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 16 of 16 for “"Phase interactions"”.
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Aqueous and solid phase interactions of radionuclides with organic complexing agents
… sites; however, the mechanisms of the interactions in complex environments are poorly understood. In this work, radionuclide speciation and sorption behaviour were investigated in order to identify interactions between four key radionuclides with different oxidation states (Cs(I) and …
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Flow characteristics and phase interactions of evaporating sprays in gas-solid suspensions
… gas/solids velocity acceleration. The complex interactions mechanism of phase change, three phase interaction, heat and mass transfer of gas, solids and evaporating droplets dominate the process efficiency and product quality. In such three-phase flows, the phase transport characteristics are …
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Dynamic behavior of unsteady turbulent motion in pipe flows of dense gas-solid suspensions
… the damping of fluid motion by particles and the phase interactions between the dense phase and dilute phase have to be studied by relating both averaged and statistical properties of the phases. A complete set of instrumentation and methods were initiated and updated to quantify the nature of …
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Evaporating crossflow sprays in gas-solid flows
… and chemical industry. The phenomenon involves phase change, three-phase interactions, heat and mass transfer. All of these characteristics control the process efficiency, pollutant production and product quality. However, very limited studies are available on the evaporating spray jets in …
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Advancement of closure relations for annular flow modeling in CFD
… improved reactors performance and safety. Multiphase- CFD (M-CFD) brings the ability to model the complex three-dimensional flow structures in annular flow regime [1], while physics-based constitutive equations are needed to accurately represent the phase interactions, particularly at the liquid …
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Concurrent evaporating spray jets in dilute gas-solid pipe flows
… and initial droplet size distribution. These interactions of gas, solids and evaporating droplets dominate the process efficiency and product quality. There is an urgent need for exploring fundamental mechanisms of the multi-phase interactions with heat and mass transfer as there are few …
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Elucidation of Charge Density Wave Stability and Defect Interactions in the Highly-Ordered Structural Transition Metal Dichalcogenide System 1T-TaS2
The 1T phase of tantalum disulfide (1T-TaS2) has a rich and complex charge density wave (CDW) phase character that has been broadly studied. CDWs are a highly correlated state between electron density and lattice distortion, originally predicted to only exist in one dimension. The discovery of CDWs …
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EXAMINING THE USE OF USER-CENTERED DESIGN IN GAMIFICATION: A DELPHI STUDY
… gamification products?" Through the multi- phase interactions between researcher and participants of this Delphi study, specific survey questions were developed such as, how does the UCD method work in gamification design, how well does it work, and suggestions on how it should be used. …
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Studies of diamond film growth using atom beam sources
… the hydrogen intensity, and incorporating an "in-phase" radiator.<br/><br/>To investigate a proposed mechanism for diamond growth based on surface interactions occurring between a surface and incoming carbon and hydrogen atoms, the ratio of carbon:hydrogen incident on the substrate surface has …
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An ORC Flip Enables Bidirectional Helicase Loading
… bidirectional replication upon entry into S-phase. Interactions between three proteins and the Mcm2-7 helicase guide eukaryotic helicase loading. The origin-recognition complex (ORC) recognizes and binds origin DNA and recruits Cdc6. Mcm2-7 in complex with a third protein Cdt1 associates with …
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Evaporating cross flow spray jets in gas-solid circulating fluidized bed
Three-phase flow of solid-gas suspension with liquid spray is found in many industrial applications, including fluidized catalytic cracking in petroleum refinery process, and wet scrubbing process. This dissertation study is aimed to understand the gas-solid-liquid three-phase flow structure, phase …
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Applications of Data-Driven Learning Models in Fluid Mechanics: Solid-Fluid Multiphase Systems and Bat Flight
Fluid-solid interactions are central to numerous industrial, environmental, and biological systems, encompassing particle-laden flows in chemical processing, urban airflow, and biological locomotion. Understanding and studying these interactions is essential for optimizing engineering designs and …
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Intricate Dynamics of Droplet-Substrate Interactions Beyond Conventional Limitations
… their surroundings, with applications spanning phase-change heat transfer, material transport, surface engineering, and energy optimization. While droplet dynamics have been extensively studied over the past several decades, advancements in surface engineering, such as the development of …
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Capillary forces and wetting dynamics by diffuse-interface modeling
… lungs to the thin coating of surfaces. The three-phase interactions involved at microscopic scales play a critical role. Adding solid particles to an emulsion, for example, can drastically change the flow behavior due to capillary bridging between the particles. The study of these three-phase …
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Influence of ultrasonic cavitation treatment on fragmentation and de-agglomeration of primary intermetallics and oxides formed in Al alloys
… for accelerating diffusion in solid and liquid phases, has always mesmerised the scientific community with the remarkable effects that it produces during its application in fields ranging from automotive, aerospace, military, construction to even medical (therapeutics) and food sector. One such …
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CFD-DEM modelling of liquid-solid-gas flow in rotary drums and an application in solar panel leaching
… study of the fluid dynamics and particulate interactions inside the rotary drum is pivotal for design refinement and efficiency improvement. Considering the inherent presence of gases and the typically nonspherical nature of particles in the rotary drums, this thesis developed an unresolved …