13,427 results on '"Ocean University of China"'
Search Results
2. A Skewness-based Analysis and Numerical Simulations on Tidal Asymmetries, Dynamics, and Suspended Sediment Transport
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Wang, Xiao Hua, Physical, Environmental & Mathematical Sciences, UNSW Canberra, UNSW, Kiss, Andrew, Physical, Environmental & Mathematical Sciences, UNSW Canberra, UNSW, Bao, Xianwen, Ocean University of China, Song, Dehai, Physical, Environmental & Mathematical Sciences, UNSW Canberra, UNSW, Wang, Xiao Hua, Physical, Environmental & Mathematical Sciences, UNSW Canberra, UNSW, Kiss, Andrew, Physical, Environmental & Mathematical Sciences, UNSW Canberra, UNSW, Bao, Xianwen, Ocean University of China, and Song, Dehai, Physical, Environmental & Mathematical Sciences, UNSW Canberra, UNSW
- Abstract
This thesis, firstly, provides a general framework in which any number of tidal constituents can be included in the identification of those constituents responsible for asymmetry in any tidal time series. This new method has two features which greatly simplify the attribution of asymmetry to particular constituents: 1) only combinations of two or three constituents can contribute to skewness, regardless of how many constituents are significant in the time series; and 2) of those combinations, only the few meeting frequency conditions will give rise to long-term mean asymmetry.Secondly, it illustrates the impact of tidal flat reclamation on tidal dynamics (including tidal asymmetry) in the Bohai Sea, Yellow Sea, and East China Sea (BYECS). Different tidal patterns, due to tidal energy redistribution, are shown when tidal flats around the BYECS are removed. Far-field effects on tidal dynamics occur on the west Korean coast when reclamation is carried out over the Jiangsu coastal regions in China. In turn, reclamation on the west coast of Korea may generate far-field effects along the Chinese coast. Furthermore, reclamation in the BYECS can result in a rise in tidal amplitude and onshore sediment transport. The former may enhance coastal hazards such as storm surges; the latter may result in severe siltation.Finally, it explores the suspended fine sediment transport in a newly completed man-made Deepwater Navigation Channel (DNC) in the North Passage of the Yangtze River Estuary, China. Observations show strong spring-neap tidal asymmetric patterns on suspended sediment transport in the DNC during the dry season in 2009, when the landward transport is determined by the tidal pumping effect on spring tides, but a shear effect on neap tides. Model simulations indicate the turbid water intruded into the DNC is driven by flux from the shoals outside the two dikes. Surface wave breaking relieves the sediment trapping in the DNC, but the bottom wave-current interaction enhan
- Published
- 2013
3. Interpreting C-band sea surface depolarization observations
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Lab-STICC_TB_CID_TOMS ; Département Image et Traitement Information (ITI) ; Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) ; CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Télécom Bretagne - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - ENSTA Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Ecole Nationale d'Ingénieurs de Brest - CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - ENSTA Bretagne - Ecole Nationale d'Ingénieurs de Brest, Institut français de recherche pour l'exploitation de la mer (IFREMER) ; Ifremer, Collecte Localisation Satellites (CLS) ; entreprise, Lab-STICC_TB_CID_TOMS ; Traitement Algorithmique et Matériel de la Communication, de l'Information et de la Connaissance (TAMCIC) ; CNRS - Ecole Nationale Supérieure des Télécommunications de Bretagne - CNRS - Ecole Nationale Supérieure des Télécommunications de Bretagne - GET / ENST Bretagne ; Ecole Nationale Supérieure des Télécommunications de Bretagne - Télécom Bretagne Dept. ITI ; Télécom Bretagne - Télécom Bretagne - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) ; CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Télécom Bretagne - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Département Image et Traitement Information (ITI) ; Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Département Signal et Communications (SC) ; Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) ; CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Télécom Bretagne - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - ENSTA Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Ecole Nationale d'Ingénieurs de Brest - CNRS - ENSTA Bretagne - Ecole Nationale d'Ingénieurs de Brest, Ocean University of China, Wang, Bo, Chapron, Bertrand, Mouche, Alexis, MERCIER, Grégoire, GARELLO, René, HE, Mingxia, Lab-STICC_TB_CID_TOMS ; Département Image et Traitement Information (ITI) ; Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) ; CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Télécom Bretagne - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - ENSTA Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Ecole Nationale d'Ingénieurs de Brest - CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - ENSTA Bretagne - Ecole Nationale d'Ingénieurs de Brest, Institut français de recherche pour l'exploitation de la mer (IFREMER) ; Ifremer, Collecte Localisation Satellites (CLS) ; entreprise, Lab-STICC_TB_CID_TOMS ; Traitement Algorithmique et Matériel de la Communication, de l'Information et de la Connaissance (TAMCIC) ; CNRS - Ecole Nationale Supérieure des Télécommunications de Bretagne - CNRS - Ecole Nationale Supérieure des Télécommunications de Bretagne - GET / ENST Bretagne ; Ecole Nationale Supérieure des Télécommunications de Bretagne - Télécom Bretagne Dept. ITI ; Télécom Bretagne - Télécom Bretagne - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) ; CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Télécom Bretagne - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Département Image et Traitement Information (ITI) ; Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Département Signal et Communications (SC) ; Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) ; CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Télécom Bretagne - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - ENSTA Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Ecole Nationale d'Ingénieurs de Brest - CNRS - ENSTA Bretagne - Ecole Nationale d'Ingénieurs de Brest, Ocean University of China, Wang, Bo, Chapron, Bertrand, Mouche, Alexis, MERCIER, Grégoire, GARELLO, René, and HE, Mingxia
- Abstract
International audience, So far, sea surface scattering polarization sensitivity is still difficult to fully understand. To gain understanding, full polarization C-band data spectral analysis is considered and the de-polarization (HV) and polarization ratio (PR) are jointly analysed with in-situ wind and wave observations.
4. Sea surface radar backscatter simulation based on eigenvector decomposition
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Lab-STICC_TB_CID_TOMS ; Département Image et Traitement Information (ITI) ; Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) ; CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Télécom Bretagne - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - ENSTA Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Ecole Nationale d'Ingénieurs de Brest - CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - ENSTA Bretagne - Ecole Nationale d'Ingénieurs de Brest, Institut français de recherche pour l'exploitation de la mer (IFREMER) ; Ifremer, Lab-STICC_TB_CID_TOMS ; Traitement Algorithmique et Matériel de la Communication, de l'Information et de la Connaissance (TAMCIC) ; CNRS - Ecole Nationale Supérieure des Télécommunications de Bretagne - CNRS - Ecole Nationale Supérieure des Télécommunications de Bretagne - GET / ENST Bretagne ; Ecole Nationale Supérieure des Télécommunications de Bretagne - Télécom Bretagne Dept. ITI ; Télécom Bretagne - Télécom Bretagne - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) ; CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Télécom Bretagne - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Département Image et Traitement Information (ITI) ; Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Département Signal et Communications (SC) ; Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) ; CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Télécom Bretagne - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - ENSTA Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Ecole Nationale d'Ingénieurs de Brest - CNRS - ENSTA Bretagne - Ecole Nationale d'Ingénieurs de Brest, Ocean University of China, Wang, Bo, Chapron, Bertrand, MERCIER, Grégoire, GARELLO, René, HE, Mingxia, Lab-STICC_TB_CID_TOMS ; Département Image et Traitement Information (ITI) ; Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) ; CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Télécom Bretagne - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - ENSTA Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Ecole Nationale d'Ingénieurs de Brest - CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - ENSTA Bretagne - Ecole Nationale d'Ingénieurs de Brest, Institut français de recherche pour l'exploitation de la mer (IFREMER) ; Ifremer, Lab-STICC_TB_CID_TOMS ; Traitement Algorithmique et Matériel de la Communication, de l'Information et de la Connaissance (TAMCIC) ; CNRS - Ecole Nationale Supérieure des Télécommunications de Bretagne - CNRS - Ecole Nationale Supérieure des Télécommunications de Bretagne - GET / ENST Bretagne ; Ecole Nationale Supérieure des Télécommunications de Bretagne - Télécom Bretagne Dept. ITI ; Télécom Bretagne - Télécom Bretagne - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) ; CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Télécom Bretagne - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Département Image et Traitement Information (ITI) ; Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Département Signal et Communications (SC) ; Télécom Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC) ; CNRS - Université de Bretagne Occidentale (UBO) - Université de Bretagne Sud (UBS) - Télécom Bretagne - Institut Supérieur des Sciences et Technologies de Brest (ISSTB) - ENSTA Bretagne - Institut Mines-Télécom - PRES Université Européenne de Bretagne (UEB) - Ecole Nationale d'Ingénieurs de Brest - CNRS - ENSTA Bretagne - Ecole Nationale d'Ingénieurs de Brest, Ocean University of China, Wang, Bo, Chapron, Bertrand, MERCIER, Grégoire, GARELLO, René, and HE, Mingxia
- Abstract
International audience, A simulation of the radar backscatter from the complex sea surface has been established based on the eigenvector invariant property under rotations about the line of sight. The complex sea surface may have stationary or anchoring man-made targets as well as may be contaminated by surface covering layers such as oil spill. To better understand the scattering mechanism on the radar imagery from sea surface, we view the latter as a surface abnormal modulation (Mab) using a physical scattering method based on the target decomposition (TD) theorem.
5. Diuron effects on photosynthesis and vertical migration of microphytobenthos: Potential rapid bioassessment of herbicide toxicity in coastal sediments
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Guo-Ying Du, Shuai Che, Johann Lavaud, Xue-Feng Zhong, Christine Dupuy, College of Marine Life Science, Ocean University of China, Ocean University of China (OUC), LIttoral ENvironnement et Sociétés (LIENSs), La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs), Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS), and Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
0106 biological sciences ,Chlorophyll ,microphytobenthos ,[SDE.MCG]Environmental Sciences/Global Changes ,Quantum yield ,Intertidal zone ,010501 environmental sciences ,Aquatic Science ,Oceanography ,Photosynthesis ,01 natural sciences ,chemistry.chemical_compound ,Herbicide toxicity ,[SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems ,Fluorometry ,vertical migration ,[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment ,Diel vertical migration ,Bioassessment ,0105 earth and related environmental sciences ,Quenching (fluorescence) ,photosynthesis ,bioassessment Heading: diuron effects on microphytobenthos ,Chemistry ,Herbicides ,010604 marine biology & hydrobiology ,Microphytobenthos ,Pollution ,Electron transport chain ,diuron ,13. Climate action ,Diuron ,Environmental chemistry ,Toxicity ,herbicide toxicity ,Vertical migration ,[SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology - Abstract
International audience; The effects of herbicide diuron on photosynthesis and vertical migration of intertidal microphytobenthos (MPB) assemblages were investigated using chlorophyll fluorometry. The results shown diuron ≤ 60 μgꞏL-1 had no obvious effect on MPB vertical migration during 24 h indicated by consistent rhythm. Low concentration of 10 μgꞏL-1 diuron had no significant influence on MPB photosynthesis throughout, however, high concentrations of 40, 50, and 60 μgꞏL-1 had significant impacts exhibited by decreased parameters of maximum relative electron transport rate (rETRmax), maximal PS II quantum yield (Fv/Fm) and non-photochemical quenching (NPQ). For middle concentrations of 20 and 30 μgꞏL-1 , above decreased 3 parameters recovered sooner or later after 2 h or 16.5 h. Comparatively, rETRmax, Fv/Fm and NPQ are concentration dependent and more sensitive than other parameters in assessing diuron toxicity. This study revealed the potential of using MPB assemblages and chlorophyll fluorometry for rapid assessing diuron toxicity in coastal sediments.
