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1. |
Record Nr. |
UNINA9910830036403321 |
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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 |
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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 |
5.1 Trivial Generalizations5.2 Properties of Specific Surfaces; 6 Long |
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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. |
UNINA9910148746703321 |
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Autore |
McEnery Tony <1964-> |
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Titolo |
Corpus linguistics and 17th-century prostitution : computational linguistics and history / / Anthony McEnery and Helen Baker |
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Pubbl/distr/stampa |
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London ; ; New York : , : Bloomsbury Academic, , 2017 |
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ISBN |
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9781474295062 |
1474295061 |
9781472512833 |
1472512839 |
9781472514240 |
1472514246 |
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Descrizione fisica |
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1 online resource (257 pages) |
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Collana |
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Research in corpus and discourse ; ; 3 |
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Disciplina |
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Soggetti |
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Computational linguistics - History |
Corpora (Linguistics) - Data processsing |
English language - Social aspects - England - History - 17th century |
English language - Spoken English |
English language - Usage |
English language - 17th century - History |
Prostitutes in literature |
Prostitution - England - History - Spoken English |
Prostitution - England - History - Usage |
Prostitution - England - History - 17th century |
Sociolinguistics - England |
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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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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Introduction -- Life as a seventeenth-century prostitute -- Popular attitudes towards prostitutes -- Looking at words -- Strumpets and whores -- Whores, harlots, jilts and prostitutes -- Looking back, looking forwards. |
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Sommario/riassunto |
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"Corpus linguistics has much to offer history, being as both disciplines engage so heavily in analysis of large amounts of textual material. This |
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book demonstrates the opportunities for exploring corpus linguistics as a method in historiography and the humanities and social sciences more generally. Focussing on the topic of prostitution in 17th-century England, it shows how corpus methods can assist in social research, and can be used to deepen our understanding and comprehension. McEnery and Baker draw principally on two sources - the newsbook Mercurius Fumigosis and the Early English Books Online Corpus. This scholarship on prostitution and the sex trade offers insight into the social position of women in history."--Bloomsbury Publishing. |
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3. |
Record Nr. |
UNICAMPANIAVAN00086390 |
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Autore |
Miranda, Carlo |
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Titolo |
1 / Carlo Miranda ; a cura dell'Unione matematica italiana e con il contributo del Consiglio nazionale delle ricerche |
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Pubbl/distr/stampa |
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Firenze, : Cremonese, 1992 |
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Edizione |
[Rist. anast] |
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Descrizione fisica |
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Soggetti |
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01A75 - Collected or selected works; reprintings or translations of classics [MSC 2020] |
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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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