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Advances in Nonlinear Dynamos

Advances in Nonlinear Dynamos Book
Author : Antonio Ferriz-Mas,Manuel Nunez
Publisher : CRC Press
Release : 2019-07-17
ISBN : 9780203493137
Language : En, Es, Fr & De

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Book Description :

Nonlinear dynamo theory is central to understanding the magnetic structures of planets, stars and galaxies. In chapters contributed by some of the leading scientists in the field, this text explores some of the recent advances in the field. Both kinetic and dynamic approaches to the subject are considered, including fast dynamos, topological methods in dynamo theory, physics of the solar cycle and the fundamentals of mean field dynamo. Advances in Nonlinear Dynamos is ideal for graduate students and researchers in theoretical astrophysics and applied mathematics, particularly those interested in cosmic magnetism and related topics, such as turbulence, convection, and more general nonlinear physics.

Lectures on Solar and Planetary Dynamos

Lectures on Solar and Planetary Dynamos Book
Author : M. R. E. Proctor,A. D. Gilbert
Publisher : Cambridge University Press
Release : 1994-12-08
ISBN : 9780521467049
Language : En, Es, Fr & De

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Book Description :

Comprised of lectures for an intensive course held at the Newton Institute in Cambridge, as part of a NATO Advanced Study Institute, the topics covered within this volume include planetary and solar dynamos, fast dynamos, and the use of symmetry principles to derive evolution equations.

Dynamos

Dynamos Book
Author : N.A
Publisher : Elsevier
Release : 2011-07-29
ISBN : 0080560539
Language : En, Es, Fr & De

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Book Description :

Dynamos is a collection of lectures given in July 2007 at the Les Houches Summer School on "Dynamos". Provides a pedagogical introduction to topics in Dynamos Addresses each topic from the basis to the most recent developments Covers the lectures by internationally-renowned and leading experts

Fluid Dynamics and Dynamos in Astrophysics and Geophysics

Fluid Dynamics and Dynamos in Astrophysics and Geophysics Book
Author : Andrew M. Soward,Christopher A. Jones,David W. Hughes,Nigel O. Weiss
Publisher : CRC Press
Release : 2005-03-16
ISBN : 0203017692
Language : En, Es, Fr & De

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Book Description :

The increasing power of computer resources along with great improvements in observational data in recent years have led to some remarkable and rapid advances in astrophysical fluid dynamics. The subject spans three distinct but overlapping communities whose interests focus on (1) accretion discs and high-energy astrophysics; (2) solar, stellar, and

Turbulence Dynamos Accretion Disks Pulsars and Collective Plasma Processes

Turbulence  Dynamos  Accretion Disks  Pulsars and Collective Plasma Processes Book
Author : S.S. Hasan,R. Gangadhara,V. Krishan
Publisher : Springer Science & Business Media
Release : 2008-10-11
ISBN : 140208868X
Language : En, Es, Fr & De

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Book Description :

It is well established and appreciated by now that more than 99% of the baryonic matter in the universe is in the plasma state. Most astrophysical systems could be approximated as conducting fluids in a gravitational field. It is the combined effect of these two that gives rise to the mind boggling variety of configurations in the form of filaments, loops, jets and arches. The plasma structures that cannot last for more than a second or less in a laboratory remain intact for astronomical time and spatial scales in an astrophysical setting. The case in point is the well known extragalactic jets whose collimation and stability has remained an enigma inspite of the efforts of many for many long years. The high energy radiation sources such as the active galactic nuclei again summon the coherent plasma radiation processes for their exceptionally large output from regions of relatively small physical sizes. The generation of magnetic field, anomalous transport of angular momentum with decisive bearing on star formation processes, the ubiquitous MHD turbulence under conditions irreproducible in terrestrial laboratories are some of the generic issues still awaiting a concerted effort for their understanding. Quantum Plasmas, pair plasmas and pair-ion plasmas exist under extreme conditions in planetary interiors and exotic stars. In this workshop plasma physicists, astrophysicists and plasma astrophysicists are brought together to discuss these issues.

Solar and Planetary Dynamos

Solar and Planetary Dynamos Book
Author : M. R. E. Proctor,P. C. Matthews,A. M. Rucklidge
Publisher : Cambridge University Press
Release : 2008-01-21
ISBN : 9780521054157
Language : En, Es, Fr & De

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Book Description :

Dynamo theory is the study of how large scale magnetic fields can arise in bodies such as the Earth, Sun and stars, and it brings together researchers in such diverse subjects as geophysics astronomy and nuclear reactor technology. In this book are papers on the theory of dynamos, delivered at the Isaac Newton Institute for Mathematical Sciences in Cambridge in September 1992, and these have been carefully brought together to form a unified presentation. Topics covered include: modelling of solar magnetic field generation, theoretical studies of the dynamics of the Earthts core, studies of the magnetic fields in galaxies, and papers on 0fast dynamost, the study of magnetic field regeneration in fluid of very high electrical conductivity. This volume represents the most comprehensive and up-to-date record of research into the theory of dynamos.

