Dissertations / Theses on the topic 'Hysteresis'
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Adamonis, Jolita [Verfasser]. "Sunk cost hysteresis and hysteresis losses / Jolita Adamonis." Gießen : Universitätsbibliothek, 2018. http://d-nb.info/1153334666/34.
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Jaeger, Paul. "Hysteresis and Avalanches." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-154238.
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In this thesis crackling systems have been investigated. Applying an external force on these systems they respond with events of all sizes. The size distribution follows a power law of the form S¯
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Piscitelli, Laura. "Hysteresis in economics." Thesis, University of Strathclyde, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433594.
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Lang, Dany. "Hysteresis in unemployment." Aix-Marseille 2, 2004. http://www.theses.fr/2004AIX24009.
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Cette thèse se propose d'explorer les diverses facettes du concept d'hystérèse et d'en examiner la portée et les enjeux pour l'analyse du taux de chômage. Plus précisément, ce travail tente de déterminer dans quelle mesure, et sous quelles conditions, les modèles d'hystérèse du taux de chômage permettent des modélisations opératoires, différentes de celles proposées dans les modèles dont les dynamiques sont fondées sur les concepts de taux de chômage naturel (NRU, Natural Rate of Unemployment) et de taux de chômage n'accélérant pas l'inflation (NAIRU, Non Accelerating Inflation Rate of Unemployment). Le propos de déploie en trois moments. Le premier propose une analyse approfondie des ± Autres α de l'hystérèse, le NRU et le NAIRU, et de leurs dynamiques macroéconomiques associées. Le deuxième s'attache à l'examen de trois approches de l'hystérèse en économie, et aux problèmes qu'elles soulèvent, en particulier en termes d'attraction : l'hystérèse vue comme la présence d'une racine unitaire, l'hystérèse envisagée comme une théorie des changements structurels endogènes, et l'hystérèse définie comme un processus d'ajustement en déséquilibre (disequilibrium adjustment). Le troisième chapitre porte sur l'hystérésis ± véritable α, c'est-à-dire correspondant à la définition du phénomène utilisée dans les champs scientifiques comme la physique ou la biologie. Outre l'etablissement d'une typologie des principaux modèles d'hystérèse, et l'analyse critique détaillée des différents modèles de NRU, de NAIRU et d'hystérèse, cette thèse tente d'apporter sa contribution propre à l'économie appliquée de l'hystérèse, puisqu'une version hystérétique de la relation d'Okun, ainsi qu'une version hystérétique de la ± courbe de Phillips α, sont construites puis testéesThe aim of this thesis is to explore the different aspects of the concept of hysteresis, and to examine its import and the issues it raises for the analysis of unemployment. More precisely, the work tries to determine to what extent, and under what conditions, hysteresis gives rise to operational models of unemployment that differ from models whose dynamics are founded on the Natural Rate of Unemployment (NRU) or on the Non Accelerating Inflation Rate of Unemployment (NAIRU) concepts. The thesis consists of three chapters. The first one proposes a detailed analysis of the Othersʺ of hysteresis, the NRU and the NAIRU, and of their associated macroeconomic dynamics. The second chapter examines three approaches to hysteresis in economics, and the problems associated with them. . These approaches are hysteresis seen as the presence of a unit root, hysteresis conceived as a theory of endogenous structural change, and hysteresis defined as a process of disequilibrium adjustment. The last chapter is about genuineʺ hysteresis, the definition of which corresponds to the definition given to the phenomenon of hysteresis in scientific fields like physics or biology. Apart from establishing a typology of the main models of hysteresis, and providing a detailed critical analysis of the different models of the NRU, NAIRU and hysteresis, this thesis also makes its own contribution to applied economics, by constructing and then testing hysteretic versions of Okun's law and the Phillips curveʺ
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Likens, Aaron D. "Hysteresis in visual search /." Read thesis online, 2010. http://library.uco.edu/UCOthesis/LikensAD2010.pdf.
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Kopfová, Jana. "Differential equations involving hysteresis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0007/NQ29055.pdf.
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Morgan, Justin. "HYSTERESIS EFFECTS IN DRIVING." Doctoral diss., University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3236.
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This dissertation presents two studies examining the interaction between workload history and driver mental workload. The first experiment focuses on testing for the presence of a hysteresis effect in the driving task. The second experiment examines the proposition that cueing impending periods of higher task demand can reduce the impact of any such potential hysteresis effects. Thirty-two licensed drivers served as participants and all served in both studies. Using the directions provided by a Heads-Up-Display navigation system, participants followed a pre-set route in the simulated environment. At specified points within the drive, the navigation system would purposefully fail which required drivers to relay a ten digit alphanumeric error code to a remote operator in order to reset the system. Results indicated that this increase in task demand from the navigation system's failure leads to a significant increase in perceived mental workload as compared to pre-failure periods. This increase in driver mental workload was not significantly reduced by the time the drive ended, indicating the presence of a hysteresis effect. In the second experiment, the navigation system provided a completely reliable visual warning before failure. Results indicate that cueing had neither an effect on perceived mental workload, nor any ameliorating effect on the hysteretic type effect seen in mental workload recovery. The conclusion of these findings being that the overall safety and efficiency of the surface transportation system would likely improve by designs which accommodate the periods immediately following a reduction in stress. Whether from leaving high demand areas such as work zones or in the period immediately after using a in-car information device such as a GPS or a cell phone, these post-high workload periods are associated with increased variability in driver inputs and levels of mental workload.Ph.D.
Department of Psychology
Sciences
Psychology PhD
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Valiullin, Rustem, Jörg Kärger, and Peter Monson. "Adsorption hysteresis in nanopores." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-196715.
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Galinaitis, William S. "Two Methods for Modeling Scalar Hysteresis and their use in Controlling Actuators with Hysteresis." Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/40390.