- Published
- 2021
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6. Pattern formation of small multi-AUV system based on optical sensors
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Xie, Ze-xiao, Wang, Xiaomin, Ocean University of China (College of Engineering), Ocean University of China, Lab-STICC_ENSTAB_CID_PRASYS, Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC), École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), and Institut Mines-Télécom [Paris] (IMT)
- Subjects
Multi-AUV system with homogeneous structure ,[SPI]Engineering Sciences [physics] ,Formation control ,Planar pyramid pattern ,Collision avoidance strategy ,Underwater vision servoing ,Local information ,[SPI.AUTO]Engineering Sciences [physics]/Automatic - Abstract
International audience; Due to the searching tasks of the small and/or color objects on the seabed, the multi-AUV systems with the optical sensors have become a research hotspot. To build a given pattern formation (a planar pyramid pattern) and put all the small homogeneous AUV units together, based on the relative positions got from the optical sensors and the absolute orientation evaluated by the compass, a local position-based control method is proposed. This method includes two parts: 1) a neighbor-check mechanism is given to distinguish the AUVs' IDs; 2) a collision avoidance strategy with complexity (n log n) is proposed to optimize the position and gesture of a planar pyramid pattern, and the non-intercrossing linear trajectories for each AUV is planed. The proposed control method is tested in a realistic obstacle-free deep-sea simulation environment established in Blender. 4 ~ 7 AUVs (CISCREA) are used to build the planar pyramid pattern repeatedly. The results verify the feasibility and stability of the proposed control method.
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- 2020
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7. Formation building and collision avoidance for a fleet of NAOs based on optical sensor with local positions and minimum communication
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Xiaomin Wang, Benoit Clement, Benoit Zerr, Hélène Thomas, Lorenzo Benozzi, Zexiao Xie, Lab-STICC_ENSTAB_CID_PRASYS, Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC), École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT), Ocean University of China (College of Engineering), Ocean University of China, École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne), and Département STIC [Brest] (STIC)
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Formation building ,General Computer Science ,Computer science ,Real-time computing ,020207 software engineering ,Image processing ,Graph theory ,02 engineering and technology ,A Fleet of NAOs ,Local positions ,[SPI.AUTO]Engineering Sciences [physics]/Automatic ,Low demand ,Compass ,Obstacle ,Optical sensor ,0202 electrical engineering, electronic engineering, information engineering ,Visual compass ,Robot ,[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing ,Time complexity ,Information exchange - Abstract
International audience; Multi-robot system has become a research hotspot because of low demand on the sensors’ accuracy, high reliability, and high efficiency. To put all the robots together, formation control is a crucial problem. In this paper, we propose a local position-based method to plan trajectories and build a pyramid pattern for a fleet of NAOs in the obstacle-free environment by refering to the position-based method and giving an O(n log n) collision avoidance strategy inspired from one graph theory, where the local positions are estimated from optical sensors. To get the local positions, an integrated image processing method is developped. Firstly a mask-base is generated to store the features of NAOs, and a cross-correlation method is introduced to recognize the NAO. Subsequently, the distance and angle models are proposed to get the local information from a single image. Then, a visual compass is introduced to obtain the orientation of one NAO. After the local information exchange by the WiFi communication, a neighbor-check method is put foward to distinguish the homogeneous NAOs (all the NAOs look like the same). Further, a common frame is constructed as an artificial global frame, and straight non-intercrossing trajectories are planned according to the O(n log n) collision avoidance strategy. At last, the performance of our proposed local position-based method is verified by the simulations with up to 15 robots and the indoor experiments with 3 NAOs in a real environment. The convergence of the method has been demonstrated in both obstacle-free and static obstacle environments.
- Published
- 2019
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8. Biological modification of mechanical properties of the sea surface microlayer, influencing waves, ripples, foam and air-sea fluxes
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Ian R. Jenkinson, Florence Elias, Seuront Laurent, Haibing Ding, Agence de conseil et de recherche océanographiques, CAS Institute of Oceanology (IOCAS), Chinese Academy of Sciences [Beijing] (CAS), Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG), Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Ocean University of China (College of Engineering), Ocean University of China, Matière et Systèmes Complexes (MSC (UMR_7057)), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), UPMC - Faculté de Physique (UFR 925), Université Pierre et Marie Curie - Paris 6 (UPMC), Université du Littoral Côte d'Opale-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Institut national des sciences de l'Univers (INSU - CNRS), Université de Lille-Université du Littoral Côte d'Opale-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Nord]), and Matière et Systèmes Complexes (MSC)
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0106 biological sciences ,Atmospheric Science ,Environmental Engineering ,010504 meteorology & atmospheric sciences ,Sea foam ,Soil science ,Oceanography ,01 natural sciences ,Sea surface microlayer ,Rheology ,Phytoplankton ,Organic matter ,14. Life underwater ,Surface layer ,lcsh:Environmental sciences ,0105 earth and related environmental sciences ,organic matter ,chemistry.chemical_classification ,lcsh:GE1-350 ,[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere ,Molecular diffusion ,Ecology ,010604 marine biology & hydrobiology ,Geology ,Geotechnical Engineering and Engineering Geology ,Sea-surface microlayer ,rheology ,gas exchange reduction ,phytoplankton ,foam ,chemistry ,13. Climate action ,[SDE]Environmental Sciences ,Environmental science ,Seawater - Abstract
International audience; Gas exchange reduction (GER) at the air-sea interface is positively related to the concentration of organic matter (OM) in the top centimetre of the ocean, as well as to phytoplankton abundance and primary production. The mechanisms relating OM to GER remain unclear, but may involve mechanical (rheological) damping of turbulence in the water immediately below the surface microlayer, damping of ripples and blocking of molecular diffusion by layers of OM, as well as electrical effects. To help guide future research in GER, particularly of CO2, we review published rheological properties of ocean water and cultures of phytoplankton and bacteria in both 3D and 2D deformation geometries, in water from both the surface layer and underlying water. Production of foam modulates air-sea exchange of many properties and substances, perhaps including climate-changing gases such as CO2. We thus also review biological modulation of production and decay of whitecaps and other sea foam. In the ocean literature on biological production of OM, particularly that which associates with the sea surface, the terms “surfactant” and “surface-active” have been given a variety of meanings that are sometimes vague, and may confuse. We therefore propose a more restricted definition of these terms in line with usage in surface science and organic chemistry. Finally, possible changes in OM-modulated GER are presented in relation to predicted global environmental changes..
- Published
- 2018
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9. Microphytobenthos and an indicator of environmental quality status in intertidal flats:Case study of coastal ecosystem in Pertuis Charentais, France
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Christine Dupuy, Guo-Ying Du, HongMei Yan, College of Marine Life Science, Ocean University of China, Ocean University of China (OUC), LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs), and Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)
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0106 biological sciences ,010504 meteorology & atmospheric sciences ,microphytobenthos ,[SDV]Life Sciences [q-bio] ,Pertuis Charentais ,Intertidal zone ,Aquatic Science ,Intertidal ecology ,Oceanography ,01 natural sciences ,intertidal ecosystem ,Organic matter ,Ecosystem ,14. Life underwater ,0105 earth and related environmental sciences ,chemistry.chemical_classification ,Biomass (ecology) ,bioassessment ,biology ,Ecology ,010604 marine biology & hydrobiology ,Sediment ,15. Life on land ,biology.organism_classification ,chemistry ,13. Climate action ,Navicula ,Environmental science ,community ,Species richness ,France - Abstract
International audience; Microphytobenthos communities of different sediment types were investigated in intertidal flats of the coastal area around La Rochelle (Pertuis Charentais, France) in July 2014 and January 2015. Biotic variables of biomass, abundance and species composition of microphytobenthos were evaluated together with environmental variables, including irradiance, sediment temperature, grains size, pore water salinity, pH, nutrients, organic matter, water content and heavy metal concentrations in the sediment. The relationships between biotic and environmental parameters showed that: (1) the microphytobenthos biomass and community structures showed significant differences among different sediment types; (2) variation in the microphytobenthos communities were significantly correlated with environmental variables, especially with the heavy metals, grain size, irradiance, pore water salinity, organic matter and concentration of PO4 3+ and Si(OH)4; (3) the species number and richness were both significantly correlated with organic matter, and (4) the species Entomoneis corrugate, Navicula aitchelbee and Gyrosigma cf.limosum were positively correlated to heavy metals, and so were N. phylleptosoma, Surirella brebissonii to Si(OH)4 and NH4 + concentrations, and G. acuminatum and S. brebissonii to PO4 3+ and NH4 +. It is suggested that the spatial variation in biodiversity of microphytobenthos may reflect environmental quality status in coastal intertidal ecosystems.
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- 2017
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10. Pattern formation for a fleet of AUVs based on optical sensor
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Benoit Zerr, Hélène Thomas, Benoit Clement, Xiaomin Wang, Zexiao Xie, Lab-STICC_ENSTAB_CID_PRASYS, Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC), École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT), Pôle STIC_OSM, École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne), Ocean University of China (College of Engineering), Ocean University of China, Institut Mines-Télécom [Paris] (IMT)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-Institut Mines-Télécom [Paris] (IMT)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), and Institut Mines-Télécom [Paris] (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)
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0209 industrial biotechnology ,Engineering ,Orientation (computer vision) ,business.industry ,Frame (networking) ,Process (computing) ,0102 computer and information sciences ,02 engineering and technology ,Visual servoing ,01 natural sciences ,[SPI.AUTO]Engineering Sciences [physics]/Automatic ,020901 industrial engineering & automation ,010201 computation theory & mathematics ,Compass ,Pyramid ,Trajectory ,Robot ,Computer vision ,Artificial intelligence ,business - Abstract
International audience; —During the past decades, multi-robot systems have been studied deeply and have demonstrated their advantages in conducting autonomous missions, particularly in underwater environment. When using multiple robots, high cost single sensor can be replaced by many coordinated low cost sensors, such as optical sensors used in our work for acquiring relevant data and coordinating the fleet of robots. In this paper, we propose a coordination algorithm for pattern formation (the shape of the fleet), which includes a new predefined pyramid pattern independent on the number of robots and an associated formation control strategy for building and maintaining this pyramid without collision among robots and without external assistant in non-obstacle situation. The formation control strategy consists of three steps: (1) a common frame is built after the exchange of local information extracted from visual servoing (VS) and compass of each robot; (2) a pyramid frame is established from the distribution of robots, and whose orientation is defined by one of the two following methods: one based on principal component analysis (PCA) and the other one based on an intermediate circle pattern (CP); (3) the kernel part is the collision avoidance strategy (CA) which is realized by optimally matching up positions in the distribution and the pyramid, and planning the straight non-intercrossed trajectories. At last, robots build the pyramid along the straight trajectory. During the whole process, except the information exchange for establishing the common frame, robots do not need communication as they have the same algorithms. Until now the performance of the formation control strategy is demonstrated with 4 to 6 robots in Blender based on dynamic equations of real underwater robots.
