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Showing 1 - 12 of 12 matches in All Departments
As data transfer rates increase within the magnetic recording
industry, improvements in device performance and reliability
crucially depend on the thorough understanding of nonlinear
magnetization dynamics at a sub-nanoscale level.
This is the only book on the market that has been conceived and
deliberately written as a one-semester text on basic electric
circuit theory. As such, this book employs a novel approach to the
exposition of the material in which phasors and ac steady-state
analysis are introduced at the beginning. This allows one to use
phasors in the discussion of transients excited by ac sources,
which makes the presentation of transients more comprehensive and
meaningful. Furthermore, the machinery of phasors paves the road to
the introduction of transfer functions, which are then used in the
analysis of transients and the discussion of Bode plots and
filters. Another salient feature of the text is the consolidation
into one chapter of the material concerned with dependent sources
and operational amplifiers. Dependent sources are introduced as
linear models for transistors on the basis of small signal
analysis. In the text, PSpice simulations are prominently featured
to reinforce the basic material and understanding of circuit
analysis.
Correct and efficient measurements are vital to the understanding
of materials properties and applications. This is especially so for
magnetic materials for which in last twenty years, our
understanding and use have changed dramatically. New or improved
materials have been created and have reached the market. The Soft
amorphous alloys, the Fe-based rare-earth magnets and the giant
magnetorestrictive and magnetoresistive materials have all posed
challenges to measurement. At the same time new digital measurement
techniques have forced a change in laboratory and commercial
measuring setups. A revision of measuring standards also occurred
in the 1990s with the result that there is now a lack of up-to-date
works on the measurement of magnetic materials.
This book provides an in-depth exposition of spin-stand microscopy
of hard disk data which is a new technique recently developed and
extensively tested by the authors of the book. Spin-stand
microscopy is the first magnetic imaging technique where imaging is
performed ex-situ on a rotating disk mounted on a spin-stand. This
technique is one of the fastest scanning-based microscopy
techniques. It is non-invasive and has nano-scale resolution. For
these reasons, it provides unique capabilities for the
visualization of magnetization patterns recorded on hard disks.
This book is self-contained and it covers in sufficient details the
basic facts of magnetic data storage technology, the principles and
theory of spin-stand microscopy, its experimental implementations,
as well as its applications in hard disk diagnostics, imaging of
overwritten patterns, computer forensics of hard disk files, and
data-dependent magnetic thermal relaxations of recorded
magnetization patterns. This book will be a valuable reference for
the magnetic data storage community, magnetic microscopy
professionals as well as engineers and scientists involved in
computer data forensics, commercial data recovery, and the design
of archival data storage systems.
This book provides a theoretical discussion of pulse width modulation (PWM) in power electronic inverters. Pulse width modulation is widely used for the frequency control of speed of ac motors, the design of uninterruptible power supplies (UPS) as well as the integration of renewable energy sources into existing power grid systems. PWM technique is based on approximation of sinusoidal waveforms by sequences (trains) of rectangular pulses whose widths are properly modulated. This width-modulation results in the suppression of low order harmonics at the expense of amplification of high order harmonics which are suppressed by energy-storage elements in load circuits. The discussion covers various PWM techniques with a focus on the optimal time-domain PWM techniques proposed by the authors.
This unique volume provides a broad introduction to plasmon resonances in nanoparticles and their novel applications. Here, plasmon resonances are treated as an eigenvalue problem for specific boundary integral equations and general physical properties of plasmon spectrum are studied in detail. The coupling of incident radiation to specific plasmon modes, the time dynamics of their excitation and dephasing are also analytically treated. Finally, the applications of plasmon resonances to SERS, light controllability (gating) of plasmon resonances in semiconductor nanoparticles, the use of plasmon resonances in thermally assisted magnetic recording (TAMR), as well as in all-optical magnetic recording and for enhancement of magneto-optic effects are presented.
This book presents a concise and rigorous exposition of Preisach hysteresis models and their applications to the modeling of neural memory. It demonstrates that memory of Preisach hysteresis models mimics such properties as: selective nature of neural memories extracted from sensory inputs, distributed nature of neural memories and their engrams, neural memory formation as an emerging property of sparse connectivity, neural memory stability with respect to protein turnover, neural memory storage plasticity and neural memory recalls and their effect on storage.The text is designed to be accessible and appealing to a broad audience of neuroscientists, biologists, bioengineers, electrical engineers, applied mathematicians and physicists interested in neural memory and its molecular basis.
The book is designed for a one-semester graduate course in quantum mechanics for electrical engineers. It can also be used for teaching quantum mechanics to graduate students in materials science and engineering departments as well as to applied physicists. The selection of topics in the book is based on their relevance to engineering applications. The book provides the theoretical foundation for graduate courses in quantum optics and lasers, semiconductor electronics, applied superconductivity and quantum computing. It covers (along with traditional subjects) the following topics: resonant and Josephson tunneling; Landau levels and their relation to the integer quantum Hall effect; effective mass Schrodinger equation and semi-classical transport; quantum transitions in two-level systems; Berry phase and Berry curvature; density matrix and optical Bloch equation for two-level systems; Wigner function and quantum transport; exchange interaction and spintronic.
The book is designed for a one-semester graduate course in quantum mechanics for electrical engineers. It can also be used for teaching quantum mechanics to graduate students in materials science and engineering departments as well as to applied physicists. The selection of topics in the book is based on their relevance to engineering applications. The book provides the theoretical foundation for graduate courses in quantum optics and lasers, semiconductor electronics, applied superconductivity and quantum computing. It covers (along with traditional subjects) the following topics: resonant and Josephson tunneling; Landau levels and their relation to the integer quantum Hall effect; effective mass Schrodinger equation and semi-classical transport; quantum transitions in two-level systems; Berry phase and Berry curvature; density matrix and optical Bloch equation for two-level systems; Wigner function and quantum transport; exchange interaction and spintronic.
Electric power engineering has always been an integral part of electrical engineering education. Providing a unique alternative to existing books on the market, this text presents a concise and rigorous exposition of the main fundamentals of electric power engineering. Contained in a single volume, the materials can be used to teach three separate courses - electrical machines, power systems and power electronics, which are in the mainstream of the electrical engineering curriculum of most universities worldwide. The book also highlights an in-depth review of electric and magnetic circuit theory with emphasis on the topics which are most relevant to electric power engineering.
This new edition has been significantly revised and updated to
reflect advances in the field since the publication of the first
edition, such as the systematic experimental testing of Preisach
models of hysteresis. The author has, however, retained the two
most salient features of the original, the emphasis on the
universal nature of mathematical models of hysteresis and their
applicability to the description of hysteresis phenomena in various
areas of science, technology and economics and its accessibility to
a broad audience of researchers, engineers, and students.
Nonlinear Diffusion of Electromagnetic Fields covers applications
of the phenomena of non-linear diffusion of electromagnetic fields,
such as magnetic recording, electromagnetic shielding and
non-destructive testing, development of CAD software, and the
design of magnetic components in electrical machinery. The material
presented has direct applications to the analysis of eddy currents
in magnetically nonlinear and hysteretic conductors and to the
study of magnetization processes in electrically nonlinear
superconductors. This book will provide very valuable technical and
scientific information to a broad audience of engineers and
researchers who are involved in these diverse areas.
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