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The accurate control of a positioning system that exhibits scalar hysteresis requires a control strategy that incorporates compensation for the hysteresis. One approach is to develop a compensator based on an inverse hysteresis operator. This method uses an open loop control in which the inverse operation adjusts the actuator input to compensate for the hysteresis in the system. When this is accomplished, the composite operation produces a linear relationship between a reference input and the system output. The difficulty of this method lies in developing an accurate model of the hysteresis for which an inverse operator can be obtained.
In this work, a system with hysteresis is modeled by a generic model based on a Preisach type operator. First, it is shown that the operator has an inverse and that both have approximations that are convergent. Then, simulation and experimental data are used to demonstrate the ability of the operator to accurately model a hysteresis relationship. This lays the foundation for then demonstrating the concept of inverse compensation.Ph. D.
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Coman, Ciprian Danut. "Non-smooth oscillators with hysteresis." Thesis, University of Bath, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340952.
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Naumov, Sergej, Rustem Valiullin, and Jörg Kärger. "Adsorption hysteresis phenomena in mesopores." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-194077.
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Naumov, Sergej, Rustem Valiullin, and Jörg Kärger. "Adsorption hysteresis phenomena in mesopores." Diffusion fundamentals 6 (2007) 67, S. 1-2, 2007. https://ul.qucosa.de/id/qucosa%3A14247.
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Fuad, Mohammad Naser Mohammad. "On the consistency of hysteresis models." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/353622.
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Hysteresis is a nonlinear behavior encountered in a wide variety of processes including biology, optics, electronics, ferroelectricity, magnetism, mechanics, structures, among other areas. One of the main features of hysteresis processes is the property of consistency formalized in [52]. The class of operators that are considered in [52] consists of the causal ones, with the additional condition that a constant input leads to a constant output. For this class of systems, consistency has been defined formally. This property is useful in system modeling and identification as it limits the search for the system's parameters to those regions where consistency holds.
The thesis applies the concepts introduced in [52] to some hysteresis models, namely LuGre model and Duhem model. The aim of the thesis is to derive necessary conditions and sufficient one for consistency (or/and strong consistency) to hold.
For the LuGre model, the consistency and the strong consistency are studied under minimal conditions in Chapter 2. As a by-product of this study, explicit expressions are derived for the hysteresis. Such expression may be useful for identification purposes as shown in [53].
A classification of the possible Duhem models in terms of their consistency is carried out in Chapter 3. This study shows that a parameter’s should be one for the Duhem model to be compatible with a hysteresis behavior.La histéresis es un fenómeno nolineal encontrado en varios procesos como biología, óptica, electrónica, ferroelectricidad, magnetismo, mecánica, estructuras, así como en otras áreas. Una de las características de los sistemas con histéresis es la propiedad de consistencia formalizada en [52]. La clase de operadores considerados en [52] consiste en aquellos que son causales, con la condición adicional que a una entrada constante corresponda una salida constante. Para esta clase d sistemas, la consitencia ha sido definida formalmente. Esta propiedad es útil en modelado e identificación dado que limita la búsqueda de parámetros a aquellas regiones donde la consistencia es válida. * Esta tesis aplica los conceptos introducidos en [52] a algunos modelos de histéresis, más precisamente al modelo de LuGre y al modelo de Duhem. El objetivo de esta tesis es encontrar condiciones necesarias y condiciones suficientes para que se satisfaga la consistencia (o/y la consitencia fuerte). * Para el modelo de LuGre, la consistencia "fuerte" se estudia en el capítulo 2 bajo condiciones mínimas. Como resultado de este estudio, se hallan fórmulas explícitas del lazo de histéresis. Tales fórmulas podrían ser de utilidad para tareas de identificación como se demuestra en [53]. * El capítulo 3 de la tesis presenta una clasificación de los modelos de Duhem posibles en términos de su consistencia. Este estudio muestra que hay un parámetro que tiene que valer uno para que el modelo sea compatible con un comportamiento histerético
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Funk, Max. "Hysteresis der Feuchtespeicherung in porösen Materialien." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-88943.
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In dieser Arbeit wird eine einheitliche physikalische Beschreibung des Feuchtespeicherverhaltens poröser Materialien gegeben, und ein anwendungsorientiertes Modell daraus abgeleitet. Insbesondere wird die Hysteresis der Feuchtespeicherung berücksichtigt. Die thermodynamischen Grundlagen der Feuchtespeicherung werden vollständig abgeleitet. Die Energie des kondensierten Wassers wird durch die Energie der freien Flüssigphase zuzüglich einer Porenwechselwirkungsenergie dargestellt. Um das Kondensationsverhalten zu beschreiben, wird ein thermodynamisches Kondensationspotential eingeführt; dabei werden ein Ungleichgewicht zwischen Kondensatphase und Wasserdampf sowie mehrere unabhängige Wassergehalte im Porensystem zur Darstellung der Hysteresis berücksichtigt. Für verschiedene in der Literatur beschriebene Sorptionsprozesse wird mit einheitlichen Zustandsgrössen das Kondensationspotential berechnet. Die Hysteresis wird als verzögerte Bewegung des Systemzustandes in der Berg- und Tallandschaft des Kondensationspotentials interpretiert. Es wurden an 11 Materialien Sorptionsmessungen im hygroskopischen Luftfeuchtebereich (0-92% RH) durchgeführt: Eine Adsorptionskurve und mehrere Desorptionskurven, sowie eine Langzeitmessung der Feuchteaufnahme bei 92% RH. Aus dem Adsorptions-Desorptionsverhältnis entnimmt man, dass der Hysteresis-Effekt typischerweise etwa 20% ausmacht. Mit den