frequency synthesis of all digital phase locked loop



Liming Xiu Nanometer Frequency Synthesis Beyond the Phase-Locked Loop Liming Xiu Nanometer Frequency Synthesis Beyond the Phase-Locked Loop Новинка

Liming Xiu Nanometer Frequency Synthesis Beyond the Phase-Locked Loop

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Introducing a new, pioneering approach to integrated circuit design Nanometer Frequency Synthesis Beyond Phase-Locked Loop introduces an innovative new way of looking at frequency that promises to open new frontiers in modern integrated circuit (IC) design. While most books on frequency synthesis deal with the phase-locked loop (PLL), this book focuses on the clock signal. It revisits the concept of frequency, solves longstanding problems in on-chip clock generation, and presents a new time-based information processing approach for future chip design. Beginning with the basics, the book explains how clock signal is used in electronic applications and outlines the shortcomings of conventional frequency synthesis techniques for dealing with clock generation problems. It introduces the breakthrough concept of Time-Average-Frequency, presents the Flying-Adder circuit architecture for the implementation of this approach, and reveals a new circuit device, the Digital-to-Frequency Converter (DFC). Lastly, it builds upon these three key components to explain the use of time rather than level to represent information in signal processing. Provocative, inspiring, and chock-full of ideas for future innovations, the book features: A new way of thinking about the fundamental concept of clock frequency A new circuit architecture for frequency synthesis: the Flying-Adder direct period synthesis A new electronic component: the Digital-to-Frequency Converter A new information processing approach: time-based vs. level-based Examples demonstrating the power of this technology to build better, cheaper, and faster systems Written with the intent of showing readers how to think outside the box, Nanometer Frequency Synthesis Beyond the Phase-Locked Loop is a must-have resource for IC design engineers and researchers as well as anyone who would like to be at the forefront of modern circuit design.
Daniel Talbot B. Frequency Acquisition Techniques for Phase Locked Loops Daniel Talbot B. Frequency Acquisition Techniques for Phase Locked Loops Новинка

Daniel Talbot B. Frequency Acquisition Techniques for Phase Locked Loops

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How to acquire the input frequency from an unlocked state A phase locked loop (PLL) by itself cannot become useful until it has acquired the applied signal's frequency. Often, a PLL will never reach frequency acquisition (capture) without explicit assistive circuits. Curiously, few books on PLLs treat the topic of frequency acquisition in any depth or detail. Frequency Acquisition Techniques for Phase Locked Loops offers a no-nonsense treatment that is equally useful for engineers, technicians, and managers. Since mathematical rigor for its own sake can degenerate into intellectual «rigor mortis,» the author introduces readers to the basics and delivers useful information with clear language and minimal mathematics. With most of the approaches having been developed through years of experience, this completely practical guide explores methods for achieving the locked state in a variety of conditions as it examines: Performance limitations of phase/frequency detector–based phase locked loops The quadricorrelator method for both continuous and sampled modes Sawtooth ramp-and-sample phase detector and how its waveform contains frequency error information that can be extracted The benefits of a self-sweeping, self-extinguishing topology Sweep methods using quadrature mixer-based lock detection The use of digital implementations versus analog Frequency Acquisition Techniques for Phase Locked Loops is an important resource for RF/microwave engineers, in particular, circuit designers; practicing electronics engineers involved in frequency synthesis, phase locked loops, carrier or clock recovery loops, radio-frequency integrated circuit design, and aerospace electronics; and managers wanting to understand the technology of phase locked loops and frequency acquisition assistance techniques or jitter attenuating loops. Errata can be found by visiting the Book Support Site at: http://booksupport.wiley.com
William Egan F. Advanced Frequency Synthesis by Phase Lock William Egan F. Advanced Frequency Synthesis by Phase Lock Новинка

William Egan F. Advanced Frequency Synthesis by Phase Lock

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The latest frequency synthesis techniques, including sigma-delta, Diophantine, and all-digital Sigma-delta is a frequency synthesis technique that has risen in popularity over the past decade due to its intensely digital nature and its ability to promote miniaturization. A continuation of the popular Frequency Synthesis by Phase Lock, Second Edition, this timely resource provides a broad introduction to sigma-delta by pairing practical simulation results with cutting-edge research. Advanced Frequency Synthesis by Phase Lock discusses both sigma-delta and fractional-n—the still-in-use forerunner to sigma-delta—employing Simulink® models and detailed simulations of results to promote a deeper understanding. After a brief introduction, the book shows how spurs are produced at the synthesizer output by the basic process and different methods for overcoming them. It investigates how various defects in sigma-delta synthesis contribute to spurs or noise in the synthesized signal. Synthesizer configurations are analyzed, and it is revealed how to trade off the various noise sources by choosing loop parameters. Other sigma-delta synthesis architectures are then reviewed. The Simulink simulation models that provided data for the preceding discussions are described, providing guidance in making use of such models for further exploration. Next, another method for achieving wide loop bandwidth simultaneously with fine resolution—the Diophantine Frequency Synthesizer—is introduced. Operation at extreme bandwidths is also covered, further describing the analysis of synthesizers that push their bandwidths close to the sampling-frequency limit. Lastly, the book reviews a newly important technology that is poised to become widely used in high-production consumer electronics—all-digital frequency synthesis. Detailed appendices provide in-depth discussion on various stages of development, and many related resources are available for download, including Simulink models, MATLAB® scripts, spreadsheets, and executable programs. All these features make this authoritative reference ideal for electrical engineers who want to achieve an understanding of sigma-delta frequency synthesis and an awareness of the latest developments in the field.
Belorkar Ujwala A., Ladhake Siddharth A. Low Power Phase Locked Loop With Multiple Output Using VLSI Technology Belorkar Ujwala A., Ladhake Siddharth A. Low Power Phase Locked Loop With Multiple Output Using VLSI Technology Новинка

Belorkar Ujwala A., Ladhake Siddharth A. Low Power Phase Locked Loop With Multiple Output Using VLSI Technology

DESIGN AND ANALYSIS OF PHASE LOCKED LOOP WITH MULTIPLE OUTPUT USING VLSI TECHNOLOGY Dr.Ujwala A. Belorkar,Dr.Siddharth A. Ladhake. Efforts has been taken to design Low Power, phase locked loop with multiple output, using 45nm VLSI technology. The design process, at various levels, is usually evolutionary in nature. It starts with a given set of requirement. When the requirements are not met, the design has to be improved.The proposed PLL is designed and analysed using 45 nm CMOS/VLSI technology with microwind 3.1. The effective gate length required for 45 nm technology is 25nm. Low Power (0.211mwatt) phase locked loop with four multiple outputs as PLL8x, PLL4x, PLL2x, & PLL1x of 3.3 GHz,1.65 GHz, 0.825 GHz, and 0.412 GHz respectively is obtained using 45 nm VLSI technology. Thus a very high efficient, optimum area chip is designed and analysed for phase locked loop with low power of 0.211 mw and four multiple outputs.
Mohamed Nemr Review article on Solid Phase Synthesis Mohamed Nemr Review article on Solid Phase Synthesis Новинка

Mohamed Nemr Review article on Solid Phase Synthesis

The first concept of solid phase synthesis was performed by Merrifield (1) in a dipeptide synthesis from two amino acids. Not surprisingly, Solid phase synthesis did not remain limited to peptides, but also it was extended to heterocycles, so many synthesis methods in solution phase had been transferred to solid phase processes.So, solid phase organic synthesis had become very attractive route of synthesis due to its simplicity of separation of synthetic intermediates from soluble components of a reaction mixture by simple filtration and washing of the resin bound reaction product.
Lam Yulin Solid-Phase Organic Synthesis. Concepts, Strategies, and Applications Lam Yulin Solid-Phase Organic Synthesis. Concepts, Strategies, and Applications Новинка

Lam Yulin Solid-Phase Organic Synthesis. Concepts, Strategies, and Applications

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Presents both the fundamental concepts and the most recent applications in solid-phase organic synthesis With its emphasis on basic concepts, Solid-Phase Organic Synthesis guides readers through all the steps needed to design and perform successful solid-phase organic syntheses. The authors focus on the fundamentals of heterogeneous supports in the synthesis of organic molecules, explaining the use of a solid material to facilitate organic synthesis. This comprehensive text not only presents the fundamentals, but also reviews the most recent research findings and applications, offering readers everything needed to conduct their own state-of-the-art science experiments. Featuring chapters written by leading researchers in the field, Solid-Phase Organic Synthesis is divided into two parts: Part One, Concepts and Strategies, discusses the linker groups used to attach the synthesis substrate to the solid support, colorimetric tests to identify the presence of functional groups, combinatorial synthesis, and diversity-oriented synthesis. Readers will discover how solid-phase synthesis is currently used to facilitate the discovery of new molecular functionality. The final chapter discusses how using a support can change or increase reaction selectivity. Part Two, Applications, presents examples of the solid-phase synthesis of various classes of organic molecules. Chapters explore general asymmetric synthesis on a support, strategies for heterocyclic synthesis, and synthesis of radioactive organic molecules, dyes, dendrimers, and oligosaccharides. Each chapter ends with a set of conclusions that underscore the key concepts and methods. References in each chapter enable readers to investigate any topic in greater depth. With its presentation of basic concepts as well as recent findings and applications, Solid-Phase Organic Synthesis is the ideal starting point for students and researchers in organic, medicinal, and combinatorial chemistry who want to take full advantage of current solid-phase synthesis techniques.
Masoud Karimi-Ghartema Enhanced Phase-Locked Loop Structures for Power and Energy Applications Masoud Karimi-Ghartema Enhanced Phase-Locked Loop Structures for Power and Energy Applications Новинка

Masoud Karimi-Ghartema Enhanced Phase-Locked Loop Structures for Power and Energy Applications

