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Data from spacecraft such as Pioneer, Vela and Voyager have revealed the interstellar medium to be a remarkable physical system, which has served as a laboratory for the study of turbulent, supersonic, ideal magnetohydrodynamic (MHD) flows. The results of these studies provided confirmation of many theoretical models of the interstellar medium.
Interstellar matter. --- Magnetohydrodynamics. --- Magneto-hydrodynamics --- MHD (Physics) --- Fluid dynamics --- Plasma dynamics --- Interstellar medium --- Astrophysics --- Matter --- Space environment --- Interstellar reddening --- Interstellar matter --- Magnetohydrodynamics --- Matière interstellaire --- Magnétohydrodynamique
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This book reviews and synthesizes recent findings concerning the dynamo effect of beating waves in a turbulent wave field and non-stationary dynamo effect associated with history of evolution of turbulent kinetic and cross helicities. The latter one is based on coexistence of the kinetic and cross helicities in plasma turbulence. Moreover, the physical picture of the non-equilibrium dynamo effect brings in a possible natural interpretation of the phenomenon of magnetic excursions and reversals in natural systems such as the Earth's core, as described in chapter 3. The most important aim of this book is to explain and emphasize the versatile role of non-equilibrium effects in turbulent hydromagnetic dynamos, hitherto typically neglected.
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This book presents detailed aspects of different fields of molecular spectroscopy. It consists of eleven chapters starting from the Born–Oppenheimer approximation and its relevance to various spectra to some topics on nonlinear spectroscopy through rotational, vibrational, Raman, and electronic spectroscopy, group theoretical application, nuclear magnetic resonance, electron spin resonance, nuclear quadrupole resonance, and Mossbauer spectroscopy. The intention is to present a good background of the theoretical aspects of the concerned fields which will help the readers to understand the subject firmly and apply them to their own fields according to their needs. For this purpose, several problems have been worked out to make the readers understand how the theories are applied in the relevant practical cases. In this book, it is presumed that the readers are well acquainted with the fundamentals of the basic subjects of physics, for example, mathematical methods, classical mechanics, quantum mechanics, statistical mechanics, and electrodynamics. The purpose of writing is not only to bring a wider field in a single book but also to develop the theories starting from the fundamentals and also from the simple to the final forms through fairly elaborate powerful techniques so that the readers become self-sufficient and apply them accordingly. Since this book covers most of the major fields of molecular spectroscopy, it reduces the work of searching several publications and serves the purpose of getting detailed deductive pictures of various aspects of the subject in a single publication.
Molecular spectroscopy. --- Spectroscopy, Molecular --- Spectrum analysis --- Molecular spectra --- Atoms. --- Molecules. --- Plasma waves. --- Physics. --- Molecular Spectroscopy. --- Atoms and molecules in external fields. --- Waves, instabilities and nonlinear plasma dynamics. --- Applied and Technical Physics. --- Chemistry, Physical and theoretical --- Matter --- Stereochemistry --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Dynamics --- Plasma sound waves --- Acoustic surface waves --- Magnetohydrodynamics --- Plasma (Ionized gases) --- Waves --- Constitution
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This book serves as an introductory text for students and engineers with limited knowledge of metamaterials (and elastic waves). This text begins with the most straightforward vibrating systems, such as single and 2-DOF spring-mass systems. It examines the observed phenomena in 2-DOF systems in an unconventional manner to prepare the reader for research on metamaterials. After presenting wave phenomena in an infinitely connected spring-mass system, an elastic bar, a continuous version of an infinite system, is analyzed. This instructional strategy, which progresses from the discrete model to the continuous model, facilitates efficient comprehension of wave and metamaterial concepts. Using continuous and discrete one-dimensional models, bending waves and their manipulation through metamaterials are also discussed. In the latter chapters of this book, advanced readers are introduced to the fundamental wave phenomena in two-dimensional media and wave manipulation using metamaterials, such as mode-converting transmission. As wave phenomena are the fundamental phenomena in vibrating structures, those interested in acoustics and vibration would gain a great deal of knowledge from this book, as the material covered in it offers a very different perspective on oscillatory phenomena than what is typically found in books on acoustics and vibration. Because this book presents a new technique for manipulating waves using metamaterials, engineers and scientists who work with (ultra)sounds and structural vibrations would find it very useful for expanding their knowledge of relevant topics.
Plasma waves. --- Metamaterials. --- Telecommunication. --- Photonics. --- Geometrical optics. --- Wave theory of light. --- Waves, instabilities and nonlinear plasma dynamics. --- Microwaves, RF Engineering and Optical Communications. --- Ultrafast Photonics. --- Classical Optics, Geometric and Wave optics. --- Light, Wave theory of --- Optics --- Wave-motion, Theory of --- Wave-particle duality --- Optics, Geometrical --- New optics --- Electric communication --- Mass communication --- Telecom --- Telecommunication industry --- Telecommunications --- Communication --- Information theory --- Telecommuting --- Meta materials --- Composite materials --- Electromagnetism --- Plasma sound waves --- Acoustic surface waves --- Magnetohydrodynamics --- Plasma (Ionized gases) --- Waves --- Elastic waves.
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This book presents select, recent developments in nonlinear and complex systems reported at the 1st Online Conference on Nonlinear Dynamics and Complexity, held on November 23-25, 2020. It provides an exchange recent developments, discoveries, and progresses in Nonlinear Dynamics and Complexity. The collection presents fundamental and frontier theories and techniques for modern science and technology, stimulates more research interest for exploration of nonlinear science and complexity; and passes along new knowledge and insight to the next generation of engineers and technologists in a range of fields.
Nonlinear mechanics --- Mathematical models. --- Mechanics, Nonlinear --- Mechanics, Analytic --- Multibody systems. --- Vibration. --- Mechanics, Applied. --- Plasma waves. --- Nonlinear Optics. --- Engineering mathematics. --- Engineering—Data processing. --- System theory. --- Multibody Systems and Mechanical Vibrations. --- Engineering Mechanics. --- Waves, instabilities and nonlinear plasma dynamics. --- Mathematical and Computational Engineering Applications. --- Complex Systems. --- Systems, Theory of --- Systems science --- Science --- Engineering --- Engineering analysis --- Mathematical analysis --- Optics, Nonlinear --- Optics --- Lasers --- Plasma sound waves --- Acoustic surface waves --- Magnetohydrodynamics --- Plasma (Ionized gases) --- Waves --- Applied mechanics --- Engineering, Mechanical --- Engineering mathematics --- Cycles --- Mechanics --- Sound --- Multi-body systems --- Systems, Multibody --- Philosophy --- Mathematics --- Nonlinear optics.
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