Новинка

7079 руб.

This book covers theoretical and practical aspects of a very vibrant and emerging research field; magnetization dynamics. Several large experimental facilities that focus on detection and probing magnetization dynamics have been realized in Europe, USA and Japan. This increase in experimental activity has spurred theoretical efforts in describing these measurements, which are outlined in this book. Technological aspects of magnetization dynamics are also covered in this book, e.g. as concerns information technology, as well as the magnetic counterpart to micro-electronics, i.e. magnonics and skyrmionics.
Новинка

5790 руб.

Spintronics (also known as magnetoelectronics) is an emerging technology which exploits the intrinsic spin of electrons and its associated magnetic moments, in addition to its fundamental electronic charges. Utilization of the electron’s spins has advantages such as low power consumption, and non-volatility over the conventional electronic devices. Magnetization dynamics in magnetic nanoscale devices has been intensively studied recently due to its potential in memories and logic devices. Two aspects of magnetization dynamics have been investigated in this book such as magnetic domain walls (particle-like objects) and spin waves (wave-like objects). The effect of current-induced spin transfer torque on the magnetization dynamics in which spin angular momentum from conduction electrons transfers to local magnetic moments has been explored. The main purpose of this study is in the utilization of the magnetization dynamics for device applications and each chapter of the book explores various characteristics of the magnetization dynamics.
Новинка

8925 руб.

Introduces the latest developments and technologies in the area of nonlinear aeroelasticity Nonlinear aeroelasticity has become an increasingly popular research area in recent years. There have been many driving forces behind this development, increasingly flexible structures, nonlinear control laws, materials with nonlinear characteristics, etc. Introduction to Nonlinear Aeroelasticity covers the theoretical basics in nonlinear aeroelasticity and applies the theory to practical problems. As nonlinear aeroelasticity is a combined topic, necessitating expertise from different areas, the book introduces methodologies from a variety of disciplines such as nonlinear dynamics, bifurcation analysis, unsteady aerodynamics, non-smooth systems and others. The emphasis throughout is on the practical application of the theories and methods, so as to enable the reader to apply their newly acquired knowledge. Key features: Covers the major topics in nonlinear aeroelasticity, from the galloping of cables to supersonic panel flutter. Discusses nonlinear dynamics, bifurcation analysis, numerical continuation, unsteady aerodynamics and non-smooth systems. Considers the practical application of the theories and methods. Covers nonlinear dynamics, bifurcation analysis and numerical methods. Accompanied by a website hosting Matlab code. Introduction to Nonlinear Aeroelasticity is a comprehensive reference for researchers and workers in industry and is also a useful introduction to the subject for graduate and undergraduate students across engineering disciplines.
Новинка

6890 руб.

This book presents a study of magnetization switching dynamics in ferromagnetic nanofilms and nanopillars. The dynamics of the switching process is understood by solving the Equation of motion with Gilbert damping and Equation of motion with Gilbert damping and spin transfer torque respectively both analytically and numerically. The major issues considered in the book is to identify the possible ways to reduce the switching time and to minimise the critical/threshold field or current required to induce switching in the ferromagnetic nanofilms or nanopillars. Specifically, the impact of surface / interface anisotropy on switching time and critical field/current is investigated in detail.
Новинка

13503 руб.

A long-standing unsolved problem in economic theory is how economic equilibria are attained. Price Dynamics in Equilibrium Models: The Search for Equilibrium and the Emergence of Endogenous Fluctuations considers a number of adjustment processes in different economic models and investigates their dynamical behaviour. Two important themes arising in this context are "bounded rationality" and "nonlinear dynamics". Important sub-themes of the book are the following: how do boundedly rational agents interact with their environment and does this interaction in some sense lead to rational outcomes (which may or may not correspond to equilibria)? The second sub-theme deals with the consequences of the nonlinear dynamical nature of many adjustment processes. The results presented in this volume indicate that endogenous fluctuations are the rule rather than the exception in the search for equilibrium. The book uses the theory of nonlinear dynamics to analyze the dynamics of the different economic models. Due to the complexity of most of the models, an important role is played by computational methods. In particular, at regular instances the models are analyzed by numerical simulations and some computer-assisted proofs are provided. It also covers a wide range of dynamical models from economic theory. Most of these models merge the theory of nonlinear economic dynamics with the theory of bounded rationality. The book is written for anyone with an interest in economic theory in general and bounded rationality and endogenous fluctuations in particular. It is entirely self-contained and accessible to readers with only a limited knowledge of economic theory.
Новинка

5790 руб.

The first part of this book is focused on the design of a compass robot as a nonlinear dynamics system. Three components including robot’s structure, gear and motor are interacting during design process to achieve better performance, higher stability and lower cost. After achieving the design method, different actuators are selected for a given structure and the their performance are compared in the terms of cost, efficiency and their effect on the performance. In the second part of the book, the optimization of a nonlinear system with subject to the stability constraint is investigated. Including stability analysis in the optimization process, makes it very complicated and inefficient. Limit cycle convergence is the best solution among the existing methods. In this book, an important step is taken to upgrade the optimization. A computational algorithm is developed which obtains the convergent limit cycle in a short time. This algorithm speeds up the optimization time tremendously and allows the optimization search in a broader area. Even tough a compass robot is considered as an example of the nonlinear system, this algorithm is applicable to all nonlinear dynamics systems.
Новинка

6690 руб.

The study of energy propagation and localization in optical lattices has become an important subject of research in several areas of science including mathematical physics, nonlinear optics and Bose-Einstein condensates. This book presents an original theoretical, numerical and experimental investigation of energy dynamics in nonlinear optical lattices. Theoretical work discusses nonlinear waves in both paraxial and nonparaxial regimes, the generation of solitons through nonlinear defects, the use of Lie groups in the study of ”universality” of physical models and finally ”accelerated” lattices with applications to dispersion spectroscopy. The numerical part consists in the realization of a nonlinear code to simulate light propagation in nematic liquid crystals, the latter being the material chosen for the experimental side of the work. Finally, experiments with voltage-driven nematic liquid crystals demonstrates tunable discrete diffraction, discrete solitons and their angular steering, multi-gap breathers and light driven Landau-Zener tunneling. The work discussed by this book led to the publication of 26 articles in peer-reviewed journals and 28 international conferences.
Новинка

5790 руб.

