2014 The pulse-detection method for the observation of the transition to the normal state of superconducting superheated granules measures the percentage of the number of superheated granules as a function of their size for a given applied magnetic field. Two different extrapolations provide : 1) the density of nucleation centres of the normal state and 2) the percentage of superheated granules...

This paper tests two heuristic approaches by applying them to the magnetic hysteresis model parameter identification. Both Preisach and Jiles-Atherton hysteresis models have been used. The implemented investigated heuristics are genetic algorithm and simulated annealing. Both the heuristic algorithms efforts the knowledge of the B-H experimental points of the hysteresis loop to be modeled accor...

In some systems with hysteresis behavior like Shape Memory Alloy (SMA) actuators and Piezo actuators, we essentially need an accurate modeling of hysteresis either for controller design or performance evaluation. One of the most interesting Hysteresis non-linearity identification methods is Preisach model in which hysteresis is modeled by linear combination of elemental operators. Despite good ...

The present paper will describe an approach for the simultaneous real-time compensation of hysteresis, creep and force-dependence effects of a piezoelectric stack actuator by a feed-forward controller. The basis of the feed-forward controller is given by so-called complex creep and hysteresis operators, which when adequately implemented, lead to a precise model of the creep and hysteresis chara...

Although the preferred transition speed (PTS) reported by various researchers is relatively consistent, the amount of observed hysteresis (difference between the walk-run and the run-walk transition speed) varies considerably. Variations in reported hysteresis appear to be related to the protocol used to determine the transition speeds. This investigation compared the PTS, and the amount of hys...

The haemolymph of larvae of Tenebrio molitor contains a factor which produces a thermal hysteresis (a difference between the freezing and melting points) of approximately 0-75 °C. When larvae were acclimated to low temperatures or short photoperiod the thermal hysteresis increased more than twofold. Coincident with the increase in thermal hysteresis the supercooling points and lower lethal temp...

1 NAKAGAWA, s., and SAITO,T.: ‘An RC OTA hysteresis chaos generator’, IEEE Trans. Circuits Syst. I, 1996, CAS-43, (12), pp. 10 19-1 02 1 2 STORACE, M., PARODI, M., and ROBATTO, D.: ‘A hysteresis-based chaotic circuit: dynamics and applications’, Int. J. Circuit Theory Appl., 1999, 27, (6), pp. 527-542 ELWAKIL, A s . , and KENNEDY, M.P.: ‘Systematic realization of a class of hysteresis chaotic o...

In this paper, how structure-sensitive parameters derived from the hysteresis loop, like coercive field, remanent induction, and hysteresis losses, can be used to characterise recovery and recrystallization in cold rolled Ti-Nb stabilised interstitial free ultra low carbon steel is shown. The effect on hysteresis measurements of isothermal annealing treatments applied to industrially cold rolle...