Relevant bibliographies by topics / Non-linear dynamics / Dissertations / Theses
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Dissertations / Theses on the topic 'Non-linear dynamics'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

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1

Ganapathy, Annadurai Shathiyakkumar. "Non-Linear Electromechanical System Dynamics." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1799.

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Electromechanical systems dynamics analysis is approached through nonlinear differential equations and further creating a state space model for the system. There are three modules analyzed and validated, first module consists two magnet coupled with a mass spring damper system as a band-pass system, Low-pass equivalent system and Low-pass equivalent system through perturbation analysis. Initially Band Pass frameworks for the systems are formulated considering the relation between the mechanical forcing and current. Using Mathematical tools such as Hilbert transforms, Low-Pass equivalent of the
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2

Tcheou, Genevieve. "Non-linear dynamics of mooring lines." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/10524.

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3

Wilson, Jonathan P. "Non-linear dynamics and power systems." Thesis, University of Bath, 2000. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341136.

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4

Miao, Quan. "Nuclear Dynamics in Linear and Non-linear X-ray Processes." Doctoral thesis, KTH, Teoretisk kemi och biologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-133432.

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New generations of brilliant synchrotron radiation sources and intense X-ray and optical lasers have opened unprecedent opportunities in linear and non-linear spectroscopies of molecules. This together with new instrumentation calls for further development of theory to explain observations and suggest new experiments. These two goals are the main objectives of the present thesis. In the first part of the thesis we study resonant inelastic X-ray scattering of the oxygen molecule. Recent experimental data of O2 show the dependence of the vibrational profile on the polarization of the X-rays. Thi
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5

Cho, Byung Moon. "Protein dynamics measured by non linear spectroscopy." Thesis, Imperial College London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408516.

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6

Sérandour, Guillaume. "Non-linear dynamics of vibratory rate sensors." Thesis, University of Nottingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423468.

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7

Abbs, Charlotte. "Quantum dynamics of non-linear optomechanical systems." Thesis, University of Nottingham, 2014. http://eprints.nottingham.ac.uk/27692/.

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This thesis explores the dynamics of optomechanical systems, which use radiation pressure to couple together optical and mechanical modes. Such systems display dynamics ranging from the quantum to the classical, with a variety of applications including ground state cooling and precision measurements. In this thesis two different geometries are presented for such a system in the form of the ‘reflective’ and ‘dispersive’ systems. Different aspects of the dynamics are investigated numerically and analytically. Firstly the reflective system is introduced, which consists of a cavity formed from a f
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8

Pechenik, Leonid. "Pattern formation and non-linear dynamics of non-equilibrium systems /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC IP addresses, 2000. http://wwwlib.umi.com/cr/ucsd/fullcit?p9970653.

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9

Ziemianski, Michal. "Non-linear balanced models for baroclinic waves." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343201.

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10

Panadès, i. Guinart Carles. "Non-linear fluid dynamics in oscillatory cylindrical cavities." Doctoral thesis, Universitat Politècnica de Catalunya, 2013. http://hdl.handle.net/10803/129572.

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Even though the transition to turbulence has been studied for over a century, its complete comprehension still remains unclear even for the simplest flows and continues to be a daunting challenge for the scientific community. Among these, there is the transition from the von K\'arm\'an vortex street to turbulent wakes. The complexity of this problem poses a series of difficulties that leaves little room for manoeuvre, so other ways to tackle this question have to be sought. A reasonable option is the analysis of the instability phenomena that other flows with the same symmetry group undergo. D
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11

Rapatski, Brandy Lynn. "The non-linear transmission dynamics of HIV/AIDS." College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/1983.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2004.<br>Thesis research directed by: Applied Mathematics and Scientific Computation Program. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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12

Sutha, Gde Pradnyana. "Non-linear dynamics of tautly moored offshore platforms." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314874.

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13

Spasov, Spas. "Non-linear electron dynamics in dilute nitride alloys." Thesis, University of Nottingham, 2009. http://eprints.nottingham.ac.uk/10881/.

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This thesis describes an experimental study of the electronic properties of the dilute nitride GaAs1¡xNx alloy. This is a semiconductor belonging to a class of highly mismatched III-N-V alloys. The incorporation of isoelectronic N on the pnictide (e.g. As) site of GaAs gives rise to a highly localised electronic state, whose energy level is resonant with the continuum of conduction band (CB) states of the host GaAs lattice. The interaction between these two sets of states causes the formation of a fully developed energy gap in the CB of the host crystal and makes possible the observation of a
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14

Dimelow, David J. "Non-linear dynamics of an offshore mooring tower." Thesis, University of Aberdeen, 1997. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU092912.

