Non destructive testing research in France

After a summary reviewing of the industrial problems concerning ND T, the Author presents, the différent technics used for that, and gives their interest and limites . In the second part the Ahthor presents what are the research subjects which are runing now, in France, and presents the différent labs and sponsors which execute or pay it .Après une présentation sommaire des problèmes industriels motivant les travaux dans le domaine des contrôles non destructifs, l'auteur examine les différents moyens utilisés pour ces contrôles et en précise l'intérêt et les limites . Dans la deuxième partie, l'auteur présente les thèmes abordés par les programmes de recherche en cours ou à venir et brosse un tableau des différents organismes privés ou étatiques qui financent ou réalisent ces recherches

Radio Observations of the Black Hole Candidate GX 339-4

The black hole candidate GX 339-4 was first detected as a variable radio source by Sood & Campbell-Wilson in May 1994 with the Molonglo Observatory Synthesis Telescope (MOST). Since then, several observations have been obtained with the Australian Telescope Compact Array (ATCA) in order to study the radio behavior of this source in relation to its soft and hard X-ray activity. We present new results of high resolution radio observations performed with the ATCA in order to study the jet-like feature observed in GX 339-4 by Fender et al (1997). From the ATCA lightcurve at 8640 MHz, we find evidence of quenched radio emission from GX 339-4.Comment: To appear in Proc. 4th Compton Symposium, AIP pres