Revue Paralia最新文献

{"title":"Etude de l’hydrodynamique sédimentaire de la lagune de Bizerte","authors":"Mouldi Brahim, Abdelfattah Atoui, Béchir Béjaoui","doi":"10.5150/REVUE-PARALIA.2013.011","DOIUrl":"https://doi.org/10.5150/REVUE-PARALIA.2013.011","url":null,"abstract":"Dans le cadre du projet de recherche MODEM intitule \"Modelisation Operationnelle pour le Developpement des Ecosystemes Marins\", un travail de recherche a ete effectue dans la lagune de Bizerte portant sur l’hydrodynamique sedimentaire. Les analyses granulometriques des sediments de surface, preleves a differentes profondeurs, ont permis d’identifier la nature de ces sediments et de preciser les facteurs et les phenomenes qui interviennent dans leur transport et leur depot. Elles ont montre que les sediments provenant de l’erosion des cotes sont soumis a une dynamique qui est controlee essentiellement par l’action des courants etroitement lies aux vents. Ces courants sont assez importants dans les petites profondeurs au nord et au sud, mais ils sont faibles dans les grandes profondeurs a l’interieur de la lagune. Translated version: Sedimentary hydrodynamics of Bizerte Lagoon Within the framework of the MODEM research project \"operational modeling for marine ecosystem development\", a research study was carried out on the sedimentary hydrodynamics of the Bizerte lagoon. The grain-size distribution analysis of surface sediments, acquired at several depths, allowed to identify the sediment nature and specifying factors and processes involved in their transport and deposition. This study showed that sediments coming from coastal erosion are under a hydrodynamic system, essentially controlled by the effect of currents, which depends on wind. Currents are strong in shallow waters in the northern and southern areas, but weak in deep waters inside the Bizerte lagoon. Keywords: Sediment; Grain-size distribution; Sediment dynamics; Lagoon of Bizerte; Tunisia.","PeriodicalId":202784,"journal":{"name":"Revue Paralia","volume":"298 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132706833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application d’un modèle CFD pour analyser la structure verticale de l’écoulement dans un environnement vagues-courant","authors":"M. Teles, M. Benoit, António A. Pires-Silva","doi":"10.5150/REVUE-PARALIA.2013.010","DOIUrl":"https://doi.org/10.5150/REVUE-PARALIA.2013.010","url":null,"abstract":"L'hydrodynamique de la circulation cotiere resulte de la contribution d'une grande variete de phenomenes (courants de circulation a grande echelle, effets de maree, vagues, action du vent, etc.) qui ont des interactions physiques complexes et des echelles differentes. Parmi ces interactions, nous nous concentrons ici sur l'interaction entre les vagues et le courant, particulierement lorsque le courant presente un cisaillement fort sur la colonne d'eau. Dans le present travail, l'evaluation et l'analyse des interactions vagues-courant est realisee grâce a des simulations numeriques fondees sur les equations de Navier-Stokes en moyenne de Reynolds (Reynolds Averaged Navier Stokes, RANS), appliquees a la modelisation de l'ecoulement complet, a savoir vagues et courant simultanement (i.e. sans decoupler les deux phenomenes). Le solveur CFD avance Code_Saturne (ARCHAMBEAU et al., 2004) est employe a cette fin. Les resultats numeriques sont compares aux donnees experimentales de UMEYAMA (2005). Quatre hauteurs et periodes differentes de vague sont examinees pour chaque cas : (i) vagues seules, (ii) vagues et courant dans le meme sens et (iii) vagues s'opposant au courant. Une etude detaillee des changements induits par les interactions vagues-courant sur les profils verticaux de vitesses horizontales moyennes, de contraintes de Reynolds et de viscosite turbulente est presentee. Translated version: A CFD model application to analyze the vertical structure of flow in the wave-current environment The nearshore hydrodynamics and coastal circulation result from a variety of phenomena involving complex physical interactions with different scales (large scale circulation currents, tidal effects, waves, wind action, etc.). Among these interactions, we focus on the interaction between waves and currents, especially when the current presents a strong shear over the water depth. In the present work, the evaluation