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Topic: Chaos Control


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In the News (Fri 11 Dec 09)

  
  CONTROL : TO : CHAOS / tobias c. van Veen & DJ FISHEAD .. /.. . ./. ..
CONTROL : TO : CHAOS / tobias c.
_collision to control on slices of wax and occasional circuitry_
This work is licensed under a Creative Commons NonCommercial Sampling Plus 1.0 License.
controltochaos.ca   (721 words)

  
  Controlling and Tracking Impact Oscillators
In addition the control strategy that is discussed and applied on an impact oscillator system will assume no knowledge of the underlying model or equations that govern the dynamics and thus the control strategy in conjunction with the learning algorithm is very robust and can be applied to achieve control on an experimental data.
The orbit shown in 'red' is controlled from A = 3.9 to A = 11.7 and a different period 1 orbit (shown in 'green') is controlled from A = 13.8 to A = 16.0.
The adaptive RPF control method is used to control and track the period 1 orbits using the drive frequency as the control parameter.
chaos4.phy.ohiou.edu /~thomas/chaos/chaos_control.html   (2051 words)

  
 Mastering Chaos
Chaos has already been applied to increase the power of lasers, synchronize the output of electronic circuits, control oscillations in chemical reactions, stabilize the erratic beat of unhealthy animal hearts and encode electronic messages for secure communications.
Chaos is one type of nonlinear behavior.The distinguishing feature of chaotic systems is that they exhibit a sensitivity to initial conditions.
Roy was eager to control the chaos in the laser system, but he knew the OGY method would not work, because it was difficult and impractical to obtain the Poincaré section for the laser system.
www.fortunecity.com /emachines/e11/86/mastring.html   (5534 words)

  
 Uncommon Sense, A Book by Gregory Sams. Chapter 3. The State is Out of Date
Introduces chaos theory socuial libertarian society democracy The implications of chaos theory for the way in which we govern our society chaos theory, deterministic thinking, both in science and in governmentunpredictability holistic world,state, natural government, coercive state and complex systems and the butterfly effect.
This intent to control, it now seems, is equivalent to believing we could do a better job of managing the solar system by adjusting and carefully regulating the orbits and rotations of each of its planets, moons and asteroids.
Another manifestation of chaos organizing itself is the evolution of music in our society, evolving through constantly new harmonies, forms and technologies in order to provide continually new variations of pleasure for billions of differently tuned ears.
www.chaos-works.com /ch03.html   (2789 words)

  
 Nonlinear Man - Chaos, Fractal & Homeostatic Interplay in Human Physiology (C)1997, Gary Bass Nonlinear Man - ...
Because the mathematical algorithms designed for detecting chaos are not reliably applied to the nonstationary, relatively short and often ‘noisy’ data sets obtained from most clinical and physiological studies, the intriguing question of the role of chaos remains uncertain.
Chaos theory is not completely incompatible with the classical concept of homeostasis, but there are several fundamental differences between these approaches to the understanding of physiological variability.
Evidence for the existence of chaos in the central nervous system is also supported by the dimensional analysis of EEG waveforms of healthy individuals which shows a broad type of spectrum and a phase space attractor that is very unlike a limit cycle.
www.dchaos.com /portfolio/dchaos1/new_nonlinear_man_article.html   (2436 words)

  
 SAIC: Cover Story: Controlling Chaos - Cutting-edge Chaos Engineering   (Site not responding. Last check: 2007-10-28)
Until recently, chaos control required a complicated algorithm to determine when to apply the tiny disturbances that are used to stabilize a system.
Chaos control also may lead to improved efficiency in lean-burning engines and possibly even the control of heart arrythmias.
Chaos offers the potential for a single system to behave in many different ways, so chaos control could make it is possible to choose which of those ways a system behaves.
www.saic.com /cover-archive/saicpubs/chaos.html   (695 words)

