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BOOK EXCERPT:
We study the stability properties of, and the phase error present in, a nite element scheme for Maxwell's equations coupled with Debye or Lorentz polarization. In one dimension we consider a second order formulation for the electric eld with an ordinary di erential equation for the polarization added as an auxiliary constraint. The nite element method uses linear nite elements in space for the electric eld as well as the polarization, and a theta scheme for the time discretization. Numerical experiments suggest the method is unconditionally stable for both Debye and Lorentz models. We compare the stability and phase error properties of the method presented here with those of nite di erence methods that have been analyzed in the literature. We also conduct numerical simulations that verify the stability and dispersion properties of the scheme.
Product Details :
Genre |
: |
Author |
: |
Publisher |
: |
Release |
: 2006 |
File |
: 74 Pages |
ISBN-13 |
: OCLC:227901689 |
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BOOK EXCERPT:
The special volume offers a global guide to new concepts and approaches concerning the following topics: reduced basis methods, proper orthogonal decomposition, proper generalized decomposition, approximation theory related to model reduction, learning theory and compressed sensing, stochastic and high-dimensional problems, system-theoretic methods, nonlinear model reduction, reduction of coupled problems/multiphysics, optimization and optimal control, state estimation and control, reduced order models and domain decomposition methods, Krylov-subspace and interpolatory methods, and applications to real industrial and complex problems. The book represents the state of the art in the development of reduced order methods. It contains contributions from internationally respected experts, guaranteeing a wide range of expertise and topics. Further, it reflects an important effor t, carried out over the last 12 years, to build a growing research community in this field. Though not a textbook, some of the chapters can be used as reference materials or lecture notes for classes and tutorials (doctoral schools, master classes).
Product Details :
Genre |
: Mathematics |
Author |
: Peter Benner |
Publisher |
: Springer |
Release |
: 2017-09-05 |
File |
: 503 Pages |
ISBN-13 |
: 9783319587868 |
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BOOK EXCERPT:
This book is a self-contained, programming-oriented and learner-centered book on finite element method (FEM), with special emphasis given to developing MATLAB® programs for numerical modeling of electromagnetic boundary value problems. It provides a deep understanding and intuition of FEM programming by means of step-by-step MATLAB® programs with detailed descriptions, and eventually enabling the readers to modify, adapt and apply the provided programs and formulations to develop FEM codes for similar problems through various exercises. It starts with simple one-dimensional static and time-harmonic problems and extends the developed theory to more complex two- or three-dimensional problems. It supplies sufficient theoretical background on the topic, and it thoroughly covers all phases (pre-processing, main body and post-processing) in FEM. FEM formulations are obtained for boundary value problems governed by a partial differential equation that is expressed in terms of a generic unknown function, and then, these formulations are specialized to various electromagnetic applications together with a post-processing phase. Since the method is mostly described in a general context, readers from other disciplines can also use this book and easily adapt the provided codes to their engineering problems. After forming a solid background on the fundamentals of FEM by means of canonical problems, readers are guided to more advanced applications of FEM in electromagnetics through a survey chapter at the end of the book. Offers a self-contained and easy-to-understand introduction to the theory and programming of finite element method. Covers various applications in the field of static and time-harmonic electromagnetics. Includes one-, two- and three-dimensional finite element codes in MATLAB®. Enables readers to develop finite element programming skills through various MATLAB® codes and exercises. Promotes self-directed learning skills and provides an effective instruction tool.
Product Details :
Genre |
: Technology & Engineering |
Author |
: Özlem Özgün |
Publisher |
: CRC Press |
Release |
: 2018-09-03 |
File |
: 428 Pages |
ISBN-13 |
: 9780429854606 |
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BOOK EXCERPT:
We report progress on the development of methods in a number of specific areas of application including static, non-cooperative games related to counter- and counter-counter-electromagnetic interrogation of targets, modeling of complex viscoelastic polymeric materials, stochastic and deterministic models for complex networks and development of inverse problem methodologies (generalized sensitivity functions; asymptotic standard errors) for estimation of infinite dimensional functional parameters including probability measures and temporal/spatial dependent functions in complex nonlinear dynamical systems. These efforts are part of our fundamental research in a modeling, estimation and control methodology (theoretical, statistical and computational) for systems in the presence of major model and observation uncertainties.
Product Details :
Genre |
: Inverse problems (Differential equations) |
Author |
: Harvey Thomas Banks |
Publisher |
: |
Release |
: 2007 |
File |
: 42 Pages |
ISBN-13 |
: UOM:39015104953172 |
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BOOK EXCERPT:
Ultra-Wideband Short-Pulse Electromagnetics 6 was held at theAmerican Electromagnetics 2002 conference June 3-7, 2002 at the U.S.Naval Academy in Annapolis, Maryland. Topics include: UWB RadarSystems; UWB Antennas; Scattering; Pulsed Power; Short-PulseMeasurement Techniques; Time-Domain Computation Techniques; Time-Domain Signal Processing; UWB Polarimetry; UWB Sensing ofTerrain; Wavelets & Multi-Resolution Algorithms; Target Detection &Discrimination; Propagation; Underground & Subsurface Propagation; Electromagnetic Theory; New Canonical Problems, Benchmark Solutions; Signal Processing.
Product Details :
Genre |
: Science |
Author |
: Eric L. Mokole |
Publisher |
: Springer Science & Business Media |
Release |
: 2003-12-31 |
File |
: 616 Pages |
ISBN-13 |
: 0306474816 |
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BOOK EXCERPT:
Product Details :
Genre |
: Aeronautics |
Author |
: |
Publisher |
: |
Release |
: 1997 |
File |
: 648 Pages |
ISBN-13 |
: STANFORD:36105021091371 |
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BOOK EXCERPT:
Product Details :
Genre |
: Electrical engineering |
Author |
: |
Publisher |
: |
Release |
: 1997 |
File |
: 2092 Pages |
ISBN-13 |
: OSU:32435059589200 |