28 research outputs found

    Conférences sur le symbole des apÎtres, sur les sacremens, et sur les commandemens de Dieu et de l'Eglise

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    Tít. en antep.: "Missionnaire paroissial. Quatrieme partie"Sign.: a\p4\s, b-c\p6\s, A-Z\p6\s, 2A-2I\p6\s, 2K\p4\sCabeceras y viñetas xi

    Legislative Documents

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    Also, variously referred to as: House bills; House documents; House legislative documents; legislative documents; General Court documents

    Traverser les montagnes du Jura : identification de voies antiques de franchissement de la haute chaĂźne jurassienne par analyse LiDAR

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    International audienceLa question du franchissement protohistorique ou antique des hauts reliefs du massif du Jura et des incidences des voies de circulation sur le peuplement de cette rĂ©gion frontaliĂšre de montagne reste Ă  ce jour mal rĂ©solue en raison d’investigations archĂ©ologiques peu nombreuses. Les prospections LiDAR aĂ©roportĂ©es rĂ©alisĂ©es dans la rĂ©gion centrale de la haute chaĂźne (800 Ă  1 450 mĂštres d’altitude), Ă  proximitĂ© du dĂ©crochement de Pontarlier (faille gĂ©ologique transversale aux plis du relief), ont permis d’identifier les vestiges de trois voies jusqu’à prĂ©sent supposĂ©es ou inĂ©dites, susceptibles de correspondre Ă  des axes du rĂ©seau routier antique d’Agrippa, reliant la SĂ©quanie Ă  l’HelvĂ©tie Ă  travers la montagne jurassienne. Les caractĂ©ristiques morphologiques des voies identifiĂ©es, comme les premiers Ă©lĂ©ments de datation Ă©tablis Ă  partir du mobilier mĂ©tallique collectĂ©s sur deux d’entre elles, paraissent indiquer une frĂ©quentation centrĂ©e sur les ier, iie et iiie siĂšcles de notre Ăšre. Le tracĂ© des voies dĂ©termine un carrefour qui structure le franchissement du relief selon deux directions : vers la Suisse, depuis Ariolica (Pontarlier) vers Eburodunum (Yverdon), ou vers Lousonna (Lausanne)

    A finer look into the twilight zone : comparing acoustic records from an animal-borne miniature sonar and a multifrequency echosounder [résumé]

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    ICES. Working Group of Fisheries Acoustics, Science and Technology (WGFAST), Somone, SEN, 25-/04/2022 - 28/04/2022An animal-borne miniature active echo-sounder has been recently deployed on southern ele-phant seals (Mirounga leonina) from the Kerguelen and Argentinian colonies. This high frequency sonar (1.5 MHz) has shown a strong potential in detecting small mid-trophic level targets (zoo-plankton and micronekton). Relative abundance and distribution can be assessed, allowing to observe temporal (diel migration) and spatial patterns of plankton. However, the interpretation of the collected data remains uncertain. To address this lack of information, we conducted in situ experiments onboard the Marion Dufresne vessel in the Southern Ocean (10th February to 6th March 2022). The microsonar was fixed on the rosette sampler at 13 locations and attached 16 times to a trawling net (4 mm mesh). Records will be analyzed applying a recent method devel-oped on elephant seals data to detect targets in the beam and estimate organisms abundance. The result will be compared with biological samples and backscattering layers detected by a multifrequency EK80 echosounder (18, 38, 70, 120 and 200 kHz), offering an acoustic landscape of the seals foraging area. This study will benefit to ongoing research regarding biological fields visited by the elephant seals, bringing precision on microsonar target detection capacities
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