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 20 of 48 for “"Ewald"”.
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Fast multipole acceleration of periodic Green's function using spherical harmonics and Ewald summation
… An alternative representation known as Ewald summation can be used to evaluate PGF with exponential convergence and high accuracy. Despite the use of Ewald summation to evaluate PGF quickly, the MOM solution for a periodic scattering problem is still too slow. The matrix fill time for a …
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Hermann von Helmholtz, Ewald Hering y la visión del color : ¿Una controversia sobre estilos de razonamiento?
… controversia entre Hermann von Helmholtz y Ewald Hering. Dentro de la fisiología de la percepción visual, varios temas exigían atención, entre ellos, la percepción del color. Tanto Helmholtz como Hering propusieron distintas teorías sobre el correlato fisiológico de la percepción del color y …
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Large Scale Simulations of Brownian Suspensions
… scaling is obtained by employing a Particle-Mesh-Ewald (PME) approach whereby near-field interactions are evaluated directly and far-field interactions are evaluated using a grid based velocity computed with FFT's. This approach is readily extended to include the effects of Brownian motion. For …
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A tuba szerepe a rézfúvós kamarazenében
… továbbá tubás szemszögből vizsgálom Victor Ewald 1. számú rézfúvós kvintettjének problematikus részeit.
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Fast simulation methods for soft matter hydrodynamics
… expansion and constraints on particle dynamics. Ewald sum splitting, which decomposes the sum of slowly decaying interactions into two rapidly decaying sums evaluated indepently in real space and Fourier space, is used to accelerate the calculation and serves as the basis for a new technique to …
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Slab-Geometry Molecular Dynamics Simulations: Development and Application to Calculation of Activity Coefficients, Interfacial Electrochemistry, and Ion Channel Transport
… structure. The charged-sheets, 2-D Ewald, corrected 3-D Ewald, and corrected particle-particle-particle-mesh (P3M) methods were compared for efficiency and applicability to slab-geometry electrolyte systems with discrete water molecules. The P3M method was preferred for long-range …
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Ethnomathematics : new approaches to its theory and application
… been studied and practiced since the 1920s, when Ewald Fettweis pursued his first research on this subject. Two other important forerunners of ethnomathematics are, according to the author, Otto Raum and Raymond Wilder. The author proposes a new approach for the theory of ethnomathematics, namely …
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Estudo termodinâmico de gelos de spin em uma geometria do tipo malha
… Monte Carlo (algoritmo de Metropolis) e sorna de Ewald Alguns dos re- sultados Obtidos foram 0 aparecimento de um Vórtice Como estado fundamental da rede Com Condições de Contorno aberta, a dependência da energia do estado fundamental Com 0 tamanho da rede e distinção entre fases, uma ordenada e …
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Pope Gregory's care of the Papal Estates from 590 to 604, as shown in his letters to his stewards
… the edition of the Epistolae published by Paul Ewald and L. M. Hartman in Monumenta Germaniae Historica (Berlin, 1887-1899), which is the best critical text available. The letters still extant total eight hundred fifty-four. On reading these, I discovered slxty addressed to various Papal agents …
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Expository Preaching at the Dawn of the Reformation: An Evaluation of Martin Luther as Preacher in Light of Modern Expository Theory
… preacher. Contemporary authors such as Ewald Plass, Peter Brooks, Fred Meuser, Sydney Greidanus, James MacKinnon, John MacArthur, and Hughes Oliphant Old describe Luther as an expository preacher, yet none of them clarifies how or in what way they reach that conclusion. To that end, …
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Atomistic simulation of strength and deformation of ceramic materials
… the Newton's equations of motion, extension of Ewald summation to a binary ionic lattice for phonon dispersion, elastic constant, and heat current calculations, and a stand-alone scheme for coupled MD-continuum simulations based on domain decomposition and control feedback. The onset of …
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Modeling aperture radiation for RF interference applications
… integral equations (MPIEs). Application of Ewald transform to the computation of Green's function in the cavity yields fast convergence of series summation. Good agreements with a commercial tool, EMC studio, have proved the effectiveness of the proposed approach.</p> <p>The second topic …
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Fast Polarizable Force Field Computation in Biomolecular Simulations
… an efficient implementation of the particle-mesh Ewald method, an accurate and robust predictor based on least squares fitting, and two non-stationary iterative methods whose fast convergence is empowered by a simple preconditioner. Furthermore, with these methods, we show that the self-consistent …
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Molecular dynamics investigation of the long wavelength dielectric response of classical dipolar liquids using Bloch function methods
… wavevector is now q. A demonstration of how the Ewald summation is modified for energy and force calculations necessary for the simulation of these systems is given, explicitly for that of charges and dipoles, and a scheme to derive this for higher multipoles is given. This framework is then …
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Advanced System-Scale and Chip-Scale Interconnection Networks for Ultrascale Systems
… sparse linear algebra, particle mesh ewald, and FFT-based solvers. This thesis presents an introduction to the fit-tree approach for designing network infrastructure that is tailored to application requirements. A fit-tree minimizes the component count of an interconnect without …
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On the formulation and the calculation of the harmonic contributions to the Debye-Waller factor in metals (sodium)
… metallic potential has been obtained by the Ewald procedure. All the restricted multiple whole B r i l l o u i n zone (B.Z.) sums are reduced to single whole B.Z. sums by using the plane wave representation of the delta function. These single whole B.Z. sums are further reduced to the •%?? …
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Challenges for the Democratisation Process in Tanzania. Moving Towards Consolidation 50 years after independence?
Tanzania has been independent in 2011 for 50 years. While most neighbouring states have gone through violent conflicts, Tanzania has managed to implement extensive reforms without armed political conflicts. Hence, Tanzania is an interesting case for Peace and Development research. This thesis …
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Espacio público para todos: using purpose-oriented amenities to enhance childhood development in Mexican public spaces
The issues infested in urban slum communities are many, of which I had no problem indentifying a dilemma specific to my interests in landscape architecture and socially equitable places. However, sustainable solutions specific to these dynamic urban forms and communities are unfamiliar academic …
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