Tag Archives: connection

The Weyl Operator and its Generalization

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The Weyl Operator and its Generalization (Pseudo-Differential Operators) by Leon Cohen
English | 2012-12-12 | ISBN: 3034802935 | PDF | 171 pages | 0,9 MB

The Weyl Operator and its Generalization
The discovery of quantum mechanics in the years 1925-1930 necessitated the consideration of associating ordinary functions with non-commuting operators. Methods were proposed by Born/Jordan, Kirkwood, and Weyl. Sometime later, Moyal saw the connection between the Weyl rule and the Wigner distribution, which had been proposed by Wigner in 1932 as a way of doing quantum statistical mechanics. The basic idea of associating functions with operators has since been generalized and developed to a high degree. It has found several application fields, including quantum mechanics, pseudo-differential operators, time-frequency analysis, quantum optics, wave propagation, differential equations, image processing, radar, and sonar. This book aims at bringing together the results from the above mentioned fields in a unified manner and showing the reader how the methods have been applied. A wide audience is addressed, particularly students and researchers who want to obtain an up-to-date working knowledge of the field. The mathematics is accessible to the uninitiated reader and is presented in a straightforward manner.
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Magnetic Hysteresis

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Magnetic Hysteresis by Edward Della Torre
English | 1999 | ISBN: 0780360419 | 232 Pages | PDF | 10 MB
Electrical Engineering Magnetic Hysteresis Understanding magnetic hysteresis is vitally important to the development of the science of magnetism as a whole and to the advancement of practical magnetic device applications.

Magnetic Hysteresis
, by acclaimed expert Edward Della Torre, presents a clear explanation of the connection between physical principles and phenomenological hysteresis. This comprehensive book offers a lucid analysis that enables the reader to save valuable time by reducing trial-and-error design. Dr. Della Torre uses physical principles to modify Preisach modeling and to describe the complex behavior of magnetic media. While Pretsach modeling is a useful mathematical tool, its congruency and deletion properties present limitations to accurate descriptions of magnetic materials. Step-by-step, this book describes the modifications that can overcome these limitations. Special attention is given to the use of feedback around a Preisach transducer to remove the congruency restriction, and to the use of accommodation and aftereffect models to remove the deletion restriction. Magnetic state selection rules are introduced to couple scalar Preisach models to form a vector model. is indispensable reading for engineers, physicists, and materials scientists who want to gain a better understanding of hysteresis losses and create more energy-efficient motor designs.
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Abstract Harmonic Analysis of Continuous Wavelet Transforms (Lecture Notes in Mathematics)

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Abstract Harmonic Analysis of Continuous Wavelet Transforms (Lecture Notes in Mathematics) by Hartmut Führ
English | Apr 6, 2005 | ISBN: 3540242597 | 193 Pages | PDF | 1 MB
This volume contains a systematic discussion of wavelet-type inversion formulae based on group representations, and their close connection to the Plancherel formula for locally compact groups.

Abstract Harmonic Analysis of Continuous Wavelet Transforms (Lecture Notes in Mathematics)
The connection is demonstrated by the discussion of a toy example, and then employed for two purposes: Mathematically, it serves as a powerful tool, yielding existence results and criteria for inversion formulae which generalize many of the known results. Moreover, the connection provides the starting point for a – reasonably self-contained – exposition of Plancherel theory. Therefore, the volume can also be read as a problem-driven introduction to the Plancherel formula.
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Precisely Predictable Dirac Observables

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Precisely Predictable Dirac Observables
English | Physics, Mechanics, Mathematics | 18. October 2006 | ISBN-10: 1402051689 | 269 pages | pdf | 3 mb
This work presents a Clean Quantum Theory of the Electron, based on Dirac's equation.

Precisely Predictable Dirac Observables
"Clean" in the sense of a complete mathematical explanation of the well known paradoxes of Dirac's theory and a connection to classical theory. It discusses the existence of an accurate split between physical states belonging to the electron and to the positron as well as the fact that precisely predictable observables must preserve this split.
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Measured Tones: The Interplay of Physics and Music,2nd Edition

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Measured Tones: The Interplay of Physics and Music,2nd Edition by Ian Johnston
English | Mar 1, 2002 | ISBN: 0750307625 | 420 Pages | PDF | 13 MB
There has always been a close connection between physics and music. From the great days of ancient Greek science, ideas and speculations have passed backward and forward between natural philosophers (physicists) and musical theorists. Measured Tones: The Interplay of Physics and Music, Second Edition explores the story of that relationship in an entertaining and user-friendly way.

