نتایج جستجو برای: electrical polarity detector

تعداد نتایج: 274392  

2015

In 1879 E. H. Hall observed that when an electrical current passes through a sample placed in a magnetic field, a potential proportional to the current and to the magnetic field is developed across the material in a direction perpendicular to both the current and to the magnetic field [1]. This effect is known as the Hall effect, and is the basis of many practical applications and devices such ...

ژورنال: سنجش و ایمنی پرتو 2020

In this paper we consider a gaseous detector and supposed, because of pass of an ionizing radiation, an electron created inside it. By numerical simulation with monte carlo method and concluding the impacts, scatterings and creation of secondary electrons, we find the trajectory of initial and secondary electrons. Dependence of number of secondary electrons to applied electrical field is invest...

Journal: :J. Low Power Electronics 2012
Muhammad Tariqus Salam Fayçal Mounaïm Dang Khoa Nguyen Mohamad Sawan

In this paper, we present low-power circuit techniques for implementing a closed-loop neurostimulator (CLNS) as an alternative treatment for medically refractory epilepsy. The proposed circuit has low-power dissipation with better detection sensitivity compared to the recently proposed circuit techniques for epileptic seizure detector. We demonstrate low-power circuit techniques for implementat...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2014
Walter Marcotti Laura F Corns Terri Desmonds Nerissa K Kirkwood Guy P Richardson Corné J Kros

Tip links between adjacent stereocilia are believed to gate mechano-electrical transducer (MET) channels and mediate the electrical responses of sensory hair cells. We found that mouse auditory hair cells that lack tip links due to genetic mutations or exposure to the Ca(2+) chelator BAPTA can, however, still respond to mechanical stimuli. These MET currents have unusual properties and are pred...

Journal: :Bioelectrochemistry 2011
Alexander G Volkov Justin C Foster Emil Jovanov Vladislav S Markin

Plant tissue has biologically closed electrical circuits and electric fields that regulate its physiology. The biologically closed electrochemical circuits in the leaves of Aloe vera were analyzed using the charge stimulation method with Ag/AgCl electrodes inserted along a leaf at 1-2 cm distance. The electrostimulation was provided with different timing and different voltages. Strong electrica...

Journal: :Journal of Instrumentation 2023

Abstract The barrel section of the novel MIP Timing Detector (MTD) will be constructed as part upgrade CMS experiment to provide a time resolution for single charged tracks in range 30–60 ps using LYSO:Ce crystal arrays read out with Silicon Photomultipliers (SiPMs). A major challenge operation such detector is extremely high radiation level, about 2 × 10 14 1 MeV(Si) Eqv. n/cm , that integrate...

Journal: :Current Opinion in Neurobiology 2018
Maarten HP Kole Romain Brette

The axon initial segment (AIS) is a unique domain of the proximal axon serving critical electrical and structural roles including the initiation of action potentials and maintenance of cellular polarity. Recent experimental and theoretical advances demonstrate that the anatomical site for initiation is remarkably diverse. The AIS location varies not only axially, along the axon, but axons also ...

Journal: :Acta neurobiologiae experimentalis 1976
K Gralewicz

The influence of electrical stimulation of the posterior part of the hippocampus on acquisition and performance of the conditioned, unidirectional avoidance response was investigated in 26 cats. No significant differences in the speed of learning between stimulated and control animals were observed. However, electrical hippocampal stimulation with parameters 7/s, 100 microamps, 7/s, 200 microam...

2004
Andreas Stephen Gerd Sepold Simeon Metev Frank Vollertsen

In this treatment method laser radiation, which is guided from a co-axially expanding liquid jet-stream, locally initiates on a metal surface a thermochemical etching reaction, which leads to selective material removal. Time-resolved measurements of the electrical potential were correlated with the specific processing parameters to identify conditions for stable and enhanced chemical etching re...

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