The book comprises a new method of solving the integral equation of Leontovich, the most rigorous and most effective equation for the current in thin linear antennas. The book describes the features of the new method in its application in various types of antennas. It considers new ways of analyzing antennas, in particular in the calculation of an antenna gain based on main radiation patterns and the calculation of the directional characteristics of radiators with known distribution of current amplitude. The method of electrostatic analogy proposed by the author, provides the base for comparison of electromagnetic fields of high-frequency currents and electrostatic charges located on linear conductors to improve the directional characteristics of log-periodic and director-type antennas. A new approach to the analysis of the electrical characteristics of a microstrip antenna, which allows expansion of its operation range, is substantiated and developed. New results of antenna synthesis are obtained. The second part of the book is devoted to specific types of antennas (the author had a significant role in their creation). Particular attention is given to ship antennas for different frequency ranges. The book is intended for professionals, working in electrodynamics and those working on development, placement and exploitation of antennas. It will be useful for lecturers (university-level professors), teachers, students of radio engineering and researchers working in various fields of radio electronics and interested in an in-depth study of theoretical problems and designs f antennas. It can also be used for short university courses.
This book deals with the methods of theoretical and experimental research of antennas, which are based on the electromagnetic (EM) theory. The theory of thin antennas explains antenna analysis, as thin antennas represent one of the main types of radiators and are extensively applied as both independent antennas and as elements of more complicated antennas. The contents of the book cover new methods of antenna analysis and design, including the theory of electrically coupled lines, the methods of complex potential, compensation, impedance line, and mathematical programming among others. New results from these experiments are also detailed. The complex potential method is generalized to inhomogeneous media and is employed in conical and parabolic problems. The theory of electrically coupled lines allows considering theoretical problems of multi-conductor cables and multi-radiator antennas. The compensation method permits creating a weak field area in the near region of a transmitting antenna. The method of impedance line is applied to antennas with loads, and the method of mathematical programming deals with selecting loads to develop antennas with the required characteristics. The methods described within this text enable engineers to calculate parameters for new types of antennas, particularly, the self-complementary antennas. In the general case, similar properties pertain to the three-dimensional self-complementary antennas, their variants are also considered in the book. Close attention is also paid to the field compensation in the near region of a transmitting antenna and to the creation of the ‘dark spot’. The book is an essential reference for graduates and researchers requiring knowledge on the design and engineering of new antennas as well as the underlying electromagnetic and mathematical principles.
The book deals with theoretical and experimental research of antennas. The presentation is based on the electromagnetic theory. It begins with the theory of thin antennas. Thin antennas represent one of the main types of radiators, thus the theory of thin antennas is the basis of the antennas analysis. Special attention is paid to the integral equation of Leontovich-Levin for a current along a straight thin-walled metal cylinder, which is equivalent to the equation of Hallen with a precise kernel. Together with the analysis of various types of antennas, the book deals with the problems of synthesis including the creation a wide-band radiator by means of determining of the types and the magnitudes of concentrated loads, which are connected along a linear radiator and create in a given frequency band high electrical performance. Problems of antenna engineering are discussed in the second half of the book, including the results of application of a compensation method for the protection of humans against irradiation and structural features of ship antennas.
A Polish citizen of Belarusian descent, Boris Ragula escaped German internment during World War II only to find on his return to Belarus that it had fallen under the control of Soviet totalitarianism. He was imprisoned by the communist secret police but finally escaped with his family to Belgium.Ragula earned a medical degree and then fulfilled his dream of immigrating to Canada where for forty years he ran one of the busiest practices in London, Ontario, and played a pioneering role in the North American anti-smoking movement.Against the Currentoffers a personal account of the plight of European refugees and the importance of immigrants to Canada's postwar growth. Ragula's insights into the complicated nature of identity in central Europe shows how "ordinary people" negotiate the complex, often contradictory claims of national, ethnic, religious, and geographic loyalties. His memoir provides a personal perspective on some of the major events of the twentieth century.