In present book are represented obtained by authors results of investigations of various unsteady problems of waves propagation in different media. In Introduction there are described obtained solutions of problems for three dimensional linear and nonlinear waves, including investigations of diffraction nonlinear problems, caustics, nonlinear quasi-monochromatic waves, narrow nonlinear gaussian beams, various unsteady mixed boundary value problems of elasticity, solved by Wiener-Hopf technique and derivation of solution in Smirnov-Sobolev form, exact 3D method of determination of frequencies of vibrations of magneto-elastic and piezo-electric plates and shells by derivation of transcendent equations and their numerical solution, as well as, in solution of problems of investigation of probabilities and prognosis for stochastic processes in various branches of science.
Новинка

10005.23 руб.

In this introductory treatment Ali Nayfeh presents different concepts from dynamical systems theory and nonlinear dynamics in a rigorous yet plan way. He systematically introduces models and techniques and states the relevant ranges of validity and applicability. The reader is provided with a clear operational framework for consciously use rather than focused on the underlying mathematical apparatus. The exposition is largely by means of examples, dealt with up to their final outcome. For most of the examples, the results obtained with the method of normal forms are equivalent to those obtained with other perturbation methods, such as the method of multiple scales and the method of averaging. The previous edition had a remarkable success by researchers from all over the world working in the area of nonlinear dynamics and their applications in engineering. Additions to this new edition concern major topics of current interest. In particular, the author added three new chapters dedicated to Maps, Bifurcations of Continuous Systems, and Retarded Systems. In particular the latter has become of major importance in several applications, both in mechanics and in different areas. Accessible to engineers and applied scientist involved with nonlinear dynamics and their applications in a wide variety of fields. It is assumed that readers have a knowledge of basic calculus as well as the elementary properties of ordinary-differential equations.
Новинка

4839 руб.

Nonlinear difference equations of order greater than one are of paramount importance in applications. Such equations appear naturally as a discrete analogues and as numerical solutions of differential equations and delay differential equations. They have models in various diverse phenomena in biology, ecology, physiology, physics, engineering and economics. Our goal in this thesis is understanding the dynamics of nonlinear difference equations to construct the basic theory of this ?led. We believe that the results of this thesis are prototypes towards the development of the basic theory of the global behavior of solutions of nonlinear difference equations of order greater than one. Now we are going to give some examples for applications of difference equations.
Новинка

5490 руб.

This book is concerned with the study of nonlinear water waves, which is one of the important observable phenomena in Nature. This study is related to the fluid dynamics, in general, and to the oceans dynamics in particular. The solutions of nonlinear PDEs with constant and variable coefficients, which describe the wave motion of undulant bores in shallow water, are investigated by using various analytical methods to illustrate the relation between solitary and water waves. The important ideas and results for nonlinear dispersive properties and solitons, which originated from the investigations of water waves, are discussed. The stability analysis for the second order system of PDEs is studied by using the phase plane method. In addition, we use perturbation methods to study the water wave problems for an incompressible fluid under the acceleration gravity and surface tension. The conservation laws of some PDEs are established. We illustrate the resulting solutions in several 3D-graphics showing the shock and solitary wave nature in the flow. This book contains many concepts of water wave motion and different mathematical methods that help researchers in the relevant topics.
Новинка

4929 руб.

Magnetization of water is an interesting process. Where the interaction of magnetic energy with water has stimulated a spreading research interests, which may be essential for widening the use of magnetized water in various areas as well as understanding the fundamental physics of such interaction. The importance of magnetized water has been arisen from its versatile use in industry, Agriculture, irrigation, medicine and many. So far, the effect of magnetic field on water has been recognized as nonlinear problem and proposed the mechanism of magnetization of water is according to the structure and distribution of its molecules.
Новинка

3549 руб.

In this Book, a new measured based friction model is developed to describe the vehicle lateral dynamics which are modeled by a so called two-track vehicle model. The effects of load transfer and the effects caused by slip angles in relation to the track width of the vehicle can be included in this model. On the other hand, the two- track vehicle model incorporates a more sophisticated tire model in order to accurately represent the tire forces and study the vehicle behavior in the nonlinear region. Simulation and experimental results show that, within a considerable range of slip angle, there is a good agreement between the simplified two-track vehicle model and the simulated test data from CarSim. A nonlinear observer for estimation of lateral velocity and yaw rate of automotive vehicles is proposed. This observer is based on yaw rate measurement in addition to steering angle, longitudinal velocity and longitudinal forces measurements. Stability of the proposed observer is investigated with Lyapunov direct method. Simulation results are presented to validate the nonlinear observer, the friction model and to explore automobile behavior in different scenarios.
Новинка

9689.44 руб.

Nonlinear problems are of interest to engineers, physicists and mathematicians and many other scientists because most systems are inherently nonlinear in nature. As nonlinear equations are difficult to solve, nonlinear systems are commonly approximated by linear equations. This works well up to some accuracy and some range for the input values, but some interesting phenomena such as chaos and singularities are hidden by linearization and perturbation analysis. It follows that some aspects of the behavior of a nonlinear system appear commonly to be chaotic, unpredictable or counterintuitive. Although such a chaotic behavior may resemble a random behavior, it is absolutely deterministic. Analytical Routes to Chaos in Nonlinear Engineering discusses analytical solutions of periodic motions to chaos or quasi-periodic motions in nonlinear dynamical systems in engineering and considers engineering applications, design, and control. It systematically discusses complex nonlinear phenomena in engineering nonlinear systems, including the periodically forced Duffing oscillator, nonlinear self-excited systems, nonlinear parametric systems and nonlinear rotor systems. Nonlinear models used in engineering are also presented and a brief history of the topic is provided. Key features: Considers engineering applications, design and control Presents analytical techniques to show how to find the periodic motions to chaos in nonlinear dynamical systems Systematically discusses complex nonlinear phenomena in engineering nonlinear systems Presents extensively used nonlinear models in engineering Analytical Routes to Chaos in Nonlinear Engineering is a practical reference for researchers and practitioners across engineering, mathematics and physics disciplines, and is also a useful source of information for graduate and senior undergraduate students in these areas.
Новинка

6690 руб.

