Le syndrome des antisynthétases correspond à l'association d'une myosite, une polyarthrite, un phénomène de Raynaud, une atteinte pulmonaire interstitielle et une hyperkératose fissurée des mains. Des anticorps de type «antisynthétases», en particulier l'anticorps anti-Jo1caractérise ce syndrome. L'atteinte cardiaque est rare, pouvant être parfois fatale. Patient âgé de 42 ans, hospitalisé pour...

MOTIVATION A common problem with electrophysiological recording is the contamination of the signal of interest with interference generated at mains frequency. Standard filtering techniques are often inappropriate because the signal of interest has components spectrally close to the mains frequency. RESULTS A digital subtraction method is described for removing mains frequency interference fro...

The paper presents a Current-Source Inverter (CSI) topology tailored for large multi-megawatt wind turbine applications. The cable distance between the generator and the mains enables the realization of a significant portion of the DC-link inductance. In order to improve the efficiency and to allow the possible utilization of rugged inexpensive Thyristors, PWM modulation is not used in the main...

The prologue of new High Voltage (HV) transmission mains into the community necessitates earthing design to ensure safety compliance of the system. Concrete poles are widely used within HV transmission mains; many retired transmission mains with timber poles are being replaced with concrete ones, green transmission mains are deploying concrete poles. The earthing arrangement of the concrete pol...

A new PD (partial discharge) measuring system calibrator is described. The device, battery operated, may be used either grounded or in a floating position, and generates securely mains-synchronized impulses by capacitive coupling. It allows the determination of the scale factor k and resolution time Tr in PD measuring systems, and it fulfils the requirements of International Standard IEC 60270....