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1. |
Record Nr. |
UNINA9910456608703321 |
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Autore |
Pelosi Giuseppe |
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Titolo |
Quick finite elements for electromagnetic waves / / Giuseppe Pelosi, Roberto Coccioli |
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Pubbl/distr/stampa |
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Boston : , : Artech House, , ©2009 |
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[Piscataqay, New Jersey] : , : IEEE Xplore, , [2009] |
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ISBN |
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Edizione |
[2nd ed.] |
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Descrizione fisica |
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1 online resource (310 p.) |
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Collana |
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Artech House electromagnetic analysis series |
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Altri autori (Persone) |
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CoccioliRoberto |
SelleriStefano |
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Disciplina |
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Soggetti |
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Electrical engineering |
Electromagnetic waves - Technique |
Finite element method - Data processing |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Quick Finite Elements for Electromagnetic Waves Second Edition; Contents; Preface; Preface to the First Edition; How to Use Quick FEM; PART I Two Dimensions; Chapter 1 Getting Started: ShieldedMicrostrip Lines; 1.1 First Step: Preprocessing; 1.2 Second Step: Building Element Matrices; 1.3 Third Step: Assembling the Global Matrix; 1.4 Fourth Step: Minimizing the Functional; 1.5 Fifth Step: Postprocessing; 1.6 Variational or Projective?; References; Chapter 2 Tools; 2.1 Preprocessing; 2.1.1 Input Geometry Description File; 2.1.2 Output Mesh Description File; 2.1.3 Mesh Regularization |
2.1.4 Numbering Optimization2.2 Element Matrices; 2.2.1 Nodal Elements; 2.2.2 Vector Elements; 2.3 Global Matrices; 2.3.1 The Band Storage Mode; 2.3.2 The Sparse Storage Mode; 2.4 Solving the Entire Problem; 2.5 Postprocessing; 2.6 The Matlab Framework; 2.6.1 Using the Interface; 2.6.2 The Data Framework; 2.6.3 How to Code Yourself; 2.7 Disc Description and Installation; 2.7.1 FORTRAN Framework; 2.7.2 Matlab Framework; References; Chapter 3 Microwave Guiding Structures:Characterization; 3.1 Homogeneous Waveguides; 3.2 Inhomogeneous Waveguides; 3.3 Inhomogeneous Waveguides: |
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Formulation |
3.4 Numerical Implementation3.5 The Code WG: Waveguides; 3.6 Some Examples; 3.7 Disc Content; 3.7.1 FORTRAN; 3.7.2 Matlab; References; Chapter 4 Microwave Guiding Structures:Devices and Circuits; 4.1 The Finite Element----Modal Expansion Formulation: H-Plane Case; 4.2 The Finite Element----Modal Expansion Formulation: E-Plane Case; 4.3 Implementation; 4.4 The Code EHDEV; 4.5 Some Examples; 4.6 Disc Content; 4.6.1 FORTRAN; 4.6.2 MATLAB; References; Chapter 5 Scattering and Antennas:Hybrid Methods; 5.1 Scattering by a Periodic Structure: Formulation; 5.2 Numerical Implementation |
5.3 The Code GRATING5.4 Some Examples; 5.5 Disc Content; 5.5.1 FORTRAN; 5.5.2 Matlab; References; Chapter 6 Scattering and Antennas:Absorbing Boundary Conditions; 6.1 Analytic ABC; 6.2 Scattering Problems: Formulation with Analytic ABC; 6.3 Analytic ABC: Implementation; 6.4 The Concept of Perfectly Matched Anisotropic Absorber; 6.5 Antenna Problems: Formulation Using PMA; 6.6 PMA Implementation; 6.7 The Code CYL; 6.8 Code CYL: Some Examples; 6.9 The Code OWG; 6.10 Code OWG: Some Examples; 6.11 Disc Content; 6.11.1 FORTRAN; 6.11.2 Matlab; References; PART II Three Dimensions |
Chapter 7 Finite Elements in Three Dimensions7.1 Preprocessing; 7.1.1 Input Geometry Description File; 7.1.2 Output Mesh Description File; 7.2 Element Matrices; 7.2.1 Nodal Elements; 7.2.2 Vector Elements; 7.3 Global Matrices; 7.4 Solving the Linear System of Equations; 7.5 Disc Content; 7.5.1 3D-PART II; References; Chapter 8 Resonant Cavities; 8.1 Formulation of the Three-Dimensional Eigenvalue Problem; 8.2 Numerical Implementation; 8.3 The Code Cavity; 8.4 Code Cavity: Some Examples; 8.5 Disc Content; References; Chapter 9 Waveguide Devices; 9.1 Opening the Cavity: Formulation |
9.2 Numerical Implementation |
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Sommario/riassunto |
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The classic 1998 Artech House book, Quick Finite Elements for Electromagnetic Waves, has now been revised and expanded to bring you up-to-date with the latest developments in the Field. You find brand new discussions on finite elements in 3D, 3D resonant cavities, and 3D waveguide devices. Moreover, the second edition supplies you with MATLAB code, making this resource easier to comprehend and use for your projects in the field. This practical book and accompanying software enables you to quickly and easily work out challenging microwave engineering and high-frequency electromagnetic problems using the finite element method (FEM). Using clear, concise text and dozens of real-world application examples, the book provides a detailed description of FEM implementation, while the software provides the code and tools needed to solve the three major types of EM problems: guided propagation, scattering, and radiation. With this unique book and software set in hand, you can compute the dispersion diagram of arbitrarily shaped inhomogeneous isotropic lossless or lossy guiding structures, analyze E- and H-plane waveguide discontinuities and devices, and understand the reflection from and transmission through simple 2D and 3D inhomogeneous periodic structures. CD-ROM Included! Easy-to-use finite element software contains ready-made MATLAB and FORTRAN source code that you can use immediately to solve a wide range of microwave and EM problems. The package is fully compatible with Internet "freeware, " so you can perform advanced engineering functions without having to purchase expensive pre- and post-processing tools. |
