@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00801091v1> a dcat:Dataset ;
    dct:description """
              In underwater acoustics, detection of buried objects in sediments (cables, mines, . . . ) is a complex problem. Indeed, in order to ensure su cient penetration depth in marine sediments, low frequencies have to be used, implying a low resolution. A solution proposed to solve this problem is the parametric emission based on the nonlinear properties of seawater. This method can generate a low frequency wave from two directional high frequencies beams. The aim of this work is to present experimental results of a parametric propagation. Experiments have been carried out in a water tank in various configurations. These experimental measurements are then compared with simulation results obtained with a numerical model based on a fractional-step method presented at the Underwater Acoustic Measurements conference in 2011.
            """ ;
    dct:identifier "hal-00801091" ;
    dct:issued "2026-05-12T15:58:49.707984"^^xsd:dateTime ;
    dct:language "en" ;
    dct:modified "2026-05-12T15:58:49.707990"^^xsd:dateTime ;
    dct:publisher <https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> ;
    dct:title "The parametric propagation in underwater acoustics : experimental results" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "CCSD" ] ;
    dcat:distribution <https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00801091v1/resource/12220d98-d12e-4268-b3d5-4fbaa9b07af0> ;
    dcat:keyword "conference-papers",
        "infoeu-reposemanticsconferenceobject",
        "physmecaacouphysics-physicsmechanics-physicsacoustics-physicsclass-ph",
        "spiacouengineering-sciences-physicsacoustics-physicsclass-ph" ;
    dcat:landingPage <Acoustics%202012> .

<Acoustics%202012> a foaf:Document .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00801091v1/resource/12220d98-d12e-4268-b3d5-4fbaa9b07af0> a dcat:Distribution ;
    dct:format "HTML" ;
    dct:issued "2026-05-12T15:58:49.712760"^^xsd:dateTime ;
    dct:modified "2026-05-12T15:58:49.695542"^^xsd:dateTime ;
    dct:title "The parametric propagation in underwater acoustics : experimental results" ;
    dcat:accessURL <https://hal.science/hal-00801091> .

<https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> a foaf:Agent ;
    foaf:name "test_moissonnage_selune" .