Elements of Electromagnetics

Author: Matthew N. O. Sadiku
Publisher: Oxford Series in Electrical an
ISBN: 9780190698614
Category: Science
Page: 920
View: 9398

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Taking a vector-first approach, this text provides a balanced presentation of a host of topics including electrostatics, magnetostatics, fields, waves, and applications like transmission lines, waveguides, and antennas. The new edition includes new Application Notes detailing real-worldconnections, a revised math pre-test for professors to assess students' mathematical skills, and new and updated problems.

Microwave/RF Applicators and Probes

for Material Heating, Sensing, and Plasma Generation
Author: Mehrdad Mehdizadeh
Publisher: William Andrew
ISBN: 0323328423
Category: Technology & Engineering
Page: 440
View: 6869

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Microwave/RF Applicators and Probes for Material Heating, Sensing, and Plasma Generation, Second Edition, encompasses the area of high-frequency applicators and probes for material interactions as an integrated science. Based on practical experience rather than entirely on theoretical concepts, and emphasizing phenomenological explanations and well-annotated figures, the book represents one of the most important resources on the topics of microwave technologies, applications of RF and microwaves in industry (industrial heating and drying), and microwave engineering. After covering the basics of field-material interactions, the book reviews and categorizes probes and applicators, demonstrates their real-world applications, and offers numerically solved examples. Readers will find valuable design rules and principles of high-frequency applicators and probes for material processing and sensing applications in this expanded edition. Presents new information on how the interactions of electromagnetic fields with materials at high frequencies have given rise to a vast array of practical applications in industry, science, medicine, and consumer markets Thoroughly revised and expanded edition, providing an update on the most recent trends and findings Contains many new sections within existing chapters, along with new chapters on applicators for plasmas at microwave/RF frequencies

Principles and Applications of Time Domain Electrometry in Geoenvironmental Engineering

Author: A.M.O. Mohamed
Publisher: CRC Press
ISBN: 9780415411295
Category: Science
Page: 603
View: 2533

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Time domain electrometry (TDE) is a general term which includes time domain reflectrometry and time domain transmissiometry. It is a commercially-viable technique for leak detection, contaminant monitoring, and moisture content determination in contaminant transport modelling. Under demographic pressure, contaminated sites are increasingly being re-developed for domestic and industrial use; and this presents an urgent need for reliable, non-intrusive and integrated methods of subsurface characterization, detection and monitoring of organic and inorganic pollutants, soil moisture content and salinity. This book provides an overview of the potential application of TDE in geoenvironmental engineering and describes the geophysical methods used.

Elements Of Electromagnetics 3E

Author: Matthew N. O. Sadiku
Publisher: Artmed
ISBN: 9780195134773
Category: Science
Page: 765
View: 4927

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Thoroughly updated and revised, this third edition of Sadiku's Elements of Electromagnetics is designed for the standard sophomore/junior level electromagnetics course taught in departments of electrical engineering. It takes a two-semester approach to fundamental concepts and applications in electromagnetics beginning with vecotr analysis-which is then applied throughout the text. A balanced presentation of time-varying fields and static fields prepares students for employment in today's industrial and manufacturing sectors. Mathematical theorems are treated separately from physical concepts. Students, therefore, do not need to review any more mathematics than their level of proficiency requires. Sadiku is well-known for his excellent pedagogy, and this edition refines his approach even further. Student-oriented pedagogy comprises: chapter introductions showing how the forthcoming material relates to the previous chapter, summaries, boxed formulas, and multiple choice review questions with answers allowing students to gauge their comprehension. Many new problems have been added throughout the text, as well as a new chapter on "Modern Topics" covering microwaves, electromagnetic interference and compatability, and optical fibers. This book is appropriate for sophomore/junior level students in electrical engineering. It will also be accompanied by a Solutions Manual, available free to adopters of the main text.

McGraw-Hill Concise Encyclopedia of Physics

Author: McGraw-Hill
Publisher: McGraw-Hill Companies
Category: Science
Page: 832
View: 4616

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Hundreds of well-illustrated articles explore the most important fields of science. The entries are supplemented by conversion tables, explanations of scientific, technical and mathematical notations as well as tables of statistical and historical interest.