and analysis of wave-current interactions is made through numerical simulations based on Reynolds Averaged Navier-Stokes (RANS) equations, applied to the modelling of the complete flow motion, namely waves and currents simultaneously (i.e. without decoupling the two phenomena). The advanced CFD solver Code_Saturne (ARCHAMBEAU et al., 2004) is used for this purpose. Numerical results are compared with experimental data from UMEYAMA (2005). Four different wave heights and wave periods are tested for each case: (i) waves only, (ii) waves following current and (iii) waves opposing current. A detailed study of the modifications linked to wave-current interactions on vertical profiles of mean horizontal velocities, Reynolds stresses and turbulent viscosities, is presented. Keywords: Wave-current interaction; Reynolds stress; Turbulent viscosity; Code_Saturne.","PeriodicalId":202784,"journal":{"name":"Revue Paralia","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129841937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Description non stationnaire de la distribution verticale des sédiments transportés en suspension par les écoulements à surface libre, en présence de dépôt et d’érosion","authors":"Martín Sánchez","doi":"10.5150/REVUE-PARALIA.2013.009","DOIUrl":"https://doi.org/10.5150/REVUE-PARALIA.2013.009","url":null,"abstract":"Cette etude est basee sur des donnees issues de la solution numerique d’une equation de transport 1DV qui ont servi a developper un modele descriptif du profil vertical de la concentration en matieres en suspension, en relation avec l’etude du transport de sediments par les ecoulements a surface libre. Pour un regime sedimentaire non stationnaire sans depot et sans erosion, une premiere description de la repartition verticale de la concentration est proposee. Celle-ci, semblable a l’equation generale du profil de la concentration de la solution stationnaire, inclut un parametre nomme alpha, dont la valeur tend toujours vers sa valeur theorique terminale correspondant au regime stationnaire. En presence de depot ou d’erosion, si les variables du probleme restent constantes et si les echanges solides avec le fond sont proportionnels a la vitesse de chute des sediments multipliee par la concentration au fond, il est constate dans cette etude que le profil de la concentration tend vers une forme terminale. Suivant l’approche retenue, la modification de la forme du profil de la concentration due aux echanges avec le fond est decrite par une fonction incluant un deuxieme parametre designe beta. Le modele complet pour le profil vertical de la concentration en regime non stationnaire avec erosion et depot inclut ainsi, deux parametres adimensionnels, alpha et beta, et un parametre dimensionne correspondant a la concentration de reference. Une stationnarite des parametres alpha et beta est possible avec erosion ou depot, impliquant necessairement la non stationnarite de la concentration de reference. Les variations dans le temps des parametres alpha et beta sont simulees par deux equations phenomenologiques. Un bon ajustement de l’ensemble des formulations proposees a permis d’aboutir a un modele stable tres fiable qui peut permettre d’ameliorer considerablement la precision des modelisations de transport 2DH. Version traducida: Descripcion no estacionaria de la distribucion vertical de los sedimentos transportados en suspension por un flujo con superficie libre, en presencia de deposito y erosion Este estudio esta basado en los resultados obtenidos de la solucion numerica de una ecuacion de transporte de sedimentos 1DV, los cuales han servido para desarrollar un modelo descriptivo del perfil vertical de la concentracion en materias en suspension, esto en relacion con el estudio del transporte de sedimentos en los flujos con superficie libre. Para un regimen sedimentario no estacionario sin deposito y sin erosion, una primera descripcion de la reparticion vertical de la concentracion es propuesta. Esta, que es semejante a la ecuacion general del perfil de la concentracion de la solucion estacionaria, incluye un parametro llamado alfa, cuyo valor tiende siempre hacia su valor teorico terminal correspondiente al regimen estacionario. En presencia de deposito o de erosion, si las variables del problema permanecen constantes y si los intercambios solidos con ","PeriodicalId":202784,"journal":{"name":"Revue Paralia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126118087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Un nouveau modèle couplé vagues-courant 3D : développement et validation","authors":"Anne-Claire Bennis, Fabrice Ardhuin, Tina Odaka, F. Dumas","doi":"10.5150/REVUE-PARALIA.2013.008","DOIUrl":"https://doi.org/10.5150/REVUE-PARALIA.2013.008","url":null,"abstract":"A numerical model coupling the three-dimensional oceanic circulation, thanks to the MARS3D model, and the sea state computed by the WAVEWATCH III model, is developed in order to study the hydrodynamic of the nearshore zone. The main principle of the coupled model based on the coupler PALM and the necessary modifications made for the coupling procedure to both numerical codes are described. First tests in horizontal two-dimension are made and they allowed us to develop a primary version. For three-dimensional flow, we show that the coupled model must solve the quasi-Eulerian velocity. In fact, a coherent analytical form of the wave forcing for the Lagrangian velocity does not exist. This point is illustrated by one example with large errors in comparison with the analytical solution when solving for the","PeriodicalId":202784,"journal":{"name":"Revue Paralia","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127669785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Validation expérimentale d'un modèle double-couche pour des vagues côtières non-linéaires et fortement dispersives","authors":"M. Benoit, Florent Chazel","doi":"10.5150/REVUE-PARALIA.2013.007","DOIUrl":"https://doi.org/10.5150/REVUE-PARALIA.2013.007","url":null,"abstract":"Le modele original propose par les auteurs (CHAZEL et al., 2009) pour les vagues en zone cotiere est mis en œuvre et valide sur deux cas experimentaux. Nous considerons d’abord les experiences de DINGEMANS (1994), etudiant la propagation de vagues regulieres au-dessus d’une barre trapezoidale immergee. Les resultats numeriques demontrent une excellente capacite du modele a reproduire les effets de levee, les interactions fortement non-lineaires, ainsi que la generation puis la propagation de composantes harmoniques d’ordres eleves apres la barre. Ensuite, nous verifions la capacite du modele a propager des vagues irregulieres non-deferlantes sur une bathymetrie plus complexe (essai 26 de BECQ-GIRARD et al., 1999). L’analyse et la comparaison des spectres de variance montrent que les resultats du modele sont egalement en tres bon accord avec les mesures experimentales. Abstract: The new model recently proposed by the authors (CHAZEL et al., 2009) to simulate waves in the coastal zone is applied and validated on two experimental cases. Firstly the set of experiments by DINGEMANS (1994) is considered, with the propagation of regular waves over a submerged trapezoidal bar. The numerical results show the excellent capabilities of the model to reproduce the shoaling effects, as well as the generation and the further propagation of higher harmonics after the bar. Then we check the ability of the model to propagate irregular non-breaking waves over a more complex bottom profile (experiment 26 by BECQ-GIRARD et al., 1999). The analysis and comparison of variance spectra show that the model results are also in very good agreement with experimental measurements. Keywords: Waves, Nonlinear waves, Dispersive waves, Coastal waves, Wave models, Boussinesq-type model, Two-layer modelling technique.","PeriodicalId":202784,"journal":{"name":"Revue Paralia","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133624008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trois siècles d’histoire hydro-sédimentaire et écologique du lac de Grand-Lieu, conséquences pour la gestion hydraulique","authors":"É. Mercier, Martín Sánchez, P. Vacher","doi":"10.5150/REVUE-PARALIA.2013.006","DOIUrl":"https://doi.org/10.5150/REVUE-PARALIA.2013.006","url":null,"abstract":"Dans un premier temps, les histoires hydraulique et sedimentaire du lac de Grand-Lieu, sont retracees depuis le debut du XVIIIeme siecle. Les evolutions mises en evidence, fortement induites par les activites humaines, se sont traduites, selon les epoques, par des modifications ecologiques positives ou negatives. Dans un second temps, nous montrerons que la tres forte regression de la biodiversite du