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 34 for “"Multiscale models"”.
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Multiscale models for polymer upcycling
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-15 without embargo terms
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Multiscale models for structure and dynamics of confined fluids
… using systematic coarse-graining, we develop multiscale models to study structural and dynamical properties of confined fluids. With the advent of nanofluidics and nanobiotechnology, fluids confined inside nanometer scale geometries have become a subject of both fundamental investigation and …
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Stochastic realization theory for exact and approximate multiscale models
… of the independence structure possessed by multiscale models and demonstrates that such an analysis provides important insight into the multiscale stochastic realization problem. Multiscale models constitute a broad class of probabilistic models which includes the well--known subclass of …
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Multiscale models of the metalorganic vapor phase epitaxy process
… growing film. In this thesis, new computational models are developed that work on specific length scales, models are linked together, and combined models are used to study the physics of actual deposition processes. A Kinetic Monte Carlo (KMC) model is developed in order to simulate surface …
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The Development and Application of Coupled Multiscale Models of Malaria Disease System
… of this study is to develop coupled multi-scale models of direct vectorborne diseases using malaria as a paradigm. We have developed a basic coupled multi-scale model with a combination of two other categories of multi-scale models, which are a nested multi-scale model in the human host and an …
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Developing new multiscale models for the numerical simulation of Pultruded GFRP Structural Elements
… FRP elements necessitates complex computational models to predict their strength and investigate design parameters through numerical simulations. This research initially reviews the state-of-the-art in numerical modelling of structural fibre-reinforced polymeric elements, particularly pultruded …
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Multiscale models for the degradation, damage, and failure of collagen-based soft tissues
Multiscale computational models for the deformation, degradation, and failure of soft tissues can inform the work of tissue engineers, clinicians who treat soft tissue injuries, and biologists who study the growth and development of soft tissues. Increasingly, mechanical models for tissues that …
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Development of multiscale models for the performance of the gas and oil seals in rotary engines
… this problem, this thesis presents a set of multiscale models to assess rotary engine performances by estimating gas leakage, oil consumption, wear and friction. An oil seal multiscale model is developed to estimate internal oil consumption guided by oil transport visualization experiments …
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Within Host and Multiscale Models of Usutu and SARS-CoV-2 Viral Infections with Animal Hosts
… goal of this dissertation is to use mathematical models in connection with data to uncover mechanistic interactions governing viral infections. To acquire a holistic understanding of the impact of viral infections, it is necessary to develop mathematical techniques and models that bridge knowledge …
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Multiscale models based on statistical mechanics and physically-based machine learning for the thermo-hygro-mechanical behavior of spider-silk-like hierarchical materials
… structure. Nevertheless, many of the multiscale mechanisms that give rise to the striking macroscopic properties are still unclear. Many open problems are also related to the relevant effects of environmental conditions and in particular on temperature and humidity, strongly …
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Multiscale Modelling of Environmentally Transmitted Infectious Diseases
… to witness an overwhelming appreciation of multiscale modelling as an essential and suitable technique as opposed to a traditional single-scale modelling approach in predicting the dynamics of infectious disease systems. Yet, there is still a lack of evidence that generally indicates which …
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Exploring the Multi-scale character of infectious disease dynamics
This research study characterised multiscale models of infectious disease dynamics. This was achieved by establishing when it is appropriate to implement particular mathematical methods for different multiscale models. The study of infectious disease systems has been elucidated ever since the …
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Multiscale Modelling of Foodborne Diseases
Infectious disease systems are essentially multiscale complex system wherein pathogens multiply within hosts, spread across people, and infect entire populations of hosts. The description of most biological processes involves multiple, interconnected phenomena occurring on different spatial and …
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Multiscale modeling and estimation of large-scale dynamic systems
… In this thesis, we consider an alternative multiscale modeling framework first developed by Basseville, Willsky, et al. [6, 18]. This multiscale estimation methodology has been successfully applied to a number of large-scale static estimation problems, one of which is the application of the …
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Multiscale modelling of continuum and discrete dynamics in materials with complicated microstructure
Homogenization and other multiscale modelling techniques empower scientist and engineers to build efficient macroscale mathematical models for simulating materials with complicated microstructure. But the modelling methodology rarely systematically derives the boundary conditions for macroscale …
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A multiscale approach to state estimation with applications in process operability analysis and model predictive control
This thesis explores the application of multiscale ideas to the areas of state estimation and control. The work represents a significant departure from the traditional representations in the time and frequency domains, and provides a novel framework that leads to fast, efficient, and modular …
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Multiscale Modelling of Hepatic Viral Infection
The multiscale modelling of hepatic viral infection was introduced in this work and various approaches were carried out to contribute effectively to the control and eradication of viral hepatitis in sub-saharan Africa. A nested multiscale model was developed by applying the Replication-Transmission …
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Solar Wind-Magnetosphere-Ionosphere Coupling: Multiscale Study with Computational Models
… investigated with three different computational models that characterize space plasma dynamics on distinct spatial/temporal scales. These models are used to explore three important aspects of SW-M-I coupling. A particle-in-cell (PIC) model has been developed to explore the kinetic scale dynamics …
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Multiscale Modeling of an Industrial Nylon-6 Leacher
This thesis presents a multiscale model of an industrial nylon-6 leacher. We develop several models at various spatial scales and implement them together in a simplistic, efficient way to develop an overall leacher model. We solve dynamic transport differential equations using the finite-volume …
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Bayesian Analysis of Temporal and Spatio-temporal Multivariate Environmental Data
… There is great need to computationally feasible models that account for temporal, spatial, and inter-variables dependence. Our research focuses on those areas in two ways. First, we investigate connections between changes in tornado risk and the increase in atmospheric instability over Oklahoma. …
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