Messungen werden für alle Materialien das Modell der unabhängigen Domänen, das hysteretische thermodynamische Kondensationspotential und das Sorptionskurvensystem parametrisiert. Die Feuchteaufnahme bei dem Langzeitexperiment lässt sich durch eine bimodale Exponentialfunktion beschreiben. Die Kurven von hygroskopischer Adsorption und Desorption werden durch analytische Funktionen angenähert. Die Steigungen der Zwischenkurven werden aus den Steigungen der Hauptkurven berechnet. In gleicher Weise wird auch der überhygroskopische Bereich dargestellt, unter Zuhilfenahme externer Messdaten. Schliesslich ergeben sich zwei getrennt parametrisierte, aneinander angrenzende Sorptionsschleifen für den hygroskopischen und den überhygroskopischen Bereich. Alle Parameter werden so angepasst, dass eine grösstmögliche Übereinstimmung mit dem Domänenmodell erzielt wirdThis work gives a unified physical description of moisture storage in very different porous materials and derives an application-oriented model, especially the hysteresis of moisture storage has been investigated extensively. A full derivation of the thermodynamics of moisture sorption is given. The energy of condensed water is described by the energy of the free liquid plus a pore interaction energy. To describe the condensation behaviour, a thermodynamic condensation potential is introduced. It takes into account a non-equilibrium between condensed water and water vapour as well as several independent moisture contents in the liquid phase to describe the hysteresis. For many different sorption processes described in literature the condensation potential is derived, using always the same state variables. Hysteresis is interpreted as a delayed movement of the system in the hill-and-valley-landscape of the condensation potential. Sorption measurements have been performed for 11 different materials in the hygroscopic region (0-92% RH). One adsorption curve and several desorption curves and also the time dependent moisture sorption at 92% RH in a long-time experiment have been measured. From the adsorption-desorption ratio it can be concluded that the influence of hygroscopic hysteresis is typically about 20%. From the measurement results, for all materials the model of independent domains, the hysteretic condensation potential and the sorption curve system are parameterised. The moisture uptake of the long-time experiment can be described by a bimodal exponential function. The curves of hygroscopic adsorption and desorption are approximated by analytical functions. The slopes of the intermediate curves are calculated from the slopes of the main curves. In the same way the overhygroscopic region is approximated, using external measurement results. Finally a model is presented with two neighbouring sorption loops, one for the hygroscopic, one for the overhygroscopic region. All parameters are fitted to the predictions of the domain model
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Park, Jinha. "Collective Motion in 3D and Hysteresis." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-156424.
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Many animal groups in nature exhibit collective motion, such as bird flocks and fish schools. The group's internal motion is complex and dynamic, but the group moves cohesively in the same direction. The mechanism behind this collective motion has been studied with various ways. Mathematical modeling provides powerful tools to study this. In particular, individual based, self-propelled particle (SPP) models are among the most popular. Several SPP models have been developed using different local interaction rules between each individual and its neighbours. Among them, the local attraction model is one of the simplest using only attraction as social force. This model is particularly interesting because it can produce a figure of eight pattern in two dimensional space. By studying the local attraction model, I investigate the hysteresis properties in simulated collective motions. I also extend the model to three dimensional space by including additional global attraction forces. In the three dimensional local attraction model, I find an analog of the figure of eight found in the two dimensional model as well as other types of internal dynamics. This present study demonstrates the importance of attraction as a social force and the usefulness of the local attraction model in describing collective motion both in two and three dimensions.
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Tombolo, Guilherme Alexandre. "Two essays in unemployment rate hysteresis." reponame:Repositório Institucional da UFPR, 2017. http://hdl.handle.net/1884/48889.
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Orientador : Prof. Dr. João Basilio PereimaTese (doutorado) - Universidade Federal do Paraná, Setor de Ciencias Sociais Aplicadas, Programa de Pós-Graduação em Desenvolvimento Ecônomico. Defesa : 24/04/2017
Inclui referências : f.75-80
Resumo: O objetivo desta tese e analisar os efeitos da possível presença de histerese sobre a taxa de desemprego no Brasil. Vamos perseguir este objetivo através de dois ensaios ou artigos. No primeiro ensaio ou artigo "Dynamic Effects of Hysteresis in Brazilian Unemployment", testaremos a hipótese da presença de histerese total na taxa de desemprego brasileira por meio de um modelo de cointegra.ao entre salário real médio, produto real per capita e taxa de desemprego proposta por Balmaseda et al. (2000). De acordo com a hipótese adequada dada pelo teste de cointegração [histerese parcial (fraca) ou histerese total (forte)], estimamos um modelo SVAR para identificar tr.s choques: produtividade, demanda e oferta de trabalho. Estimado o modelo, analisamos a dinâmica do salário real médio, da produto real per capita e da taxa de desemprego e da variância dos erros de previsão. No segundo ensaio ou artigo, "Hysteresis in a New Keynesian DSGE", expandimos o modelo de desemprego de Gal. (2011a,b) para considerar a hipótese de histerese na taxa de desemprego. Com histerese total, os vários choques que afetam a economia tem um efeito permanente sobre o emprego e a taxa de desemprego.Em uma economia deste tipo a taxa de desemprego não tende a uma certa media ou a uma "taxa natural" de desemprego no longo prazo. Neste artigo inserimos histerese no modelo Novo-Keynesiano padrão e estimamos dois DSGEs bayesianos, um com histerese e outro sem histerese, e comparamos seus comportamentos em relação as funções de resposta ao impulso e decomposição da variância do erro de previsão.
