Transmission Line Matrix Tlm Techniques For Diffusion Applications
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Transmission Line Matrix Tlm Techniques For Diffusion Applications
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Author : Donard deCogan
language : en
Publisher: Routledge
Release Date : 2018-12-12
Transmission Line Matrix Tlm Techniques For Diffusion Applications written by Donard deCogan and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-12 with Technology & Engineering categories.
Transmission Line Matrix (TLM) is a numerical technique which is based upon establishing an analogue between a space and time dependent physical problem and an electrical network which includes transmission lines. By their very nature these enforce time discretization on the network which can then be solved explicitly in the time-domain. Although it is best known in electromagnetic applications, TLM can also be used to model diffusion phenomena, and this book outlines the state of the art in this area. The first part of the book deals with theory and techniques. The second part is devoted to the development of algorithms for specific applications. This is arranged as a historical sequence starting with heat-flow and matter diffusion. The remainder of the book outlines many of the ingenious exploitations of the unique properties of TLM, including topics such as the solution of convection, Poisson, Laplace, and time-dependent Schrodinger equations. Applications in the firing of ceramics, chromatography, image processing, and the solution of inverse thermal problems are also covered.
Transmission Line Matrix Tlm Techniques For Diffusion Applications
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Author : Donard deCogan
language : en
Publisher: Routledge
Release Date : 2018-12-12
Transmission Line Matrix Tlm Techniques For Diffusion Applications written by Donard deCogan and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-12 with Mathematics categories.
Transmission Line Matrix (TLM) is a numerical technique which is based upon establishing an analogue between a space and time dependent physical problem and an electrical network which includes transmission lines. By their very nature these enforce time discretization on the network which can then be solved explicitly in the time-domain. Although it is best known in electromagnetic applications, TLM can also be used to model diffusion phenomena, and this book outlines the state of the art in this area. The first part of the book deals with theory and techniques. The second part is devoted to the development of algorithms for specific applications. This is arranged as a historical sequence starting with heat-flow and matter diffusion. The remainder of the book outlines many of the ingenious exploitations of the unique properties of TLM, including topics such as the solution of convection, Poisson, Laplace, and time-dependent Schrodinger equations. Applications in the firing of ceramics, chromatography, image processing, and the solution of inverse thermal problems are also covered.
The Transmission Line Modeling Tlm Method In Electromagnetics
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Author : Christos Christopoulos
language : en
Publisher: Morgan & Claypool Publishers
Release Date : 2006-12-01
The Transmission Line Modeling Tlm Method In Electromagnetics written by Christos Christopoulos and has been published by Morgan & Claypool Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-12-01 with Technology & Engineering categories.
This book presents the topic in electromagnetics known as Transmission-Line Modeling or Matrix method-TLM. While it is written for engineering students at graduate and advanced undergraduate levels, it is also highly suitable for specialists in computational electromagnetics working in industry, who wish to become familiar with the topic. The main method of implementation of TLM is via the time-domain differential equations, however, this can also be via the frequency-domain differential equations. The emphasis in this book is on the time-domain TLM. Physical concepts are emphasized here before embarking onto mathematical development in order to provide simple, straightforward suggestions for the development of models that can then be readily programmed for further computations. Sections with strong mathematical flavors have been included where there are clear methodological advantages forming the basis for developing practical modeling tools. The book can be read at different depths depending on the background of the reader, and can be consulted as and when the need arises.
Transmission Line Matrix Tlm In Computational Mechanics
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Author : Donard de Cogan
language : en
Publisher: CRC Press
Release Date : 2005-11-01
Transmission Line Matrix Tlm In Computational Mechanics written by Donard de Cogan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-11-01 with Science categories.