  
 Control Theory and Chaos Control   (Site not responding. Last check: 2007-10-28)
Control, synchrony and the persistence of chaotic populations.
Identification and control of a nonlinear process in the presence of unmeasured load disturbances is important, because most chemical processes are perturbed by load disturbances that are often not measured.
The extent to which the controller performance is influenced by the model largely depends on many factors such as control effort and the control objective.
www.eletrica.ufsj.edu.br /~nepomuceno/references/chaos_control/chaos_control_abstracts.html   (1546 words)

  
 Chaos review for the MAC
In Chaos Control, you play the role of Lieutenant Jessica Darkill, ace pilot and daughter of the leader of the Earth's military forces.
Chaos Control doesn't need a manual: pointing and clicking is easy enough for anyone to figure out on their own.
Chaos Control is a case of a program stuck halfway between a game and an animated story.
www.gamerevolution.com /review/mac/chaos   (658 words)

  
 016control
Chaos theory, most congenial to some expressions of postmodern sensibility, will inform psychiatry and corrections in ways far different from their present configurations as psychiatrists and policy analysts begin to incorporate the findings of Chaos research in the administration of hospitals, asylums and corrections.
First order control tactics are not only costly and unproductive but they involve a vast cycle of people into the criminal justice system where they grow more proficient at generating tactics with which to cope with their own private and civic uncertainties after release.
Chaos theory suggests that, in order to understand variant usage of alcohol, drugs, and other psychogens as well as variant patterns of abusive behavior involving violence one would look for key parameters which converge to generate progressively unstable behavior.
critcrim.org /redfeather/chaos/016socialcontrol.html   (14864 words)

  
 Controlling Chaos - Scholarpedia
Here by control we mean feedback control; i.e., measurements of the state of the system are regularly taken, and, on the basis of these measurements, some controllable parameter (or set of parameters) is adjusted so as to achieve some goal.
The basic idea is that since chaos is exponentially sensitive to small orbit perturbations, such orbit perturbations become large in a relatively short time.
An early example illustrating the possibility of targeting control with small controls is illustrated by the first encounter of a spacecraft with a comet, achieved by NASA in 1985.
www.scholarpedia.org /article/Controlling_Chaos   (2253 words)

  
 crg@utk: Glossary
Chaos arose as an interdisciplinary, collaborative body of knowledge, so there are very few people who study pure "chaology".
Chaos is aperiodic long-term behavior in a deterministic system that exhibits sensitive dependence on initial conditions.
The recognized first mention of chaos (ie, the "coining" of the term) is by Li and Yorke (1975).
www-chaos.engr.utk.edu /glossary.html   (1398 words)

  
 An Overview of ChAOS
ChAOS was designed to meet the need for an adaptive optics system that delivers excellent near-infrared image correction while still remaining affordable.
ChAOS consists of several major components: a deformable mirror capable of bending on command to compensate for atmospheric distortion, a wavefront sensor to measure atmospheric distortion, and a high-speed reconstructor that receives data from the wavefront sensor and converts it into correction commands to drive the deformable mirror.
Control signals are converted to the high voltages necessary to drive the deformable mirror on custom-designed amplifier cards.
astro.uchicago.edu /chaos/poster1/poster1.html   (1503 words)

  
 Theoretical Reseach - UMD Chaos Group
While chaos is commonly viewed as undesirable, these properties can also be of great benefit in certain situations where one wishes to control the system dynamics.
Recently it has been shown that chaos in the Lagrangian dynamics of the underlying flow is the key consideration for answering the question posed by the kinematic dynamo problem.
Among recent results in quantum chaos is a prediction relating the chaos in the classical problem to the statistics of energy-level spacings in the semiclassical quantum regime.
www-chaos.umd.edu /research.html   (1901 words)

  
 Building Chaos Control In New Transfer Stations
One way to effectively and inexpensively control the negative effects of dust, odor, noise, wastewater, litter and fire is by incorporating certain design elements into the basic building systems.
The first step to controlling dust during waste transfer is to enclose the waste handling area within a building.
It is crucial to consider all the building systems as part of an integrated environmental control system and to work with an experienced designer to increase the effectiveness of your transfer station design.
wasteage.com /mag/waste_building_chaos_control/index.html   (1874 words)

