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L'Algérie à gauche (1900–1962): Socialistes à l'époque coloniale.
Publication Type: Review
Source(s): Journal of North African Studies. Jul2019, Vol. 24 Issue 4, p704-706. 3p.
Temperature effect on electrical characteristics of negative DC corona charged polyimide films.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Dielectrics & Electrical Insulation. Apr2018, Vol. 25 Issue 2, p421-427. 7p.
Abstract: The study of the effect of sample temperature on the electric properties of PI films has been investigated. Surface potential decay (SPD) measurements on PI (Kapton HN, thickness: 50 ?m) films were measured, after negative corona discharge, as a functi...
Effect of inclination angle of hydrophobic silicone insulation covered by water drops on its DC performance.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Dielectrics & Electrical Insulation. Oct2017, Vol. 24 Issue 5, p2890-2900. 11p.
Abstract: The objective sought through this paper consists in quantifying the effect of the inclination angle relative to the horizontal on the electrical performance of hydrophobic silicone surface covered by water drops with variable number, volume and electri...
Modeling and Analysis of Conducted and Radiated Emissions Due to Common Mode Current of a Buck Converter.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Electromagnetic Compatibility. Aug2017, Vol. 59 Issue 4, p1260-1267. 8p.
Abstract: This paper presents the study of conducted and radiated emissions due to common-mode (CM) currents flowing through the power cables of a DC–DC converter system. In order to predict the conducted electromagnetic interferences (EMI) emissions, a model of...
Comparison of the performance of silicone and glass barriers under direct current and very severe conditions of pollution.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Dielectrics & Electrical Insulation. Feb2017, Vol. 24 Issue 1, p471-482. 12p.
Abstract: The main objective of this paper consists in the comparison of the performance in DC voltage of a short air gap with non-uniform electrical field protected by silicone or glass barriers under very severe conditions of pollution. The choice of the inves...
Breakdown strength measurements on cylindrical polyvinyl chloride sheaths under AC and DC voltages.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Dielectrics & Electrical Insulation. Oct2014, Vol. 21 Issue 5, p2267-2273. 7p.
Abstract: In this work, we study the effect of the applied voltage form and its rise speed on breakdown voltage of polyvinyl chloride sheaths. We first present the statistical model of Weibull used for processing the results, then we describe the experimental de...
2-D simulation of dual frequency capacitively coupled helium plasma, using COMSOL multiphysics.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Dielectrics & Electrical Insulation. Oct2013, Vol. 20 Issue 5, p1616-1624. 9p.
Abstract: A two-dimensional (2D) self-consistent fluid simulation of dual frequency capacitively coupled radio discharges of helium plasma is presented. The model solves the continuity equations for charged species and the electron energy balance equation, coupl...
Effect of isolation mode and surface condition of an insulating barrier on the performance of a non-uniform field electrode system under positive DC voltage.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Dielectrics & Electrical Insulation. Oct2013, Vol. 20 Issue 5, p1523-1529. 7p.
Abstract: The aim of this paper is the study of the effect of the isolation and the surface condition of an insulating barrier on the performance of a non-uniform field electrode system. The study is carried out under positive DC voltage. The dielectric properti...
One-Pot Synthesis of 1,4-Dihydropyridines via a Phenylboronic Acid Catalyzed Hantzsch Three-Component Reaction.
Publication Type: Academic Journal
Source(s): Synlett. Mar2008, Vol. 2008 Issue 4, p509-512. 4p.
Abstract: A simple, inexpensive, and efficient one-pot synthesis of 1,4-dihydropyridine derivatives was achieved in good yields via the three-component reaction of aromatic aldehydes, ethyl acetoacetate, and ammonium acetate using PhB(OH) 2as catalyst. [ABSTRACT...
Synthesis of Functionalized Spiroheterocycles by Sequential Multicomponent Reaction/Metal-Catalyzed Carbocylizations from Simple ?-Ketoesters and Amides.
Publication Type: Academic Journal
Source(s): Synlett. Apr2007, Vol. 2007 Issue 7, p1037-1042. 6p.
Abstract: A new strategy from simple cyclic ?-ketoesters or amides involving a selective three-component reaction and a ring-closing metathesis or a palladium-catalyzed carbocyclization in a sequential fashion to access spiroheterocycles is reported. This ?exped...