Abstract: The aim of this thesis is to analyze the effects of the possible hysteresis presence on the Brazilian unemployment rate. We will pursue this objective through two essays or papers. In the first essay or paper, "Dynamic Effects of Hysteresis in Brazilian Unemployment", we will test the hypothesis of total hysteresis presence in the Brazilian unemployment rate through a cointegration model between real wage, real output per capita and unemployment rate proposed by Balmaseda et al. (2000). According to the adequate hypothesis given by the cointegration test [partial (weak) hysteresis or total (strong) hysteresis ], we estimated to SVAR model to identify three shocks: productivity, demand and labor-supply. With the SVAR model identified, we analyze the dynamics of real wage, real output and unemployment rate and the forecast errors variance (FEV). The sample we have covers the 1982Q3-2015Q4 period. In addition to estimating the model for the full period, we divide the sample into three parts to deal with the transformations suffered by the Brazilian economy in such period. The splits are: ''before Real Plan" (1982Q3-1994Q2), ' after Real Plan" (1994Q3-2015Q4) and ' Inflation Targeting" regime (1999Q1-2015Q4). In the second essay or paper, "Hysteresis in a New Keynesian DSGE", we expand the Gall (2011a,b) unemployment model to consider the hysteresis in unemployment rate hypothesis. With full hysteresis, the various shocks affecting the economy have a permanent effect on employment and unemployment rate. In an economy of this type the unemployment rate do not tend to a certain mean or to a "natural rate" of unemployment in the long-run. In this paper we insert hysteresis in the standard New Keynesian Model and estimate two Bayesian DSGEs, one with hysteresis and other without hysteresis, and compare their
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Phelps, Brian F. "An inclusive model of ferromagnetic hysteresis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0006/NQ42968.pdf.
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Hovorka, Ondrej Friedman Gary. "Hysteresis behavior patterns in complex systems /." Philadelphia, Pa. : Drexel University, 2007. http://hdl.handle.net/1860/1791.
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Ron, Eyal [Verfasser]. "Hysteresis-Delay Differential Equations / Eyal Ron." Berlin : Freie Universität Berlin, 2016. http://d-nb.info/1121588026/34.
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Moore, Thomas Arthur. "Dynamic hysteresis in thin magnetic films." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.620716.
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Scheck, Christopher G. "Thermal Hysteresis loss in gas springs." Ohio University / OhioLINK, 1988. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1182870415.
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Adedoyin, Ayodeji Adeoye. "Analysis of aftereffect phenomena and noise spectral properties of magnetic hysteretic systems using phenomenological models of hysteresis." Tallahassee, Florida : Florida State University, 2009. http://etd.lib.fsu.edu/theses/available/etd-09212009-165524/.
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Thesis (Ph. D.)--Florida State University, 2009.Advisor: Petru Andrei, Florida State University, College of Engineering, Dept. of Electrical and Computer Engineering. Title and description from dissertation home page (viewed on May 6, 2010). Document formatted into pages; contains xxi, 120 pages. Includes bibliographical references.
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Bittle, Bradford P. "Hysteresis control of parallel-connected hybrid inverters." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Sep%5FBittle.pdf.
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Lahey, Timothy. "Modelling Hysteresis in the Bending of Fabrics." Thesis, University of Waterloo, 2002. http://hdl.handle.net/10012/941.
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This thesis presents a model of fabric bending hysteresis. The hysteresis model is designed to reproduce the fabric bending measurements taken by the Kawabata Evaluation System (KES) and the model parameters can be derived directly from these property measurements. The advantage to using this technique is that it provides the ability to simulate a continuum of property curves. Results of the model and its components are compared and constrasted with experimental results for fabrics composed of different weaves and yarn types. An attempt to incorporate the bending model as part of a fabric drape simulation is also made.
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Cruz-Hernández, Juan Manuel. "Reduction of hysteresis : a phase control approach." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0028/NQ50135.pdf.
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Decent, Stephen Paul. "Hysteresis and mode competition in Faraday waves." Thesis, University of St Andrews, 1996. http://hdl.handle.net/10023/14054.
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Faraday waves arise on the surface of a liquid in a container that is undergoing vertical periodic oscillations. We investigate two-dimensional Faraday waves in a long rectangular container, both theoretically and experimentally. Hysteresis occurs when both finite amplitude solutions and the flat surface solution are available. We derive a nonlinear model of a standing wave, extending the Lagrangian method of Miles (1976). The model is used to investigate hysteresis. It is found necessary to retain cubic damping, cubic forcing and the fifth-order conservative term in order to achieve agreement with experiments. The fifth-order conservative term was omitted from all previous studies of Faraday waves. Stable limit cycles are found to arise from this single-mode equation. We examine the structure of this new solution in detail, both analytically and numerically. We describe local bifurcations using a multiple time scales analysis and global bifurcations using Melnikov's method. The coefficients of linear and cubic damping are derived for a standing wave in a rectangular container by considering energy dissipation in the main body of the fluid (due to potential flow and streaming) and in boundary layers at the sidewalls and at the surface. Surface contamination, due to the presence of a thin viscoelastic surface film, creates a boundary layer at the surface which causes enhanced dissipation comparable to, or greater than, that caused by the boundary layers at the walls of the container. Three-mode interaction equations are used to model intermittency and complex modulations which are found to arise from a sideband instability mechanism similar to that of Eckhaus (1963) and Benjamin & Feir (1967). The role of cubic and fifth-order nonlinear terms on this instability mechanism is examined. Theoretical results are found to compare quite favourably with experimental data.
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Truong, Cang Kim 1979. "Analysis of hunting in Synchronous Hysteresis Motor." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/18011.
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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.Includes bibliographical references (leaf 86).
The Synchronous Hysteresis Motor has an inherent instability when it is used to drive a gyroscope wheel. The motor ideally should spin at a constant angular velocity, but it instead sporadically oscillates about synchronous speed. This phenomenon is known as 'hunting'. This problem produces current ripples at the motor's electrical terminals and induces noise on the sensors that monitor gyro activity. This thesis examines the cause of hunting by deriving the motor's torque characteristics from first principles. It also derives a scheme for suppressing hunting by monitoring the motor's current as an indicator of drag angle and using it to modulate the motor's drive frequency. Explanation of the circuit that successfully implements this scheme is included and lab results are shown to verify the working theory.
by Cang Kim Truong.
M.Eng.
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McCausland, W. David. "Exchange rate hysteresis from trade account interaction." Thesis, Keele University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294199.