Dynamical properties and synchronization of chaotic and hyperchaotic systems involving real variables have been studied and investigated in applied sciences over the last 30 years. There is, however, a wide variety of the physical problems which, from mathematical point of view, can be studied more conveniently by using complex variables. The dynamics of these systems is rich and complex. The aim of this monograph is to introduce and analyze some chaotic and hyperchaotic complex nonlinear systems. The basic dynamical properties of these systems are presented. The control problem of hyperchaotic attractors of these systems is also stated. Several types of synchronization of chaotic and hyperchaotic complex nonlinear dynamical systems are investigated in this monograph. This monograph is mainly addressed to graduate students and senior researchers interested in the study of chaotic and hyperchaotic complex (or real) nonlinear dynamical systems.
Новинка

7890 руб.

The physical essence of complex structures goes beyond Newton's dynamical laws. In this book systems are investigated which exhibit excitable, oscillatory and bistable behavior as basic modes of nonlinear dynamics. Addition of stochastic fluctuations contribute to the appearance of complex behavior. Bifurcations of local behavior as well as nucleation of spatially extended structures are studied. Typical fronts and spirals appear but also unusual patterns such as moving clusters and inverted waves. Methods are presented to find expressions for front velocities in the presence of system boundaries. An abstract two-state model with two waiting time distributions is considered representing excitable dynamics. Instantaneous and delayed response of the ensemble's response is analyzed. Furthermore transport and diffusion of Brownian particles in a spatio-temporal oscillating potential is discussed. As a cause of nearly dispersion-less transport synchronization mechanisms can be identified.
Новинка

6690 руб.

Turbochargers are widely used in modern vehicle engines for boosting power, improving emission and increasing energy efficiency. Apart from the obvious benefit, the complexity of their nonlinear dynamic behaviours has to be encountered. As a high speed rotating device, a modern turbocharger rotor is commonly supported by floating ring bearings. This book is particularly to focus on analyzing their interesting dynamic behaviours.
Новинка

7890 руб.

In this work, the complex dynamics of semiconductor quantum dot light emitting diode (QD-LED) without external perturbation and under direct current modulation (DCM), optoelectronic feedback (OEFB) and external optically filtering feedback (OFF) was studied. Through our understanding of mechanisms for the controlled generation of chaos in QD-LEDs, we are applied it in communication systems. In this work QD-LED was modeled in a dimensionless rate equations system where it is not done earlier. We modeled the appearance of scenario in QD-LED under different parameters. The proposed dimensionless model exhibits chaotic behavior. Furthermore, it is also able to reproduce mixed mode oscillations and stability states regimes. The bifurcation diagram of capture rate shows more control of the system dynamics
Новинка

5090 руб.

This work addresses the dynamical inverse problem of EEG source reconstruction by using two main approaches: Dynamic Inverse Problem solution considering Time Varying and Time invariant Constraints, and Weighted Dynamic Inverse Problem solution. Discussed approach of representation comprises two main contributions: Firstly, the introduction of a discrete--time nonlinear model grounded on physiological considerations that explains better the dynamics of the brain neural activity. Secondly, the inclusion of estimation of time varying parameters that allows the enhancement of the nonlinear model, making it suitable for electroencephalographic source localization of such abnormal neuronal activity as epileptic seizures. The estimation that is performed using proposed nonlinear dynamic models with time varying parameters provides an improvement in terms of reconstruction error, if comparing with similar referred linear approximations.
Новинка

9067.24 руб.

One of the first books to provide in-depth and systematic application of finite element methods to the field of stochastic structural dynamics The parallel developments of the Finite Element Methods in the 1950’s and the engineering applications of stochastic processes in the 1940’s provided a combined numerical analysis tool for the studies of dynamics of structures and structural systems under random loadings. In the open literature, there are books on statistical dynamics of structures and books on structural dynamics with chapters dealing with random response analysis. However, a systematic treatment of stochastic structural dynamics applying the finite element methods seems to be lacking. Aimed at advanced and specialist levels, the author presents and illustrates analytical and direct integration methods for analyzing the statistics of the response of structures to stochastic loads. The analysis methods are based on structural models represented via the Finite Element Method. In addition to linear problems the text also addresses nonlinear problems and non-stationary random excitation with systems having large spatially stochastic property variations. A systematic treatment of stochastic structural dynamics applying the finite element methods Highly illustrated throughout and aimed at advanced and specialist levels, it focuses on computational aspects instead of theory Emphasizes results mainly in the time domain with limited contents in the time-frequency domain Presents and illustrates direction integration methods for analyzing the statistics of the response of linear and nonlinear structures to stochastic loads Under Author Information – one change of word to existing text: He is a Fellow of the American Society of Mechanical Engineers (ASME)........
Новинка

3214 руб.

In order to model neuronal behavior or to interpret the results of modeling studies, neuroscientists must call upon methods of nonlinear dynamics. This book offers an introduction to nonlinear dynamical systems theory for researchers and graduate students in neuroscience. It also provides an overview of neuroscience for mathematicians who want to learn the basic facts of electrophysiology. Dynamical Systems in Neuroscience presents a systematic study of the relationship of electrophysiology, nonlinear dynamics, and computational properties of neurons. It emphasizes that information processing in the brain depends not only on the electrophysiological properties of neurons but also on their dynamical properties. Each chapter proceeds from the simple to the complex, and provides sample problems at the end. The book explains all necessary mathematical concepts using geometrical intuition; it includes many figures and few equations, making it especially suitable for non-mathematicians. Each concept is presented in terms of both neuroscience and mathematics, providing a link between the two disciplines. Eugene M.Izhikevich is Chairman and CEO of Brain Corporation in San Diego and was formerly Senior Fellow in Theoretical Neurobiology at the Neurosciences Institute, San Diego. He is editor-in-chief of Scholarpedia, the free peer-reviewed encyclopedia.
Новинка

7790 руб.