Written by renowned researchers in the field, this up-to-date treatise fills the gap for a high-level work discussing current materials and processes. It covers all the steps involved, from vitrification, relaxation and viscosity, right up to the prediction of glass properties, paving the way for improved methods and applications. For solid state physicists and chemists, materials scientists, and those working in the ceramics industry. With a preface by L. David Pye and a foreword by Edgar D. Zanotto
The number of species found at a given point on the planet varies by orders of magnitude, yet large-scale gradients in biodiversity appear to follow some very general patterns. Little mechanistic theory has been formulated to explain the emergence of observed gradients of biodiversity both on land and in the oceans. Based on a comprehensive empirical synthesis of global patterns of species diversity and their drivers, A Theory of Global Biodiversity develops and applies a new theory that can predict such patterns from few underlying processes. The authors show that global patterns of biodiversity fall into four consistent categories, according to where species live: on land or in coastal, pelagic, and deep ocean habitats. The fact that most species groups, from bacteria to whales, appear to follow similar biogeographic patterns of richness within these habitats points toward some underlying structuring principles. Based on empirical analyses of environmental correlates across these habitats, the authors combine aspects of neutral, metabolic, and niche theory into one unifying framework. Applying it to model terrestrial and marine realms, the authors demonstrate that a relatively simple theory that incorporates temperature and community size as driving variables is able to explain divergent patterns of species richness at a global scale. Integrating ecological and evolutionary perspectives, A Theory of Global Biodiversity yields surprising insights into the fundamental mechanisms that shape the distribution of life on our planet.
Given a conservative dynamical system of classical physics, how does one find a variational principle for it? Is there a canonical recipe for such a principle? The case of particle mechanics was settled by Lagrange in 1788; this text treats continuous systems. Recipes devised are algebraic in nature, and this book develops all the mathematical tools found necessary after the minute examination of the adiabatic fluid dynamics in the introduction. These tools include: Lagrangian and Hamiltonian formalisms, Legendre transforms, dual spaces of Lie algebras and associated 2-cocycles; and linearized and Z2-graded versions of all of these. The following typical physical systems, together with their Hamiltonian structures, are discussed: Classical Magnetohydro-dynamics with its Hall deformation; Multifluid Plasma; Superfluid He-4 (both irrotational and rotating) and 3He-A; Quantum fluids; Yang-Mills MHD; Spinning fluids; Spin Glass; Extended YM Plasma; A Lattice Gas. Detailed motivations, easy-to-follow arguments, open problems, and over 300 exercises help the reader. Request Inspection Copy
This book offers a detailed investigation of breakdowns in traffic and transportation networks. It shows empirically that transitions from free flow to so-called synchronized flow, initiated by local disturbances at network bottlenecks, display a nucleation-type behavior: while small disturbances in free flow decay, larger ones grow further and lead to breakdowns at the bottlenecks. Further, it discusses in detail the significance of this nucleation effect for traffic and transportation theories, and the consequences this has for future automatic driving, traffic control, dynamic traffic assignment, and optimization in traffic and transportation networks. Starting from a large volume of field traffic data collected from various sources obtained solely through measurements in real world traffic, the author develops his insights, with an emphasis less on reviewing existing methodologies, models and theories, and more on providing a detailed analysis of empirical traffic data and drawing consequences regarding the minimum requirements for any traffic and transportation theories to be valid. The book - proves the empirical nucleation nature of traffic breakdown in networks - discusses the origin of the failure of classical traffic and transportation theories - shows that the three-phase theory is incommensurable with the classical traffic theories, and - explains why current state-of-the art dynamic traffic assignments tend to provoke heavy traffic congestion, making it a valuable reference resource for a wide audience of scientists and postgraduate students interested in the fundamental understanding of empirical traffic phenomena and related data-driven phenomenology, as well as for practitioners working in the fields of traffic and transportation engineering.
