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 18 of 18 for “"Non-Ergodic"”.
-
Partitioning Uncertainty for Non-Ergodic Probabilistic Seismic Hazard Analyses
… are designed for long return period motions. Non-ergodic PSHA is a framework that allows for this proper accounting of uncertainties. This, in turn, allows for more informed decisions by designers, owners and regulating agencies. The ergodic assumption implies that the standard deviation …
-
Quantification of Uncertainties for Conducting Partially Non-ergodic Probabilistic Seismic Hazard Analysis
… are two indispensable parts of partially non-ergodic site-specific PSHA. Local site effects can be estimated using site response simulations or recorded ground motions at the site. When such predictions are available, the aleatory variability of ground motions used in PSHA can be changed …
-
Phase transitions in quasiperiodic and driven optical lattices
… This makes them an ideal context for studying non-ergodic behaviour, especially with the tunable interactions allowed by ultracold atom physics. At the same time quasicrystals have an intriguing link to higher dimensions, so that a two-dimensional quasicrystal can be used to simulate systems …
-
Multiscale probing of colloidal gelation dynamics
… of Differential Dynamic Microscopy (DDM) to non-ergodic media. We demonstrate uncoupled development of the structure and dynamics that reveals an intermediate stage of gel formation, and compare the DDM results with the rheological features of evolving gels. We finally show how understanding …
-
Shape and chemically anisotropic colloidal particles: A theoretical study of their structure, phase behavior, and slow dynamics
A detailed non-equilibrium state diagram of shape-anisotropic particle fluids is constructed. The effects of particle shape are explored using Naive Mode Coupling Theory (NMCT), and a single particle Non-linear Langevin Equation (NLE) theory. The dynamical behavior of non-ergodic fluids are …
-
On the Structure and Dynamics of Aluminophosphate Glass-forming Melts measured by Dynamic Light Scattering
… about the liquid's dynamics through the non-ergodic level, stretching exponent, and fragility. The fragility was shown to decrease with increased network connectivity and the result is identical to both ultraphosphates and chalcogenides. I argue that this pattern fits with predictions of …
-
Anomalous diffusion of mRNA in the cytoplasm of HeLa cells
… and power spectral density (PSD). We observed non-ergodic, subdiffusive behavior, with statistics that depend on observation time, i.e., aging. Additionally, we observe stochastic switching between two mobility states with an order of magnitude difference in diffusivity. This switching process …
-
Information theory of transmit diversity and space-time code design
… in fast fading channels. Then we consider non-ergodic channel, where we evaluate asymptotic expression for the outage probability and note its striking similarity with the error probability. After that, we consider a simple transmit diversity technique [7], and evaluate its achievable …
-
Estudo sobre a ocorrência de ressonâncias paramétricas numa plataforma TLWP próxima a um FPSO em ondas irregulares
… results show that the system is strongly non ergodic and also presents parametric resonances.
-
Linear Programming Decoding for Non-Uniform Sources and for Binary Channels With Memory
… its application to scenarios with source non-uniformity and to decoding over channels with memory. We develop two decoders for the scenario of non-uniform memoryless sources transmitted over memoryless channels. The first decoder uses a modified linear cost function which incorporates the …
-
Networking from a network coding perspective
… for network management for recovery from non-ergodic link failures, based on the very general network coding concept of network behavior as a code. This provides a way to quantify essential management information as that needed to switch among di®erent codes (behaviors) for di®erent …
-
Observing the 2D Bose glass in an optical quasicrystal
… localisation transition in the ground state of non-interacting and weakly interacting Bose gases in a 2D quasicrystalline lattice. The second experiment is mainly performed in the non-interacting limit, in which we probe the localisation transition by employing triangular lattice pulses and …
-
The development and application of statistical sampling regime to map out hydrocarbons in sediments.
… shows that the regionalized variables exhibited non-stationarity and were non-ergodic. The stratified random sampling scheme showed significant advantages over a classical grid sampling scheme when applied to the same area. Specifically, the stratified random sampling design gave much more …
-
An information theoretic study of modeling and control of dynamical systems
… fundamental performance limitation in control of nonlinear systems. It consists of three coherent, closely related studies where the unifying theme is the use of information theoretic tools to investigate modeling and control issues in dynamical systems. The first study focuses on entropy based …
-
On the role of mixing in controlling transport of aqueous species in heterogeneous formations
… investigate the complex interplay among velocity non-uniformities, local dispersion and reaction rates at increasing levels of physical heterogeneity. We also compare the effects of different local dispersion models and injection modes (uniform vs non-uniform), still analyzing the results on a …
-
Many-body localization and tensor networks
… 1 is a detailed discussion on the MBL phenomenon. Chapter 2 gives an introduction to the numerical techniques that are frequently used in studying many-body quantum systems. Chapter 3 studies the shift-and-invert matrix product state method for obtaining highly excited states of MBL systems. …