Applied Magnetofluid Dynamics: Modelling and Computation discusses a selection of advanced topics in linear and nonlinear flows of electrically-conducting fluids. It uses a differential equation model-building approach to study such phenomena, including in each chapter details of mathematical formulations, literature reviews, analytical and numerical solution procedures and interpretation. Many complex phenomena, not previously considered in other textbooks in magneto-fluid dynamics (MFD) are considered. These include resonance, magnetic squeeze films, non-Newtonian magneto-hydrodynamics and magneto-heat transfer from conical and rotating bodies. Applications of the models discussed range from magnetic materials processing to physiological flows and aerospace engineering. Complex variables, asymptotic methods, element free Galerkin methods, finite differences, MAPLE, homotopy, finite element, local nonsimilarity and network simulation methods are all described in detail.
Новинка

3549 руб.

In this work , A stability analysis of an eco-epidemiological model incorporating prey refuge is investigated . Two types of prey- predator models with disease in a prey incorporating prey refuge are proposed and analyzed Both models are represented mathematically by system of nonlinear differential equations. The existence, uniqueness and boundedness of the solutions of these two models and the permanence are investigated. The local and global stability conditions of all possible equilibrium points are established. Finally, numerical simulation is used to study the global dynamics of both models.
Новинка

7790 руб.

Every aircraft is a flexible body and its motion should be evaluated by the continuum mechanics. However, in the flight mechanics, they are commonly treated as rigid. In other way, in the structural dynamics scenario, rigid body modes are usually neglected. Such segregation is acceptable when sufficient separation exist between the frequencies of rigid and flexible modes. But, trends in the aircraft industry are leading to longer fuselages, larger aspect ratios, smaller thicknesses and the use of composite materials. Such configurations are more flexible and integrated models for flight mechanics and structural dynamics should be taken. This book develops the theme in a scenario of modelling, simulation and optimal control. Models of conceptual flexible aircraft are built in order to be used in control studies. A nonlinear optimal model following control is proposed. Linear solutions are developed, nonlinear approaches are also investigated, via neural networks. The technique is used to approximate the flexible aircraft as a rigid body, letting the job of controlling flexible modes to the automatic control, while an human or autopilot can see the aircraft as a usual rigid body.
Новинка

4839 руб.

In these modern research areas the Non-linear Dynamics is a very popular topic, the researchers study the nonlinear behaviour of every system which can be an industrial machine/instrument or a theoretical aspect. Prior researchers already studied the nonlinear dynamics of Current Controlled DC-DC Boost Converter. But the Power Factor Corrected Boost Converter is a circuit which is used in very practical purpose where the input is AC, the AC is rectified to DC by diode bridge rectifier and the rectified DC is to feed the boost converter i.e. conventional pure DC supply is replaced by the rectifier DC. In this converter the circuit is designed specially as input power factor can maintain unity so it is called Power Factor Corrected (PFC) Boost Converter. This book aims to develop a circuit for PFC boost converter to observe Phase-Portrait and Bifurcation diagrams with varying of load and also discuss the control of chaos and bifurcations.
Новинка

4529 руб.

The contributions of the author in the areas of Nonlinear Functional Analysis and Operator Theory have resulted to several scholarly articles, published in reputable international journals, and this book. The book is a thrilling exposure of some nonlinear operators, Banach spaces, the existence of fixed points of some nonlinear operators in certain Banach spaces and iterative sequences together with their convergence to fixed points of some nonlinear operators in Banach spaces. The application of the results obtained in the treatise can be brought to bear on contemporary problems arising in Applied Mathematics and several other disciplines such as Biology, Economics and Engineering. The book should be a spring-board for young mathematicians who have the dream of pursuing academic excellence in the areas of Nonlinear Functional Analysis and Operator Theory.
Новинка

6690 руб.

The first half of this book discusses the linear and nonlinear optimization of a storage ring lattice for SESAME project. Many aspects are used to get the optimum solution. The outcome of this study is a highly compact lattice which offers 41 % of the 133.2 m ring circumference as straight sections dedicated for Insertion Devices and other needs. The importance of including the vacuum chamber limitations in the nonlinear calculations is proved in SESAME case. This is supported by the results of Frequency Map Analysis. In the second half of the book a low momentum compaction factor optics is proposed for the storage ring of Synchrotron SOLEIL in France. This optics has the advantage of keeping the horizontal emittance small. This optics has been successfully applied to SOLEIL storage ring, and the Coherent Synchrotron Radiation in the THz region has been observed on an Infra Red beamline. During these experiments three beams have been observed rotating simultaneously in the storage ring. This phenomenon, which was the first seen in storage ring at that time, is explained and simulated by expanding the longitudinal dynamics to third order.
Новинка

7890 руб.

The aim of this book is to present new series approximation methods for solving linear and nonlinear differential equations which arising in applied Sciences. These procedures applied on fluid dynamics problems, population model equations, oscillator problems, fractional order equation, batch reactor equation and the Riccati's differential equations. It is interesting to note that these methods give the analytic and numerical results.
Новинка

4839 руб.

This book investigates the nonlinear behavior of circular plates under different types of loadings and physical fields, namely, thermal, electrostatic, and mechanical. The approaches used were perturbation and numerical techniques applied on different applications ranging from aerospace to micro-electro-mechanical systems (MEMS). The book should be of value to R&D engineers, researchers, and postgraduate students in Engineering and physics as well.
Новинка

6690 руб.

