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 11 of 11 for “"surface instabilities"”.
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Viscoelastic free surface instabilities during exponential stretching
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, February 2002.
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Surface instabilities and interfacial phenomena for nanomanufacturing at the atomically-thin limit
… flexible and thus susceptible to mechanical instabilities that result in deformed out-of-plane morphologies. Such unique combination of material properties and mechanical anisotropy presents new scientific and practical challenges, but also enables novel opportunities in the nanomanufacture …
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Analysis of Dynamic Surface Instabilities in Soft Hydrogel Cylinders Subject to Laser-Driven Shock-Loading
… are known to exhibit a variety of mechanical instabilities which may lead to intricate surface deformation patterns. In particular, creases and wrinkles have been found to play an important role in the morphogenesis of soft tissues and tumor growth. Soft matter instabilities are also relevant …
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Instabilities in newtonian films and nematic liquid crystal droplets
The instabilities of Newtonian films and nematic liquid crystal droplets within the framework of the long wave (lubrication) approximation are studied. For Newtonian films, it is found that, under destabilizing gravitational force, a contact line, modeled by a commonly used precursor film model, …
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Low-dimensional purple and blue bronzes: Crystal growth, characterization and optical properties
… crystal structure and associated Fermi surface instabilities. Single crystals of potassium blue and purple bronzes and sodium purple bronze have been synthesized using a temperature flux technique and XRD measurement was deployed to investigate the formation of the correct phase. Optical …
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Fluid Mechanics of High Speed Deformable Roll coating. An experimental and theoretical study of film thickness and stability in high speed deformable roll coating flow with Newtonian and non-Newtonian liquids
… window, is affected by non-uniformities and instabilities originating at higher operation speeds. Unlike other academic works, because of associated industrial relevance, particular attention was given towards the use of industrially relevant coating systems or generation of model fluids, …
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On the Influence of Faraday Waves on Transport in Resonant Acoustic Mixing
… are still gaps in understanding how Faraday surface instabilities affect momentum transport to the bulk fluid and particles therein. This work investigates the energy pathways that an oscillatory mixer has and connects surface deformation to bulk rotational flow and particle forcing. This …
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The effect of AC magnetic fields on liquid-metal free surfaces in industrialMHD
In this thesis we investigate free-surface instabilities which occur in various industrial processes involving liquid metal. Specifically, we examine a number of simple problems with a view to developing a plausible theoretical description based on MHD. Of particular interest is the behaviour of …
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Fabrication and characterization of synthetic substrates for use in rigidity cell culture studies of valvular interstitial cells for aortic valve tissue engineering
… by short functional lifetime and thrombogenic surfaces. Tissue engineered heart valve will have the ability to integrate with the surrounding tissue as well as to repair and remodel. However, a greater understanding of valve cell biology is required to induce analogous tissue formation. A …
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MOVPE metamorphic lasers and nanostructures engineering at telecom wavelengths
… that the limiting factors introduced by surface instabilities during epitaxy can be managed by an innovative design. The bottom and the upper cladding are built as a combination of AlInGaAs and InGaP alloys in a superlattice (SL) structure. The improved quality of the material was …
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Large-scale molecular dynamics investigations of ion-induced compositional dynamics leading to nanopattern formation at semiconductor surfaces
… versatile method for obtaining a wide variety of surface features on a broad range of materials, with structures such as ripples, quantum dots, terraces, and ordered holes being obtained for various experimental conditions. However, theoretical modeling is well behind the experimental progress, …