Rozprawy doktorskie na temat „Chaos map”
Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych
Sprawdź 40 najlepszych rozpraw doktorskich naukowych na temat „Chaos map”.
Przycisk „Dodaj do bibliografii” jest dostępny obok każdej pracy w bibliografii. Użyj go – a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w stylu cytowania, którego potrzebujesz: APA, MLA, Harvard, Chicago, Vancouver itp.
Możesz również pobrać pełny tekst publikacji naukowej w formacie „.pdf” i przeczytać adnotację do pracy online, jeśli odpowiednie parametry są dostępne w metadanych.
Przeglądaj rozprawy doktorskie z różnych dziedzin i twórz odpowiednie bibliografie.
Barton, Nicholas. "Transport and spectral properties of the one dimensional sine map". Thesis, University of Warwick, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269050.
Pełny tekst źródłaCartwright, Julyan H. E. "Chaos in dissipative systems : bifurcations and basins". Thesis, Queen Mary, University of London, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313920.
Pełny tekst źródłaŠvihálková, Kateřina. "Stabilizace chaosu: metody a aplikace". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254422.
Pełny tekst źródłaGuo, Yu. "BIFURCATION AND CHAOS OF NONLINEAR VIBRO-IMPACT SYSTEMS". OpenSIUC, 2013. https://opensiuc.lib.siu.edu/dissertations/725.
Pełny tekst źródłaTaylor, Imogen T. F. "Control and synchronisation of coupled map lattices : interdisciplinary modelling of synchronised dynamic behaviour (insects in particular)". Thesis, University of Derby, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275687.
Pełny tekst źródłaLippolis, Domenico. "How well can one resolve the state space of a chaotic map?" Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33841.
Pełny tekst źródłaCourtot, Ariane. "Réviser les pluies de météores : caractérisation du chaos dans les courants de météoroïdes". Electronic Thesis or Diss., Université Paris sciences et lettres, 2023. http://www.theses.fr/2023UPSLO007.
Pełny tekst źródłaA meteoroid stream is formed when meteoroids are ejected by a parent body (asteroid or comet). When this stream encounters the Earth, a meteor shower appears. This link between observed meteors and their parent body is difficult to establish, mainly because of the complex dynamics of meteoroids (non-gravitational forces -NGFs- and close encounters). I therefore define a 'meteor group' as a set of meteors with similar characteristics, but whose link with the parent body is uncertain.I have reviewed the methods used to form groups: orbit dissimilarity criteria and grouping algorithms. In view of the incompleteness observed, I chose to look at this problem from the angle of chaos, defined as the exponential increase in the distance between two orbits that are initially infinitely close.I selected a suitable chaos indicator and then produced chaos maps of the Geminids, Draconids and Leonids, three meteor showers with very different orbits. I showed how mean motion resonances (MMRs) capture the particles and prevent them from encountering the planet responsible for the MMR. This effect is greater in the case of larger MMRs.However, NGFs can modify this effect. For Geminids, there is a limiting radius below which diffusion due to NGFs prevents capture in MMRs. On the other hand, for Draconids and Leonids, this limiting radius is much smaller, and is not reached in my simulations. This is due both to the width of the RMMs, which is much greater than that of the Geminids, and to the weak effect of the NGFs for the same mass for these orbits, unlike the Geminids.Finally, I turned my attention to the Taurids, for which the link with the parent body is the topic of several studies, and more particularly to the North and South branches. This time, I chose to use meteor observations. These proved difficult to exploit for a dynamic study, so I had to select the particles that corresponded to the Taurids myself (according to their position in the sky and their speed at the time of their encounter with the Earth).The maps show the very high chaos of the Taurids and the absence of the MMR mechanism. These differences could justify classifying the Taurids as a group rather than a shower. I had difficulty finding the Southern Taurids in my data, which casts doubt on the validity of this branch. Further integrations are needed to investigate these results, but the chaos maps give some initial indications of the group/shower distinction
Rollin, Guillaume. "Chaos dynamique dans le problème à trois corps restreint". Thesis, Besançon, 2015. http://www.theses.fr/2015BESA2028/document.