Are you about to begin your dissertation or a research project, but don’t know what topic to choose?Are you unsure of what research methods to use and how they should be applied to your project?Are you worried about how to write up your research project?Then this is the book for you! A balanced coverage of qualitative and quantitative methods means that no matter what approach you choose to use for your project, there are examples and case studies to help guide you through the process. Student Research boxes provide an insight into situations and research decisions that students have encountered in real life projects. They contain hints, tips and sometimes questions to help you think through your own project. A Running Case Study charts the progression of two student research projects - one qualitative and one quantitative - and shows how the content of each chapter can be used to develop their projects. Thought provoking questions are included in order to help you consider the issues and decisions involved, which you can then apply to your own project. Deeper Insight boxes delve further into particular research issues, offering you a detailed description to increase your understanding of these areas, whilst Real Life examples put research methods into context, by showing you how they have been applied in real world situations. The Online Learning Centre contains a vast amount of extra resources to help you create a superior project: Six statistical chapters are available to help you prepare, test and analyse your hypotheses and data. Extra cases, appendices and dataset exercises help you to take your study further. Check out the Research Skills Centre for free chapters of Study Skills books, examples of good and bad proposals, and templates for questionnaires and surveys. All of this and more can be found at www.mcgraw-hill.co.uk/textbooks/blumberg
Professor Thompson's subject is the uneasy position of art within Marxist ideology: what part can the arts of the past play in the new society? On the one hand there was the sense of a continuing cultural tradition, more or less independent of ideological change symbolized in the image of the Venus of Milo, and on the other, the iconoclastic demands for a complete break with the past in all its forms made by revolutionary artists, who found in the myth of Lot's wife a symbol of the attractions of the past. Originally published in 1978, the book discusses the problems and paradoxes involved from a general theoretical point of view and in the work of individual artists. Professor Thompson suggests that the power inherent in art to resist social and ideological changes undermines all rationalistic theories of art, those of the Marxists and those fashionable in the West.
Separation of Isotopes of Biogenic Elements provides a detailed overview of this area of research covering all aspects from the value of isotope effects to their practical use (equilibrium single-stage isotope effect - kinetics and mass transfer – multiplication of the single-stage isotope separation factor - technological peculiarity of processes) with the purpose of extraction from the natural mixture of the enriched and highly concentrated isotopes. In contrast to traditional books on the theory of isotope separation, the theoretical part of the book describes separation in two-phase processes in counter-flow columns. The experimental part of the book presents systematic analysis of specialists in the field of isotope separation in counter-flow columns. This book will be of interest to scientists, engineers and technical workers engaged in isotope separation processes and isotope application in nuclear physics, medicine, agro-chemistry, biology and other areas. This book may also be used in teaching theory and practical aspects in courses on physical chemistry and Isotope separation of light elements by physicochemical methods.* summarises current state of isotope research, especially biogenic elements* covering all aspects from the value of isotope effects to their practical use* of interest to scientists, engineers and technical workers engaged in isotope separation processes and isotope application
Often considered more of an art than a science, books on clustering have been dominated by learning through example with techniques chosen almost through trial and error. Even the two most popular, and most related, clustering methods—K-Means for partitioning and Ward's method for hierarchical clustering—have lacked the theoretical underpinning required to establish a firm relationship between the two methods and relevant interpretation aids. Other approaches, such as spectral clustering or consensus clustering, are considered absolutely unrelated to each other or to the two above mentioned methods. Clustering: A Data Recovery Approach, Second Edition presents a unified modeling approach for the most popular clustering methods: the K-Means and hierarchical techniques, especially for divisive clustering. It significantly expands coverage of the mathematics of data recovery, and includes a new chapter covering more recent popular network clustering approaches—spectral, modularity and uniform, additive, and consensus—treated within the same data recovery approach. Another added chapter covers cluster validation and interpretation, including recent developments for ontology-driven interpretation of clusters. Altogether, the insertions added a hundred pages to the book, even in spite of the fact that fragments unrelated to the main topics were removed. Illustrated using a set of small real-world datasets and more than a hundred examples, the book is oriented towards students, practitioners, and theoreticians of cluster analysis. Covering topics that are beyond the scope of most texts, the author’s explanations of data recovery methods, theory-based advice, pre- and post-processing issues and his clear, practical instructions for real-world data mining make this book ideally suited for teaching, self-study, and professional reference.