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- 2017
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11. Machine learning for accelerating process‐based computation of land biogeochemical cycles
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Yan Sun, Daniel S. Goll, Yuanyuan Huang, Philippe Ciais, Ying‐Ping Wang, Vladislav Bastrikov, Yilong Wang, Ocean University of China (OUC), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Modélisation des Surfaces et Interfaces Continentales (MOSAIC), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), CSIRO Marine and Atmospheric Research [Aspendale], Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO), and Chinese Academy of Sciences [Beijing] (CAS)
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Global and Planetary Change ,Ecology ,[SDU]Sciences of the Universe [physics] ,Environmental Chemistry ,General Environmental Science - Abstract
Global change ecology nowadays embraces ever-growing large observational datasets (big-data) and complex mathematical models that track hundreds of ecological processes (big-model). The rapid advancement of the big-data-big-model has reached
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- 2023
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12. Robust Heading Control and its Application toCiscrea Underwater Vehicle
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Yang, Rui, Clement, Benoit, Mansour, Ali, LI, Huajun, Li, Ming, Lab-STICC_ENSTAB_CID_IHSEV, Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC), École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Télécom Bretagne-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Université européenne de Bretagne - European University of Brittany (UEB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Télécom Bretagne-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Université européenne de Bretagne - European University of Brittany (UEB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS), Pôle STIC_OSM, École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne), Ocean University of China (College of Engineering), Ocean University of China, Lab-STICC_ENSTAB_CID_PRASYS, École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT), Lab-STICC_ENSTAB_CACS_COM, Pôle STIC_IDM, Biomathematics Research Centre, University of Canterbury [Christchurch], and ISME
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Computational Fluid dynamics ,Underwater Robotics ,[SPI.AUTO]Engineering Sciences [physics]/Automatic - Abstract
International audience; Deep inside the ocean, the earth magnetic signalis one of the merely existing information that tells the headingof robots with very good cost efficiency. Therefore, this paperfocuses on the AUV (Autonomous Underwater Vehicle) headingcontrol problem using only one magnetic compass as feedbacksensor. In this application, we address AUV modeling and controlissues simultaneously. Because of quadratic damping factor,underwater vehicle hydrodynamic model is nonlinear. In addition,unmodeled dynamics, parameter variations and environmentaldisturbances create significant uncertainties between the nominalAUV model and the reality. Finally, sensor noise, signal delay aswell as unmeasured states also affect the stability and controlperformance of AUV motions. In order to handle these issueswith improved AUV observation quality and navigation ability,we propose a CFD (Computational Fluid Dynamics) model basedH1 robust control scheme.Without loss of generality, the robustheading controller was implemented and validated in the seaon low-mass and complex-shaped Ciscrea AUV. Simulation andsea experimental results of both PID (Proportional IntegralDerivative) and robust heading controller are analysed.
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- 2015
13. Kinetics, Products, and Brown Carbon Formation by Aqueous-Phase Reactions of Glycolaldehyde with Atmospheric Amines and Ammonium Sulfate
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Alyssa A. Rodriguez, Michael A. Rafla, Hannah G. Welsh, Elyse A. Pennington, Jason R. Casar, Lelia N. Hawkins, Natalie G. Jimenez, Alexia de Loera, Devoun R. Stewart, Antonio Rojas, Matthew-Khoa Tran, Peng Lin, Alexander Laskin, Paola Formenti, Mathieu Cazaunau, Edouard Pangui, Jean-François Doussin, David O. De Haan, University of San Diego (USD), Harvey Mudd College, Ocean University of China (OUC), Department of Chemistry [West Lafayette], Purdue University [West Lafayette], Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)), and Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
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[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] ,Aerosols ,Glycine ,Imidazoles ,Water ,Acetaldehyde ,Glyoxal ,Pyruvaldehyde ,Carbon ,[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry ,Methylamines ,Ammonia ,Ammonium Sulfate ,Amines ,Physical and Theoretical Chemistry - Abstract
International audience; Glycolaldehyde (GAld) is a C2 water-soluble aldehyde produced during the atmospheric oxidation of isoprene and many other species and is commonly found in cloudwater. Previous work has established that glycolaldehyde evaporates more readily from drying aerosol droplets containing ammonium sulfate (AS) than does glyoxal, methylglyoxal, or hydroxyacetone, which implies that it does not oligomerize as quickly as these other species. Here, we report NMR measurements of glycolaldehyde’s aqueous-phase reactions with AS, methylamine, and glycine. Reaction rate constants are smaller than those of respective glyoxal and methylglyoxal reactions in the pH range of 3–6. In follow-up cloud chamber experiments, deliquesced glycine and AS seed particles were found to take up glycolaldehyde and methylamine and form brown carbon. At very high relative humidity, these changes were more than 2 orders of magnitude faster than predicted by our bulk liquid NMR kinetics measurements, suggesting that reactions involving surface-active species at crowded air–water interfaces may play an important role. The high-resolution liquid chromatography–electrospray ionization–mass spectrometric analysis of filter extracts of unprocessed AS + GAld seed particles identified sugar-like C6 and C12 GAld oligomers, including proposed product 3-deoxyglucosone, with and without modification by reactions with ammonia to diimine and imidazole forms. Chamber exposure to methylamine gas, cloud processing, and simulated sunlight increased the incorporation of both ammonia and methylamine into oligomers. Many C4–C16 imidazole derivatives were detected in an extract of chamber-exposed aerosol along with a predominance of N-derivatized C6 and C12 glycolaldehyde oligomers, suggesting that GAld is capable of forming brown carbon SOA
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- 2022
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14. Modeling of a Complex-Shaped Underwater Vehicle for Robust Control Scheme
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Ali Mansour, Benoit Clement, Ming Li, Nailong Wu, Rui Yang, Lab-STICC_ENSTAB_CID_IHSEV, OSM, Département STIC [Brest] (STIC), École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne), Lab-STICC_ENSTAB_CID_PRASYS, Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC), Institut Mines-Télécom [Paris] (IMT)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-Institut Mines-Télécom [Paris] (IMT)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL), École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Télécom Bretagne-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Université européenne de Bretagne - European University of Brittany (UEB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Télécom Bretagne-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Université européenne de Bretagne - European University of Brittany (UEB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS), Lab-STICC_ENSTAB_CACS_COM, Ocean University of China (College of Engineering), Ocean University of China, and Shanghai Jiao Tong University [Shanghai]
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Engineering ,Underwater vehicle · Added mass · Damping · CFD · Robust ,Damping matrix ,business.industry ,Mechanical Engineering ,Control engineering ,Computational fluid dynamics ,Industrial and Manufacturing Engineering ,[SPI.AUTO]Engineering Sciences [physics]/Automatic ,Nonlinear system ,Matrix (mathematics) ,Artificial Intelligence ,Control and Systems Engineering ,Control theory ,Electrical and Electronic Engineering ,Robust control ,business ,Software ,Parametric statistics ,Added mass - Abstract
International audience; The two critical issues of robust control are stable controller synthesis and control performance guarantee in the presence of model uncertainties.Inside all robust stable solutions, small modeling parametric uncertainties lead to better performance controllers. However, the cost to develop an accurate hydrodynamic model, which shrinks the uncertainty intervals, is usually high. Meanwhile, when the robot geometry is complex, it becomes very difficult to identify its dynamic and hydrodynamic parameters. In this paper, the main objective is to find an efficientmodeling approach to tune acceptable control design models. A control-oriented modeling approach is proposed for a low-speed semi-AUV (Autonomous Underwater Vehicle) CISCREA, which has complexshaped structures. The proposed solution uses cost efficient CFD (computational fluid dynamic) software to predict the two hydrodynamic key parameters: The added mass matrix and the damping matrix. FourDOF (degree of freedom) model is built for CISCREA from CFD and verified through experimental results.Numerical and experimental results are compared. In addition, rotational damping CFD solutions are studied using STAR-CCM+TM. A nonlinear compensator is demonstrated to tune linear yaw model for robust control scheme.
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- 2015
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15. Recent advances in availability and synthesis of the economic costs of biological invasions
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Danish A Ahmed, Phillip J Haubrock, Ross N Cuthbert, Alok Bang, Ismael Soto, Paride Balzani, Ali S Tarkan, Rafael L Macêdo, Laís Carneiro, Thomas W Bodey, Francisco J Oficialdegui, Pierre Courtois, Melina Kourantidou, Elena Angulo, Gustavo Heringer, David Renault, Anna J Turbelin, Emma J Hudgins, Chunlong Liu, Showkat A Gojery, Ugo Arbieu, Christophe Diagne, Boris Leroy, Elizabeta Briski, Corey J A Bradshaw, Franck Courchamp, Gulf University for Science and Technology (GUST), Senckenberg Research Institute and Natural History Museum [Frankfurt], Senckenberg – Leibniz Institution for Biodiversity and Earth System Research - Senckenberg Gesellschaft für Naturforschung, Leibniz Association-Leibniz Association, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses [University of South Bohemia] (CENAKVA), Faculty of Fisheries and Protection of Waters [University of South Bohemia], University of South Bohemia -University of South Bohemia, Institute for Global Food Security [Belfast], Queen's University [Belfast] (QUB), Azim Premji University, Society for Ecology Evolution and Development, Mugla Sitki Kocman University, Bournemouth University [Poole] (BU), Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Freie Universität Berlin, Universidade Federal do Parana [Curitiba] (UFPR), Universidade Federal do Paraná (UFPR), University of Aberdeen, Centre d'Economie de l'Environnement - Montpellier (CEE-M), Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), University of Southern Denmark (SDU), Aménagement des Usages des Ressources et des Espaces marins et littoraux - Centre de droit et d'économie de la mer (AMURE), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Estación Biológica de Doñana (EBD), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Universidade Federal de Lavras = Federal University of Lavras (UFLA), Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), Ecologie Systématique et Evolution (ESE), AgroParisTech-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Natural Resources Canada (NRCan), Great Lakes Forestry Centre, Sault Sainte Marie, Ontario, Department of Biology, Carleton University (Carleton University), Carleton University, Ocean University of China (OUC), Institute of Hydrobiology [Wuhan], Chinese Academy of Sciences [Beijing] (CAS), University of Kashmir, Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Goethe-Universität Frankfurt am Main-Senckenberg – Leibniz Institution for Biodiversity and Earth System Research - Senckenberg Gesellschaft für Naturforschung, Smithsonian Conservation Biology Institute, Centre de Biologie pour la Gestion des Populations (UMR CBGP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Helmholtz Centre for Ocean Research [Kiel] (GEOMAR), Flinders University [Adelaide, Australia], School of Natural Sciences and ARC Centre of Excellence for Australian Biodiversity and Heritage, University of Tasmania, Hobart, Tasmania, 7001, Australia, The InvaCost project was funded by the French National Research Agency (ANR-14-CE02-0021), the BNP-Paribas Foundation Climate Initiative, the AXA Research Fund Chair of Invasion Biology of University Paris Saclay and by the BiodivERsA and Belmont-Forum call 2018 on biodiversity scenarios (AlienScenarios, BMBF/PT DLR 01LC1807C). M.K. received funding from the European Union’s Horizon 2020 research programme under a Marie Skłodowska-Curie grant agreement 899546. C.J.A.B. acknowledges the Australian Research Council (CE170100015) for support. R.N.C. is funded by the Leverhulme Trust (ECF-2021-638001). A.B. acknowledges Azim Premji University’s grants programme (UNIV-RC00326) for support. G.H. was supported by Coordenação de Aperfeiçoamento de Pessoal de Nível Superior — Brasil (Capes) — (001) and the Alexander von Humboldt Foundation., and ANR-14-CE02-0021,InvaCosts,Insectes envahissants et leurs couts pour la biodiversité, l'économie et la santé humaine(2014)
