Mathematical Problems in Engineering articles from January 1 2009

Mathematical Problems in Engineering archives from January 1 2009

Using of H-infinity control method in attitude control system of rigid-flexible satellite.(Research Article)(Report)
January 1, 2009... 1. Introduction The rapidly complexity increase of systems and processes to be controlled has stimulated the development of sophisticated analysis and design methods called advanced techniques. The H-Infinity ([H.sub.[infinity]]) control...

Output feedback stabilization of linear time-varying uncertain delay systems.(Research Article)(Report)
January 1, 2009... 1. Introduction This paper examines the stabilization problem of linear time-varying uncertain delay systems by means of linear memoryless state feedback control. The systems under consideration contain uncertain entries in the system...

MRA Parseval frame wavelets and their multipliers in [L.sup.2]([R.sup.n]).(Research Article)(multiresolution analysis)(Report)
January 1, 2009... 1. Introduction Wavelet theory has been studied extensively in both theory and applications since 1980's (see [1-3]). One of the basic advantage of wavelets is that an even can be simultaneously described in the frequency domain as well as in...

Flux reflection model of the ferroresonant circuit.(Research Article)(Report)
January 1, 2009... 1. Introduction A ferroresonant circuit is a circuit which comprises a linear capacitor in series with a nonlinear coil, driven by a sine-wave voltage. The ferroresonant circuit can exhibit several bifurcations and a chaotic steady state...

A deflection-based bridge diagnosis method.(Research Article)(Report)
January 1, 2009... 1. Introduction Structural health monitoring (SHM) means the process of monitoring the condition of a structure and detecting the damages occurring in the structure over the time. SHM is a highly interdisciplinary area of research. In...

Gravitational capture of asteroids by gas drag.(Research Article)(Report)
January 1, 2009... 1. Introduction The giant planets of the Solar System have two kinds of satellites, the regular and the irregular ones [1]. This definition was based on the orbits of the satellites. The regular satellites have their orbits near the...

Internal loading distribution in statically loaded ball bearings subjected to an eccentric thrust load.(Research Article)(Report)
January 1, 2009... 1. Introduction Ball and roller bearings, generically called rolling bearings, are commonly used machine elements. They are employed to permit rotary motions of, or about, shafts in simple commercial devices such as bicycles, roller skates,...

Dynamical aspects of an equilateral restricted four-body problem.(Research Article)(Report)
January 1, 2009... 1. Introduction Dynamical systems with few bodies (three) have been extensively studied in the past, and various models have been proposed for research aiming to approximate the behavior of real celestial systems. There are many reasons for...

UPFC location and performance analysis in deregulated power systems.(Research Article)(unified power flow controller)(Report)
January 1, 2009... 1. Introduction Limitations in transmission and generation system expansion, such as right-of-way and environmental problems, have made it inevitable to use the current network capacity as much as possible [1]. The competition in a...

A discussion related to orbit determination using nonlinear sigma point Kalman filter.(Research Article)(Report)
January 1, 2009... 1. Introduction In orbit determination of artificial satellites, the dynamic system and the measurements equations are of nonlinear nature. It is a nonlinear problem in which the disturbing forces are not easily modeled. The problem consists...

Orbital dynamics of a Simple Solar Photon Thruster.(Research Article)(Report)
January 1, 2009... 1. Introduction The use of solar pressure to create propulsion can minimize spacecraft on-board energy consumption during a mission [1, 2]. Modern materials and technologies made this propulsion scheme feasible, and many projects of solar...

Spin-stabilized spacecrafts: analytical attitude propagation using magnetic torques.(Research Article)(Report)
January 1, 2009... 1. Introduction This paper aims at analyzing the rotational motion dynamics of spin-stabilized Earth's artificial satellites, through derivation of an analytical attitude prediction. Emphasis is placed on modeling the torques steaming from...

Extended Stokes' problems for relatively moving porous half-planes.(Research Article)(Report)
January 1, 2009... 1. Introduction After Stokes presented the significant paper [1] on pendulums in which the problems of the impulsive and oscillatory motions of a plane were studied, numerous studies based on his idea were subsequently carried out. In the...

Color-texture-based image retrieval system using Gaussian Markov random field model.(Research Article)(Report)
January 1, 2009... 1. Introduction Much attention has been devoted to the design of image databases over the past few years [1-8]. Image retrieval is an important task in many image database applications, such as office automation, medical image archiving,...

