Strong pulsed magnetic fields are important for several fields in physics and engineering, such as power generation and accelerator facilities. Basic aspects of the generation of strong and superstrong pulsed magnetic fields technique are given, including the physics and hydrodynamics of the conductors interacting with the field as well as an account of the significant progress in generation of strong magnetic fields using the magnetic accumulation technique. Results of computer simulations as well as a survey of available field technology are completing the volume.
Presents a multi-objective design approach to the many power magnetic devices in use today
Power Magnetic Devices: A Multi-Objective Design Approach addresses the design of power magnetic devices?including inductors, transformers, electromagnets, and rotating electric machinery?using a structured design approach based on formal single- and multi-objective optimization.
The book opens with a discussion of evolutionary-computing-based optimization. Magnetic analysis techniques useful to the design of all the devices considered in the book are then set forth. This material is then used for inductor design so readers can start the design process. Core loss is next considered; this material is used to support transformer design. A chapter on force and torque production feeds into a chapter on electromagnet design. This is followed by chapters on rotating machinery and the design of a permanent magnet AC machine. Finally, enhancements to the design process including thermal analysis and AC conductor losses due to skin and proximity effects are set forth.
Power Magnetic Devices:
Designed to support the educational needs of students, Power Magnetic Devices: A Multi-Objective Design Approach also serves as a valuable reference tool for practicing engineers and designers.Â MATLAB examples are available via the book support site.Â
For seventy years, we have known that Einstein's theory is essentially a theory of propagation of waves for the gravitational field. Confusion enters, however, through the fact that the word wave, in physics, implies sometimes repetition and sometimes not. This confusion is often increased by he use of Fourier transforms, by which a disturbanse which appears to be without repetition is resolved into periodic wave-trains with all frequencies. But, in a general curved space-time, we have nothing corresponding to Fourier transforms. Here, we consider systematically waves corresponding to the propagation of discontinuities of physical quantities describing either fields (essentially electromagnetic fields and gravitational field), or the motion of a fluid, or together, in magnetohydrodynamics, the changes in time of a field and of a fluid. The main equations, for the different studied phenomena, constitute a hyperbolic system and the study of a formal Cauchy problem is possible. We call ordinary waves the case in which the derivative of superior order appearing in the system are discontinuous at the traverse of a hypersurface, the wave front; we call shock waves the case where the derivatives of an order inferior by one are discontinuous at the traverse of a wave front. XI xii PREFACE From 1950, many well-known scientits (Taub, Synge, Choquet-B ruhat, etc.) have studied the corresponding equations for different physical phenomena : systems associated to the electromagnetic and gravitational fields, to hydrodynamics and to magnetohydrodynamics.
Man and Superman
A Comedy and a Philosophy
Man and Superman is a four-act drama written by George Bernard Shaw in 1903. The series was written in response to calls for Shaw to write a play based on the Don Juan theme. Man and Superman opened at The Royal Court Theatre in London on 23 May 1905, but omitted the third act. A part of the act, Don Juan in Hell (Act 3, Scene 2), was performed when the drama was staged on 4 June 1907 at the Royal Court. The play was not performed in its entirety until 1915, when the Travelling Repertory Company played it at the Lyceum Theatre, Edinburgh.
Mr. Whitefield has recently died, and his will indicates that his daughter Ann should be left in the care of two men, Roebuck Ramsden and Jack Tanner. Ramsden, a venerable old man, distrusts John Tanner, an eloquent youth with revolutionary ideas, saying "He is prodigiously fluent of speech, restless, excitable (mark the snorting nostril and the restless blue eye, just the thirty-secondth of an inch too wide open), possibly a little mad". In spite of what Ramsden says, Ann accepts Tanner as her guardian, though Tanner doesn't want the position at all. She also challenges Tanner's revolutionary beliefs with her own ideas. Despite Tanner's professed dedication to anarchy, he is unable to disarm Ann's charm, and she ultimately persuades him to marry her, choosing him over her more persistent suitor, a young man named Octavius Robinson.
Since the publication of volume 3 in 1982 there has been a revival of research on magnetism and a pronounced increase in interest from both the scientific and the technological side. Volume 5 therefore contains chapters that provide the reader with an insight into modern trends in magnetism and new achievements in this area. The topics dealt with here include the increased activity and investigations of the magnetism of magnetic superconductors and investigations of the magnetic properties of hydrides, the understanding of first-order magnetic processes and of quadrupolar interactions in 4f systems and their role in magnetic ordering and magneto-elastic effects, and the magnetism of strongly enhanced itinerant alloys and compounds and the magnetism of Invar alloys.
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