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Alsari, Saad. "The Influence of a Surface on Hysteresis Loops for Single-Domain Ferromagnetic Nanoparticles." Wright State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=wright1525715329704504.
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Fillmore, Paul F. "Design, construction, and testing of a hysteresis controlled inverter for paralleling." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03sep%5FFillmore.pdf.
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Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, September 2003.Thesis advisor(s): Robert Ashton, Xiaoping Yun. Includes bibliographical references (p. 69-70). Also available online.
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Almora, Rodríguez Osbel. "Hysteresis and Capacitive Features of Perovskite Solar Cells." Doctoral thesis, Universitat Jaume I, 2020. http://hdl.handle.net/10803/669272.
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In the present work, anomalous distortions occurring in the current-voltage characteristic of
perovskite solar cells (PSCs), usually called J-V curve hysteresis, are studied by several
methods. This includes dynamic direct current (DC) mode J-V experiments and impedance
spectroscopy (IS) analyses in dark and under illumination. The J-V curves of PSCs were
measured under different conditions showing capacitive hysteretic currents. This is related with
low frequency excess capacitance in the IS spectra. These two features are correlated with the
response of mobile ions in space charge regions close to the interfaces. The large values of
capacitance under illumination in the sub-Hz regime were explained in terms of mobile ions
space charges and chemical capacitances assuming a proportionality between the number of
ionized/activated mobile ions and the concentration of charge carriers and photon fluence.En el presente trabajo se estudian por varios métodos las distorsiones anómalas en la característica de corriente-voltaje de las celdas solares de perovskita (PSC), típicamente llamada histéresis de J-V. Esto incluye experimentos dinámicos de J-V en modo de corriente continua (DC) y análisis de espectroscopía de impedancia (IS) en oscuridad y bajo iluminación. Las curvas J-V en oscuridad de las PSCs exhiben corrientes capacitivas, relacionadas con un exceso de capacitancia de baja frecuencia en los espectros de IS. Estas dos características están correlacionadas con la respuesta de iones móviles en regiones espaciales de carga hacia las interfaces. Los grandes valores de capacitancia bajo iluminación a frecuencias por debajo de las unidades de Hz se explicaron en términos de regiones de cargas espaciales de iones móviles y capacitancias químicas, suponiendo una proporcionalidad entre el número de iones móviles ionizados/activados y la concentración de portadores de carga y flujo de fotones.
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GUIZZO, TIAGO. "ELASTIC-PLASTIC HYSTERESIS LOOPS INDUCED BY COMPLEX LOADING." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2000. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=19521@1.
Full textAbstract:
COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIORNeste trabalho é apresentada uma revisão completa do método em tradicional e corrigido implementado na linguagem Vida. Trata-se a parte experimental com esmero visando obter resultados experimentais de qualidade acima da qualidade obtida em ensaios convencionais. Com este intuito mediu-se a influência do momento fletor, ou seja, quão diferente de P/A (Força / Área) é a tensão atuante no corpo de prova. Para tal utilizou-se um corpo de prova especialmente projetado para esta função, instrumentado com oito strain-gages. O Clip-gage, instrumento determinante da qualidade dos resultados, foi calibrado com um dispositivo de calibração especialmente desenvolvido para esta tarefa, tendo como principal característica sua elevada rigidez. Estudou-se o efeito de concentração de tensões na redução de diâmetro do corpo de prova, indipensável para garantir que este rompa na área reduzida. Este efeito foi modelado considerando plasticididade atuante apenas na raiz do entalhe e também considerando a plasticidade total do corpo de prova. Por último fez-se a modelagem da flambagem elastoplástica, segundo o modelo de Engesser, dos laços de histerese de amplitude constante. Este é o fator determinante da menor vida possível de ser obtida antes que o corpo de prova flambe plasticamente. No processo de obtenção de resultados experimentais parte-se inicialmente de testes de tração monotônica, de onde são obtidas as propriedades mecânicas indispensáveis para as estimativas relativas ao método EN. Foram realizados, testes EN, com laços de histerese de amplitude de deformação constante, em várias amplitudes de deformação. A partir destes discute-se o processo de obtenção de n e K via estimativas pelo ajuste dos bicos dos laços de histerese, pelo teste de incremento de deformação e pelo ajuste das formas dos laços de histeresse. A otimização do ajuste de n e K é fundamental, pois são estas as constante que descrevem a trajetória gerada à partir de qualquer história de carregamento, seja esta história de amplitude constante ou complexa (de amplitude variável). A descrição de laços de histeresse complexos (de amplitude variável) é o objetivo maior desta tese. Foram realizados experimentos partindo-se de carregamentos complexos controlados em deformação e em tensão, nos quais foi comprovada a necessidade de ser aplicar o método em corrigido e as constantes n e K otimizadas para uma descrição precisa das trajetórias experimentalmente obtidas. Analisa-se então o efeito do transiente durante os teste em de amplitude de deformação constante, onde constata-se que há uma assimetria acentuada nos primeiros ciclos do carregamento, porém quando estabilizado o nível de tensão é simétrico. Isto acontece em aproximadamente 20 por cento do número de ciclos totall do ensaio. Tenta-se modelar o transiente de forma simples com um fator transiente (FT), porém constata-se a necessidade de modelar o transiente pela variação de n e K a cada ciclo.
The main objective of this work was to experimentally study the cyclic elastoplastic behavior under complex leading of two structural steels, named API S-135 and AISI 4340. In order to minimize experimental errors, some problems were studied with unusual care. The influence of the residual bending moment on the EN tests was measured, using a special specimen instrumented with eight strain-gagers. The performance of the clip-gage was checked with a calibration in the test specimen was quantified. And the inelastic buckling of the tst specimen under hysteresis loops of constant amplitude was modeled, considering the effects of cyclic softening. The experimental results include EN tests under constant amplitude of deformation, to obtain the Coffin-Manson and the Ramberg-Osgood curves of the two steels. The softening transient was studied, and the best way to measure the cyclic strain hardening constant K and exponent N in order to optimize the description of the stable hysteresis loops was discussed. This optimization is fundamental for the correct modeling of the complex loops done in the ViDa 99 program. Finally, predicted and experimentally measured loops were successfully compared.