Robust stability analysis of fuzzy neural network with delays.(Research Article)(Report)
January 1, 2009... 1. Introduction For the study of current neural network, two basic mathematical models are commonly adopted: either local field neural network models or static neural network models. The basic model of local field neural network is described...

Simulations under ideal and nonideal conditions for characterization of a passive Doppler geographical location system using extension of data reception network.(Research Article)(Report)
January 1, 2009... 1. Introduction This work presents the validation, through software simulations, of the passive Doppler GEOLOC system using extended DRN. The Doppler measurements data of a single satellite pass over a (Data Collecting Platform) DCP,...

Collision and stable regions around bodies with simple geometric shape.(Research Article)(Report)
January 1, 2009... 1. Introduction The aim of this paper is to study the phase space of trajectories around some homogeneous bodies with well-defined simple geometric shapes. Closed-form expressions derived for the gravitational potential of the rectangular and...

Transient MHD double-diffusive natural convection over a vertical surface embedded in a non-darcy porous medium.(Research Article)(magnetohydrodynamics)(Report)
January 1, 2009... 1. Introduction Recently, heat and mass transfer from different geometries embedded in fluid saturated porous medium has been studied extensively. This is due to the fact that these flows have many engineering and geophysical applications...

Elastic buckling behaviour of a four-lobed cross section cylindrical shell with variable thickness under non-uniform axial loads.(Research Article)(Report)
January 1, 2009... 1. Introduction The use of cylindrical shells which have noncircular profiles is common in many fields, such as aerospace, mechanical, civil and marine engineering structures. The displacement buckling modes of thin elastic shells essentially...

The impact on geographic location accuracy due to different satellite orbit ephemerides.(Research Article)(Report)
January 1, 2009... 1. Introduction The Brazilian System of Environmental Data Collection (SBCDA) can be organized in three subsystems: the space subsystem, the data collection ground subsystem, and the tracking and control ground segment [1, 2]. The space...

Thermal radiation effects on heat and mass transfer over an unsteady stretching surface.(Research Article)(Report)
January 1, 2009... 1. Introduction The continuous surface heat and mass transfer problem has many practical applications in industrial manufacturing processes. The knowledge of flow and heat and mass transfer within a thin liquid film is crucial in...

Improvements in geometry-based secret image sharing approach with steganography.(Research Article)(Report)
January 1, 2009... 1. Introduction Low cost, fast and reliable networking has increased the data transmitted beyond expectations over the public access network, the Internet. Though it is a public access network, certain data need secrecy during transmission...

Atmospheric reentry dynamics of conic objects.(Research Article)(Report)
January 1, 2009... 1. Introduction In the case of natural reentries (non-controlled), the orbital evolution of an object can only be monitored, with no or limited ability to control risks. The time window for reentry of a satellite is usually provided with a...

A Fourier approach to model electromagnetic fields scattered by a buried rectangular cavity.(Research Article)(Report)
January 1, 2009... 1. Introduction The cavity problem has been extensively studied due to its importance in the computation of radar cross section. A two-dimensional cavity can be used to model long seems or cracks in metallic surfaces which can significantly...

Computationally efficient technique for solving ODE systems exhibiting initial and boundary layers.(Research Article)(ordinary differential equations)(Report)
January 1, 2009... 1. Introduction Singularly perturbed problems involving a small parameter are ubiquitous in the field of engineering and present a formidable challenge in their numerical solution. For example, in the field of fluid mechanics such problems...

Quality of TEC estimated with Mod_Ion using GPS and GLONASS data.(Research Article)(global positioning system, Global'naya Navigatsionnaya Sputnikowaya Sistema and total electron content)(Report)
January 1, 2009... 1. Introduction The Global Navigation Satellite System (GNSS) is one of the most advanced technologies and has revolutionized the activities related to navigation and positioning from space technology. A main component of GNSS is the Global...

Some initial conditions for disposed satellites of the systems GPS and Galileo constellations.(Research Article)(Report)
January 1, 2009... 1. Introduction Broadly speaking, the GPS, GLONASS, and Galileo [1] systems are satellite constellations which were designed mainly for positioning and navigation purposes. The first members of GPS (block I) originally were designed to have...

Variation of the equator due to a highly inclined and eccentric disturber.(Research Article)(Report)
January 1, 2009... 1. Introduction Some years ago, the exploration of the Neptune system in the next ten years was posed as an important priority of NASA's Solar System Exploration theme [1]. Although the New Horizons project is now the top priority for the far...