Pełny tekst źródłaThis work is devoted to the study of the restricted 3-body problem and particularly to the capture-evolution-ejection process of particles by binary systems (star-planet, binary star, star-supermassive black hole, binary black hole, ...). First, using a generalized Kepler map, we describe, through the case of 1P/Halley, the chaotic dynamics of comets in the Solar System. The here considered binary system is the couple Sun-Jupiter. The symplectic application we use allows us to depict the main characteristics of the dynamics: chaotic trajectories, KAM islands associated to resonances with Jupiter orbital motion, ... We determine exactly and semi-analytically the exchange of energy (kick function) between the Solar System and 1P/Halley at its passage at perihelion. This kick function is the sum of the contributions of 3-body problems Sun-planet-comet associated to the eight planets. We show that each one of these contributions can be split in a keplerian term associated to the planet gravitational potential and a dipolar term due to the Sun movement around Solar System center of mass. We also use the generalized Kepler map to study the capture of dark matter particles by binary systems. We derive the capture cross section showing that long range capture is far more efficient than close encounter induced capture. We show the importance of the rotation velocity of the binary in the capture process. Particularly, a binary system with an ultrafast rotation velocity accumulates a density of captured matter up to 10^4 times the density of the incoming flow of matter. Finally, by direct integration of the planar restricted 3-body problem equations of motion, we study the ejection of particles initially captured by a binary system. In the case of a binary with two components of comparable masses, although almost all the particles are immediately ejected, we show, on Poincaré sections, that the trace of remaining particles in the vicinity of the binary form a fractal structure associated to a strange repeller associated to chaotic open systems. This fractal structure, also present in real space, has a shape of two arm spiral sharing similarities with spiral structures observed in galaxies such as the Milky Way
Krützmann, Nikolai Christian. "Application of Complexity Measures to Stratospheric Dynamics". Thesis, University of Canterbury. Physics and Astronomy, 2008. http://hdl.handle.net/10092/2020.
Pełny tekst źródłaWeirauch, Angelika. "Kreativität – wie man Sinn und Freude im Chaos der Existenz findet". Master's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-115571.
Pełny tekst źródłaFeltekh, Kais. "Analyse spectrale des signaux chaotiques". Phd thesis, INSA de Toulouse, 2014. http://tel.archives-ouvertes.fr/tel-01071919.
Pełny tekst źródłaMinář, Petr. "Nelineární řízení komplexních soustav s využitím evolučních přístupů". Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-364594.
Pełny tekst źródłaJeon, Seung-Hwa. "L'inexplicable chez Samuel Beckett : Dieux du chaos et monstres inconcevables". Thesis, Sorbonne Paris Cité, 2018. http://www.theses.fr/2018USPCC127/document.
Pełny tekst źródłaThe purpose of this thesis is to show how clichés collapse and exists the inexplicable that Beckett notices as a condition of existence that coexists with other conditions, light and darkness ; and as chaos, composed by art destroying prejudices and clichés, and seen by Gilles Deleuze and Félix Guattari. This demonstration therefore proposes, on the one hand, to examine the fall of the gods of creation, sources of truth, wisdom and progress, and their denaturation into gods of chaos, and on the other hand, the elements abnormal writing, likely to be named monsters, because of their strangeness and ambiguity that prevent them from being defined. As for the gods of chaos, it will be the parody of the Christian God, Jesus Christ and Prometheus the inventor, and their degradation by which the creator will no longer be distinguished from his creature. As for the inconceivable monsters, the conditions of the monsters and the negative reactions towards them, which paradoxically imply the monstrualization, will be revealed by the theme of flowers, and the two mythical images, androgynous and Siamese, will reveal the impossibility of the identification or the significance, and the state of the interstage or confusion
CARMO, Ricardo Batista do. "Um mapa discreto unidimensional para o sistema de Rössler". Universidade Federal de Pernambuco, 2015. https://repositorio.ufpe.br/handle/123456789/18322.
