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 24 for “"Porous Matrix"”.
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Development of high-performance receivers equipped with a metal porous matrix
L'abstract è presente nell'allegato / the abstract is in the attachment
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The mechanisms involved during the desaturation process of a porous matrix
… of soil suction. Examining the drying process of porous material gave perspective into the development of negative pressures. The drying material was modeled by a regular packed matrix of equal diameter spheres. Configuring the water into the geometric shape of pendular rings simulated the water …
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Lubrificação hidrodinâmica em mancais radiais porosos
The performance of finite porous journal bearings under static loads is investigated. An analytical solution is presented and the results relate the eccentricity ratio, the attitude angle, the geometry and the load, friction and design parameters, the latter being a function of the permeability of …
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An experimental method to measure crystal growth rate in porous materials and quantity deformation developed during crystal growth
… dam-ages produced by salt crystallisation in porous building materials, a phenomenon long considered as one of the most important cause of deterioration problems, occurring in monuments exposed to a wide range of environmental conditions [125]. Sodium sulphate in particular is widely …
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Solid-fluid interactions in porous media : processes that form rocks
… model that simulates flow and reaction through a porous matrix. The model is used to study and compare the different characteristics of dissolution and deposition, and to simulate different settings for melt upwelling in the mantle.
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Recovery Strategies and Flow Modeling in Fractured Grosmont Carbonates with High Permeability Conduits
… flow in both free flow fractures and porous matrix. The application range and validity of Brinkman-Stokes multi-physical flow on karstified carbonates are discussed.
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An unstructured finite volume simulator for multiphase flow through fractured-porous media
… along fractures and the interaction with the porous matrix. The unstructured finite volume model provides a tool for the numerical simulation of multiphase flow (inmmiscible and incompressible two-phase flow) in two-dimensional fractured media. We use a finite volume formulation, which is …
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Pore-scale dynamics of immiscible two-phase flow on porous and fractured media
… two-phase flow displacement dynamics in porous media provides crucial information to natural and industrial processes such as nonaqueous phase liquid (NAPL) contamination of groundwater, carbon dioxide injection and storage, and enhanced oil recovery (EOR) operations. It has the potential …
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Experimental Study of Meniscus Thin-Film Evaporation in a Horizontal-Tube, Falling-Film Heat Exchanger, Focusing on Dynamic Contact Angle Variation of an Advancing Meniscus
… subcooling, evaporator wall superheat, and porous-layer coating on the portions of sensible and evaporation heat transfer in a falling-film system. The porous layer was found to enhance both sensible and evaporation heat transfer by exploiting the capillary pumping of the porous matrix, …
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Toughening mechanisms in weak matrix ceramic composites
<p>"Tough behavior of ceramic matrix composites is closely related to the weak interface between fiber and matrix. The weak interfaces in composites have been provided by reducing the chemical bonding and the residual thermal stresses between constituents. A new way to introduce the weak interface …
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Hydraulic and Electrokinetic Delivery of Remediants for In-situ Remediation
… organic compounds when injected into saturated porous media. The current study evaluated nZVI mobility and subsequent reactivity with in-situ contaminants in a variably saturated porous media. The nZVI particles, synthesized onsite at subzero temperatures, demonstrated complete trichloroethene …
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Deoxidation studies : The interaction of vitreous silica with molten aluminium and systems of aluminium, manganese, iron and silicon.
… transport of the metallic species through the porous matrix of a solid oxide reaction product. At temperatures between 760°C and 860°C the reaction product layer is porous as a result of volume changes of phases formed during reaction and the reaction rate increases with temperature. At …
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High density animal cell culture systems using porous supports
Monolithic porous ceramic and porous polystyrene microcarriers were examined as supports for large scale mammalian cell culture. Vero cells and transformed baby hamster kidney (BHK) cells which produced human transferrin were grown in three different reactor configurations: a fixed bed ceramic …
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The convective desalination of sea ice
… as liquid brine in the interstices of an ice matrix. My focus is on one of the processes by which the salt content of sea ice decreases, namely convective desalination, which is also often called gravity drainage by geophysicists. Modelling convective desalination requires an understanding not …
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Modeling Phase Change Heat Transfer of Liquid/vapor Systems in Free/porous Media
… two component, liquid/vapor systems confined in porous media heated by electromagnetic radiation, approximated by a spatially dependent volumetric heat source term in the energy equation. The objective of this work is to utilize the numerical methodology presented herein to predict maximum …
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Developing a single dressing containing both antifungal and antibacterial drugs for treating mixed infections in diabetic foot ulcers
… between films (continuous sheets) and wafers (porous matrix). XRD confirmed the presence of calcium carbonate in the dressings and FTIR showed that the addition of drug caused the shift of peaks towards a higher wavenumber due to hydrogen bonding formation. Wafers showed better wound dressing …
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The functional role of tectorial membrane poroelasticity in cochlear mechanics
The tectorial membrane (TM) is an extracellular matrix that overlies the mechanically sensitive hair bundles of sensory receptor cells in the inner ear. Based on this strategic position, it has long been accepted that the TM plays a critical role in the stimulation of sensory hair cells. Early …
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Modeling of transport mechanisms and quality changes during the microwave frying of foods by solving hybrid mixture theory-based unsaturated transport equations coupled with maxwell's equations of electromagnetism
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-08-01
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Development of Co-processed Plasticized Cellulose Acetate for Sustained Release Matrix Tablets
… a good polymer candidate for sustained release matrix tablets. Sustained release matrix tablets of cellulose acetate can be prepared by direct compression or wet granulation methods. However, previous studies showed that a large amount of CA was required to achieve the desired sustained release …
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Geomechanically coupled modelling of fluid flow partitioning in fractured porous media.
… can be stored and produced from the rock matrix, the fracture network, or both. Normally the fracture network is depleted much faster than the matrix blocks due to its increased hydraulic conductivity; consequently, the recovery factor is low for these reservoirs. Additionally, the in-situ …
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