, the nonlinear responses occur when deformation exceeds a …
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Viscosity Modeling of Complex Fluids
… terminal hydroxyl groups based on the observed universal behavior, offering a unique approach to modeling the complex behavior of such systems. The advances presented in this dissertation furthered the current understanding and expanded the available options for the viscosity modeling of complex …
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Fractality and topology of optical singularities
… singularities in random optical fields exhibit universal behavior. It is also established that a random superposition of plane-waves, such as optical speckle, form singularities which not only map out fractal lines, but create topological features within them. These topological features are rare …
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Euclidean Dynamical Triangulations: Running Couplings and Curvature Correlation Functions
… couplings is subtracted, the correct infrared behavior is recovered, and the relevant coupling appears to approach a fixed point in the ultraviolet. With only one relevant coupling, the theory is maximally predictive, requiring only a single dimensionful input to set the lattice scale, and all …
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Feedback Control Theory in Stochastic Dynamical Systems
… interacting components which includes stochastic behavior. Feedback control theory is designed to use information from the current state of the system in order to temper the final state toward the desired outcome. In this dissertation, I perform studies on two choices of classic and quantum …
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Coevolutionary dynamics under anthropogenic impact in intensively managed landscapes
… features of alluvial river valleys, which reveal universal hydrologic attributes for distinguishing the terraces and floodplains; and (ii) investigate the soil organic carbon (SOC) dynamics in intensively managed landscapes, which have accelerated soil erosion, through modeling and simulation of …
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Evolution of the excitation spectrum of cuprate superconductors with doping and temperature
… order parameter. However, these spectra show a universal low energy excitation spectrum, indicating that the pairing strength near the nodes is independent of doping. The transition temperature Tc in this doping regime correlates with the fraction of the Fermi surface over which the samples …
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The Influence of Nonadsorbed Polymer on the Behavior of Weakly Flocculated Suspensions
… of the MCL model. Substantial shear thickening behavior was also displayed by these weakly flocculated suspensions. Such behavior was considered unusual given that shear thickening has been associated with stable, monodisperse systems. Hard sphere scaling analyses were invoked which revealed …
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Some Aspects of Fluctuation Driven Phenomena
… of patterns in biological systems, to the behavior of phase transitions and universality classes, to quantum computers. In this dissertation, we delve into the peculiar phenomena driven by fluctuations in the following scenarios: We study the near-equilibrium critical dynamics of the O(3) …
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Structure, slow dynamics, kinetic arrest, and massively reconfigurable assembly in colloidal suspensions
… and percolation boundaries suggesting highly non-universal behavior. In Chapter 3 we develop and apply a statistical dynamical theory for dense isotropic sphere-rod mixtures as a function of attraction strength, aspect ratio, and composition. Up to seven transiently localized phases are predicted …
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Fluid-fluid displacement in porous-media microfluidics
… viscous than the defending fluid), we find a universal behavior of the dynamic contact angle—a macroscopic descriptor of interface shape—which increases monotonically with capillary number. In contrast, for viscously unfavorable displacements, we observe a sharp wetting transition where the …
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Asymptotically nonliner oscillatory shear: theory, modeling, measurements and applications of nonlinear elasticity to stimuli-responsive composites
… the cone. Using a fourth order fluid expansion, universal frequency scaling and interrelations are derived for asymptotic nonlinearities in the terminal regime, defined by the limit of De<<1. Experimental measurements, consistent with such predictions, are presented for an entangled polymer melt …
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Quantitative light imaging of intracelluar transport
… of the intracellular transport. Our data show a universal behavior where the intracellular transport is diffusive at small scales and deterministic at large scales. We further applied this method to studying transport in neurons (Chapter 4). By modifying a traditional phase contrast microscope, …
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