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Articles de revues sur le sujet "Chaotic behavior in systems":
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HOLDEN, ARUN V., et MAX J. LAB. « Chaotic Behavior in Excitable Systems ». Annals of the New York Academy of Sciences 591, no 1 Mathematical (juin 1990) : 303–15. http://dx.doi.org/10.1111/j.1749-6632.1990.tb15097.x.
Alfaro, Miguel D., et Juan M. Sepulveda. « Chaotic behavior in manufacturing systems ». International Journal of Production Economics 101, no 1 (mai 2006) : 150–58. http://dx.doi.org/10.1016/j.ijpe.2005.05.012.
Wu, Xiaomao, et Z. A. Schelly. « Chaotic behavior of chemical systems ». Reaction Kinetics and Catalysis Letters 42, no 2 (septembre 1990) : 303–7. http://dx.doi.org/10.1007/bf02065364.
Wang, Tianyi. « Classification of Chaotic Behaviors in Jerky Dynamical Systems ». Complex Systems 30, no 1 (15 février 2021) : 93–110. http://dx.doi.org/10.25088/complexsystems.30.1.93.
Differential equations are widely used to model systems that change over time, some of which exhibit chaotic behaviors. This paper proposes two new methods to classify these behaviors that are utilized by a supervised machine learning algorithm. Dissipative chaotic systems, in contrast to conservative chaotic systems, seem to follow a certain visual pattern. Also, the machine learning program written in the Wolfram Language is utilized to classify chaotic behavior with an accuracy around 99.1±1.1%.
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YANG, XIAO-SONG, et LEI WANG. « EMERGENT PERIODIC BEHAVIOR IN COUPLED CHAOTIC SYSTEMS ». Advances in Complex Systems 09, no 03 (septembre 2006) : 249–61. http://dx.doi.org/10.1142/s0219525906000793.
Emergent behavior in interconnected systems (complex systems) is of fundamental significance in natural and engineering sciences. A commonly investigated problem is how complicated dynamics take place in dynamical systems consisting of (often simple) subsystems. It is shown though numerical experiments that emergent order such as periodic behavior can likely take place in coupled chaotic dynamical systems. This is demonstrated for the particular case of coupled chaotic continuous time Hopfield neural networks. In particular, it is shown that when two chaotic Hopfield neural networks are coupled by simple sigmoid signals, periodic behavior can emerge as a consequence of this coupling.
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VIANA, R. L., S. E. DE S. PINTO, J. R. R. BARBOSA et C. GREBOGI. « PSEUDO-DETERMINISTIC CHAOTIC SYSTEMS ». International Journal of Bifurcation and Chaos 13, no 11 (novembre 2003) : 3235–53. http://dx.doi.org/10.1142/s0218127403008636.
We call a chaotic dynamical system pseudo-deterministic when it does not produce numerical, or pseudo-trajectories that stay close, or shadow chaotic true trajectories, even though the model equations are strictly deterministic. In this case, single chaotic trajectories may not be meaningful, and only statistical predictions, at best, could be drawn on the model, like in a stochastic system. The dynamical reason for this behavior is nonhyperbolicity characterized either by tangencies of stable and unstable manifolds or by the presence of periodic orbits embedded in a chaotic invariant set with a different number of unstable directions. We emphasize herewith the latter by studying a low-dimensional discrete-time model in which the phenomenon appears due to a saddle-repeller bifurcation. We also investigate the behavior of the finite-time Lyapunov exponents for the system, which quantifies this type of nonhyperbolicity as a system parameter evolves past a critical value. We argue that the effect of unstable dimension variability is more intense when the invariant chaotic set of the system loses transversal stability through a blowout bifurcation.
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Alessio, Francesca, Vittorio Coti Zelati et Piero Montecchiari. « Chaotic behavior of rapidly oscillating Lagrangian systems ». Discrete & ; Continuous Dynamical Systems - A 10, no 3 (2004) : 687–707. http://dx.doi.org/10.3934/dcds.2004.10.687.
Zielinska, Barbara J. A., David Mukamel, Victor Steinberg et Shmuel Fishman. « Chaotic behavior in externally modulated hydrodynamic systems ». Physical Review A 32, no 1 (1 juillet 1985) : 702–5. http://dx.doi.org/10.1103/physreva.32.702.
Bambah, Bindu A., S. Lakshmibala, C. Mukku et M. S. Sriram. « Chaotic behavior in Chern-Simons-Higgs systems ». Physical Review D 47, no 10 (15 mai 1993) : 4677–87. http://dx.doi.org/10.1103/physrevd.47.4677.