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environmental management ,InvaCost ,economic impacts ,guiding policy ,[SHS.ECO]Humanities and Social Sciences/Economics and Finance ,invasive species ,[SHS]Humanities and Social Sciences - Abstract
All data presented are available via the invacost R package. Related code and supplementary data available at github.com/cjabradshaw/InvaCostVersionTrends.; International audience; Biological invasions are a global challenge that has received insufficient attention. Recently available cost syntheses have provided policy and decision makers with reliable and up-to-date information on the economic impacts of invasive alien species, aiming to motivate effective management. The resultant InvaCost database is now publicly and freely accessible and enables rapid extraction of monetary cost information globally. This has facilitated knowledge sharing, developed a more integrated and multidisciplinary network of researchers, and forged multidisciplinary collaborations among diverse organisations and stakeholders. Over 50 scientific publications so far have used the database and provided detailed assessments of invasion costs across geographic, taxonomic, and spatio-temporal scales. These studies have been instrumental in guiding policy and legislative decisions, while attracting public and media attention. We provide an overview of the improved availability, reliability, and defragmentation of monetary costs, how this has enhanced invasion science as a discipline, and outline directions for future development
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- 2023
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16. Hotspots of Cenozoic Tropical Marine Biodiversity
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Moriaki Yasuhara, Huai-Hsuan May Huang, Markus Reuter, Skye Yunshu Tian, Jonathan D. Cybulski, Aaron O’Dea, Briony L. Mamo, Laura J. Cotton, Emanuela Di Martino, Ran Feng, Clay R. Tabor, Gabriel Reygondeau, Qianshuo Zhao, Mark T. Warne, Kyawt K. T. Aye, Jingwen Zhang, Anne Chao, Chih-Lin Wei, Fabien L. Condamine, Adam T. Kocsis, Wolfgang Kiessling, Mark J. Costello, Derek P. Tittensor., Chhaya Chaudhary, Marina C. Rillo, Hideyuki Doi, Yun-wei Dong, Thomas M. Cronin, Erin E. Saupe, Heike K. Lotze, Kenneth G. Johnson, Willem Renema, John M. Pandolfi, Mathias Harzhauser, Jeremy B. C. Jackson, Yuanyuan Hong, School of biological sciences (Hong Kong, Chine), The University of Hong Kong (HKU), Smithsonian Institution, Universität Greifswald - University of Greifswald, Smithsonian Tropical Research Institute, University of Bologna/Università di Bologna, Macquarie University, Natural History Museum of Denmark, Faculty of Science [Copenhagen], University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH), University of Oslo (UiO), University of Connecticut (UCONN), University of British Columbia (UBC), Ocean University of China (OUC), Deakin University [Burwood], National Tsing Hua University [Hsinchu] (NTHU), National Taiwan University [Taiwan] (NTU), Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de recherche pour le développement [IRD] : UR226-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), MTA-MTM-ELTE Research Group for Paleontology, Eötvös Loránd University (ELTE)-Hungarian Academy of Sciences (MTA), Faculty of Biosciences and Aquaculture [Bodø], University of Nordland, Dalhousie University [Halifax], United Nations Environment Programme (UNEP) World Conservation Monitoring Center (WCMC) (UNEP WCMC), Alfred Wegener Institute [Potsdam], Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI), Carl Von Ossietzky Universität Oldenburg = Carl von Ossietzky University of Oldenburg (OFFIS), Center for Marine Environmental Sciences [Bremen] (MARUM), Universität Bremen, University of Hyogo, Qingdao National Laboratory for Marine Science and Technology, US Geological Survey [Salt Lake City], United States Geological Survey [Reston] (USGS), University of Oxford, The Natural History Museum [London] (NHM), Naturalis Biodiversity Center [Leiden], Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam [Amsterdam] (UvA), University of Queensland [Brisbane], Natural History Museum [Vienna] (NHM), American Museum of Natural History (AMNH), Nanjing Institute of Geology and Palaeontology (NIGPAS-CAS), Chinese Academy of Sciences [Nanjing Branch], This work is a product of the PSEEDS (Palaeobiology as the Synthetic Ecological, Evolutionary, and Diversity Sciences) project and is partly supported by grants from the Research Grants Council of the Hong Kong Special Administrative Region, China (project codes: HKU 17300821, HKU 17300720, HKU 17302518, C7050-18E, C7013-19G), the Marine Conservation Enhancement Fund (project code: MCEF20002_L01), the Marine Ecology Enhancement Fund (project code: MEEF2021001), the Small Equipment Grant of the University of Hong Kong, the Seed Funding Programme for Basic Research of the University of Hong Kong (project codes: 202011159122, 201811159076), the Faculty of Science RAE Improvement Fund of the University of Hong Kong, the Seed Funding of the HKU-TCL Joint Research Centre for Artificial Intelligence of the University of Hong Kong and the SKLMP Seed Collaborative Research Fund (SKLMP/SCRF/0031) (to M.Y.), by the Sistema Nacional de Investigadores (SENACYT) (to A.O), by the Australian Research Council Centre of Excellence for Coral Reef Studies (to J.M.P.), by the Austrian Science Fund (FWF, project code: P 29158-N29) (to M.R.), and by State Key Laboratory of Palaeobiology and Stratigraphy and Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences (project code: 203108) (to Y.H.)., Stephen J. Hawkins, A. Louise Allcock, Peter A. Todd, Stephen E. Swearer, Maria Byrne, Louise B. Firth, Anaëlle J. Lemasson, Cathy H. Lucas, Ezequiel M. Marzinelli, Peter J. Mumby, Bayden D. Russell, I. Philip Smith, and Hawkins, S. J.
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Species diversity gradients ,Global patterns ,[SDV]Life Sciences [q-bio] ,Tropics ,Neogene ,Paleobiology ,Fossil records ,Paleogene - Abstract
International audience; Hotspots of tropical marine biodiversity are areas that harbour disproportionately large numbers of species compared to surrounding regions. The richness and location of these hotspots have changed throughout the Cenozoic. Here, we review the global dynamics of Cenozoic tropical marine biodiversity hotspots, including the four major hotspots of the Indo-Australian Archipelago (IAA), western Tethys (present Mediterranean), Arabian Sea and Caribbean Sea. Our review supports the ‘Hopping Hotspots’ model, which proposes that the locations of peak biodiversity are related to Tethyan faunal elements and track broad-scale shallow-marine habitats and high coastal complexity created by the collision of tectonic plates. A null hypothesis is the ‘Whack-A-Mole’ model, which proposes that hotspots occur in habitats suitable for high diversity regardless of taxonomic identity or faunal elements. Earlier ‘Centre-of’ theories (e.g. centres of origin with diversity decreasing with distance from supposed areas of exceptionally high rates of speciation, for which easy connection to adjacent regions to the east and west is important) were based on the analysis of recent biotas with no palaeontological foundation, and may better explain diversity dynamics within a hotspot rather than those between hotspots. More recently, however, human disturbance is massively disrupting these natural patterns.
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- 2022
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17. Syntheses, structures and selective dye adsorption of five formic-based coordination polymers prepared by in-situ hydrolysis of N, N′-dimethylformamide
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Fan, Yu-hua [Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, Shandong 266100 (China)]
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- 2017
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18. FPGA implementation of a parameterized Fourier synthesizer
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Ali Mansour, Rui Yang, Benoit Clement, J. G. Wang, Lab-STICC_ENSTAB_CID_IHSEV, Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC), École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Télécom Bretagne-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Université européenne de Bretagne - European University of Brittany (UEB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Télécom Bretagne-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Université européenne de Bretagne - European University of Brittany (UEB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS), Pôle STIC_OSM, École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne), Ocean University of China (College of Engineering), Ocean University of China, Lab-STICC_ENSTAB_CACS_COM, Pôle STIC_IDM, and Clement, Benoit
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Nios II ,Computer science ,business.industry ,02 engineering and technology ,[SPI.AUTO]Engineering Sciences [physics]/Automatic ,020202 computer hardware & architecture ,Harmonic analysis ,symbols.namesake ,[SPI.AUTO] Engineering Sciences [physics]/Automatic ,Fourier transform ,Gate array ,020204 information systems ,0202 electrical engineering, electronic engineering, information engineering ,Electronic engineering ,symbols ,Harmonic ,Field-programmable gate array ,business ,Fourier series ,Frequency modulation ,Computer hardware - Abstract
International audience; Field-Programmable Gate Array (FPGA) offers advantages for many applications, particularly where missions are complex and time performance is critical. For small-production digital acoustic synthesizers, FPGA can achieve the above-mentioned tighter system requirements with low total system costs on single chip. In this manuscript, a real-time acoustic synthesizer is implemented using Fourier series algorithm on Altera's Cyclone II FPGA chip. This work emphasizes systematic designs and parallel computations. The proposed system includes a flexible processor and a parallel parameterized acoustic module. On one hand, the Nios II embedded processor, which is relatively low-speed component, is used to generate commands and configure high-speed acoustic module parameters. On the other hand, acoustic module which should require high-speed components contains 4 parallel architectures to gain high-speed simultaneous calculus of 4 independent digital timbres. Every timbre is equivalent to 16 parallel high-precision harmonic channels with 0.3 % frequency error. Experimental results corroborate the fact that a single FPGA chip can achieve complex missions and attain real-time performances.
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- 2013
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19. Expression of the inulinase gene from the marine-derived Pichia guilliermondii in Saccharomyces sp. W0 and ethanol production from inulin
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ZHANG, Tong, Chi, Zhe, Chi, Zhenming, Parrou, Jean-Luc, Gong, Fang, UNESCO Chinese Center of Marine Biotechnology, Ocean University of China, Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés (LISBP), Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de la Recherche Agronomique (INRA), Ocean University of China-ocean, Institut National de la Recherche Agronomique (INRA)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Grant number 06-2-2-22-jch from Qingdao Municipal Science and Technology Commission, Qingdao, China, and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)
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[SDV.BIO]Life Sciences [q-bio]/Biotechnology ,Ethanol ,Glycoside Hydrolases ,Inulin ,Gene Expression ,Yeast ,Pichia ,Enzyme Activity ,Saccharomyces ,Fermentation ,Functional complementation ,Seawater ,[SDV.MP.MYC]Life Sciences [q-bio]/Microbiology and Parasitology/Mycology ,Research Articles ,Biotransformation ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience; It has been confirmed that Saccharomyces sp. W0 can produce high concentration of ethanol. In this study, the INU1 gene cloned from the marine-derived Pichia guilliermondii was transformed into uracil mutant of Saccharomyces sp. W0. The positive transformant Inu-66 obtained could produce 34.2 U ml-1 of extracellular inulinase within 72 h of cultivation. It was found that 15.2 U of inulinase activity per one gram of inulin was suitable for inulin hydrolysis and ethanol production by the transformant Inu-66. During the small-scale fermentation, 13.7 ml of ethanol in 100 ml of medium was produced and 99.1% of the added inulin was utilized by the transformant. During the 2 l fermentation, 14.9% (v/v) of ethanol was produced from inulin and 99.5% of the added inulin was converted into ethanol, CO2 and cell mass.