Pełny tekst źródłaMade available in DSpace on 2017-02-15T12:52:08Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação - Ricardo Batista.pdf: 10061311 bytes, checksum: ce7d296a73fc33cb8f4605b5e94a9cfb (MD5) Previous issue date: 2015-03-02
CNPq
Centros de periodicidade e caos (CPCs) s˜ao pontos que podem aparecer quando projetamos certo expoente de Lyapunov λ em um plano de parˆametros de um sistema dinˆamico dissipativo. Espirais de solu¸c˜oes peri´odicas (λ < 0) e ca´oticas (λ > 0) circulam alternadamente um CPC, como aquele no ter¸co inferior direito na figura da folha de rosto. Nesta disserta¸c˜ao foi desenvolvido inicialmente um programa para o c´alculo num´erico do espectro de Lyapunov de um sistema dinˆamico tridimensional (3D) gen´erico. Em seguida, CPCs foram procurados e achados nas solu¸c˜oes das equa¸c˜oes de R¨ossler, que possuem trˆes parˆametros, a, b, e c. Em particular, para b = bc = 0.17872, o CPC foi encontrado no plano a×c com coordenadas a = ac = 0.17694 e c = cc = 10.5706. Fixando a = ac e tomando c como um parˆametro de controle no intervalo 3 < c < cc, uma sequˆencia de dobramentos de per´ıodo seguida por uma sequˆencia de janelas de adi¸c˜ao de per´ıodo dentro da regi˜ao ca´otica. Ajustes por fun¸c˜oes simples de mapas de retorno de m´aximos locais em uma das vari´aveis dinˆamicas do sistema de R¨ossler permitiram a elabora¸c˜ao de um mapa discreto unidimensional Mr(x) no intervalo unit´ario, o qual faz a m´ımica sin´optica da dinˆamica do fluxo. A raz˜ao de convergˆencia para a sequˆencia de adi¸c˜ao de per´ıodo foi estimada dos ciclos superest´aveis do mapa como um valor pouco acima de 1.7, em bom acordo com o que se obt´em do sistema de R¨ossler. Uma f´ormula para a medida invariante foi obtida de um ajuste para a distribui¸c˜ao das iteradas em regime erg´odico. O correspondente expoente de Lyapunov, 0.597, est´a em bom acordo com 0.588, valor obtido da m´edia discreta de ln|Mr(xi)|.
Aperiodicityhub(PH)isthecommoncenterofperiodic(λ < 0)andchaotic(λ > 0) spirals which show up when a characteristic Lyapunov exponent λ of a dissipative dynamical system is projected onto a planar subset of its parameter space. The color plate in a previous page of this document shows one such PH in the lower right third. In this work Lyapunov spectra of three-dimensional dynamical systems were numericallycalculatedwithastandardalgorithmwhichreliesonrepeatedapplication of the Gram-Schmidt orghonormalization procedure on certain vectors in the phase space. PHs were then searched and found in the R¨ossler system, which has three parameters, namely, a,b, and c. In particular, for b = bh = 0.17872, a PH was found in the ca-plane with coordinates a = ah = 0.17694 and c = ch = 10.5706. By fixing a = ah and taking c as a control parameter in the interval 3 < c < ch, a complete sequence , i.e., a period-doubling sequence followed by a sequence of period-adding windows within the chaotic region, was observed. Fits to tens of return maps for local maxima in one of the dynamical variables allowed the construction of a oneparameter one-dimensional discrete map in the unit interval that synoptically mimics the dynamics of the flow. The convergence ratio for the period-adding sequence was estimated from the superstable cycles as 1.7, in good agreement with the value obtained from the R¨ossler system. At full ergodicity, a formula for the invariant measurewasobtainedfromafittothedistributionoftheiterates. Fromthatformula, we estimated a Lyapunov exponent of 0.597, which is in reasonable agreement with 0.588, the value obtained straightforwardly from the discrete iterates of the map.
Zaïbi, Ghada. "Sécurisation par dynamiques chaotiques des réseaux locaux sans fil au niveau de la couche MAC". Phd thesis, Toulouse 2, 2012. http://tel.archives-ouvertes.fr/tel-00867469.