This dissertation provides the conceptual development, modeling and simulation, physical
implementation, and measured hardware results for a practicable digital coherent chaotic
communication system. Such systems are highly desirable for robust communications due to
the maximal entropy signal characteristics that satisfy Shannon's ideal noise-like waveform
and provide optimal data transmission across a flat communications channel. At the core of
the coherent chaotic communications system is a fully digital chaotic circuit, providing an
efficiently controllable mechanism that overcomes the traditional bottleneck of chaotic circuit
state synchronization. The analytical, simulation, and hardware results yield a generalization of direct sequence spread spectrum waveforms, that can be further extended to create a new class of maximal entropy waveforms suitable for optimized channel performance, maximal entropy transmission of chaotically spread amplitude modulated data constellations, and
permission-based multiple access systems.
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Çek, Mehmet Emre Savacı Ferit Acar. « Analysis of observed chaotic data/ ». [s.l.] : [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/elektronikvehaberlesme/T000493.rar.
Çiftçi, Mahmut. « Channel equalization for chaotic communications systems ». Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/15464.
Carlu, Mallory. « Instability in high-dimensional chaotic systems ». Thesis, University of Aberdeen, 2019. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=240675.
In this thesis I make extensive use of the Lyapunov analysis formalism to unravel fundamental mechanisms of instability in two different systems : the Kuramoto model of globally coupled phase-oscillators and the Lorenz 96 (L96) atmospheric "toy" model, portraying the evolution of a physical quantity along a latitude circle. I start by introducing the relevant theoretical background, with special attention on the main tools I have been using throughout this work : Lyapunov Exponents (LEs), which quantify the asymptotic growth rates of infinitesimal perturbations in a system, and by extension, its degree of chaoticity, and Covariant Lyapunov Vectors (CLVs), which indicate the phase space direction (or the geometry) associated with these growth rates. The Kuramoto model is central in the study of synchronization among oscillatory units characterized by their various natural frequencies, but little is known on its chaotic dynamics in the unsynchronized state. I thus investigate the scaling behavior of the first LE, upon different assumptions on the natural frequencies, and make use of educated structural simplifications to analyze the origin of chaos in the finite size model. On the other hand, the L96 model has been devised to gather the main dynamical ingredients of atmospheric dynamics, namely advection, damping, external (solar) forcing and transfers across different scales of motion, in a minimalist and functional way. It features two coupled dynamical layers : the large scale variables, representing synoptic scale atmospheric dynamics, and the small scale variables, faster and more numerous, associated with convective scale dynamics. The core of the study revolves around geometrical properties of CLVs, in the aim of understanding the processes underlying the observed multiscale chaoticity, and an exhaustive study of a non-trivial ensemble of CLVs featuring relevant projection on the slow subspace.
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Reiss, Joshua D. « The analysis of chaotic time series ». Diss., Full text available online (restricted access), 2001. http://images.lib.monash.edu.au/ts/theses/reiss.pdf.
A class of deterministic nonlinear systems known as ”chaotic” behaves similar to noise-corrupted systems. As a specific example, Duffing equation, a nonlinear oscillator representing the roll dynamics of a vessel, was chosen for the study. State estimation and control of such systems in the presence of measurement noise is the prime goal of this research. A nonlinear estimation suitable for chaotic systems was evaluated against conventional methods based on linear equivalent model, and proved to be very efficient. A state feedback controller and a sliding mode controller were applied to the chaotic system and both techniques provided satisfactory results. Investigating the persistence of chaotic behavior of the controlled system is a secondary goal. Simulation results showed that the chaotic behavior persisted in case of the linear feedback controller, while in case of the sliding mode controller the system did not exhibit any chaotic behavior. Applied Science, Faculty of Electrical and Computer Engineering, Department of Graduate
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Cromwell, Jeff B. « Chaotic price dynamics of agricultural commodities ». Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3625.
Thesis (Ph. D.)--West Virginia University, 2004. Title from document title page. Document formatted into pages; contains vi, 166 p. : ill. Includes abstract. Includes bibliographical references (p. 142-160).
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Lindquist, Roslyn Gay. « The dimension of a chaotic attractor ». PDXScholar, 1991. https://pdxscholar.library.pdx.edu/open_access_etds/4182.
