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This work was designed to investigate biological impacts at 3 dates (day 0, day 7 and day 21) on black scallops (Mimachlamys varia) in the three ports areas of La Rochelle town in winter 2017. In order to assess the biological effects on the wild population of black scallops, bivalves were place in four different locations: in the three ports (semi-closed areas), and in a marshland uncontaminated site (closed area). Biomarkers of effects (heavy metals) and exposure (oxidative stress and immunological effects) were assessed in the digestive glands of specimens in order to compare two techniques of sampling: “pool” technique and “inter-subject” technique. Our findings reported in the both techniques show significant modulation of GST (detoxification), SOD (antioxidant response) and MDA (lipid peroxidation) in bivalves exposed to a specific contamination in each port. Laccase-type enzyme also highlighted an important aspect in terms of biomarker response of the immune function at the 7th day of exposition. Overall, our study demonstrated that the “pool” technique using the same quality indicator M. varia could be used to obtain reliable results at lower costs. In contrast, in fundamental context, the “inter-subject” technique could bring more precise results to light. However, it requires burdensome and costly handling.
Marine Breitwieser; Emmanuel Dubillot; Marine Barbarin; Carine Churlaud; Valérie Huet; Frédéric Muttin; Helene Thomas. Assessment of the biological quality of port areas: A case study on the three harbours of La Rochelle: The marina, the fishing harbour and the seaport. PLOS ONE 2018, 13, e0198255 .
AMA StyleMarine Breitwieser, Emmanuel Dubillot, Marine Barbarin, Carine Churlaud, Valérie Huet, Frédéric Muttin, Helene Thomas. Assessment of the biological quality of port areas: A case study on the three harbours of La Rochelle: The marina, the fishing harbour and the seaport. PLOS ONE. 2018; 13 (6):e0198255.
Chicago/Turabian StyleMarine Breitwieser; Emmanuel Dubillot; Marine Barbarin; Carine Churlaud; Valérie Huet; Frédéric Muttin; Helene Thomas. 2018. "Assessment of the biological quality of port areas: A case study on the three harbours of La Rochelle: The marina, the fishing harbour and the seaport." PLOS ONE 13, no. 6: e0198255.
F. Muttin; R. Campbell; A. Ouansafi; Y. Benelmostafa. Numerical modelling and full-scale exercise of oil-spill containment boom on Galician coast. International Journal of Computational Methods and Experimental Measurements 2017, 5, 760 -770.
AMA StyleF. Muttin, R. Campbell, A. Ouansafi, Y. Benelmostafa. Numerical modelling and full-scale exercise of oil-spill containment boom on Galician coast. International Journal of Computational Methods and Experimental Measurements. 2017; 5 (5):760-770.
Chicago/Turabian StyleF. Muttin; R. Campbell; A. Ouansafi; Y. Benelmostafa. 2017. "Numerical modelling and full-scale exercise of oil-spill containment boom on Galician coast." International Journal of Computational Methods and Experimental Measurements 5, no. 5: 760-770.
Oil-spill curtain booms are an important response device dedicated to containing and deviating floating pollutants. The hydrodynamic and structural limitations of curtain booms necessitate numerical modelling for efficient usage assessment. A four step model is proposed and applied during an exercise performed in the Galician region of Spain. Experimental results are used to produce a re-analysis of the model and improve contingency planning.
F. Muttin; R. Campbell; A. Ouansafi; Y. Benelmostafa. Numerical modelling and experimentation of oil-spill curtain booms: Application to a harbor. AIP Conference Proceedings 2017, 1798, 020104 .
AMA StyleF. Muttin, R. Campbell, A. Ouansafi, Y. Benelmostafa. Numerical modelling and experimentation of oil-spill curtain booms: Application to a harbor. AIP Conference Proceedings. 2017; 1798 (1):020104.
Chicago/Turabian StyleF. Muttin; R. Campbell; A. Ouansafi; Y. Benelmostafa. 2017. "Numerical modelling and experimentation of oil-spill curtain booms: Application to a harbor." AIP Conference Proceedings 1798, no. 1: 020104.
Isabella Ascione Kenov; Frédéric Muttin; Rose Campbell; Rodrigo Fernandes; Francisco Campuzano; Fernando Machado; Guilherme Franz; Ramiro Neves. Water fluxes and renewal rates at Pertuis d'Antioche/Marennes-Oléron Bay, France. Estuarine, Coastal and Shelf Science 2015, 167, 32 -44.
