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Showing 1 to 20 of 117 for “"finite-size"”.
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Multiple Scattering of Electromagnetic Waves by Random Scatterers of Finite Size
Made available in DSpace on 2014-12-08T22:23:28Z (GMT). No. of bitstreams: 1 6408412.pdf: 2443210 bytes, checksum: 2b6ac6a50da2334274208ba81be04c15 (MD5) Previous issue date: 1964
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Theoretical and computational advances in finite-size facility placement and assignment problems
… methods for the optimal placement of multiple, finite-size, rectangular facilities in presence of existing rectangular facilities, in a plane. Applications of this research can be found in facility layout (re)design in manufacturing, distribution systems, services (retail outlets, hospital …
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Electron-ion correlation and finite-size effects in quantum Monte Carlo simulations
… problems involving geometry optimization and finite-size effects. The phase diagram produced by our electron-ion DMC simulations differ from previous DMC studies, showing 50 GPa higher molecular-molecular transition and 150 GPa higher molecular-to-atomic transition pressures. Both …
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Finite size effects in the thermodynamics of the free scalar field and the interacting SU(3) plasma
… are away from the thermodynamic limit, i.e., at finite volume. In the first part of the thesis, we study the thermodynamic properties of the free scalar field in a variety of finite-size geometries (the cube, the cuboid and the parallel-plates geometries) when the field is subjected to Dirichlet …
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Finite size corrections to the equation of state for nuclear matter near the phase transition hadron gas to quark gluon plasma
It is widely accepted that the finite size of the hadrons must be taken into account in a thermodynamic description of the hadron gas near the phase transition to quark gluon plasma. Existing thermodynamic models introducing a .correction due to the finite size of the particles are reviewed and …
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Topics in Lattice Statistics: I. Systematics of Multilayer Adsorption Phenomena on Attractive Substrates. Ii. Dynamical Critical Exponents for the Kinetic Ising Model: A Finite-Size Hamiltonian Calculation
… to the study of kinetic Ising models, using finite-size Hamiltonian methods.
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Topics in Lattice Statistics: I. Systematics of Multilayer Adsorption Phenomena on Attractive Substrates II. Dynamical Critical Exponents for the Kinetic Ising Model: A Finite-Size Hamiltonian Calculation
Submitted by Carolyn Rauber (crauber2@illinois.edu) on 2011-06-02T17:26:09Z No. of bitstreams: 1 1982_pandit.pdf: 5769733 bytes, checksum: 3cf1cd189904f2a0b5ccbc3238ccdebc (MD5)
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Correlation Lengths and Times in Copper Manganese Spin Glasses From Simulation and Experiment
… field-dependent aging and measurements of finite-size effects are used to study correlation lengths and times of Cu1-xMn x spin glasses. Several results are found: a single model inspired by the Parisi solution explains both the experimentally observed aging and equilibrium fluctuation …
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Correlation lengths and times in CuMn spin glasses from simulation and experiment
… field-dependent aging and measurements of finite-size effects are used to study correlation lengths and times of Cul-xMnx spin glasses. Several results are found: a single model inspired by the Parisi solution explains both the experimentally observed aging and equilibrium fluctuation …
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Quantum Monte Carlo: Applications of the Twist -Averaged Boundary Conditions and the Calculation of Forces
… of QMC to extended systems subjects to finite size effects because the simulation is often done with a small system in a super cell geometry. Periodic boundary condition is commonly used in such a setup which leads to large and fluctuating finite size error. Twist-averaged boundary …
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Quantum Monte Carlo: Applications of the Twist-averaged Boundary Conditions and the Calculation of Forces
… of QMC to extended systems subjects to finite size effects because the simulation is often done with a small system in a super cell geometry. Periodic boundary condition is commonly used in such a setup which leads to large and fluctuating finite size error. Twist-averaged boundary …
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Linear-Scaling Density Functional Theory and Theoretical Electron Energy Loss Spectroscopy Investigations of Surfaces and Defects in Nanomaterials
… calculations on large cells to address elastic finite size effects and employing a correction scheme to remove electrostatic finite size effects. Finally, the properties of an extended grain boundaries defect in GaAs were investigated, focussing on properties relevant for optoelectronics.
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Feedback Control Theory in Stochastic Dynamical Systems
… For classical model, I perform a study on finite-size effects at the phase transition in the Nagel-Schreckenberg traffic model as an example of non-equilibrium many body stochastic dynamical system. For quantum mechanical model, I introduce an optimal measurement-based feedback control …
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Iterative and variational homogenization methods for filled elastomers
… — and their microstructure — i.e., the content, size, shape, and spatial distribution of the filler particles. This will be accomplished via a combination of novel iterative and variational homogenization techniques capable of accounting for interphasial phenomena and finite deformations. Exact …
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Quantization of spin waves in ferromagnetic Ni80Fe20 nanoring
… modes due to lateral confinement in the finite size rings.
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Exploiting polar interfaces for photocatalytic water splitting: application to the anatase-cuprous oxide heterojunction
… the properties of polar interfaces coupled with finite size effects. By tuning the properties of a polar heterojunction, it may be possible to realize tailored surface chemistries that are optimized for oxidation and/or reduction. To demonstrate this concept, we computationally explore the …
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Modeling and optimization of non-phased two-dimensional ultrasonic arrays.
… approximation. This model is then refined to finite-size transducers and finite-size defects inside the sample. A new method of obtaining the beam structure in such multi-layered media is presented. The advantage of this method is that it allows for a very fast calculation while the precision …
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An Exploration of Quantum Critical Phenomena in One-Dimensional Lattice Systems: Geometric Frustration & Quantum Fluctuations
… this context, we show the dramatic importance of finite-size effects when a first-order quantum phase transition occurs in the nearby region of multi-critical point containing also a second-order quantum phase transition. Through the use of finite-size scaling we highlight that a bipartite measure …
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Spin Polarization of Ground State Electron Gas at Low Densities
… wavefunction or density matrix at zero and finite temperature, we apply the Variational Density Matrix method. We use Random Phase Approximation to derive two-body Jastrow correlation functions. We also include backflow and threebody correlations in the wavefunction, to get a better upper …
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