The finite element method reigns as the dominant technique for modeling mechanical systems. Originally developed to model electromagnetic systems, the Transmission Line Matrix (TLM) method proves to match, and in some cases exceed, the effectiveness of finite elements for modeling several types of physical systems. Transmission Line Matrix in Compu
Electromagnetic Analysis Using Transmission Line Variables 2nd Edition
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Author : Maurice Weiner
language : en
Publisher: World Scientific
Release Date : 2010-08-31
Electromagnetic Analysis Using Transmission Line Variables 2nd Edition written by Maurice Weiner and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-08-31 with Science categories.
This book employs a relatively new method for solving electromagnetic problems, one which makes use of a transmission line matrix (TLM). The propagation space is imagined to be filled with this matrix. The propagating fields and physical properties are then mapped onto the matrix. Mathematically, the procedures are identical with the traditional numerical methods; however, the interpretation and physical appeal of the transmission line matrix are far superior. Any change in the matrix has an immediate physical significance. What is also very important is that the matrix becomes a launching pad for many improvements in the analysis, using more modern notions of electromagnetic waves. Eventually, the purely mathematical techniques will probably give way to the transmission line matrix method.Major revisions occur in chapters IV and VII in this second edition. The revised chapters now present an up-to-date and concise treatment on plane wave correlations and decorrelations, and provide a revised formulation of simulation to solve transient electromagnetic problems. It also takes into account semiconductors with arbitrary dielectric constant, using much smaller cell size, and extending the range of applicability and improving accuracy.
Electromagnetic Analysis Using Transmission Line Variables
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Author : Maurice Weiner
language : en
Publisher: World Scientific
Release Date : 2001-03-02
Electromagnetic Analysis Using Transmission Line Variables written by Maurice Weiner and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-03-02 with Science categories.
New Edition: Electromagnetic Analysis Using Transmission Line Variables (3rd Edition)Problems in electromagnetic propagation, especially those with complex geometries, have traditionally been solved using numerical methods, such as the method of finite differences. Unfortunately the mathematical methods suffer from a lack of physical appeal. The researcher or designer often loses sight of the physics underlying the problem, and changes in the mathematical formulation are often not identifiable with any physical change.This book employs a relatively new method for solving electromagnetic problems, one which makes use of a transmission line matrix (TLM). The propagation space is imagined to be filled with this matrix. The propagating fields and physical properties (for example, the presence of conductivity) are then mapped onto the matrix. Mathematically, the procedures are identical with the traditional numerical methods; however, the interpretation and physical appeal of the transmission line matrix are far superior. Any change in the matrix has an immediate physical significance. What is also very important is that the matrix becomes a launching pad for many improvements in the analysis (for example, the nature of coherent waves) using more modern notions of electromagnetic waves. Eventually, the purely mathematical techniques will probably give way to the transmission line matrix method.
Electromagnetic Analysis Using Transmission Line Variables Third Edition
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Author : Weiner Maurice
language : en
Publisher: World Scientific
Release Date : 2017-12-27
Electromagnetic Analysis Using Transmission Line Variables Third Edition written by Weiner Maurice and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-27 with Science categories.