Filling the gap in the market dedicated to PLL structures for power systems Internationally recognized expert Dr. Masoud Karimi-Ghartemani brings over twenty years of experience working with PLL structures to Enhanced Phase-Locked Loop Structures for Power and Energy Applications, the only book on the market specifically dedicated to PLL architectures as they apply to power engineering. As technology has grown and spread to new devices, PLL has increased in significance for power systems and the devices that connect with the power grid. This book discusses the PLL structures that are directly applicable to power systems using simple language, making it easily digestible for a wide audience of engineers, technicians, and graduate students. Enhanced phase-locked loop (EPLL) has become the most widely utilized architecture over the past decade, and many books lack explanation of the structural differences between PLL and EPLL. This book discusses those differences and also provides detailed instructions on using EPLL for both single-phase applications and three-phase applications. The book’s major topics include: A basic look at PLL and its standard structure A full explanation of EPLL EPLL extensions and modifications Digital implementation of EPLL Extensions of EPLL to three-phase structures Dr. Karimi-Ghartemani provides basic analysis that helps readers understand each of the structures presented without requiring complicated mathematical proofs. His book is filled with illustrated examples and simulations that connect theory to the real world, making Enhanced Phase-Locked Loop Structures for Power and Energy Applications an ideal reference for anyone working with inverters, rectifiers, and related technologies.
Luca Corradini Digital Control of High-Frequency Switched-Mode Power Converters Luca Corradini Digital Control of High-Frequency Switched-Mode Power Converters Новинка

Luca Corradini Digital Control of High-Frequency Switched-Mode Power Converters

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This book is focused on the fundamental aspects of analysis, modeling and design of digital control loops around high-frequency switched-mode power converters in a systematic and rigorous manner Comprehensive treatment of digital control theory for power converters Verilog and VHDL sample codes are provided Enables readers to successfully analyze, model, design, and implement voltage, current, or multi-loop digital feedback loops around switched-mode power converters Practical examples are used throughout the book to illustrate applications of the techniques developed Matlab examples are also provided
Clayton Paul R. Inductance. Loop and Partial Clayton Paul R. Inductance. Loop and Partial Новинка

Clayton Paul R. Inductance. Loop and Partial

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The only resource devoted Solely to Inductance Inductance is an unprecedented text, thoroughly discussing «loop» inductance as well as the increasingly important «partial» inductance. These concepts and their proper calculation are crucial in designing modern high-speed digital systems. World-renowned leader in electromagnetics Clayton Paul provides the knowledge and tools necessary to understand and calculate inductance. Unlike other texts, Inductance provides all the details about the derivations of the inductances of various inductors, as well as: Fills the need for practical knowledge of partial inductance, which is essential to the prediction of power rail collapse and ground bounce problems in high-speed digital systems Provides a needed refresher on the topics of magnetic fields Addresses a missing link: the calculation of the values of the various physical constructions of inductors—both intentional inductors and unintentional inductors—from basic electromagnetic principles and laws Features the detailed derivation of the loop and partial inductances of numerous configurations of current-carrying conductors With the present and increasing emphasis on high-speed digital systems and high-frequency analog systems, it is imperative that system designers develop an intimate understanding of the concepts and methods in this book. Inductance is a much-needed textbook designed for senior and graduate-level engineering students, as well as a hands-on guide for working engineers and professionals engaged in the design of high-speed digital and high-frequency analog systems.
Clayton Paul R. Inductance. Loop and Partial Clayton Paul R. Inductance. Loop and Partial Новинка

Clayton Paul R. Inductance. Loop and Partial

11233.75 руб. или Купить в рассрочку!
The only resource devoted Solely to Inductance Inductance is an unprecedented text, thoroughly discussing «loop» inductance as well as the increasingly important «partial» inductance. These concepts and their proper calculation are crucial in designing modern high-speed digital systems. World-renowned leader in electromagnetics Clayton Paul provides the knowledge and tools necessary to understand and calculate inductance. Unlike other texts, Inductance provides all the details about the derivations of the inductances of various inductors, as well as: Fills the need for practical knowledge of partial inductance, which is essential to the prediction of power rail collapse and ground bounce problems in high-speed digital systems Provides a needed refresher on the topics of magnetic fields Addresses a missing link: the calculation of the values of the various physical constructions of inductors—both intentional inductors and unintentional inductors—from basic electromagnetic principles and laws Features the detailed derivation of the loop and partial inductances of numerous configurations of current-carrying conductors With the present and increasing emphasis on high-speed digital systems and high-frequency analog systems, it is imperative that system designers develop an intimate understanding of the concepts and methods in this book. Inductance is a much-needed textbook designed for senior and graduate-level engineering students, as well as a hands-on guide for working engineers and professionals engaged in the design of high-speed digital and high-frequency analog systems.
Pei Dang Time-Frequency Analysis Based on Mono-Components Pei Dang Time-Frequency Analysis Based on Mono-Components Новинка

Pei Dang Time-Frequency Analysis Based on Mono-Components

In this study, we define phase derivatives of analytic signals through non-tangential boundary limits, and consequently raise a new type of derivatives called Hardy-Sobolev derivatives for signals in the related Sobolev spaces. We prove that signals in the Sobolev spaces have well-defined phase derivatives that reduce to the classical ones when the latter exist. Based on the study of several types of phase derivatives and their properties, we mainly work on the following three subjects: (1)We extend the existing relations between the instantaneous frequency and the Fourier frequency and the related ones for smooth signals to those in the Sobolev spaces. (2) Based on the phase derivative theory and the recent result of positivity of phase derivatives of boundary limits of inner functions the theoretical foundation of all-pass filters and signals of minimum phase is established. Both the discrete and continuous signals cases are rigorously treated. (3) We study a particular type of time-frequency distribution exclusively suitable for mono-components, called transient time-frequency distribution(TTFD). For multi-components we carry on a corresponding study.
Philippe Feyel Loop-shaping Robust Control Philippe Feyel Loop-shaping Robust Control Новинка

Philippe Feyel Loop-shaping Robust Control

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The loop-shaping approach consists of obtaining a specification in relation to the open loop of the control from specifications regarding various closed loop transfers, because it is easier to work on a single transfer (in addition to the open loop) than on a multitude of transfers (various loopings such as set point/error, disturbance/error, disturbance/control, etc.). The simplicity and flexibility of the approach make it very well adapted to the industrial context. This book presents the loop-shaping approach in its entirety, starting with the declension of high-level specifications into a loop-shaping specification. It then shows how it is possible to fully integrate this approach for the calculation of robust and efficient correctors with the help of existing techniques, which have already been industrially tried and tested, such as H-infinity synthesis. The concept of a gap metric (or distance between models) is also presented along with its connection with the prime factors of a set of systems shaping a ball of models, as well as its connections with robust synthesis by loop-shaping, in order to calculate efficient and robust correctors. As H-infinity loop-shaping is often demanding in terms of the order of correctors, the author also looks at loop-shaping synthesis under an ordering constraint. Two further promising lines of research are presented, one using stochastic optimization, and the other non-smooth optimization. Finally, the book introduces the concept of correction with two degrees of freedom via the formalism of prime factorization. Avenues for future work are also opened up by the author as he discusses the main drawbacks to loop-shaping synthesis, and how these issues can be solved using modern optimization techniques in an increasingly competitive industrial context, in accordance with ever more complex sets of functional specifications, associated with increasingly broad conditions of usage. Contents Introduction 1. The Loop-shaping Approach 2. Loop-shaping H-infinity Synthesis 3. Two Degrees-of-Freedom Controllers 4. Extensions and Optimizations Appendix 1. Demonstrative Elements on the Optimization of Robust Stabilization with Order Constraint Appendix 2. Establishment of Real LMIs for the Quasi-Convex Problem of Optimization of the Weighting Functions About the Authors Philippe Feyel is an R&D Engineer for the high-tech company Sagem Défense Sécurité, part of the defence and security business of the SAFRAN group, in Paris, France.
Mario Clerici G. Liquid Phase Oxidation via Heterogeneous Catalysis. Organic Synthesis and Industrial Applications Mario Clerici G. Liquid Phase Oxidation via Heterogeneous Catalysis. Organic Synthesis and Industrial Applications Новинка

Mario Clerici G. Liquid Phase Oxidation via Heterogeneous Catalysis. Organic Synthesis and Industrial Applications

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Sets the stage for environmentally friendly industrial organic syntheses From basic principles to new and emerging industrial applications, this book offers comprehensive coverage of heterogeneous liquid-phase selective oxidation catalysis. It fully examines the synthesis, characterization, and application of catalytic materials for environmentally friendly organic syntheses. Readers will find coverage of all the important classes of catalysts, with an emphasis on their stability and reusability. Liquid Phase Oxidation via Heterogeneous Catalysis features contributions from an international team of leading chemists representing both industry and academia. The book begins with a chapter on environmentally benign oxidants and then covers: Selective oxidations catalyzed by TS-1 and other metal-substituted zeolites Selective catalytic oxidation over ordered nanoporous metallo-aluminophosphates Selective oxidations catalyzed by mesoporous metal-silicates Liquid phase oxidation of organic compounds by supported metal-based catalysts Selective liquid phase oxidations in the presence of supported polyoxometalates Selective oxidations catalyzed by supported metal complexes Liquid phase oxidation of organic compounds by metal-organic frameworks Heterogeneous photocatalysis for selective oxidations with molecular oxygen All the chapters dedicated to specific types of catalysts follow a similar organization and structure, making it easy to compare the advantages and disadvantages of different catalysts. The final chapter examines the latest industrial applications, such as the production of catechol and hydroquinone, cyclohexanone oxime, and propylene oxide. With its unique focus on liquid phase heterogeneous oxidation catalysis, this book enables researchers in organic synthesis and oxidation catalysis to explore and develop promising new catalytic materials and synthetic routes for a broad range of industrial applications.
Peter J. H. Scott Solid-Phase Organic Syntheses, Volume 2. Solid-Phase Palladium Chemistry Peter J. H. Scott Solid-Phase Organic Syntheses, Volume 2. Solid-Phase Palladium Chemistry Новинка

Peter J. H. Scott Solid-Phase Organic Syntheses, Volume 2. Solid-Phase Palladium Chemistry