Ancient Irrigation Systems in the Aral Sea Area, is the English translation of Boris Vasilevich Andrianov's work, Drevnie orositelnye sistemy priaralya , concerning the study of ancient irrigation systems and the settlement pattern in the historical region of Khorezm, south of the Aral Sea (Uzbekistan). This work holds a special place within the Soviet archaeological school because of the results obtained through a multidisciplinary approach combining aerial survey and fieldwork, surveys, and excavations. This translation has been enriched by the addition of introductions written by several eminent scholars from the region regarding the importance of the Khorezm Archaeological-Ethnographic Expedition and the figure of Boris V. Andrianov and his landmark study almost 50 years after the original publication.
The common topic of this collection of studies is the interaction between innova tive activity of firms and industrial structure. I call this interaction technological competition. Firms invest into R&D in order to open up new or enlarge existing profit opportuni ties for the future. A successful R&D-project leads to an innovation. An innovation introduced into the market changes the competitive structure of the industry. At the same time the structure of the industry shapes the incentives to invest into R&D. What matters for these incentives is not so much the existing structure but the expected dynamic evolution of that industry which is again dependent on the innovative choice of firms. Amongst other things, the dynamic of industry evolution is therefore rooted in the dynamics of ongoing innovative activity. Of course, this is not always the whole sto ry. There are (more or less) exogenous factors, like knowledge spillovers from other sectors of the economy, technological breakthroughs in basic research that directly influence the state of competition in an industry by providing additional profit op portunities, etc. The same is true for exogenous changes in upstream markets or demand conditions. My main interest here is not primarily to understand these exogenous forces, but to develop a theory of how the process of firms' innovative activity is shaped by competition and in turn shapes future competition between firms in an industry.
Modern Crystallography provides an encyclopedic exposition of the field in four volumes written by Russian scientists. Structures of Crystals considers the ideal and real atomic structure of crystals as well as their electronic structures, the fundamentals of chemical bonding between atoms, geometric representations in the theory of crystal structure and crystal chemistry, as well as lattice energy. The important classes of crystal structures in inorganic compounds as well as structure polymers, liquid crystals, biological crystals, and macromolecules are treated. This second edition is complemented by recent data on many types of crystal structures - fullerenes, high-temperature superconductors, minerals, liquid crystals, etc.
The most difficult computational problems nowadays are those of higher dimensions. This research monograph offers an introduction to tensor numerical methods designed for the solution of the multidimensional problems in scientific computing. These methods are based on the rank-structured approximation of multivariate functions and operators by using the appropriate tensor formats. The old and new rank-structured tensor formats are investigated. We discuss in detail the novel quantized tensor approximation method (QTT) which provides function-operator calculus in higher dimensions in logarithmic complexity rendering super-fast convolution, FFT and wavelet transforms. This book suggests the constructive recipes and computational schemes for a number of real life problems described by the multidimensional partial differential equations. We present the theory and algorithms for the sinc-based separable approximation of the analytic radial basis functions including Green’s and Helmholtz kernels. The efficient tensor-based techniques for computational problems in electronic structure calculations and for the grid-based evaluation of long-range interaction potentials in multi-particle systems are considered. We also discuss the QTT numerical approach in many-particle dynamics, tensor techniques for stochastic/parametric PDEs as well as for the solution and homogenization of the elliptic equations with highly-oscillating coefficients. Contents Theory on separable approximation of multivariate functions Multilinear algebra and nonlinear tensor approximation Superfast computations via quantized tensor approximation Tensor approach to multidimensional integrodifferential equations
The first monograph to treat topological, group-theoretic, and geometric problems of ideal hydrodynamics and magnetohydrodynamics from a unified point of view. It describes the necessary preliminary notions both in hydrodynamics and pure mathematics with numerous examples and figures. The book is accessible to graduates as well as pure and applied mathematicians working in hydrodynamics, Lie groups, dynamical systems, and differential geometry.