Solving nonlinear boundary value problems using He's polynomials and Pade approximants.(Research Article)(Report)
January 1, 2009... 1. Introduction With the rapid development of nonlinear sciences, many analytical and numerical techniques have been developed by various scientists for solving singular and nonsingular initial and boundary value problems which arise in the...

Application of variational iteration method to fractional hyperbolic partial differential equations.(Research Article)(Report)
January 1, 2009... 1. Introduction It is known that various problems in fluid mechanics (dynamics, elasticity) and other areas of physics lead to fractional partial differential equations. Methods of solutions of problems for fractional differential equations...

Maintenance in single-server queues: a game-theoretic approach.(Research Article)(Report)
January 1, 2009... 1. Introduction In this paper we use a game-theoretic analysis for a single-server queue with maintenance. When the queue becomes empty, the server leaves the system. It is usually associated with vacations. However, in our case, the server...

A Galerkin-parameterization method for the optimal control of smart microbeams.(Research Article)(Report)
January 1, 2009... 1. Introduction Devices of Microelectromechanical systems (MEMSs) find wide applications as sensors and actuators. The analysis of methods of actuation and sensing has been a topic of interest over the past several years. Different actuation...

Further results concerning delay-dependent [H.sub.[infinity]] control for uncertain discrete-time systems with time-varying delay.(Research Article)(Report)
January 1, 2009... 1. Introduction During the past decades, considerable attention has been paid to the problems of stability analysis and control synthesis of time-delay systems. Many methodologies have been proposed and a large number of results have been...

Competition between plasmid-bearing and plasmid-free organisms in a chemostat with pulsed input and washout.(Research Article)(Report)
January 1, 2009... 1. Introduction The chemostat, a laboratory apparatus used for the continuous culture of microorganisms, has played an important role in microbiology and population biology. It is the most simple idealization of a biological system where the...

Hill problem analytical theory to the order four: application to the computation of frozen orbits around planetary satellites.(Research Article)(Report)
January 1, 2009... 1. Introduction Besides its original application to the motion of the Moon [1], the Hill problem provides a good approximation to the real dynamics of a variety of systems, encompassing the motion of comets, natural and artificial satellites,...

Modeling experimental nonlinear dynamics and chaotic scenarios.(Editorial)(Editorial)
January 1, 2009... Thinking about nonlinearity in engineering areas, up to the 70s, was focused on intentionally built nonlinear parts in order to improve the operational characteristics of a device or system. Keying, saturation, hysteretic phenomena, and dead...

Self-similar solutions for nonlinear Schrodinger equations.(Research Article)(Report)
January 1, 2009... 1. Introduction This paper is concerned with the following Cauchy problem for the nonlinear Schrodinger type equation: [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII.] (1.1) where [mu] [member of] R is a constant, m [greater than or...

Can drag force suppress Fermi acceleration in a bouncer model?(Research Article)(Report)
January 1, 2009... 1. Introduction The bouncer model consists basically of a classical particle of mass m that moves under the presence of a gravitational field g and suffers elastic collisions with an infinitely heavy and periodically moving wall. It is well...

Warped product semi-invariant submanifolds in almost paracontact Riemannian manifolds.(Research Article)(Report)
January 1, 2009... 1. Introduction It is well known that the notion of warped products plays some important role in differential geometry as well as physics. The geometry of warped product was introduced by Bishop and O'Neill [1]. Many geometers studied...

Unscented filtering from delayed observations with correlated noises.(Research Article)(Report)
January 1, 2009... 1. Introduction The signal estimation problem in time-delay stochastic systems plays an important role in different application fields. For example, in engineering applications involving communication networks with a heavy network traffic,...

On the creation of a stable drop-like static meniscus, appropriate for the growth of a single crystal tube with prior specified inner and outer radii.(Research Article)(Report)
January 1, 2009... 1. Introduction The conventional melt growth techniques, as Bridgman growth [1-3] or Czochralski pulling [4-6] of single crystals, typically produce ingots of circular or square cross-sections which need to be cut in hundreds of slices to...

On the solvability of a problem of stationary fluid flow in a helical pipe.(Research Article)(Report)
January 1, 2009... 1. Introduction Engineering practice requires extensive knowledge of flow through curved pipes. Helically coiled pipes are well-known types of curved pipes which have been used in wide variety of applications. They cover a large number of...