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Integrates solid-phase organic synthesis with palladium chemistry The Wiley Series on Solid-Phase Organic Syntheses keeps researchers current with major accomplishments in solid-phase organic synthesis, providing full experimental details. Following the validated, tested, and proven experimental procedures, readers can easily perform a broad range of complex syntheses needed for their own experiments and industrial applications. The series is conveniently organized into themed volumes according to the specific type of synthesis. This second volume in the series focuses on palladium chemistry in solid-phase synthesis, exploring palladium catalysts and reactions, procedures for preparation and utilization, ligands, and linker reactions. The first part of the volume offers a comprehensive overview of the field. Next, the chapters are organized into three parts: Part Two: Palladium-Mediated Solid-Phase Organic Syntheses Part Three: Immobilized Catalysts and Ligands Part Four: Palladium-Mediated Multifunctional Cleavage Each chapter is written by one or more leading international experts in palladium chemistry. Their contributions reflect a thorough examination and review of the current literature as well as their own first-hand laboratory experience. References at the end of each chapter serve as a gateway to the field's literature. The introduction of palladium-mediated, cross-coupling reactions more than thirty years ago revolutionized the science of carbon-carbon bond formation. It has now become a cornerstone of today's synthetic organic chemistry laboratory. With this volume, researchers in organic and medicinal chemistry have access to a single resource that explains the fundamentals of palladium chemistry in solid-phase synthesis and sets forth clear, step-by-step instructions for conducting their own syntheses.
Venceslav Kroupa F. Frequency Stability. Introduction and Applications Venceslav Kroupa F. Frequency Stability. Introduction and Applications Новинка

Venceslav Kroupa F. Frequency Stability. Introduction and Applications

An in-depth look at the theory and applications of frequency stability An understanding of the acquisition of stable frequency is essential for anyone who needs to solve noise problems in wireless communications. This book offers a thorough introduction to the principles and applications of frequency stability, arming practicing engineers with the tools they need to minimize noise in systems and devices that affect everyday communications for millions of people. With an emphasis on both practical and scientific points of view, Frequency Stability: Introduction and Applications examines frequency and time fluctuations in resonators, as well as the stability of both standard and practical microwave oscillators. It explains noise properties of building circuit blocks, introducing time domain properties and how they relate to noise spectral densities. Including a special chapter devoted to the design and properties of phase locked loops—a crucial topic for frequency synthesizers—the book also: Examines in detail L/F noise, showing how power losses in the propagation material extend over a long period of time Covers sapphire, optoelectronics, MW, and ring oscillators with the discussion of noise in delay-line oscillators with lasers Offers an extended treatment of phase noise in semiconductors and amplifiers based on Van der Ziel investigations Emphasizes the modified Allan variance in the time domain, including exact computations Outlines the relationship between resonator frequency and output phase noises via the feedback theory Featuring numerous tables with actual data, Frequency Stability: Introduction and Applications is an invaluable guide for engineers wishing to rein in acoustic and electromagnetic interference in modern communications.
Venu Yarlagadda, R.M.Rao K., V.Sanker Ram B. Implementation Of Control Circuit Of 1-PH SVC Using Microcontroller Venu Yarlagadda, R.M.Rao K., V.Sanker Ram B. Implementation Of Control Circuit Of 1-PH SVC Using Microcontroller Новинка

Venu Yarlagadda, R.M.Rao K., V.Sanker Ram B. Implementation Of Control Circuit Of 1-PH SVC Using Microcontroller

This book devotes towards the physical realisation of prototype Design, Fabrication, Testing and control of prototype single phase Static Var Compensators (SVC).Prototype working model of single phase SVC being designed and fabricated in the laboratory. Single Machine Load Bus (SMLB) or Single Machine Single Bus (SMSB) Test system have been developed in the laboratory and tested without and with controller in open loop and closed loop modes (using microcontroller). A single machine single load system (SMSL) is setup in the laboratory with an Alternator feeding a single phase Induction motor. In the first case the impact of SVC on bus voltage with open loop mode of control is observed. Secondly an automatic control circuit is implemented using LPC 2148 Microcontroller. Test system is tested with automatic control circuit and results have been presented.
Swapna Suresh Multi-Step Synthesis of Solid Support with Protected 5.-Aminouridine Swapna Suresh Multi-Step Synthesis of Solid Support with Protected 5.-Aminouridine Новинка

Swapna Suresh Multi-Step Synthesis of Solid Support with Protected 5.-Aminouridine

During my M.S. thesis work I was involved in a multistep synthesis of solid support bearing a modified nucleoside for automated synthesis of siRNAs. First, I developed a three-step synthesis of protected 5'-amino uridine from uridine. Next I prepared the 3'-succinate of 5'-amino uridine in a one-pot two-step synthesis and attached it to a solid support via a succinamide linker. I had analyzed and characterized all new compounds using NMR techniques. Others in our laboratory used this solid support for synthesis of amide-modified siRNAs. We anticipate that the amide linkages will facilitate crossing the cellular membrane and improve nuclease resistance, biodistribution and pharmacokinetics of modified siRNAs.
Almudena Suarez Analysis and Design of Autonomous Microwave Circuits Almudena Suarez Analysis and Design of Autonomous Microwave Circuits Новинка

Almudena Suarez Analysis and Design of Autonomous Microwave Circuits

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Presents simulation techniques that substantially increase designers' control over the oscillationin autonomous circuits This book facilitates a sound understanding of the free-running oscillation mechanism, the start-up from the noise level, and the establishment of the steady-state oscillation. It deals with the operation principles and main characteristics of free-running and injection-locked oscillators, coupled oscillators, and parametric frequency dividers. Analysis and Design of Autonomous Microwave Circuits provides: An exploration of the main nonlinear-analysis methods, with emphasis on harmonic balance and envelope transient methods Techniques for the efficient simulation of the most common autonomous regimes A presentation and comparison of the main stability-analysis methods in the frequency domain A detailed examination of the instabilization mechanisms that delimit the operation bands of autonomous circuits Coverage of techniques used to eliminate common types of undesired behavior, such as spurious oscillations, hysteresis, and chaos A thorough presentation of the oscillator phase noise A comparison of the main methodologies of phase-noise analysis Techniques for autonomous circuit optimization, based on harmonic balance A consideration of different design objectives: presetting the oscillation frequency and output power, increasing efficiency, modifying the transient duration, and imposing operation bands Analysis and Design of Autonomous Microwave Circuits is a valuable resource for microwave designers, oscillator designers, and graduate students in RF microwave design.
Cossy Janine Modern Tools for the Synthesis of Complex Bioactive Molecules Cossy Janine Modern Tools for the Synthesis of Complex Bioactive Molecules Новинка

Cossy Janine Modern Tools for the Synthesis of Complex Bioactive Molecules

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All the latest tools needed to plan and perform the synthesis of complex bioactive molecules Focusing on organic, organometallic, and bio-oriented processes, this book explores the impact and use of the latest synthetic tools for the synthesis of complex biologically active compounds. Readers will discover step by step how these synthetic tools have provided new, elegant solutions to many synthetic puzzles. Moreover, they will discover innovative methods that make it possible to control the exact connectivity of atoms within a molecule in order to set precise three-dimensional arrangements. Modern Tools for the Synthesis of Complex Bioactive Molecules features sixteen chapters, each one written by one or more leading experts in organic synthesis from around the world. It covers a broad range of topics that enable readers to take advantage of the latest methods for synthesizing complex molecules, including: Modern catalysis, emphasizing key transformations such as C-H functionalizations, cross-couplings, gold-catalyzed reactions, metathesis-based syntheses, and asymmetric organocatalysis Eco-compatible transformations, including rearrangements and domino reactions Tools for the synthesis of carbohydrates and alkaloids New techniques, including the use of fluorous tags and engineered biosynthesis The last two chapters explore target- and diversity-oriented organic synthesis as well as the use of DNA-based asymmetric catalysis, which are all promising tools for the successful synthesis of complex bioactive molecules. Modern Tools for the Synthesis of Complex Bioactive Molecules is ideal for students and researchers who need to plan and perform the synthesis of complex molecules as efficiently as possible. The book's expert advice will help these readers quickly resolve a broad range of problems that can arise in organic syntheses.
SELCUK CALIMSIZ Total Synthesis of Callipeltin E and Towards Papuamide B SELCUK CALIMSIZ Total Synthesis of Callipeltin E and Towards Papuamide B Новинка

SELCUK CALIMSIZ Total Synthesis of Callipeltin E and Towards Papuamide B

Callipeltins and Papuamides -novel families of cyclic depsipeptides- were shown to possess potent anti-HIV activity as well as cytotoxicity against several multidrug resistant cancer cell lines. The novel structural features and diverse biological effects of these peptides metabolites have generated considerable interest among synthetic chemistry groups. In this book, discovery of the lanthanide catalyzed transamidation of Fmoc protected lactams, solid-phase synthesis and configurational reassignment of Callipeltin E, synthesis of N-Fmoc- (2S,3S,4R)-3,4-dimethylglutamine and an efficient method for the on-resin synthesis and macrocylization of a simplified Papuamide B model system are summarized.
Manuel Servin Fringe Pattern Analysis for Optical Metrology. Theory, Algorithms, and Applications Manuel Servin Fringe Pattern Analysis for Optical Metrology. Theory, Algorithms, and Applications Новинка

Manuel Servin Fringe Pattern Analysis for Optical Metrology. Theory, Algorithms, and Applications

13470.37 руб. или Купить в рассрочку!
The main objective of this book is to present the basic theoretical principles and practical applications for the classical interferometric techniques and the most advanced methods in the field of modern fringe pattern analysis applied to optical metrology. A major novelty of this work is the presentation of a unified theoretical framework based on the Fourier description of phase shifting interferometry using the Frequency Transfer Function (FTF) along with the theory of Stochastic Process for the straightforward analysis and synthesis of phase shifting algorithms with desired properties such as spectral response, detuning and signal-to-noise robustness, harmonic rejection, etc.
Pong Chu P. Embedded SoPC Design with Nios II Processor and VHDL Examples Pong Chu P. Embedded SoPC Design with Nios II Processor and VHDL Examples Новинка