This is the unknown story of how Zionists imprisoned by Soviet authorities were allowed to choose sentences of permanent departure to Palestine, where they helped build Jewish society, the backbone of left-wing parties, and the powerful trade union movement. These leading authors bring to light undiscovered documents from archives opened after the collapse of the Soviet Union and go on to revise fundamental assumptions about these events. They examine the means by which internal power struggles and personal interventions in the uppermost echelons of the Soviet leadership allowed the Zionists to disseminate their message and recruit thousands of members before the massive arrests of the mid-1920s; demonstrate the extent to which personal contacts between Zionists and those who aided them, Soviet leaders and members of the security services, were vital to initiating and sustaining the practice of substitution; and using a broad array of British and Zionist documents, they reveal the crucial role of Anglo-Zionist co-operation in facilitating the immigration of Zionist convicts. This book will of great interest to all students and scholars of Jewish and Israeli, Russian and Soviet and European and British history.
Presents a monograph that is devoted to the spectral theory of the Sturm- Liouville operator and to the spectral theory of the Dirac system. This book concerns with nth order operators that can serve as simply an introduction to this domain. It includes a chapter that discusses this theory.
This authoritative new biography of the Russian poet and prose writer Boris Pasternak is the first part of a two-volume set, covering the period 1890-1928. Drawing on archives and many eyewitness accounts, Barnes' study sheds light on currently unexplored aspects of Pasternak's character and family background, and his artistic, social and historical environment. He combines biographical investigation with detailed textual analysis of translated quotations in verse and prose to reveal the source of Pasternak's extraordinary writings. The book examines a wide range of topics that include his musical enthusiasm and relations with Scriabin, his philosophical studies, his activities in World War I and his response to the 1917 revolutions, and his stance as a liberal artistic intellectual in the 1920s.
The global loss of biodiversity has led to a renewed interest in the underlying mechanisms that explain spatial differences and temporal change of diversity. This book synthesises recent advances in our understanding of interactions that enhance or diminish coexistence among competing species. It features an innovative, spatial view of competition and coexistence. The chapters are logically grouped and stitched together by the central organising principle of spatial distribution and mobility of competing species and their resources. The text also covers ecological modelling and experimental evidence in the search for general principles across ecosystems, from lake plankton and rocky shore benthos to grasslands and insects. -- Back cover.
Comprehensive and state-of-the art study of the basic concepts and principles of variational analysis and generalized differentiation in both finite-dimensional and infinite-dimensional spaces Presents numerous applications to problems in the optimization, equilibria, stability and sensitivity, control theory, economics, mechanics, etc.
In this eagerly anticipated book, Boris Gasparov gazes through the lens of music to find an unusual perspective on Russian cultural and literary history. He discusses six major works of Russian music from the nineteenth and twentieth centuries, showing the interplay of musical texts with their literary and historical sources within the ideological and cultural contexts of their times. Each musical work becomes a tableau representing a moment in Russian history, and together the works form a coherent story of ideological and aesthetic trends as they evolved in Russia from the time of Pushkin to the rise of totalitarianism in the 1930s. Gasparov discusses Glinka’s Ruslan and Ludmilla (1842), Mussorgsky’s Boris Godunov (1871) and Khovanshchina (1881), Tchaikovsky’s Eugene Onegin (1878) and The Queen of Spades (1890), and Shostakovich’s Fourth Symphony (1934). Offering new interpretations to enhance our understanding and appreciation of these important works, Gasparov also demonstrates how Russian music and cultural history illuminate one another.
Ethnocentrism works to reinvigorate the study of ethnocentrism by reconceptualising ethnocentrism as a social, psychological, and attitudinal construct. Using a broad, multidisciplinary approach to ethnocentrism, the book integrates literature from disciplines such as psychology, political science, sociology, anthropology, biology, and marketing studies to create a novel reorganisation of the existing literature, its origins, and its outcomes. Empirical research throughout serves to comprehensively measure the six dimensions of ethnocentrism—devotion, group cohesion, preference, superiority, purity, and exploitativeness—and show how they factor into causes and consequences of ethnocentrism, including personality, values, morality, demographics, political ideology, social factors, prejudice, discrimination, and nationalism. Ethnocentrism is fascinating reading for scholars, researchers, and students in psychology, sociology, and political science.