  
 Welcome to Chaos Control Digizine!
Issue #1 of Chaos Control was a small, 8 page fl and white photo copied magazine.
Chaos Control was designed on a computer, and distributed mainly to people with computers.
The hard work paid off in the summer of 1994, when was asked by a BMG rep to create a Chaos Control-style interactive promo kit for Killing Joke.
www.chaoscontrol.com /content_about.php   (423 words)

  
 Nonlinear Systems and Control of Chaos
Deterministic chaos is usually associated with wild oscillations in the variables that may be inconvenient in practical applications of the systems exhibiting these features and, thus, for many applications one would like the system to have a more regular behavior.
The idea of controlling chaos consists precisely in the stabilization of any of these orbits embedded in the strange attractor.
Fixing a and b to these values and considering c as the control parameter the model exhibits a Feigenbaum's period-doubling route to chaos, a universal scenario for chaos transition.
personales.unican.es /gutierjm/main/chaos.html   (784 words)

  
 Introduction to Chaos and It's Real World Applications
However, in technical literature, the term chaos means something that appears to be random and disordered but is actually deterministic in nature, meaning that it is precisely controlled by natural laws.
Chaos in itself has been of great benefit, for as Henry Brooks Adams put it: ``Chaos often breeds life, when order breeds habit.'' It may be critically important to understand chaos in order to sustain our own existence as John Fiske eloquently stated in
Since a chaotic system is composed of an infinite number of unstable periodic orbits, the key to controlling the system is to wait until the system comes near the desired periodic orbit and then perturb the input parameters just enough to encourage the system to stay on that orbit.
www.csuohio.edu /physics/kaufman/yurkon/chaos.html   (2799 words)

  
 chaos-control
Control of the chaotic Duffing equation with uncertainty in all
Control of the chaotic regimes of nonlinear drift-waves in a
From chaos to coercion: Detention and the control of tuberculosis
www.rusycon.ru /chaos-control.html   (10679 words)

  
 Speedy Chaos Control
A new algorithm can control this type of chaos at very high speed and may be applied to the troublesome chaos in diode lasers.
For a chaotic circuit, the solution is to apply a voltage pulse during each cycle, with an amplitude that depends on the details of the chaotic behavior.
This corner is chosen to coincide with a periodic orbit, and on each successive round, the state moves closer to that corner and spends less time crossing the window, which reduces the duration of the pulse.
focus.aps.org /story/v4/st14   (635 words)

  
 Did you control the Chaos
In order for a maintenance department to be truly efficient and effective, its work must be planned, scheduled and performed in some order of importance to the facility.
Backlog control is critical to the effective implementation of a computerized or a manual maintenance system.
Base this control and associated performance of work on work type and equipment criticality.
www.gocfi.com /resources/mrocoach-controlchaos.htm   (561 words)

  
 Chair of Real Time Systems - Research
In close co-operation with the Centre of Chaos Control and Synchronisation at the City University of Hong Kong, comprehensive research is carried out on the emerging and cutting-edge discipline of chaos theory, chaos control, and its applications to various areas of engineering and information technology.
The fundamentally oriented part of this research includes modeling and theoretical analysis of various chaotic systems, chaos control when chaos is harmful, as well as anti-control of chaos when chaos turns out to be useful and beneficial under certain circumstances.
The fundamental features of chaos, such as ergodicity, the mixing and exactness properties, and the sensitivity to initial conditions are combined with the ``confusion'' and ``diffusion'' properties to yield good ciphers.
www.fernuni-hagen.de /IT/eng/forschung-en.html   (1342 words)

  
 Urban Dictionary: Chaos Control
1) Of the Sonic games: A power that is used with a Chaos Emerald to bend time and space, either allowing you to freeze time or to warp yourself or something else instantly from one location to another.
In the card game Yu-Gi-Oh!, a form of deck that utilizes 'chaos monsters' and other cards to remove the opponent's monsters from play and generally wreak havoc on their deck, usually with overpowering and, usually, unstoppable 'doomsday' effects.
In the Traditional format, Chaos Control was king, but now that the Advanced format has banned CED, Chaos Control just isn't what it used to be, anymore.
www.urbandictionary.com /define.php?term=Chaos+Control   (228 words)