Transformers and Inductors for Power Electronics

Theory, Design and Applications
Author: W.G. Hurley,W.H. Wölfle
Publisher: John Wiley & Sons
ISBN: 1118544676
Category: Technology & Engineering
Page: 376
View: 313

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Based on the fundamentals of electromagnetics, this clear andconcise text explains basic and applied principles of transformerand inductor design for power electronic applications. It detailsboth the theory and practice of inductors and transformers employedto filter currents, store electromagnetic energy, provide physicalisolation between circuits, and perform stepping up and down of DCand AC voltages. The authors present a broad range of applications from modernpower conversion systems. They provide rigorous design guidelinesbased on a robust methodology for inductor and transformerdesign. They offer real design examples, informed by provenand working field examples. Key features include: emphasis on high frequency design, including optimisation ofthe winding layout and treatment of non-sinusoidal waveforms a chapter on planar magnetic with analytical models anddescriptions of the processing technologies analysis of the role of variable inductors, and theirapplications for power factor correction and solar power unique coverage on the measurements of inductance andtransformer capacitance, as well as tests for core losses at highfrequency worked examples in MATLAB, end-of-chapter problems, and anaccompanying website containing solutions, a full set ofinstructors’ presentations, and copies of all thefigures. Covering the basics of the magnetic components of powerelectronic converters, this book is a comprehensive reference forstudents and professional engineers dealing with specialisedinductor and transformer design. It is especially useful for seniorundergraduate and graduate students in electrical engineering andelectrical energy systems, and engineers working with powersupplies and energy conversion systems who want to update theirknowledge on a field that has progressed considerably in recentyears.

Inverse Problems and Optimal Design in Electricity and Magnetism

Author: P. Neittaanmäki,M. Rudnicki,A. Savini
Publisher: Oxford University Press
ISBN: 9780198593836
Category: Mathematics
Page: 367
View: 9606

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The impact of optimization methods in electromagnetism has been much less than in mechanical engineering and particularly the solution of inverse problems in structural mechanics. This book addresses this omission: it will serve as a guide to the theory as well as the computer implementation of solutions. It is self-contained covering all the mathematical theory necessary.

Computer Arithmetic

Algorithms and Hardware Designs
Author: Behrooz Parhami
Publisher: Oxford University Press, USA
ISBN: 9780195328486
Category: Computers
Page: 641
View: 5234

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Ideal for graduate and senior undergraduate courses in computer arithmetic and advanced digital design, Computer Arithmetic: Algorithms and Hardware Designs, Second Edition, provides a balanced, comprehensive treatment of computer arithmetic. It covers topics in arithmetic unit design and circuit implementation that complement the architectural and algorithmic speedup techniques used in high-performance computer architecture and parallel processing. Using a unified and consistent framework, the text begins with number representation and proceeds through basic arithmetic operations, floating-point arithmetic, and function evaluation methods. Later chapters cover broad design and implementation topics-including techniques for high-throughput, low-power, fault-tolerant, and reconfigurable arithmetic. An appendix provides a historical view of the field and speculates on its future. An indispensable resource for instruction, professional development, and research, Computer Arithmetic: Algorithms and Hardware Designs, Second Edition, combines broad coverage of the underlying theories of computer arithmetic with numerous examples of practical designs, worked-out examples, and a large collection of meaningful problems. This second edition includes a new chapter on reconfigurable arithmetic, in order to address the fact that arithmetic functions are increasingly being implemented on field-programmable gate arrays (FPGAs) and FPGA-like configurable devices. Updated and thoroughly revised, the book offers new and expanded coverage of saturating adders and multipliers, truncated multipliers, fused multiply-add units, overlapped quotient digit selection, bipartite and multipartite tables, reversible logic, dot notation, modular arithmetic, Montgomery modular reduction, division by constants, IEEE floating-point standard formats, and interval arithmetic. Features: * Divided into 28 lecture-size chapters * Emphasizes both the underlying theories of computer arithmetic and actual hardware designs * Carefully links computer arithmetic to other subfields of computer engineering * Includes 717 end-of-chapter problems ranging in complexity from simple exercises to mini-projects * Incorporates many examples of practical designs * Uses consistent standardized notation throughout * Instructor's manual includes solutions to text problems * An author-maintained website http://www.ece.ucsb.edu/~parhami/text_comp_arit.htm contains instructor resources, including complete lecture slides

Electric Machinery and Transformers

Author: Bhag S. Guru,Huseyin R. Hiziroglu
Publisher: Oxford University Press
ISBN: 9780195138900
Category: Technology & Engineering
Page: 700
View: 6115

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This is a revision of Guru/Hiziroglu: Electric Machinery and Transformers, 2/E. The text is designed for the standard third or fourth year (junior/senior) course in electrical engineering commonly called electric machinery or electromechanical energy conversion. This text discusses the principles behind building the primary infrastructure for the generation of electricity (such as hydroelectric dams, turbines, etc.) that supplies the energy needs of people throughout the world. In addition to power generation, the book covers the basics of various types of electric motors, from large electric train motors, to those in hair dryers and smaller devices. The largest markets for a book such as this will be found in countries with developing infrastructures. The text is best known for its accuracy, pedagogy, and clear writing style. This revision should make Electric Machinery and Transformers the most up-to-date text on the market. Electric Machinery and Transformers continues its strong pedagogical tradition with a wealth of examples, new exercises, review questions, and effective chapter summaries. Electric Machinery and Transformers begins with a review of the basics of circuit theory and electromagnetics. Chapter 3 begins the heart of the course with the principles of electromehcanical energy conversion; Chapter 4 covers transformers; Chapters 5 and 6 cover direct current generators and motors; Chapters 7 and 8 cover synchronous generators and motors. Chapters 9 and 10 round out the motors coverage with an introduction to polyphase induction motors and single-phase motors. Finally, Chapter 11 deals with dynamics of electrics machines and Chapter 12 covers special purpoe machines. This revised second edition features updated examples for modern applications, new problems, and additional material on power electronics. An instructor's manual will accompany the main text and will be available free to adopters.