Pong Chu P. Embedded SoPC Design with Nios II Processor and VHDL Examples

10329.02 руб. или Купить в рассрочку!
The book is divided into four major parts. Part I covers HDL constructs and synthesis of basic digital circuits. Part II provides an overview of embedded software development with the emphasis on low-level I/O access and drivers. Part III demonstrates the design and development of hardware and software for several complex I/O peripherals, including PS2 keyboard and mouse, a graphic video controller, an audio codec, and an SD (secure digital) card. Part IV provides three case studies of the integration of hardware accelerators, including a custom GCD (greatest common divisor) circuit, a Mandelbrot set fractal circuit, and an audio synthesizer based on DDFS (direct digital frequency synthesis) methodology. The book utilizes FPGA devices, Nios II soft-core processor, and development platform from Altera Co., which is one of the two main FPGA manufactures. Altera has a generous university program that provides free software and discounted prototyping boards for educational institutions (details at http://www.altera.com/university). The two main educational prototyping boards are known as DE1 ($99) and DE2 ($269). All experiments can be implemented and tested with these boards. A board combined with this book becomes a “turn-key” solution for the SoPC design experiments and projects. Most HDL and C codes in the book are device independent and can be adapted by other prototyping boards as long as a board has similar I/O configuration.
V. Nenajdenko Isocyanide Chemistry. Applications in Synthesis and Material Science V. Nenajdenko Isocyanide Chemistry. Applications in Synthesis and Material Science Новинка

V. Nenajdenko Isocyanide Chemistry. Applications in Synthesis and Material Science

2107.27 руб. или Купить в рассрочку!
The efficacy of isocyanide reactions in the synthesis of natural or naturallike products has resulted in a renaissance of isocyanide chemistry. Now isocyanides are widely used in different branches of organic, inorganic, coordination, combinatorial and medicinal chemistry. This invaluable reference is the only book to cover the topic in such depth, presenting all aspects of synthetic isonitrile chemistry. The highly experienced and internationally renowned editor has brought together an equally distinguished team of authors who cover multicomponent reactions, isonitriles in total synthesis, isonitriles in polymer chemistry and much more.
Kanishka Biswas Essentials of Inorganic Materials Synthesis Kanishka Biswas Essentials of Inorganic Materials Synthesis Новинка

Kanishka Biswas Essentials of Inorganic Materials Synthesis

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This compact handbook describes all the important methods of synthesis employed today for synthesizing inorganic materials. Some features: Focuses on modern inorganic materials with applications in nanotechnology, energy materials, and sustainability Synthesis is a crucial component of materials science and technology; this book provides a simple introduction as well as an updated description of methods Written in a very simple style, providing references to the literature to get details of the methods of preparation when required
Andrew Hughes B. Amino Acids, Peptides and Proteins in Organic Chemistry, Building Blocks, Catalysis and Coupling Chemistry Andrew Hughes B. Amino Acids, Peptides and Proteins in Organic Chemistry, Building Blocks, Catalysis and Coupling Chemistry Новинка

Andrew Hughes B. Amino Acids, Peptides and Proteins in Organic Chemistry, Building Blocks, Catalysis and Coupling Chemistry

17042.36 руб. или Купить в рассрочку!
This is the third of five books in the Amino Acids, Peptides and Proteins in Organic Synthesis series. Closing a gap in the literature, this is the only series to cover this important topic in organic and biochemistry. Drawing upon the combined expertise of the international «who's who» in amino acid research, these volumes represent a real benchmark for amino acid chemistry, providing a comprehensive discussion of the occurrence, uses and applications of amino acids and, by extension, their polymeric forms, peptides and proteins. The practical value of each volume is heightened by the inclusion of experimental procedures. The 5 volumes cover the following topics: Volume 1: Origins and Synthesis of Amino Acids Volume 2: Modified Amino Acids, Organocatalysis and Enzymes Volume 3: Building Blocks, Catalysis and Coupling Chemistry Volume 4: Protection Reactions, Medicinal Chemistry, Combinatorial Synthesis Volume 5: Analysis and Function of Amino Acids and Peptides This third volume in the series presents an in depth account of recent developments in the (bio-)synthesis of amino acids and peptides. Divided into two parts, the first section deals with amino acids as building blocks, including the generation of alpha-amino acids, beta-lactams, and heterocycles. The second section is devoted to the synthesis of peptides, with the focus on solid phase synthesis. However, solution phase peptide synthesis is covered as well, as are topics such as coupling reagents, chemical ligation, peptide purification and automation. Originally planned as a six volume series, Amino Acids, Peptides and Proteins in Organic Chemistry now completes with five volumes but remains comprehensive in both scope and coverage. Further information about the 5 Volume Set and purchasing details can be viewed here.
Yves Huttel Gas-Phase Synthesis of Nanoparticles Yves Huttel Gas-Phase Synthesis of Nanoparticles Новинка

Yves Huttel Gas-Phase Synthesis of Nanoparticles

13767.62 руб. или Купить в рассрочку!
The first overview of this topic begins with some historical aspects and a survey of the principles of the gas aggregation method. The second part covers modifications of this method resulting in different specialized techniques, while the third discusses the post-growth treatment that can be applied to the nanoparticles. The whole is rounded off by a review of future perspectives and the challenges facing the scientific and industrial communities. An excellent resource for anyone working with the synthesis of nanoparticles, both in academia and industry.
Andrew Hughes B. Amino Acids, Peptides and Proteins in Organic Chemistry, Building Blocks, Catalysis and Coupling Chemistry Andrew Hughes B. Amino Acids, Peptides and Proteins in Organic Chemistry, Building Blocks, Catalysis and Coupling Chemistry Новинка

Andrew Hughes B. Amino Acids, Peptides and Proteins in Organic Chemistry, Building Blocks, Catalysis and Coupling Chemistry

17265.3 руб. или Купить в рассрочку!
This is the third of five books in the Amino Acids, Peptides and Proteins in Organic Synthesis series. Closing a gap in the literature, this is the only series to cover this important topic in organic and biochemistry. Drawing upon the combined expertise of the international «who's who» in amino acid research, these volumes represent a real benchmark for amino acid chemistry, providing a comprehensive discussion of the occurrence, uses and applications of amino acids and, by extension, their polymeric forms, peptides and proteins. The practical value of each volume is heightened by the inclusion of experimental procedures. The 5 volumes cover the following topics: Volume 1: Origins and Synthesis of Amino Acids Volume 2: Modified Amino Acids, Organocatalysis and Enzymes Volume 3: Building Blocks, Catalysis and Coupling Chemistry Volume 4: Protection Reactions, Medicinal Chemistry, Combinatorial Synthesis Volume 5: Analysis and Function of Amino Acids and Peptides This third volume in the series presents an in depth account of recent developments in the (bio-)synthesis of amino acids and peptides. Divided into two parts, the first section deals with amino acids as building blocks, including the generation of alpha-amino acids, beta-lactams, and heterocycles. The second section is devoted to the synthesis of peptides, with the focus on solid phase synthesis. However, solution phase peptide synthesis is covered as well, as are topics such as coupling reagents, chemical ligation, peptide purification and automation. Originally planned as a six volume series, Amino Acids, Peptides and Proteins in Organic Chemistry now completes with five volumes but remains comprehensive in both scope and coverage. Further information about the 5 Volume Set and purchasing details can be viewed here.
Oleg Kolodiazhnyi I. Asymmetric Synthesis in Organophosphorus Chemistry. Synthetic Methods, Catalysis and Applications Oleg Kolodiazhnyi I. Asymmetric Synthesis in Organophosphorus Chemistry. Synthetic Methods, Catalysis and Applications Новинка

Oleg Kolodiazhnyi I. Asymmetric Synthesis in Organophosphorus Chemistry. Synthetic Methods, Catalysis and Applications

15256.01 руб. или Купить в рассрочку!
Authored by one of the leading experts in the field, this is the only comprehensive overview of chiral organophosphorus compounds, from asymmetric synthesis to catalysis and pharmacological applications. As such, this unique reference covers the chemical background as well as spectroscopical analysis of phosphorus compounds, and thoroughly describes all the various synthetic strategies for these substances. Metal-, organo- and biocatalyzed reactions for the introduction of phosphorus are explained as are asymmetric oxidation and reduction methods for the preparation of all possible oxidation states of phosphorus. The text also includes industrial applications for these compounds. Of particular interest to chemists working in the field of asymmetric synthesis, as well as to the pharmaceutical industry due to the increasing number of phosphorous-containing drugs.
Andrew Rushton VHDL for Logic Synthesis Andrew Rushton VHDL for Logic Synthesis Новинка

Andrew Rushton VHDL for Logic Synthesis

7234.09 руб. или Купить в рассрочку!
Making VHDL a simple and easy-to-use hardware description language Many engineers encountering VHDL (very high speed integrated circuits hardware description language) for the first time can feel overwhelmed by it. This book bridges the gap between the VHDL language and the hardware that results from logic synthesis with clear organisation, progressing from the basics of combinational logic, types, and operators; through special structures such as tristate buses, register banks and memories, to advanced themes such as developing your own packages, writing test benches and using the full range of synthesis types. This third edition has been substantially rewritten to include the new VHDL-2008 features that enable synthesis of fixed-point and floating-point hardware. Extensively updated throughout to reflect modern logic synthesis usage, it also contains a complete case study to demonstrate the updated features. Features to this edition include: a common VHDL subset which will work across a range of different synthesis systems, targeting a very wide range of technologies a design style that results in long design lifetimes, maximum design reuse and easy technology retargeting a new chapter on a large scale design example based on a digital filter from design objective and design process, to testing strategy and test benches a chapter on writing test benches, with everything needed to implement a test-based design strategy extensive coverage of data path design, including integer, fixed-point and floating-point arithmetic, logic circuits, shifters, tristate buses, RAMs, ROMs, state machines, and decoders Focused specifically on logic synthesis, this book is for professional hardware engineers using VHDL for logic synthesis, and digital systems designers new to VHDL but familiar with digital systems. It offers all the knowledge and tools needed to use VHDL for logic synthesis. Organised in themed chapters and with a comprehensive index, this complete reference will also benefit postgraduate students following courses on microelectronics or VLSI/ semiconductors and digital design.
Mohammed Ferdjallah Introduction to Digital Systems. Modeling, Synthesis, and Simulation Using VHDL Mohammed Ferdjallah Introduction to Digital Systems. Modeling, Synthesis, and Simulation Using VHDL Новинка