AMA StyleIsabella Ascione Kenov, Frédéric Muttin, Rose Campbell, Rodrigo Fernandes, Francisco Campuzano, Fernando Machado, Guilherme Franz, Ramiro Neves. Water fluxes and renewal rates at Pertuis d'Antioche/Marennes-Oléron Bay, France. Estuarine, Coastal and Shelf Science. 2015; 167 ():32-44.
Chicago/Turabian StyleIsabella Ascione Kenov; Frédéric Muttin; Rose Campbell; Rodrigo Fernandes; Francisco Campuzano; Fernando Machado; Guilherme Franz; Ramiro Neves. 2015. "Water fluxes and renewal rates at Pertuis d'Antioche/Marennes-Oléron Bay, France." Estuarine, Coastal and Shelf Science 167, no. : 32-44.
Floating barriers, often named booms, are used to contain oil. They are a main device installed during pollution response and their efficient positioning is a critical question for both effective oil containment and structural material resistance. A 3D non-linear finite element model for static moored booms is forced by sea current hydrodynamic pressure. To improve the numerical convergence of the membrane equilibrium during the Newton-Raphson scheme we initialize the 3D solution by using a 2D non-linear cable model. The membrane stretched surface representing the boom permits to define the material stress and the boom subsea skirt angulation. Full-scale experiments are performed on the European Atlantic coast to measure boom mooring tension and boom skirt geometry. In this chapter, in-situ experimental method at coastal sea is given. Validation protocol of numerical results by experimental ones is described. Threshold values on boom tension, to avoid structural break, and skirt angle to evaluate the oil containment efficiency are discussed. Finally, methodological aspect to combat oil pollution by using contingency planning based on such numerical modelling of booming structure is addressed.
Frederic Muttin. Structural Analysis of Oil-Spill Booms. Mathematical Modelling and Numerical Simulation of Oil Pollution Problems 2015, 2, 141 -166.
AMA StyleFrederic Muttin. Structural Analysis of Oil-Spill Booms. Mathematical Modelling and Numerical Simulation of Oil Pollution Problems. 2015; 2 ():141-166.
Chicago/Turabian StyleFrederic Muttin. 2015. "Structural Analysis of Oil-Spill Booms." Mathematical Modelling and Numerical Simulation of Oil Pollution Problems 2, no. : 141-166.
Nous décrivons un travail d'investigation sur des activités en mathématiques appliquées. Elles traitent des problèmes de transport dans la ville de demain. La situation porte sur la mobilité urbaine des citadins et les questionnements des usagers, des autorités publiques et de toutes les parties prenantes. Il s'agit d'organiser mieux et de savoir comment mieux utiliser les moyens disponibles. Nous partons des problématiques générales, exposées du point de vue pratique, pour aller vers des activités de recherche spécifiques, et des méthodes mathématiques. Sept sujets de recherche en mathématiques sont établis, avec leurs méthodologies et les objectifs d'un travail de recherche. Une première approche concrète abordera la ville de Casablanca. Le texte revêt un intérêt général pour les chercheurs du domaine, les autorités publiques et tous ceux qui s'intéressent au rôle des mathématiques dans la société. Les problèmes complexes possèdent beaucoup de variables. Ils demandent des efforts de modélisation, d'algorithmique et de fortes capacités de représentation.
Frédéric Muttin. Mathématiques et Transport Urbain. 2012, 1 .
AMA StyleFrédéric Muttin. Mathématiques et Transport Urbain. . 2012; ():1.
Chicago/Turabian StyleFrédéric Muttin. 2012. "Mathématiques et Transport Urbain." , no. : 1.
Oil slick detection and guiding of oil recovery ship by using on board tethered UAV need a non-linear dynamic model for the aerial umbilical including variable length domain and material elasticity. Considering the flight phases constraints and the system definition, two continuous models are presented using a Lagrangian approach or an updated Lagrangian one, both including different kinds of boundary condition at the umbilical bottom end. At the winch position, during a take-off or landing (TOL) phase flight, a geometrical singularity occurs in the Lagrangian approach while in the updated Lagrangian one, a difference exists between the unstrained curvilinear coordinate velocity and the strained umbilical material point velocity. Properties of internal strain energy and non-linear strain measure permit to characterize the regularity of the longitudinal and transversal umbilical displacements. From the continuous models we deduce the discrete finite-element models. Numerical examples with until eleven nodes are given, including the case of an emergency flight phase. Applications of this captive aerial detection system are equally discussed.
Frédéric Muttin. Umbilical deployment modeling for tethered UAV detecting oil pollution from ship. Applied Ocean Research 2011, 33, 332 -343.
AMA StyleFrédéric Muttin. Umbilical deployment modeling for tethered UAV detecting oil pollution from ship. Applied Ocean Research. 2011; 33 (4):332-343.
