Biofilms can be formed on both biotic and abiotic surfaces, including living tissues, indwelling medical devices, industrial or portable water system piping, natural aquatic systems [...]

An isolation system installed in a nuclear power plant (NPP) could increase seismic safety during events. On the other hand, more significant relative displacement may occur due to system. The risk be increased case of an interface piping that connects isolated and nonisolated structures. Therefore, it is necessary consider systems when evaluating isolated-NPPs. This study performed fragility a...

Author: GAUDIN Michael Affiliation: DER Electricite De France Title: INVERSE IDENTIFICATION AND UPDATING IN VIBRATIONS OF PIPING SYSTEMS Text: This paper concerns the area of vibrations in piping systems of nuclear power plants. One need to represent as better as possible the dynamic behaviour of those systems with respect to the measurements performed on a real structure. In a software develop...

Guided elastic waves in the frequency range of a few hundred kHz, generated and detected by appropriate transducer arrays, are used to monitor the structural integrity of pipes by comparing their actual state with a predefined reference state. For these purposes, theoretical, numerical, and experimental results are combined to study guided wave propagation and wave interaction with relevant def...