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1. |
Record Nr. |
UNINA9910144829403321 |
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Autore |
Kat͡senelenbaum B. Z (Boris Zakharovich) |
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Titolo |
Electromagnetic fields [[electronic resource] ] : restrictions and approximation / / Boris Z. Katsenelenbaum |
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Pubbl/distr/stampa |
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Weinheim, : Wiley-VCH, c2003 |
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ISBN |
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1-282-37228-9 |
9786612372285 |
3-527-60256-9 |
3-527-62208-X |
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Descrizione fisica |
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1 online resource (238 p.) |
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Disciplina |
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Soggetti |
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Electromagnetic fields - Measurement |
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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Electromagnetic Fields - Restrictions and Approximation; Preface; Contents; 1 Introduction; 1.1 Introduction; 1.2 Subject and Method of Investigation; 1.3 Realizability, Approximability, Amplitude Approximability; 1.4 Outline of the Book; 2 Nonapproximability of Patterns; 2.1 Nonapproximability and Zero Lines of the Real Wave Field; 2.2 Examples of Specific Lines. "Prohibited" Antenna Shapes; 2.3 Amplitude Nonapproximability; 2.4 Probabilistic Description of Body Shape by the Likeness Principle; 2.5 Body Shape Reconstruction by its Scattered Patterns; 2.6 Properties of Specific Lines |
3 Nonapproximability of Near Fields3.1 Approximability Condition for Near Fields; 3.2 Construction of a Field by its Zero Line. Case of the Circle Arc; 3.3 Analytical Extension of the Eigenoscillation Field outside the Boundary of the Domain; 4 The Norm of the Current; 4.1 The Minimal Current Norm at a Given Accuracy of Approximation; 4.2 Generalized Functions of Double Orthogonality. Nonapproximability and Existence of Nonradiating Currents; 4.3 Optimal Current Synthesis. The General Case; 4.4 Domain of Specific Line Influence; 5 Electromagnetic Field. The Maxwell Equations |
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5.1 Trivial Generalizations5.2 Properties of Specific Surfaces; 6 Long Narrow Beam of Electromagnetic Waves; 6.1 Two-dimensional Fourier Transformation; 6.2 Transmission of Field by Wave Beam: Possibilities and Restrictions; 6.3 Shape of Antenna and Rectenna; Bibliography for Chapters 1-6; Appendix Antenna Synthesis by Amplitude Radiation Pattern and Modified Phase Problem (by N. N. Voitovich); A.1 Synthesis of Antennas by Amplitude Radiation Pattern; A.1.1 Introduction; A.1.2 Problem formulation for the curvilinear antenna; A.1.3 Reducing to the Lagrange-Euler equation |
A.1.4 Case of linear antenna. Main properties of solutionsA.2 Modified Phase Problem. Continuous Case; A.2.1 Modified phase problem and related mathematical and physical problems; A.2.2 Analytical solutions to the Lagrange-Euler equation for linear antenna. Theoretical results; A.2.3 Solution branching; A.2.4 Numerical example. Problem with symmetrical data; A.2.5 Problems with nonsymmetrical data; A.3 Modified Phase Problem. Discrete Case; A.3.1 Problem formulation for linear antenna array. Lagrange-Euler equations; A.3.2 Theoretical results; A.3.3 Numerical results |
Bibliography for AppendixIndex |
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Sommario/riassunto |
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The fields scattered by metallic bodies or radiated by some types of antennas are created by the surfaces currents and therefore they are subject to some restrictions. The book is the first one where the properties of these fields are investigated in details. The properties have the important significance for the antenna synthesis, body shape reconstruction and other diffraction problems. The material of the book lies in the meetingpoint of the antenna theory, highfrequency electrodynamics and inverse scattering problems.The author is an internationally renowned investigator in the field o |
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2. |
Record Nr. |
UNINA9910162909203321 |
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Autore |
fr le Petit Litteraire |
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Titolo |
L'Aiguille creuse de Maurice Leblanc (Fiche de lecture) |
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Pubbl/distr/stampa |
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Brussels, : Primento Digital, 2012 |
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ISBN |
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Descrizione fisica |
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1 online resource (28 p.) |
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Altri autori (Persone) |
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Soggetti |
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FICTION / Mystery & Detective / General |
FICTION / Action & Adventure |
FICTION / Classics |
FICTION / Thrillers / Suspense |
LITERARY COLLECTIONS / European / General |
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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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1. Résumé; Chapitre I : le coup de feu; Chapitre II : Isidore Beautrelet, élève de rhétorique; Chapitre III : le cadavre; Chapitre IV : face à face; Chapitre V : sur la piste; Chapitre VI : un secret historique; Chapitre VII : le traité de l'Aiguille; Chapitre VIII : de César à Lupin; Chapitre IX : Sésame, ouvre-toi !; Chapitre X : le trésor des rois de France; 2. étude des personnages; Isidore Beautrelet; Arsène Lupin; Raymonde de Saint-Véran; 3. Clés de lecture; Un récit multiple : la trace du roman feuilleton; Le problème de la vraisemblance; Arsène Lupin : un nouveau type de héros |
4. Pistes de réflexion5. Informations complémentaires |
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Sommario/riassunto |
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Tout ce qu'il faut savoir sur L'Aiguille creuse de Maurice Leblanc ! Retrouvez l'essentiel de l'œuvre dans une fiche de lecture complète et détaillée, avec un résumé, une étude des personnages, des clés de lecture et des pistes de réflexion. Rédigée de manière claire et accessible, la fiche de lecture propose d'abord un résumé chapitre par chapitre du roman, puis s'intéresse tout particulièrement au personnage d'Arsène Lupin, incontournable de la littérature policière. On étudie ensuite notamment les caractéristiques du roman feuilleton, avant d'aborder la question de la vraisemblance. Enfin, |
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