The ship carrying the devout to Jerusalem has run into rough waters. Onboard is Manuila, controversial leader of the “Foundlings,” a sect that worships him as the Messiah. But soon the polarizing leader is no longer a passenger or a prophet but a corpse, beaten to death by someone almost supernaturally strong. But not everything is as it seems, and someone else sailing has become enmeshed in the mystery: the seemingly slow but actually astute sleuth Sister Pelagia. Her investigation of the crime will take her deep into the most dangerous areas of the Middle East and Russia, running from one-eyed criminals and after such unlikely animals as a red cockerel that may be more than a red herring. To her shock, she will emerge with not just the culprit in a murder case but a clue to the earth’s greatest secret. Sister Pelagia and the Red Cockerel features its beloved heroine’s most exciting and explosive inquiry yet, one that just might shake the foundations of her faith.
As nanotechnology has developed over the last two decades, some nanostructures, such as nanotubes, nanowires, and nanoparticles, have become very popular. However, recent research has led to the discovery of other, less-common nanoforms, which often serve as building blocks for more complex structures. In an effort to organize the field, the Handbook of Less-Common Nanostructures presents an informal classification based mainly on the less-common nanostructures. A small nanotechnological encyclopedia, this book: Describes a range of little-known nanostructures Offers a unifying vision of the synthesis of nanostructures and the generalization of rare nanoforms Includes downloadable resources with color versions of more than 100 nanostructures Explores the fabrication of rare nanostructures, including modern physical, chemical, and biological synthesis techniques The Handbook of Less-Common Nanostructures discusses a classification system not directly related to the dimensionality and chemical composition of nanostructure-forming compounds or composite. Instead, it is based mainly on the less-common nanostructures. Possessing unusual shapes and high surface areas, these structures are potentially very useful for catalytic, medical, electronic, and many other applications.
A chatbot is expected to be capable of supporting a cohesive and coherent conversation and be knowledgeable, which makes it one of the most complex intelligent systems being designed nowadays. Designers have to learn to combine intuitive, explainable language understanding and reasoning approaches with high-performance statistical and deep learning technologies. Today, there are two popular paradigms for chatbot construction: 1. Build a bot platform with universal NLP and ML capabilities so that a bot developer for a particular enterprise, not being an expert, can populate it with training data; 2. Accumulate a huge set of training dialogue data, feed it to a deep learning network and expect the trained chatbot to automatically learn “how to chat”. Although these two approaches are reported to imitate some intelligent dialogues, both of them are unsuitable for enterprise chatbots, being unreliable and too brittle. The latter approach is based on a belief that some learning miracle will happen and a chatbot will start functioning without a thorough feature and domain engineering by an expert and interpretable dialogue management algorithms. Enterprise high-performance chatbots with extensive domain knowledge require a mix of statistical, inductive, deep machine learning and learning from the web, syntactic, semantic and discourse NLP, ontology-based reasoning and a state machine to control a dialogue. This book will provide a comprehensive source of algorithms and architectures for building chatbots for various domains based on the recent trends in computational linguistics and machine learning. The foci of this book are applications of discourse analysis in text relevant assessment, dialogue management and content generation, which help to overcome the limitations of platform-based and data driven-based approaches. Supplementary material and code is available at https://github.com/bgalitsky/relevance-based-on-parse-trees
Ferroelectric materials, in addition to possessing the unique property of a reversible, spontaneous polarization, exhibit a range of other significant and useful properties. These include high values of piezoelectric, pyroelectric, nonlinear optic, electrooptic, photorefractice and dielectric permittivity coefficients. Another fascinating property of ferroelectric materials is their photovoltaic effect. Photovoltaic effects have been extensively studied in the past in symmetric materials such as silicon. This volume is the first concentrated treatment of the characteristics, theory and potential applications of the photovoltaic effect in noncentrosymmetric materials, which include ferroelectrics and piezoelectrics. The book also deals with the relationship between the photovoltaic and the photorefractive effects. The latter has already been well-studied and is finding many applications in optical processing and computing. This volume should prove to be an important text as well as a comprehensive reference source for basic and applied researchers working on photovoltaic, photorefractive and other photoeffects in ferroelectrics and related materials.