lac que l’on constate depuis le debut des annees 1960, s’inscrit dans son evolution hydraulique et sedimentaire. En conclusion nous proposerons des pistes pour une gestion, notamment hydraulique, plus en phase avec les necessites ecologiques. Abstract: In the first part, the hydraulic and sedimentary history of Grand-Lieu Lake, are traced from the early eighteenth century. Some ecological changes, positive or negative according to the times, could be distinguished. These evolutions are strongly induced by human activities. In the second part, we show that the strong decline of the biodiversity observed since the early 1960s, is related to the hydraulic and sedimentary evolution. In conclusion, we propose ways for a hydraulic management of the lake more in line with ecological requirements.","PeriodicalId":202784,"journal":{"name":"Revue Paralia","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124824557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Valorisation des sédiments fluviaux traités en vue d'une utilisation en génie civil","authors":"Zhibo Duan, Zoubeir Lafhaj, I. B. Ali, Sébastien Ducellier","doi":"10.5150/REVUE-PARALIA.2013.005","DOIUrl":"https://doi.org/10.5150/REVUE-PARALIA.2013.005","url":null,"abstract":"L’objectif de cet article est d’etudier la possibilite de valoriser, apres traitement, des sediments fluviaux pollues, preleves de la region de Dampremy en Belgique, dans les materiaux de genie civil. L’article se decompose en trois parties : la premiere partie est consacree a la presentation du procede de traitement qui a ete retenu pour detruire les polluants organiques et stabiliser les polluants inorganiques contenus dans les sediments. La deuxieme partie developpe la demarche scientifique et la methodologie experimentale retenue. Enfin, la troisieme partie, est consacree a la presentation et a l’analyse des principaux resultats de valorisation des sediments traites dans les materiaux de genie civil. La formulation retenue se compose de 75% de sediments traites, de sable, de ciment et de la chaux vive. Deux voies de valorisation possibles : en materiaux autocompactant et en couche de forme.","PeriodicalId":202784,"journal":{"name":"Revue Paralia","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125135619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Benthic quality evaluation of immersion zones of sediments dredging","authors":"Pascal Grégoire, N. Abriak, Samira Brakni, R. Achour","doi":"10.5150/REVUE-PARALIA.2013.003","DOIUrl":"https://doi.org/10.5150/REVUE-PARALIA.2013.003","url":null,"abstract":"Dredging operations pose the problem of sediment deposits to be evacuated by taking into account economic incidences and environmental aspects related to environmental protection. Coastal sediments are high biodiversity zones, where a multitude of living organisms have a special relationship with their substrate. An addition of exogenous materials has an impact on the natural equilibrium of the environment, notably during the transfer of contaminants on immersion zones, affecting species and the ecosystem. The objective of environmental assessment process is to estimate the potential risk of exposure upon ecosystems by integrating the benthic communities assessment. The evaluation of biological impacts in immersion zones helps to apprehend better the risk of using operational tools of appreciation. The aim of this paper is to present an expertise approach based upon index for assessing coastal endofauna. This index makes it possible to know sediment biological quality by making more transparent the environmental assessment process potentially influencing the deposits method and the monitoring of dredging operations in a sustainable development context. Study results show that sediments immersion effect is low and has a short duration on immersion zones having strong currents allowing rapid sediments resuspension. Version traduite : Evaluation de la qualite benthique des zones d’immersion des sediments de dragage","PeriodicalId":202784,"journal":{"name":"Revue Paralia","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126334545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Caractérisation Numérique et Expérimentale des Interactions entre deux Hydroliennes","authors":"Paul Mycek, B. Gaurier, G. Germain, Corentin