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.
Results
Showing 1 to 20 of 142 for “"statistical physics"”.
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Graph polynomials and statistical physics
… have important applications in combinatorics and statistical physics. We generalize the Tutte polynomial and establish its correlations to the other graph polynomials. Finally, our result about the decomposition of planar graphs and its application to the ice-type model is presented.
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Statistical physics of error-correcting codes
In this thesis we use statistical physics techniques to study the typical performance of four families of error-correcting codes based on very sparse linear transformations: Sourlas codes, Gallager codes, MacKay-Neal codes and Kanter-Saad codes. We map the decoding problem onto an Ising spin system …
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Epidemic Inference from a Statistical Physics viewpoint
L'abstract è presente nell'allegato / the abstract is in the attachment
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Statistical physics of isotropic-genesis nematic elastomers
"Isotropic-genesis nematic elastomers (IGNEs) are materials that exhibit fascinating properties such as a remarkable softness in elasticity and do not undergo long-range nematic ordering, even at low temperatures. These materials are formed via the following process. Consider a melt or solution of …
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Statistical physics of dislocation nucleation by nanoindentation
… by developing analysis methods based on statistical thermodynamics, and are used to evaluate the probability of various atomistic mechanisms. The results of this procedure implicate a critical activation event occurring in a single atomic volume, with an activation enthalpy of a fraction …
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Statistical physics of molecular sorting in living cells
L'abstract è presente nell'allegato / the abstract is in the attachment
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Statistical physics and epidemic inference: methods and applications
L'abstract è presente nell'allegato / the abstract is in the attachment
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Quantum Statistical Physics of a Microscopic Glass Model
We investigate the quantum statistical physics of a microscopic mean-field glass model in various approximations using the replica method and effective action methods from quantum field theory. We recover results from a semiclassical treatment and find relations to quantum spherical p-spin models.
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Statistical physics of network communities in economic systems
In the last decade, the study of big networked systems has received a great deal of attention thanks to the increased availability of large datasets and the technology to analyze them. To unravel regularities and behaviours from his enormous quantity of data and supply suitable models, we need …
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Nonlinear dynamics and statistical physics of excitable systems
In the search for the mechanisms of neuronal information coding, attention has recently shifted towards the possible role of neuronal firing correlation. The present thesis addresses the question of how coupled neuronal systems synchronize. Neurons can be described as dynamical systems through the …
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Understanding molecular and cellular processes using statistical physics
Using statistical physics principles to solve problems in biology is one of the most promising directions due to the complexity and non-equilibrium fluctuations in biological systems. In this work, we try to describe the dynamics at both cellular and molecular levels. Microtubule dynamics and …
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Statistical physics of semidilute polymer systems soft billiard systems
… with a problem related to the foundations of statistical physics. We study a variation of a Sinai-type billiard system, where circular scatterers of radius R are centered on the lattice sites of a 2-d square lattice and given a finite potential height U (measured in units of kinetic energy). …
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Statistical Physics of Soft Random Solids: Vulcanization, Heterogeneity, and Elasticity
In the second part of this thesis, Chapters 3, 4, and 5, spatial heterogeneity in the elastic properties of soft random solids is examined via vulcanization theory. The spatial heterogeneity in the structure of soft random solids is a result of the fluctuations locked-in at their synthesis, which …
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Statistical Physics of Semidilute Polymer Systems (And); Soft Billiard Systems
This thesis consists of two disjoint parts. In the first part, we carefully study the semidilute regime of polymer solutions. The renormalization group (RG) method using the $\varepsilon$-expansion has been a systematic method giving good semiquantitative agreement with both real and computer …
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Statistical physics of T cell receptor development and antigen specificity
… I describe work that brings together statistical mechanics and cell biology to shed light on how key regulators of the adaptive immune system, T cells, are selected to enable pathogen-specific responses. A model of T cell development is introduced and analyzed (computationally and …
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Development of Graphical Models and Statistical Physics Motivated Approaches to Genomic Investigations
… genetics. These range from pointing out flaws in statistical testing to invoking the complex dynamics of epigenetic processes. In the studies outlined here, however, we focus on the hypothesis that interactions between genes may be a potential culprit. To probe this hypothesis, we begin by …
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Unveiling Roadway Network Safety: Application of Statistical Physics to Crowdsourced Velocity Data
… revisits traffic safety from the perspective of statistical physics, positing universal temporal and memory effects to delve into the internal structure of traffic by exploring higher-order statistics. The examination of the internal structure enables the uncovering of near-miss incident risks in …
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Statistical physics and biological information : hydrophobicity patterns in protein design and differential motif finding in DNA
(cont.) is dictated by the solvent accessibility of structures. The distinct intrinsic tendencies of sequence and structure profiles are most pronounced at long periods, where sequence hydrophobicity fluctuates less, while solvent accessibility fluctuates more than average. Correlations between the …
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Statistical physics of biological self-organization : case studies in protein folding and adaptation to time-varying fields
In this thesis, we use the methods of statistical physics to provide quantitative insights into the behavior of biological systems. In the first half of the thesis, we use equilibrium statistical physics to develop a phenomenological model of how the hydrophobic effect impacts the structure of …
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From image co-segmentation to discrete optimization in computer vision - the exploration on graphical model, statistical physics, energy minimization, and integer programming
… as all their connections with the fundamental statistical physics. We aim to review the various aspects of the concepts, models, algorithms, etc., in a systematic way and from a different perspective. For instance, we review the correspondences between the commonly used unary/binary energy …
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