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 49 for “"Interfacial phenomena"”.
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Magnetic domain walls driven by interfacial phenomena
A domain wall in a ferromagnetic material is a boundary between differently magnetized regions, and its motion provides a convenient scheme to control the magnetization state of the material. Domain walls can be confined and moved along nanostrips of magnetic thin films, which are proposed …
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A Simulation Approach to Thermodynamics in Interfacial Phenomena
… and catalysis involve molecular level phenomena governed by interfacial interactions. Precise control of these interactions will leverage the performance of materials in these applications. However, the ability to tailor the molecular characteristics is hindered by incomplete …
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Multiphase Interfacial Phenomena for Liquid Manipulation and Defrosting
Interfacial phenomena are prevalent in various natural and engineered systems. A thorough understanding of these phenomena is essential for a complete understanding of processes such as phase transitions and interaction of liquid droplets with different surfaces. The insights gained from …
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Interfacial Phenomena and Surface Forces of Hydrophobic Solids
… “hydrophobic effect” is responsible for high interfacial energies between hydrophobic solids and aqueous liquids, the low solubility of apolar solutes in aqueous solvents, and self-assembly in biological processes, such as vesicle formation and protein folding. Although it is known that a …
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Advanced battery modeling for interfacial phenomena and optimal charging
<p>"Lithium-ion batteries are one of the most promising energy storage systems for portable devices, transportation, and renewable grids. To meet the increasing requirements of these applications, higher energy density and areal capacity, long cycle life, fast charging rate and enhanced safety for …
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Controlling molecular interactions to define interfacial phenomena and structure
… and modelling suggested the presence of an interfacial structure comprising paracrystalline stacks (around five layers) of adsorbed surfactant and/or polymer layers interspersed with water layers. The thickness of these layers was found to be sensitive to the SMS architecture (hydrocarbon …
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Exploiting Interfacial Phenomena to Expel Matter from its Substrate
… substrates has always been an integral part of interfacial physics problems. A thorough understanding of such interactions between a solid surface and different soft materials not only expands our theoretical knowledge, but also has applications in self-cleaning, omniphobic surfaces and …
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Surface instabilities and interfacial phenomena for nanomanufacturing at the atomically-thin limit
… instabilities (e.g. wrinkling and buckling) and interfacial phenomena (e.g. delamination) are typically deemed as engineering nuisances and failure modes. However, these universally ubiquitous phenomena can instead be harnessed to realize novel strategies and architectures for precise …
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Interfacial Phenomena in Electrical Ceramics and the Design and Fabrication of Semiconducting Ceramics
Interfaces and interfacial phenomena exert a major influence on the behaviour of materials and hence dominate their utility in many applications. It has been recognized that the advantages offered by electrical ceramics are inherently connected with their microstructure; and the properties they …
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Molecular Dynamics of Interfacial Phenomena at Air/ice, Air/water, and Air/salt Water Interfaces
The purpose of this research is to investigate the adsorption of organic contaminants, namely polycyclic aromatic hydrocarbons (PAHs) and green leaf volatiles (GLVs), as well as their interactions with reactive oxygen species (ROSs) on atmospheric air/water and air/ice interfaces. In another series …
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Studies of Interfacial Phenomena: Alkanethiol Adsorption and Patterning on Gold and the Superconducting Proximity Effect in Superconductor /Semiconductor Systems
The second phenomenon studied is the superconducting proximity effect at Nb/InAs and NbN/InAs interfaces. Previous investigations of Nb/InGaAs show an excess conductance at low bias voltages when the system is superconducting. However, current models do not sufficiently explain this excess …
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Correlation between interface-dependent properties and electrical performances in OFETs
… devices, their behaviour is strongly driven by interfacial phenomena taking place in the nano scale. The focus of this thesis is the realization and characterization of Organic Field effect Transistors (OFETs) with a particular interest for investigating the influence of the interfaces on the …
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Microstructural Analysis of Garnet-Heavy Metal Heterostructures
… variety of magnetic interactions, both bulk and interfacial, which are valuable for spintronics. Interfacial phenomena such as spin transfer torque, spin orbit torque, and interfacial Dzyaloshinskii-Moriya interaction have all been clearly observed in REIG-heavy metal heterostructures [4,5]. …
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Colloidal structures with novel functions
… to develop a novel sensor to detect various interfacial phenomena without requiring labelling of the analyte and the use of electroanalytical apparatus.
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Surface Charge Regulation Effects on Fluidic Nanoscale Systems
… surface area to volume ratios of these systems, interfacial phenomena are of key importance to understanding their behavior. We present several studies of uidic nanoscale systems using the Poisson{Boltzmann equation which treats the uid as a continuum, and density functional theory of uids which …
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Molecular modeling of water and aqueous electrolytes under electric field: thermal, dielectric, and transport properties
… energy storage, and electrically driven interfacial phenomena. Accurately capturing its coupled thermo-electrical behavior remains a challenge in MD simulations. This study combines machine learning, and MD simulations to provide a computational study of water and electrolyte systems. To …
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Continuous flow separation techniques for microchemical synthesis
… length scales such as electric fields and interfacial phenomena, and to use straightforward microfluidic mixers for kinetic studies of energetic material synthesis. Dielectrophoresis was used to study the continuous separation of polystyrene particles based on size. Essentially, a …
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Fabrication and characterization of nano-engineered membranes for oil-water separation
… the fundamental equations and models that govern interfacial phenomena and hydrophobic/oleophilic membranes are developed. In all, this work present a method for successfully separating oil droplets smaller than a micron from water by a novel methodology.
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Natural and engineered surfaces for enhanced phase change heat transfer
… of phase change heat transfer. Interestingly, interfacial phenomena tailored for the manipulation of water can be found in nature. Many natural plant and insect surfaces have evolved to repel or attract water in order to adapt to external evolutionary pressures and to help them survive. This …
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Multiscale Modeling of Electronic Polarization Effects in Interfacial Thermodynamics and Nanoscale Transport Phenomena
… the role of electronic polarization effects on interfacial thermodynamics and nanoscale transport has been largely lacking. Moreover, due to the vectorial nature of the electric fields, the ion-solid and water-solid polarization energies, which result from the ion-induced and the water-induced …
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