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- 2010
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20. Permanent Genetic Resources added to Molecular Ecology Resources Database 1 October 2009–30 November 2009
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Gen-Bo Xu, Yi Kyung Kim, Zhen Xia Sha, N. Sreejayan, Maria Domenica Moccia, B. W. Hou, Fuwen Wei, Shaoying Liu, Mi Sook Min, Radosavljević Ivan, William Stewart Grant, Peter Kaňuch, Hai Hui Ye, Monika Pfunder, Stefan Woltmann, Antonis Rokas, Z. Y. Feng, Susanne Gustafsson, Benjamin N. Sacks, Hang Lee, M. L. Xie, Eun Ha Shin, Xiao Jun Xu, Kevin A. Feldheim, Scott A. Taylor, Zlatko Šatović, Maria Gaillard, Martin Lascoux, Christopher A. Saski, Ryan P. Walter, Vicki L. Friesen, Junghwa An, Shao Jing Li, Gudasalamani Ravikanth, Arnaud Béchet, William D. Templin, Juan A. Galaraza, Qingui Cai, Yi Wang, Zac Grauvogel, Åsa Berggren, Kyung Seok Kim, Sang Gyu Kim, James A. Morris-Pocock, Brian R. Kreiser, Sung Kyoung Choi, K. N. Ganeshaiah, Branka Javornik, X. Y. Ding, L. Han, Sofia Hemmilä, Julia Geraci, Daniel D. Heath, Leonardo A. Gallo, J. Zhong, Kyung i.Kl Kim, Frank Cézilly, Zhengxin Sun, Marcelle Moore, Maren A. Klich, Kumara P. Mohana, Yong Fan, F. Zhang, Zlatko Liber, Xiaolin Liao, Yong Jin Won, Athena Lam, Giovanni G. Vendramin, Alex Widmer, Xiangjiang Zhan, Sarah K. Brown, Han Chan Park, Yong Tao, Ramesh Vasudeva, Y. H. Ma, Yajun Ma, D. L. Li, Jing Wu, Kelly Lasater, George K. Roderick, Ke Jian Wang, Anna Cassel-Lundhagen, Carolina Soliani, J. Derek Hogan, Jernej Jakše, Yun Sun Lee, Ye Seul Kwan, Song-Lin Chen, Xin Hui Luo, Sean D. Schoville, Michael William Bruford, Jeffrey Robert Guyon, John G. Gibbons, Lin Lin, R. Uma Shaanker, Sang In Kim, Federico Sebastiani, W. Y. Li, Gui Zhong Wang, Rémi Wattier, Wei Cheng, Paula Marchelli, Woo-Jin Kim, BK21 program for Veterinary Science, Seoul National University [Seoul] (SNU), Centre de recherche de la Tour du Valat, Department of Ecology, Swedish University of Agricultural Sciences (SLU), Canid Diversity and Conservation Laboratory, University of California, Biodiversity and Ecological Processes Group, Cardiff University, Caopo Nature Reserves, Biogéosciences [UMR 6282] [Dijon] (BGS), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Key Laboratory for Sustainable Utilization of Marine Fisheries Resource, Ministry of Agriculture-Chinese Academy of Fishery Sciences, Alaska Department of Fish and Game, Jiangsu Provincal Key Laboratory for Biodiversity & Biotechnology, Nanjing Normal University (NNU), Department of Pathogen Biology and State Key Laboratory for Medical Immunology, Second Military Medical University, Pritzker Laboratory for Molecular Systematics and Evolution, The Field Museum, Department of Biology, Queen's University, Estación Biológica de Doñana (EBD), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Unidad de Genética Ecológica y Mejoramiento Forestal, INTA EEA Bariloche, School of Ecology and Conservation, University of Agricultural Sciences, Ashoka Trust for Research in Ecology and the Environment, Royal Enclave, Department of Forestry and Environmental Sciences, Department of Biological Sciences [Nashville], Vanderbilt University [Nashville], Program in Evolutionary Functional Genomics, Uppsala University, Auke Bay Laboratories (ABL), Alaska Fisheries Science Center (AFSC), NOAA National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA)-NOAA National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA), Great Lakes Institute for Environmental Research, University of Windsor [Ca], Centre for Plant Biotechnology and Breeding, University of Ljubljana, Biotechnology Research Division, National Fisheries Research and Development Institute, Conservation Genome Resource Bank for Korean Wildlife (CGRB), USDA, Agence Régionale de la Santé (ARS), Department of Biological Sciences, University of Southern Mississippi (USM), Division of EcoScience, EWHA Womans University (EWHA), Department of Environmental Science, Policy, and Management [Berkeley] (ESPM), University of California [Berkeley], University of California-University of California, Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, State Key Laboratory of Marine Environmental Science (MEL), Division of Botany [Zagreb], Department of Biology [Zagreb], Faculty of Science [Zagreb], University of Zagreb-University of Zagreb-Faculty of Science [Zagreb], University of Zagreb-University of Zagreb, Sichuan Academy of Forestry, College of Aqua-life Science and Technology, Shanghai Ocean University, Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires] (CONICET), Institute of Integrative Biology (IBZ), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Department of Crop Physiology, Biological Sciences Department [Sacrameno], California State University [Sacramento], Ecogenics GmbH, Department of Population Health and Reproduction, Genomics Institute, Clemson University, Department of Seed Science and Technology [Zagreb], Faculty of Agriculture [Zagreb] (UNIZG), Laboratorio Genexpress, Università degli Studi di Firenze = University of Florence [Firenze] (UNIFI), Department of Forest Biology and Tree Improvement, Instituto di Genetica Vegetale, Consiglio Nazionale delle Ricerche (CNR), Key Lab of Animal Ecology and Conservation Biology, Chinese Academy of Sciences [Beijing] (CAS), Department of Ecology and Evolutionary Biology, Tulane University, College of Marine Life Sciences [Qingdao], Ocean University of China (OUC), Seoul National University [Seoul], Swedish University of Agricultural Sciences, Biogéosciences [Dijon] ( BGS ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), Nanjing Normal University, Estacion Biologica Doñana, Auke Bay Laboratories ( ABL ), Alaska Fisheries Science Center ( AFSC ), NOAA National Marine Fisheries Service ( NMFS ), National Oceanic and Atmospheric Administration ( NOAA ) -National Oceanic and Atmospheric Administration ( NOAA ) -NOAA National Marine Fisheries Service ( NMFS ), National Oceanic and Atmospheric Administration ( NOAA ) -National Oceanic and Atmospheric Administration ( NOAA ), University of Windsor, Conservation Genome Resource Bank for Korean Wildlife ( CGRB ), Agence Régionale de la Santé ( ARS ), University of Southern Mississippi, EWHA Womans University ( EWHA ), Department of Environmental Science, Policy and Management, State Key Laboratory of Marine Environmental Science, Department of Botany, University of Zagreb, Consejo Nacional de Investigaciones Científicas y Técnicas ( CONICET ), Eidgenössische Technische Hochschule [Zürich] ( ETH Zürich ), Department of Seed Science and Technology, Università degli Studi di Firenze [Firenze], Consiglio Nazionale delle Ricerche ( CNR ), Chinese Academy of Sciences [Beijing] ( CAS ), College of Marine Life Sciences, and Ocean University of China
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0106 biological sciences ,Colias interior ,computer.software_genre ,010603 evolutionary biology ,01 natural sciences ,03 medical and health sciences ,food ,Botany ,Genetics ,Ecology, Evolution, Behavior and Systematics ,030304 developmental biology ,0303 health sciences ,[SDV.GEN]Life Sciences [q-bio]/Genetics ,biology ,Database ,Salvia officinalis ,biology.organism_classification ,food.food ,Dendrobium devonianum ,Dendrobium loddigesii ,Nothofagus obliqua ,Sula nebouxii ,Colias eurytheme ,[ SDV.GEN ] Life Sciences [q-bio]/Genetics ,Aspergillus clavatus ,computer ,Biotechnology - Abstract
5 pages; International audience; This article documents the addition of 411 microsatellite marker loci and 15 pairs of Single Nucleotide Polymorphism (SNP) sequencing primers to the Molecular Ecology Resources Database. Loci were developed for the following species: Acanthopagrus schlegeli, Anopheles lesteri, Aspergillus clavatus, Aspergillus flavus, Aspergillus fumigatus, Aspergillus oryzae, Aspergillus terreus, Branchiostoma japonicum, Branchiostoma belcheri, Colias behrii, Coryphopterus personatus, Cynogolssus semilaevis, Cynoglossus semilaevis, Dendrobium officinale, Dendrobium officinale, Dysoxylum malabaricum, Metrioptera roeselii, Myrmeciza exsul, Ochotona thibetana, Neosartorya fischeri, Nothofagus pumilio, Onychodactylus fischeri, Phoenicopterus roseus, Salvia officinalis L., Scylla paramamosain, Silene latifo, Sula sula, and Vulpes vulpes. These loci were cross-tested on the following species: Aspergillus giganteus, Colias pelidne, Colias interior, Colias meadii, Colias eurytheme, Coryphopterus lipernes, Coryphopterus glaucofrenum, Coryphopterus eidolon, Gnatholepis thompsoni, Elacatinus evelynae, Dendrobium loddigesii Dendrobium devonianum, Dysoxylum binectariferum, Nothofagus antarctica, Nothofagus dombeyii, Nothofagus nervosa, Nothofagus obliqua, Sula nebouxii, and Sula variegata. This article also documents the addition of 39 sequencing primer pairs and 15 allele specific primers or probes for Paralithodes camtschaticus.
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- 2010
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21. Observations and Implications of Diurnal Climatology and Trends in Direct and Diffuse Solar Radiation Over China
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Yawen Wang, Jiahua Zhang, Jörg Trentmann, Stephanie Fiedler, Su Yang, Arturo Sanchez‐Lorenzo, Katsumasa Tanaka, Wenping Yuan, Martin Wild, Ocean University of China (OUC), Aerospace Information Research Institute, Chinese Academy of Sciences [Beijing] (CAS), CAS Key Laboratory of Earth and Planetary Physics (EPP), Institute of Geology and Geophysics [Beijing] (IGG), Chinese Academy of Sciences [Beijing] (CAS)-Chinese Academy of Sciences [Beijing] (CAS), Deutscher Wetterdienst [Offenbach] (DWD), Institute for Geophysics and Meteorology [Köln] (IGM), University of Cologne, Hans Ertel Zentrum für Wetterforschung [Offenbach], China Meteorological Administration (CMA), Universidad de Extremadura - University of Extremadura (UEX), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), National Institute for Environmental Studies (NIES), School of Atmospheric Sciences [Zhuhai], Sun Yat-Sen University [Guangzhou] (SYSU), Southern Marine Science and Engineering Guangdong Laboratory, Institute for Atmospheric and Climate Science [Zürich] (IAC), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), and ANR-19-MPGA-0008,PRATO,Achieving the Paris Agreement Temperature Targets after Overshoot(2019)
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[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere ,Atmospheric Science ,Geophysics ,Space and Planetary Science ,Earth and Planetary Sciences (miscellaneous) ,[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment - Abstract
Solar radiation received at the Earth's surface (Rs) is comprised of two components, the direct radiation (Rd) and the diffuse radiation (Rf). Rd, the direct beam from the sun, is essential for concentrated solar power generation. Rf, scattered by atmospheric molecules, aerosols, or cloud droplets, has a fertilization effect on plant photosynthesis. But how Rd and Rf change diurnally is largely unknown owing to the lack of long-term measurements. Taking advantage of 22 years of homogeneous hourly surface observations over China, this study documents the climatological means and evolutions in the diurnal cycles of Rd and Rf since 1993, with an emphasis on their implications for solar power and agricultural production. Over the solar energy resource region, we observe a loss of Rd which is relatively large near sunrise and sunset at low solar elevation angles when the sunrays pass through the atmosphere on a longer pathway. However, the concentrated Rd energy covering an average 10-hr period around noon during a day is relatively unaffected. Over the agricultural crop resource region, the large amounts of clouds and aerosols scattering more of the incoming light result in Rf taking the main proportion of Rs during the whole day. Rf resources and their fertilization effect in the main crop region of China further enhances since 1993 over almost all hours of the day. Key Points: - The loss of direct radiation over China since 1993 is relatively large at sunrise and sunset with little effect on solar power generation - The diffuse component dominates solar radiation normally near sunrise and sunset, but for the whole day over the main sown area of China - The diffuse fraction is further enhanced in the main sown area of China over almost all hours of the day since 1993
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- 2022
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22. Sentinel-2 for High Resolution Mapping of Slope-Based Vegetation Indices Using Machine Learning By SAGA GIS
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Lemenkova, Polina and Ocean University of China (OUC)
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010504 meteorology & atmospheric sciences ,ACM: I.: Computing Methodologies/I.4: IMAGE PROCESSING AND COMPUTER VISION/I.4.8: Scene Analysis ,Biome ,Wetland ,ACM: I.: Computing Methodologies/I.4: IMAGE PROCESSING AND COMPUTER VISION/I.4.10: Image Representation ,01 natural sciences ,Grassland ,remote sensing ,Vegetation index ,Geoinformatics ,Cameroon ,Land cover types ,QH540-549.5 ,ACM: I.: Computing Methodologies/I.5: PATTERN RECOGNITION ,[SDV.EE]Life Sciences [q-bio]/Ecology, environment ,geography.geographical_feature_category ,Ecology ,Geography ,[SDE.IE]Environmental Sciences/Environmental Engineering ,04 agricultural and veterinary sciences ,Vegetation ,GIS ,ACM: K.: Computing Milieux ,ACM: I.: Computing Methodologies/I.4: IMAGE PROCESSING AND COMPUTER VISION/I.4.1: Digitization and Image Capture ,[INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR] ,ACM: I.: Computing Methodologies/I.5: PATTERN RECOGNITION/I.5.1: Models ,SAGA GIS ,Mapping ,[SDE]Environmental Sciences ,ACM: I.: Computing Methodologies ,Cartography ,NDVI ,[SDE.MCG]Environmental Sciences/Global Changes ,[INFO.INFO-DS]Computer Science [cs]/Data Structures and Algorithms [cs.DS] ,Data analysis ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,Climate change ,Context (language use) ,[SDV.BID]Life Sciences [q-bio]/Biodiversity ,Rainforest ,Environment ,ACM: I.: Computing Methodologies/I.4: IMAGE PROCESSING AND COMPUTER VISION/I.4.0: General ,Normalized Difference Vegetation Index ,[SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems ,Image processing ,vegetation ,ACM: I.: Computing Methodologies/I.4: IMAGE PROCESSING AND COMPUTER VISION/I.4.7: Feature Measurement ,Machine learning ,[INFO]Computer Science [cs] ,[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology ,0105 earth and related environmental sciences ,geography ,ACM: I.: Computing Methodologies/I.4: IMAGE PROCESSING AND COMPUTER VISION ,Data visualization ,[INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV] ,ACM: I.: Computing Methodologies/I.5: PATTERN RECOGNITION/I.5.3: Clustering ,15. Life on land ,[INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation ,Computer science ,ACM: I.: Computing Methodologies/I.6: SIMULATION AND MODELING ,13. Climate action ,Africa ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,Environmental science ,Physical geography ,Sentinel-2 ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology - Abstract
Vegetation of Cameroon includes a variety of landscape types with high biodiversity. Ecological monitoring of Yaoundé requires visualization of vegetation types in context of climate change. Vegetation Indices (VIs) derived from Sentinel-2 multispectral satellite image were analyzed in SAGA GIS to separate wetland biomes, as well as savannah and tropical rainforests. The methodology includes computing 6 VIs: NDVI, DVI, SAVI, RVI, TTVI, CTVI. The VIs shown correlation of data with vegetation distribution rising from wetlands, grassland, savanna, and shrub land towards tropical rainforests, increasing values along with canopy greenness, while also being inversely proportional to soils, urban spaces and Sanaga River. The study contributed to the environmental studies of Cameroon and demonstration of the satellite image processing.