Model predictive control (MPC) is an important industrial control technique. Most conventional MPC schemes use linear models. However, the use of linear models can result in a serious deterioration of control performance with many types of nonlinear plants. Feedback linearisation is an important nonlinear control technique which can transform a nonlinear system into a linear system. Dynamic neural networks have the ability to approximate multi-input multi-output general nonlinear systems and have the differential equation structure. This book presents a hybrid control strategy integrating dynamic neural networks and feedback linearisation into a predictive control scheme. This book can be used as a course textbook, a source for practising control engineers with an interest in nonlinear control techniques and also a reference material for academic researchers in nonlinear control theory.
Новинка

11318.42 руб.

The capability to predict the nonlinear response of beams, plates and shells when subjected to thermal and mechanical loads is of prime interest to structural analysis. In fact, many structures are subjected to high load levels that may result in nonlinear load-deflection relationships due to large deformations. One of the important problems deserving special attention is the study of their nonlinear response to large deflection, postbuckling and nonlinear vibration. A two-step perturbation method is firstly proposed by Shen and Zhang (1988) for postbuckling analysis of isotropic plates. This approach gives parametrical analytical expressions of the variables in the postbuckling range and has been generalized to other plate postbuckling situations. This approach is then successfully used in solving many nonlinear bending, postbuckling, and nonlinear vibration problems of composite laminated plates and shells, in particular for some difficult tasks, for example, shear deformable plates with four free edges resting on elastic foundations, contact postbuckling of laminated plates and shells, nonlinear vibration of anisotropic cylindrical shells. This approach may be found its more extensive applications in nonlinear analysis of nano-scale structures. Concentrates on three types of nonlinear analyses: vibration, bending and postbuckling Presents not only the theoretical aspect of the techniques, but also engineering applications of the method A Two-Step Perturbation Method in Nonlinear Analysis of Beams, Plates and Shells is an original and unique technique devoted entirely to solve geometrically nonlinear problems of beams, plates and shells. It is ideal for academics, researchers and postgraduates in mechanical engineering, civil engineering and aeronautical engineering.
Новинка

7790 руб.

Multibody spacecraft are used in a wide range of applications in near-Earth space, from manned space stations to unmanned space telescopes. Such systems cannot be modeled as point mass particles. Their dynamics are quite complex, being characterized by linear and nonlinear coupling between different degrees of freedom. This work explores how such dynamical coupling can be used to make changes in orbit and attitude using internal motions in a controlled manner. The methods outlined here lead to control maneuvers for multibody spacecraft without using chemical fuel. With increasing risks to space assets in Earth orbits from space debris, such control methods are both timely and valuable.
Новинка

5490 руб.

In system dynamics models, distributions for uncertain parameters are required for testing model sensitivity. As well in the same context, it could be used to test sensitivity and robustness for new policies. Moreover, these distributions could be used for confidence intervals estimation and hypothesis testing. Residual bootstrapping technique (RBT) is one of bootstrapping techniques that could be used for estimating parameters distributions for system dynamics models. RBT is a statistical technique based on resampling residuals for fabricating “new historical data”. These new historical data is used to fit the model and get new estimates for the parameters. Repeating this many times will generate many estimates for the parameter(s). In this work a proposed method based on RBT is used to improve the bias that could be resulted from estimation. The commodity cycle model for hogs in USA is used as case study. Some table relationships in this model have been replaced by nonlinear functions. RBT is used for estimating parameters distributions for these nonlinear functions.
Новинка

6690 руб.

The study of systems of nonlinear differential equations will be very useful to analyze the possible past or future outcomes with the help of present information in any natural dynamical systems. The present book studies some autonomous nonlinear systems of ordinary differential equations. It focuses on their applications to population dynamics problems in mathematical ecology. In particular, the following aspects are the main objectives of the present work: I) The stability of the equilibrium points. II) The behavior of solution around equilibrium points. The first chapter presents some standard basic concepts, definitions, notations, theorems and methods. The second chapter is devoted to the study of Kolmogrov models of population dynamics; Rosenweig-Mac Artur model; including competition and coexistence factors for mutual benefit of two species. The third and fourth chapters analyze the extended Lotka-Volterra predator-prey models including intraspecies factors. The behavior of solution around these equilibrium points are studied in detail.
Новинка

6390 руб.

Nonlinear Optics (NLO) deals with the interactions of applied electromagnetic fields in various materials to generate new electromagnetic field altered in phase, frequency, amplitude or other physical properties. The nonlinear optical properties of materials play a role in many applications. The second order nonlinear response has a wide range of applications in the field of telecommunications; optical computing, storage and information processing etc. The third-order nonlinear optical response is important in all-optical switching, signal processing, and ultrafast optical communications. The objectives of the book covers synthesis and growth of bulk single crystals of organic nonlinear optical materials; Characterization of grown crystals by X-ray, thermal, mechanical and spectral techniques; Investigating the linear and nonlinear optical properties of the materials; provides a firm relationship between nonlinear optical property and molecular structure of the materials. The book consists of eight chapters. The extensive studies of the above objectives are presented in these chapters.
Новинка

4839 руб.

The use of Quadrotor UAVs has been widely well known. It has capability to hover, vertical take-off and landing (VTOL) with having less complexity in vehicle dynamics compared with small helicopter. It is basically an unstable system and exhibits nonlinear behavior. This book describes the development of nonlinear model of quadrotor dynamics derived from Newton-Euler formulation and presented under Matlab/Simulink environment. The Model is equipped by Stability Augmentation System (SAS) to maintain the quadrotor level flight (attitude stability). The autonomous mission for this vehicle is fixed for trajectory following. LQR Optimal control was chosen to accomplish this mission.
Новинка

4839 руб.