Tools to explore chaos are as far away as a personal computer or a pocket calculator. A few lines of simple equations in BASIC produce fantastic graphic displays. In the following computer experiment, the dimension of a strange attractor is found by three algorithms; Shaw's, Grassberger-Procaccia's and Guckenheimer's. The programs were tested on the Henon attractor which has a known fractal dimension. Shaw's and Guckenheimer's algorithms were tested with 1000 data points, and Grassberger's with 100 points, a data set easily handled by a PC in one hour or less using BASIC or any other language restricted to 640K RAM. Since dimension estimates are notorious for requiring many data points, the author wanted to find an algorithm to quickly estimate a low-dimensional system (around 2). Although all three programs gave results in the neighborhood of the fractal dimension for the Henon attractor, Dfracta1=1.26, none appeared to converge to the fractal dimension.
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Fleming-Dahl, Arthur. « A chaotic communication system with a receiver estimation engine ». Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/15651.
Akguc, Gursoy Bozkurt. « Chaos in 2D electron waveguides ». Access restricted to users with UT Austin EID Full text (PDF) from UMI/Dissertation Abstracts Internaional, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3035928.
CHAOS (Conference) (2nd 2009 Crete, Greece). Chaotic systems : Theory and applications. Sous la direction de Skiadas Christos H et Dimotikalis Ioannis. Singapore : World Scientific, 2010.
Chapitres de livres sur le sujet "Chaotic behavior in systems":
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Hanias, M. P., H. E. Nistazakis et G. S. Tombras. « Chaotic Behavior of Transistor Circuits ». Dans Understanding Complex Systems, 59–91. Berlin, Heidelberg : Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29329-0_4.
Cervelle, Julien, Alberto Dennunzio et Enrico Formenti. « Chaotic Behavior of Cellular Automata ». Dans Encyclopedia of Complexity and Systems Science, 1–15. Berlin, Heidelberg : Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-642-27737-5_65-4.
Cervelle, Julien, Alberto Dennunzio et Enrico Formenti. « Chaotic Behavior of Cellular Automata ». Dans Encyclopedia of Complexity and Systems Science, 978–89. New York, NY : Springer New York, 2009. http://dx.doi.org/10.1007/978-0-387-30440-3_65.
Meyer, H. D. « Chaotic Behavior of Classical Hamiltonian Systems ». Dans Fractals, Quasicrystals, Chaos, Knots and Algebraic Quantum Mechanics, 143–57. Dordrecht : Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-3005-6_10.
Krabs, Werner, et Stefan Pickl. « Chaotic Behavior of Autonomous Time-Discrete Systems ». Dans Dynamical Systems, 149–93. Berlin, Heidelberg : Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-13722-8_3.
Josiński, Henryk, Agnieszka Michalczuk, Adam Świtoński, Romualda Mucha et Konrad Wojciechowski. « Quantifying Chaotic Behavior in Treadmill Walking ». Dans Intelligent Information and Database Systems, 317–26. Cham : Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15705-4_31.
Wisniewski, Helena S. « Bounds for the Chaotic Behavior of Newton’s Method ». Dans Dynamics of Infinite Dimensional Systems, 481–510. Berlin, Heidelberg : Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-86458-2_39.
Nishimura, Jun, et Tomohisa Hayakawa. « Chaotic Behavior of Orthogonally Projective Triangle Folding Map ». Dans Analysis and Control of Complex Dynamical Systems, 77–90. Tokyo : Springer Japan, 2015. http://dx.doi.org/10.1007/978-4-431-55013-6_7.
Hacinliyan, Avadis Simon, Orhan Ozgur Aybar, Ilknur Kusbeyzi Aybar, Mustafa Kulali et Seyma Karaduman. « Signals of Chaotic Behavior in Middle Eastern Stock Exchanges ». Dans Chaos and Complex Systems, 353–56. Berlin, Heidelberg : Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-33914-1_48.
Biswas, Debabrata, et Tanmoy Banerjee. « Collective Behavior-I : Synchronization in Hyperchaotic Time-Delayed Oscillators Coupled Through a Common Environment ». Dans Time-Delayed Chaotic Dynamical Systems, 57–78. Cham : Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-70993-2_4.
Actes de conférences sur le sujet "Chaotic behavior in systems":
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Gómez, J. M. G., L. Muñoz, J. Retamosa, R. A. Molina, A. Relaño et E. Faleiro. « Chaotic Behavior of Nuclear Systems ». Dans Proceedings of the Predeal International Summer School in Nuclear Physics. WORLD SCIENTIFIC, 2007. http://dx.doi.org/10.1142/9789812770417_0008.
