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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 1200 for “"Disordered"”.
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Avalanches in disordered systems
The idea of systems that evolve via avalanches is a simple, yet powerful one. A collection of elements that interact with one another, with each element possessing the ability to change the state of other elements when it undergoes a change. These other newly changed elements may affect yet more, …
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Photon Statistics in Disordered Lattices
<p>Propagation of coherent waves through disordered media, whether optical, acoustic, or radio waves, results in a spatially redistributed random intensity pattern known as speckle -- a statistical phenomenon. The subject of this dissertation is the statistics of monochromatic coherent light …
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Dynamics of disordered harmonic lattices
… interpretation of the complex nature of the disordered spectrum is given. The effects of disorder on the dynamics of binary disordered harmonic chains have been studied and have been found to be quite pronounced"--Abstract, page ii.</p>
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Quantum phenomena in disordered conductors
… consider three separate phenomena that arise in disordered conductors. The first part is devoted to the development of the theory of size and disorder dependence in the Kondo effect. We demonstrate that for a thin film of thickness L with mean-free path £, disorder provides a correction to the …
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Sorption in disordered porous media
The lattice-gas model of sorption in disordered porous media is studied for a variety of settings, using existing, updated and newly developed numerical techniques. Firstly, we construct an efficient algorithm to calculate the exact partition function for small lattice-gas systems. The exact …
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Localization in disordered periodic structures
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1988.
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Defects and Rearrangements in Disordered Solids
… thesis, I will investigate the properties of disordered materials under strain. Disordered materials encompass a large variety of materials, including glasses, polymers, granular matter, dense colloids, and gels. There is currently no constitutive equation based on microscopic observables that …
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Weight Stigma, Cognitions, and Disordered Eating
… established that weight stigma is predictive of disordered eating (DE) cognitions, which are, in turn, predictive of DE behaviors. The current study explored the unique contribution DE cognitions make to DE behaviors while controlling for other DE cognitions. The DE cognitions examined in the …
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Localization properties of nonlinear disordered lattices
In this thesis, the properties of nonlinear disordered one dimensional lattices is investigated. Part I gives an introduction to the phenomenon of Anderson Localization, the Discrete Nonlinear Schroedinger Equation and its properties as well as the generalization of this model by introducing the …
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Quantum phase transitions in disordered magnets
… weak disorder on quantum phase transitions in disordered magnets. The presence of disorder in the system can lead to a variety of exotic phenomena, e.g., the smearing of transitions or quantum Griffiths singularities. Phase transitions are smeared if individual spatial regions can order …
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Study of artificially disordered optical fibers
… investigated. Experiment shows that a segment of disordered MMF as short as 10 cm is sufficient to distribute power uniformly over all co-propagating modes and the intensity at the output surface of the fiber follows the Rayleigh negative exponential function. To explain the experimental findings, …
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Does Social Media Promote Disordered Eating?
<p>Hispanic people are the largest and fastest-growing minority group in the U.S. with a total of 18.5% of the U.S population being of Hispanic descent (United States Census Bureau, 2020). Although eating disorders (ED), particularly those involving binge eating, comprise a significant health …
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Small Molecule Binding to Disordered Proteins
… includes many proteins that are entirely disordered or contain long disordered regions. Although these proteins are linked with many diseases, there are currently no clinically-approved drugs that have been shown to target these proteins in their monomeric forms. In fact, disordered …
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Probing Order within Intrinsically Disordered Proteins
… natively unfolded – or so-called intrinsically disordered – proteins, is rapidly developing. Protein disorder content has been positively correlated with organismal complexity, with over thirty percent of eukaryotic proteins predicted to contain disordered regions. However, the biophysical …
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Delocalization phenomena in strongly disordered systems
… we study delocalization mechanisms in strongly disordered systems. We focus on one-dimensional systems where the localizing effects of disorder are strongest. Our explorations of delocalization mechanisms will reveal new insights into the nature of Anderson transitions in the context of the …
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Ultracold fermionic atoms in disordered potentials
… lattice to the disorder potential to realize the disordered Fermi-Hubbard model, which is a minimal model for strongly correlated electronic solids. The interplay of interactions and disorder is investigated. We find an Anderson-like disorder-driven metal-to-insulator transition as well as …
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Disordered insulator in an optical lattice
Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2011-06-06T13:19:51Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Pasienski_Matthew.pdf: 17424692 bytes, checksum: bd55e794d41bd87dbf146fd3dd4617ce (MD5)
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Investigating Quantum Processes in Disordered Materials
… impediment to this is that real materials are disordered; characterised by crystalline imperfections, atomic vibrations and amorphous microstructures. The effect of disorder on a quantum system can generally be thought of as a perturbation that disrupts the material's underlying structure on …
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Intrinsically Disordered Proteins within the Genome
… structure determination, the `plasticity’ of the disordered proteins challenges the use of such ensemble averaged techniques. In this thesis, Molecular Dynamics simulations are used to characterize the disordered regions of three proteins that form the core of chromatin structure: histones, linker …
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Chaotic behaviour of disordered nonlinear lattices
… energy spreading in prototypical models of disordered nonlinear lattices, the so-called disordered Klein-Gordon (DKG) system, in one (1D) and two (2D) spatial dimensions. The normal modes' exponential localization in 1D and 2D heterogeneous linear media explains the phenomenon of Anderson …
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