Pełny tekst źródłaMoisan, Marcelo. "Synthèse d'observateurs par intervalles pour des systèmes biologiques mal connus". Nice, 2007. http://www.theses.fr/2007NICE4059.
Pełny tekst źródłaThis thesis presents new results in the field of robust state estimation, with applications to uncertain biotechnological systems. Mathematical models in biology are known to be highly uncertain. Therefore, we develop interval observers, based on the theory of positive differential systems. The objective of an interval observer is to obtain guaranteed upper and lower bounds for the unmeasured variables of the system. This is achieved considering that bounds on the uncertainties are known. Our observer design is featured by the so-called bundle of observers: we run in parallel several interval estimates and then we take the best inner envelope. We design interval observers for non-monotone systems. We develop an optimality criterion associated to interval observers, allowing to find the optimal gains for an observers bundle. We construct reverse time interval observers in order to improve convergence rate and we extend these principles to the estimation of unknown inputs. Some of the main advantages of interval observers are that they offer a way to manage uncertainty, considering a deterministic framework. They can be compared with other guaranteed state estimation methods, allowing improvements when taking the intersection of the predictions. They also allow to online assess the convergence of the estimates. The contributions presented in this thesis are illustrated through their application to biotechnological systems, namely in models of microorganism consuming one substrate. The application to a real industrial wastewater treatment plant let us validate the proposed methods. Finally, we also studied applications to the estimation of uncertain chaotic systems
Al-saedi, Mohammed Abdullah. "Examination of Acousto-Optic Chaos and Application to RF Signal Encryption and Recovery". University of Dayton / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1337808954.
Pełny tekst źródłaSendrowski, Janek. "Feigenbaum Scaling". Thesis, Linnéuniversitetet, Institutionen för matematik (MA), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96635.
Pełny tekst źródłaHruboš, Zdeněk. "Oscilátory generující nekonvenční signály". Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-239937.
Pełny tekst źródłaBlank, Iréne, i Magdalena Fridén. "“Man kan ju inte vara kunnig innan man fått en chans att lära sig” : En studie om byggbranschens upplevelser av yrkeselevers yrkeskunnande". Thesis, Stockholms universitet, Institutionen för pedagogik och didaktik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-144509.
Pełny tekst źródłaThe purpose of this study is to investigate what building and construction workers who mentor students from the vocational-education program of building and construction think about the students’ vocational skills. The study also hope to ascertain whether the construction workers have noticed any difference in the students’ vocational skills after the school reform of 2011. As aspiring guidance counsellors we aim to play the role of a bridge between the students and their chosen field of employment. For guidance counsellors it is important to have a solid grasp of the values and views found in different fields of employment and to manage the expectations of the students. For this study, we used a qualitative method in which we interviewed ten mentors on construction sites across the county of Wermland. The content of the interviews was later analysed and compared to Illeris’ theory of knowledge and competence. As a theoretical framework, we also used Bourdieu’s theory of Habitus. The results show that the mentors had difficulty defining vocational skills in a meaningful and concise manner, which leads to students finding it difficult to know what is expected of them. The characteristics of the students are better defined in Bourdieu’s theory of habitus. The results also revealed that the mentors did not have a clear picture of what was expected of a student and did not understand fully what the student would need to learn in order to pass the relevant examinations at the end of the course. We hope that this study will contribute to a clearer understanding of the role of the guidance counsellor, which in this case is to act as a bridge between those already working in the construction industry and the students hoping to work within the construction industry after they have graduated.
Беляев, А. В., i A. V. Belyaev. "Анализ стохастических моделей живых систем с дискретным временем : магистерская диссертация". Master's thesis, б. и, 2020. http://hdl.handle.net/10995/87578.
