This is the first book devoted exclusively to the outphasing power amplifier, covering the most recent research results on important aspects in practical design and applications. A compilation of all the proposed outphasing approaches, this is an important resource for engineers designing base station and mobile handset amplifiers, engineering managers and program managers supervising power amplifier designs, and R&D personnel in industry. The work enables you to: design microwave power amplifiers with higher efficiency and improved linearity at a lower cost; understand linearity and performance tradeoffs in microwave power amplifiers; and understand the effect of new modulation techniques on microwave power amplifiers.
Recent reforms have put tremendous new demands on the people at the top of the public service. Almost everywhere the emphasis is on doing "more, and better, with less". This study is an inquiry into how permanent secretaries around the Commonwealth see their jobs. It is based on extensive interviews and surveys of senior officials in over twenty-five Commonwealth countries.
The volume describes the chemical and physical properties of the approximately 80 known bromine compounds and ions which contain oxygen and/or nitrogen, and which may include hydrogen as well. The class of bromine-oxygen and bromine-oxygen-hydrogen compounds comprises several well-known species. Their description accounts for approximately three-quarters of the volume. The BrO radical and the BrO3 ion are the most and best studied among all binary bromine-oxygen species. BrO was recently recognized to play a role in some reaction sequences depleting the ozone concentration in the stratosphere. Bromate-ion-driven chemical oscillator systems have attracted much interest in recent decades. Thus data on single reaction steps which involve BrO3, BrO2, and the oxoacides of bromine - HBrO, HBrO2, and HBrO3 - are reviewed in detail; a comprehensive description of the oscillating systems, however, is beyond the scope of this volume. The remaining one-quarter of the volume is devoted to bromine-nitrogen and bromine-nitrogen-oxygen compounds. Bromine azide and nitrosyl bromide are the most comprehensively studied of these, accounting for almost half of this section.
Offering unparalleled coverage of infectious diseases in children and adolescents, Feigin & Cherry's Textbook of Pediatric Infectious Diseases 8th Edition, continues to provide the information you need on epidemiology, public health, preventive medicine, clinical manifestations, diagnosis, treatment, and much more. This extensively revised edition by Drs. James Cherry, Gail J. Demmler-Harrison, Sheldon L. Kaplan, William J. Steinbach, and Peter J. Hotez, offers a brand-new full-color design, new color images, new guidelines, and new content, reflecting today's more aggressive infectious and resistant strains as well as emerging and re-emerging diseases - Discusses infectious diseases according to organ system, as well as individually by microorganisms, placing emphasis on the clinical manifestations that may be related to the organism causing the disease. - Provides detailed information regarding the best means to establish a diagnosis, explicit recommendations for therapy, and the most appropriate uses of diagnostic imaging. - Features expanded information on infections in the compromised host; immunomodulating agents and their potential use in the treatment of infectious diseases; and Ebola virus. - Contains hundreds of new color images throughout, as well as new guidelines, new resistance epidemiology, and new Global Health Milestones. - Includes new chapters on Zika virus and Guillain-Barré syndrome. - Expert ConsultTM eBook version included with purchase. This enhanced eBook experience allows you to search all of the text, figures, and references from the book on a variety of devices.
Braunwald’s Heart Disease remains your indispensable source for definitive, state-of-the-art answers on every aspect of contemporary cardiology. Edited by Drs. Robert O. Bonow, Douglas L. Mann, Douglas P. Zipes, and Peter Libby, this dynamic, multimedia reference helps you apply the most recent knowledge in molecular biology and genetics, imaging, pharmacology, interventional cardiology, electrophysiology, and much more. Weekly updates online, personally selected by Dr. Braunwald, continuously keep you current on the most important new developments affecting your practice. Enhanced premium online content includes new dynamic cardiac imaging videos, heart sound recordings, and podcasts. With sweeping updates throughout, and contributions from a "who’s who" of global cardiology, Braunwald’s is the cornerstone of effective practice. Continuously access the most important new developments affecting your practice with weekly updates personally selected by Dr. Braunwald, including focused reviews, "hot off the press" commentaries, and late-breaking clinical trials. Practice with confidence and overcome your toughest challenges with advice from the top minds in cardiology today, who synthesize the entire state of current knowledge and summarize all of the most recent ACC/AHA practice guidelines. Locate the answers you need fast thanks to a user-friendly, full-color design with more than 1,200 color illustrations. Search the complete contents online at www.expertconsult.com. Stay on top of the latest advances in molecular imaging, intravascular ultrasound, cardiovascular regeneration and tissue engineering, device therapy for advanced heart failure, atrial fibrillation management, structural heart disease, Chagasic heart disease, ethics in cardiovascular medicine, the design and conduct of clinical trials, and many other timely topics. Hone your clinical skills with new dynamic cardiac imaging videos, heart sound recordings, and podcasts at www.expertconsult.com.
In many cases, the beginning engineering student is thrown into upper-level engineering courses without an adequate introduction to the basic material. This, at best, causes undue stress on the student as they feel unprepared when faced with unfamiliar material, and at worst, results in students dropping out of the program or changing majors when they discover that their chosen field of engineering is not what they thought it was. The purpose of this text is to introduce the student to a general cross-section of the field of electrical and computer engineering. The text is aimed at incoming freshmen, and as such, assumes that the reader has a limited to nonexistent background in electrical engineering and knowledge of no more than pre-calculus in the field of mathematics. By exposing students to these fields at an introductory level, early in their studies, they will have both a better idea of what to expect in later classes and a good foundation of knowledge upon which to build.
Despite its continuing popularity, the so-called standard circuit model of compound semiconductor field-effect transistors (FETs) and high electron mobility transistors (HEMTs) is shown to have a limitation for nonlinear analysis and design: it is valid only in the static limit. When the voltages and currents are time-varying, as they must be for these devices to have any practical use, the model progressively fails for higher specification circuits. This book shows how to reform the standard model to render it fully compliant with the way FETs and HEMTs actually function, thus rendering it valid dynamically. Proof-of-principle is demonstrated for several practical circuits, including a frequency doubler and amplifiers with demanding performance criteria. Methods for extracting both the reformulated model and the standard model are described, including a scheme for re-constructing from S-parameters the bias-dependent dynamic (or RF) I(V) characteristics along which devices work in real-world applications, and as needed for the design of nonlinear circuits using harmonic-balance and time-domain simulators. The book includes a historical review of how variations on the standard model theme evolved, leading up to one of the most widely used—the Angelov (or Chalmers) model.
In this book, Peter Thacher Lanfer seeks to evaluate texts that expand and explicitly interpret the expulsion narrative of Adam and Eve in Genesis beyond the biblical canon.
This far-reaching study redraws the intellectual map of the Enlightenment and boldly reassesses the legacy of that highly influential period for us today. Peter Hanns Reill argues that in the middle of the eighteenth century, a major shift occurred in the way Enlightenment thinkers conceived of nature that caused many of them to reject the prevailing doctrine of mechanism and turn to a vitalistic model to account for phenomena in natural history, the life sciences, and chemistry. As he traces the ramifications of this new way of thinking through time and across disciplines, Reill provocatively complicates our understanding of the way key Enlightenment thinkers viewed nature. His sophisticated analysis ultimately questions postmodern narratives that have assumed a monolithic Enlightenment—characterized by the dominance of instrumental reason—that has led to many of the disasters of modern life.
This book is for readers who are knowledgeable about the neurosciences and curious about brain mechanisms that produce normal and pathological social behaviour. It is a reference work that presents and reviews facts and recent findings that need to be accounted for within a coherent neuroanatomy and neurophysiology of social behaviour.
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