The monograph is a summary of methods used to study pain receptors and the results obtained in some experiments designed to study the effect of non-opioid analgesics. The molecular mechanisms of nociceptive information control in primary sensory nociceptive neurons are described based on investigations of the membrane signaling cascade (opioid-like receptor → Na+,K+-ATPase → NaV1.8 channel) observed by the authors. Based on this data, the authors conclude that the modulation of NaV1.8 channels responsible for the coding of noxious signals can be carried out due to two novel targeting mechanisms. The first of these is the activation of opioid-like receptors; the second is the activation of Na+/K+-ATPase as a signal transducer. The development of a novel class of analgesics that trigger these mechanisms should lead to a successful solution to the problem of chronic pain relief. Chapters of the monograph cover the general methods used in studying nociceptive pain (including the patch-clamp method), and the mechanism behind the binding of different ligands to these receptors such gamma-pyrones, gamma-pyridines and cardiotonic steroids. This monograph is a valuable reference for neuroscientists, pharmacologists and allied researchers studying pain receptors for the development of safe and effective analgesics.
Comprehensive and state-of-the art study of the basic concepts and principles of variational analysis and generalized differentiation in both finite-dimensional and infinite-dimensional spaces Presents numerous applications to problems in the optimization, equilibria, stability and sensitivity, control theory, economics, mechanics, etc.
This handbook on group theory is geared toward chemists and experimental physicists who use spectroscopy and require knowledge of the electronic structures of the materials they investigate. Accessible to undergraduate students, it takes an elementary approach to many of the key concepts. Rather than the deductive method common to books on mathematics and theoretical physics, the present volume introduces fundamental concepts with simple examples, relating them to specific chemical and physical problems. The text is centered on detailed analysis of examples. Since neither chemists nor spectroscopists require theorem proofs, very few appear here. Instead, the focus remains on the principal conclusions, their meaning, and their use. In keeping with the text's practical bias, the main results of group theory are presented in all sections as procedures, making possible their systematic and step-by-step-application. Each chapter contains problems that develop practical skill and provide a valuable supplement to the text.
Mathematical modelling is ubiquitous. Almost every book in exact science touches on mathematical models of a certain class of phenomena, on more or less speci?c approaches to construction and investigation of models, on their applications, etc. As many textbooks with similar titles, Part I of our book is devoted to general qu- tions of modelling. Part II re?ects our professional interests as physicists who spent much time to investigations in the ?eld of non-linear dynamics and mathematical modelling from discrete sequences of experimental measurements (time series). The latter direction of research is known for a long time as “system identi?cation” in the framework of mathematical statistics and automatic control theory. It has its roots in the problem of approximating experimental data points on a plane with a smooth curve. Currently, researchers aim at the description of complex behaviour (irregular, chaotic, non-stationary and noise-corrupted signals which are typical of real-world objects and phenomena) with relatively simple non-linear differential or difference model equations rather than with cumbersome explicit functions of time. In the second half of the twentieth century, it has become clear that such equations of a s- ?ciently low order can exhibit non-trivial solutions that promise suf?ciently simple modelling of complex processes; according to the concepts of non-linear dynamics, chaotic regimes can be demonstrated already by a third-order non-linear ordinary differential equation, while complex behaviour in a linear model can be induced either by random in?uence (noise) or by a very high order of equations.
Integer Algorithms in Cryptology and Information Assurance is a collection of the author's own innovative approaches in algorithms and protocols for secret and reliable communication. It concentrates on the “what” and “how” behind implementing the proposed cryptographic algorithms rather than on formal proofs of “why” these algorithms work.The book consists of five parts (in 28 chapters) and describes the author's research results in:This text contains innovative cryptographic algorithms; computationally efficient algorithms for information assurance; new methods to solve the classical problem of integer factorization, which plays a key role in cryptanalysis; and numerous illustrative examples and tables that facilitate the understanding of the proposed algorithms.The fundamental ideas contained within are not based on temporary advances in technology, which might become obsolete in several years. The problems addressed in the book have their own intrinsic computational complexities, and the ideas and methods described in the book will remain important for years to come.
