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Author |
Kanguem, J.N.; Robert, F.; Roos, C. |
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Title |
Biocorrosion of stainless steel 254 SMO by Amazonians microorganisms |
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Conference Article |
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Year |
2011 |
Publication |
European Corrosion Congress 2011, EUROCORR 2011 |
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Volume |
4 |
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3373 |
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Keywords |
Bio corrosion; Bio film; Electrochemical techniques; Stainless steel |
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Abstract |
Corrosion induced by the microorganisms is a phenomenon still poorly known and difficult to interpret. In this work we are interested in marine corrosion of stainless steel 254 SMO by Amazonians biofilms. The objective is to achieve an experimental laboratory to reproduce the corrosion completely controlled environment. The microbiologically influenced corrosion (MIC) of stainless steel by marine bacteria was investigated using surface analysis (scanning electron microscopy (SEM)), and electrochemical techniques (the open circuit potential, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization curves). The epifluorescence microscopy has been used to correlate the experiments. We investigated the role of some chemical parameters and the influence of the tide. |
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Laboratoire des Materiaux et Molecules en Milieu Amazonien, UAG-UMR ECOFOG, Campus Trou Biran, Cayenne 97337, French Guiana |
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Stockholm |
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9781618394125 (Isbn) |
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4-8 septembre 2011 |
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Notes |
Export Date: 23 May 2012; Source: Scopus; Language of Original Document: English; Correspondence Address: Kanauem, J.N.; Laboratoire des Materiaux et Molecules en Milieu Amazonien, UAG-UMR ECOFOG, Campus Trou Biran, Cayenne 97337, French Guiana; email: christophe.roos@guyane.univ-ag.fr |
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EcoFoG @ webmaster @ |
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21 |
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Author |
Vedel, V.; Camus, D.; Lamarre, G.P.A |
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Title |
Malaise and glass traps: useful means of catching canopy-dwelling spiders? |
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Journal Article |
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Year |
2011 |
Publication |
Newsletter of the British Arachnology Society |
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122 |
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12-15 |
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EcoFoG @ webmaster @ |
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157 |
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Author |
Degen, B.; Loveless, M.D.; Kremer, A. |
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Title |
Modelling and experimental on genetic processes in tropical and temperate forests |
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Book Whole |
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Year |
2002 |
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209 |
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Keywords |
Reviews And Visions; Modelling Approaches; Gene Flow; Population Differentiation |
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EMBRAPA Amazônia Oriental |
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Belém |
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EcoFoG @ webmaster @ 3 |
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24 |
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Author |
Degen, B.; Roubik, D.W.; Loveless, M.D. |
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Title |
Impact of selective logging and forest fragmentation on the seed cohorts of an insect – pollinated tropical tree : a simulation study |
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Conference Article |
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2002 |
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Modelling and experimental research on genetic processes in tropical and temperate forests |
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108-119 |
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Keywords |
Genetic Diversity; Model; Bees; Animal Pollination; Forest Exploitation; Jacaranda Copaia |
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Kourou - Guyane française |
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Degen, B.; Loveless, M.D.; Kremer, A. |
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18-22 September 2000 |
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EcoFoG @ webmaster @ 58 |
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25 |
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Author |
Gond, V. |
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Title |
Eastern Guiana shield land cover classification using SPOT-4 /VEGETATION instrument |
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Conference Article |
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Year |
2002 |
Publication |
Global Land Cover 2000 conference |
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7 |
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Keywords |
Spot-4; Vegetation; Mapping; Guiana |
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Ispra, Italy |
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18-22 March 2002 |
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Call Number |
EcoFoG @ webmaster @ 65 |
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27 |
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Author |
Heuret, P. |
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Title |
Analyse et modélisation de séquences d'évènements botaniques : applications à la compréhension de la régularité d'expression des processus de croissance, de ramification et de floraison |
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Year |
2002 |
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145 |
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Keywords |
Quercus Rubra; Cecropia Obtusa; Cupressus; Croissance; Floraison; Ramification; Architecture; Modeles Markoviens; Analyse De Sequences; Lb – Papier (I202.Thx.Heu.20002) |
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Abstract |
Une entité botanique peut être considérée comme une succession ordonnée d’entités botaniques d’un niveau d’organisation inférieur (ex : une unité de croissance peut se décrire comme une succession de métamères).