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Offshore mooring towers are one of a number of single-point mooring (SPM) systems which provide a berthing point for tankers, enabling the transfer of crude oil to or from the moored vessel. The periodic slackening of the mooring hawser between the vessel and the tower gives rise to a discontinuously non-linear restoring function. Hence, the wave-induced motions of the tower can be highly complex, with the possibility of large amplitude, and potentially hazardous motions. A large amount of work has been carried out in studying single-point mooring systems. However, much of this work has focuse
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15

Li, Zhuo. "Non-linear dynamics of polymer solutions in microfluidics." Thesis, University of Manchester, 2011. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.549085.

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16

Hughes, Jonathan L. "Applications of Stability Analysis to Nonlinear Discrete Dynamical Systems Modeling Interactions." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/3819.

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Many of the phenomena studied in the natural and social sciences are governed by processes which are discrete and nonlinear in nature, while the most highly developed and commonly used mathematical models are linear and continuous. There are significant differences between the discrete and the continuous, the nonlinear and the linear cases, and the development of mathematical models which exhibit the discrete, nonlinear properties occurring in nature and society is critical to future scientific progress. This thesis presents the basic theory of discrete dynamical systems and stability analysis
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17

Curtiss, Geoffrey Aylwyn. "Non-linear, non-spherical bubble dynamics near a two fluid interface." Thesis, University of Birmingham, 2009. http://etheses.bham.ac.uk//id/eprint/411/.

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The interactions of bubbles with rigid and free boundaries have been well documented. Toroidal bubble formation has been observed, with jetting directed toward and away from the two types of interface respectively. This work generalises these interactions by studying the effect of a two fluid interface supporting a density discontinuity. Such interactions may provide significant new insight into the mechanisms present in bubble assisted mixing processes, and in biomedical procedures including laser ablation and sonoporation. A numerical investigation has been conducted to examine the essential
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18

Schilhabel, Thomas Erik. "Linear and non-linear dynamics in an endo-observer's frame of reference." Thesis, University of Southampton, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.392637.

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19

Tice, Julian H. "Using non-linear/chaotic dynamics for interest rate determination." Thesis, Online version, 1998. http://ethos.bl.uk/OrderDetails.do?did=1&uin=uk.bl.ethos.310826.

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20

Fahrenkopf, Max A. "Optimization, Dynamics and Stability of Non-Linear Separation Processes." Research Showcase @ CMU, 2014. http://repository.cmu.edu/dissertations/390.

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In this thesis we develop a non convex non-linear programming problem that determines the minimum run time of a rapid, gel-free DNA separation technique called micelle end-labeled free solution electrophoresis (ELFSE). Micelle ELFSE is typically performed in capillary electrophoresis where the capillary length, electric field strength, and micelle drag tag size are the primary tuning variables. Using optimization, we demonstrate that capillary electrophoresis can be used to separate up to 600 bases in under 50 minutes. A significant improvement in performance is then shown to be achievable by
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21

Samuel, L. G. "The application of non-linear dynamics to teletraffic modelling." Thesis, Queen Mary, University of London, 1999. http://qmro.qmul.ac.uk/xmlui/handle/123456789/3819.

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22

Chang, Sheryl Le. "Non-linear effects of social connectivity on epidemic dynamics." Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/23908.2.

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Epidemics have a substantial impact on society, and the suppression through various interventions is crucial for public health. There is a long tradition of using quantitative epidemic models to deepen the understanding of interdependent epidemic and intervention dynamics. However, modelling complex human responses to intervention adoption, while relating the individual decision-making to the overall compliance behaviour, remains a challenge. In general, the intervention adoption is strongly affected by social connectivity that varies across the affected population, and in turn is affected by
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23

Meshcheriakov, Dmytro. "Non linear dynamics of magnetic islands in fusion plasmas." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM4785.

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Les modes de déchirement sont connus pour détériorer le confinement et limiter les performances dans les machines de fusion. Plusieurs études sur les modes de déchirements ont été menées, en incluant un degré croissant de complexité dans le modèle physique afin de mieux comprendre les observations expérimentales. Une de ces extensions est l'introduction d'une description du plasma comme un fluide à deux espèces, ions et électrons, dont les dynamiques sont fortement différentes. Un autre mécanisme physique connu pour être important est la courbure du champ magnétique non perturbé. Dans cette th
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24

Nori, Matteo <1990&gt. "Simulating highly non-linear dark matter dynamics beyond LCDM." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amsdottorato.unibo.it/8992/1/PhD%20Thesis.pdf.

