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 53 for “"Wicking"”.
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Use of wicking geotextile to dehydrate road embankments
… the excess water induced problems using a new wicking geotextile. Firstly, a series of laboratory test results were performed to characterize the mechanical and hydraulic properties of the wicking geotextile, the soil, and their interactions. After that, the laboratory test results were used as …
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Dual Auteurs?: The Case Study of Gordon Hessler and Christopher Wicking
… by Gordon Hessler and written by Christopher Wicking between 1969 and 1971, in an effort to discover whether the director and writer were the dual auteurs of these works. The study adopts the philosophy and methodology of the auteur theory as described by Andrew Sarris in his essay, “Some …
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Programming of wicking behavior of hydrogel and paper-based microfluidic device
… and flow control techniques. In doing so, novel wicking material such as hydrogel is introduced for additional functionality and contribute to structural complexity. The design to accommodate both the functionality and complexity of the structure is, thus, getting more and more complicated, but …
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Development of an Ingestible Fluid Wicking Gastric Electrical Stimulation Platform for Hormone Modulation
… properties. Finally, inspired by the fluid wicking skin of the Moloch horridus, we developed and integrated fluid wicking surface structures into the capsule that can displace fluid in order to mitigate the challenge it poses to targeted stimulation. The optimized capsule was administered in …
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Wick irrigation systems for subsistence farming
… cost is essential. The possibility of using a wicking irrigation system that relies on the suction plants create for water to mitigate the pumping pressure is investigated. A theoretical model for such a system is developed for an acre sized wicking irrigation system, and the power and water …
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INFLUENCE OF STRUCTURAL AND CHEMICAL ASYMMETRY OF NANOSTRUCTURES ON THE KINETICS OF WETTING
… This form of wetting is commonly known as hemiwicking or 2D wicking, and involves a film of liquid wicking from the base of the droplet into the space between the nanostructures. The rate of imbibition of the wicking film is determined by the balance between capillary energy gained from wetting …
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Thermal Management Using Liquid-vapor Phase Change in Nanochannels
… heat transfer. Comprehending the phenomena of wicking and liquid-vapor phase-change in micro/nano structured surfaces are key aspects towards advancing heat transfer solutions. In this work, fundamental understanding of droplet wicking, thin-film evaporation, and their subsequent application of …
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Migration of <I>Penicillium spinulosum</I> from Paperboard Packaging to Extended Shelf Life Milk
… in paperboard was studied along with the wicking characteristics of ultra-pasteurized milk to understand sporadic fungal contamination of ultra-pasteurized, extended shelf life milk products. Previous research has indicated paperboard packaging as a potential source for the fungal …
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The effects of abrasion on liquid-fabric interaction of selected nonwoven fabrics
… The liquid-fabric interactions included wetting/wicking, retention, and penetration through nonwoven fabrics using water/surfactant solution. Results of this study indicated that abrasion treatments increased the wetting/wicking rate of fabrics. The flat/flex abrasion caused a greater increase in …
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Mechanistic Understanding and Enhancing Pool Boiling Heat Transfer via Surface Property and Structure Design
… on enhanced CHF during pool boiling of hemi-wicking surfaces. We systematically designed micropillar surfaces with controlled roughness and wickability, and combined the results with scaling analysis to obtain a unified descriptor for CHF. This unified descriptor represents the combined …
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Capillary-Driven Condensation for Heat Transfer Enhancement in Steam Power Plants
… hydrophobic porous membrane attached on top of a wicking structure that is firmly bonded to the condenser surface. The wicking structure and the membrane can be separately tailored to maximize the fluid flow in the wick and its effective thermal conductivity, as well as the maximum capillary …
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Transpiration Electrokinetic Power Generation and Zinc Ion Battery for Autonomous Leak Detection
… zinc anode to harness energy from moisture wicking and electrochemical processes, achieving a maximum theoretical power output of 1.4 mW. A single device could then be used to activate a latching circuit allowing a battery to operate an internet of things (IOT) device for WI FI signaled leak …
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Experimental Investigation of Critical Heat Flux Enhancement on Engineered Surfaces with Infrared Thermometry
… of them. Then, liquid is resupplied by capillary wicking effects. The experimental results show that wicking is only effective within a certain distance (<1 mm) from the apparent triple contact line. This wicking distance, is found to depend on the local heat flux which is limited by thermal …
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Influence of surface tension and concentration of a non-ionic surfactant on the barrier effectiveness of a microporous polypropylene fabric for pesticide protective clothing
… was evaluated from the capillary penetration, wicking, and wetting characteristics of the fabric using the surfactant solutions at various concentrations. Wetting characteristics were evaluated from the drop absorbency test, a modified Draves test, the spreading coefficient (S<sub>c</sub>) …
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Micro and nanostructures for two-phase fluid and thermal transport
… channel can maintain a liquid film by capillary wicking to promote thin film evaporation and prevent dry-out. Our experimental results show significantly reduced long-timescale (-seconds) temperature and pressure drop fluctuation at high heat fluxes. A critical heat flux (CHF) of 969 W/cm2 was …
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Liquid transport mechanisms in cotton-polypropylene laminated nonwoven fabrics influencing pesticide penetration
… as well as other measures of fabric wetting, wicking, and liquid retention. A water/surfactant solution of surface tension close to that of the pesticide solution was used in some tests to determine whether it could be used to simulate liquid transport characteristics of the pesticide …
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Breakdown Anodization (BDA) for hierarchical structures of titanium oxide
… surfaces. In this study we investigate the wicking properties of BDA surfaces and quantify their performance in terms of capillary pressure and capillary spreading speed constant. Further, we investigate the application of BDA surfaces to electrospray for the separation and identification of …
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WET PROCESSING OF FIBRE BLENDS CONTAINING PRE HARVEST RETTED FLAX
… suggested to alleviate this problem. Thin-layer wicking tests with polar and non-polar liquids were used to investigate the effects of scouring and bleaching on fibre/yarn surface free energies. The results were influenced by variation in yarn presentation for the wicking experiments and further …
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