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 13010 for “"Numerical"”.
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Generalized Numerical Semigroups
… thought as a straightforward generalization of numerical semigroups, are considered for the first time in a recent work of G. Failla, C. Peterson and R.Utano. Such monoids are called there \emph{generalized numerical semigroups}, and that work may represent the beginning of a systematic study on …
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Comparative Studies of Numerical Cognition in Nonhuman Primates: From Numerical Comparison to Arithmetic
… field has been on providing existence proofs of numerical competence in wide-ranging taxa or using individual species as models for comparisons with humans. Recent findings in numerical cognition have suggested that evidence for approximate numerical abilities in nonhuman species may indicate …
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Numerical Solutions of Nonlinear Free-Surface Wave Problems (Numerical Analysis, Filtering, Artificial Viscosity)
A numerical method was developed for solving potential flows for nonlinear free-surface wave problems with a fixed, small computational domain. The free-surface wave problem is solved as an initial value problem. The method of solving the free-surface wave problem couples the solution of the …
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Numerical Modelling of Plasmonic Waveguides
… there is an urgent need to have an accurate numerical model for plasmonic structures.<br/><br/>Numerical simulations play an important role for the design and modeling of plasmonics. In this thesis, the conventional full vectorial finite difference method (FVFDM) and a nine node based full …
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Numerical representations of fluid mixing
The work contained within this thesis is concerned with a theoretical investigatiop of both laminar and thermally driven types of cavity flow, together with an analysis of their associated mixing processes which find applications to Industrial mixing and also to the environment. The mixing …
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Interfaces in Numerical Relativistic hydrodynamics
This thesis investigates numerical techniques for modelling sharp interfaces<br/>between relativistic fluids. The motivation for this work lies in obtaining accurate<br/>models of neutron star interiors for use in multidimensional simulations<br/>in general relativity. The interior structure of a …
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Numerical techniques for computational aeroacoustics
… Aeroacoustics approach which is based on direct numerical simulation of the sound field. In the region of sound generation, the unsteady airflow is computed separately from the sound using Computational Fluid Dynamics (CFD) codes. Overlapping this region and extending further away is the acoustic …
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Numerical Analysis of Flux Reconstruction
… that are used to understand the behaviour of numerical methods – particularly related to their real-world application to industrial problems. The thesis begins by challenging some of the existing dogma surrounding computational fluid dynamics by evaluating the performance of high-order flux …
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Geometric numerical integration for optimisation
In this thesis, we study geometric numerical integration for the optimisation of various classes of functionals. Numerical integration and the study of systems of differential equations have received increased attention within the optimisation community in the last decade, as a means for devising …
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Some numerical investigations in cosmology
Numerical simulations have become an indispensable tool for understanding the complex non-linear behavior of many physical systems. Here we present two numerical investigations in cosmology. The first is posed in the context of inhomogeneous solutions to General Relativity. We lay out formalism for …
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Numerical modeling of suspension flows
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1999.
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Numerical prediction of hurricane movement
Massachusetts Institute of Technology. Dept. of Meteorology. Thesis. 1967. M.S.
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A numerical study of frontogenesis.
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1973.
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Numerical analysis of consolidation problems
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Sanitary Engineering, 1953.
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Themes in numerical tensor calculus
… several distinct, but related, aspects of numerical tensor calculus. First, we introduce a simple, black-box compression format for tensors with a multiscale structure. By representing the tensor as a sum of compressed tensors defined on increasingly coarse grids, the format captures …
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Snowflake aggregation--a numerical model,
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1968.
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Numerical modeling of wetland hydrodynamics
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1999.
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