Measured Tones: The Interplay of Physics and Music,2nd Edition
The book provides an easy-to-understand introduction to the physics involved in every stage of the music making process: from the very earliest experiments on vibrating strings and primitive sound makers to the latest concerns of digital sound recording, MP3 files, and information theory. At the same time, it examines the story of our developing concept of the universe we live in: from the ancient visions of a cosmos regulated by the music of the spheres to our current understanding of an expanding universe controlled by the laws of quantum mechanics and string theory. Running through all this is one recurring question – the so-called puzzle of consonance. Why do humans respond to music and musical sounds the way they do? It is the attempts by musicians and scientists through the ages to apply new knowledge to answer this question that gives this story its fascination.

Measured Tones should provide rewarding reading for any physics teacher or student who would like to know more about music and where it impinges on their subject as well as for anyone who is musically inclined.
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Over-the-Road Wireless For Dummies

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Over-the-Road Wireless For Dummies by E. Phil Haley
For Dummies | Aug 07 2006 | ISBN: 0471784036 | Pages: 364 | PDF | 10.72 MB
Do you roam the road making a living, or are you enjoying the nomadic life of a retiree with a motor home? Either way, life goes on no matter where you're hanging your hat tonight. Bills still need to be paid, grandchildren grow up way too fast, and you've gotten pretty dependent on your e-mail.

Over-the-Road Wireless For Dummies
How do you stay connected to the rest of the world while you're on the road?
For a growing number of over-the-road drivers, business travelers, and RV enthusiasts, the answer is a wireless Internet connection. With a laptop and wireless access, you can

Pay bills, check accounts, and handle banking online
Send and receive e-mail
Surf the Web
Access your home PC
Make inexpensive phone calls with VoIP
Watch TV, download movies, and listen to satellite radio
"So," you say, "I see people in movies popping open their laptops and getting online wherever they happen to be. It looks awfully easy-why do I need a book?" Well, lots of things are easy once you know how. Over-the-Road Wireless For Dummies tells you how in plain English, so you can take advantage of all those cool opportunities safely and easily. You'll discover how to

Choose the best Wi-Fi access service for your needs and locate hotspots
Assess cellular data services and satellite access to make informed choices about service
Adapt your laptop or PDA for wireless, set up an external antenna, and install an external amplifier
Use your cell phone as a modem
Identify security threats, protect your data with strong passwords and encryption, and set up a personal firewall
Install and use Skype and make phone calls with your laptop
Make your truck or RV your office with online freight-finding services, a GPS receiver, a travel printer, and software to keep logs and expense records
Access streaming TV and radio on the road
With Over-the-Road Wireless For Dummies to help, you can send online birthday cards, watch video of the grandchildren, do your banking, pay bills, keep records, connect to your home PC, and even file your taxes, no matter how far away you roam!
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Elizabeth Bishop: Lines of Connection

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Linda Anderson, "Elizabeth Bishop: Lines of Connection"
English | ISBN: 0748665749 | 2013 | 192 pages | PDF | 1 MB

Elizabeth Bishop: Lines of Connection
A new reading of Elizabeth Bishop's work ranging across archival, historical and theoretical materials Linda Anderson explores Elizabeth Bishop's poetry, from her early days at Vassar College to her last great poems in Geography III and the later uncollected poems. Drawing generously on Bishop's notebooks and letters, the book situates Bishop both in her historical and cultural context and in terms of her own writing process, where the years between beginning a poem and completing it, for which Bishop is legendary, are seen as a necessary part of their composition. The book begins by offering a new reading of Bishop's relationship with Marianne Moore and with modernism. Through her journeys to Europe Bishop, it is also argued, learned a great deal from visual artists and from surrealism. However the book also follows the way Bishop came back to memories of her childhood, developing ideas about narrative, in order to explore time, both the losses it demands and the connections it makes possible. The lines of connections are both those between Bishop and her contemporaries and her context and those she inscribed through her own work, suggesting how her poems incorporate a process of arrival and create new possibilities of meaning. Key Features *Draws on archival and historical material *Provides readings of Bishop's major poetry and prose in context *Draws on psychoanalytic and poststructuralist theory *Connects the poems with their process of composition
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