Results 211 to 220 of about 152,116 (226)

Dynamic Preisach models of hysteresis

IEEE Transactions on Magnetics, 1988
Novel Preisach-type models of hysteresis are introduced. Their distinctive feature is their ability to describe dynamic properties of hysteresis nonlinearities. The identification problem of fitting dynamic Preisach models to experimental data is discussed. Some recommendations concerning numerical implementation of these models are given. >
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Dynamical double hysteresis in weakly ionized magnetoplasmas

Physical Review A, 1992
We investigated experimentally the dynamical hysteresis in a weakly ionized rf magnetoplasma system by varying the frequency of the triangular modulation of the amplitude of rf voltage. The modulation covered a region consisting of two cascaded hysteresis loops with four different states. The high-frequency modulations cause finite delays of the onsets
, Lin, , Jeng-Mei
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Dynamic Response of Nonlinear Oscillators With Hysteresis

Volume 6: 11th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, 2015
The nonlinear features of the steady-state periodic response of hysteretic oscillators are investigated. Frequency-response curves of base-excited single-degree-of-freedom (SDOF) systems possessing different hysteretic restoring forces are numerically obtained employing a continuation procedure based on the Jacobian of the Poincaré map.
Carboni, B., Lacarbonara, W.
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Qualitative modelling for dynamic magnetic hysteresis

2007 International Aegean Conference on Electrical Machines and Power Electronics, 2007
The studies of practical magnetic systems with hysteresis phenomenon are of great importance in electrical engineering. As an alternative to physical and empirical model, a qualitative model was constructed using adaptive fuzzy logic called adaptive network fuzzy inference system (ANFIS).
M. Mordjaoui, M. Chabane, B. Boudjema
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Dynamic hysteresis of a superparamagnetic nanoparticle

Physica B: Condensed Matter, 2004
Dynamic hysteresis in a nanoparticle is considered on the basis of the Brown's kinetic equation. Dependencies of the loop area on the frequency and amplitude of the magnetizing field and on temperature are presented and analyzed.
Yu.L. Raikher, V.I. Stepanov, R. Perzynski   +2 more
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Strong hysteresis versus zero-root dynamics

Economics Letters, 1994
Abstract This paper presents the properties of remanence and of dependence on history pertaining to strong hysteresis through a foreign trade model. These properties reveal that it is impossible to assimilate zero-root dynamics to hysteresis.
Amable, Bruno, Henry, Jérôme, Lordon, Frédéric, Topol, Richard   +3 more
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Dynamic programming for systems with hysteresis

Physica B: Condensed Matter, 2001
Abstract We introduce a novel type of dynamic programming equations for controlled differential equations with hysteresis on the control. The novelty of our approach is that we use Hamilton–Jacobi functions with one of the variables being set-valued, corresponding to the active set on the Preisach plane.
S.A. Belbas, I.D. Mayergoyz
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Systematic Hysteresis Analysis for Dynamic Comparators

Journal of Circuits, Systems and Computers, 2019
Comparator hysteresis is a memory phenomenon allowing outputs maintaining their past stable states until the input difference overcomes a given threshold voltage. In some applications, such as ADCs and memories, hysteresis is a deterministic error that should be minimized.
Leïla Khanfir, Jaouhar Mouïne
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Dynamic hysteresis loop measuring equipment

Electrical Engineering, 1952
WITHIN the past 2 or 3 years many scientists and engineers working on research and development projects in the magnetic amplifier field have come to realize that the dynamic hysteresis loop of a magnetic material plays an important role in determining the amplification and control characteristics of high-gain magnetic amplifiers. Figure 1 shows a block
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Capital asset price dynamics: heterogeneity and hysteresis

Economics Letters, 1991
Abstract In this study we investigate the price determination in asset markets with heterogeneous risk-neutral investors that face costs of portfolio adjustment. We develop a price function mapping stochastic dividends into prices. Asset prices exhibit ‘hysteresis’ in the sense that large dividend changes cause a level shift in the relationship ...
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