Chicago/Turabian StyleFrédéric Muttin. 2011. "Umbilical deployment modeling for tethered UAV detecting oil pollution from ship." Applied Ocean Research 33, no. 4: 332-343.
F. Muttin. On experiments on oil-spill booms in three Atlantic coastal zones: La Rochelle, Lorient and Brest. WATER POLLUTION 2010 2010, 135, 49 -60.
AMA StyleF. Muttin. On experiments on oil-spill booms in three Atlantic coastal zones: La Rochelle, Lorient and Brest. WATER POLLUTION 2010. 2010; 135 ():49-60.
Chicago/Turabian StyleF. Muttin. 2010. "On experiments on oil-spill booms in three Atlantic coastal zones: La Rochelle, Lorient and Brest." WATER POLLUTION 2010 135, no. : 49-60.
F. Muttin. Oil spill boom modelling by the finite-element method. Sustainable Irrigation Management, Technologies and Policies 2008, 111, 383 -392.
AMA StyleF. Muttin. Oil spill boom modelling by the finite-element method. Sustainable Irrigation Management, Technologies and Policies. 2008; 111 ():383-392.
Chicago/Turabian StyleF. Muttin. 2008. "Oil spill boom modelling by the finite-element method." Sustainable Irrigation Management, Technologies and Policies 111, no. : 383-392.
Frederic Muttin. Structural analysis of oil-spill containment booms in coastal and estuary waters. Applied Ocean Research 2008, 30, 107 -112.
AMA StyleFrederic Muttin. Structural analysis of oil-spill containment booms in coastal and estuary waters. Applied Ocean Research. 2008; 30 (2):107-112.
Chicago/Turabian StyleFrederic Muttin. 2008. "Structural analysis of oil-spill containment booms in coastal and estuary waters." Applied Ocean Research 30, no. 2: 107-112.
Frederic Muttin. Présentation du projet SIMBAR sur la modélisation des barrages anti-hydrocarbure. La Houille Blanche 2007, 93, 74 -79.
AMA StyleFrederic Muttin. Présentation du projet SIMBAR sur la modélisation des barrages anti-hydrocarbure. La Houille Blanche. 2007; 93 (5):74-79.
Chicago/Turabian StyleFrederic Muttin. 2007. "Présentation du projet SIMBAR sur la modélisation des barrages anti-hydrocarbure." La Houille Blanche 93, no. 5: 74-79.
F. Muttin; S. Nouchi. Numerical study of an oil spill containment boom by the finite-element method. Sustainable Irrigation Management, Technologies and Policies 2006, 95, 1 .
AMA StyleF. Muttin, S. Nouchi. Numerical study of an oil spill containment boom by the finite-element method. Sustainable Irrigation Management, Technologies and Policies. 2006; 95 ():1.
Chicago/Turabian StyleF. Muttin; S. Nouchi. 2006. "Numerical study of an oil spill containment boom by the finite-element method." Sustainable Irrigation Management, Technologies and Policies 95, no. : 1.
The first objective of this paper is to model the antipollution floating boom by considering it in the three different forms: the form of cables, the form of assemblies of articulated body, and in the form of membrane bodies. and then we make a comparison of its three different configurations.
Farid Boushaba; Serge Nouchi; Mohammed Boulerhcha; Frederic Muttin. STRUCTURAL MODELLING OF OIL SPILL CONTAINMENT BOOMS BY THE FINITE ELEMENT METHOD. International Oil Spill Conference Proceedings 2005, 2005, 595 -599.
AMA StyleFarid Boushaba, Serge Nouchi, Mohammed Boulerhcha, Frederic Muttin. STRUCTURAL MODELLING OF OIL SPILL CONTAINMENT BOOMS BY THE FINITE ELEMENT METHOD. International Oil Spill Conference Proceedings. 2005; 2005 (1):595-599.
Chicago/Turabian StyleFarid Boushaba; Serge Nouchi; Mohammed Boulerhcha; Frederic Muttin. 2005. "STRUCTURAL MODELLING OF OIL SPILL CONTAINMENT BOOMS BY THE FINITE ELEMENT METHOD." International Oil Spill Conference Proceedings 2005, no. 1: 595-599.
This is a presentation of a quadrilateral finite element for wrinkled curved elastic membranes. A modified form of the deformation gradient enables us to avoid the spurious compressive stresses generated by a classical model. It results in non-linear relations for the eigencomponents of the Cauchy stress tensor, which are solved by means of a secant method. The application of the element to sail design is presented in this paper.
Frederic Muttin. A finite element for wrinkled curved elastic membranes, and its application to sails. Communications in Numerical Methods in Engineering 1996, 12, 775 -785.
