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 20 of 77 for “"Dynamical Models"”.
-
Bayesian inference of stochastic dynamical models
… methodology for Bayesian inference of stochastic dynamical models is developed. The methodology leverages the dynamically orthogonal (DO) evolution equations for reduced-dimension uncertainty evolution and the Gaussian mixture model DO filtering algorithm for nonlinear reduced-dimension state …
-
Dynamical models for novel diffraction techniques in SEM
… of SEM requiring minimal sample preparation. Models for diffraction in the SEM are still being developed and improved, hence in this work I explore the physics and implementations of such models. I focus on the two main branches of SEM diffraction techniques:incident beam channelling, or …
-
Integrated dynamical models of down-the-hole percussive drilling
… to evaluate drilling performance, based on the dynamical interaction of the subprocesses underlying drilling, is evident. Such an approach requires simplified models, however, as the computational cost associated with full scale models is simply unbearable. In this thesis, three dynamical …
-
Dynamical models, chemo-mechanical coupling and numerical recipes for some soft biological systems
… macroscopic tissue level, complex interspecific dynamical models also enable to gain further insights into interactions between different cell populations governing mass development in inhomogeneous microenvironments as the tumor stroma. In fact, through spatio-temporal equations incorporating …
-
Shape Dynamical Models for Activity Recognition and Coded Aperture Imaging for Light-Field Capture
… in nature, a whole class of patterns that dynamically evolve over time. Human activities, behaviors of insects and animals, facial expression changes, lip reading, genetic expression profiles are some examples of patterns that are dynamic. Models and algorithms to study these patterns must …
-
Algorithms for passive dynamical modeling and passive circuit realizations
… design stages. Such simulations rely on accurate dynamical models. Linear passive components are described by their frequency response in the form of admittance, impedance or scattering parameters which are obtained by physical measurements or electromagnetic field simulations. Numerical dynamical …
-
Fault Detection and Identification of Large-scale Dynamical Systems
… widely applied in industry where high-quality dynamical models need to be developed for process optimization. In the fault detection and identification field, it is less common to see a model-based approach given the cost justification in developing a high-quality dynamical models, therefore …
-
Analysis of B Meson Decays to Three Charged Pions
… couplings in the CKM matrix. They also test dynamical models for hadronic B decays. Based on a sample of 772 million BB pairs collected by the Belle experiment, we present a study of direct CP violation in the decay of charged B to three charged pions.
-
Understanding the variability and predictability of seasonal climates over West and Southern Africa using climate models
… However, how to improve the capability of the dynamical models of the climate system in reproducing the regional seasonal climate variability and in replicating the role of various atmospheric circulation anomalies on the regional variability remains a major challenge. Thus far, understanding …
-
Automated modeling of nonlinear dynamical subsystems for stable system simulation
… design to system integration, calibrating models with higher-order effects, and providing protected models without revealing the intellectual properties of actual designs. Many existing techniques can generate nonlinear dynamical models that are stable when simulated alone. However, such …
-
A panchromatic study of stellar populations in Galactic Globular Clusters
… of the BSS radial distribution and the dynamical state of the hosting clusters by making use of dynamical models and simulations. When relevant, we also discuss the possible links with some cluster "anomalies" and the effects of a massive object (like Imtermediate Mass Black Hole) in the …
-
Towards a behavioral approach to linear approximate modeling
… exponential time series and a specific class of dynamical models are considered. A misfit function, between the data measurements and a system, belonging to this model class, is defined and the problem of characterizing all members of our model class, for which the value of the misfit function …
-
TIME SERIES RESEARCH IN PSYCHOLOGY: CONCEPTUAL AND METHODOLOGICAL ISSUES
… over the traditional methods in dealing with dynamical phenomena; (2) discuss various possible research applications of time series procedures in psychology; and (3) solve some methodological problems occurring in applied settings. After a brief introduction into time- and frequency-domain …
-
Coupled nonlinear dynamical systems
In this dissertation, we study coupled nonlinear dynamical systems that exhibit new types of complex behavior. We numerically and analytically examine a variety of dynamical models, ranging from systems of ordinary differential equations (ODE) with novel elements of feedback to systems of partial …
-
Jacobian-based control of soft robots for manipulation using implicit surface models
… of soft robot hands with relatively simple dynamical models. Specifically, we demonstrate a very simple model of a 2D soft manipulator that uses pulleys and cables to model deformable surfaces. This model captures much of the qualitative behavior of soft membranes, while also proving …
-
Time, Space and Agency: A Dynamical Approach to Narrative in New-Media Artwork
This thesis proposes a dynamical approach to narrative creation as found in the so-called new-media art field. It focuses on catastrophic models in order to conceptualise, analyse, and create narrative forms with multiple media and diverse formats. It deals with the transmedial nature of story and …
-
Design of Time-Varying Hybrid Zero Dynamics Controllers for Exponential Stabilization of Agile Quadrupedal Locomotion
… stable and agile gaits for full-order hybrid dynamical models of quadrupedal locomotion. Unlike time-invariant nonlinear controllers, time-varying controllers do not rely on sensor data for gait phasing and can initiate locomotion from zero velocity. Motivated by these properties, we …
-
Supervised Calibration and Uncertainty Quantification of Subgrid Closure Parameters using Ensemble Kalman Inversion
… used to identify and remove structural biases in dynamical models for real-world systems. However, because model updates alter the dependency of a model on its free parameters, evidence about structural biases is often muddied by the variable influences of inadequately-tuned parameters on the …
-
Automatic design tool for robust radio frequency decoupling matrices in magnetic resonance imaging
… Furthermore our tool computes parameterized dynamical models and performs sensitivity analysis with respect to patient head-size and head-position for MRI coils.
Page 1 of 4