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 40 for “"Soft material"”.
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Nanoscale Thermal Transport at Graphene-Soft Material Interfaces
… consist of graphene dispersed in matrices of soft materials are promising thermal management materials. A fundamental understanding of the thermal transport at graphene-soft material interfaces is essential for developing these nanocomposites. In this dissertation, thermal transport at …
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Manipulating lipid mesostructure using hard and soft material additives
… misses their great potential as self-assembled materials with complex structures at the nm length scale. In this dissertation, I explore in a largely abiological fashion how new materials can be created from some of the most well-studied lipids. My approach to this, and how the dissertation is …
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Thermodynamic and morphological transitions in crystalline and soft material interfaces
Interfaces are defects present in all materials. Interface transitions are characterized by abrupt changes in interface structure, chemistry and/or morphology under suitable conditions. They exist in many material systems and often produce profound changes in material properties. Several interface …
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An Instrument for the Measurement of Soft Material Nonlinear Mechanical Response
Soft material research has seen significant growth in recent years, with emerging applications in robotics, electronics, and healthcare diagnostics where understanding material mechanical response is crucial for precision design. Traditional methods for measuring nonlinear mechanical properties of …
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Dynamic Studies of Instability-Triggered Intersonic Surface Detachment Waves in Soft Material Sliding
Spatially constrained soft structures under dynamic perturbation may evolve into a variety of organized morphological patterns such as wrinkles and random folds. These surface transformations are usually triggered by system bifurcation instabilities and regulated by energy redistribution. Among …
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Analytic Solutions to the Laplace, Poisson, and Biharmonic Equations with Internal Boundaries: Theory and Application to Microfluidic Dynamics
… boundaries. Internal boundaries are formed where materials with different properties meet to form interfaces. These interfaces arise in a variety of physical and engineering contexts such as in the evaporation of water droplets, dielectric double-spheres, and soft-material Janus drops. The …
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3D Printing of Soft and Biological Materials: Applications to Human Cochlear Modelling and Beyond
… tool for on-demand and rapid fabrication of materials. The field of soft material printing typically utilises inks that exhibit viscoelastic properties with elastic moduli in the kPa – MPa range, such as hydrogels and elastomers. Although soft material printing has been frequently used for …
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Investigations into the Form and Design of an Elbow Exoskeleton Using Additive Manufacturing
… are explored: 3D scanning, generative design, soft material, compliant joint, additive manufacturing, and 3D latticing. The experiments on TPU kerf cut found that the stress-strain curve of the sample can be modified by changing the cut pattern, it is even possible to control the linear region. …
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A Confocal Rheology Study of Network Stabilized Bicontinuous Emulsion Gels
In this thesis, a new bicontinuous soft material was discovered. Bicontinuous intraphase jammed emulsion gels (bipjels) were formed from critical mixtures of water and 2,6-lutidine and were stabilized with commercially produced alumina coated silica nanoparticles. Using a novel confocal rheology …
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Soft matter in motion: from actin to active emulsions
… as a discovery tool, we surveyed a range of soft material systems, including filamentous actin, liquid crystal droplet and block copolymer to study their dynamics under equilibrium and non-equilibrium conditions. By following the motion of filamentous actin under a fluorescence microscope, we …
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Transport of soft materials in crowded environment
… microscopy was used to study the transport of soft material objects in crowded environment. Delaunay triangulation and wavelet transform were adapted to extract more information from images of macromolecules with irregular shapes and heterogeneous transportation dynamics. Systems studied are …
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Modelling of the inertia welding of Inconel 718
… is the reason for the presence of the very soft material at the welding interface. The models were used to predict the displacement of the weld line (upset) with a lambda model to describe the constitutive relation of IN718 at high temperature. The results from the different models are in …
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From interfacial nanostructures to advanced constructs: harnessing surfactant self-assembly at liquid interfaces
… offers a promising platform for fabricating soft material structures by depositing an ink phase within an immiscible support bath. While this technique enables the creation of complex architectures for applications in biomedical engineering, drug delivery, and tissue scaffolding, its broader …
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Design for the most vulnerable: Preventing sudden infant death
… co-sleeping, as the weight of a parent or the soft material of a pillow can easily suffocate an infant. This thesis discusses and illustrates the design process for a crib that reduces the risk of SIDS and ASSB. The process utilizes empathic design research strategies, benchmarking of current …
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Design and development of a smart, self-contained, portable negative pressure wound therapy device
… the bandage itself. To accomplish this goal, a soft-material, fuel-cell based actuator was designed and incorporated into a self contained, compact pumping mechanism. Additionally graphene-oxide barriers were designed to allow for fluid management at the wound site. The designed bandage was able …
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Quantitative assessment of elasticity properties of skin using surface acoustic wave (SAW) method
… in both axial and transverse directions in soft material. It can be used to evaluate the mechanical properties of single, double-layer soft tissue mimicking phantoms and different sites of human skin ex vivo and in vivo non-invasively. This study also demonstrates that the SAW method can be …
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Ruga mechanics of composite media with soft inclusions
… deformation of two-phase fibril composites with soft inclusions, specifically, the influence of soft inclusions on the behavior of fibrils under compressive loading. It is demonstrated that the inclusion of soft material in the fibril matrix substantially alters the post-bifurcation response of …
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Methods to improve indentation results on soft materials and anisotropic biological tissues
Mechanical properties of soft biological tissues are key to the functionality of such tissues. Indentation has become a leading technique for characterizing the localized mechanical properties of materials, and it is an increasingly popular technique for studying biological materials. This thesis …
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Mechanisms of transfer film formation on data recording heads
… forms on the surface of the ferrite. This soft material increases the wear rate and so reduces the amount of stain present on the heads. The stability of the binder under high humidity and under high temperature as well as the chemical reactions that might occur on the ferrite poles of the …
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Large Two-photon Absorption of Highly Conjugated Porphyrin Arrays and Their in vivo Applications
… multimodal diagnostic nano-structured soft-material for deep tissue imaging at high resolutions. We demonstrated key proof-of-principle experiments using NIR-emissive polymersomes for in vivo two-photon excited fluorescence imaging in mice, allowing visualization of blood vessel …
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