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Most of the presently available data regarding the structure and the properties of the Universe are well described within the standard LCDM cosmological scenario. However, the underlying assumptions on which the standard framework is based on have been tested only over a restricted range of cosmic scales and cosmic epochs, and extremely severe fine-tuning problems still affect the rather peculiar choice of its parameters. Therefore, a wide range of extended cosmological models have been proposed in the literature to overcome these obstacles. Given the expected excellent high-precision data tha
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25

Montanari, Carlo Emilio. "Diffusive approach for non-linear beam dynamics in a circular accelerator." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19289/.

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Nella fase di design e simulazione di un acceleratore circolare, risulta fondamentale avere una buona comprensione del moto betatronico non-lineare delle singole particelle, e di come questo interferisce con la qualità del fascio. In questo lavoro vengono studiati sistemi Hamiltoniani sottoposti a perturbazioni stocastiche tramite un framework diffusivo, basato sull'equazione di Fokker-Planck. Tale studio viene poi applicato all'analisi del moto betatronico non-lineare e al problema dell'Apertura Dinamica. In particolare, vengono impostate le basi per formulare un metodo di interpolazione di
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26

Gurkan, Niyazi Ersan. "Non-linear Mathematical Modeling Of Gear Rotor Bearing Systems Including Bearing Clearance." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606798/index.pdf.

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ABSTRACT NON-LINEAR MATHEMATICAL MODELING OF GEAR-ROTOR-BEARING SYSTEMS INCLUDING BEARING CLEARANCE G&Uuml<br>RKAN, Niyazi Ersan M.S. Department of Mechanical Engineering Supervisor: Prof. Dr. H. Nevzat &Ouml<br>ZG&Uuml<br>VEN November 2005, 130 pages In this study, a non-linear mathematical model of gear-rotor systems which consists of elastic shafts on elastic bearings with clearance and coupled by a non-linear gear mesh interface is developed. The mathematical model and the software (NLGRD 2.0) developed in a previous study is extended to include the non-linear effects due to bearing c
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27

Defoort, Martial. "Non-linear dynamics in nano-electromechanical systems at low temperatures." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENY061/document.

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L'étude des systèmes non-linéaires ouvre un large champ d'investigation en recherche fondamentale, dans cette optique les Systèmes Nano-Electro-Mécanique (NEMS) sont des outils de premier choix. Ce manuscrit met en avant l'utilisation des propriétés non-linéaires de nano-résonateurs pour la physique fondamentale. À la suite d'une calibration rigoureuse de notre dispositif expérimental, nous avons caractérisé les principaux paramètres associés à la résonance de nos structures avec, en particulier, la non-linéarité de Duffing qui est à la source des mécanismes de couplage entre les différents mo
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28

Harter, Terry Lee. "Application of classical non-linear Liouville dynamic approximations." Diss., Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/53939.

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This dissertation examines the application of the Liouville operator to problems in classical mechanics. An approximation scheme or methodology is sought that would allow the calculation of the position and momentum of an object at a specified later time, given the initial values of the object's position and momentum at some specified earlier time. The approximation scheme utilizes matrix techniques to represent the Liouville operator. An approximation scheme using the Liouville operator is formulated and applied to several simple one-dimensional physical problems, whose solution is obtainab
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29

Tierney, Christopher John. "Non-linear dynamics of couple SQUID ring : tank circuit systems." Thesis, University of Sussex, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360589.

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30

Georgakis, Christos Thomas. "Non-linear dynamics of cable-stays and cable-structure interaction." Thesis, University of Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369527.

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31

Richardson, Thomas Stuart. "Continuation methods applied to non linear flight dynamics and control." Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268783.

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32

Garland, James Matthew. "Beam dynamics studies of the EMMA linear non-scaling FFAG." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/beam-dynamics-studies-of-the-emma-linear-nonscaling-ffag(5b375a2d-0636-422d-a0d6-2cc941ebd01f).html.