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2. |
Record Nr. |
UNINA9910825547203321 |
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Autore |
Fink Johannes Karl |
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Titolo |
A concise introduction to additives for thermoplastic polymers / / Johannes Karl Fink |
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Pubbl/distr/stampa |
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Hoboken, NJ, : Wiley |
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Salem, MA, : Scrivener Pub., c2010 |
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ISBN |
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1-282-68401-9 |
9786612684012 |
0-470-62424-8 |
1-61344-163-0 |
0-470-62423-X |
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Descrizione fisica |
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1 online resource (284 p.) |
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Collana |
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Disciplina |
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Soggetti |
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Polymers - Additives |
Thermoplastics |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di contenuto |
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A Concise Introduction to Additives for Thermoplastic Polymers; Contents; Preface; 1 Introduction; 1.1 Classification; References; 2 Plasticizers; 2.1 Principle of Action; 2.2 Principle of Selection; 2.3 Characterization; 2.4 Risks and Drawbacks; 2.4.1 Leaching; 2.4.2 Inherent Toxicity; 2.5 Classes of Plasticizers; 2.5.1 Phthalate Plasticizers; 2.5.2 Cyclohexanoic Diesters; 2.5.3 Phophate Plasticizers; 2.5.4 Aliphatic Esters; 2.5.5 Polymeric Plasticizers; 2.5.6 Ionic Liquids; 2.6 Specific Examples of Application; 2.6.1 Heat Shrinkable Films; 2.6.2 Adhesive Compositions |
2.6.3 Interlayer Films for Safety Glasses2.6.4 Electrolyte Membranes; 2.6.5 Porous Electrodes; 2.6.6 Biodegradable Polymers; 2.6.7 Plasticizers for Energetic Polymers; References; 3 Fillers; 3.1 Surface Modification; 3.1.1 Siloxanes; 3.1.2 Dispersion and Coupling Additives; 3.2 Special Applications; 3.2.1 Flame Retardant Fillers; 3.2.2 Conductive Fillers; 3.2.3 Solder Precoated Fillers; 3.2.4 Nano Clays; 3.2.5 Mixed Matrix Membranes; References; 4 Colorants; 4.1 Physics |
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Behind a Color; 4.1.1 Human Eye; 4.1.2 Tristimulus Values; 4.1.3 Color Spaces; 4.2 Color Index; 4.3 Test Standards |
4.4 Pigments4.5 Organic Colorants; References; 5 Optical Brighterners; 5.1 Basic Principles; 5.2 Measurement; 5.3 Inorganic Brighteners; 5.4 Organic Optical Brighteners; 5.4.1 Reactive Optical Brighteners; 5.4.2 Melt Extrusion; 5.4.3 Photographic Supports; References; 6 Antimicrobial Additives; 6.1 Modes of Action; 6.1.1 Types of Irritations; 6.2 Plasticizers; 6.3 Special Formulations; 6.3.1 Contact Lenses; 6.3.2 Food Packaging; 6.3.3 Polymers with Inherent Antimicrobial Properties; References; 7 Flame Retardants; 7.1 Mechanisms of Flame Retardants; 7.1.1 Flame Cooling of Halogens |
7.2 Smoke Suppressants7.3 Admixed Additives; 7.4 Bonded Additives; 7.4.1 Examples of Polymers; References; 8 Lubricants; 8.1 Principle of Action; 8.2 Methods of Incorporation; 8.2.1 Conventional Method; 8.2.2 Separate Delivery of the Lubricant; 8.3 Types of Lubricants; 8.3.1 Alcohols; 8.3.2 Fatty Acids, Esters and Amides; 8.3.3 Waxes; 8.3.4 Polymeric Lubricants; 8.4 Special Applications; 8.4.1 PVC; 8.4.2 Chlorinated PVC; 8.4.3 Electically Conductive Polymers; References; 9 Antistatic Additives; 9.1 Types of Additives; 9.2 Areas of Application; 9.3 Additives in Detail |
9.3.1 Conventional Additives9.3.2 Polymeric Additives; 9.3.3 External Antistatic Additives; 9.3.4 Intrinsically Antistatic Compositions; 9.3.5 Conductive Fillers; References; 10 Slip Agents; 10.1 Basic Principles of Action; 10.2 Compounds; 10.3 Special Formulations; 10.3.1 Poly(ethylene terephthalate); 10.3.2 Formulations for Poly(ethylene); References; 11 Surface Improvers; 11.1 Additives; 11.1.1 Fluorocarbon Compounds; 11.1.2 Acrylics; 11.1.3 Modified Pigments; 11.1.4 Organic Salts; References; 12 Nucleating Agents; 12.1 Crystalline Polymers; 12.1.1 Crystal Structures |
12.1.2 Modification of Properties by Crystallinity |
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Sommario/riassunto |
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Describes twenty-one of the most important and commonly used additives A Concise Introduction to Additives for Thermoplastic Polymers focuses on additives for thermoplastic polymers and describes 21 of the most important and commonly used additives from Plasticizers and Fillers to Optical Brighteners and Anti-Microbial additives. It also includes chapters on safety and hazards, and prediction of service time models. While there are many exhaustive and complex books dealing with additives for polymers, the size of them deter students and many industry engineers from using them |
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