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 707 for “"multi-scale"”.
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How the Heart Grows: From Multi-scale Data to a Multi-scale Model
… phase of the entire looping process) using a multi-scale and multi-disciplinary approach. First, an experimental pipeline was developed to obtain data at different biological scales from cell to organism in a single embryo. Utilising the pipeline on embryos at different time-points resulted in …
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Multi-scale Deep Nearest Neighbors
… due to its discontinuous nature. We propose Multi-scale Deep Nearest Neighbour (MsDNN) which is a differentiable loss function that aims to maximize the expected sample margin for every training sample. The output of MsDNN is an embedding space. We evaluate the resulting space from two …
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Multi-Scale Modelling of Gastric Electrophysiology
We have developed a multi-scale computational modelling framework for the study of gastric electrophysiology in health and disease. First, we have developed and validated two novel biophysically based models of Interstitial cell of Cajal and smooth muscle cell electrophysiology. Second, we have …
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Multi-scale analysis of cardiac myoarchitecture
… and cardiomyopathies. To investigate the multi-scale nature of architectural disarray in the setting of myocardial disease, a dual imaging approach consisting of diffusion spectrum magnetic resonance imaging (DSI) and high-speed multislice two-photon microscopy (TPM) was used. DSI is a …
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The Multi-Scale Dynamics of Executive Function
… physical interactions across many different timescales within the system. College and preschool aged participants were asked to complete a simple executive function task, card sorting. We found that multi-scale physical interactions differed depending on experimental constraints, and that …
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Multi-Scale Modelling of Cold Regions Hydrology
… modelling approaches that allow testing multiple working hypotheses. This thesis considers two themes. In the first, the development of improved modelling techniques to efficiently include spatial heterogeneity, investigate warranted model complexity, and appropriate process …
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MULTI-SCALE MODELING OF HIGH-SHEAR GRANULATION
… of liquid binder. This thesis focuses on the multi-scale nature of high-shear granulation in order to understand behavior changes due to coupled consolidation and coalescence as well as operational changes that occur during the scale up of horizontal ploughshare mixer granulators. The …
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Multi-scale modelling of atomic layer deposition
… conformal layers of material with nanometer-scale thickness, used commercially in non-planar electronics and increasingly in other areas of science and technology. ALD is a type of chemical vapor deposition that depends on self-limiting surface chemistry. In ALD, gaseous precursors are …
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Chemical Looping Combustion: A Multi-Scale Analysis
… within an electricity system represents a multi-scale problem, ranging from the behaviour of single particles of oxygen carrier within a reactor to how a CLC-based power plant would perform in an electricity grid. To date, these scales have been studied in isolation, with little regard for …
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Multi-scale multiphase modelling of granular flows
Geophysical hazards usually involve multiphase flow of dense granular solids and water. Understanding the mechanics of granular flow is of particular importance in predicting the run-out behaviour of debris flows. The dynamics of a homogeneous granular flow involve three distinct scales: the …
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Multi-scale scratching in chemical-mechanical polishing
In the fabrication of ultra-large-scale integrated (ULSI) semiconductor devices, the chemical-mechanical polishing (CMP) process is extensively employed. During the CMP process, undesirable scratches are produced on Cu interconnects both by the abrasive particles in the slurry and by the softer pad …
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Multi-scale models of T cell activation
… theme of this thesis is to develop and apply multi-scale computational techniques adopted from physical sciences to study a key phenomenon underlying the adaptive immune response: the activation of T cells. The specific objectives are: 1) develop efficient and versatile computational …
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Multi-scale modeling of nanosecond plasma assisted combustion
… measurements. In this work, we establish a multi-scale modeling framework to simulate the physical and chemical effects of nonequilibrium, nanosecond plasma discharges on reacting flows. The model is capable of resolving electric field transients and electron impact dynamics in sub-ns …
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MULTI-SCALE DYNAMICS OF MECHANICAL SYSTEMS WITH FRICTION
… containing rough surface contact requires multiscale modeling and analysis approach. It is the goal of this research to develop simple methods for treating contact of rough surfaces so as to facilitate multiscale analysis of systems containing rough surface contact and friction. This …
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Distributed multi-scale data processing for sensor networks
… data with other nodes by forming a wireless, multi-hop network. Since communication power consumption in nodes typically dominates over sensing and processing power consumption by orders of magnitude, it is often more efficient to pose questions on measured data in a distributed fashion within …
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Multi-scale representations of virtual 3D city models
… After introducing definitions for model, scale, and multi-scale representations, we discuss the fundamentals of map generalization as well as techniques for 3D generalization. The first presented technique is a cell-based generalization of virtual 3D city models. It creates abstract …
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Multi-Scale Nanoindentation For Characterization Of Oil Shales
Studies of the effects of polishing techniques, scale of nanoindentation, and petrophysical properties were conducted on both Woodford and Tuscaloosa Marine Shale. Polishing procedures include both an in-house developed, mechanical sample preparation protocol as well as ion beam milling. The …
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MULTI-SCALE SCHEDULING TECHNIQUES FOR SIGNAL PROCESSING SYSTEMS
… Networks (WSNs) to parallel systems such as Multicore Programmable Digital Signal Processors (PDSPs), Multicore General Purpose Processors (GPPs), and Graphics Processing Units (GPUs) to heterogeneous combinations of parallel and distributed devices. When a signal processing application is …
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Multi-scale Real Gas Transport in Shale Matrix
… In this work, real gas transport in the multi-scale porous structure of shale matrix is studied. Three models are, respectively, built at scales of single pores, a dual-porosity shale rock and a shale gas reservoir. These models are well validated with experimental, simulation and field …
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Robust and flexible multi-scale medial axis computation
The principle of the multi-scale medial axis (MMA) is important in that any object is detected at a blurring scale proportional to the size of the object. Thus it provides a sound balance between noise removal and preserving detail. The robustness of the MMA has been reflected in many existing …
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