Pour chaque entité botanique, il est possible de mesurer un certain nombre de variables qui traduisent ses caractéristiques (longueur de l’entre-noeud, type de production axillaire). La succession des valeurs prises par une ou plusieurs variables mesurées est alors appelée « séquence d’événements botaniques ». Des travaux récents menés chez des arbres fruitiers et forestiers ont permis de développer une approche statistique adaptée à l’analyse d’échantillons de séquences allant de l'analyse exploratoire à la construction de processus Markoviens. L’objectif de cette thèse est (i) d’évaluer la pertinence d’une approche couplant analyse architecturale et analyse de séquences extraites d’architectures mesurées, (ii) d’apporter une vision et une compréhension nouvelle des phénomènes de croissance, de ramification et de floraison par l’utilisation de modèles statistiques adaptés et (iii) d’analyser les applications possibles des comparaisons de séquences et de modèles dans l’étude de l’influence du milieu et la caractérisation de la plasticité architecturale. Cette problématique est illustrée par (i) l’étude des structures de ramification des différents types d’unités de croissance des pousses annuelles mono- ou polycycliques de chêne rouge d’Amérique (Quercus rubra), (ii) des synchronismes de ramification et de floraison chez Cecropia obtusa et (iii) par l’étude de l’évolution de la phyllotaxie et des modalités de ramification au cours de l’ontogénie sur plusieurs espèces de Cupressus.
Les résultats montrent que la répartition des productions axillaires sur une entité porteuse n'est pas aléatoire mais qu’elle est le plus souvent organisée en une succession de zones homogènes ou montre des motifs répétés à un niveau plus local. Les mécanismes sous-jacents potentiellement responsables des organisations révélées à diverses échelles et l’apport de la prise en compte de l’information structurelle des arbres dans la mesure et l’analyse statistique des données sont discutés. |
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Ph.D. thesis |
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Publisher |
Université Henri Poincaré |
Place of Publication |
Nancy |
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EcoFoG @ webmaster @ 199 |
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28 |
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Author |
Kanashiro, M.; Thompson, I.S.; Degen, B. |
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Title |
Genetic conservation within managed forests in amazonia : dendrogene project |
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Conference Article |
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Year |
2002 |
Publication |
Modelling and experimental research on genetic processes in tropical and temperate forests |
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77-85 |
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Keywords |
Genetic Diversity; Harvesting Planning; Logging Impact; Reproductive Biology; Species Identification; Tropical Trees |
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Kourou - Guyane française |
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Degen, B.; Loveless, M.D.; Kremer, A. |
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18-22 September 2000 |
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EcoFoG @ webmaster @ 124 |
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29 |
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Author |
Le Fol, J. |
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Title |
Etude géomorphologique des sites de Paracou, Crique Plomb, Piste de Saint Elie |
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2002 |
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126 |
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Guyane Francaise Paracou Piste De Saint Elie Crique Plomb Geomorphologie Pedologie Photographies Aeriennes |
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Master's thesis |
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Université Toulouse Le Mirail |
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Toulouse |
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Freycon, Vincent |
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EcoFoG @ webmaster @ 203 |
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30 |
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Author |
Morneau, F. |
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Title |
Effet de la densité des arbres sur la régénération naturelle du Wacapou (Vouacapoua Americana Aublet, Caesalpiniaceae) en Guyane française |
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2002 |
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28 |
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Foret Tropicale Guyanaise Vouacapoua Americana Wacapou Nouragues Densite Des Arbres Adultes Regeneration Naturelle |
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Master's thesis |
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Université Pierre et Marie Curie (ParisVI) |
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Paris |
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Forget, Pierre Michel |
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EcoFoG @ webmaster @ 209 |
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31 |
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Author |
Reynal, V. de; Oliveira, M.C. de; Santos dos Assis, W. |
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Title |
Atlas agraire historique de Maraba |
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Map |
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2002 |
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Cartographie; Maraba; Bresil |
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Act'image |
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Toulouse |
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EcoFoG @ webmaster @ 238 |
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32 |
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