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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 98 for “"Potts"”.
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Graphical representations of Ising and Potts models: stochastic geometry of the quantum Ising model and the space-time Potts model
… techniques for studying it. The space–time Potts model emerges as a natural generalization of the quantum Ising model. The basic properties of the phase transitions in these models are treated in this chapter, such as the fact that there is at most one unbounded fk-cluster, and the resulting …
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Enhanced Potts Models for Improved Computational Protein Design
… For a target structure, the model outputs a Potts model, an energy table describing the self and pairwise energetic contributions for all amino acids at all positions. In this thesis, I investigate approaches for enhancing TERMinator’s outputted Potts models for improved computational protein …
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Modelo de potts com acoplamentos aleatórios em redes hierárquicas
… de fase e as propriedades críticas do modelo de Potts de q estados é investigado dentro de uma estrutura do grupo de renormalização do espaço real. O modelo é definido na rede hierárquica diamante de dimensão fractal arbitrária d e fator de escala b = 2. A transição de fase da fase paramagnética …
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A Dynamical Approach to the Potts Model on Cayley Tree
… is assigned a spin σi ∈ {±1}. The q-state Potts model is a generalization of the Ising model, where each spin σi may take on q ≥3 number of states {0,··· ,q−1}. Both models have temperature T and an externally applied magnetic field h as parameters. Many statistical and physical properties …
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Lattice models of glasses and Potts models for community detection
In Part I, we construct a configurationally constrained lattice glass model following the example of Biroli and Mezard (Phys. Rev. Lett., 82, 025501 (2001)), which we denote t154. By examining the relaxation, atomic motion, Stokes-Einstein relationship violation, time-dependent displacement (van …
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Introduction to the Glauber dynamics for the Curie-Weiss Potts model
… to the Gibbs distribution of the Curie-Weiss Potts model. Therefore, essential aspects of discrete-time Markov chains on a finite state space are examined, especially their convergence behavior and related mixing times. Furthermore, special emphasis is placed on a consistent and comprehensive …
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Systems Driven out of Equilibrium with Energy Input at Interfaces or Boundaries
… we study magnetic friction that results when two Potts systems move with respect to each other. In this research, we first study a model that consists of two interacting Potts blocks, where one block moves on top of the other. As a result, the system is driven out of equilibrium constantly. In our …
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Effect of existing building on tunneling-induced ground movements
… compared with similar prior studies reported by Potts and Addenbrooke (1997). The current study uses the Plaxis finite element code together with the Hardening Soil (HS and HSS) family of constitutive models in order to represent the undrained shear behavior of clay. Input parameters of the HS …
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Water stress protein is secreted, is subject to rapid proteolysis upon rehydration of desiccated cells, and may be glycosylated
… <i>Nostoc commune</i> (Scherer, S. and Potts, M. 1989. J. BioI. Chem. 264:12546-12553). In the original study, several inconsistencies were noted and are addressed in this body of work. Firstly, the microheterogeneity noted on two dimensional electrophoresis gels indicated the …
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Distribution and life history of the endangered James Spinymussel, pieurobema collina (bivalvia: unionidae)
… in Craig Creek, Virginia, and the South Fork Potts Creek, West Virginia. Glochidia were released from late June through early July in the South Fork Potts Creek, at mean water temperatures between 21 and 25 °C, and discharges between 0.013 and 0.050 m l/sec. Field observations and laboratory …
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Solution of sign and complex action problems with cluster algorithms
… An example for a non-fermionic model is the Potts model approximation to QCD at non-zero baryon density. The three-dimensional three-state Potts model captures the qualitative features of this theory. It has a complex action and so the Boltzmann weight cannot be interpreted as a probability. …
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Phase transitions and critical phenomena: Universality and global multicritical phase diagrams from position-space renormalization-group studies
… The spin-l Ising (Blume-Emery-Griffiths-Potts) model on the square lattice with nearest-neighbor ferromagnetic exchange interactions (both bilinear (J) and biquadratic (K» and crystal field interaction (A) is studied via a PSRG transformation. By building symmetries into a truncated …
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TNF-[alpha] in host immunity to tuberculosis : in vivo and in vitro studies of protection and pathogenesis
… deformities suggestive of spinal tuberculosis (Potts Disease) seen in Neolithic man (5000 BC) [Sager P, Schalimtzek M and Moller-Christensen V, 1972]. The earliest written reports similar of tuberculosis probably come from Chinese writings of about 2700 BC, which mention "lung fever" and "lung …
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On some classes of birth and death processes in continuum
… are introduced: the ecological model and Glauber-Potts type model. For all of the above-mentioned processes, the existence of the associated dynamics is proven. The Vlasov-type scaling is applied to the two-component models and the corresponding Vlasov equations are derived.
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Physical Models in Community Detection with Applications to Identifying Structure in Complex Amorphous Systems
… an exceptionally accurate spin-glass-type Potts model for the graph theoretic problem of community detection. With a simple algorithm, we find that our approach is exceptionally accurate, robust to the effects of noise, and competitive with the best currently available algorithms in terms …
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On the partition function for the three-dimensional Ising model
… using a transfer matrix approach. Q-state Potts model partition functions on two- and three-dimensional lattices are also computed and analysed. Our results are analysed as distributions of zeros of the partition function in the complex-temperature plane. We then look at sequences of such …
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Measures of stand structure and its relationship to site in the south-central Ridge and Valley Province of Virginia
… were established in Appalachian oak forests on Potts Mountain in Craig County, Virginia to assess vegetation structure and its relationship to differences in site. A number of structural parameters were measured by height strata to determine vertical stratification patterns. Foliage density was …
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The effects of toy exposure on children's prosocial and antisocial behavior
… (1976) measures for antisocial behavior, Potts, Huston, and Wright's (1986) measures for prosocial behavior, and Radke- Yarrow, Zahn-Waxler, and Chapman's (1983) description of prosocial behavior. The theoretical basis for this study lies in the social learning theories offered by Bandura …
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Soil and plant water stress in an Appalachian oak forest: its relationship to topography and forest site quality
… stress relationships on the southeast face of Potts mountain in Craig County, Virginia. Topographical effects on available water are especially pronounced during low late season rainfall levels encountered in the Ridge and Valley physiographic province of Virginia. The soil moisture trends and …
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