Ikeda, Hideo. « Chaotic behavior in complex shop scheduling ». Dans 2012 Joint 6th Intl. Conference on Soft Computing and Intelligent Systems (SCIS) and 13th Intl. Symposium on Advanced Intelligent Systems (ISIS). IEEE, 2012. http://dx.doi.org/10.1109/scis-isis.2012.6505303.
Uppal, J. S., Weiping Lu, A. Johnstone et R. G. Harrison. « Generic Chaotic Behavior of Stimulated Brillouin Scattering ». Dans Nonlinear Dynamics in Optical Systems. Washington, D.C. : Optica Publishing Group, 1990. http://dx.doi.org/10.1364/nldos.1990.oc558.
We report first evidence of chaotic emission in stimulated Brillouin scattering under cw pump conditions involving a single Stoke and pump signal. Single mode optical fibre is used as the nonlinear medium. First analysis of this fundamental process establishes chaotic dynamics to be prevalent in both the Stokes and transmitted pump signals; existing over a very wide parameter region including that close to the SBS threshold. The interplay of nonlinear dispersion with Brillouin gain is identified as a key mechanism responsible for this behaviour.
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Evans, Allan K. « The long-time behavior of correlation functions in dynamical systems ». Dans Stochastic and chaotic dynamics in the lakes. AIP, 2000. http://dx.doi.org/10.1063/1.1302412.
Graham, R. « Quantized Chaotic Systems ». Dans Instabilities and Dynamics of Lasers and Nonlinear Optical Systems. Washington, D.C. : Optica Publishing Group, 1985. http://dx.doi.org/10.1364/idlnos.1985.thc1.
Chaos is a typical form of dynamical behavior of classical nonlinear dynamical systems. In conservative Hamiltonian systems with f degrees of freedom chaos appears if the system is not intergrable and in some regions of phase space trajectories are not restricted to f-dimensional smooth manifolds. In dissipative systems chaos in the dynamical steady state appears if the system has a strange attractor in configuration space.
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Gu, Pengyun, Steven Dubowsky et Constantinos Mavroidis. « The Design Implications of Chaotic and Near-Chaotic Vibrations in Machines ». Dans ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/mech-5849.
Abstract Accurate performance prediction is key to the design of high performance machines. It is shown here that connection clearance and component flexibility can result in machine dynamic behaviors that are hypersensitive to small variations of system design parameters and operating conditions. These hypersensitivities, which can limit the usefulness of computer dynamic simulations for design, are associated with chaotic and near chaotic behavior. The dynamic behaviors of two systems, an Impact Beam System and a Spatial Slider Crank, are studied. The chaotic vibration of these systems is confirmed numerically and experimentally. Hypersensitivity is shown for both chaotic and periodic response regions, in which case actual dynamic behavior of such machines could be very different in practice from that predicated by design simulation studies. Design guidelines are developed for evaluating the fatigue life and the reliability of machines under these conditions.
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Goldman, Paul, et Agnes Muszynska. « Chaotic Behavior of Rotor/Stator Systems With Rubs ». Dans ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/93-gt-387.
This paper outlines the dynamic behavior of externally excited rotor/stator systems with occasional, partial rubbing conditions. The observed phenomenon have one major source of a strong nonlinearity: transition from no contact to contact state between mechanical elements, one of which is rotating. This results in variable stiffness and damping, impacting, and intermittent involvement of friction. A new model for such a transition (impact) is developed. In case of the contact between rotating and stationary elements, it correlates the local radial and tangential (“super ball”) effects with global behavior of the system. The results of numerical simulations of a simple rotor/stator system based on that model are presented in the form of bifurcation diagrams, rotor lateral vibration time–base waves, and orbits. The vibrational behavior of the considered system is characterized by orderly harmonic and subharmonic responses, as well as by chaotic vibrations. A new result (additional subharmonic regime of vibration) is obtained for the case of heavy rub of an anisotropically supported rotor. The correspondence between numerical simulation and previously obtained experimental data supports the adequacy of the new model of impact.
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Kaloutsakis, G. « Chaotic Behavior of a Self-Replicating Robotic Population ». Dans Topics on Chaotic Systems - Selected Papers from CHAOS 2008 International Conference. WORLD SCIENTIFIC, 2009. http://dx.doi.org/10.1142/9789814271349_0020.