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The development of charged particle accelerators is today reaching far beyond the realm of fundamental particle physics research. Many non-trivial social and political problems may find part of their solution lies in accelerator physics. For example, with fossil fuels becoming ever more controversial and expensive to obtain, the use of Accelerator Driven Sub-critical Reactors (ADSR) powered by rapid cycling, high current proton accelerators and thorium fuel could become part of the energy solution. Through the simplicity of the Bragg peak, cancer therapy could be enhanced through the use of hi
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33

Moille, Grégory. "Non-Linear Dynamics in Semiconductor Nano-Structures for Signal Processing." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS174/document.

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Cette thèse porte sur la numérisation de signaux hyperfréquences en utilisant une horloge optique, possédant une gigue temporelle très faible en comparaison des horloges électroniques. Une faible gigue est un facteur clé de l’échantillonnage à haute performance, car l’horloge commande l’ouverture d’une “porte” qui extrait les échantillons du signal à intervalles réguliers. Cette thèse décrit deux approches originales : l’échantillonnage purement optique et l’échantillonnage électro-optique.Une porte électro-optique se constitue d’une ligne coplanaire transportant le signal électrique. Cette li
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34

Wang, Yu-Hsing. "Attenuation in soils and non-linear dynamic effects." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/19582.

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35

Stevens, Christopher E. "Study of Transition Metal Dichalcogenides Via Linear and Non-Linear Spectroscopy." Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7955.

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Beginning with the discovery of graphene, two-dimensional materials have amassed a strong interest. Like graphene, transition metal dichalcogenides (TMDs) can be coaxed into atomically thin sheets which have some impressive properties. Unlike graphene, TMDs also has a change in their electronic band structure causing an indirect band gap to a direct gap transition in its monolayer form. Additionally, these materials lose their inversion symmetry as a monolayer. These unique properties make TMDs a strong candidate for being used in optoelect
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36

Neild, S. A. "Using non-linear vibration techniques to detect damage in concrete bridges." Thesis, University of Oxford, 2001. http://ora.ox.ac.uk/objects/uuid:f116c6f1-3179-463b-9ff6-b83e48a71aaf.

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There has been much work published in recent years on the use of vibration characteristics to detect damage in bridges. Almost all of this work has been based on the assumption that the vibration is linear, i.e. the natural frequencies are not dependent on the amplitude of oscillation. The aim of the work presented here was to investigate the possibility of using changes in the non-linear vibration characteristics to detect damage in reinforced concrete bridges. These changes in the non-linear vibration characteristics were studied by conducting impact excitation vibration tests o reinforced c
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37

Pedchote, C. "Parameter estimation for non-linear systems: an application to vehicle dynamics." Thesis, Engineering Systems Department, 2009. http://hdl.handle.net/1826/3896.

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This work presents an investigation into the parameter estimation of suspension components and the vertical motions of wheeled vehicles from experimental data. The estimation problems considered were for suspension dampers, a single wheel station and a full vehicle. Using conventional methods (gradient-based (GB), Downhill Simplex (DS)) and stochastic methods (Genetic Algorithm (GA) and Differential Evolution (DE)), three major problems were encountered. These were concerned with the ability and consistency of finding the global optimum solution, time consumption in the estimation process, and
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38

Pedchote, Chamnarn. "Parameter estimation for non-linear systems : an application to vehicle dynamics." Thesis, Cranfield University, 2003. http://dspace.lib.cranfield.ac.uk/handle/1826/3896.

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This work presents an investigation into the parameter estimation of suspension components and the vertical motions of wheeled vehicles from experimental data. The estimation problems considered were for suspension dampers, a single wheel station and a full vehicle. Using conventional methods (gradient-based (GB), Downhill Simplex (DS)) and stochastic methods (Genetic Algorithm (GA) and Differential Evolution (DE)), three major problems were encountered. These were concerned with the ability and consistency of finding the global optimum solution, time consumption in the estimation process, and
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39

Schittenkopf, Christian, Georg Dorffner, and Engelbert J. Dockner. "On non-linear, stochastic dynamics in economic and financial time series." SFB Adaptive Information Systems and Modelling in Economics and Management Science, WU Vienna University of Economics and Business, 1999. http://epub.wu.ac.at/1586/1/document.pdf.

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The search for deterministic chaos in economic and financial time series has attracted much interest over the past decade. However, clear evidence of chaotic structures is usually prevented by large random components in the time series. In the first part of this paper we show that even if a sophisticated algorithm estimating and testing the positivity of the largest Lyapunov exponent is applied to time series generated by a stochastic dynamical system or a return series of a stock index, the results are difficult to interpret. We conclude that the notion of sensitive dependence on initial cond
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40

Fowler, Daivid Robert. "Non-linear electron dynamics in semiconductor superlattices and dilute nitride alloys." Thesis, University of Nottingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422744.

