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 25 for “"Surface liquid"”.
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Exploring the Surface Liquid and Lake Regions of Titan with Laboratory Experimentation and Cassini Spacecraft Data
<p>The surface liquids and lake regions of Titan are studied utilizing three unique techniques, the results of which are reported in this dissertation. The development of a facility to simulate the surface conditions of Titan, and to conduct experiments on samples within that facility, brings an …
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DEVELOPMENT AND TESTING OF A FLEXIBLE PLASTIC HYDROGEN ION-SELECTIVE ELECTRODE FOR IN VIVO pH MEASUREMENTS OF AIRWAY SURFACE LIQUID
… mucus thickening and acidification of the airway surface liquid (ASL). These alterations impair host-defence, making CF patients more prone to recurrent microbial infections in the respiratory tract. This project aimed to develop a pH meter capable of measuring ASL pH in vivo through bronchoscopy, …
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A multi-parameter approach to exoplanet habitability
… radiation is suitable for the presence of surface liquid water and enough surface gravity to sustain an atmosphere. With the ever-increasing number of detected exoplanets, we might end up with hundreds of planets that suit these criteria and are accordingly all equally likely to host life. …
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A multi-parameter approach to exoplanet habitability
… radiation is suitable for the presence of surface liquid water and enough surface gravity to sustain an atmosphere. With the ever-increasing number of detected exoplanets, we might end up with hundreds of planets that suit these criteria and are accordingly all equally likely to host life. …
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A zonally and annually averaged study of potential early Martian atmospheres
Observations of the surface of Mars suggest a high probability of surface water activity in that planet's past. Consequently, many studies of Mars' early atmosphere have attempted to estimate the carbon dioxide level by requiring that surface temperatures be high enough to support surface liquid …
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Novel endoscopes for microscopic assessment of airway clearance using micro-optical coherence tomography
… of ciliary beating, measurement of airway surface liquid depth (ASL) and visualization of mucociliary transport. Unaltered ciliary function was demonstrated in a living, spontaneously breathing swine model. Newer generation common-path endoscope designs were demonstrated that improve, among …
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Solid-liquid-liquid Wettability and its role on Targeted Emulsified Solvent Injection (TESI)
… on bitumen recovery. To this end, existing Surface-Liquid-Air (SLA) wettability models were evaluated for their suitability to predict Solid-Liquid-Liquid (SLL) contact angles for a wide range of interfacial tensions (IFTs) of surfactant-free systems on various materials. The Neumann’s …
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Preparation and Characterization of Hydrophobic Graphene-Based Thin Films
… material, can impart hydrophobicity to a surface. Liquid-phase surface treatments are familiar to many industrial engineering practices and it is well-known that graphene oxide, a graphene derivative which can be modified to achieve graphene-like material qualities, disperses well in many …
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Nebulized Hypertonic Saline-Triggered Increase in Mucociliary Clearance Rate is Mediated by the Nervous System
… in part, to increase the volume of airway surface liquid (ASL) by generating an osmotic gradient that draws water into the airway lumen and, thus, increasing mucociliary clearance (MCC). However, recent research has also demonstrated that HTS-triggered increase in ASL height is mediated by …
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Evidence of Student Learning of Spectrophotometry and Intermolecular Forces in the Chemistry Laboratory
… reasoning grounded in molecular structure and surface chemistry. This laboratory development was followed by an analyzes of students’ written explanations of their observations using a causal mechanistic reasoning (CMR) framework. Findings indicate that while students often articulated …
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Effects of Moisture on Combustion Characteristics of Live California Chaparral and Utah Foliage
… from both California and Utah had noticeable surface changes during the ignition process. All fresh samples showed a color change on the leaf surface from a light dusty color to a dark wet color. This is likely due to the melting of the waxy protective layer. Samples of scrub oak, manzanita, …
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Ordering of Curving Interfaces
Curved surfaces are fundamental parts of living systems. This thesis examines how materials can order on curving interfaces, resulting in shape changes and pattern formation. Many phenomena that are well-studied in flat space display new behavior when lifted onto a deformable surface: liquid …
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Midkine - a host defence protein
… of the antibacterial activity found in the air surface liquid covering the bronchial epithelium of the lungs. In patients with cystic fibrosis, a genetic disorder primarily affecting the ion-transport of the airway epithelium, the expression of MK is increased. These patients suffer from viscous …
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Nuclear magnetic resonance and dynamic polarization studies of liquid/liquid and liquid/solid interfaces
In the present study, interactions at the liquid/liquid and liquid/solid interfaces have been investigated by the combination of both nuclear magnetic resonance (NMR) and dynamic nuclear polarization (DNP) techniques. The ¹³C and ¹⁵N paramagnetic contact shifts, and ¹H, ¹³C, and ¹⁵N relaxation …
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Modeling the Mechanical Effects of Liquid Mediated Adhesion Between the Human Vocal Folds
… of the vocal folds results in the formation of a liquid bridge. The adhesion equation was validated using experimental data, and simplified to a one-dimensional approximation with an included correction factor that adjusted the predicted pressure in situations where the one-dimensional …
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LIPID-BASED APPROACHES TO OPTIMIZE THE EFFECTIVENESS OF INNOVATIVE DRUG MODULATORS IN CYSTIC FIBROSIS
… with impaired mucociliary clearance and airway surface liquid dehydration, leading to recurrent infections and high morbidity. The most common mutation, the deletion of phenylalanine at position 508 (F508del), induces misfolding and retention of CFTR in the endoplasmic reticulum, causing …
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Amphotericin B ion channels restore cystic fibrosis airway surface physiology
… bicarbonate transport and decreased airway surface liquid (ASL) pH, which impairs respiratory host defenses and leads to chronic lung infections. Because basolateral pumps and channels remain active in the absence of functional CFTR, we hypothesized that an outward-facing bicarbonate …
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Nerve growth factor regulates Na+ transport in human airway epithelial cells
… would result in the hydration of the airway surface liquid.
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Understanding and predicting acute pulmonary exacerbations in adults with cystic fibrosis
… mucus, depletion and acidification of the airway surface liquid and impairment of the normal muco-ciliary clearance mechanisms, providing a permissive environment for chronic infection and progressive airway damage. Pseudomonas aeruginosa is a versatile, Gram-negative opportunistic human pathogen …
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