Fourier approximation for integral equations on the real line.(Research Article)(Report)
January 1, 2009... 1. Introduction Many numerical methods for approximating the solution of integral equations are based on Galerkin and Collocation methods (see [1, 2]). Some modifications in these methods such as iterated Galerkin and iterated Collocation...

Nonnegativity preservation under singular values perturbation.(Research Article)(Report)
January 1, 2009... 1. Introduction A singular value decomposition of a matrix A [member of] [C.sup.mxn] is a factorization A = [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII.], where [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII.] and both U [member...

Analysis of nonlinear dynamics for abrupt change of interphase structure in liquid-liquid mass transfer.(Research Article)(Report)
January 1, 2009... 1. Introduction Liquid-liquid mass transfer and reaction mass transfer processes are widely used in many industries such as nuclear energy, hydrometallurgy, pharmaceutical, and chemical. In research on production process control and...

Singular positone and semipositone boundary value problems of nonlinear fractional differential equations.(Research Article)(Report)
January 1, 2009... 1. Introduction Fractional calculus has played a significant role in engineering, science, economy, and other fields. Many papers and books on fractional calculus, and fractional differential equations have appeared recently, (see [1-9]). It...

A Bayes estimator of parameters of nonlinear dynamic systems.(Research Article)(Report)
January 1, 2009... 1. Introduction Consider a dynamical system whose mathematical model has the form [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII.] (1.1) Here, the integers 0,1,...,k,... refer to time instants [t.sub.0],[t.sub.1],...,[t.sub.k],...;...

Higher-order approximate periodic solutions of a nonlinear oscillator with discontinuity by variational approach.(Research Article)(Report)
January 1, 2009... 1. Introduction Considerable attention has been directed toward the solution of nonlinear equations since they play crucial role in applied mathematics, physics, and engineering problems. In general, the analytical approximation to solution...

A priority rule-based heuristic for resource investment project scheduling problem with discounted cash flows and tardiness penalties.(Research Article)(Report)
January 1, 2009... 1. Introduction Project scheduling is a major objective of most models, and methods propose to aid planning and management of projects. Project scheduling problems are combination of precedence constraints, resource constraints, and some side...

Optimization of low-thrust limited-power trajectories in a noncentral gravity field--transfers between orbits with small eccentricities.(Research Article)(Report)
January 1, 2009... 1. Introduction This paper presents numerical and analytical results for optimal low-thrust limited-power transfers between orbits with small eccentricities in a noncentral gravity field that includes the second zonal harmonic [J.sub.2] in...

Self-learning facial emotional feature selection based on rough set theory.(Research Article)(Report)
January 1, 2009... 1. Introduction In recent years, there has been a growing interest in improving all aspects of the interactions between humans and computers. It is argued that to truly achieve effective human-computer intelligent interaction (HCII), there is...

Interior controllability of a broad class of reaction diffusion equations.(Research Article)(Report)
January 1, 2009... 1. Introduction In this paper we prove the interior approximate controllability of the following broad class of reaction diffusion equation in the Hilbert space Z = [L.sup.2](Q) given by Z' = -Az + [1.sub.[omega]]u(t), t [member of] [0,...

Robust stabilization approach and [H.sub.[infinity]] performance via static output feedback for a class of nonlinear systems.(Research Article)(Report)
January 1, 2009... 1. Introduction Modeling a real process is generally a complex and difficult task. Even if in numerous cases, a linear model can capture the main dynamical characteristics of a process. In some situations, it is necessary to take into account...

Vibration control of manipulators with flexible nonprismatic links using piezoelectric actuators and sensors.(Research Article)(Report)
January 1, 2009... 1. Introduction The need of lightweight robots has attracted the attention to robotic manipulators with flexible links. These robots are essential in mobile applications, such as surface vehicles, aircrafts, and spacecrafts. The design of...

Compact operators defined on 2-normed and 2-probabilistic normed spaces.(Research Article)(Report)
January 1, 2009... 1. Introduction In 1963, Gahler [1] introduced the notion of a 2-metric, real-valued function of pointtriples on a set X, whose abstract properties were suggested by the area function for a triangle determined by a triple in Euclidean space....

Analysis of an impulsive predator-prey system with Monod-Haldane functional response and seasonal effects.(Research Article)(Report)
January 1, 2009... 1. Introduction One of main goals in population dynamics is to understand the dynamical relationship between predator and prey. Such relationship can be represented as the functional response which refers to the change in the density of prey...

