نتایج جستجو برای: chaos theory

تعداد نتایج: 795074  

2002
Jeffrey J. Rodriguez

Chaos and random signals share the property of long term unpredictable irregular behavior and broad band spectrum. The aim of this paper is not to distinguish between random and chaotic dynamics, nor to show the use of chaos, but to focus attention on how chaos and noise help order to arise from disorder. This means to investigate the effect of the introduction of either deterministic chaotic o...

2011
Pudji Astuti

Chaos could occur anytime in agriculture sector, and that some occurences will be predictable and some will not, so it needs early warning system that could detect early chaotic conditions and take action for crisis recovery.This research was aimed to design early warning system for tapioca agroindustry with the chaos existence test. The methodology in this research we investigate the existence...

1998
B. V. Chirikov

The controversial concept of quantum chaos – the dynamical chaos in bounded mesoscopic quantum systems – is presented as the most important and universal instance of a new generic dynamical phenomenon: pseudochaos. The latter characterizes the irregular behaviour of dynamical systems with discrete energy and/or frequency spectrum, which include classical systems with discrete phase space. The q...

2011
Alireza Ahmadi

Few studies have been conducted on the application of chaos theory to foreign language learning and assessment. The present study tried to empirically test the application of one of the fundamental tenets of the chaos theory (sensitivity to initial conditions) to language assessment by studying the effect that changing the first item of a MC test may have on test performance. Twenty Iranian EFL...

2004
Michael Peter Kennedy

Linear system theory provides an inadequate characterization of sustained oscillation in nature. In this two-part exposition of oscillation in piecewise-linear dynamical systems, we guide the reader from linear concepts and simple harmonic motion to nonlinear concepts and chaos. By means of three worked examples, we bridge the gap from the familiar parallel RLC network to exotic nonlinear dynam...

2002
Yufei Zhou Chi K. Tse Shui-Sheng Qiu Francis C.M. Lau

This paper presents an improved resonant parametric perturbation method for controlling chaos. The control target can be any periodic orbit. Anti-control of chaos or chaotization is also possible using this method. Application of the method is illustrated for a common current-programmed dc/dc converter which can easily become chaotic for a wide parameter range. Keywords— Chaos control, resonant...

2012
Mohammad Shahrokhi

where n x∈R is the state vector, m u∈R is the control vector and : n m n f R ×R →R is a sufficiently smooth function. The first equation presents a continuous time dynamical system and the second one a discrete dynamical system. It is assumed that both equations show chaotic behavior. The techniques of chaos control can be categorized based on different view points. a) open-loop and closed-loop...

2003
F. M. van Eijnatten

Chaordic Systems Thinking (CST) is a framework that uses chaos as a lens and as a metaphor for change. CST is developed as a successor of Open Systems Thinking (OST) [5] [6]. Its basic terms and concepts are described below. Complexity is defined neither as a theory, nor as a lens, but rather as one – among many – characteristics of whole systems [3]. We take this position as point of departure...

Journal: :Entropy 2014
Ying-Che Kuo Chin-Tsung Hsieh Her-Terng Yau Yu-Chung Li

This paper describes the fault diagnosis in the operation of industrial ball bearings. In order to cluster the very small differential signals of the four classic fault types of the ball bearing system, the chaos synchronization (CS) concept is used in this study as the chaos system is very sensitive to a system’s variation such as initial conditions or system parameters. In this study, the Che...

2016
S Zafar Ali

The discovery of fifth nonlinear region of operation i.e. quasi–chaos is confirmed in this paper after its recently reported two observations in loss and pumpmodulated Erbium doped fiber ring lasers.Quasi-chaos is apparently chaos but its time and physical phase space trajectories actually converge instead of diverging, even for widely separated initial conditions once the system numerical mode...

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