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 15 of 15 for “"Statistical, Nonlinear, and Soft Matter Physics"”.
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Emergent Critical Properties in Liquid-Gas Transition and Single Dislocations in Solid He4
<p>My research focuses on the analytical and numerical study of seemingly completely different systems - the classical critical point of the liquid-gas transition and a quantum topological defect (dislocation) in solid Helium-4. The unifying theme, though, is <em>Emergence</em> - the appearance of …
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Interdisciplinary Studies of Complex Network and Machine Learning and Its Applications
… we introduce the concept of network-based statistical inference methods of two types: network structure inference and variable inference. For network structure inference, we introduce correlation matrix, graphical Lasso, network clustering and identify the influencer in the network. For …
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Variable Structure Feedback Control with Application to Spacecraft with Small Thrust Propulsion Systems
… research satellites to have accurate guidance and control systems. Small propulsion systems will also be beneficial for multiple small spacecrafts used future exploration expeditions beyond low Earth orbit. These small spacecrafts benefit from the simplicity of low thrust cold gas propulsion …
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Predicting the Hydration Free Energy of Small Alkanes and Alcohols from Custom, Electronic Structure-Based Force Fields
<p>Mathematical theories reveal the fundamental physics involved in experimentalphenomena. Computer models of such theories are routinely used to corroborate or explain experiments and predict properties of chemical systems. Therefore, an important effort in computational chemistry is the …
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Orbital And Spin Angular Momentum Light Generation, Interactions, Special Photons, And Applications In Liquids, Solids, Vapors And Biological Tissue Media
… as wavelength, coherence, speed, polarization and wavefront. The aim of this thesis is the study of two salient properties of light exploring light carrying polarization and space degree of freedom of the wavefront. The wavefront of light is complex with different states of polarization. …
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Enzymatically active microspheres for self-propelled colloidal engines
<p>Micro- and nano-motors have attracted numerous attentions from various scientific areas due to their potential applications. Most studies on self-propelled colloidal engines have exploited catalytic decomposition of hydrogen peroxide to drive the motor. Since the hydrogen peroxide is caustic, it …
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Fatigue Performance and Shear Demand Distributions of Clustered Shear Connectors in Composite Bridge Girders
… current American Association of State Highway and Transportation Officials (AASHTO) Bridge Specifications assumes uniform shear flow demands at the steel-concrete interface of composite bridge girders. As stud pitch increases to beyond 24 in or as studs become clustered to account for pre-cast …
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Exponential Random Graphs and a Generalization of Parking Functions
<p>Random graphs are a powerful tool in the analysis of modern networks. Exponential random graph models provide a framework that allows one to encode desirable subgraph features directly into the probability measure. Using the theory of graph limits pioneered by Borgs et. al. as a foundation, we …
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Standard and Anomalous Wave Transport Inside Random Media
… thesis is a study of wave transport inside random media using random matrix theory. Anderson localization plays a central role in wave transport in random media. As a consequence of destructive interference in multiple scattering, the wave function decays exponentially inside random systems. …
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Development of Graphical Models and Statistical Physics Motivated Approaches to Genomic Investigations
… of the field. However, as technology improves and the body of research grows, we are faced with more questions than answers. Among these is the pressing matter of our incomplete understanding of the genetic underpinnings of complex diseases. Many hypotheses offer explanations as to why direct …
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Quantics Tensor Trains: The Study of a Continuous Lattice Model and Beyond
… all the methodology used to discretize functions and store them efficiently. In this section, the algorithm tensor renormalization group is explained for self-containment purposes. The second chapter centers around the XY model. Quantics tensor trains are used to describe the transfer matrix of …
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The Future is Now in Twisted Coil Polymer Actuators (TCPA)
<p>This thesis aimed to fabricate and test twisted coiled polymer actuators (TCPA) to understand the mechanical and thermal aspects of this artificial muscle fiber. The purpose of this thesis was to find a linear relationship using the LVDT sensor, fabricating TCPA fibers, and interpreting the …
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Hydrodynamics Of Drops And Particles Driven By Marangoni And Diffusiophoretic Forces
… investigates the hydrodynamics of particles and drops driven by forces generated by an asymmetrical physical and chemical surrounding environment. In the first part, a novel colloidal motor design driven by surface tension forces is proposed, utilizing an active Janus particle encapsulated in …
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Developing a 3D in vitro Model by Microfluidics
… tissue microenvironment for stimulating and characterizing the cellular behavior. In particular, the hydrogel-based 3D <em>in vitro</em> models allow the cells to grow and interact with their surroundings in all directions, thus better mimicking <em>in vivo </em>than their 2D …
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Robust Spacecraft Autonomy for Deep Space Exploration in Special Euclidean Group SE(3)
… but the ambitious goals of the Artemis program and the Moon-to-Mars campaign bring forward an array of new challenges. For scientists and engineers who are designing these missions, these challenges highlight the complexity and excitement of venturing beyond what we know.</p> <p>Many of these …