Modal decoupling using the method of weighted residuals for the nonlinear elastic dynamics of a clamped laminated composite.(Research Article)(Report)
January 1, 2009... 1. Introduction The nonlinear dynamic response of a thin laminate occurs with a large curvature deformation. A common threshold for nonlinear phenomena is a deflection greater than half of the plate thickness. Large deformation associated...

New Poisson's type integral formula for thermoelastic half-space.(Research Article)(Report)
January 1, 2009... 1. Introduction The main objective of this paper is to prove a theorem (Section 2.2) about deriving a Poisson's type integral formula for a thermoelastic half-space with the homogeneous locally mixed mechanical boundary conditions and with...

A review of some recent results for the approximate analytical solutions of nonlinear differential equations.(Report)
January 1, 2009... 1. Introduction Nonlinear phenomena play a crucial role in applied mathematics and engineering. Therefore, over the last ten years, so many mathematical methods that are aimed at obtaining analytical solutions of nonlinear differential...

Analysis of a coaxial waveguide with finite-length impedance loadings in the inner and outer conductors.(Research Article)(Report)
January 1, 2009... 1. Introduction Coaxial discontinuity structures are widely used as an element of microwave devices, and in the permeability and permittivity measurement for materials [1-3]. Hence, the diffraction at discontinuities in coaxial waveguides is...

Stochastic differential equation-based flexible software reliability growth model.(Research Article)(Report)
January 1, 2009... 1. Introduction Software reliability engineering is a fast growing field. More than 60% of critical applications are dependent on software. The complexity of business software application is also increasing. Customers need products with...

Sharp condition for global existence and blow-up on Klein-Gordon equation.(Research Article)(Report)
January 1, 2009... 1. Introduction Klein-Gordon equation is one of the famous evolution equations arising in relativistic quantum mechanics. There are a lot of literature giving the outline of its study trace. For the following type nonlinear Klein-Gordon...

Nonlinear conjugate gradient methods with sufficient descent condition for large-scale unconstrained optimization.(Research Article)(Report)
January 1, 2009... 1. Introduction In this paper, we consider the unconstrained optimization problem min {f(x) | x [member of] [R,sup.n]), (1.1) where f : [R,sup.n] [right arrow] R is a continuously differentiable function, and its gradient at point...

Some relatively new techniques for nonlinear problems.(Report)
January 1, 2009... 1. Introduction With the rapid development of nonlinear sciences, many analytical and numerical techniques have been developed by various scientists. Most of the developed techniques have their limitations like limited convergence, divergent...

Synchronization of discrete-time chaotic systems in bandlimited channels.(Research Article)(Report)
January 1, 2009... 1. Introduction Since Pecora and Carroll's seminal work [1], much has been written about the potential usefulness of chaotic synchronization in communication systems (e.g., [2-8]). Much of the impetus for chaotic communications has been the...

Nonlinear dynamics and chaos in a fractional-order HIV model.(Research Article)(Report)
January 1, 2009... 1. Introduction An important part of the human immune response against viral infections is cytotoxic T lymphocytes (CTLs)[1]. They recognize and kill cells which are infected by virus. There are many immune models describing the virus...

Parameter estimation for partial differential equations by Collage-based numerical approximation.(Research Article)(Report)
January 1, 2009... 1. Introduction In industrial and engineering applications there are broad classes of inverse problems that can be described as the problems that seek to go backwards from measurements to estimated parameter values [1,2]. In this paper we...

Approximate algorithm for determining pulse edges of a PWM inverter based on natural sampling.(Research Article)(Report)
January 1, 2009... 1. Introduction Pulse width modulation is an important method of the technique of control of power converters. At the current technological level, three areas within the pulse width modulation possess certain autonomy as regards the...

Dynamical analysis of an interleaved single inductor TITO switching regulator.(Research Article)(two input two output)(Report)
January 1, 2009... 1. Introduction Switching power converters are widely used in the power management area, due to their high efficiency, low cost and small size [1]. In most of the applications, these systems are used in situations where there is a need to...

Well posedness for a class of flexible structure in Holder spaces.(Research Article)(Report)
January 1, 2009... 1. Introduction During the last few decades, the use of flexible structural systems has steadily increased importance. The study of a flexible aerospace structure is a problem of dynamical system theory governed by partial differential...