Pełny tekst źródłaThe work contains study of three models of biological systems with discrete time. In the first chapter a one-dimensional model of neural activity defined by a piecewise-smooth map is considered. It is shown that in the case of a one-dimensional model, the presence of a random disturbance leads to a spike generation. Two mechanisms of spike generation caused by the presence of a random disturbance in one of the parameters are investigated. It is illustrated that the coexistence of two attractors is not the only reason of spiking. To predict the level of noise intensity needed to generate spikes, the confidence-domain method is used, which is based on the stochastic sensitivity function. The main characteristics of interspike intervals depending on the intensity of the noise are also described. The second chapter is devoted to the application of the method of the stochastic sensitivity function to attractors of a piecewise-smooth one-dimensional map, which describes the population dynamics. The first stage of the study is a parametric analysis of the possible regimes of the deterministic model: determining the zones of existence of stable equilibria and chaotic attractors. The theory of critical points is used to determine the parametric boundaries of a chaotic attractor. In the case where the system is affected by a random noise, based on the stochastic sensitivity function, a description of the spread of random states around equilibrium and a chaotic attractor is given. A comparative analysis of the influence of parametric and additive noise on the attractors is carried out. Using the technique of confidence intervals, the probabilistic mechanisms of extinction of a population under the influence of noise are studied. Changes in the parametric boundaries of the existence of population under the influence of random disturbance are analyzed. In the third chapter the possible dynamic modes of the Lotka-Volterra model in determi\-nistic and stochastic cases are analyzed. Depending on the two parameters of the system, bifurcation diagram is constructed. Parametric zones of the existence of stable equilibria, cycles, closed invariant curves, and also chaotic attractors are studied. The bifurcations of the period doubling, Neimark--Sacker and the crisis are described. The complex shape of the basins of attraction is demonstrated. In addition to the deterministic system, the stochastic system is studied in detail, which describes the influence of external random disturbance. In the case of chaos, an algorithm for finding critical lines describing the boundary of a chaotic attractor is given. Based on the stochastic sensitivity function, confidence bands and ellipses are constructed to describe the spread of random states around a deterministic attractor.
Andrade, Vinícius Santos. "Análise da dinâmica caótica de pêndulos com excitação paramétrica no suporte". Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-26022016-144941/.
Pełny tekst źródłaThis work presents the modeling of an elastic pendulum with parametric excitation of the support and the analysis of the stability of the pendulum that one obtains disregarding the elasticity of the pendulum. The modeling of the pendulum and the equation of motions are obtained from the Lagrange\'s equations, using Newton\'s law. The concepts of bifurcation, Floquet\'s multipliers, Poincaré maps and sections and Lyapunov exponent are presented for the analysis of stability. The behavior of the pendulum with parametric excitation of the suport is investigated through computational simulation and results for different intervals of values of the external excitation amplitude are presented.
Duarte, Jorge das Neves. "Comportamento caótico em sistemas fisiológicos". Doctoral thesis, Universidade de Évora, 2006. http://hdl.handle.net/10174/11109.
Pełny tekst źródłaNazé, Pierre Marie Antoine Leite. "Tempos de primeira-passagem como medida de informação em sistemas fracamente caóticos". reponame:Repositório Institucional da UFABC, 2015.
Znajdź pełny tekst źródłaDissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Física, 2015.
Discutiremos uma classe de sistemas dinâmicos intermitentes na qual o espaço de fase é composto de duas regiões distintas: uma região laminar, onde a partícula desenvolve uma dinâmica lenta e quase regular até saltar para uma região turbulenta, onde a mesma desenvolve uma dinâmica caó- tica de curta duração até ser reinjetada de volta para a fase laminar, num processo que assim se repete. A fase laminar é causada pela existência de medida invariante innita, e a composição regularidade-caos resulta numa modalidade de caos fraco na qual a separação de trajetórias inicialmente muito próximas torna-se subexponencial (em sistemas caóticos usuais, essa separação é exponencial). Por conta desse tipo intermitência, o mapa apresentará um comportamento ergódico diferente daquele observado pelo teorema de Birkho, de modo que a distribuição de médias temporais de observáveis (com fatores próprios de normalização) é descrita essencialmente por uma estatística Mittag-Leer, ao invés de distribuições com limites assintóticos para delta de Dirac. Apresentaremos a lei responsável por tal comportamento, o teorema de Aaronson-Darling-Kac, que nos permitirá estender adequadamente certos observáveis, tais como o expoente de Lyapunov e a entropia de Kolmogorov- Sinai, de modo a inferir precisamente a existência desse tipo de instabilidade. Após um estudo das principais características ergódicas de tais sistemas, investigamos o número de primeiras-passagens da fase laminar para a turbulenta, e como obter informações-chave por meio dessa quantidade. Mostraremos também que a teoria de processos de renovação, usualmente empregada na literatura para esse m, é insuciente para descrever precisamente esse tipo de intermitência. Historicamente, esse tipo de sistema surgiu do estudo de mapas de primeiro retorno de certas seções do atrator de Lorenz, realizado nos anos 80 por Pomeau e Manneville. Atualmente, cadeias de tais mapas são empregadas no estudo de difusão anômala e passeios aleatórios com tempos de espera.
