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| Registros recuperados: 94 | |
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| Le Moine, Olivier; Geairon, Philippe; Robert, Stephane; Coudray, Sylvain; Fiandrino, Annie; Goraguer, Herle; Goulletquer, Philippe. |
| This study aims to assess the hydrological fluxes between the ‘Grand Etang’ of Miquelon and the oceanic part. Bathymetric surveys and Doppler current meter data acquisitions were carried out from August 14th, to November 5th, 2014 and from April 1st, to end of July 2015 to allow the following estimates : Total area (227 Ha) and characteristics volumes (total : 6,7 106 m3; oscillating 2,8 106 m3 (40 %); half-tide 5,2 106 m3) Velocity Index of channel to evaluate the average current speed at cross-section channel Fluxes, on flood and ebb tide respectively : Instantaneous flow: maxima at 94,2 et 65 m3/s mean 37.2 et 24.5 m3/s. in 2014 and maxima 85,03 et 73,62 m3/s mean 26,22 et 28,20 m3/s in 2015. Circulating fluxes by tide : maxima 1,06 and 1,09 106 m3,... |
| Tipo: Text |
Palavras-chave: Flux hydrologiques; Courantométrie; Bathymétrie; Grand Etang Miquelon; Modélisation; Hydrological fluxes; Current meter data acquisition; Bathymetry; Grand Etang Miquelon; Modelling. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00332/44325/43904.pdf |
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| Fleury, Elodie. |
| Le réseau ECOSCOPA, co-financé par la DPMA, a pour objectif de développer un outil permettant de mesurer, à plusieurs échelles, des paramètres environnementaux et biologiques en lien avec la croissance et la survie d’huîtres creuses en élevage. Sur l’année 2015 et afin de préparer de façon concertée ce projet, il a été proposé dans un premier temps de renforcer la synergie existante entre les réseaux RESCO et VELYGER afin de disposer d’un suivi proactif du cycle complet de production de l’huître (incluant le captage, la croissance, la reproduction, les éventuelles mortalités) à partir d’animaux communs sur différents sites ateliers, en lien avec l’acquisition de descripteurs environnementaux et physiologiques susceptibles d’influencer chacune de ces traits... |
| Tipo: Text |
Palavras-chave: Observation; Modélisation; Explication; Anticipation; Communication. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00334/44511/44204.pdf |
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| Bacher, Cedric. |
| Mathematical models for biological processes are presented as a set of tools for research, which ilave been created for specifie tasks impact studies, energy budget, test of hypothesis. Before using it, the mecanisms involved must be analysed, depending upon wether a whole ecosystem or one animal is studied (biological scale), physical conditions are taken into account (physical scale), with a predetermined scale for time. The no general method for analysis can be, as conditions of studies are so different, but sorne typical cases can show the approach of the modelizer and the recent developments of its tools. |
| Tipo: Text |
Palavras-chave: Shellfish; Test of hypothesis; Energy budget; Impact studies; Mathematical models; Conchyliculture; Validation hypothèse; Bilan énergétique; Etude d'impact; Modélisation. |
| Ano: 1985 |
URL: http://archimer.ifremer.fr/doc/1985/acte-6220.PDF |
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| Cognard, Jean-yves; Sohier, Laurent; Davies, Peter; Gineste, Bernard. |
| The objective of this study is to define a reliable tool for dimensioning of adhesively bonded assemblies, particularly for marine and underwater applications. A modified “Arcan” fixture, suited for the study of the behavior of bonded metal-metal assemblies, was developed in order to focus on the analysis of the behavior of the adhesive in thin films. To analyze the kinematics of the deformation of the adhesive joint non-contact extensometry techniques were employed. Thus various characteristics of the non-linear behavior of the adhesive were observed. The first results obtained for mixed assemblies (steel, aluminium, composite substrates) show similar behaviour of the adhesive using the proposed procedure. Furthermore, quality controls by DSC, and studies... |
| Tipo: Text |
Palavras-chave: Ssemblages collés; Modélisation; Essais; Comportement non-linéaire; Composites; Adhesive bonding; Model; Tests; Non linear behaviour; Composite. |
| Ano: 2006 |
URL: https://archimer.ifremer.fr/doc/00480/59156/61785.pdf |
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| Souchu, Philippe; Cochennec-laureau, Nathalie; Ratmaya, Widya; Retho, Michael; Andrieux, Francoise; Le Merrer, Yoann; Barille, Laurent; Barille, Anne-laure; Goubert, Evelyne; Plus, Martin; Laverman, Anniet. |
| Le projet DIETE a exploré les données hydrobiologiques (paramètres physico-chimiques, nutriments, phytoplancton) acquises depuis les années 80 dans les eaux côtières au large de la Loire et de la Vilaine, parallèlement à celles des deux fleuves. L’augmentation des concentrations de nitrates dans les eaux de la Loire, appuyée par les réserves sédimentaires de phosphates et de silicate ont entraîné de profonds bouleversements dans la dynamique du phytoplancton de la baie de Vilaine ces deux dernières décennies avec 1) une augmentation substantielle de la biomasse, 2) une modification importante de l’évolution saisonnière, 3) un changement dans les proportions entre diatomées et dinoflagellés au profit des diatomées. Ces résultats ouvrent tout un champ... |
| Tipo: Text |
Palavras-chave: Eutophisation; Azote; Phosphore; Silicium; Sédiments; Modélisation. |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00425/53695/54593.pdf |
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| Pallas Sanz, Enric. |
| The "Pertuis Breton" is a macrotidal estuary with an important mollusc exploitation of the inter-tidal zones. The main cultivated specie is M.edulis. In 1991, 250 long lines have been immersed in the centre of the bay. It will be able to extend the concession on the basis of the studies results about the trophy capacity of the "Pertuis Breton". Two deterministic models have been developed for to determining the geographical origin of the matter organic sources for the long line mussels culture, and the destine of this matter in the culture park: a) a model of trajectories of the organic matter particles, b) a coupled model of the hydrodynamic conditions and a ecophysiological model of the mussel growth. The result's simulations of the trajectories model... |
| Tipo: Text |
Palavras-chave: M. edulis; Potentialité mytilicole; Déplétion; Trajectoires; Modélisation; M. edulis; Trophy capacity; Depletion; Trajectories; Modelling. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/00449/56098/57634.pdf |
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| Registros recuperados: 94 | |
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