Solar and Stellar Dynamos

Solar and Stellar Dynamos Book
Author : Paul Charbonneau
Publisher : Springer
Release : 2012-11-06
ISBN : 3642320937
Language : En, Es, Fr & De

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Book Description :

Astrophysical dynamos are at the heart of cosmic magnetic fields of a wide range of scales, from planets and stars to entire galaxies. This book presents a thorough, step-by-step introduction to solar and stellar dynamos. Looking first at the ultimate origin of cosmic seed magnetic fields, the antagonists of field amplification are next considered: resistive decay, flux expulsion, and flows ruled out by anti-dynamo theorems. Two kinematic flows that can act as dynamos are then studied: the Roberts cell and the CP-flow. Mean-field electrodynamics and derivation of the mean-field dynamo equations lead to the alpha Omega-dynamo, the flux transport dynamo, and dynamos based on the Babcock-Leighton mechanism. Alternatives to the mean-field theory are also presented, as are global MHD dynamo simulations. Fluctuations and grand minima in the solar cycle are discussed in terms of dynamo modulations through stochastic forcing and nonlinear effects. The book concludes with an overview of the major challenges in understanding stellar magnetic fields and their evolution in terms of various dynamo models, global MHD simulations, and fossil fields. Each chapter is accompanied by an annotated bibliography, guiding the readers to the relevant technical literature, which may lead them to carry out their own research in the field of dynamo theory.

Mathematical Aspects of Natural Dynamos

Mathematical Aspects of Natural Dynamos Book
Author : Emmanuel Dormy,Andrew M. Soward
Publisher : CRC Press
Release : 2007-06-11
ISBN : 1420055267
Language : En, Es, Fr & De

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Book Description :

Although the origin of Earth's and other celestial bodies' magnetic fields remains unknown, we do know that the motion of electrically conducting fluids generates and maintains these fields, forming the basis of magnetohydrodynamics (MHD) and, to a larger extent, dynamo theory. Answering the need for a comprehensive, interdisciplinary introduction to this area, Mathematical Aspects of Natural Dynamos provides a foundation in dynamo theory before moving on to modeling aspects of natural dynamos. Bringing together eminent international contributors, the book first introduces governing equations, outlines the kinematic dynamo theory, covers nonlinear effects, including amplitude saturation and polarity reversals, and discusses fluid dynamics. After establishing this base, the book describes the Earth's magnetic field and the current understanding of its characteristics. Subsequent chapters examine other planets in our solar system and the magnetic field of stars, including the sun. The book also addresses dynamo action on the large scale of galaxies, presents modeling experiments of natural dynamos, and speculates about future research directions. After reading this well-illustrated, thorough, and unified exploration, you will be well prepared to embark on your own journey through this fascinating area of research.

From Dominoes to Dynamos

From Dominoes to Dynamos Book
Author : John Bresnan
Publisher : Council on Foreign Relations
Release : 1994
ISBN : 9780876091661
Language : En, Es, Fr & De

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Book Description :

The demise of America's Cold War-era foreign policy, has transformed Southeast Asia's relationship with the United States. No longer seen in the political context of communist containment, the countries of Southeast Asia - Thailand, Indonesia, Malaysia, Singapore, the Philippines, and Vietnam - are becoming increasingly powerful players in the world economy. Their unparalleled economic growth will dramatically affect the U.S. economy and its relations to other regional powers such as Japan and China. How well the United States responds to this challenge and to the opportunity to forge new relationships in the region will significantly shape the success or failure of our performance as a global superpower. In From Dominoes to Dynamos, John Bresnan, an expert on U.S.-Asian relations, details the steps the United States should take to define a new role in the area. He examines shifting American interests - from strategic to economic - in the region, and surveys the history of an area that includes both historic allies, such as the Philippines, and adversaries, including Vietnam. The book includes a detailed analysis of current economic trends, as well as recommendations for coping with Japan's growing influence in the Southeast Asian economy and a clear analysis of the direction U.S. foreign policy must take to maintain its position as a leading player in the region.