Lothodé, G. Pinon, E. Rivoalen","doi":"10.5150/REVUE-PARALIA.2013.002","DOIUrl":"https://doi.org/10.5150/REVUE-PARALIA.2013.002","url":null,"abstract":"The implantation and deployment of marine current turbine arrays depend on the understanding of their interactions. Based on a priori suggestions about the layout of marine energy converter arrays, we propose to highlight interactions effects between two horizontal axis marine current turbines, in open water. Experimental trials were run in IFREMER’s wave and current flume tank in Boulognesur-Mer (France), on marine current turbine models. Our study focuses on setups were the second turbine is axially aligned, at different distances, in the wake of the first one. Interaction effects are pointed out both in terms of performance and wake characterisation by means of a comparison with results on a single turbine. This study shows that the downstream turbine behaviour is deeply influenced by the upstream turbine wake. We also present numerical results obtained on a single turbine from our tri-dimensional numerical software, which is developed at the Laboratoire Ondes et Milieux Complexes, Le Havre (France). Those numerical results are validated by the comparison with the experiments, which allows us to foresee the modelling of several turbines and thus of turbine farms with a more complex layout.","PeriodicalId":202784,"journal":{"name":"Revue Paralia","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128413982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"NOTA TÉCNICA - Reparación del emisario de Las Palmas de Gran Canaria. Parte II: simulaciones de vertido","authors":"J. Aguirre, Jon Vilches Sarasate, María D. Afonso Correa, Marc Piedeleu","doi":"10.5150/REVUE-PARALIA.2012.007","DOIUrl":"https://doi.org/10.5150/REVUE-PARALIA.2012.007","url":null,"abstract":"Inicialmente la obra de reparacion del emisario de Las Palmas de Gran Canaria se habia programado sin incluir el tramo difusor. Esta nota tecnica que describe una serie de simulaciones de diluciones de vertido, asociadas a diferentes situaciones del emisario durante su reparacion, permitio demostrar a la administracion la utilidad de un tramo difusor. El exito de este estudio de simulaciones fue la claridad en la presentacion de los resultados, de manera que resulto evidente a la administracion los beneficios del tramo difusor respecto al incremento de tiempo y de presupuesto en la obra. Para obtener este resultado se requiere un conocimiento profundo de los particulares de la obra maritima y de la teoria academica aplicada, y ademas es necesario un contacto directo y continuo con los responsables de la administracion. Estas dos notas tecnicas (Parte I y Parte II) muestran una via por la cual, a nuestro juicio, se deberian mover las Universidades y Centros de Investigacion, para aumentar su utilidad directa en la sociedad. Version traduite : NOTE TECHNIQUE - Reparation de l’emissaire de Las Palmas de Canaria. Partie II : simulations de rejet Initialement, le chantier de reparation de l’emissaire de Las Palmas de Canaria avait ete programme pour reparer l’emissaire sous-marin sans inclure un troncon diffuseur. Cette note technique sur les simulations des dilutions des rejets associees a differents etats de l’emissaire de Las Palmas de Gran Canaria pendant sa reparation, a permis de prouver a l’administration l’utilite d’un troncon diffuseur. La reussite de cette etude a reside dans la clarte de la presentation des resultats, de telle sorte que les effets benefiques apportes par le troncon diffuseur ont paru evidents a l’administration malgre les consequences sur la duree et le budget du chantier. L’obtention d’un tel resultat requiert une connaissance approfondie des specificites du chantier maritime et de ses aspects theoriques, et necessite un contact direct et continu avec les responsables de l’administration. Ces deux notes techniques (Partie I et Partie II) montrent un chemin a suivre, selon notre point de vue, par les universites et les centres de recherche, pour augmenter leur utilite directe dans la societe. Mots-cles : Emissaire sous-marin; Multi-diffuseur; Dilution; Modelisation numerique; Champ proche; Champ eloigne; CORMIX.","PeriodicalId":202784,"journal":{"name":"Revue Paralia","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114731354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}