This latest edition continues the evolution toward the ultimate realization of a new technique for solving electromagnetic propagation problems. The technique combines the classical and intuitive use of a transmission line matrix (TLM) while striving for consistency with the guideposts demanded by quantum mechanics and the essential structure of electromagnetic theory. The matrix then becomes a useful vehicle for examining both coherent and noncoherent electromagnetic waves. The goal is a mathematical tool capable of solving problems related to the propagation of transient, high-speed, complex waveforms containing both symmetric and plane wave components. For such waveforms, standard classical electromagnetic theory is unable to provide a truly accurate solution since it does not properly account for the correlations among the various TLM cells. The correlations among neighboring TLM cells allow the cell waves to sense one another and to collectively participate as a coherent wave. For arbitrary signals, e.g., complex, high speed, highly non-uniform signals, the correlation model must be placed on a firmer footing to insure the proper correlation strength based on the close adherence to quantum mechanical principles. The purpose of the Third Edition is to thereby improve the correlation model, and incorporate the model into the simulations. The simulation results thus obtained show great promise in describing the full range of electromagnetic phenomena. Wave divergence and diffraction simulations, employing both composite and shorter range correlation models, have been incorporated. The models employ correlation coefficients which may be linked with quantum mechanical parameters, thus providing a deeper understanding of coherent wave fronts. Contents: Introduction to Transmission Lines and Their Application to Electromagnetic PhenomenaNotation and Mapping of Physical PropertiesScattering EquationsCorrections for Plane Wave and Grid Anisotropy EffectsBoundary Conditions and DispersionCell Discharge Properties and Integration of Transport Phenomena into the Transmission Line MatrixDescription of TLM Iteration (includes Correlation/Decorrelation Effects)SPICE Solutions Readership: Graduate students and researchers in applied physics and electrical engineering. Keywords: Transmission Line Matrix;Electromagnetics;Plane Waves;Wave Correlations;Light Activated Semiconductor;Picosecond Electromagnetic SignalsReview: Key Features: Unique approach offering the potential for more accurate solutions compared to the standard approaches, especially in the treatment of fast risetime (picosecond) devices and transmitters, that may eventually supplant present standard electromagnetic methods, which have limited validity for very fast phenomenaEmploys the TLM method, that is very intuitive and physically appealing; thus providing a convenient means for incorporating correlation/decorrelation effects, which are relatable to quantum mechanical parametersLists the Program Statements giving the reader a "hands-on" approach to the simulations, which will encourage readers to observe the effects of their own changes in the program
The Transmission Line Matrix Tlm Method And Its Boundary Treatments
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Author : Zhizhang Chen
language : en
Publisher:
Release Date : 1992
The Transmission Line Matrix Tlm Method And Its Boundary Treatments written by Zhizhang Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Finite differences categories.
Wave And Scattering Methods For Numerical Simulation
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Author : Stefan Bilbao
language : en
Publisher: John Wiley & Sons
Release Date : 2004-10-22
Wave And Scattering Methods For Numerical Simulation written by Stefan Bilbao and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-10-22 with Science categories.
Scattering-based numerical methods are increasingly applied to the numerical simulation of distributed time-dependent physical systems. These methods, which possess excellent stability and stability verification properties, have appeared in various guises as the transmission line matrix (TLM) method, multidimensional wave digital (MDWD) filtering and digital waveguide (DWN) methods. This text provides a unified framework for all of these techniques and addresses the question of how they are related to more standard numerical simulation techniques. Covering circuit/scattering models in electromagnetics, transmission line modelling, elastic dynamics, as well as time-varying and nonlinear systems, this book highlights the general applicability of this technique across a variety of disciplines, as well as the inter-relationships between simulation techniques and digital filter design. provides a comprehensive overview of scattering-based numerical integration methods. reviews the basics of classical electrical network theory, wave digital filters, and digital waveguide networks. discusses applications for time-varying and nonlinear systems. includes an extensive bibliography containing over 250 references. Mixing theory and application with numerical simulation results, this book will be suitable for both experts and readers with a limited background in signal processing and numerical techniques.
Application Of Infrared To Biomedical Sciences
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Author : Eddie YK Ng
language : en
Publisher: Springer
Release Date : 2017-03-23
Application Of Infrared To Biomedical Sciences written by Eddie YK Ng and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-23 with Technology & Engineering categories.
The book covers the latest updates in the application of infrared to biomedical sciences, a non-invasive, contactless, safe and easy approach imaging of skin and tissue temperatures. Its diagnostic procedure allows practitioners to identify the locations of abnormal chemical and blood vessel activity such as angiogenesis in body tissue. Its non-invasive approach works by applying the technology of the infrared camera and state-of-the-art software, where high-resolution digital infrared imaging technology benefits highly from enhanced image production, standardized image interpretation protocols, computerized comparison and storage, and sophisticated image enhancement and analysis. The book contains contributions from global prominent scientists in the area of infrared applications in biomedical studies. The target audience includes academics, practitioners, clinicians and students working in the area of infrared imaging in biomedicine.