We discuss a class of intermittent dynamical systems in which the phase space is made up of two distinct regions: a laminar region, where the particle develops a slow and almost regular dynamic until it jumps to a turbulent region, where it develops a chaotic dynamic of short duration that is reinjected back into the laminating step, in a repeating process. The laminar phase is caused by the existence of innite invariant measure, and the regularity-chaos composition results in a weak mode in which the trajectories separation of two initial nearly points becomes subexponential (in usual chaotic systems, this separation is exponential). Because of this type of intermittency, the map will present a dierent behavior from that observed by ergodic Birkho's theorem, so that the distribution of average observable time (with its own normalization factors) is described essentially by a Mittag-Leer statistics, rather than distributions with asymptotic limit to the Dirac delta. We will present the law responsible for such behavior, the theorem Aaronson-Darling-Kac, which will allow us to extend properly certain observables, such as the Lyapunov exponent and entropy Kolmogorov-Sinai, in order to infer precisely the existence of such instability . After a study of the main ergodic characteristics of such systems, we investigate the number of rst-passages of the laminar stage for the turbulence, and how to get key information by that amount. We will also show that the theory of renewal processes, usually used in the literature for this purpose, is insucient to accurately describe this type of intermittency. Historically, this type of system emerged from the study of rst return maps of certain sections of the Lorenz attractor was accomplished in the 80's by Pomeau and Manneville. Currently chains of these maps are used in the study of anomalous diusion and random walks with waiting times.
Puma, Samuelsson Calixto. "Utsidan ger insidan en chans - En blandad metodstudie om vad vita svenskar tycker är viktigast av gemensam ras eller gemensam etnicitet i valet av vem man vill dejta". Thesis, Malmö universitet, Fakulteten för kultur och samhälle (KS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-21144.
Pełny tekst źródłaBartoloni, Bruno Figueiredo. "Mapas simpléticos com correntes reversas em tokamaks". Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-22112016-211638/.
Pełny tekst źródłaWe develop a symplectic (conservative) bidimensional map to study the evolution of magnetic field lines of a confined plasma in a tokamak. First, we considered two profiles for the plasma current density, studied in the literature: monotonic and non-monotonic, which give rise to different profiles for the poloidal magnetic field and different analytical profiles for the safety factor. In our simulations, we consider the system initially at equilibrium, where we observe, in Poincaré sections, only invariant lines. Then, we add a perturbation (external current), where we observe island chains and chaos in the system. In the second part, we consider a non-monotonic profile, but with a region which the current density becomes negative, which causes a divergence in the safety factor profile. Even considering only the sistem at equilibrium, very small island chains appeared around the shearless curves, and localized chaos. This feature was not observed for the other profiles at equilibrium. We can control the appearance of the regions with island chaind around the shearless curves and chaotic regions, by variation of parameters related to the density current expression. To comprove our results, we aplly the same profile to the other symplectic map. Finally, we consider a safety factor profile in a divertor configuration. We also have a divergence on in the safety factor profile. We observe similar features (island chains around shearless curves and localized chaos) when we consider a non-monotonic safety factor profile with a reversed density current.