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- 2020
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23. Porosity and Permeability Evolution with Deviatoric Stress of Reservoir Sandstone: Insights from Triaxial Compression Tests and In Situ Compression CT
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Franck Agostini, Cong Hu, Yonggang Jia, Shandong Provincial Key Laboratory of Ocean Engineering, Ocean University of China, Qingdao, Laboratoire de Mécanique, Multiphysique, Multiéchelle - UMR 9013 (LaMcube), and Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)
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In situ ,QE1-996.5 ,Materials science ,Article Subject ,0211 other engineering and technologies ,Geology ,02 engineering and technology ,010502 geochemistry & geophysics ,01 natural sciences ,Tortuosity ,[SPI.MAT]Engineering Sciences [physics]/Materials ,Underground gas storage ,Stress (mechanics) ,Permeability (earth sciences) ,[SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph] ,General Earth and Planetary Sciences ,Composite material ,Porosity ,Triaxial compression ,ComputingMilieux_MISCELLANEOUS ,021101 geological & geomatics engineering ,0105 earth and related environmental sciences - Abstract
Porosity and permeability are the two most important characteristics of underground gas storage in sandstone reservoirs. Injection of gas into reservoir rocks will cause rock deformation. The deformation will influence the porosity and permeability properties of the rocks. We investigate the evolution of these two properties of storage sandstone by triaxial compression tests and a uniaxial in situ compression CT test. As the deviatoric stress increases, the sandstone is compressed firstly (porosity reduction) and then dilates (porosity enhancement). With the increase in confining stress, the occurrence of volumetric dilation will be delayed. Trapped porosity of this sandstone at different deviatoric stresses is very small (0.122%-0.115%) which indicates that nearly all pores are connected. During the compression stage, the decrease in permeability is related to compression of pores and microcracks. During the volumetric dilation stage, it is related to increase in tortuosity. This interpretation can be confirmed by observations of in situ compression CT. The permeability evolution estimated by pore network modeling is consistent with macroscopic testing results.
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- 2020
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24. SEAFLOOR MAPPING OF THE ATLANTIC OCEAN BY GMT: VISUALIZING MID ATLANTIC RIDGE SPREADING, SEDIMENT DISTRIBUTION AND TECTONIC DEVELOPMENT
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Lemenkova, Polina, Ocean University of China (OUC), and CSC SOA, Marine Scholarship of China, Grant 2016SOA002
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Cartography ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,Mid-Atlantic Ridge ,ACM: I.: Computing Methodologies/I.3: COMPUTER GRAPHICS ,ACM: I.: Computing Methodologies/I.3: COMPUTER GRAPHICS/I.3.6: Methodology and Techniques/I.3.6.2: Graphics data structures and data types ,Paleontology ,Lithosphere ,ACM: I.: Computing Methodologies/I.3: COMPUTER GRAPHICS/I.3.6: Methodology and Techniques ,ACM: K.: Computing Milieux/K.3: COMPUTERS AND EDUCATION ,[INFO]Computer Science [cs] ,[SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology ,ACM: I.: Computing Methodologies/I.3: COMPUTER GRAPHICS/I.3.4: Graphics Utilities ,Atlantic Ocean ,Seabed ,ACM: K.: Computing Milieux/K.3: COMPUTERS AND EDUCATION/K.3.2: Computer and Information Science Education ,[SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics ,GMT ,Subduction ,Geology ,Crust ,General Medicine ,ACM: K.: Computing Milieux ,[INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR] ,Seafloor spreading ,Geovisualization ,ACM: K.: Computing Milieux/K.3: COMPUTERS AND EDUCATION/K.3.1: Computer Uses in Education ,Tectonics ,ACM: I.: Computing Methodologies/I.6: SIMULATION AND MODELING ,Mapping ,[SDE]Environmental Sciences ,Accretion (geology) ,Geospatial Data ,ACM: I.: Computing Methodologies ,ACM: K.: Computing Milieux/K.4: COMPUTERS AND SOCIETY - Abstract
International audience; The study presents the insights of the tectonic development and geological settings of the Atlantic Ocean supported by cartographic visualization in Generic Mapping Tools (GMT). The aim is to study geologic situation and trends in the tectonic development of the Mid-Atlantic Ridge and Atlantic Ocean seafloor. The objective is to find out impact of various factors (such as volcanic, tectonic, hydrothermal and sedimentary processes) that sculpt seafloor geomorphology, and correlation between early history of crust formation, geological processes and present submarine landforms. Other assignments in this work refer to mutual comparison of raster grids on sedimentation, topography, geology, seafloor fabric and highlighting similarities among the landforms and sediment thickness. Asymmetry in crustal accretion is explained by the tectonic history of the lithosphere formation. Correlation between plate subduction and development of the submarine landforms is explained by the Earth's crust extension resulting in formation of cracks, elongations, faults, rifts. Ocean seafloor geomorphology is shaped by a variety of factors that impact its form at different scales. These drivers (tectonic evolution, oceanic currents, hydrology, sedimentation) have effects on geomorphic landforms of the seafloor in context of historic geological development and during Quaternary. Technical part of this work was performed by GMT scripting toolset with all maps plotted in American polyconic projection. The results are received by overlay, cartographic analysis and synthesis of the multi-source geodata through mapping and interpreting grids (ETOPO1, EGM96, GlobSed, crustal age). This work contributes to expand the knowledge on geological and tectonic development of the Atlantic Ocean seabed in order to complete the view of its submarine geomorphology
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- 2020
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25. Variations in the bathymetry and bottom morphology of the Izu-Bonin Trench modelled by GMT
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Lemenkova, Polina, Ocean University of China (OUC), and China Scholarship Council (CSC), State Oceanic Administration (SOA), Marine Scholarship of China, Grant Nr. 2016SOA002, P. R. C.
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Data Analysis ,010504 meteorology & atmospheric sciences ,Geography, Planning and Development ,010502 geochemistry & geophysics ,01 natural sciences ,GEBCO ,Data Analysis and Techniques ,Earth Science ,Bathymetry ,Geography & Development ,ACM: I.: Computing Methodologies/I.5: PATTERN RECOGNITION ,GMT ,geography.geographical_feature_category ,Izu-Bonin Trench ,Submarine ,Geology ,Geodesy ,[INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR] ,Geophysics ,Mapping ,Ridge ,Trench ,ACM: I.: Computing Methodologies ,Cartography ,Geographic Data Analysis ,[INFO.INFO-CC]Computer Science [cs]/Computational Complexity [cs.CC] ,[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] ,[INFO.INFO-DS]Computer Science [cs]/Data Structures and Algorithms [cs.DS] ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,Modelling ,ACM: I.: Computing Methodologies/I.3: COMPUTER GRAPHICS ,Geoinformatics ,Histogram ,ACM: I.: Computing Methodologies/I.6: SIMULATION AND MODELING/I.6.5: Model Development ,[SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/Volcanology ,General Bathymetric Chart of the Oceans ,[SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology ,[SDU.STU.AG]Sciences of the Universe [physics]/Earth Sciences/Applied geology ,[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography ,[INFO.INFO-MS]Computer Science [cs]/Mathematical Software [cs.MS] ,0105 earth and related environmental sciences ,Submarine Geomorphology ,[SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics ,geography ,Pacific Ocean ,[INFO.INFO-PL]Computer Science [cs]/Programming Languages [cs.PL] ,[INFO.INFO-IA]Computer Science [cs]/Computer Aided Engineering ,[INFO.INFO-NA]Computer Science [cs]/Numerical Analysis [cs.NA] ,Geologic map ,[INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation ,ACM: I.: Computing Methodologies/I.2: ARTIFICIAL INTELLIGENCE ,ACM: I.: Computing Methodologies/I.6: SIMULATION AND MODELING ,Computer Science - Abstract
Cartographic visualisation is a central concept in geoinformatics, and Generic Mapping Tools (GMT) functionality provides a variety of modules for effective mapping. However, due to its specific scripting approach, there is not enough reported experience of GMT mapping, comparing to traditional GIS. This contribution introduces steps that can be taken to perform cartographic mapping and modelling using GMT. Geographically, this paper investigates the Izu-Bonin Trench in the Pacific Ocean. The aim was to compare its geomorphology in two segments, and each was modelled by a series of profiles. The comparative analysis shows that the southern segment is deeper and is a more precisely V-shaped form with a steeper gradient slope. The northern part has an asymmetric slope with submarine terraces to the west and a straight shape to the east. The northern profile is based on 407 samples (13.5%) at depths of −5,600 to −5,800 m, followed by 304 samples at −5,800 to −6,000 m (10%). The southern histogram has a bimodal distribution with two peaks: 523 samples (20%) with depths of −5,800 to −6,000 m. The second peak (10%) is on the Bonin Ridge. The GMT proved to be an effective instrument for marine geological mapping, 3D and 2D modelling, statistical analysis and graphical plotting.
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- 2020
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26. Evaluating the Hatchery Program of a Highly Exploited Shrimp Stock (Fenneropenaeus chinensis) in a Temperate Marine Ecosystem
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Lei Xing, Yong Chen, Kisei R. Tanaka, Nicolas Barrier, Yiping Ren, Shanghai Ocean University, University of Maine, Pacific Islands Fisheries Science Center (PIFSC), NOAA National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA), MARine Biodiversity Exploitation and Conservation (UMR MARBEC), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), and Ocean University of China (OUC)
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carrying-capacity ,Global and Planetary Change ,fisheries enhancement ,economic profits ,Ocean Engineering ,[SDV.SA.ZOO]Life Sciences [q-bio]/Agricultural sciences/Zootechny ,dynamics ,Aquatic Science ,shellfish aquaculture ,Oceanography ,OSMOSE-JZB model ,survival ,release ,jiaozhou bay ,responsible approach ,ecological impacts ,Fenneropenaeus chinensis release ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,individual-based model ,management-objectives ,Water Science and Technology ,Jiaozhou Bay - Abstract
Hatchery programs are commonly used to enhance fishery stocks, while the efforts to minimize potential negative ecological impacts have grown in recent years. In China, Fenneropenaeus chinensis is a fast-growing, short-lived shrimp species with a high commercial value. F. chinensis fishery is heavily dependent on the hatchery program. We evaluated the trade-off between economic profits and ecological impacts of F. chinensis hatchery program in the Jiaozhou Bay of China. The total length of released individuals was 1.4 cm. The results showed that artificially released F. chinensis individuals experienced high predation pressure during the first 2 weeks. The economic profit peaked when 198 million individuals were released. The modeled hatchery program yielded a lower proportion of individuals with the increasing amount of F. chinensis release. The temporally uniform hatchery release was more efficient than other hatchery release scenarios (e.g., increasing the released amount year by year) in a long-term hatchery program. F. chinensis had the negative impacts on two large predatory fishes. Large fishes recovered at a slower rate than small fishes after the F. chinensis release stopped. Reducing fishing pressure could offset negative impacts of F. chinensis release on large fishes. The study indicates that the effectiveness of F. chinensis release cannot be enhanced by simply increasing the released amount. A long-term F. chinensis hatchery program with a large released amount may present additional challenges for managing natural resources in an ecosystem context.