The purpose of this monograph is to provide illustrative examples of nonlinear modeling of oceanic and atmospheric dynamics and associated energetic. Particularly,exact solutions for the Navier-Stokes equations and the corresponding energy balance associated with an atmospheric motion around the Earth are presented. Additionally,nonlinear internal gravity waves forming a column of stratified fluid affected by the Earth's rotation are considered. In terms of linear modeling,the energy density was visualized as spinning patterns that appear to be rotating in an anticlockwise sense. Such spinning patterns were compared with the flow around a low-pressure area that is usually being linked with a modeling of hurricanes. In terms of nonlinear analysis,several classes of exact solutions were found.One particular class was visualized as funnels having something in common with the geometric structure of oceanic whirlpools. Up to the present,it remains an open issue where the whirlpools came from and what surprises they may bring to. However,it is recognized that the oceanic whirlpools play a key role in global climate. Additionally,such whirlpools show influence on the atmosphere.
Новинка

5790 руб.

This work explores the dynamics of a three-dimensional four-bar mechanical linkage subject to random external forcing. The Lagrangian formulation of the equations of motion are index-3 stochastic differential-algebraic equations (SDAE) that describe the time evolution of the sample paths of the generalized coordinates, velocities, and Lagrange multipliers as stochastic processes. We numerically solve the SDAEs using two different approaches: inverse dynamics, Case Study 1, via independent, successive solution of the nonlinear equations for each kinematic variable, where the time evolution of one generalized coordinate is prescribed; and direct dynamics, Case Study 2, via direct solution of the SDAEs in the index-1 formulation, using fourth-order stochastic backward differentiation formula (BDF) with modified Newton iteration and position and velocity stabilization, where the (deterministic) input driving torque is prescribed.
Новинка

4839 руб.

Great efforts have been made these last decades to understand phenomena occurring at microscopic scale. At this stage, classical physics alone can not describe the dynamics of a system be it regular or nonlinear complex one. This book deals with the dynamics of classically regular systems under several polynomial and sinusoidal potentials. We both analytically and numerically study the extended semiquantum dynamics through the introduction of quantum fluctuation degrees of freedom in a time dependent variational principle using generalized Gaussian wave function. After a literature review on the topic, the methodology is widely exposed. At last we present the main results of this work on: the cubic-quartic potential with the modulational instability criterion in the case of wave propagation; the triple and multiple well adjustable potential heterostructures; the sinusoidal potential model with the torsional dynamics of butane molecule. The analysis and results presented in this book shall help shed light on these new and exciting mesoscopic investigations, and should be especially useful to researchers in quantum fundamental and experimental physics to prevent unexpected phenomena.
Новинка

3549 руб.

The current book is a review of author research about nonlinear dynamics in optically injected semiconductor laser. a) A new method is introduced to measure the thickness and refractive index of transparent thin films by Self-mixing interferometry which is an important application of weak optical feedback in semiconductor lasers. b) The regimes of perturbation in a laser diode subjected to delayed optical feedback (DOF) from an external reflector is numerically analyzed from short to long cavity and from weak to strong optical feedback.
Новинка

3589 руб.

The present monography is dedicated to a fashionable trend in nonlinear analysis - the theories of blow-up of solutions for final time. In this book nonlinear Sobolev type equations are systematically studied. The book will be interesting both to experts in the field of nonlinear analysis and to students and post-graduate students of the corresponding specialties.
Новинка

6890 руб.

Most of the practical systems including aircraft system dynamics are nonlinear and stochastic in nature, so the linearized models without having accurate knowledge of noise characteristics to them may lead to inaccurate results and poor performance. In the presence of measurement & process noise, the parameters estimates of dynamic systems are asymptotically biased, inconsistent and inefficient. In the case of state estimation of nonlinear system, researchers have been proposed to design observers using Lyapunov theory based stability analysis. The selection of Lyapunov function is not easy in practice as it does not have specific guidelines for such selection. Contraction theory is an alternative approach to visualize the stability results for nonlinear system, & exploits the incremental behavior of the trajectories of a system with respect to each other. The stability analysis using contraction theory eliminates the selection of Lyapunov function and its extension to stochastic nonlinear system is an active research area. This book is focused on system identification of aircraft system from noisy data, and stability analysis of aircraft system in stochastic contraction framework.
Новинка

1747.79 руб.

This book covers the principles of modeling and simulation of nonlinear distortion in wireless communication systems with MATLAB simulations and techniques In this book, the author describes the principles of modeling and simulation of nonlinear distortion in single and multichannel wireless communication systems using both deterministic and stochastic signals. Models and simulation methods of nonlinear amplifiers explain in detail how to analyze and evaluate the performance of data communication links under nonlinear amplification. The book addresses the analysis of nonlinear systems with stochastic inputs and establishes the performance metrics of communication systems with regard to nonlinearity. In addition, the author also discusses the problem of how to embed models of distortion in system-level simulators such as MATLAB and MATLAB Simulink and provides practical techniques that professionals can use on their own projects. Finally, the book explores simulation and programming issues and provides a comprehensive reference of simulation tools for nonlinearity in wireless communication systems. Key Features: Covers the theory, models and simulation tools needed for understanding nonlinearity and nonlinear distortion in wireless systems Presents simulation and modeling techniques for nonlinear distortion in wireless channels using MATLAB Uses random process theory to develop simulation tools for predicting nonlinear system performance with real-world wireless communication signals Focuses on simulation examples of real-world communication systems under nonlinearity Includes an accompanying website containing MATLAB code This book will be an invaluable reference for researchers, RF engineers, and communication system engineers working in the field. Graduate students and professors undertaking related courses will also find the book of interest.
Новинка

3925 руб.

Nonlinear Econometric Modeling in Time Series Analysis presents recent developments in this important area of research. This is the first volume to focus on the more recent literature on nonlinear time series. Specific topics covered with respect to nonlinearity include cointegration tests, risk-related asymmetries, structural breaks and outliers, Bayesian analysis with a threshold, consistency and asymptotic normality, asymptotic inference, and error-correction models.
Новинка

5790 руб.

