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 38 for “"material interface"”.
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Tailoring the redox enzyme-material interface for enhanced electro- and photocatalytic fuel synthesis
… electrode or a cheap and robust light harvester interfaced with a highly efficient catalyst. Redox enzymes serve as model natural catalysts that can convert substrates such as protons (H+) and CO2 to useful fuels such as hydrogen (H2) and formate (HCOO–) with higher efficiencies than artificial …
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Chemomechanics at the cell-material interface : measurements and implications of forced molecular unbinding
… chemically and mechanically characterized materials and cells that are relevant to microvascular physiology and pathology. In particular, the mechanical characterization of cell surface structure and force generation are realized via various atomic force microscopy (AFM) imaging techniques …
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The efficacy of a porous w/liquid Li hybrid system as a self-healing, adaptive plasma-material interface in future plasma-burning nuclear fusion reactors
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-08-01
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Expand material presence to material experience with volumetric thinking : voxel based multi-material printing in designing objects
Material serves as the first touchpoint between an object and a person. In current product development, material together with color and finishing is regarded as a separate entity from the form and function design. Every material needs to be paired with a series of optimal manufacturing processes …
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Sharp interface schemes for multi-material computational fluid dynamics
… we consider the solution of compressible multi-material flow problems, where each material is governed by the Euler equations and the material interface may be considered to be a perfect discontinuity separating macroscopic pure-material regions. Working in the framework of Godunov-type finite …
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Analysis of the scratch test for cohesive-frictional materials
… and strength properties of cohesive-frictional materials of the Mohr-Coulomb and Drucker-Prager type. Based on the lower-bound yield design approach, closed form solutions are derived for frictionless scratch devices, and validated against computational upper bound and elastoplastic Finite …
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Design of a Cyclic Sliding, Dynamically Loaded Wear Testing Device for the Evaluation of Total Knee Replacement Materials
… been used to evaluate total knee replacement materials are unidirectional and/or apply only static force. This thesis presents an alternate wear testing device capable of simulating the most prevalent motions of the knee, and applying physiologically-correct loading to the material interface. …
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On Physics of Durable Ice Phobic Surfaces
… heat transfer and mechanics of ice/water-material interface and elucidate physic-based routes was provided through which nano-scale could help to achieve exceptional icephobic surfaces. Here, we cast fundamentals of two new physical concept called magnetic slippery surfaces and …
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Numerical simulation of mixing in viscous-fingering displacements
… variance and relate it to the stretching of material interface between the fluids due to fingering. Our analysis predicts the optimum range of viscosity contrast and Peclet number that maximize fluid-fluid interfacial area by balancing the number of fingers with their length before diffusive …
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Consolidated periphery : commercial and highway interchange
… a physical and conceptual mediator; it is the material interface between highway and town, and the ideological interface between public space and private enterprise.
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Investigation into laser re-melting of inconel 625 HVOF coating blended with WC
… the residual stress levels at the coating base material interface. The indentation tests are carried out to determine the Young’s modulus and fracture toughness of the coating prior to laser re-melting. Corrosion resistance of coating is measured using potentiodynamic polarization technique …
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Near-Field Pressure Distributions to Enhance Sound Transmission into Multi-Layer Materials
… from incident acoustic waves across the air-material interface. Refraction also plays a role in preventing acoustic transmission, as the wave speed difference between air and solid materials results in an increase of the resulting propagation angles, creating near-field pressure distributions …
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Study of the mechanical and metallurgical properties of AMDRY 9954 HVOF coated Ti-6A1-4V alloy
… are carried out to investigate the coating-base material interface properties and the influence of heat treatment on the interface properties. Tensile tests are performed to evaluate the adhesion of the thermally sprayed coating to Ti- 6A1-4V alloy. The fatigue tests are conducted to study the …
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Dynamic delamination of patterned thin films
… fracture toughness of the thin film/substrate interface. The testing method involves using a laser-induced acoustic stress wave to load the film/substrate fracture plane in tension at very high strain rate (~10^7/s) leading to the inertia-driven interface delamination. A weak adhesive layer is …
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Modeling moderately dense to dilute multiphase reacting flows
… limits to a compressible seven-equation diffused interface method (DIM). Novel extensions are developed for modeling surface tension, viscous effects, arbitrary EOS, multi-species, and reactions. The use of a discrete equations method (DEM) relieves the need to use conventional stiff relaxation …
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Immersed Discontinuous Galerkin Methods for Acoustic Wave Propagation in Inhomogeneous Media
… where elements are allowed to be cut by the material interface. The proposed methods use the standard discontinuous Galerkin finite element formulation with polynomial approximation on elements that contain one fluid while on interface elements containing more than one fluid they use …
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High Frequency Transmission Spectroscopy
… for the characterization of a wide range of materials in a diverse set of problem domains. HFTS has potential implications for problem domains such as semiconductor manufacturing and counterfeit detection, disease/infection screening, and environmental monitoring. HFTS is rooted in …
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Silent Light, Luminous Noise: Photophonics, Machines and the Senses
… an integral, readably inscribed component - both materially and culturally - in both the works they produce, and via our reflexive understanding of the processes involved, of the images or light signals used to produce them. Other practitioners' works are critically engaged to demonstrate how a …
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Peptide microarrays for the discovery of cell-ligand interactions that direct cell state
… levels such as gene modifications. Synthetic materials are able to similarly affect cell phenotype, and recent advances in microarray technology has allowed the systematic investigation of a large combinatorial space of material properties. As we gain new insights on the effects of chemical …
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Mechanism of Fatigue Crack Growth at Polymer/metal Interface
Fatigue crack growth along an Al/epoxy interface was examined under mixed-mode conditions. To provide different combinations of Mode-I and Mode-II conditions, a flexural peel (FP) technique was developed, which proved to be particularly useful for subcritical crack growth studies. Using this …
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