Zhang, Qiong. "Ambivalence & ambiguity Chinese-American literature beyond politics and ethnography = Mao dun qing jie yu yi shu mo hu xing : chao yue zheng zhi he zu yi de Meiguo Hua yi wen xue /". Shanghai : Fu dan da xue chu ban she, 2006. http://books.google.com/books?id=cQ1IAAAAMAAJ.
Pełny tekst źródłaKositsakulchai͏̈, Ekasit. "Modélisation de la dynamique de l'hydrosystème du bassin du Mae Klong (Thai͏̈lande). Une esquisse de système interactif d'aide à la décision pour la gestion de l'eau". Montpellier 2, 2001. http://www.theses.fr/2001MON20008.
Pełny tekst źródłaNilsson, Erik. "Waves of change : traditional religion among the Urak Lawoi, sea nomads of Ko Lanta, Thailand". Thesis, University of Gävle, Ämnesavdelningen för kultur- och religionsvetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-6359.
Pełny tekst źródłaThis essay is the result of a field study in Ko Lanta in Thailand, during October-December 2009. The purpose of the study was to document the traditional religion of Urak Lawoi and to analyze in what way their life and beliefs have changed during the last 20 years.
Urak Lawoi is the name of one of the sea nomadic ethnic groups who lives along the shores of Myanmar, Thailand and Malaysia. They are spread on many of the islands in the Andaman Sea archipelago and Ko Lanta is the main settlement. Ural Lawoi is regarded as the indigenous people of the island and they live there as a minority with Muslims and Thai-Chinese.
The traditional religion of Urak Lawoi is built upon the animistic belief of their ancestors. The religious leader and link between the spirit world and the humans is the To Maw. The family bonds are strong in the Urak Lawoi community and the elders play an important role in life and after death, when they can keep on watching out for their offspring. For the living it is important to do the rituals and ceremonies in the right way to obtain good luck and avoid bad luck.
In the last 20 years Ko Lanta has experienced a tremendous process of change caused by the increasing tourism. The conditions of the Urak Lawoi and their way of life have dramatically changed. The modern society with money economy, new technical solutions and a rationalized large-scale fishing has rapidly changed their way of life. The tsunami catastrophe, and the following attention from help organizations and missionary activities, has escalated the process. The traditional religion and culture of the Urak Lawoi is still present on the island but it is declining and changing under the influence of the constant pressure from other interests.
Nilsson, Erik. "Forces of change : A theoretical analysis of syncretism between Theravada Buddhism and animistic indigenous beliefs in Thailand". Thesis, Högskolan i Gävle, Avdelningen för kultur-, religions- och utbildningsvetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-8073.
Pełny tekst źródłaPriyadarshini, Itishree. "Spatiotemporal Chaos in Coupled Map Lattice". Thesis, 2011. http://ethesis.nitrkl.ac.in/2694/2/report.pdf.
Pełny tekst źródłaChung, Wen-Chin, i 鍾文欽. "Behavior of Coupled Logistic Map and Controlling Chaos". Thesis, 2001. http://ndltd.ncl.edu.tw/handle/46893541720540769007.
Pełny tekst źródłaLaMacchia, Brian, i Jason Nieh. "The Standard Map Machine". 1989. http://hdl.handle.net/1721.1/6015.
Pełny tekst źródłaNieh, Jason. "Using Special-Purpose Computing to Examine Chaotic Behavior in Nonlinear Mappings". 1989. http://hdl.handle.net/1721.1/6822.
Pełny tekst źródłaMeyerson, Dmitry. "Electostatic plasma edge turbulence and anomalous transport in SOL plasmas". Thesis, 2014. http://hdl.handle.net/2152/27160.
Pełny tekst źródłatext
Müller-Bender, David. "Nonlinear Dynamics and Chaos in Systems with Time-Varying Delay". 2020. https://monarch.qucosa.de/id/qucosa%3A72483.