The basic concepts leading to some of the hot carrier driven steady-state and transient second and third-order nonlinear optical processes such as parametric interaction, amplitude modulation demodulation, frequency modulation and stimulated Brillouin scattering in diffusive semiconductors and their applications to parametric oscillator, amplifier and phenomena like optical communication and phase conjugation in presence of magnetostatic field is discussed in detail. These nonlinear processes in diffusive semiconductors are described with emphasis on the physical reason for their occurrence.
Новинка

9692.57 руб.

Nonlinear System Identification: NARMAX Methods in the Time, Frequency, and Spatio-Temporal Domains describes a comprehensive framework for the identification and analysis of nonlinear dynamic systems in the time, frequency, and spatio-temporal domains. This book is written with an emphasis on making the algorithms accessible so that they can be applied and used in practice. Includes coverage of: The NARMAX (nonlinear autoregressive moving average with exogenous inputs) model The orthogonal least squares algorithm that allows models to be built term by term where the error reduction ratio reveals the percentage contribution of each model term Statistical and qualitative model validation methods that can be applied to any model class Generalised frequency response functions which provide significant insight into nonlinear behaviours A completely new class of filters that can move, split, spread, and focus energy The response spectrum map and the study of sub harmonic and severely nonlinear systems Algorithms that can track rapid time variation in both linear and nonlinear systems The important class of spatio-temporal systems that evolve over both space and time Many case study examples from modelling space weather, through identification of a model of the visual processing system of fruit flies, to tracking causality in EEG data are all included to demonstrate how easily the methods can be applied in practice and to show the insight that the algorithms reveal even for complex systems NARMAX algorithms provide a fundamentally different approach to nonlinear system identification and signal processing for nonlinear systems. NARMAX methods provide models that are transparent, which can easily be analysed, and which can be used to solve real problems. This book is intended for graduates, postgraduates and researchers in the sciences and engineering, and also for users from other fields who have collected data and who wish to identify models to help to understand the dynamics of their systems.
Новинка

13895 руб.

It is now widely recognized that the climate system is governed by nonlinear, multi-scale processes, whereby memory effects and stochastic forcing by fast processes, such as weather and convective systems, can induce regime behavior. Motivated by present difficulties in understanding the climate system and to aid the improvement of numerical weather and climate models, this book gathers contributions from mathematics, physics and climate science to highlight the latest developments and current research questions in nonlinear and stochastic climate dynamics. Leading researchers discuss some of the most challenging and exciting areas of research in the mathematical geosciences, such as the theory of tipping points and of extreme events including spatial extremes, climate networks, data assimilation and dynamical systems. This book provides graduate students and researchers with a broad overview of the physical climate system and introduces powerful data analysis and modeling methods for climate scientists and applied mathematicians.
Новинка

5790 руб.

The purpose of this thesis is the study of the influence of impurities on the nucleation rate of kink-antikink pairs in nonlinear deformable systems. We study the dynamics of solitary waves in the generalized Frenkel-Kontorova (GFK) model, discussed about kink pro?les and energy in the continuum limit of this model and present Some conclusions concerning the interactions of kink in the system.The influence of the Gaussian approximation on the nucleation rate of kink-antikink pairs in a nonlinear deformable chain is performed and a new formula for the nucleation rate of kink-antikink pairs is determined. Using the Kolmogorov method in the GFK model in the presence of external forces and impurities, we set o? analytical expression of the nucleation rate in the system. A Numerical application of this theory is made by using existing data. We end by investigating the role of the applied ?eld on the nucleation process in an inhomogeneous deformable chain. The Hamiltonian formalism allows us to model the system. We derive numerically the depinning threshold ?eld of the system and show the in?uence of the deformability of the impurity potential on this depinning threshold ?eld.
Новинка

5790 руб.

The active area of research investigation during the past sixty years has been the study of solitons and related nonlinear real world phenomena that cannot be explained with the linear evolution equations. A Lagrangian based approach has been derived to study the properties of the nonlinear evolution equations. This book will provide the background of fundamental ideas and classical Lagrangian approach to understand nonlinear real-world wave phenomena, soliton dynamics, symmetry, supersymmetric realization and some important methods for solving the nonlinear equations up to the level of present-day active research on these and related topics. I hope this will stimulate future research on understanding the nonlinear problems and may be a useful source book for researchers, graduate students enrolled in M.S and Ph.D degree programs. Considering the multidisciplinary nature and important applications almost all universities offer a high-level graduate course devoted to frontier topics like nonlinear wave theory, integrable systems, solitons, symmetry and supersymmetry. It will be a useful text for graduate and senior-level courses dealing with above topics.
Новинка

7250.67 руб.

This book will provide insight into the principles and applications of nonlinear effects in fibers for students, researchers, and developers who have a basic understanding of electromagnetic theory under their belts. It will explore the physics, limitations, applications, and research results surrounding nonlinear effects in fiber optics. In addition to communications, optical fibers are already used in medical procedures, automobiles, and aircraft and are expected to have many other applications. This will expand the range of industry workers who will find a book of this type useful.
Новинка

4929 руб.

This book describes a frequency domain model to predict the far-field broadband noise. Nonlinear wave propagation is observed in the noise created by many sources such as fighter jet aircraft, explosions, gunfire, sonic booms etc. This nonlinear behavior, which includes the transfer of energy to high frequencies from central and lower frequencies, is captured in the present algorithm. The numerical model solves the generalized nonlinear Burger’s equation and accurately captures the nonlinear affects in broadband high-speed jet noise propagation. A literature review in this field is also provided and the existing noise prediction algorithms are compared with the present work.
Новинка

5790 руб.

The linear (nonlinear) propagation of the dust-acoustic waves in a nonuniform (two-ion-temperature) dusty plasma has been rigorously investigated. The linear part is aimed to examine the effects of dust density nonuniformity and the polarization force (PF), consists of electrons, ions and inertial arbitrarily charged dust whereas nonlinear part is concerned with solitary waves and double layers with two-ion-temperature plasma. Comprehensive and up-to-date theme of PF inherits from nonuniformity, would substantially assist anyone to gain a thorough knowledge including its mountingly consequential roles in linear wave dynamics. Nonlinear Gardner solitons exist around the critical value. The emphasis of PF is laid more on the fundamental principles as well as its implications, contemporary applications, from recent reviews than on minute details. Our present survey relevant to the electrostatic linear-nonlinear structures observed in cosmic and laboratory plasmas, is of utmost importance.
Новинка

7790 руб.