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- 2022
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27. Metagenomic and Microscopic Analysis of Magnetotactic Bacteria in Tangyin Hydrothermal Field of Okinawa Trough
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Chen, Si, Yu, Min, Zhang, Wenyan, He, Kuang, Pan, Hongmiao, Cui, Kaixuan, Zhao, Yicong, Zhang, Xiao-Hua, Xiao, Tian, Zhang, Wuchang, Wu, Long-Fei, Key Laboratory of Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Ocean University of China (OUC), Laboratoire de chimie bactérienne (LCB), and Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)
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Microbiology (medical) ,magnetosome genes ,hydrothermal field ,magnetotactic bacteria ,16S rRNA gene ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,Microbiology ,Magnetofossil - Abstract
International audience; Magnetotactic bacteria (MTB) have been found in a wide variety of marine habitats, ranging from intertidal sediments to deep-seaseamounts. Deep-sea hydrothermal fields are rich in metal sulfides, which are suitable areas for the growth of magnetotacticbacteria. However, magnetotactic bacteria in hydrothermal fields have never been reported. Here the occurrence of MTB insediments from the Tangyin hydrothermal field was analyzed by 16S rRNA gene amplicon analysis, metagenomics and transmissionelectron microscopy. Sequencing 16S rRNA gene yielded a total of 709 MTB sequences belonging to 20 OTUs, affiliated withDesulfobacterota, Alphaproteobacteria, and Nitrospirae. Three shapes of magnetofossil were identified by transmission electronmicroscopy: elongated-prismatic, bullet-shaped, and cuboctahedron. All of these structures were composed of Fe3O4. Totally 121sequences were found to be homologous to published MTB magnetosome-function-related genes, and relevant domains wereidentified. Further analysis revealed that diverse MTB are present in the Tangyin hydrothermal field, and that multicellularmagnetotactic prokaryotes (MMPs) might be the dominant MTB. And the MTB of Desulfobacterota and Nitrospirae here shownevolutionarily unique compared with known MTB.
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- 2022
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28. Acoustic superlens using Helmholtz-resonator-based metamaterials
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Wang, Ning [Department of Marine Technology, Ocean University of China, Qingdao 266100 (China)]
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- 2015
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29. Non-gated laser-induced breakdown spectroscopy in bulk water by position-selective detection
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Zheng, Ronger [Optics and Optoelectronics Laboratory, Ocean University of China, Qingdao 266100 (China)]
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- 2015
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30. Freshwater flux variability lengthens the period of the low‐frequency AMOC variability
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Fukai Liu, Jian Lu, Young‐Oh Kwon, Claude Frankignoul, Yiyong Luo, Ocean University of China (OUC), Pacific Northwest National Laboratory (PNNL), Océan et variabilité du climat (VARCLIM), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
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Geophysics ,[SDE]Environmental Sciences ,General Earth and Planetary Sciences - Abstract
Atlantic Meridional Overturning Circulation (AMOC) exhibits interdecadal to multidecadal variability, yet the role of surface freshwater flux (FWF) variability in this AMOC variability remains unclear. This study isolates the contribution of FWF variability in modulating AMOC through a partially coupled experiment, in which the effect of the interactive FWF is disabled. It is demonstrated that the impact of the coupled FWF variability enhances the persistence of density and deep convection anomalies in the Labrador Sea (LS), thus lengthening the period of the AMOC oscillation on multidecadal timescale and suppressing its ∼30-year periodicity. Further lead-lag regressions illuminate that the more persistent LS density anomalies are maintained by two mechanisms: (a) The local temperature-salinity coupling through the evaporation and (b) a downstream propagation along the East Greenland Current of the extra salinity anomaly due to the sea ice melting changes associated with an atmosphere forcing over the southern Greenland tip.
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- 2022
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31. Near-real-time global gridded daily CO2 emissions
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Duo Cui, Zhu Liu, Hengqi Wang, Monica Crippa, Biqing Zhu, Feifan Yan, Da Huo, Yilong Wang, Steven J. Davis, Philippe Ciais, Qiang Zhang, Greet Janssens-Maenhout, Diego Guizzardi, Pierre Gentine, Frédéric Chevallier, Xinyu Dou, Taochun Sun, Piyu Ke, Zheng Bo, Efisio Solazzo, Zhu Deng, Tsinghua University [Beijing] (THU), Chinese Academy of Sciences [Beijing] (CAS), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), ICOS-ATC (ICOS-ATC), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Modélisation INVerse pour les mesures atmosphériques et SATellitaires (SATINV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), University of California [Irvine] (UC Irvine), University of California (UC), European Commission - Joint Research Centre [Ispra] (JRC), Ocean University of China (OUC), Columbia University [New York], and The authors acknowledge the National Natural Science Foundation of China (grants 41921005 and 71874097), Beijing Natural Science Foundation (JQ19032), and the Qiu Shi Science & Technologies Foundation
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Science (General) ,010504 meteorology & atmospheric sciences ,Q ,Aviation ,Ke ,gridded CO2 emission ,Cui ,01 natural sciences ,7. Clean energy ,Energy policy ,M ,S.J ,Q1-390 ,Deng ,Ciais ,11. Sustainability ,Wang ,E ,Z ,Davis ,[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere ,0303 health sciences ,Multidisciplinary ,P ,T ,Sun ,H ,daily ,Bo ,Solazzo ,D ,Janssens-Maenhout ,Yan ,Y ,Real-time computing ,03 medical and health sciences ,Affordable and Clean Energy ,Crippa ,Near-real-time global gridded daily CO 2 emissions ,G ,Report ,near real time ,X ,Zhu ,[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment ,Huo ,global change ,030304 developmental biology ,0105 earth and related environmental sciences ,Consumption (economics) ,The Innovation Dou ,business.industry ,Fossil fuel ,Global change ,Liu ,Climate Action ,B ,Zhang ,Guizzardi ,Carbon neutrality ,13. Climate action ,F ,Chevallier ,Spatial ecology ,Environmental science ,Satellite ,Gentine ,business - Abstract
Precise and high-resolution carbon dioxide (CO2) emission data is of great importance in achieving carbon neutrality around the world. Here we present for the first time the near-real-time Global Gridded Daily CO2 Emissions Dataset (GRACED) from fossil fuel and cement production with a global spatial resolution of 0.1° by 0.1° and a temporal resolution of 1 day. Gridded fossil emissions are computed for different sectors based on the daily national CO2 emissions from near-real-time dataset (Carbon Monitor), the spatial patterns of point source emission dataset Global Energy Infrastructure Emissions Database (GID), Emission Database for Global Atmospheric Research (EDGAR), and spatiotemporal patters of satellite nitrogen dioxide (NO2) retrievals. Our study on the global CO2 emissions responds to the growing and urgent need for high-quality, fine-grained, near-real-time CO2 emissions estimates to support global emissions monitoring across various spatial scales. We show the spatial patterns of emission changes for power, industry, residential consumption, ground transportation, domestic and international aviation, and international shipping sectors from January 1, 2019, to December 31, 2020. This gives thorough insights into the relative contributions from each sector. Furthermore, it provides the most up-to-date and fine-grained overview of where and when fossil CO2 emissions have decreased and rebounded in response to emergencies (e.g., coronavirus disease 2019 [COVID-19]) and other disturbances of human activities of any previously published dataset. As the world recovers from the pandemic and decarbonizes its energy systems, regular updates of this dataset will enable policymakers to more closely monitor the effectiveness of climate and energy policies and quickly adapt., Graphical abstract, Public summary • We present the first near-real-time Global Gridded Daily CO2 Emissions Dataset (GRACED) • GRACED can be updated in near real time with a spatial resolution of 0.1° and a temporal resolution of 1 day • GRACED shows gridded emissions of seven sectors: power, industry, residential consumption, ground transport, domestic aviation, international aviation, and international shipping • Regular updates of GRACED will enable policymakers to more closely monitor the effectiveness of climate and energy policies and quickly adapt on various spatial scales
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- 2021
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32. Deriving the angular response function for backscattering sensors
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Edouard Leymarie, Xiaodong Zhang, Lianbo Hu, Emmanuel Boss, University of Southern Mississippi (USM), Laboratoire d'océanographie de Villefranche (LOV), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), University of Maine, and Ocean University of China (OUC)
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Normalization (statistics) ,Physics ,010504 meteorology & atmospheric sciences ,business.industry ,Scattering ,Attenuation ,Monte Carlo method ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Light scattering ,Computational physics ,010309 optics ,Optics ,Path length ,Attenuation coefficient ,0103 physical sciences ,[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic ,14. Life underwater ,Electrical and Electronic Engineering ,business ,Engineering (miscellaneous) ,Correction for attenuation ,ComputingMilieux_MISCELLANEOUS ,[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography ,0105 earth and related environmental sciences - Abstract
We derived the angular response function ( W N ) for scattering sensors that automatically satisfies the normalization criterion and its corresponding weight ( W T ). W N ’s, derived for two commercial sensors, HydroScat-6 (HOBI Labs) and ECO-BB (Sea-Bird Inc.), agrees well with the Monte Carlo simulation and direct measurements. The backscattering measured for microbeads of known sizes agrees better with Mie calculation when the derived W N was applied. We deduced that the reduction of W T with increasing attenuation coefficient is related to path length attenuation and showed that this theoretically derived correction factor performs better than the default methods for the two commercial backscattering sensors. The analysis conducted in this study also leads to an estimate of uncertainty budget for the two sensors. The major uncertainty for ECO-BB is associated with its angular response function because of its wide field of view, whereas the main uncertainty for the HydrScat-6 is due to attenuation correction because of its relatively long path length.
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- 2021
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33. A deep framework for eddy detection and tracking from satellite sea surface height data
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Redouane Lguensat, Yuting Yang, Xin Sun, Xirong Lu, Junyu Dong, Meng Zhang, Ocean University of China: Qingdao, Shandong, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and ANR-17-MPGA-0010,HRMES,High-Resolution Modeling of the Earth System(2017)
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[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere ,Radar tracker ,business.industry ,Computer science ,Deep learning ,0211 other engineering and technologies ,02 engineering and technology ,Sea-surface height ,Visualization ,Ocean dynamics ,Eddy ,13. Climate action ,Benchmark (surveying) ,Marine energy ,General Earth and Planetary Sciences ,14. Life underwater ,Artificial intelligence ,Electrical and Electronic Engineering ,business ,[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment ,021101 geological & geomatics engineering ,Remote sensing - Abstract
International audience; Ocean eddies, as a ubiquitous phenomenon of the global ocean, are extremely important for ocean energy and material exchanges. Therefore, efficient eddy detection and tracking are crucial for advancing our understanding of ocean dynamics. This work presents a framework for automatic ocean eddy detection and tracking by leveraging state-of-the-art machine learning algorithms. First, we propose a new convolutional neural network model for multieddies detection. This model is capable of extracting accurate boundary information of eddies and fitting the gap between semantic context and sea surface height (SSH). Second, a tracking algorithm is designed to track eddies lasting a number of days and provide visualization of the dynamical processes governing eddies’ movements. Finally, we have made our data set publicly available, which is named SCSE-Eddy and can be used as a benchmark to evaluate the performances of artificial intelligence (AI)-based eddy detection methods. The data set covers daily remotely sensed SSH data located in the South China Sea and its eastern sea areas over a period of 15 years. The experimental results show that our methods achieve promising performances compared to existing approaches, especially for the eddies with indistinct geographical border. We believe that this work opens a new avenue for oceanographers to better discover and understand the physical properties of ocean eddies.
