نتایج جستجو برای: voltage fluctuations

تعداد نتایج: 179075  

Journal: :Physical review letters 1996
Millonas Chialvo

We show that voltage-sensitive macromolecules can, by the application of the right type of external voltage fluctuations, be focused with great probability into a desired kinetic substate. As an illustration we consider an eight-state model of the Shaker K channel driven by dichotomous voltage fluctuations. This technique may provide a powerful new tool for the study of the kinetics of voltage ...

2001
Asen Asenov Gabriela Slavcheva Andrew R. Brown John H. Davies Subhash Saini

In this paper, we present a detailed simulation study of the influence of quantum mechanical effects in the inversion layer on random dopant induced threshold voltage fluctuations and lowering in sub-100 nm MOSFETs. The simulations have been performed using a three-dimensional (3-D) implementation of the density gradient (DG) formalism incorporated in our established 3-D atomistic simulation ap...

2001
Asen Asenov John H. Davies

Intrinsic threshold voltage fluctuations introduced by local oxide thickness variations (OTVs) in deep submicrometer (decanano) MOSFETs are studied using three-dimensional (3-D) numerical simulations on a statistical scale. Quantum mechanical effects are included in the simulations employing the density gradient (DG) formalism. The random Si/SiO2 and gate/SiO2 interfaces are generated from a po...

Journal: :Biophysical journal 1972
J R Segal

Measurements were made of the spectrum of the voltage fluctuations developed in the 0.025-10 Hz band during active transport by frog abdominal skin with Ringer's solution on both sides. Decreasing the potential across the skin by an external supply of current diminishes the voltage fluctuations, but they do not disappear, reaching a minimum finite value. Thus, fluctuations in both the resistanc...

Journal: :international journal of smart electrical engineering 2014
haidar samet mohammad amin jarrahi

electric arc furnace (eaf) is one of the largest loads in electric power systems. it is highly time varying and nonlinear. its reactive power variations cause voltage fluctuations in nearby system which is known as flicker. on the other hand the nonlinear voltage-current characteristic causes strong voltage and current harmonics in eaf. to this end flexible ac transmission systems (facts) techn...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2013
Fernando R Fernandez Paola Malerba Paul C Bressloff John A White

In active networks, excitatory and inhibitory synaptic inputs generate membrane voltage fluctuations that drive spike activity in a probabilistic manner. Despite this, some cells in vivo show a strong propensity to precisely lock to the local field potential and maintain a specific spike-phase relationship relative to other cells. In recordings from rat medial entorhinal cortical stellate cells...

Journal: :FEBS letters 2003
Xavier Bonnefont Patrice Mollard

The anterior pituitary is an endocrine gland that controls basic body functions. Pituitary cell functioning depends on membrane excitability, which induces cytosolic calcium rises. Here, we reported the first identification of small-amplitude voltage fluctuations that controlled spike firing in endocrine cells recorded in situ. Three patterns of voltage fluctuations were distinguishable by thei...

2013
Antonio Gnudi Susanna Reggiani Elena Gnani Giorgio Baccarani

An analytical model of the threshold voltage variance induced by random dopant fluctuations (RDF) in junctionless (JL) FETs is derived for both cylindrical nanowire (NW) and planar double-gate (DG) structures considering only the device electrostatics in subthreshold. The model results are shown to be in reasonable agreement with TCAD simulations for different gate lengths and device parameters...

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