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Publications associées (17)

Slip Ring Test Assembly With Increased Breakdown Voltage Limit for High-Voltage Bus Satellites

In this article, a setup including a passive gas breakdown mitigation technique for satellite slip ring assemblies (SRAs) is introduced and tested. The setup features a central conducting ring, separated from two external conducting limiting discs (LDs) by ...

2020

Rotating air-water ring in the vaneless gap of a pump-turbine operating in condenser mode

François Avellan, Elena Vagnoni, Loïc Andolfatto, Pierre Leroy

The rotating air-water ring, featuring a bubbly flow, in the vaneless gap of a reduced scale physical model of a pump-turbine operating in dewatered condition is investigated. High speed visualizations are performed together with pressure fluctuation measu ...

2018

Charge-Based Modeling of Double-Gate and Nanowire Junctionless FETs Including Interface-Trapped Charges

Jean-Michel Sallese, Farzan Jazaeri, Ashkhen Yesayan

Nanowire (NW) semiconductors are interesting devices for being used as sensors. Such NWs are doped silicon channels with electrical contacts at both ends, which is a kind of the so-called junctionless (JL) device. However, in contrast with the state-of-the ...

Institute of Electrical and Electronics Engineers2016

Stabilization of electrodynamic bearings with active magnetic dampers

Qingwen Cui

Electrodynamic Bearings (EDBs) are a kind of passive magnetic bearings that exploits the interaction between the induced eddy currents in a conductor and a magnetic field to provide re-storing forces. They have been regarded as an appealing alternative to ...

EPFL2016

Twin-box ITER joints under electromagnetic transient loads

Pierluigi Bruzzone, Kamil Sedlák, Boris Stepanov, Stephen Alfred March

The ITER Toroidal Field (TF) coil winding packs are designed to be wound in double-pancakes. The twin-box joint provides the electrical pancake-to-pancake connection between the two Nb3Sn 68 kA conductors and electrical coil-to-bus bar connection between t ...

Elsevier Science Sa2015

A Novel Technique for Online Partial Discharge Pattern Recognition in Large Electrical Motors

Maher Kayal

In this paper, a fully automated system for source detection of the partial discharges (PD) as an online diagnosis test in rotating machineries is proposed. This technique uses a modified version of the Expectation Maximization-based (EM) clustering techni ...

Ieee2014

Electronic elements based on quasitwo-dimensional electron/hole gas at charged domain walls in ferroelectrics

Alexander Tagantsev, Tomas Sluka

The present invention relates to a device including a ferroic material having a ferroelectric order parameter and including at least two domains, as well as a first and second electrode in electrical contact with the ferroic material. The device is configu ...

2014

Dynamical Coulomb Blockade Observed in Nanosized Electrical Contacts

Wolf-Dieter Schneider, François Patthey, I-Po Hong

Electrical contacts between nanoengineered systems are expected to constitute the basic building blocks of future nanoscale electronics. However, the accurate characterization and understanding of electrical contacts at the nanoscale is an experimentally c ...

2012

Device comprising electrical contacts and its production process

Christophe Ballif

The invention relates to a device comprising a conductive surface (12) and electrical contacts (14) by which an electric current is able to be passed. Said electrical contacts (14) comprise conductive seeds (16) deposited on the conductive surface (12), an ...

2011

A new platform concept for micro-scale SOFC using low temperature co-fired ceramic technology

Paul Muralt, Thomas Maeder, Bo Jiang

Micro-scale solid oxide fuel cells (μ-SOFCs) based on microfabrication processes have been found to be interesting as a battery replacement for portable power generation. The system consists of a fuel cell element, a fuel processing unit, a thermal control ...

2010

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