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Sulkin, Daniel Paul. "Hysteresis in the Current Recession: Evidence and Consequences." Thesis, Boston College, 2012. http://hdl.handle.net/2345/2643.
Full textAbstract:
Thesis advisor: Robert MurphyHysteresis, in an economic context, is the idea that periods when the unemployment rate is greater than the natural rate have the effect of raising the underlying natural rate of unemployment (or, non-accelerating inflation rate of unemployment, NAIRU) and moving it to a new higher equilibrium state. The existence of hysteresis is still a matter of dispute in modern economics.This study examines the economic and employment situation from 1980 to the present and in particular since the beginning of the most recent recession in December 2007 and demonstrates that there exists evidence of hysteresis. It then aims to predict the economic consequences for the future and offers possible solutions to the problem.Given the scale of unemployment in the present economy and the importance of crafting an appropriate policy response, an examination of unemployment through the perspective of the hysteresis theory is a valuable approach that deserves further exploration
Thesis (BS) — Boston College, 2012
Submitted to: Boston College. Carroll School of Management
Discipline: Carroll School of Management Honors Program
Discipline: Economics
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Joseph, Daniel Scott. "Parameter Identification for the Preisach Model of Hysteresis." Diss., Virginia Tech, 2001. http://hdl.handle.net/10919/27295.
Full textAbstract:
Hysteresis, defined as a rate independent memory
effect, is a phenomenon that occurs in many
physical systems. The effect is sometimes
desired, sometimes a nuisance, sometimes cata-
strophic, but in every case we must understand
hysteresis if we are to better understand the
system itself.
This work introduces a method of parameter
identification for the Preisach model of hyster-
esis. This identification method is explored
in both the setting of non-singular measures
and the setting of singular measures.Ph. D.
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Foliente, Greg C. "Hysteresis modeling of wood joints and structural systems." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-09292009-020259/.
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Celik, Yeliz. "Experimental Investigation of the Interactions of Hyperactive Antifreeze Proteins with Ice Crystals." Ohio University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1268166115.
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Can, Ozge. "NOVEL ANTIFREEZE PROTEIN CONSTRUCTS FOR IMPROVED ACTIVITY." Cleveland State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=csu1229703788.
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Chen, Zheng. "Torsional fatigue of wood." Thesis, London South Bank University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271780.
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Shi, Jingbo. "Water sorption hysteresis and wood cell wall nanopore structure." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/61782.
Full textAbstract:
The origin of sorption hysteresis in the wood-water system is still under debate. In this study, cell walls are considered as micro-mesoporous materials and capillary condensation in the entire hygroscopic region is proposed as an alternative sorption mechanism.
Initially, the pore connectivity was investigated by observing five experimentally generated hysteresis patterns at 25 and 40oC. Consistent patterns were found for the species-temperature combinations. Further, the satisfactory congruency and wiping-out properties indicate the dominance of independent cell wall pores. After this experimental phase, the geometric interpretations derived from the Preisach model, the mathematical form of the independent domain model, was used tο explain the observed hysteresis patterns. Additionally, a modification to the aforementioned model was suggested that involves a numerical implementation, which avoids the use of unknown parameters. The low prediction errors and well-maintained wiping-out property support the suitability of our approach.
In the next phase, grand canonical Monte Carlo (GCMC) technique was applied in a simplified wood-water system to simulate sorption isotherms and hysteresis at 25 and 40°C. In the simulation system, wood is represented by a cell wall model that is composed of solid substances and evenly distributed independent cylindrical nanopores with sizes in the range of 0.6 – 2.2nm. Two types of pore-wall compositions regarding polysaccharides and lignin have been considered. The hydroxyl groups are modeled as negative energy pits attached to walls whereas water is represented by the SPC/E model. Results demonstrated that hysteresis can be well explained by the existence of metastable states associated with capillary condensation and evaporation of water in cell wall pores. The alternative sorption mechanism driven by capillary condensation is also strongly supported by the simulation.
In the last phase, the cell wall pore size distributions in the hygroscopic range were explored for the three species from a “trial and error” calculation approach. This approach was indirectly examined by comparing derived volumetric strain of cell walls and the density of adsorbed water in the hygroscopic range with literature data. The qualitative agreement indicates the soundness of assumptions made on the cell wall swelling process and proposed calculation procedures.Forestry, Faculty of
Wood Science, Department of
Graduate
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Ouyang, Ming. "A study of hysteresis in the open Canadian economy." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq23649.pdf.
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Mitchler, Patricia Darlene. "Characterization of hysteresis in magnetic systems, a Preisach approach." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ53071.pdf.
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Loureiro, Andre Oliveira Ferreira. "Essays on crime, hysteresis, poverty and conditional cash transfers." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/7913.
