نتایج جستجو برای: hysteretic controls

تعداد نتایج: 258007  

Journal: :Bio Systems 2010
Jill Gallaher Martin Bier Jan Siegenbeek van Heukelom

Hysteretic behavior is found experimentally in the transmembrane potential at low extracellular potassium in mouse lumbrical muscle cells. Adding isoprenaline to the external medium eliminates the bistable, hysteretic region. The system can be modeled mathematically and understood analytically with and without isoprenaline. Inward rectifying potassium channels appear to be essential for the bis...

2002
Vasilii Gusakov

In cuprates superconductors (as polycrystal and single crystal samples) unusual hysteretic temperature behavior of elastic properties is frequently observed. In this work from the uniform point of view detailed analysis this abnormal temperature behavior of elastic properties is given. It is shown that the hysteretic temperature dependencies of elastic properties of YBa2Cu3O7−δ crystal are stro...

1998
S. Finsterle T. O. Sonnenborg B. Faybishenko

A new, closed-form hysteretic model of the capillary pressure-saturation and relative permeability-saturation relationship has been implemented into ITOUGH2. The hysteretic capillary pressure function is based on the van Genuchten model, with a modified version of the dependent domain model of Mualem to describe the scanning curves. Hysteresis in the relative permeability relations is considere...

Journal: :Physical review letters 2010
Yi Zheng Guang-Xin Ni Chee-Tat Toh Chin-Yaw Tan Kui Yao Barbaros Ozyilmaz

Recent experiments on ferroelectric gating have introduced a novel functionality, i.e., nonvolatility, in graphene field-effect transistors. A comprehensive understanding in the nonlinear, hysteretic ferroelectric gating and an effective way to control it are still absent. In this Letter, we quantitatively characterize the hysteretic ferroelectric gating using the reference of an independent ba...

2011
VIERA BIOLKOVÁ DALIBOR BIOLEK ZDENĚK KOLKA

The paper deals with the analysis of flux-controlled memristor which is described by its unambiguous charge-flux constitutive relation. The memristor is excited by ideal sinusoidal voltage source in order to sense its typical i – v pinched hysteretic loop. Two equivalent schematics of the transformation of the exciting voltage into the current response are described. The first one is selected f...

2007
M. Bruneau

Hysteretic energy dissipation in conventional structural configurations can be undesirable if it is achieved by the damage of primary structural members. Ideally, this hysteretic energy dissipation should occur in structural elements that are “disposable” (i.e., structural fuses that can be replaced without disturbance to the main system, just like real fuses). Much work has been accomplished o...

Journal: :New Journal of Physics 2022

Abstract We present a proposal for realization of an electrical memory reminiscent memristor in connected Kagome artificial spin ice. show that current flowing through the system alters magnetic ensemble, which turns controls overall resistance thus leaving passage system. This introduces current-dependent effect dynamic resistive state. simulate spin-induced thermal phase-change mechanism, and...

2011
Michael Grinfeld Harbir Lamba

Following the approach of [22], we derive a system of FokkerPlanck equations to model a stock-market in which hysteretic agents can take long and short positions. We show numerically that the resulting mesoscopic model has rich behaviour, being hysteretic at the mesoscale and allowing bubbles and volatility clustering in particular.

Journal: :Sensors and actuators. A, Physical 2009
U-Xuan Tan Win Tun Latt Ferdinan Widjaja Cheng Yap Shee Cameron N Riviere Wei Tech Ang

With the increasing popularity of actuators involving smart materials like piezoelectric, control of such materials becomes important. The existence of the inherent hysteretic behavior hinders the tracking accuracy of the actuators. To make matters worse, the hysteretic behavior changes with rate. One of the suggested ways is to have a feedforward controller to linearize the relationship betwee...

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