The amazing true story behind the mutiny that inspired Tom Clancy's The Hunt for Red October, by USA Today bestselling author David Hagberg and Boris Gindin, a Senior Lieutenant in the Russian navy, who stopped the mutiny and lived to tell about it. In 1984, Tom Clancy released his blockbuster novel, The Hunt for Red October, an edge-of-your seat thriller that skyrocketed him into international notoriety. The inspiration for that novel came from an obscure report by a US naval officer of a mutiny aboard a Soviet warship in the Baltic Sea. The Hunt for Red October actually happened, and Boris Gindin lived through every minute of it. After decades of silence and fear, Gindin has finally come forward to tell the entire story of the mutiny aboard the FFG Storozhevoy, the real-life Red October. It was the fall of 1975, and the tensions between the Soviet Union and the United States were climbing. It seemed the two nations were headed for thermonuclear war, and it was that fear that caused most of the crewman of the FFG Storozhevoy to mutiny. Their goal was to send a message to the Soviet people that the Communist government was corrupt and major changes were needed. That message never reached a single person. Within hours the orders came from on high to destroy the Storozhevoy and its crew members. And this would have happened if it weren't for Gindin and few others whose heroism saved many lives. Now, with the help of USA Today bestselling author David Hagberg, Gindin relives every minute of that harrowing event. From the danger aboard the ship to the threats of death from the KGB to the fear that forced him to flee the Soviet Union for the United States, Mutiny reveals the real-life story behind The Hunt for Red October and offers an eye-opening look at the Soviet Union during the height of the Cold War. At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.
This book describes methods for making accurate radar measurements of short distances in applications where physical contact with materials is impractical. Sources of error are identified, and methods of reducing these errors are described. Practical test procedures for measuring instruments are also provided. Much of the book is dedicated to providing radar engineers with practical applications, detailing the conditions, equipment, and approach of experimental estimation. With the help of computer simulation, the achievable advantages in accuracy of radar range measurement with various approaches are revealed and quantitatively estimated. Readers are also provided with methods of random process theory and mathematical statistics, along with functional analysis and optimization.
The public generally regards the media with suspicion and distrust. Therefore, the media's primary concern is to regain that trust through the production of sincerity. Advancing the field of media studies in a truly innovative way, Boris Groys focuses on the media's affect of sincerity and its manufacture of trust to appease skeptics. Groys identifies forms of media sincerity and its effect on politics, culture, society, and conceptions of the self. He relies on different philosophical writings thematizing the gaze of the other, from the theories of Heidegger, Sartre, Mauss, and Bataille to the poststructuralist formulations of Lacan and Derrida. He also considers media "states of exception" and their creation of effects of sincerity—a strategy that feeds the media's predilection for the extraordinary and the sensational, further fueling the public's suspicions. Emphasizing the media's production of emotion over the presentation (or lack thereof) of "facts," Groys launches a timely study boldly challenging the presumed authenticity of the media's worldview.
A vast literature has grown up around the value distribution theory of meromorphic functions, synthesized by Rolf Nevanlinna in the 1920s and singled out by Hermann Weyl as one of the greatest mathematical achievements of this century. The multidimensional aspect, involving the distribution of inverse images of analytic sets under holomorphic mappings of complex manifolds, has not been fully treated in the literature. This volume thus provides a valuable introduction to multivariate value distribution theory and a survey of some of its results, rich in relations to both algebraic and differential geometry and surely one of the most important branches of the modern geometric theory of functions of a complex variable. Since the book begins with preparatory material from the contemporary geometric theory of functions, only a familiarity with the elements of multidimensional complex analysis is necessary background to understand the topic. After proving the two main theorems of value distribution theory, the author goes on to investigate further the theory of holomorphic curves and to provide generalizations and applications of the main theorems, focusing chiefly on the work of Soviet mathematicians.
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