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1. |
Record Nr. |
UNINA9910647394303321 |
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Autore |
Nikhil Kumar C. S. |
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Titolo |
Magnonic Devices : Numerical Modelling and Micromagnetic Simulation Approach / / by C. S. Nikhil Kumar |
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Pubbl/distr/stampa |
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Cham : , : Springer Nature Switzerland : , : Imprint : Springer, , 2023 |
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ISBN |
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9783031226656 |
9783031226649 |
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Edizione |
[1st ed. 2023.] |
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Descrizione fisica |
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1 online resource (89 pages) |
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Collana |
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SpringerBriefs in Materials, , 2192-1105 |
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Disciplina |
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Soggetti |
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Magnetism |
Spintronics |
Nanoelectromechanical systems |
Materials science—Data processing |
Solid state physics |
Nanoscale Devices |
Computational Materials Science |
Electronic Devices |
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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 contenuto |
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Introduction -- Backward Volume Spin Waves in a Rectangular Geometry -- Magnetostatic Waves in Magnonic Crystals: A PWM Approach -- Field Localization in Striped Magnonic Crystal Waveguide -- Walkers Solution for Curved Magnonic Waveguide and Resonant Modes in Magnonic Ring -- Nano-contact Driven Spin Wave Excitations in Magnonic Cavity -- Magnetic Field Feedback Oscillator: A Micromagnetic Study. |
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Sommario/riassunto |
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This book briefly looks at numerical modeling and micromagnetic simulation results of magnonic crystals, which are periodically modulated magnonic devices regarded as the magnetic counterpart of photonic crystals with spin waves acting as the information carrier. Since the wavelength of the spin wave is several orders of magnitude shorter than that of electromagnetic waves of the same frequency, |
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magnonic crystals are promising candidates for miniaturization, especially in the fields of data storage and processing. The book begins by describing the dispersion relation of dipolar spin waves in a magnonic curved waveguide, solving Walker's equation in cylindrical coordinates, and then calculating the dispersion of exchange spin waves using perturbation theory. It describes simulated nano-contact-driven spin wave excitations in a magnonic cavity, featuring a design of an antidot magnonic crystal around the nano-contact, with the frequency of the spin wave mode generated lying within the band gap of the magnonic crystal. The proposed device behaves as a SWASER—Spin Wave Amplification by the Stimulated Emission of Radiation. This book will find interest among researchers and practitioners interested in the modeling, simulation, and design of novel magnonic devices. |
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2. |
Record Nr. |
UNINA9910265138703321 |
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Autore |
Marg Stine <p>Stine Marg, Institut für Demokratieforschung Göttingen, Deutschland </p> |
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Titolo |
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Mitte in Deutschland : Zur Vermessung eines politischen Ortes / Stine Marg |
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Pubbl/distr/stampa |
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Bielefeld, : transcript Verlag, 2014 |
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ISBN |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (295 p.) |
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Collana |
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Studien des Göttinger Instituts für Demokratieforschung zur Geschichte politischer und gesellschaftlicher Kontroversen |
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Classificazione |
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Disciplina |
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Soggetti |
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Politische Mitte |
Middle Class |
Mittelschicht |
Focus Group |
Fokusgruppe |
Empirical Social Research |
Empirische Sozialforschung |
Politics |
Politische Kulturforschung |
Society |
Politik |
Political Sociology |
Gesellschaft |
Political Parties |
Politische Soziologie |
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Lifestyle |
Politische Parteien |
Political Science |
Lebensstil |
Politikwissenschaft |
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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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The »Middle« - a shiny sociopolitical term is grounded in this volume. For the first time, the relationship between the middle of society and of politics is made the subject of systematically and methodically well-founded research - with surprising findings. |
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Nota di bibliografia |
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Includes bibliographical references. |
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Nota di contenuto |
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1 Inhalt 5 1. Einleitung 11 2. Was ist eigentlich "Mitte"? Die Annäherungen der Gesellschaftswissenschaften 32 3. Methodische Überlegungen zur Erschließung der sozialen "Mitte" 68 4. Die Fokusgruppe in der praktischen Forschung 91 5. Die Analyse des in den Fokusgruppen produzierten Materials 145 6. Von Adaptions- und Bewältigungsstrategien: Der Versuch einer Typenbildung 244 7. Zusammenfassung und Schlussfolgerung 251 8. Dank 263 9. Tabellen- und Abbildungsverzeichnis 265 10. Literaturverzeichnis 267 |
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Sommario/riassunto |
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Was ist die Mitte der Gesellschaft und was erwartet sie von der Zukunft? Wie bewertet sie Politik im Allgemeinen sowie Politiker, politische Prozesse und Entscheidungen im Besonderen? Anhand welcher Maßstäbe fällt sie ihre Urteile?Auf Basis einer umfangreichen qualitativen Erhebung wird die soziale Mitte in dieser Studie erstmals systematisch analysiert. Stine Marg erörtert nicht nur die Fokusgruppe als Methode der Sozialwissenschaft, sondern präsentiert ebenso überraschende Erkenntnisse über die Wertvorstellungen und Erwartungen »der Mitte«. |
Besprochen in:Portal für Politikwissenschaft, 23.10.2014, Matthias Lemke |
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