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 20 of 21 for “"surface property"”.
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Mechanistic Understanding and Enhancing Pool Boiling Heat Transfer via Surface Property and Structure Design
… discrepancy of experimental CHF values on flat surfaces reported in the literature by accounting for hydrocarbon adsorption and oxidation of metallic surfaces during boiling. Accordingly, we developed an experimental protocol based on this understanding on the causes of spread in CHF values and …
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Interactions and Dynamics of Soft Materials
… to investigate thee molecular weight dependence, surface coverage dependence, surface property dependence of polymer interfacial diffusion. We also developed a set of novel instrumentations to study the translational dynamics of polymer melt within highly confined geometry.
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Electronic transport of graphene devices
… transport of graphene devices. First of all, the surface property of graphene has been studied in order to make better contacts between graphene and metal. Electrical properties of graphene are investigated. Reproducible current hysteresis is observed when high voltage bias is swept in the …
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Methane Storage and Adsorption Characteristics in Nanoporous Gas Shale
… related to the multi-scale pore sizes and pore surface property. Besides, methane adsorptions on shale rocks were experimentally measured, and the proposed multi-site model was used to describe the measured adsorption isotherms. Compared to the traditional single-site Langmuir model, the …
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The abrasive wear behaviour of mineral-filled polypropylene
… wear conditions with specific emphasis on the surface property of scratch resistance. The experimental work has covered the effect of polymer crystallinity, mineral fillers, and the nature of the abrasive counterface on the wear behaviour of polypropylene. The wear behaviours of …
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The influence of surface properties on carbon fiber/epoxy matrix interfacial adhesion
… The focus of this work was to study carbon fiber surface chemical and physical properties and their effects on fiber/matrix adhesion. Untreated, commercially surface treated and oxygen plasma treated PAN based carbon fibers were used for study. XPS was used to determine fiber surface chemistry. A …
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Elasticity in Microstructure Sensitive Design Through the use of Hill Bounds
… representation renders properties as hyper-surfaces that translate through a multi-dimensional Fourier space depending on the property value of the hyper-surface. Property closures are generated by condensing the information contained within the multi-dimensional Fourier space into a 2-D …
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Investigation on Light-driven Photocatalyst-based Materials for Wastewater Cleaning and Environmental Remediation
… dimension, unique nanostructure and specific surface property. Importantly, Ag3PO4 photocatalysts are found with unexpected photocatalytic activity (completion degradation of RhB-MO mixed dyes in 28 h) under natural indoor weak light, of which the light intensity (72 cd) is one in a thousand …
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Mass Spectrometry Imaging: Looking Fruits at Molecular Level
… of analytes from various biological sample surfaces. MSI is able to generate distribution maps of multiple analytes simultaneously without any labeling and does not require a prior knowledge of the target analytes, thus it has become an attractive molecular histology tool. MSI has been …
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INVESTIGATION OF PROCESSING-STRUCTURE-PROPERTY RELATIONS IN VAPOR PHASE MODIFIED CELLULOSIC MATERIALS
… methods to functionalize cellulose is either surface modification or regeneration. Vapor phase modification of cellulose has gained interest in recent years. Instead of using liquid phase precursor solutions, vapor phase processing uses gas molecules as precursors to realize surface coatings …
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Experimental study on subcooled flow boiling on heating surfaces with different thermal conductivities
… boiling on copper and stainless steel heating surfaces was experimentally investigated from both macroscopic and microscopic points of view. Flow boiling heat flux and heat transfer coefficient were experimentally measured on both surfaces under different conditions, such as pressure, flow rate …
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Detection and analysis of binding sites and protein-ligand interactions
… of binding hot spots, or regions on the protein surface that contribute disproportionately to the ligand binding free energy. This body of work primarily focuses on the utilization and advancement of FTMap for the study of protein-ligand interactions and their applications to drug discovery. …
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Water on Calcite (10.4) and K-Feldspar (001) - Adsorption Structure and Desorption Kinetics -
… of two particularly interesting mineral surfaces, calcite (10.4) and K-feldspar (001), are investigated. Calcite is the most abundant carbonate mineral in the Earth’s crust. Despite its abundance, a central surface property, the presence of a surface reconstruction, remained elusive so …
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Numerical Modeling of Deformation, Oscillation, Spreading and Collision Characteristics of Droplets in an Electric Field
… oscillation placed on different hydrophobic surfaces under the effect of applied AC voltage including the effect of ambient gas was investigated. The presented algorithm could reproduce droplet oscillations on a surface considering different contact angles. It has been found that the …
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Behaviour of Bubble Columns with Two and Three Phases
… systems. The effect of solids was linked to the surface property of wettability. This led to a two-way classification of behaviour: while the wettable solids tended to suppress bubble coalescence, non-wettable solids enhanced coalescence. Consequently, the former resulted in high values of gas …
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Evaluating UAV Visual-Inertial Odometry Trajectory Error and Feature-Level Metrics over Repetitive Floor Patterns
… to performance degradation when operating over surfaces containing repetitive visual textures, where visually similar features can produce ambiguous correspondences that introduce errors into the trajectory estimate. Despite the prevalence of repetitive textures in indoor UAV operating …
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Nanocarriers for nose-to-brain delivery: a novel strategy for the treatment of CNS disorders
… region of the brain can be reached; how does surface property affect NPs transport. Once NPs translocation to the brain via this route was determined, our nanosystems have been formulated to study their potential application in epilepsy and brain cancer. We investigate PLGA NPs, unmodified and …
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Wettability of graphitic materials and their application in separation
… tribology, and adsorption. This important surface property is affected by change in topography, chemical heterogeneity, and surface charge. Graphene, which is a single atom thick sheet of graphitic carbon and building block of graphite, is an ideal model material to study this interaction. …
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Designing Two-Dimensional Nanomaterials for Electrocatalytic Clean Energy Conversion
… dioxide. Electrocatalytic reactions occur on the surface of electrode materials. Consequently, understanding and tuning the surface properties of electrode materials is a key aspect in the design and preparation of efficient electrocatalysts. Compared to other nanomaterials, such as nanowires or …
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