Mohammed Ferdjallah Introduction to Digital Systems. Modeling, Synthesis, and Simulation Using VHDL

9823.52 руб. или Купить в рассрочку!
A unique guide to using both modeling and simulation in digital systems design Digital systems design requires rigorous modeling and simulation analysis that eliminates design risks and potential harm to users. Introduction to Digital Systems: Modeling, Synthesis, and Simulation Using VHDL introduces the application of modeling and synthesis in the effective design of digital systems and explains applicable analytical and computational methods. Through step-by-step explanations and numerous examples, the author equips readers with the tools needed to model, synthesize, and simulate digital principles using Very High Speed Integrated Circuit Hardware Description Language (VHDL) programming. Extensively classroom-tested to ensure a fluid presentation, this book provides a comprehensive overview of the topic by integrating theoretical principles, discrete mathematical models, computer simulations, and basic methods of analysis. Topical coverage includes: Digital systems modeling and simulation Integrated logic Boolean algebra and logic Logic function optimization Number systems Combinational logic VHDL design concepts Sequential and synchronous sequential logic Each chapter begins with learning objectives that outline key concepts that follow, and all discussions conclude with problem sets that allow readers to test their comprehension of the presented material. Throughout the book, VHDL sample codes are used to illustrate circuit design, providing guidance not only on how to learn and master VHDL programming, but also how to model and simulate digital circuits. Introduction to Digital Systems is an excellent book for courses in modeling and simulation, operations research, engineering, and computer science at the upper-undergraduate and graduate levels. The book also serves as a valuable resource for researchers and practitioners in the fields of operations research, mathematical modeling, simulation, electrical engineering, and computer science.
Kathy Lu Nanoparticulate Materials. Synthesis, Characterization, and Processing Kathy Lu Nanoparticulate Materials. Synthesis, Characterization, and Processing Новинка

Kathy Lu Nanoparticulate Materials. Synthesis, Characterization, and Processing

12279.93 руб. или Купить в рассрочку!
Serving as the only systematic and comprehensive treatment on the topic of nanoparticle-based materials, this book covers synthesis, characterization, assembly, shaping and sintering of all types of nanoparticles including metals, ceramics, and semiconductors. A single-authored work, it is suitable as a graduate-level text in nanomaterials courses.
Mohammed Ferdjallah Introduction to Digital Systems. Modeling, Synthesis, and Simulation Using VHDL Mohammed Ferdjallah Introduction to Digital Systems. Modeling, Synthesis, and Simulation Using VHDL Новинка

Mohammed Ferdjallah Introduction to Digital Systems. Modeling, Synthesis, and Simulation Using VHDL

9952.05 руб. или Купить в рассрочку!
A unique guide to using both modeling and simulation in digital systems design Digital systems design requires rigorous modeling and simulation analysis that eliminates design risks and potential harm to users. Introduction to Digital Systems: Modeling, Synthesis, and Simulation Using VHDL introduces the application of modeling and synthesis in the effective design of digital systems and explains applicable analytical and computational methods. Through step-by-step explanations and numerous examples, the author equips readers with the tools needed to model, synthesize, and simulate digital principles using Very High Speed Integrated Circuit Hardware Description Language (VHDL) programming. Extensively classroom-tested to ensure a fluid presentation, this book provides a comprehensive overview of the topic by integrating theoretical principles, discrete mathematical models, computer simulations, and basic methods of analysis. Topical coverage includes: Digital systems modeling and simulation Integrated logic Boolean algebra and logic Logic function optimization Number systems Combinational logic VHDL design concepts Sequential and synchronous sequential logic Each chapter begins with learning objectives that outline key concepts that follow, and all discussions conclude with problem sets that allow readers to test their comprehension of the presented material. Throughout the book, VHDL sample codes are used to illustrate circuit design, providing guidance not only on how to learn and master VHDL programming, but also how to model and simulate digital circuits. Introduction to Digital Systems is an excellent book for courses in modeling and simulation, operations research, engineering, and computer science at the upper-undergraduate and graduate levels. The book also serves as a valuable resource for researchers and practitioners in the fields of operations research, mathematical modeling, simulation, electrical engineering, and computer science.
Chao-Jun Li Silver Catalysis in Organic Synthesis, 2 Volume Set Chao-Jun Li Silver Catalysis in Organic Synthesis, 2 Volume Set Новинка

Chao-Jun Li Silver Catalysis in Organic Synthesis, 2 Volume Set

26702.16 руб. или Купить в рассрочку!
Covers all the aspects of the recent achievements in silver catalyzed reactions Silver catalysis has emerged as a powerful tool in the field of organic synthesis. This comprehensive book systematically explores the unique performance of silver catalysis, introducing all the recent progress of silver catalysis in organic synthesis. It clearly emphasizes the unique features of silver catalysis and provides the reaction mechanism involved. This two-volume book also provides vivid schematics and tables throughout to enhance the accessibility to the relevant theory and mechanisms. Silver Catalysis in Organic Synthesis begins with an introduction to Silver Chemistry before moving on to chapters covering: Silver-Catalyzed Cycloaddition Reactions; Silver-Catalyzed Cyclizations; Silver-Mediated Radical Reactions; Silver-Mediated Fluorination, Perfluoroalkylation and Trifluoromethylthiolation Reactions; Coupling Reactions and C-H Functionalization; Silver-Catalyzed CO2 Incorporation; Silver-Catalyzed Carbene, Nitrene, and Silylene Transfer Reactions; Asymmetric Silver-Catalyzed Reactions; Silver-Catalyzed Reduction and Oxidation of Aldehydes and Their Derivatives; Silver Complexes in Organic Transformations; and Silver Nanoparticles in Organic Transformations. -Covers recently developed organic reactions catalyzed by silver, along with their reaction mechanism -Introduces many new reactions and mechanisms related to silver catalysis -Offers professionals and newcomers in the related fields a survey of new advances in silver catalysis in organic synthesis Silver Catalysis in Organic Synthesis will appeal to a wide readership including chemists, biochemists, pharmaceutical scientists, biomedical researchers, agriculture scientists, and graduate students in the related fields.
Mark Peters Membrane Process Design Using Residue Curve Maps Mark Peters Membrane Process Design Using Residue Curve Maps Новинка

Mark Peters Membrane Process Design Using Residue Curve Maps

11609.17 руб. или Купить в рассрочку!
Design and Synthesis of Membrane Separation Processes provides a novel method of design and synthesis for membrane separation. While the main focus of the book is given to gas separation and pervaporation membranes, the theory has been developed in such a way that it is general and valid for any type of membrane. The method, which uses a graphical technique, allows one to calculate and visualize the change in composition of the retentate (non-permeate) phase. This graphical approach is based on Membrane Residue Curve Maps. One of the strengths of this approach is that it is exactly analogous to the method of Residue Curve Maps that has proved so successful in distillation system synthesis and design.
Jie Jack Li Innovative Drug Synthesis Jie Jack Li Innovative Drug Synthesis Новинка

Jie Jack Li Innovative Drug Synthesis

9302.45 руб. или Купить в рассрочку!
This book covers all aspects of the medicinal chemistry of the latest drugs, and the cutting-edge science associated with them. Following the editors’ 3 successful drug synthesis books, this provides expert analysis of the pros and cons of different synthetic routes and demystifies the process of modern drug discovery for practitioners and researchers. Summarizes for each drug: respective disease area, important properties and SAR (structure-activity relationship), and chemical synthesis routes / options Includes case studies in each chapter Illustrates how chemistry, biology, pharmacokinetics, and a host of disciplines come together to produce successful medicines Explains the advantages of process synthesis versus the synthetic route for drug discovery
R. Baker Jacob CMOS. Circuit Design, Layout, and Simulation R. Baker Jacob CMOS. Circuit Design, Layout, and Simulation Новинка

R. Baker Jacob CMOS. Circuit Design, Layout, and Simulation

11158.36 руб. или Купить в рассрочку!
The Third Edition of CMOS Circuit Design, Layout, and Simulation continues to cover the practical design of both analog and digital integrated circuits, offering a vital, contemporary view of a wide range of analog/digital circuit blocks including: phase-locked-loops, delta-sigma sensing circuits, voltage/current references, op-amps, the design of data converters, and much more. Regardless of one's integrated circuit (IC) design skill level, this book allows readers to experience both the theory behind, and the hands-on implementation of, complementary metal oxide semiconductor (CMOS) IC design via detailed derivations, discussions, and hundreds of design, layout, and simulation examples.
Gunter Mayer The Chemical Biology of Nucleic Acids Gunter Mayer The Chemical Biology of Nucleic Acids Новинка

Gunter Mayer The Chemical Biology of Nucleic Acids

14288.7 руб. или Купить в рассрочку!
With extensive coverage of synthesis techniques and applications, this text describes chemical biology techniques which have gained significant impetus during the last five years. It focuses on the methods for obtaining modified and native nucleic acids, and their biological applications. Topics covered include: chemical synthesis of modified RNA expansion of the genetic alphabet in nucleic acids by creating new base pairs chemical biology of DNA replication: probing DNA polymerase selectivity mechanisms with modified nucleotides nucleic-acid-templated chemistry chemical biology of peptide nucleic acids (PNA) the interactions of small molecules with DNA and RNA the architectural modules of folded RNAs genesis and biological applications of locked nucleic acid (LNA) small non-coding RNA in bacteria microRNA-guided gene silencing nucleic acids based therapies innate immune recognition of nucleic acid light-responsive nucleic acids for the spatiotemporal control of biological processes DNA methylation frameworks for programming RNA devices RNA as a catalyst: The Diels-Alderase-Ribozyme evolving an understanding of RNA function by in vitro approaches the chemical biology of aptamers: synthesis and applications nucleic acids as detection tools bacterial riboswitch discovery and analysis The Chemical Biology of Nucleic Acids is an essential compendium of the synthesis of nucleic acids and their biological applications for bioorganic chemists, chemical biologists, medicinal chemists, cell biologists, and molecular biologists.
Piet W. N. M. van Leeuwen Phosphorus(III) Ligands in Homogeneous Catalysis. Design and Synthesis Piet W. N. M. van Leeuwen Phosphorus(III) Ligands in Homogeneous Catalysis. Design and Synthesis Новинка