Pełny tekst źródłaIn systems with time-delay, the evolution of a system is not uniquely determined by the state at the current time. The history of the state must be known for a time period of finite duration, where the duration is called delay and determines the memory length of the system. In this work, fundamental effects arising from a temporal variation of the time-delay are investigated. In the first part, two classes of periodically time-varying delays are introduced. They are related to a specific dynamics of a one-dimensional iterated map that is defined by the time-varying delay. Referring to the related map dynamics the classes are called conservative or dissipative. Systems with conservative delay can be transformed into systems with constant delay, and thus have the same characteristic properties as constant delay systems. In contrast, there are fundamental differences, for instance, in the tangent space dynamics, between systems with dissipative delay and systems with constant delay. In the second part, these results are applied to systems with a delay that is considered large compared to the internal relaxation time of the system. It is shown that a mechanism induced by dissipative delays leads to new kinds of regular and chaotic dynamics. The dynamics caused by the so-called resonant Doppler effect is fundamentally different from the behavior known from systems with constant delay. For instance, the chaotic attractors in systems with dissipative delay are very low-dimensional compared to typical ones arising in systems with constant delay. An example of this new kind of low-dimensional dynamics is given by the so-called Laminar Chaos. It is characterized by nearly constant laminar phases of periodic duration, where the amplitude varies chaotically. In the third part of this work, it is shown that Laminar Chaos is a robust phenomenon, which survives perturbations such as noise and can be observed experimentally. Therefore experimental data is provided and a nonlinear delayed Langevin equation is analyzed. Using the robust features that characterize Laminar Chaos, methods for time series analysis are developed, which enable us to detect Laminar Chaos without the knowledge of the specific system that has generated the time series. By these methods Laminar Chaos can be detected even for comparably large noise strengths, where the characteristic properties are nearly invisible to the eye.:1. Introduction 2. Dissipative and conservative delays in systems with time-varying delay 3. Laminar Chaos and the resonant Doppler effect 4. Laminar Chaos: a robust phenomenon 5. Summary and concluding remarks A. Appendix
(10702248), Hugo Esquivel. "Efficient Spectral-Chaos Methods for Uncertainty Quantification in Long-Time Response of Stochastic Dynamical Systems". Thesis, 2021.
Znajdź pełny tekst źródłaWeirauch, Angelika. "Kreativität – wie man Sinn und Freude im Chaos der Existenz findet". Master's thesis, 2009. https://slub.qucosa.de/id/qucosa%3A3296.
Pełny tekst źródła(8770355), Maaninee Gupta. "Finding Order in Chaos: Resonant Orbits and Poincaré Sections". Thesis, 2020.
Znajdź pełny tekst źródłaResonant orbits in a multi-body environment have been investigated in the past to aid the understanding of perceived chaotic behavior in the solar system. The invariant manifolds associated with resonant orbits have also been recently incorporated into the design of trajectories requiring reduced maneuver costs. Poincaré sections are now also extensively utilized in the search for novel, maneuver-free trajectories in various systems. This investigation employs dynamical systems techniques in the computation and characterization of resonant orbits in the higher-fidelity Circular Restricted Three-Body model. Differential corrections and numerical methods are widely leveraged in this analysis in the determination of orbits corresponding to different resonance ratios. The versatility of resonant orbits in the design of low cost trajectories to support exploration for several planet-moon systems is demonstrated. The efficacy of the resonant orbits is illustrated via transfer trajectory design in the Earth-Moon, Saturn-Titan, and the Mars-Deimos systems. Lastly, Poincaré sections associated with different resonance ratios are incorporated into the search for natural, maneuver-free trajectories in the Saturn-Titan system. To that end, homoclinic and heteroclinic trajectories are constructed. Additionally, chains of periodic orbits that mimic the geometries for two different resonant ratios are examined, i.e., periodic orbits that cycle between different resonances are determined. The tools and techniques demonstrated in this investigation are useful for the design of trajectories in several different systems within the CR3BP.
"Chaos et politique: limmense problème des guerres de religion en france au xvie siècle et ses acheminements". Tese, MAXWELL, 2003. http://www.maxwell.lambda.ele.puc-rio.br/cgi-bin/db2www/PRG_0991.D2W/SHOW?Cont=4366:pt&Mat=&Sys=&Nr=&Fun=&CdLinPrg=pt.
Pełny tekst źródła