Search Results - "Velu, Gabriel"

Thermal Aging Study of an Anodized Aluminum Strip Wire for Winding and High Temperature Use by Ait-Amar, Sonia, Saoudi, Rania, Vélu, Gabriel

“…Electrical machines are commonly used in industries and transport and are manufactured with enameled wire coils with polymer insulation. In extreme conditions,…”
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Interpretation of Eccentricity of an Enameled Wire by Capacitance Measurements by Ait-Amar, Sonia, Koita, Abdoulay, Vélu, Gabriel

“…There are systems dedicated to measuring the eccentricity of enameled wires based on optical and electromagnetic phenomena. However, these methods are limited…”
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High-power density induction machines with increased windings temperature by Laidoudi, Aicha, Duchesne, Stéphane, Morganti, Fabrice, Velu, Gabriel

“…The increase of the operating temperature of electrical machines is a major challenge in the context of the large-scale use of electricity in many industrial…”
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High temperature machine: Characterization of materials for the electrical insulation by Lecointe, Jean-Philippe, Duchesne, Stéphane, Cozonac, Dorin, Vélu, Gabriel, Komeza, Krzysztof

“…This paper aims to present and analyze the materials adapted to design a machine that can work with a high current density without any specific cooling system…”
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Performance Analysis Based on Thermal Aging Tests of Sol-Gel and Polymer Insulated Wires by Enameling and Extrusion Technology by Pereira dos Santos Lima, Giovana, Ait-Amar, Sonia, Velu, Gabriel, Frezel, Philippe, Boudiba, Abdelhamid, Poelman, Mireille, Nicolay, Arnaud, Herze, Pierre-Yves

“…This research activity aims to evaluate electrical insulation system (EIS) intended for electrical machine winding wires. The evaluation is based on…”
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Downscaling at submicrometer scale of the gap width of interdigitated Ba0.5Sr0.5TiO3 capacitors by Khalfallaoui, Abderrazek, Burgnies, Ludovic, Blary, Karine, Velu, Gabriel, Lippens, Didier, Carru, Jean-Claude

“…The goal of this work was to study the influence of shrinking the gap width between the fingers of interdigitated tunable capacitors (IDCs). Voltage control of…”
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Thermal Evaluation of Silica-Based Insulated Magnet Wires from the Sol–Gel Process by Pereira dos Santos Lima, Giovana, Ait-Amar, Sonia, Velu, Gabriel, Frezel, Philippe, Boudiba, Abdelhamid, Lafqir, Soumaya, Nicolay, Arnaud, Herze, Pierre-yves, Poelman, Mireille

“…The conventional enameling process used in the fabrication of magnet wires requires harmful processes and products. The target of the industry in the actual…”
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A 360 degrees BST phase shifter with moderate bias voltage at 30 GHz by Vélu, Gabriel, Blary, Karine, Burgnies, Ludovic, Marteau, Aurélien, Houzet, Gregory, Lippens, Didier, Carru, Jean-Claude

“…Paraelectric BaSrTiO 3 films deposited by sol-gel have been investigated from 1 kHz to 40 GHz using coplanar waveguides, resonators, and inter-digitated…”
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Characterization of doped BST thin films deposited by sol-gel for tunable microwave devices by Khalfallaoui, Abderrazek, Velu, Gabriel, Burgnies, Ludovic, Carru, Jean-Claude

“…BST thin films with various dopants were grown by the sol-gel method on platinized silicon and MgO substrates. Their dielectric properties were investigated at…”
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Dielectric proprieties of ferroelectric ceramics derived from the system BaTiO3-NaNbO3-based solid solutions by ABDELKEFI, Helmi, KHEMAKHEM, Hamadi, VELU, Gabriel, CARRU, Jean Claude, VON DER MÜHLL, Régnault

“…Dielectric studies performed on the solid solution Bal-xNaxTil-xNbxO3 (BNTN) show that all compositions (x = 0.1, 0.15, 0.2, 0.4, 0.5 and 0.025, 0.05, 0.6,…”
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A TRL-Like Calibration for Tunable Interdigitated BST Varactors by Burgnies, L., Velu, G., Houzet, G., Blary, K., Carru, J.-C., Lippens, D.

“…We report on a de-embedding technique for measuring the reflection coefficients of comblike capacitors patterned on barium-strontium-titanate (BST)…”
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A Belief Function Solution for Stator Insulation Robustness Study by Hachour, Samir, Ait-Amar, Sonia, Delmotte, Francois, Velu, Gabriel

“…This paper proposes a model-based decision taking solution for electrical machines winding insulation robustness study. The solution is based on the Belief…”
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Modeling and Experimental Characterization of Nickel-Coated Copper Wires for the Design of Extremely High-Temperature Electrical Machines by Zouzou, Nada, Dang, Thu Thuy, Duchesne, Stephane, Velu, Gabriel, Ninet, Olivier

“…The requirement for electrical machines operating at extremely high temperatures has prompted researchers to focus on new materials. The use of nickel-coated…”
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Dielectric characteristics of an anodized aluminum strip by Babicz, Sylvain, Ait-Amar, Sonia, Velu, Gabriel

“…The purpose of this work is to study the possibility to integrate aluminum strip in motor coils with only alumina, growth by anodization, as inter-turn…”
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A 360 ^ BST Phase Shifter With Moderate Bias Voltage at 30 GHz by Velu, G., Blary, K., Burgnies, L., Marteau, A., Houzet, G., Lippens, D., Carru, J.-C.

“…Paraelectric BaSrTiO 3 films deposited by sol-gel have been investigated from 1 kHz to 40 GHz using coplanar waveguides, resonators, and inter-digitated…”
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Dispersion and loss of ferroelectric Ba0.5Sr0.5TiO3 thin films up to 110 GHz by Houzet, Gregory, Burgnies, Ludovic, Velu, Gabriel, Carru, Jean-Claude, Lippens, Didier

“…The frequency dependence of the complex permittivity (ε∗=ε′-jε″) of Ba0.5Sr0.5TiO3 0.3-μm-thick film is measured up to 110 GHz by using interdigitated…”
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Ferroelectric tunable balanced right- and left-handed transmission lines by Marteau, Aurélien, Velu, Gabriel, Houzet, Gregory, Burgnies, Ludovic, Lheurette, Eric, Carru, Jean Claude, Lippens, Didier

“…The tuning of the dispersion characteristics of a balanced composite right- and left-handed transmission lines is demonstrated at centimeter and millimeter…”
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Dispersion and loss of ferroelectric Ba 0.5 Sr 0.5 TiO 3 thin films up to 110 GHz by Houzet, Gregory, Burgnies, Ludovic, Velu, Gabriel, Carru, Jean-Claude, Lippens, Didier

“…The frequency dependence of the complex permittivity ( ε ∗ = ε ′ - j ε ″ ) of Ba 0.5 Sr 0.5 TiO 3 0.3 - μ m -thick film is measured up to 110 GHz by using…”
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Electrical Properties Comparison: Enamelled-Extruded Wires vs. Conventional Wires by Lima, Giovana Pereira dos Santos, Ait-Amar, Sonia, Velu, Gabriel, Frezel, Philippe

“…The principal aim of this work is to compare some electrical properties characterized experimentally on samples of enamelled wires developed from two kinds of…”
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Dielectric properties and ferroelectric phase transitions in BaxSr1-xTiO3 solid solution by ABDELKEFI, Helmi, KHEMAKHEM, Hamadi, VELU, Gabriel, CARRU, Jean Claude, VON DER MÜHLL, Régnault

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