Piet W. N. M. van Leeuwen Phosphorus(III) Ligands in Homogeneous Catalysis. Design and Synthesis

15229.65 руб. или Купить в рассрочку!
Over the last 60 years the increasing knowledge of transition metal chemistry has resulted in an enormous advance of homogeneous catalysis as an essential tool in both academic and industrial fields. Remarkably, phosphorus(III) donor ligands have played an important role in several of the acknowledged catalytic reactions. The positive effects of phosphine ligands in transition metal homogeneous catalysis have contributed largely to the evolution of the field into an indispensable tool in organic synthesis and the industrial production of chemicals. This book aims to address the design and synthesis of a comprehensive compilation of P(III) ligands for homogeneous catalysis. It not only focuses on the well-known traditional ligands that have been explored by catalysis researchers, but also includes promising ligand types that have traditionally been ignored mainly because of their challenging synthesis. Topics covered include ligand effects in homogeneous catalysis and rational catalyst design, P-stereogenic ligands, calixarenes, supramolecular approaches, solid phase synthesis, biological approaches, and solubility and separation. Ligand families covered in this book include phosphine, diphosphine, phosphite, diphosphite, phosphoramidite, phosphonite, phosphinite, phosphole, phosphinine, phosphinidenene, phosphaalkenes, phosphaalkynes, P-chiral ligands, and cage ligands. Each ligand class is accompanied by detailed and reliable synthetic procedures. Often the rate limiting step in the application of ligands in catalysis is the synthesis of the ligands themselves, which can often be very challenging and time consuming. This book will provide helpful advice as to the accessibility of ligands as well as their synthesis, thereby allowing researchers to make a more informed choice. Phosphorus(III) Ligands in Homogeneous Catalysis: Design and Synthesis is an essential overview of this important class of catalysts for academic and industrial researchers working in catalyst development, organometallic and synthetic chemistry.
Gunter Mayer The Chemical Biology of Nucleic Acids Gunter Mayer The Chemical Biology of Nucleic Acids Новинка

Gunter Mayer The Chemical Biology of Nucleic Acids

14475.71 руб. или Купить в рассрочку!
With extensive coverage of synthesis techniques and applications, this text describes chemical biology techniques which have gained significant impetus during the last five years. It focuses on the methods for obtaining modified and native nucleic acids, and their biological applications. Topics covered include: chemical synthesis of modified RNA expansion of the genetic alphabet in nucleic acids by creating new base pairs chemical biology of DNA replication: probing DNA polymerase selectivity mechanisms with modified nucleotides nucleic-acid-templated chemistry chemical biology of peptide nucleic acids (PNA) the interactions of small molecules with DNA and RNA the architectural modules of folded RNAs genesis and biological applications of locked nucleic acid (LNA) small non-coding RNA in bacteria microRNA-guided gene silencing nucleic acids based therapies innate immune recognition of nucleic acid light-responsive nucleic acids for the spatiotemporal control of biological processes DNA methylation frameworks for programming RNA devices RNA as a catalyst: The Diels-Alderase-Ribozyme evolving an understanding of RNA function by in vitro approaches the chemical biology of aptamers: synthesis and applications nucleic acids as detection tools bacterial riboswitch discovery and analysis The Chemical Biology of Nucleic Acids is an essential compendium of the synthesis of nucleic acids and their biological applications for bioorganic chemists, chemical biologists, medicinal chemists, cell biologists, and molecular biologists.
Kostadinov Todor Pavlov Bistatic SAR / ISAR / FSR. Theory Algorithms and Program Implementation Kostadinov Todor Pavlov Bistatic SAR / ISAR / FSR. Theory Algorithms and Program Implementation Новинка

Kostadinov Todor Pavlov Bistatic SAR / ISAR / FSR. Theory Algorithms and Program Implementation

7611.06 руб. или Купить в рассрочку!
Bistatic radar consists of a radar system which comprises a transmitter and receiver which are separated by a distance comparable to the expected target distance. This book provides a general theoretical description of such bistatic technology in the context of synthetic aperture, inverse synthetic aperture and forward scattering radars from the point of view of analytical geometrical and signal formation as well as processing theory. Signal formation and image reconstruction algorithms are developed with the application of high informative linear frequency and phase code modulating techniques, and numerical experiments that confirm theoretical models are carried out. The authors suggest the program implementation of developed algorithms. A theoretical summary of the latest results in the field of bistatic radars is provided, before applying an analytical geometrical description of scenarios of bistatic synthetic aperture, inverse synthetic aperture and forward scattering radars with cooperative and non-cooperative transmitters. Signal models with linear frequency and phase code modulation are developed, and special phase modulations with C/A (coarse acquisition) and P (precision) of GPS satellite transmitters are considered. The authors suggest Matlab implementations of all geometrical models and signal formation and processing algorithms. Contents 1. Bistatic Synthetic Aperture Radar (BSAR) Survey. 2. BSAR Geometry. 3. BSAR Waveforms and Signal Models. 4. BSAR Image Reconstruction Algorithms. 5. Analytical Geometrical Determination of BSAR Resolution. 6. BSAR Experimental Results. 7. BSAR Matlab Implementation. A general theoretical description of bistatic technology within the scope of synthetic aperture, inverse synthetic aperture and forward scattering radars from the point of view of analytical geometrical and signal formation and processing theory. Signal formation and image reconstruction algorithms are developed in this title, with application of high informative linear frequency and phase code modulating techniques. Numerical experiments that confirm theoretical models are carried out and the authors suggest program implementation for the algorithms developed.
Andrushko Natalia Stereoselective Synthesis of Drugs and Natural Products Andrushko Natalia Stereoselective Synthesis of Drugs and Natural Products Новинка

Andrushko Natalia Stereoselective Synthesis of Drugs and Natural Products

39582.02 руб. или Купить в рассрочку!
Brings together the best tested and proven stereoselective synthetic methods Both the chemical and pharmaceutical industries are increasingly dependent on stereoselective synthetic methods and strategies for the generation of new chiral drugs and natural products that offer specific 3-D structures. With the publication of Stereoselective Synthesis of Drugs and Natural Products, researchers can turn to this comprehensive two-volume work to guide them through all the core methods for the synthesis of chiral drugs and natural products. Stereoselective Synthesis of Drugs and Natural Products features contributions from an international team of synthetic chemists and pharmaceutical and natural product researchers. These authors have reviewed the tremendous body of literature in the field in order to compile a set of reliable, tested, and proven methods alongside step-by-step guidance. This practical resource not only explores synthetic methodology, but also reaction mechanisms and applications in medicinal chemistry and drug discovery. The publication begins with an introductory chapter covering general principles and methodologies, nomenclature, and strategies of stereoselective synthesis. Next, it is divided into three parts: Part One: General Methods and Strategies Part Two: Stereoselective Synthesis by Bond Formation including C-C bond formation C-H bond formation C-O bond formation C-N bond formation Other C-heteroatom formation and other bond formation Part Three: Methods of Analysis and Chiral Separation References in every chapter serve as a gateway to the literature in the field. With this publication as their guide, chemists involved in the stereoselective synthesis of drugs and natural products now have a single, expertly edited source for all the methods they need.
Peter Langer Asymmetric Synthesis of Non-Proteinogenic Amino Acids Peter Langer Asymmetric Synthesis of Non-Proteinogenic Amino Acids Новинка

Peter Langer Asymmetric Synthesis of Non-Proteinogenic Amino Acids

15256.01 руб. или Купить в рассрочку!
Authored by two internationally recognized experts with an excellent track record, this much-needed reference summarizes latest research in the rapidly developing field of stereoselective synthesis of enantiomerically enriched amino acids, particularly of non-proteinogenic origin. It highlights several different catalytic and stoichiometric asymmetric methods for their synthesis and also provides information on origin, biological properties, different synthetic strategies and important applications in medicine and pharmacology. Essential reading for synthetic chemists working in the field of asymmetric synthesis, natural products and peptide synthesis, stereochemistry, medicinal chemistry, biochemistry, pharmacology, and biotechnology.
François Auger Signal Processing with Free Software. Practical Experiments François Auger Signal Processing with Free Software. Practical Experiments Новинка

François Auger Signal Processing with Free Software. Practical Experiments

4749.84 руб. или Купить в рассрочку!
An ideal resource for students, industrial engineers, and researchers, Signal Processing with Free Software Practical Experiments presents practical experiments in signal processing using free software. The text introduces elementary signals through elementary waveform, signal storage files and elementary operations on signals and then presents the first tools to signal analysis such as temporal and frequency characteristics leading to Time-frequency analysis. Non-parametric spectral analysis is also discussed as well as signal processing through sampling, resampling, quantification, and analog and digital filtering. Table of Contents: 1. Generation of Elementary Signals. Generation of Elementary Waveform. – Elementary Operations on the Signals. – Format of Signal Storage Files. 2. First tools of Signal Analysis. Measurement of Temporal and Frequency Characteristics of a Signal. Time-Frequency Analysis of a Signal. 3. Non-parametric Spectral Analysis. 4. Signal Processing. Sampling. – Resampling. – Quantification. – “Analog” Filtering. Digital Filtering
Doron Ezri Loss of Lock and Steady-State Errors In a non Causal Phase Estimator Doron Ezri Loss of Lock and Steady-State Errors In a non Causal Phase Estimator Новинка

Doron Ezri Loss of Lock and Steady-State Errors In a non Causal Phase Estimator

The phenomenon of loss of lock in tracking systems is ubiquitous in engineering practice. However, the key problem of loss of lock in non-causal estimation or smoothing is a marked exception in this well researched area. The methods that were developed for the treatment of the former are not suitable for the analysis of the latter problem. The main purpose of this research is to provide the missing theory and investigate the phenomenon of loss of lock in smoothers. We concentrate in this dissertation on the carrier phase estimation problem, a benchmark problem in nonlinear estimation.Our results include an asymptotic computation of the mean time to lose lock (MTLL) in the optimal minimum noise energy (MNE) smoother. We show that the MTLL in the first and second order smoother is significantly longer than that in the causal phase locked loop(PLL). We give a complete description of the steady state error regime in linear and nonlinear smoothers, in case the inputs are polynomial in time. We show that the steady-state error in the optimal smoother is significantly smaller than that in the optimal filter.
Johnson Douglas S. Modern Drug Synthesis Johnson Douglas S. Modern Drug Synthesis Новинка

