PPM (Post-Petroleum Materials) - GPR https://oskar-bordeaux.fr/handle/20.500.12278/170080 Mon, 20 Apr 2026 07:36:47 GMT 2026-04-20T07:36:47Z Quasi-flat high-index acoustic lens for 3D underwater ultrasound focusing https://oskar-bordeaux.fr/handle/20.500.12278/170400 LOMBARD, Olivier; KUMAR, Raj; MONDAIN-MONVAL, Olivier; BRUNET, Thomas; PONCELET, Olivier Tue, 31 May 2022 00:00:00 GMT https://oskar-bordeaux.fr/handle/20.500.12278/170400 2022-05-31T00:00:00Z