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This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact

Sun --- magnetic flux rope --- magnetic twist --- coronal mass ejection --- filament eruption --- magnetic cloud

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Gas metal arc welding (GMAW) also referred to as MIG (metal inert gas) is one of the key processes in industrial manufacturing. MIG welding guide provides comprehensive, easy-to-understand coverage of this widely used process. The reader is presented with a variety of topics from the choice of shielding gases, filler materials, welding equipment and lots of practical advice. The book provides an overview of new developments in various processes such as: flux cored arc welding; new high productive methods; pulsed MIG welding; MIG-brazing; robotic welding applications and occupational health and

Gas metal arc welding. --- Gas metal arc welding --- Carbon dioxide arc welding --- Electrogas welding --- Magnetic flux welding --- Metal inert gas welding --- MIG welding --- Electric welding

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Arc welding is one of the key processes in industrial manufacturing, with welders using two types of processes - gas metal arc welding (GMAW) and gas tungsten arc welding (GTAW). This new book provides a survey-oriented account of the modeling, sensing, and automatic control of the GMAW process.Researchers are presented with the most recent information in the areas of modeling, sensing and automatic control of the GMAW process, collecting a number of original research results on the topic from the authors and colleagues. Providing an overview of a variety of topics, this boo

Gas metal arc welding. --- Electric welding. --- Arc welding --- Electric arc welding --- Resistance welding --- Spot welding --- Welding --- Carbon dioxide arc welding --- Electrogas welding --- Magnetic flux welding --- Metal inert gas welding --- MIG welding --- Electric welding

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The present research studies the fundamental physics occurring during the magnetic flux and magnetized plasma compression by plasma implosion. This subject is relevant to numerous studies in laboratory and space plasmas. Recently, it has attracted particular interest due to the advances in producing high-energy-density plasmas in fusion-oriented experiments, based on the approach of magnetized plasma compression. The studied configuration consists of a cylindrical gas-puff shell with pre-embedded axial magnetic field that pre-fills the anode-cathode gap. Subsequently, axial pulsed current is driven through the plasma generating an azimuthal magnetic field that compresses the plasma and the axial magnetic field embedded in it. A key parameter for the understanding of the physics occurring during the magnetized plasma compression is the evolution and distribution of the axial and azimuthal magnetic fields. Here, for the first time ever, both fields are measured simultaneously employing non-invasive spectroscopic methods that are based on the polarization properties of the Zeeman effect. These measurements reveal unexpected results of the current distribution and the nature of the equilibrium between the axial and azimuthal fields. These observations show that a large part of the current does not flow in the imploding plasma, rather it flows through a low-density plasma residing at large radii. The development of a force-free current configuration is suggested to explain this phenomenon. Previously unpredicted observations in higher-power imploding-magnetized-plasma experiments, including recent unexplained structures observed in the Magnetized Liner Inertial Fusion experiment, may be connected to the present discovery.

Plasma (Ionized gases) --- Magnetic flux compression. --- Nuclear fusion. --- Magnetism. --- Plasma Physics. --- Nuclear Fusion. --- Magnetism, Magnetic Materials. --- Mathematical physics --- Physics --- Electricity --- Magnetics --- Fusion, Nuclear --- Fusion reactions --- Fusion --- Nuclear reactions --- Plasma (Ionized gases). --- Magnetic materials. --- Materials --- Gaseous discharge --- Gaseous plasma --- Magnetoplasma --- Ionized gases

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This book presents the physics of magnetic flux tubes, including their fundamental properties and collective phenomena in an ensemble of flux tubes. The physics of magnetic flux tubes is vital for understanding fundamental processes in the solar atmosphere that are shaped and governed by magnetic fields. The concept of magnetic flux tubes is also central to various magnetized media ranging from laboratory plasma and Earth's magnetosphere to planetary, stellar and galactic environments. The book covers both theory and observations. Theoretical models presented in analytical and phenomenological forms that are tailored to practical applications. These are welded together with empirical data extending from the early pioneering observations to the most recent state-of-the-art data. This new edition of the book is updated and contains a significant amount of new material throughout as well as four new chapters and 48 problems with solutions. Most problems make use of original papers containing fundamental results. This way, the original paper, often based on complex theory, turns into a convenient tool for practical use and quantitative analysis.

Solar magnetic fields. --- Magnetic flux. --- Astrophysics. --- Astronomical physics --- Astronomy --- Cosmic physics --- Physics --- Flux, Magnetic --- Magnetic fields --- Magnetic induction --- Heliomagnetism --- Magnetism, Solar --- Solar magnetic field --- Solar magnetism --- Stars --- Magnetism. --- Astrophysics and Astroparticles. --- Atoms and Molecules in Strong Fields, Laser Matter Interaction. --- Magnetism, Magnetic Materials. --- Applied and Technical Physics. --- Mathematical physics --- Electricity --- Magnetics --- Atoms. --- Physics. --- Magnetic materials. --- Materials --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Dynamics --- Chemistry, Physical and theoretical --- Matter --- Stereochemistry --- Constitution