Johnson Douglas S. Modern Drug Synthesis

10027.44 руб. или Купить в рассрочку!
Following Contemporary Drug Synthesis and The Art of Drug Synthesis (Wiley, 2004 and 2007), two well-received works, is this new book that demystifies the process of modern drug discovery for practitioners and students. An enhanced introduction covers areas such as background, pharmacology, SAR, PK/PD, efficacy, and safety. Focusing on the advantages of process synthesis versus the discovery synthetic route, Modern Drug Synthesis features authoritative coverage by distinguished editors and authors (some chapter authors are the actual inventor of the drug) of twenty different drug molecules.
Xiao-Feng Wu Transition Metal-Catalyzed Heterocycle Synthesis via C-H Activation Xiao-Feng Wu Transition Metal-Catalyzed Heterocycle Synthesis via C-H Activation Новинка

Xiao-Feng Wu Transition Metal-Catalyzed Heterocycle Synthesis via C-H Activation

11692.49 руб. или Купить в рассрочку!
Reflecting the tremendous growth of this hot topic in recent years, this book covers C-H activation with a focus on heterocycle synthesis. As such, the text provides general mechanistic aspects and gives a comprehensive overview of catalytic reactions in the presence of palladium, rhodium, ruthenium, copper, iron, cobalt, and iridium. The chapters are organized according to the transition metal used and sub-divided by type of heterocycle formed to enable quick access to the synthetic route needed. Chapters on carbonylative synthesis of heterocycles and the application of C-H activation methodology to the synthesis of natural products are also included. Written by an outstanding team of authors, this is a valuable reference for researchers in academia and industry working in the field of organic synthesis, catalysis, natural product synthesis, pharmaceutical chemistry, and crop protection.
Laurie Starkey S. Introduction to Strategies for Organic Synthesis Laurie Starkey S. Introduction to Strategies for Organic Synthesis Новинка

Laurie Starkey S. Introduction to Strategies for Organic Synthesis

3916.73 руб. или Купить в рассрочку!
The stepping-stone text for students with a preliminary knowledge of organic chemistry looking to move into organic synthesis research and graduate-level coursework Organic synthesis is an advanced but important field of organic chemistry, however resources for advanced undergraduates and graduate students moving from introductory organic chemistry courses to organic synthesis research are scarce. Introduction to Strategies for Organic Synthesis is designed to fill this void, teaching practical skills for making logical retrosynthetic disconnections, while reviewing basic organic transformations, reactions, and reactivities. Divided into seven parts that include sections on Retrosynthesis and Protective Groups; Overview of Organic Transformations; Synthesis of Monofunctional Target Molecules; Synthesis of Target Molecules with Two Functional Groups; Synthesis of Aromatic Target Molecules; Synthesis of Compounds Containing Rings; and Predicting and Controlling Stereochemistry, the book covers everything students need to successfully perform retrosynthetic analyses of target molecule synthesis. Starting with a review of functional group transformations, reagents, and reaction mechanisms, the book demonstrates how to plan a synthesis, explaining functional group analysis and strategic disconnections. Incorporating a review of the organic reactions covered, it also demonstrates each reaction from a synthetic chemist's point of view, to provide students with a clearer understanding of how retrosynthetic disconnections are made. Including detailed solutions to over 300 problems, worked-through examples and end-of-chapter comprehension problems, Introduction to Strategies for Organic Synthesis serves as a stepping stone for students with an introductory knowledge of organic chemistry looking to progress to more advanced synthetic concepts and methodologies.
Xing Wei Boolean Circuit Rewiring. Bridging Logical and Physical Designs Xing Wei Boolean Circuit Rewiring. Bridging Logical and Physical Designs Новинка

Xing Wei Boolean Circuit Rewiring. Bridging Logical and Physical Designs

10418.74 руб. или Купить в рассрочку!
Demonstrates techniques which will allow rewiring rates of over 95%, enabling adoption of deep sub-micron chips for industrial applications Logic synthesis is an essential part of the modern digital IC design process in semi-conductor industry. This book discusses a logic synthesis technique called “rewiring” and its latest technical advancement in term of rewirability. Rewiring technique has surfaced in academic research since 1993 and there is currently no book available on the market which systematically and comprehensively discusses this rewiring technology. The authors cover logic transformation techniques with concentration on rewiring. For many decades, the effect of wiring on logic structures has been ignored due to an ideal view of wires and their negligible role in the circuit performance. However in today’s semiconductor technology wiring is the major player in circuit performance degeneration and logic synthesis engines can be improved to deal with this through wire-based transformations. This book introduces the automatic test pattern generation (ATPG)-based rewiring techniques, which are recently active in the realm of logic synthesis/verification of VLSI/SOC designs. Unique comprehensive coverage of semiconductor rewiring techniques written by leading researchers in the field Provides complete coverage of rewiring from an introductory to intermediate level Rewiring is explained as a flexible technique for Boolean logic synthesis, introducing the concept of Boolean circuit transformation and testing, with examples Readers can directly apply the described techniques to real-world VLSI design issues Focuses on the automatic test pattern generation (ATPG) based rewiring methods although some non-ATPG based rewiring methods such as graph based alternative wiring (GBAW), and “set of pairs of functions to be distinguished” (SPFD) based rewiring are also discussed A valuable resource for researchers and postgraduate students in VLSI and SoC design, as well as digital design engineers, EDA software developers, and design automation experts that specialize in the synthesis and optimization of logical circuits.
Carolyn Wells The Mystery Girl Carolyn Wells The Mystery Girl Новинка

Carolyn Wells The Mystery Girl

The cozy college town of Corinth, New England is the setting for this classic locked-room mystery by Carolyn Wells, author of The Clue. All entrances to the study where the body was found were locked from the inside. The future college president and groom-to-be had no known cause for suicide, yet no clues point to a murder. Was Anita, the eponymous Mystery Girl, who is rumored to have been romantically involved with the dead man, somehow implicated in his death? Love letters between the two of them point to her potential guilt. And yet she seems incapable of such a crime. It's up to Detective Fleming Stone to decipher the story's twin puzzles; the mystery of the locked-room death and the true nature of ... The Mystery Girl.
Kenji Mori Chemical Synthesis of Hormones, Pheromones and Other Bioregulators Kenji Mori Chemical Synthesis of Hormones, Pheromones and Other Bioregulators Новинка

Kenji Mori Chemical Synthesis of Hormones, Pheromones and Other Bioregulators

12817.03 руб. или Купить в рассрочку!
Many small molecules occur naturally as «messenger» chemicals which regulate the behaviour and functions of microbes, plants, insects and animals. Examples include hormones, pheromones, phytoalexins, and antifeedants. These biofunctional molecules are of great interest to researchers in helping develop our understanding of biological function and in the development of new drugs. However extracting them from nature can be prohibitively expensive, so there is great interest in devising methods of synthesising them from simple starting materials in the laboratory. Chemical Synthesis of Hormones, Pheromones and Other Bioregulators is an introduction to the techniques and strategies for the synthesis of biofunctional small molecules. Topics include: what are biofunctional molecules? why must biofunctional molecules be synthesized? how can we synthesize biofunctional molecules? the synthesis of phytohormones, phytoalexins and other biofunctional molecules of plant origin the synthesis of insect juvenile hormones and antifeedants the synthesis of pheromones and the significance of chirality in pheromone science the synthesis of microbial hormones and pheromones, antibiotics, and other biofunctional molecules of microbial origin the synthesis of marine antifeedants and medicinal candidates a synthetic examination of incorrectly proposed structures of biomolecules reflections on science as a human endeavor Drawing on a career of almost 50 years researching and teaching this subject, Kenji Mori's Chemical Synthesis of Hormones, Pheromones and Other Bioregulators is a must-have textbook for students and researchers of organic synthesis and natural products, and a stimulating and inspiring account of a distinguished chemical career.
Kenji Mori Chemical Synthesis of Hormones, Pheromones and Other Bioregulators Kenji Mori Chemical Synthesis of Hormones, Pheromones and Other Bioregulators Новинка

Kenji Mori Chemical Synthesis of Hormones, Pheromones and Other Bioregulators

12651.33 руб. или Купить в рассрочку!
Many small molecules occur naturally as «messenger» chemicals which regulate the behaviour and functions of microbes, plants, insects and animals. Examples include hormones, pheromones, phytoalexins, and antifeedants. These biofunctional molecules are of great interest to researchers in helping develop our understanding of biological function and in the development of new drugs. However extracting them from nature can be prohibitively expensive, so there is great interest in devising methods of synthesising them from simple starting materials in the laboratory. Chemical Synthesis of Hormones, Pheromones and Other Bioregulators is an introduction to the techniques and strategies for the synthesis of biofunctional small molecules. Topics include: what are biofunctional molecules? why must biofunctional molecules be synthesized? how can we synthesize biofunctional molecules? the synthesis of phytohormones, phytoalexins and other biofunctional molecules of plant origin the synthesis of insect juvenile hormones and antifeedants the synthesis of pheromones and the significance of chirality in pheromone science the synthesis of microbial hormones and pheromones, antibiotics, and other biofunctional molecules of microbial origin the synthesis of marine antifeedants and medicinal candidates a synthetic examination of incorrectly proposed structures of biomolecules reflections on science as a human endeavor Drawing on a career of almost 50 years researching and teaching this subject, Kenji Mori's Chemical Synthesis of Hormones, Pheromones and Other Bioregulators is a must-have textbook for students and researchers of organic synthesis and natural products, and a stimulating and inspiring account of a distinguished chemical career.
Johannes Stahl Single Channel Phase-Aware Signal Processing in Speech Communication. Theory and Practice Johannes Stahl Single Channel Phase-Aware Signal Processing in Speech Communication. Theory and Practice Новинка

Johannes Stahl Single Channel Phase-Aware Signal Processing in Speech Communication. Theory and Practice