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41

Johnson, Barry Roger. "Non-linear dynamics of combustion reactions in a well stirred reactor." Thesis, University of Leeds, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305392.

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42

Reusch, Christian. "On the non-linear dynamics of financial market risk and liquidity." Thesis, London School of Economics and Political Science (University of London), 2008. http://etheses.lse.ac.uk/2728/.

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This thesis provides a novel empirical treatment of the dynamics of financial market risk and liquidity, two very important areas both for financial research as well as to practitioners in the financial markets: We devise empirical non-linear time series models of the two concepts that specifically take into account 'explosive', self-reinforcing dynamic patterns. While 'conventional' empirical models are often 'linear' and tend to neglect these effects, real-life evidence such as e.g. the 1987 crash, the large stock market drops on February 27th, 2007 or the huge losses posted by investment ba
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43

Samuel, Louis Gwyn. "Application of non-linear dynamics to traffic modelling in communications networks." Thesis, Queen Mary, University of London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.392164.

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44

Tanese, Dimitrii. "Non-linear dynamics of one-dimensional polaritons gases in semiconductor microcavities." Paris 6, 2013. http://www.theses.fr/2013PA066795.

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Cette thèse est consacrée à l’étude de gaz de polaritons dans des microcavités semiconductrices unidimensionnelles. Grâce au contrôle de la gravure de microstructures, plusieurs géométries ont été étudiées et une ingénierie du potentiel 1D a été possible. Nous avons analysé la propagation des condensats de polaritons dans des fils photoniques et nous avons mis en évidence une forte réduction de la diffusion par le désordre due aux interactions entre ces quasi-particules. La condensation dans un potentiel périodique unidimensionnel a également été explorée. Nous avons montré comment les interac
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45

Newlon, Scott. "INTRUDER DYNAMICS RESPONSE OF GRANULAR MEDIA WITH NON-LINEAR INTERACTION POTENTIALS." OpenSIUC, 2017. https://opensiuc.lib.siu.edu/theses/2252.

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An investigation into the intruder dynamics of dry dimensionless, frictionless discs in bidispersed, disordered systems is carried out using computer simulations. The velocity of an intruder particle driven under constant force is used as a tool to determine scaling of velocity as a function of packing pressure. Using these velocity for a range of pressures, $4 \times 10^{-7}\leq P \leq 4 \times 10^{-2}$. A universal scaling relation is proposed and plotted. The force required to cause the packing to yield to the driven intruder is determined and plotted as function of pressure. Power la
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46

AHMED, RIZWAN. "Experimental Investigation Of Non-Linear Structural Dynamics of Shrouded Turbine Blade." Doctoral thesis, Politecnico di Torino, 2022. https://hdl.handle.net/11583/2972153.

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47

Badr, Ahmed El-said A. "Stability and dynamic behaviour of steel structures with non-linear restraints." Thesis, University of Strathclyde, 1986. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21479.

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This study was undertaken to investigate the effects of imperfections in the initial geometry of bracing members on the stability of the structural frameworks. The general non-linear behaviour of frameworks, consisting of single columns, or multistorey frames stiffened by curved bracings, were studied under the effects of combined vertical and horizontal load systems. The study was divided into two main parts. In part one, the study examined the structural frameworks in the following situations: i) Influence of initial bowing on the behaviour of individual members subjected to axial or eccentr
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48

Huang, Shiling. "Linear stability analysis of non-reacting and reacting elliptical jets." Diss., This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06062008-164706/.

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49

Bergkvist, Tommy. "Non-linear dynamics of Alfvén eigenmodes excited by fast ions in tokamaks." Doctoral thesis, KTH, Fusionsplasmafysik, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4320.

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The tokamak is so far the most promising magnetic configuration for achieving a net production of fusion energy. The D-T fusion reactions result in 3.5 MeV alpha-particles, which may destabilize Alfvén eigenmodes through wave-particle interaction. These instabilities redistribute the alpha-particles from the central region of the plasma towards the edge, where they are thermalized, and hence result in a reduced heating efficiency. The high-energy alpha-particles may even be thrown out of the plasma and may damage the wall. To investigate the destabilization of Alfvén eigenmodes by high-energy
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50

Bergkvist, Tommy. "Non-linear dynamics of Alfvén eigenmodes excited by fast ions in tokamaks /." Stockholm, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4320.

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