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 14 of 14 for “"Interfacial Transport"”.
-
Evaporation from nanopores : probing interfacial transport
… difficult to experimentally characterize the interfacial heat and mass transfer during evaporation. In this thesis, we designed and microfabricated an ultrathin nanoporous membrane as an experimental platform to overcome some critical challenges including: (1) realizing accurate and yet …
-
Microfluidic device and interfacial transport: application to biomolecules and nanostructures
… or biomolecules) is crucial. The control of interfacial phenomena occurring in solutions at dierent length scales is compelling in nanotechnology for devising new sensors, molecular electronics devices, memories. Microfluidic devices were fabricated and integrated with organic electronics …
-
Effects of Aqueous Organic Coatings on the Interfacial Transport of Atmospheric Species
… interact with air—aqueous interfaces in order to transport between either phase, however organic coated water surfaces are ubiquitous in the environment, and the physical and chemical processes that occur at organic coated aqueous surfaces are often different than those at pure air—water …
-
Interfacial Transport Phenomena of the Non-Wetting Phase in Porous Media: Applied to Polymer Electrolyte Fuel Cell Gas Diffusion Media
… methods for mathematical modeling of water transport in porous media lead to a sudden, sharp discontinuity in liquid saturation at the interface between two porous media of different properties. The goal of this study was to determine if this discontinuity is a physical phenomenon that truly …
-
Design and modeling of a high flux cooling device based on thin film evaporation from thin nanoporous membranes
… loss due to the thinness of the membrane. The interfacial transport has been re-investigated where we use the moment method to solve the Boltzmann Transport Equation. The pore-level transport has been modeled coupling liquid transport, vapor transport and the interfacial balance. The …
-
Bridging conduction and radiation : investigating thermal transport in nanoscale gaps
… aerogels, and composite materials with interfacial transport involve heat transfer between surfaces with separations in the nanometer length scales. At separations of only a few nanometers, the distinction between classical thermal conduction and thermal radiation become blurred. Contact …
-
Molecular Structure, Diffusion Dynamics and Hydration Energetics of Non-Confined Water and Water at Mineral Surfaces
… structural ordering, hydrogen bond organization, interfacial transport and hydration energetics of H2O molecules. Interaction between water and solid surfaces and changes in the structural and dynamical behavior resulting from local electric fields, geometric confinement, different bonding …
-
Diversity oriented, computer guided catalyst design: Application of chemoinformatics to catalysis
… under PTC conditions (operating under an interfacial, transport-rate limiting mechanism) and was compared with these molecular descriptors. Models could be generated from the ammonium ion accessibility parameter q and the amphiphilic cross-sectional area descriptor (XSA), and each gave a …
-
Phonon and electron transport through interfaces and disordered structures
Understanding phonon and electron transport is of great significance for designing efficient solid-state devices such as transistors, laser diodes and thermoelectric energy converters. The structural randomness is inevitable in solid-state devices, and it is often regarded as the undesirable …
-
Active and Passive Transport at Interfaces
In this thesis we studied different forms of transport at interfaces. Four different interfacial transport mechanisms have been investigated. In each of them one physical aspect of active and passive transport is discussed. The four systems are arranged and discussed in four separate chapters. In …
-
Surface characterization of self-assembled monolayers for applications of selective ionic transport through nanoporous membranes
… interactions under an applied electric field. Transport processes include those of colloids and other charged particles in electrolytes, whose motion under applied external electric fields is described in part by fluid mechanics. In particular, there is growing interest for the application of …
-
Free-surface turbulence and air-water gas exchange
… These results (1) further our understanding of interfacial transport processes, (2) demonstrate the important role of surface divergence in air-water gas exchange, and (3) relate, in a physically meaningful way, the interactions between surface renewal, surfactants, and gas transfer.
-
Polarization-induced transport in ferroelelctric organic field-effect transistors
… (FETs) to understand the mechanism of charge transport in organic semiconductors. The ferroelectric nature of the polymer, poly(vinylidene fluoride) (PVDF)), has been known for over 45 years. However, its role in interfacial transport in organic/polymeric FETs is not that well understood. PVDF …
-
Energy analysis and fabrication of photovoltaic thermal water electrolyzer and ion transport through modified nanoporous membranes
… the second part of the dissertation, a focus of interfacial transport phenomena is proposed in order to achieve improved- charge selective nanofluidic systems. There have been numerous studies on the quality of organic SAMs as a blocking mechanism for prevention of ion adsorption. First, we …