7676.37 руб. или Купить в рассрочку!
An overview on the challenging new topic of phase-aware signal processing Speech communication technology is a key factor in human-machine interaction, digital hearing aids, mobile telephony, and automatic speech/speaker recognition. With the proliferation of these applications, there is a growing requirement for advanced methodologies that can push the limits of the conventional solutions relying on processing the signal magnitude spectrum. Single-Channel Phase-Aware Signal Processing in Speech Communication provides a comprehensive guide to phase signal processing and reviews the history of phase importance in the literature, basic problems in phase processing, fundamentals of phase estimation together with several applications to demonstrate the usefulness of phase processing. Key features: Analysis of recent advances demonstrating the positive impact of phase-based processing in pushing the limits of conventional methods. Offers unique coverage of the historical context, fundamentals of phase processing and provides several examples in speech communication. Provides a detailed review of many references and discusses the existing signal processing techniques required to deal with phase information in different applications involved with speech. The book supplies various examples and MATLAB® implementations delivered within the PhaseLab toolbox. Single-Channel Phase-Aware Signal Processing in Speech Communication is a valuable single-source for students, non-expert DSP engineers, academics and graduate students.
Husson H. P. Asymmetric Synthesis of Nitrogen Heterocycles Husson H. P. Asymmetric Synthesis of Nitrogen Heterocycles Новинка

Husson H. P. Asymmetric Synthesis of Nitrogen Heterocycles

18471.61 руб. или Купить в рассрочку!
Here, all aspects of the topic are presented in a compact manner. The book is clearly structured, and divided into two sections – asymmetric synthesis of heterocycles containing only one nitrogen and that of those with more than one nitrogen as a heteroatom – such that the necessary information may be found at a glance. The international team of authors provides important experimental procedures, including industrial applications. Essential for synthetic chemists in pharmaceutical and agrochemical chemistry.
Warwick Johnston Tales from Useless Loop Warwick Johnston Tales from Useless Loop Новинка

Warwick Johnston Tales from Useless Loop

The town of Useless Loop in Western Australia is the home of The Greater Western Salt Mining Company. Completely isolated, the tiny settlement is only accessible by boat. A closed community run by the company, Useless Loop has it's own culture. So when a stranger decides to escape the law and hide out in Useless Loop, he begins to wonder if in fact he'd rather be caught after all. A fictional story based on a real town.
Yoshiki Chujo Conjugated Polymer Synthesis. Methods and Reactions Yoshiki Chujo Conjugated Polymer Synthesis. Methods and Reactions Новинка

Yoshiki Chujo Conjugated Polymer Synthesis. Methods and Reactions

2107.27 руб. или Купить в рассрочку!
Edited and authored by top international experts, this first book on conjugated polymers with a focus on synthesis provides a detailed overview of all modern synthetic methods for these highly interesting compounds. As such, it describes every important compound class, including polysilanes, organoboron compounds, and ferrocene-containing conjugated polymers. An indispensable source for every synthetic polymer chemist.
Susheel Kalia Polymer Nanocomposites based on Inorganic and Organic Nanomaterials Susheel Kalia Polymer Nanocomposites based on Inorganic and Organic Nanomaterials Новинка

Susheel Kalia Polymer Nanocomposites based on Inorganic and Organic Nanomaterials

14512.52 руб. или Купить в рассрочку!
This book covers all aspects of the different classes of nanomaterials – from synthesis to application. It investigates in detail the use and feasibility of developing nanocomposites with these nanomaterials as reinforcements. The book encompasses synthesis and properties of cellulose nanofibers, bacterial nanocellulose, carbon nanotubes / nanofibers, graphene, nanodiamonds, nanoclays, inorganic nanomaterials and their nanocomposites for high-end applications such as electronic devices, energy storage, structural and packaging. The book also provides insight into various modification techniques for improving the functionality of nanomaterials apart from their compatibility with the base matrix.
Pedro Merino Chemical Synthesis of Nucleoside Analogues Pedro Merino Chemical Synthesis of Nucleoside Analogues Новинка

Pedro Merino Chemical Synthesis of Nucleoside Analogues

14362.84 руб. или Купить в рассрочку!
Compiles current tested and proven approaches to synthesize novel nucleoside analogues Featuring contributions from leading synthetic chemists from around the world, this book brings together and describes tested and proven approaches for the chemical synthesis of common families of nucleoside analogues. Readers will learn to create new nucleoside analogues with desired therapeutic properties by using a variety of methods to chemically modify natural nucleosides, including: Changes to the heterocyclic base Modification of substituents at the sugar ring Replacement of the furanose ring by a different carbo- or heterocyclic ring Introduction of conformational restrictions Synthesis of enantiomers Preparation of hydrolitically stable C-nucleosides Chemical Synthesis of Nucleoside Analogues covers all the major classes of nucleosides, including pronucleotides, C-nucleosides, carbanucleosides, and PNA monomers which have shown great promise as starting points for the synthesis of nucleoside analogues. The book also includes experimental procedures for key reactions related to the synthesis of nucleoside analogues, providing a valuable tool for the preparation of a number of different compounds. Throughout the book, chemical schemes and figures help readers better understand the chemical structures of nucleoside analogues and the methods used to synthesize them. Extensive references serve as a gateway to the growing body of original research studies and reviews in the field. Synthetically modified nucleosides have proven their value as therapeutic drugs, in particular as antiviral and antitumor agents. However, many of these nucleoside analogues have undesirable side effects. With Chemical Synthesis of Nucleoside Analogues as their guide, researchers have a new tool for synthesizing a new generation of nucleoside analogues that can be used as therapeutic drugs with fewer unwanted side effects.
Kathy Lu Advances in Synthesis, Processing, and Applications of Nanostructures Kathy Lu Advances in Synthesis, Processing, and Applications of Nanostructures Новинка

Kathy Lu Advances in Synthesis, Processing, and Applications of Nanostructures

10344.6 руб. или Купить в рассрочку!
With contributed papers from the 2011 Materials Science and Technology symposia, this is a useful one-stop resource for understanding the most important issues in advances in the synthesis, processing, and applications of nanostructures. Logically organized and carefully selected, the articles cover the themes of the symposia: Nanotechnology for Energy, Healthcare and Industry; Controlled Synthesis Processing and Applications of Structural and Functional Nanomaterials; and Synthesis, Properties, and Applications of Noble Metal Nanostructures. A must for academics in mechanical and chemical engineering, materials and or ceramics, and chemistry.
Steven Nolan P. N-Heterocyclic Carbenes. Effective Tools for Organometallic Synthesis Steven Nolan P. N-Heterocyclic Carbenes. Effective Tools for Organometallic Synthesis Новинка

Steven Nolan P. N-Heterocyclic Carbenes. Effective Tools for Organometallic Synthesis

15777.09 руб. или Купить в рассрочку!
This comprehensive reference and handbook covers in depth all major aspects of the use of N-heterocyclic carbene-complexes in organic synthesis: from the theoretical background to characterization, and from cross-coupling reactions to olefin metathesis. Edited by a leader and experienced scientist in the field of homogeneous catalysis and use of NHCs, this is an essential tool for every academic and industrial synthetic chemist.
Yannan Miao High-Frequency Low-Power Local Oscillator Generation Yannan Miao High-Frequency Low-Power Local Oscillator Generation Новинка

Yannan Miao High-Frequency Low-Power Local Oscillator Generation

With rapid development in the area of RF and wireless communication, the interest in frequency synthesizers has grown rapidly in the last few years. Frequency synthesizer is used for local oscillator (LO) generation. In this thesis, our aim is to explore high-frequency low-power LO generation in CMOS technology. We focus on three most power-hungry blocks in a frequency synthesizer, which dominate the total power consumption due to their high-frequency operation, namely voltage-controlled oscillator (VCO), frequency divider and frequency multiplier, as these circuits are the bottleneck to achieve the above mentioned aim. Through reducing their power consumption, the total power consumption of the frequency synthesizer can be reduced significantly. Moreover, the phase noise of the frequency synthesizer is significantly dependent on the VCO and the frequency multiplier. These novel ideas are implemented in a 24-GHz frequency synthesizer. These designs should help those IC designers, who may be considering improving the performance of transceiver.

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The loop-shaping approach consists of obtaining a specification in relation to the open loop of the control from specifications regarding various closed loop transfers, because it is easier to work on a single transfer (in addition to the open loop) than on a multitude of transfers (various loopings such as set point/error, disturbance/error, disturbance/control, etc.). The simplicity and flexibility of the approach make it very well adapted to the industrial context. This book presents the loop-shaping approach in its entirety, starting with the declension of high-level specifications into a loop-shaping specification. It then shows how it is possible to fully integrate this approach for the calculation of robust and efficient correctors with the help of existing techniques, which have already been industrially tried and tested, such as H-infinity synthesis. The concept of a gap metric (or distance between models) is also presented along with its connection with the prime factors of a set of systems shaping a ball of models, as well as its connections with robust synthesis by loop-shaping, in order to calculate efficient and robust correctors. As H-infinity loop-shaping is often demanding in terms of the order of correctors, the author also looks at loop-shaping synthesis under an ordering constraint. Two further promising lines of research are presented, one using stochastic optimization, and the other non-smooth optimization. Finally, the book introduces the concept of correction with two degrees of freedom via the formalism of prime factorization. Avenues for future work are also opened up by the author as he discusses the main drawbacks to loop-shaping synthesis, and how these issues can be solved using modern optimization techniques in an increasingly competitive industrial context, in accordance with ever more complex sets of functional specifications, associated with increasingly broad conditions of usage. Contents Introduction 1. The Loop-shaping Approach 2. Loop-shaping H-infinity Synthesis 3. Two Degrees-of-Freedom Controllers 4. Extensions and Optimizations Appendix 1. Demonstrative Elements on the Optimization of Robust Stabilization with Order Constraint Appendix 2. Establishment of Real LMIs for the Quasi-Convex Problem of Optimization of the Weighting Functions About the Authors Philippe Feyel is an R&D Engineer for the high-tech company Sagem Défense Sécurité, part of the defence and security business of the SAFRAN group, in Paris, France.
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