Full textAbstract:
This thesis encompasses three essays around criminal behaviour with the first one analysing the impact of programmes aimed at poverty reduction, the second one developing a theoretical model of hysteresis in crime, and the third one empirically investigating the hysteresis hypothesis in crime rates. In the first chapter I investigate the impact of conditional cash transfers (CCT) on crime rates by analysing the Brazilian Bolsa Familia, the largest CCT programme in the world, in a panel data between 2001 and 2008. The related existing economic literature analysing general welfare programmes usually ignores the crucial endogeneity involved in the relationship between crime rates and social welfare policies through poverty, since poorer regions are focused in the distribution of resources. I use the existing temporal heterogeneity in the implementation of the programme across the states to identify the causal impact of CCT programmes on poverty and criminality. The guidelines of the Brazilian programme established that the amount of resources available for each state should be based on the poverty levels in the 2000 Census. However, due to reasons unrelated to poverty levels and crime rates, some states were able to implement the programme to a greater extent more quickly than others. States that reached the level of cash transfer expenditures proposed by the guidelines of the programme more promptly had a more significant reduction in poverty rates. Similar but less robust results are found for crime rates as robbery, theft and kidnapping, while no significant effects were found for homicide and murder, indicating a weak or non-existent relationship between conditional cash transfers and crime. I also develop, to my knowledge, the first theoretical model to explicitly account for hysteresis - a situation where positive exogenous variations in the relevant economic variables have a different effect from negative variations - in both criminal behaviour and crime rates in order to fill the gap between the theoretical predictions and the empirical evidence about the efficiency of policies in reducing crime rates. The majority of the theoretical analyses predict a sharp decrease in crime rates when there are significant improvements in the economic conditions or an increase in the probability of punishment. However, the existing empirical studies have found lower than expected effects on crime rates from variations in variables related to those factors. One important consequence of hysteresis is that the effect on an outcome variable from positive exogenous variations in the determining variables has a different magnitude from negative variations. For example, if hysteresis is present in the criminal behaviour and part of the police force in a city are dismissed in a given year, resulting in an escalation in crime, a reversal of the policy in the following year by readmitting all sacked police officers in an attempt to restore the original crime levels will result in lower crime rates, but higher than the original ones, yielding an asymmetric relationship between police and crime. Hysteresis is considered in a simple framework to model illicit behaviour. At the individual level, if criminal activity is associated with intrinsic sunk costs and learning, then the cost of leaving a criminal career is higher than entering it. At the aggregate level with homogeneous agents, this is translated into a hysteresis effect that will only occur if a specific threshold is surpassed. With heterogeneous agents, this phenomenon is reinforced generating a hysteresis effect that exists for all possible values of the variable affecting the crime decision. There are multiple equilibria at both levels. In the last chapter I empirically investigate the existence of hysteresis in crime rates. To my knowledge, this is the first empirical study to consider the existence of asymmetric effects on crime from variations in the probability of punishment and in the opportunity cost of crime. More specifically, I investigate whether positive variations on variables associated to those factors, respectively police officers and average level of income, are statistically different from negative variations. Using US crime data at the state level between 1977 and 2010, I find that police force size and real average income of unskilled workers have asymmetric effects on most types of crimes. The absolute value of the average impact of positive variations in those variables on property and violent crime rates are statistically smaller than the absolute value of the average effect of negative variations. These effects are robust under several specifications. A closer inspection of the data reveals a relatively monotonic negative relationship between wages and property crime rates, as well as negative variations in police and most crime rates. However, the relationships between positive variations in law enforcement size and most crime rates are non-linear. The magnitude of the observed asymmetries supports the hypothesis of hysteresis in crime, and suggests that no theoretical or empirical analysis would be complete without careful consideration of that important feature in the relationships between crime, police and legal income. These results corroborate the argument that policy makers should be more inclined to set pre-emptive policies rather than mitigating measures.
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Liu, Yingying. "Multifrequency Averaging of Hysteresis-Current-Controlled DC-DC Converters." UKnowledge, 2015. http://uknowledge.uky.edu/ece_etds/67.
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Multifrequency averaging is one of the widely used modeling and simulation techniques today for the analysis and design of power electronic systems. This technique is capable of providing the average behavior as well as the ripple behavior of power electronic systems. Hysteresis current control has fast response and internal current stability through controlling switches to maintain the current within a given hysteresis band of a given current command. However the state space variables in a hysteresis controlled system cannot be directly approached by multifrequency averaging method because of time varing switching frequency. In this thesis, a method of applying multifrequency averaging to hysteresis current controlled dc-dc converters is proposed. A dc-dc converter model with the application of this method has been successfully developed and validated both in simulation and experiment.
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Bayless, Jacob D. (Jacob Daniel). "A high-speed hysteresis motor spindle for machining applications." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/87955.
Full textAbstract:
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2014.Cataloged from PDF version of thesis. "February 2014."
Includes bibliographical references (pages 43).
An analysis of suitable drive technologies for use in a new high-speed machining spindle was performed to determine critical research areas. The focus is on a hysteresis motor topology using a solid, inherently-balanced D2 steel shaft. An analytical model of the motor is devised in order to make performance predictions and optimization, and an experimental apparatus is constructed in order to verify the predictions of the model and investigate speed limits. The model's limitations due to a still-incomplete understanding of the vector hysteresis properties of magnetic steels are noted, and a proposal for an experiment to resolve this limitation is presented. The model predicts that the motor performance is optimized for a very thin ring of hysteretic steel. The experimental apparatus used a solid rotor. It was run up to a speed of 11,000 RPM and torque-speed curves with various drive parameters are measured.
by Jacob D. Bayless.
S.M.
45
Wang, Albert Chin-min. "Evaluation of gas spring hysteresis losses in Stirling cryocoolers." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/17251.
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Atmaca, Eralp 1976. "Hysteresis and memory effects in nanocrystal embedded MOS capacitors." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/58686.
Full textAbstract:
Thesis (M. Eng. and S.B.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.Issued separately by degree.
Includes bibliographical references (p. 103-106).
