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 113 for “"numerical algorithms"”.
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Bifurcations of maps: numerical algorithms and applications
… curves. We implemented new and improved algorithms for the bifurcation analysis of fixed points and periodic orbits of maps in the {\sc Matlab} software package {\sc Cl\_MatcontM}. This includes the numerical continuation of fixed points of iterates of the map with one control parameter, …
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Methods for Automatic Error Analysis of Numerical Algorithms
Made available in DSpace on 2014-12-13T18:02:04Z (GMT). No. of bitstreams: 1 7820985.pdf: 2880327 bytes, checksum: 623ff15722032d9c362b593efc2af240 (MD5) Previous issue date: 1978
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Fast numerical algorithms for optimal robot motion planning
… planning problem. Hence, the application of numerical algorithms is necessary. In this thesis, we demonstrate that solutions to a general motion planning problem are computable, which permits the use of numerical algorithms to solve this problem. Moreover, we propose a numerical …
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A thread-based parallel programming library for numerical algorithms
… parallelization library, intended for use in numerical algorithms. It provides simple multitasking and task synchronization functions. The library hides all internal system calls from the developer and utilizes thread pooling to provide better performance and utilization of system time and …
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Quantitative performance modeling of scientific computations and creating locality in numerical algorithms
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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A comparison of numerical algorithms for solution of the transient stability problem
A comparison is presented of five different numerical algorithms for the solution of the differential equations contained in the transient stability problem. A classical transient stability model is used, including the swing equation to characterize the machine's dynamic behavior. The five …
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Efficient numerical algorithms for surface formulations of mathematical models for biomolecule analysis and design
This thesis presents a set of numerical techniques that extend and improve computational modeling approaches for biomolecule analysis and design. The presented research focuses on surface formulations of modeling problems related to the estimation of the energetic cost to transfer a biomolecule …
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Efficient Numerical Algorithms for Structured Nonsmooth Min–Max and Adjustable Robust Optimization problems with Applications
… Splitting methods are a class of iterative algorithms well-suited to tackling these by exploiting the problem structure to split into subproblems. A particular splitting method is the extrapolated proximal algorithm combining the proximal operator with extrapolation for an efficient, …
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Development of stable operator splitting numerical algorithms for phase-field modeling and surface diffusion applications
Implicit, explicit and spectral algorithms were used to create Allen-Cahn and Cahn-Hilliard phase field models. Individual terms of the conservation equations were approached by different methods using operator splitting techniques found in previous literature. In addition, dewetting of gold films …
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Development of advanced numerical algorithms for kinetic and dynamic simulations of irradiated systems : kinetic Monte Carmelo and dislocation dynamics
Chapter 1 ABSTRACT This thesis can be framed within the Computational Materials Sci¬ence field, and it has been devoted to the development of two new mod¬els concerning two of the most used methods in the Multiscale Modeling Approach, namely, kinetic Monte Carlo (kMC) and Dislocation Dynamics (DD). …
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Efficient Numerical Methods for Initial Value Control Problems for Diffeomorphic Image Registration
We discuss numerical algorithms for diffeomorphic image registration. We present extensions for a framework for diffeomorphic image registration termed CLAIRE. In diffeomorphic image registration, we seek a diffeomorphic map that establishes spatial correspondence between two views (images) of the …
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Software design for simulation driven optimization
… describes a flexible framework for abstract numerical algorithms which treats algorithms as objects and makes them reusable, composable, and modifiable. These algorithm objects are implemented using the Rice Vector Library (RVL) interface, decoupling the algorithmic code from the details of …
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Analysis and algorithms for parametrization, optimization and customization of sled hockey equipment and other dynamical systems
… fundamental investigations of the analysis and algorithms for the study of dynamical systems, by parametrizing, optimizing and customizing. We develop and/or implement numerical algorithms, for solving ODEs/PDEs, and statistical/machine-learning algorithms based on data, for physical inference …
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Following manifolds in equivariant evolution equations
… setting. These results are then implemented in numerical algorithms, and the thesis concludes with experiments that demonstrate how powerful the extension to infinite-dimensional Lie groups can be.
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Nonlinear Growth of Structure in Cosmological Simulations
… importantly, they completely cover the range of numerical algorithms used in cosmological N-body simulations. For the mass function, the matter power spectrum, and halo profiles --- the most important statistics for this thesis --- codes agree at less then 10% over wide dynamic ranges. This …
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Multilevel Methods for the Poisson-Boltzmann Equation
We consider the numerical solution of the Poisson-Boltzmann equation (PBE), a three-dimensional second order nonlinear elliptic partial differential equation arising in biophysics. This problem has several interesting features impacting numerical algorithms, including discontinuous coefficients …
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High-performance computing with PetaBricks and Julia
… use these two languages to re-examine classic numerical algorithms in new approaches for high-performance computing. PetaBricks is an implicitly parallel language that allows programmers to naturally express algorithmic choice explicitly at the language level. The PetaBricks compiler and …
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An apparatus for frequency resolved optical gating of attoseconds pulses
… in the context of the theoretical background, numerical algorithms, and engineering design features of the experimental system. This thesis contains detailed explanations of the various design goals and decisions that are necessary to understand in order to successfully operate the system.
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Theory of Decision Based on Structural Health Monitoring
… monitoring system design. Then, I propose the numerical algorithms for the development of monitoring-based decision support systems and solutions for monitoring data analysis. Finally, the proposed methods are applied to three case studies, which enabled me to discuss the application in real …
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Physics motivated algorithms for partial differential equations
… analytical approaches. Thus, devising efficient numerical algorithms to solve PDEs is important for the study of nonequilibrium systems, and has traditionally been considered a major branch of applied mathematics. A computationally efficient model that captures the crucial physics of a system can …
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