Quantum energy expectation in periodic time-dependent Hamiltonians via green functions.(Research Article)(Report)
January 1, 2009... 1. Introduction Consider a general periodically driven quantum hamiltonian system H (t)= [H.sub.0] + V (t) (1.1) with period t acting in a separable Hilbert space H, and let [U.sub.F] denote its Floquet operator, so that if [xi] is the...

Multiresolution analysis and Haar wavelets on the Laguerre hypergroup.(Research Article)(Report)
January 1, 2009... 1. Introduction In the past decade research on the multiresolution analysis has made considerable progress due to its wide applications. For the basic theory of multiresolution we refer readers to the work in [1, 2]. Recently, we find that a...

Analytical and numerical methods for the CMKdV-II equation.(Research Article)(Report)
January 1, 2009... 1. Introduction It has been known that quasilinear parabolic equations or non-linear reaction-diffusion systems arise in physics, chemistry, biology, and other applied sciences. The following three equations are the examples of this type of...

On numerical solution of the incompressible navier-stokes equations with static or total pressure specified on boundaries.(Research Article)(Report)
January 1, 2009... 1. Introduction A flow of a viscous incompressible fluid through a given domain is rather interesting for its numerous engineering applications. Typically, these include tube and channel flows with a variety of geometries. The difficulties in...

Solitons, peakons, and periodic cuspons of a generalized Degasperis-Procesi equation.(Research Article)(Report)
January 1, 2009... 1. Introduction Recently, Degasperis and Procesi [1] derived a nonlinear dispersive equation [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN SCII.] (1.1) which is called the Degasperis-Procesi equation. Here u(t,x) represents the fluid...

Higher period stochastic bifurcation of nonlinear airfoil fluid-Structure interaction.(Research Article)(Report)
January 1, 2009... 1. Introduction It is widely know that the behavior of nonlinear dynamical systems is highly sensitive to small variations. Examples of significant effects of varying initial conditions and model parameters in time-dependent problems can be...

An unconditionally stable parallel difference scheme for telegraph equation.(Research Article)(Report)
January 1, 2009... 1. Introduction The large-scale scientific and engineering computations need the parallel computer with massively parallel processors of higher speed and large memory and also need effective parallel numerical methods and parallel algorithms....

Approximate analysis of MHD squeeze flow between two parallel disks with suction or injection by homotopy perturbation method.(Research Article)(magnetohydrodynamics)(Report)
January 1, 2009... 1. Introduction This paper deals with the study of magneto-hydrodynamic (MHD) squeeze flow of an electrically conducting fluid between two infinite, parallel disks. The lower disk is stationary and permeable with (suction or injection). The...

A twisted block tangential filtering decomposition preconditioner.(Research Article)(Report)
January 1, 2009... 1. Introduction In many scientific and engineer applications, for example, simulation of laser propagation in a plasma [1] and study of transport in highly heterogeneous porous media [2], we have to numerically solve certain partial...

Unconstrained finite element for geometrical nonlinear dynamics of shells.(Research Article)(Report)
January 1, 2009... 1. Introduction An accurate analysis of structures that exhibit large deflections is of great importance for structural design. The increasing search for economy and optimal material application leads to the conception of very flexible...

Fully connected PLL networks: how filter determines the number of nodes.(Research Article)(phase locked loops)(Report)
January 1, 2009... 1. Introduction Synchronization networks assure the correct temporal order of information processing in communication systems, computation and control and many commercial systems adopt a masterslave synchronization strategy due to its...

Continuation of periodic solutions of dissipative and conservative systems: application to elastic pendulum.(Research Article)(Report)
January 1, 2009... 1. Motivation When investigating the model of elastic pendulum [1], we have found a period doubling bifurcation when vertical oscillation loses its stability and a new branch of periodic solution is generated. To follow this branch of...

Intermittent behavior and Synchronization of two coupled noisy driven oscillators.(Research Article)(Report)
January 1, 2009... 1. Introduction Intermittency is a ubiquitous phenomenon in nonlinear dynamics. It consists of the intermittent switching between a laminar phase of regular behavior and irregular bursts. In one-dimensional quadratic-type maps it was first...

Modeling nonlinear dynamics and chaos: a review.(Report)
January 1, 2009... 1. Introduction The field of nonlinear dynamics experienced a very quick and intense development in the last thirty years or so. To determine the starting point of any subject is very difficult simply because we all stand on somebody elses...