Publications related to Drift velocity

CFD-based analysis of pumped storage power plants implementing hydraulic short circuit operations

Hydraulic short circuit (HSC), corresponding to the simultaneous operation of the pumps and turbines, enhances the power flexibility of a pumped storage power plant (PSPP). However, comprehensive analyses are imperative to guarantee a secure and reliable o ...

Elsevier Sci Ltd2024

An experimental study on the upper part-load elliptical vortex instability in a Francis turbine

François Avellan, Elena Vagnoni, Arthur Tristan Favrel, Andres Müller, Ali Amini

This paper presents preliminary results of an experimental study on the occurrence and development of the upper part-load instability in a reduced-scale Francis turbine. The study includes draft tube pressure measurements, high-speed flow visualization, an ...

IOP PUBLISHING LTD2021

Theory and Computation of Hall Scattering Factor in Graphene

Samuel Poncé, Feliciano Giustino

The Hall scattering factor, r, is a key quantity for establishing carrier concentration and drift mobility from Hall measurements; in experiments, it is usually assumed to be 1. In this paper, we use a combination of analytical and ab initio modeling to de ...

AMER CHEMICAL SOC2020

Implementation of drift velocities and currents in SOLEDGE2D-EIRENE

Davide Galassi, Nicolas Mellet, Eric Serre

In order to improve cross-field transport description, drifts and currents have been implemented in SOLEDGE2D-EIRENE. The derivation of an equation for the electric potential is recalled. The resolution of current equation is tested in a simple slab case. ...

2017

Inkjet printing of carbon black electrodes for dielectric elastomer actuators

Herbert Shea, Samuel Rosset, Samuel Schlatter

Inkjet printing is an appealing technique to print electrodes for Dielectric Elastomer Actuators (DEAs). Here we present the preparation and ink-jet printing of a carbon black electrode mixture and characterise its properties. Carbon black has been used ex ...

Spie-Int Soc Optical Engineering2017

Room-Temperature Negative Differential Resistance in Graphene Field Effect Transistors: Experiments and Theory

Mihai Adrian Ionescu, Arnaud Magrez, Antonios Bazigos, Laurent Syavoch Bernard, Pankaj Sharma

In this paper we demonstrate experimentally and discuss the negative differential resistance (NDR) in dual-gated graphene field effect transistors (GFETs) at room temperature for various channel lengths, ranging from 200 nm to 5 mu m. The GFETs were fabric ...

Amer Chemical Soc2015

Modulation Doping of GaAs/AlGaAs Core-Shell Nanowires With Effective Defect Passivation and High Electron Mobility

Anna Fontcuberta i Morral, Federico Matteini, Alberto Casadei, Sonia Conesa Boj, Francesca Amaduzzi, Fauzia Jabeen

Reliable doping is required to realize many devices based on semiconductor nanowires. Group IIIV nanowires show great promise as elements of high-speed optoelectronic devices, but for such applications it is important that the electron mobility is not comp ...

American Chemical Society2015

Mobility Measurement in Nanowires Based on Magnetic Field-Induced Current Splitting Method in H-Shape Devices

Jean-Michel Sallese, Didier Bouvet, Farzan Jazaeri, Lucian Barbut

This work investigates a new method to measure mobility in nanowires. Based on a simple analytical approach and numerical simulations, we bring evidence that the traditional technique of Hall voltage measurement in low dimensional structures such as nanowi ...

Institute of Electrical and Electronics Engineers2014

Integrated Hall Magnetic Angle Sensors

Radivoje Popovic

A magnetic angle sensor is a matched combination of a permanent magnet, affixed to a rotating shaft, and a magnetic field sensor. The magnet part of the angle sensors is configured so as to create either a magnetic field with an angle-dependent component p ...

Soc Microelectronics, Electron Components Materials-Midem2014

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Drift velocity

CFD-based analysis of pumped storage power plants implementing hydraulic short circuit operations

An experimental study on the upper part-load elliptical vortex instability in a Francis turbine

Theory and Computation of Hall Scattering Factor in Graphene

Lorentz Force from a Current-Carrying Wire on a Charge in Motion under the Assumption of Neutrality in the Symmetrical Frame of Reference

Implementation of drift velocities and currents in SOLEDGE2D-EIRENE

Inkjet printing of carbon black electrodes for dielectric elastomer actuators

Room-Temperature Negative Differential Resistance in Graphene Field Effect Transistors: Experiments and Theory

Modulation Doping of GaAs/AlGaAs Core-Shell Nanowires With Effective Defect Passivation and High Electron Mobility

Mobility Measurement in Nanowires Based on Magnetic Field-Induced Current Splitting Method in H-Shape Devices

Integrated Hall Magnetic Angle Sensors

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Chat with Graph Search

An experimental study on the upper part-load elliptical vortex instability in a Francis turbine

Theory and Computation of Hall Scattering Factor in Graphene

Integrated Hall Magnetic Angle Sensors

Lorentz Force from a Current-Carrying Wire on a Charge in Motion under the Assumption of Neutrality in the Symmetrical Frame of Reference

Implementation of drift velocities and currents in SOLEDGE2D-EIRENE

Inkjet printing of carbon black electrodes for dielectric elastomer actuators

Modulation Doping of GaAs/AlGaAs Core-Shell Nanowires With Effective Defect Passivation and High Electron Mobility

CFD-based analysis of pumped storage power plants implementing hydraulic short circuit operations

Room-Temperature Negative Differential Resistance in Graphene Field Effect Transistors: Experiments and Theory

Mobility Measurement in Nanowires Based on Magnetic Field-Induced Current Splitting Method in H-Shape Devices