Ortín, S., L. Pesquera, J. M. Gutiérrez, A. Valle et A. Cofiño. « Nonlinear dynamics reconstruction with neural networks of chaotic time-delay communication systems ». Dans COOPERATIVE BEHAVIOR IN NEURAL SYSTEMS : Ninth Granada Lectures. AIP, 2007. http://dx.doi.org/10.1063/1.2709603.
Cull, P. « Linear Fractionals - Simple Models with Chaotic-like Behavior ». Dans COMPUTING ANTICIPATORY SYSTEMS : CASYS 2001 - Fifth International Conference. AIP, 2002. http://dx.doi.org/10.1063/1.1503683.
Rapports d'organisations sur le sujet "Chaotic behavior in systems":
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Narducci, L. M. Instabilities and Chaotic Behavior of Active and Passive Laser Systems. Fort Belvoir, VA : Defense Technical Information Center, mars 1985. http://dx.doi.org/10.21236/ada153366.
Bodruzzaman, M., et M. A. Essawy. Chaotic behavior control in fluidized bed systems using artificial neural network. Quarterly progress report, October 1, 1996--December 31, 1996. Office of Scientific and Technical Information (OSTI), février 1996. http://dx.doi.org/10.2172/493394.
Bodruzzaman, M., et M. A. Essawy. Chaotic behavior control in fluidized bed systems using artificial neural network. Quarterly progress report, April 1, 1996--June 30, 1996. Office of Scientific and Technical Information (OSTI), juillet 1996. http://dx.doi.org/10.2172/410400.
Bodruzzaman, M. Chaotic behavior monitoring & ; control in fluidized bed systems using artificial neural network. Quarterly progress report, July 1, 1996--September 30, 1996. Office of Scientific and Technical Information (OSTI), octobre 1996. http://dx.doi.org/10.2172/477756.
Soloviev, Vladimir, Andrii Bielinskyi, Oleksandr Serdyuk, Victoria Solovieva et Serhiy Semerikov. Lyapunov Exponents as Indicators of the Stock Market Crashes. [б. в.], novembre 2020. http://dx.doi.org/10.31812/123456789/4131.
The frequent financial critical states that occur in our world, during many centuries have attracted scientists from different areas. The impact of similar fluctuations continues to have a huge impact on the world economy, causing instability in it concerning normal and natural disturbances [1]. The an- ticipation, prediction, and identification of such phenomena remain a huge chal- lenge. To be able to prevent such critical events, we focus our research on the chaotic properties of the stock market indices. During the discussion of the re- cent papers that have been devoted to the chaotic behavior and complexity in the financial system, we find that the Largest Lyapunov exponent and the spec- trum of Lyapunov exponents can be evaluated to determine whether the system is completely deterministic, or chaotic. Accordingly, we give a theoretical background on the method for Lyapunov exponents estimation, specifically, we followed the methods proposed by J. P. Eckmann and Sano-Sawada to compute the spectrum of Lyapunov exponents. With Rosenstein’s algorithm, we com- pute only the Largest (Maximal) Lyapunov exponents from an experimental time series, and we consider one of the measures from recurrence quantification analysis that in a similar way as the Largest Lyapunov exponent detects highly non-monotonic behavior. Along with the theoretical material, we present the empirical results which evidence that chaos theory and theory of complexity have a powerful toolkit for construction of indicators-precursors of crisis events in financial markets.
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Jen, E., M. Alber, R. Camassa, W. Choi, J. Crutchfield, D. Holm, G. Kovacic et J. Marsden. Applied mathematics of chaotic systems. Office of Scientific and Technical Information (OSTI), juillet 1996. http://dx.doi.org/10.2172/257451.
Wang, Hua O., et Eyad H. Abed. Bifurcation Control of Chaotic Dynamical Systems. Fort Belvoir, VA : Defense Technical Information Center, juin 1992. http://dx.doi.org/10.21236/ada454958.
Collins, Lee A., et Christopher Ticknor. Chaotic Behavior : Bose-Einstein Condensate in a Disordered Potential. Office of Scientific and Technical Information (OSTI), avril 2014. http://dx.doi.org/10.2172/1129053.
Abarbanel, H. D. Topics in Pattern Formation and Chaotic Systems. Fort Belvoir, VA : Defense Technical Information Center, mai 1993. http://dx.doi.org/10.21236/ada265922.
Geller, Jil T., Sharon E. Borglin et Boris A. Faybishenko. Experiments and evaluation of chaotic behavior of dripping waterin fracture models. Office of Scientific and Technical Information (OSTI), juin 2001. http://dx.doi.org/10.2172/900684.