Dinosaurs or Dynamos

Dinosaurs or Dynamos Book
Author : Helge Ole Bergesen,Leiv Lunde
Publisher : Routledge
Release : 2013-11-05
ISBN : 1134193858
Language : En, Es, Fr & De

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Book Description :

Explores how much and what the World Bank and the United Nations can really be expected to achieve. The text begins with a detailed account of the evolution of the two organizations as multilateral development institutions and then focuses on the functions that the World Bank and the UN carry out, and the governing structures that underlie their activities. The authors then go on to question what need there is for these two multilateral institutions in the next century and which tasks they can undertake in promoting world development. Both the United Nations (UN) and the World Bank have repeatedly proclaimed their solemn ambitions to improve the lot of humankind. Dinosaurs or Dynamos? explores how much, and what, they can really be expected to do. Both have extended their functions far beyond their original mandates, while their decision-making structures have remained basically unaltered despite recent adaptations on the part of the World Bank. Such expansions have created serious strains on both organizations. The UN has ambitions to perform tasks, such as the search for 'good governance' and 'sustainable development', for which it is ill equipped. The World Bank has taken on normative functions - 'the premier development institution' - that are incompatible with its traditional structures. The authors ask, what need is there for these two multilateral development institutions in the next century? Which tasks in promoting world development can they undertake that others cannot? To whom are these institutions politically accountable, who sets their agendas and are they credible given financial constraints? Dinosaurs or Dynamos? is an essential guide for those working within the international community, non-governmental organizations, governments and students of development, economics, politics and international relations.

Dreamers Discoverers Dynamos

Dreamers  Discoverers   Dynamos Book
Author : Lucy Jo Palladino, Ph.D.
Publisher : Ballantine Books
Release : 2010-12-01
ISBN : 0307775380
Language : En, Es, Fr & De

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Book Description :

Does your imaginative, computer-proficient daughter tune out in the classroom? Does your spirited son become headstrong and aggressive when faced with the simplest decisions? Does your bold, energetic child have trouble focusing on basic tasks? Millions of children--one in five--have what psychologist Lucy Jo Palladino, Ph.D., calls the Edison trait: dazzling intelligence, an active imagination, a free-spirited approach to life, and the ability to drive everyone around them crazy. Named after Thomas Edison--who flunked out of school only to harness his talents and give the world some of its finest inventions--the Edison trait is on the rise in our younger generation. The heart of the issue is that they think divergently--they overflow with many ideas--while schools, organized activities, and routines of daily living reward convergent thinking, which focuses on one idea at a time. Drawing on examples from more than two decades of private practice, Dr. Palladino helps us cope with this challenging aspect of our child's intellect and personality, explaining in clear terms: - The three Edison-trait personality types: dreamers, discoverers, and dynamos - The eight steps to understanding, reaching, and teaching your Edison-trait child - The connection between the Edison trait and A.D.D.

Stretch Twist Fold The Fast Dynamo

Stretch  Twist  Fold  The Fast Dynamo Book
Author : Stephen Childress,Andrew D. Gilbert
Publisher : Springer Science & Business Media
Release : 1995-10-09
ISBN : 3540602585
Language : En, Es, Fr & De

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Book Description :

The study of the magnetic fields of the Earth and Sun, as well as those of other planets, stars, and galaxies, has a long history and a rich and varied literature, including in recent years a number of review articles and books dedicated to the dynamo theories of these fields. Against this background of work, some explanation of the scope and purpose of the present monograph, and of the presentation and organization of the material, is therefore needed. Dynamo theory offers an explanation of natural magnetism as a phenomenon of magnetohydrodynamics (MHD), the dynamics governing the evolution and interaction of motions of an electrically conducting fluid and electromagnetic fields. A natural starting point for a dynamo theory assumes the fluid motion to be a given vector field, without regard for the origin of the forces which drive it. The resulting kinematic dynamo theory is, in the non-relativistic case, a linear advection-diffusion problem for the magnetic field. This kinematic theory, while far simpler than its magnetohydrodynamic counterpart, remains a formidable analytical problem since the interesting solutions lack the easiest symmetries. Much ofthe research has focused on the simplest acceptable flows and especially on cases where the smoothing effect of diffusion can be exploited. A close analog is the advection and diffusion of a scalar field by laminar flows, the diffusion being measured by an appropriate Peclet number. This work has succeeded in establishing dynamo action as an attractive candidate for astrophysical magnetism.

The Dynamo

The Dynamo Book
Author : Charles Caesar Hawkins,F. Wallis
Publisher :
Release : 1893
ISBN :
Language : En, Es, Fr & De

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Book Description :

Dynamo Electricity Machinery

Dynamo Electricity Machinery Book
Author : Silvanus Phillips Thompson
Publisher : Cambridge University Press
Release : 2011-05-19
ISBN : 1108026877
Language : En, Es, Fr & De

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Book Description :

A classic 1880s guide to the many types of dynamo used to generate electricity, and the theory underlying their function.

The Management of Dynamos

The Management of Dynamos Book
Author : G W Lummis Paterson
Publisher : Wentworth Press
Release : 2019-02-25
ISBN : 9780469712966
Language : En, Es, Fr & De

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Book Description :

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Management of Dynamos A Handy Book of Theory and Practice

Management of Dynamos  A Handy Book of Theory and Practice Book
Author : G. W. Lummis Paterson
Publisher : Wentworth Press
Release : 2019-02-25
ISBN : 9780469685345
Language : En, Es, Fr & De

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Book Description :

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.