This book presents a wavelet based multiscale nonlinear framework for hydrologic forecasting problems. The methodology is proposed for efficient forecasting of complex systems such as hydrologic system which is characterized by multiscale and nonlinear dynamics. The multiscale model is developed by coupling wavelets and second order volterra kernals. The proposed method is applied to various hydrological problems like stream flow forecasting, groundwater level and flood forecasting. Further, one chapter of the book is fully dedicated in discussing the practical issues related to wavelets application in forecasting. Finally, case studies related to non-hydrologic systems are also covered. The students and practitioners in the are of hydrology, environment and water resources will find this book interesting for their academic curricula and research projects.
Новинка

1747.79 руб.

Starting with an introduction to the fundamental physics in chaotic instabilities in laser systems, this comprehensive and unified reference goes on to present the techniques and technology of synchronization of chaos in coupled lasers, as well as the many applications to lasers and optics, communications, security and information technology. Throughout, it presents the current state of knowledge, including encoding/decoding techniques, performance of chaotic communication systems, random number generation, and novel communication technologies.
Новинка

5790 руб.

There has been a great interest in Guided waves which have wide applications in optical fibers, phase shifters in optics and telecommunications. This book describes the propagation characteristics of nonlinear electromagnetic surface waves (modes) along the boundary of a linear gyromagnetic medium and various nonlinear dielectric structures . The dispersion relation for TE and TM surface waves (modes) guided by a lateral antiferromagnetic/ nonmagnetic superlattices (LANS) of frequency dependent permeability tensor and a nonlinear dielectric cladding or nonlinear magnetic cladding has been investigated. Also the stability which has been investigated and reported here may provide new opportunities for the design of microwave-photonic devices such as receivers of radio telescope, reflection and transmission filters.
Новинка

2020 руб.

The Law of Primitive Man – A Study in Comparative Legal Dynamics
Новинка

6890 руб.

In the present book, Chapter-I is an introductory one. It gives general introduction about the nonlinear regression models. A brief review about the existing inferential procedures for nonlinear regression models has been give in Chapter-II. It contains various nonlinear methods, of estimation based on nonlinear least squares and maximum likelihood methods, besides the methods by using some numerical analysis procedures.Chapter-II and IV describe the specification and estimation of some important nonlinear production function models such as Cobb-Douglas, Constant Elasticity of Substitution (CES), Variable Elasticity of Substitution (VES) and Transcedental Logarithmic (Translog) Production functions. Some new Inferential procedures for certain nonlinear regression models have been proposed and developed in Chapter V. The directions for further research along with the conclusions have been presented in Chapter-VI. General selected references regarding nonlinear regression models have been documented under Bibliography.
Новинка

4641 руб.

Solution Manual for Recusive Methods in Economic Dynamics
Новинка

5790 руб.

An experiment and theoretical analysis have been done to measure the nonlinear refractive index n2 of LiNbO3 for different three wavelengths laser light of a continuous Ar-ion laser and observe the variation of the value and sign of the nonlinear refractive index. The Z-scan is a simple technique for measuring the change in phase induced on a laser beam upon propagation through a nonlinear material. It gives both the sign and magnitude of this phase change , which is simply related to the change in index of refraction, . For different wavelength the sign and the value of index of refraction is different. Additionally, for third-order nonlinear responses the real part of the third-order nonlinear susceptibility, , can be measured. However, Z- scan is sensitive to any nonlinear processes which results in , so that great care must be taken in interpreting data taken with this or any other nonlinear materials characterization technique.
Новинка

9390 руб.

Work presented in this book introduce new approaches to designing robust nonlinear controllers for a class of nonlinear uncertain systems. It integrates the conventional feedback linearization method with the robust control schemes such as minimax LQR and minimax LQG controllers in a systematic way. The main objective of this research is to apply the proposed method to the case of an air-breathing hypersonic flight vehicle (AHFV) control problem. In this work, we consider both rigid and flexible nonlinear models of a hypersonic flight vehicle and synthesized velocity and altitude nonlinear tracking controllers by using minimax LQR and minimax LQG controllers. The main reason to use minimax control theory is that it gives a systematic way to design a robust controller and also allows for time varying uncertainty. Nonlinear System Identification: NARMAX Methods in the Time, Frequency, and Spatio-Temporal Domains describes a comprehensive framework for the identification and analysis of nonlinear dynamic systems in the time, frequency, and spatio-temporal domains. This book is written with an emphasis on making the algorithms accessible so that they can be applied and used in practice. Includes coverage of: The NARMAX (nonlinear autoregressive moving average with exogenous inputs) model The orthogonal least squares algorithm that allows models to be built term by term where the error reduction ratio reveals the percentage contribution of each model term Statistical and qualitative model validation methods that can be applied to any model class Generalised frequency response functions which provide significant insight into nonlinear behaviours A completely new class of filters that can move, split, spread, and focus energy The response spectrum map and the study of sub harmonic and severely nonlinear systems Algorithms that can track rapid time variation in both linear and nonlinear systems The important class of spatio-temporal systems that evolve over both space and time Many case study examples from modelling space weather, through identification of a model of the visual processing system of fruit flies, to tracking causality in EEG data are all included to demonstrate how easily the methods can be applied in practice and to show the insight that the algorithms reveal even for complex systems NARMAX algorithms provide a fundamentally different approach to nonlinear system identification and signal processing for nonlinear systems. NARMAX methods provide models that are transparent, which can easily be analysed, and which can be used to solve real problems. This book is intended for graduates, postgraduates and researchers in the sciences and engineering, and also for users from other fields who have collected data and who wish to identify models to help to understand the dynamics of their systems.