Design of analog filters

Author: Rolf Schaumann,Haiqiao Xiao,Mac Elwyn Van Valkenburg
Publisher: Oxford Univ Pr
ISBN: 9780195373943
Category: Language Arts & Disciplines
Page: 827
View: 8845

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Design of Analog Filters integrates theory and practice in order to provide a modern "how-to" approeach to design. Operational amplifiers are not assumed to be ideal but are represented by realistic models so that deviations appearing in practice can be anticipated and assessed. By pre-distorting design parameters, exact results can be obtained. High-frequency inductor-based active filter design is included, as is a discussion of noise that in many cases is the deciding issue for making a design practical. A chapter on Switched-Capacitor (SC) filters provides exact SC-design methods that build on the well-known active-RC methods discussed in earlier chapters. A concise but self-contained treatment of passive L-C ladder design is included to enable interested readers to understand the theory in a short time. Methods of implementing L-C ladders using opamp-R-C and SC circuits are discussed to obtain low-sensitivity filters. All design equations are derived in the book, starting from basic theory and opamp models. Readers who need to implement working designs as soon as possible can start directly from design methods and equations. The revised second edition now contains a chapter on noise, a comparison of active and passive indulter design, and a discussion of high-frequency active filter design. Detailed solutions along with Spice-based verifications (tests) are provided for all examples and problems. The Harris HA2542 - 2 opamps have been replaced by Texas Instruments OPA -300, both in the book and the solutions manual.

1089 oder das Wunder der Zahlen

eine Reise in die Welt der Mathematik
Author: David J. Acheson
Publisher: N.A
ISBN: 9783866470200
Page: 189
View: 8539

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Das Buch beginnt mit einem alten Zaubertrick - Man nehme eine 3-stellige Zahl, etwa 782, kehre sie um, ziehe die kleinere von der größeren ab und addiere dazu die Umkehrung. Also - 782 - 287 = 495, dann 495 + 594. Und schon ist man mitten in der Wunderwelt der Mathematik, denn das Ergebnis ist immer - 1089. Mit solchen und vielen weiteren Beispielen aus Alltag, Geschichte und Wissenschaft gelingt es David Acheson, die faszinierende Welt der Mathematik zu erschließen - ein geistreicher Überblick, eine für jeden verständliche Einführung.

Cybersecurity and Cyberwar

What Everyone Needs to Know®
Author: P.W. Singer,Allan Friedman
Publisher: Oxford University Press
ISBN: 0199364575
Category: Political Science
Page: 336
View: 4195

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A generation ago, "cyberspace" was just a term from science fiction, used to describe the nascent network of computers linking a few university labs. Today, our entire modern way of life, from communication to commerce to conflict, fundamentally depends on the Internet. And the cybersecurity issues that result challenge literally everyone: politicians wrestling with everything from cybercrime to online freedom; generals protecting the nation from new forms of attack, while planning new cyberwars; business executives defending firms from once unimaginable threats, and looking to make money off of them; lawyers and ethicists building new frameworks for right and wrong. Most of all, cybersecurity issues affect us as individuals. We face new questions in everything from our rights and responsibilities as citizens of both the online and real world to simply how to protect ourselves and our families from a new type of danger. And yet, there is perhaps no issue that has grown so important, so quickly, and that touches so many, that remains so poorly understood. In Cybersecurity and CyberWar: What Everyone Needs to Know®, New York Times best-selling author P. W. Singer and noted cyber expert Allan Friedman team up to provide the kind of easy-to-read, yet deeply informative resource book that has been missing on this crucial issue of 21st century life. Written in a lively, accessible style, filled with engaging stories and illustrative anecdotes, the book is structured around the key question areas of cyberspace and its security: how it all works, why it all matters, and what can we do? Along the way, they take readers on a tour of the important (and entertaining) issues and characters of cybersecurity, from the "Anonymous" hacker group and the Stuxnet computer virus to the new cyber units of the Chinese and U.S. militaries. Cybersecurity and CyberWar: What Everyone Needs to Know® is the definitive account on the subject for us all, which comes not a moment too soon. What Everyone Needs to Know® is a registered trademark of Oxford University Press.