Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Chaotic attractors"”.
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Policy Systems and Their Complexity Dynamics: Academic Medical Centers and Managed Care Markets
… was used to identify underlying periodic and chaotic attractors in the AMC system. A logistic equation was used to confirm the presence of nonlinearity. The presence of nonlinearity and the emergence of patterned behavior within schools in different managed care market groups suggested that it …
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Nonlinear Response of Cantilever Beams
… to determine in detail branches of periodic and chaotic solutions and assess their stability. The limit cycles undergo symmetry-breaking, cyclic-fold, and period-doubling bifurcations. The chaotic attractors undergo attractor-merging and boundary crises as well as explosive bifurcations. For …
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Synchronization in active networks
… have analyzed many phase coordinates for compact attractors. We have shown that for a broad class of attractors the PS phenomenon is invariant under the phase definition. Our method enables to state about the existence of phase synchronization in coupled chaotic oscillators without having to …
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Approximating differentiable relationships between delay embedded dynamical systems with radical basis functions
… map is the detection of periodic orbits in chaotic attractors, using suitably tuned filters. This method has also been used to separate signals with known bandwidths from deterministic noise, by tuning a filter to stop the signal and then recovering the chaos with the nonlinear inverse. The …
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An efficient algorithm for sensitivity analysis of chaotic systems
How does long-term chaotic behavior respond to small parameter perturbations? Using detailed models, chaotic systems are frequently simulated across disciplines – from climate science to astrophysics. But, an efficient computation of parametric derivatives of their statistics or long-term averages, …
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CUPOLETS: Chaotic unstable periodic orbits theory and applications
… work suggests that periodic orbits of chaotic systems are a rich source of qualitative information about the dynamical system. The presence of unstable periodic orbits located densely on the attractor is a typical characteristic of chaotic systems. This abundance of unstable periodic …
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Problems in nonlinear dynamics
… bifurcations, the coexistence of multiple attractors, and chaotic attractors. The results show that damping may be destabilizing. The analytical results are validated by numerically solving the original system.
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Analysis and synthesis techniques of nonlinear dynamical systems with applications to diagnostic of controlled thermonuclear fusion reactors
… random, although fundamentally deterministic. Chaotic systems are striking examples of this. In most cases, there are no hard and fast rules to analyse these systems. Often, their solutions cannot be obtained in closed form, and it is necessary to resort to numerical integration techniques, …
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Encriptación de imágenes portadoras de textos esteganografiados usando sistemas caóticos, visión artificial y codificación ADN
En este trabajo se propone un algoritmo que une la criptografía y la esteganografía, para ocultar textos en los bordes de una imagen a color gracias a técnicas propias de la visión artificial, generando posteriormente una criptoimagen la cual se construye aplicando sistemas caóticos y codificación …
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Αριθμητική μελέτη της δυναμικής συμπεριφοράς μοντέλων Kaldor της μακροοικονομίας
Τα πρωτότυπα αποτελέσματα της διατριβής περιέχονται στα κεφ. 2, 3 και 4. Στο κεφ. 2 μελετούμε με αριθμητικές μεθόδους ένα 3-διάστατο διακριτό μοντέλο μακροοικονομίας με σταθερές ισοτιμίες. Χρησιμοποιώντας μια μέθοδο πλέγματος, βρίσκουμε την περιοχή ευστάθειας στον παραμετρικό χώρο, προσδιορίζουμε …