AMA StyleFrederic Muttin. A finite element for wrinkled curved elastic membranes, and its application to sails. Communications in Numerical Methods in Engineering. 1996; 12 (11):775-785.
Chicago/Turabian StyleFrederic Muttin. 1996. "A finite element for wrinkled curved elastic membranes, and its application to sails." Communications in Numerical Methods in Engineering 12, no. 11: 775-785.
A two-grid iterative method for 3D linear elasticity problems, discretized using quadratic tetrahedral elements is proposed. The conjugate-gradient method is used as smoother. As compared to the conjugate-gradient alone, it is shown, via numerical examples, that the method is much more efficient on the basis of computing time and memory allocation. The convergence property of the method is sensitive to the regularity of the problem.
F. Muttin; J. -L. Chenot. On a conjugate‐gradient two‐grid method for three‐dimensional elasticity. Engineering Computations 1995, 12, 3 -20.
AMA StyleF. Muttin, J. -L. Chenot. On a conjugate‐gradient two‐grid method for three‐dimensional elasticity. Engineering Computations. 1995; 12 (1):3-20.
Chicago/Turabian StyleF. Muttin; J. -L. Chenot. 1995. "On a conjugate‐gradient two‐grid method for three‐dimensional elasticity." Engineering Computations 12, no. 1: 3-20.
International audienceThe Navier-Stokes incompressible model is used to describe two-dimensional metal casting flow. Such flows involve moving free boundaries. A new numerical algorithm has been developed using the Lagrangian finite-element method. It allows treatment of flows with moderate Reynolds numbers. The main feature is to avoid the calculation of the convective term, together with an automatic remeshing technique, to cure the mesh distortions. The problem of the free oscillation of a liquid is treated to verify the formulation. An application of this method to the computation of an industrial metal casting flow situation is presented
F. Muttin; T. Coupez; M. Bellet; J. L. Chenot. Lagrangian finite-element analysis of time-dependent viscous free-surface flow using an automatic remeshing technique: Application to metal casting flow. International Journal for Numerical Methods in Engineering 1993, 36, 2001 -2015.
AMA StyleF. Muttin, T. Coupez, M. Bellet, J. L. Chenot. Lagrangian finite-element analysis of time-dependent viscous free-surface flow using an automatic remeshing technique: Application to metal casting flow. International Journal for Numerical Methods in Engineering. 1993; 36 (12):2001-2015.
Chicago/Turabian StyleF. Muttin; T. Coupez; M. Bellet; J. L. Chenot. 1993. "Lagrangian finite-element analysis of time-dependent viscous free-surface flow using an automatic remeshing technique: Application to metal casting flow." International Journal for Numerical Methods in Engineering 36, no. 12: 2001-2015.
An updated Lagrangian formulation is used to solve the Navier-Stokes equations. An integration scheme explicit in space and implicit in acceleration allows for the obtaining of a linear incremental fluid flow problem in terms of velocity. To treat complex flow geometry, a finite-element approximation is used as a space discretization.
F. Muttin; M. Bellet; J.L. Chenot. Numerical simulation of inertial effects in Newtonian flows: Application to the filling stage of the die-casting process. Journal of Materials Processing Technology 1992, 31, 65 -74.
AMA StyleF. Muttin, M. Bellet, J.L. Chenot. Numerical simulation of inertial effects in Newtonian flows: Application to the filling stage of the die-casting process. Journal of Materials Processing Technology. 1992; 31 (1-2):65-74.
Chicago/Turabian StyleF. Muttin; M. Bellet; J.L. Chenot. 1992. "Numerical simulation of inertial effects in Newtonian flows: Application to the filling stage of the die-casting process." Journal of Materials Processing Technology 31, no. 1-2: 65-74.
Frederic Muttin; T. Coupez; M. Bellet; J.L. Chenot. Newtonian Fluid Computations in Lagrangian Variables with a Remeshing Technique. Application to the Filling Stage of the Diecasting Process. Heat Transfer 1991, 207 -222.
AMA StyleFrederic Muttin, T. Coupez, M. Bellet, J.L. Chenot. Newtonian Fluid Computations in Lagrangian Variables with a Remeshing Technique. Application to the Filling Stage of the Diecasting Process. Heat Transfer. 1991; ():207-222.
Chicago/Turabian StyleFrederic Muttin; T. Coupez; M. Bellet; J.L. Chenot. 1991. "Newtonian Fluid Computations in Lagrangian Variables with a Remeshing Technique. Application to the Filling Stage of the Diecasting Process." Heat Transfer , no. : 207-222.