  
 Chaos Software contact management time manager email client
Chaos 7 continues to be the easiest and most effective time management software you can trust to keep chaos under control.
It also works great with Chaos Intellect or Time and Chaos 6 or 7 for a full featured contact management solution.
It is sold and supported by CompanionLink Software, Inc., a specialized expert focused on working with mobile business PDAs (and we are enthused to have them putting their expertise to work for our users!) Complete details are available at CompanionLink.com.
www.chaossoftware.com   (830 words)

  
 why-chaos.html   (Site not responding. Last check: 2007-10-28)
Chaos control and anti-control technologies promise to have a major
Chaos control refers to the situation where chaotic dynamics is
controller as a time function is yet to be designed.
www.ee.cityu.edu.hk /~gchen/why-chaos.html   (1196 words)

  
 Chaos and Nonlinear Dynamical Systems
A chaos control algorithm is developed to actively stabilize unstable periodic orbits of higher-dimensional systems.
Intermittent chaos is investigated by means of an extended version of the statistical-mechanical formalism developed by Sato and Honda [Phys.
It is shown that, in contrast to general belief, the presence of the regular chaos phase (i.e., vanishing Rényi entropies for inverse temperatures q > 1) is not necessarily related to intermittency.
cnls.lanl.gov /~toro/Chaos.htm   (1252 words)

  
 crg@utk: Research in chaos control   (Site not responding. Last check: 2007-10-28)
The realization that chaotic attractors contain many (infinity) unstable periodic orbits led to the notion of chaos control, in which a system could be controlled about one periodic orbit or, in many cases, multiple periodic orbits.
Many experimental systems haved been controlled with a variety of chaos control schemes since the first report of experimental control in 1990.
The CRG has been working on application of chaos control techniques to the following of its experimental systems: fluidized beds, bubbling columns, thermal pulse combustors and internal combustion engines.
www-chaos.engr.utk.edu /res/control.html   (196 words)

  
 Chaos
Yet chaos represents only the tip of an awesome iceberg, for beneath it lies a much finer structure of immense complexity, a geometric labyrinth of endless convolutions, and a surreal landscape of enchanting beauty.
The bedrock which anchors these local and global bifurcation terrains is the omnipresent nonlinearity that was once wantonly linearized by the engineers and applied scientists of yore, thereby forefeiting their only chance to grapple with reality.
In particular, I was interested in improving methods of recognizing and describing deterministic chaos and in studying methods for controlling chaos, in systems that show temporal chaos and spatially extended systems that show spatio-temporal chaos.
chaos.phy.ohiou.edu /~thomas/chaos/chaos.html   (808 words)

  
 Le Chaos Control .·::·. Enquêtes .·::·. Planète-Sonic v1.1
Le Chaos Control était ici sous forme d'une immense onde de choc.
Il semblerait que seulement certaines personnes puissent utiliser le Chaos control.
Si c'est bien un Chaos Control, elle aurait pu développer ce pouvoir lorsqu'elle était enfermée dans la Master Emerald, ce qui n'est pas vraiment sûr car on sait que cette Emeraude neutralise le pouvoir des 7 autres...
www.planete-sonic.com /dossiers/enquetes/le-chaos-control-a181.htm   (1202 words)

  
 Chaos Control Digizine : Moby Interview
In addition, Moby didn't really have any control over the decision to release the "Ambient" album, despite it being promoted as his personal pick of his favorite songs.
Instinct had decided that they would put it out, and came to Moby asking him to pick from of his older tracks that they had.
Moby also feels that the label is more willing to try to understand the scene that Moby comes out of, rather than try to plug him into an existing category and framework.
www.chaoscontrol.com /content_article.php?article=moby   (1501 words)

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