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 15 of 15 for “"Saturation Effect"”.
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Modulation of Murine Intestinal Gene Expression by Dietary Fat: Spatial Variation and Saturation Effect
… Traditional approaches investigate the linear effect of high-fat over-consumption on transcriptomic data. However, many biological processes occur in a nonlinear fashion. The objective of this PhD thesis is to study the response types of dietary fat mediated differentially expressed genes …
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Nonlinear Luminescence Quenching in Eu2O3
… the spectra and dynamics of Eu2O3, an apparent saturation dip in the excitation spectra of nano-sized Eu2O3 particles was observed. This thesis describes the investigation into the nature of the saturation effect. The samples studied using luminescent spectroscopy included micron sized Eu2O3 …
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Experimental and numerical analysis of fuel cells
… Physical phenomena (water generation, saturation effect in fuel cell, poisoning, and thermal stress) are studied that governs the operation of a Proton Exchange Membrane Fuel Cell (PEMFC) and Solid Oxide Fuel cell (SOFC). Additionally, experimental studies and numerical simulations on …
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Gas-condensate flow modelling for shale gas reservoirs.
… pressure in the matrix causing higher condensate saturation than in bulk conditions. A good understanding and an accurate evaluation of how the condensate builds up in the reservoir and how it affects the gas flow is very important to manage successfully the development of these high-cost …
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Bubble characteristics from breaking waves in fresh water and simulated seawater
… like wind conditions lead to the discovery of a saturation effect on the appearance of bubbles.
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THEORETICAL AND EXPERIMENTAL INVESTIGATIONS OF THE CROSSMAGNETIZING PHENOMENON IN SATURATED SYNCHRONOUS MACHINES
In recent studies of the saturation effect in synchronous machines, there has been an increasing recognization of the important role of the magnetic coupling between the direct- and quadrature-axis (the cross-magnetizing phenomenon) in the analysis of saturated synchronous machines. In this …
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Credit Risk Modeling and Analysis Using Copula Method and Changepoint Approach to Survival Data
… model. Simulations are conducted to examine the effectiveness of the model. As an application, the model is also used to examine whether and where the ratings of securitized products could be flawed. On the other hand, the lag effect and saturation effect problems are common and important …
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Quantum dot gain-lever laser diode
… the overall modulation bandwidth. The gain lever effect is a method used to enhance the efficiency of amplitude modulation and optical frequency modulation at microwave frequencies by taking advantage of the sub-linear nature of the gain versus carrier density. Previously, two-section quantum well …
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Fundamental aerosol-cloud interactions and their influence on the aerosol indirect effect on climate
… interactions, known as the aerosol indirect effect on climate, constitutes a fundamental uncertainty in our understanding of 2 0 th century climate change. In this dissertation, we investigate the role of a keystone physical process, droplet activation, in contributing to this uncertainty. …
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Analysis and Experimental Investigation of Wave Propagation and Energy Transfer in Mechanical Rotator Metamaterials
… in-plane rotator unit cell, demonstrating an effective approach for achieving passive targeted energy transfer. Building upon the rotational geometry's rich dynamics, two types of rotator lattices are designed, showcasing significantly different dispersion characteristics resulting from subtle …
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Orographic Gravity Wave Drag and the Large Scale Atmospheric Circulation
… drag force that they exert on the mean flow. The effects of Orographic Gravity Wave Drag (OGWD) are what is explored in this thesis. By experimenting on the OGWD forcing in an idealized General Circulation Model. Firstly, the impact of OGWD in the model is quantified for the wintertime …
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DEVELOPMENT OF FATIGUE MODELS FOR COPPER TRACES ON PRINTED WIRING ASSEMBLIES UNDER QUASI-STATIC CYCLIC MECHANICAL BENDING
… proposed, based on a "tanh" term, which forced a saturation of the mean stress effect at higher stress levels for tensile means stresses. This saturation effect was also considered for compressive loading, termed the BCS model ("B" for "bounded" effect of the mean stresses), and compared with the …
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Self-Consistency of the Lauritzen-Hoffman and Strobl Models of Polymer Crystallization Evaluated for Poly(ε-caprolactone) Fractions and Effect of Composition on the Phenomenon of Concurrent Crystallization in Polyethylene Blends
… evidence was uncovered for the existence of a saturation effect in the concurrent crystallization behavior. This observation leads us to suggest that co-crystallization, rather than mere concurrent crystallization, of LDPE with m-LLDPE can indeed take place. Matching of the respective sequence …
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Laser-enhanced plasma etching of semiconductor materials
… source placed upstream, laser etch enhancement effect is 4 Å/s in 50:4 sccm Ar/SF6 and 3 Å/s etch enhancement at 50:8:2 sccm Ar/C4F8/O2. With no O2 flow in a 50:8 sccm Ar/C4F8 chemistry in an RF capacitively-coupled plasma (RF-CCP) source with a measured self-bias of -140 V, etch activation …
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Laboratory Strength Testing of Argillaceous Limestone Under Varying Saturation, Scale, Loading Rate, and Confinement Conditions
… the need for a better understanding of the effect of rock conditions on the damage behaviour of brittle rocks. This research examines the influences of various testing conditions on the geomechanical properties of Cobourg limestone, to address the changing in situ conditions that may be …