Nanocrystal Memory is a promising new memory type which utilizes silicon nanocrystals and quantum mechanical direct tunneling current for charge storage. This thesis presents the work done to characterize the memory effect in nanocrystal embedded metal-oxide-semiconductor (NC-MOS) capacitors, the fundamental components of the nanocrystal memory. Various properties of the NC-MOS capacitors including gate stack composition, oxide charge storage and interface traps are studied by making high frequency and quasi-static capacitance voltage and current voltage measurements. High frequency and quasi-static capacitance characteristics reveal hysteresis which is evidence for the memory effect. A hysteresis of 2 V is demonstrated which is large enough to enable the use of nanocrystal embedded devices as memory devices. Measurement results suggest that the tunneling in the accumulation bias regime is mostly electron tunneling from the channel into the nanocrystals, and the tunneling in the inversion bias regime is hole tunneling from the channel into the nanocrystals. Charge is stored in the nanocrystals either in the discrete quantum dot states or in the interface traps that surround the nanocrystals. The oxide thickness is varied to control the tunneling rate and the retention time. A thinner tunnel oxide is necessary for achieving a higher tunneling rate which provides a faster write/erase. However, when the barrier thickness is lower, the charge confined in the nanocrystals can leak back into the channel more easily. Measurement conditions such as bias schemes, hold times, sweep rates and illumination can significantly influence the memory effect. It is demonstrated that the memory effect is enhanced by longer hold times, wider sweep regimes and light.
by Eralp Atmaca.
M.Eng.and S.B.
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Huang, Huan-Chi, and 黃煥祺. "Piezo stage hysteresis modeling." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/59179265746217294902.
Full textAbstract:
碩士國立交通大學
電機學院碩士在職專班電機與控制組
95
This paper presents an improved Maxwell Slip Model, and also presents a procedure for real time on-line identification of hysteresis functions, which are encountered in Piezoelectric actuators. This paper shows that the on-line identification of hysteresis functions boils down to a well understood recursive least squares estimation problem if the hysteresis function is modeled as a weighted superposition of extended linear stop operators with fixed parameters. Experiment results show that this technique has been successfully applied to model the hysteresis behaviour of a piezoelectric actuator.
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WU, YOU-MIN, and 吳友民. "Performance comparison of VSCI with hysteresis, double-hysteresis and ramp comparison control schemes." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/58562365654959935855.
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Dutta, Sushant M. "Dynamic hysteresis modeling and applications." Thesis, 2004. http://hdl.handle.net/1911/17670.
Full textAbstract:
Hysteresis is a phenomenon which is widely observed in a variety of physical systems. It introduces a nonlinear and multivalued behavior in systems, making their modeling and control problematic. This thesis underlines the significance of dynamic hysteresis modeling from the perspectives of analysis and control. Toward that end, a widely accepted definition of hysteresis is adopted and some important properties of hysteresis are presented. Five general hysteresis models are discussed, along with some damping and friction models. Their properties are compared and contrasted. The Duhem model is shown to be a versatile dynamic hysteresis model, and it is adapted to two distinct physical systems. First, the evolution of dynamic hysteresis modeling of harmonic drive is studied, and a new dynamic model, based on Duhem model, is developed. It is more accurate than previous models and is used to prove, via the method of describing functions, that PID regulation control of harmonic drive can cause a limit cycle due to hysteresis. Second, a dynamic hysteresis model, based on Duhem model, is proposed for a shape memory alloy actuator, which yields a complete dynamic model of the actuator, linking its temperature, strain and electrical resistance together. Therefore, this thesis provides a foundation for dynamic hysteresis modeling in engineering systems and brings out the salient features of dynamic hysteresis modeling from the perspectives of analysis and control.
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Wei, Jyh-Da, and 魏志達. "System Modeling of Hysteresis Phenomena." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/33911587994466654026.
Full textAbstract:
博士國立交通大學
資訊科學系
90
Hysteresis is a unique type of dynamics. The output of a hysteresis system is independent of input speed. This property is known as rate-independence, the defining characteristic of hysteresis behavior. Hysteresis phenomena are frequently observed in physical research domains, including magnetism, plasticity, electronics, thermodynamics, materials, and mechanics. However, the unique property of rate independence makes modeling hysteresis behaviors extremely difficult. Existing hysteresis models can be categorized into local and nonlocal memory models. Local memory models consider the current I/O values locally: a maximum of two curves pass through each working point in the I/O diagram. For an increasing input, the curve rises. If the input decreases, then a falling curve is traced. Meanwhile, nonlocal memory models globally refer to past extreme inputs while transducing the new input value to its corresponding output. Both of these models have disadvantages. Local memory models cannot approximate actual systems as closely as do nonlocal memory models, whereas nonlocal memory models require amount of memory to record past extreme values and are computationally difficult. Before developing a newly efficient hysteresis model, we must examine whether conventional memory-related models, such as finite impulse response (FIR) models, autoregressive external input (ARX) models, time delay neural networks (TDNN), and recurrent neural networks (RNN) can simulate hysteresis behavior. This study defines hysteretic memory (rate-independent memory) and then conducts both of theoretical analysis and numerical simulations to examine that conventional system models are not hysteresis systems. Subsequently, this study presents a novel model of hysteresis phenomena. Combining three major blocks - the Gradient Investigator (GI), Extreme-value Template (ET), and Output Function (OF) - the proposed model approximates hysteresis behavior, conveniently by determining an active polynomial function once an extreme input value is reached. Notably, this model includes nonlocal memory in the ET block and is as computationally easy as local memory models of hysteresis. The proposed model is applied to model the relation between ground-water level and land subsidence. The connection between the economic leading and coincident indicators is also studied. Experimental results reveal that our model approximates the measured data more closely than conventional short-term memory models do. This fact implies that the systems of land subsidence and economic indicators are involved with rate independent memory. Based on the proposed model, this study also presents a novel means of recognizing voice signals. Assuming that the dynamic speed of speaking primarily complicates speech recognition, we adopt the parameters of our model as the fixed-length feature for recognition. Accordingly, reference words can be recognized in linear time. Experiments employ the voice signals of numbers, from zero to nine, spoken in Mandarin Chinese. The proposed method is verified to recognize voice signals efficiently. Restated, this study defines hysteretic memory (rate-independent memory) and examines that conventional system models are not hysteresis systems. Consequently, we develop an efficient hysteresis model and apply this model to explain the relation between ground-water level and land subsidence, as well as the connection between the economic leading and coincident indicators. Finally, the proposed model is also applied to voice signal recognition.