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- 2021
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34. Hydrothermal analysis of nanoparticles transportation through a porous compound cavity utilizing two temperature model and radiation heat transfer under the effects of magnetic field
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Mohsen Sheikholeslami, Metib Alghamdi, Fatih Selimefendigil, Ahmad Shafee, Zhixiong Li, School of Engineering, Ocean University of China, Qingdao, 266110, China, School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia, Department of Mechanical Engineering, Celal Bayar University, Manisa, 45140, Turkey, Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran, Renewable Energy Systems and Nanofluid Applications in Heat Transfer Laboratory, Babol Noshirvani University of Technology, Babol, Iran, Applied Science Department, College of Technological Studies, Public Authority of Applied Education and Training, Shuwaikh, Kuwait, and Mathematics Department, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia
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010302 applied physics ,Convection ,Materials science ,Buoyancy ,02 engineering and technology ,Mechanics ,engineering.material ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Thermal conduction ,Hartmann number ,01 natural sciences ,Nusselt number ,Electronic, Optical and Magnetic Materials ,symbols.namesake ,Nanofluid ,Hardware and Architecture ,0103 physical sciences ,Heat transfer ,symbols ,engineering ,Electrical and Electronic Engineering ,Rayleigh scattering ,0210 nano-technology - Abstract
In current text, we developed CVFEM code for nanomaterial hydrothermal management through a permeable compound cavity including two temperature model. Radiation and Lorentz source terms were added in formulations. Impacts of radiation parameter, Rayleigh, Hartmann number, interface heat transfer parameter and nanoparticles’ shape on nanofluid behavior were demonstrated. Contours indicate that convective mode becomes stronger with augment of buoyancy term. By increasing Nhs, conduction becomes more effective and Nusselt number reduces. As radiation term enhances, Nusselt number augments. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
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- 2019
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35. Comparative Transcriptome Analysis Provides Insights into Response of Ulva compressa to Fluctuating Salinity Conditions
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Méziane Aite, Zhaolan Mo, Guiqi Bi, Yunxiang Mao, Qikun Xing, Arnaud Belcour, Min Cao, Laboratoire de Biologie Intégrative des Modèles Marins (LBI2M), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff (SBR), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Ocean University of China (OUC), Dynamics, Logics and Inference for biological Systems and Sequences (Dyliss), Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-GESTION DES DONNÉES ET DE LA CONNAISSANCE (IRISA-D7), Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Rennes 1 (UR1), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique)
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0106 biological sciences ,Salinity ,biology ,Mechanism (biology) ,Gene Expression Profiling ,010604 marine biology & hydrobiology ,[SDV]Life Sciences [q-bio] ,Ulva compressa ,Salt Tolerance ,Plant Science ,Aquatic Science ,Photosynthesis ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Cell biology ,Transcriptome ,Ulva ,Osmolyte ,Gene expression ,Gene - Abstract
International audience; Ulva compressa, a green tide-forming species, can adapt to hypo-salinity conditions, such as estuaries and brackish lakes. To understand the underlying molecular mechanisms of hypo-salinity stress tolerance, transcriptome-wide gene expression profiles in U. compressa were created using digital gene expression profiles. The RNA-seq data were analyzed based on the comparison of differently expressed genes involved in specific pathways under hypo-salinity and recovery conditions. The up-regulation of genes in photosynthesis and glycolysis pathways may contribute to the recovery of photosynthesis and energy metabolism, which could provide sufficient energy for the tolerance under long-term hyposaline stress. Multiple strategies, such as ion transportation and osmolytes metabolism, were performed to maintain the osmotic homeostasis. Additionally, several long noncoding RNA were differently expressed during the stress, which could play important roles in the osmotolerance. Our work will serve as an essential foundation for the understanding of the tolerance mechanism of U. compressa under the fluctuating salinity conditions.
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- 2021
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36. Yttrium-dispersed C{sub 60} fullerenes as high-capacity hydrogen storage medium
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Dong, Shun-Le [Department of Physics, Ocean University of China, Qingdao 266100 (China)]
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- 2014
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37. Preparation of molybdenum carbides with multiple morphologies using surfactants as carbon sources
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Chen, Shougang [Institute of Material Science and Engineering, Ocean University of China, Qingdao 266100 (China)]
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- 2012
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38. Sol–gel synthesis of long-lasting phosphors CdSiO{sub 3}: Mn{sup 2+}, RE{sup 3+} (RE = Tb, Eu, Nd) and luminescence mechanism research
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Schultz, Isabel [Institute of Materials Science and Engineering, Ocean University of China, Songling Road 238, Qingdao 266100, Shandong Province (China)]
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- 2012
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39. Quantum state transfer through a spin chain in a multiexcitation subspace
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Gu, Yong-Jian [Department of Physics, Ocean University of China, Qingdao]
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- 2012
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40. A new organically-templated cobalt borophosphate with a novel borophosphatic anionic partial structure
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Jingrui, Duan [Institute of Material Science and Engineering, Ocean University of China, Qingdao 266100 (China)]
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- 2011
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41. Effects of carboxymethyl chitosan on the blood system of rats
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Liu, Wanshun [College of Marine Life Sciences, Ocean University of China, Qingdao 266003 (China)]
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- 2011
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42. Extension of Coupled-Modes Method to Waveguides with Elastic Bottom
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Dazhi, Gao [Department of Physics, Ocean University of China, 238 Songling Rd. Qingdao (China)]
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- 2010
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43. High-fidelity state transfer over an unmodulated linear XY spin chain
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Zhaoming, Wang [Physics Department, Ocean University of China, Qingdao 266100 (China)]
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- 2010
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44. Reviews and syntheses: The biogeochemical cycle of silicon in the modern ocean
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P. J. Tréguer, J. N. Sutton, M. Brzezinski, M. A. Charette, T. Devries, S. Dutkiewicz, C. Ehlert, J. Hawkings, A. Leynaert, S. M. Liu, N. Llopis Monferrer, M. López-Acosta, M. Maldonado, S. Rahman, L. Ran, O. Rouxel, Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Marine Science Institute [Santa Barbara] (MSI), University of California [Santa Barbara] (UCSB), University of California-University of California, Department of Marine Chemistry and Geochemistry (WHOI), Woods Hole Oceanographic Institution (WHOI), University of California, Department of Earth, Atmospheric and Planetary Sciences [MIT, Cambridge] (EAPS), Massachusetts Institute of Technology (MIT), Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, Marine Isotope Geochemistry Group, University of Oldenburg-University of Oldenburg-Max Planck Institute for Marine Microbiology, Max-Planck-Gesellschaft-Max-Planck-Gesellschaft, National High Magnetic Field Laboratory (NHMFL), Florida State University [Tallahassee] (FSU), German Research Centre for Geosciences - Helmholtz-Centre Potsdam (GFZ), Ocean University of China (OUC), Centre d'Estudis Avançats de Blanes (CEAB), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), IIM-CSIC, Process Engineering Group, University of Southern Mississippi (USM), Key Laboratory of Marine Ecosystem Dynamics, Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), This work was supported by the French National Research Agency (ANR-18-CE01-0011-01) and by the Spanish Ministry of Science, Innovation and Universities (PID2019-108627RB-I00)., ANR-18-CE01-0011,RadiCal,Calibration des isotopes stable du silicium des Radiolaires : Développement d'un nouveau paleo-indicateur du cycle du silicium marin(2018), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), University of California [Santa Barbara] (UC Santa Barbara), University of California (UC)-University of California (UC), and University of California (UC)
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0106 biological sciences ,Biogeochemical cycle ,010504 meteorology & atmospheric sciences ,lcsh:Life ,Earth sciences and geology ,Biogenic silica ,Carbon sequestration ,010502 geochemistry & geophysics ,Atmospheric sciences ,01 natural sciences ,03 medical and health sciences ,chemistry.chemical_compound ,lcsh:QH540-549.5 ,14. Life underwater ,Silicic acid ,Ecology, Evolution, Behavior and Systematics ,030304 developmental biology ,0105 earth and related environmental sciences ,Earth-Surface Processes ,0303 health sciences ,010604 marine biology & hydrobiology ,lcsh:QE1-996.5 ,Biological pump ,Global change ,Pelagic zone ,lcsh:Geology ,lcsh:QH501-531 ,Chemistry ,Life sciences, biology ,chemistry ,13. Climate action ,Benthic zone ,Environmental science ,lcsh:Ecology ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology - Abstract
21 pages, 4 figures, 3 tables.-- This work is distributed under the Creative Commons Attribution 4.0 License, The element silicon (Si) is required for the growth of silicified organisms in marine environments, such as diatoms. These organisms consume vast amounts of Si together with N, P, and C, connecting the biogeochemical cycles of these elements. Thus, understanding the Si cycle in the ocean is critical for understanding wider issues such as carbon sequestration by the ocean’s biological pump. In this review, we show that recent advances in process studies indicate that total Si inputs and outputs, to and from the world ocean, are 57% and 37% higher, respectively, than previous estimates. We also update the total ocean silicic acid inventory value, which is about 24% higher than previously estimated. These changes are significant, modifying factors such as the geochemical residence time of Si, which is now about 8000 years, 2 times faster than previously assumed. In addition, we present an updated value of the global annual pelagic biogenic silica production (255 Tmol Si yr-1) based on new data from 49 field studies and 18 model outputs, and we provide a first estimate of the global annual benthic biogenic silica production due to sponges (6 Tmol Si yr-1). Given these important modifications, we hypothesize that the modern ocean Si cycle is at approximately steady state with inputs D 14:8(+-2:6) Tmol Si yr-1 and outputs D 15:6(+-2:4) Tmol Si yr-1. Potential impacts of global change on the marine Si cycle are discussed, This work was supported by the French National Research Agency (18-CEO1-0011-01) and by the Spanish Ministry of Science, Innovation and Universities (PID2019-108627RB-I00)
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- 2021
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45. On A Family of Isospectral Pure-Birth Processes
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Laurent Miclo, Chi Zhang, Toulouse School of Economics (TSE), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-École des hautes études en sciences sociales (EHESS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut de Mathématiques de Toulouse UMR5219 (IMT), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS), Université Fédérale Toulouse Midi-Pyrénées, Toulouse School of Economics (TSE-R), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-École des hautes études en sciences sociales (EHESS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT), Ocean University of China (OUC), and ANR-17-EURE-0010,CHESS,Toulouse Graduate School défis en économie et sciences sociales quantitatives(2017)
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Statistics and Probability ,Pure mathematics ,Pure-birth processes ,Isospectral ,Spectra of Markov processes ,Intertwining relations ,[SHS.ECO]Humanities and Social Sciences/Economics and Finance ,Mixing rates ,Mathematics - Abstract
National audience; It is shown that every spectrum of a finite irreducible Markov generator whose eigen-values are real and of geometric multiplicity 1 can be obtained as the spectrum of an irreducible pure-birth Markov process with jumps from the right-most boundary to all the other points. A whole isospectral family of such processes is exhibited and their mixing rates are compared.
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- 2021
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46. Changing El Nino-Southern Oscillation in a warming climate
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Fan Jia, Michael J. McPhaden, Yoo-Geun Ham, Tao Geng, Josephine R. Brown, Axel Timmermann, Xiaopei Lin, Malte F. Stuecker, Benjamin Ng, Guojian Wang, Li Zhang, Jae Heung Park, Antonietta Capotondi, Karl Stein, Xichen Li, Kim M. Cobb, Bolan Gan, Tobias Bayr, Fei-Fei Jin, Christina Karamperidou, Boris Dewitte, Andréa S. Taschetto, Agus Santoso, Wenxiu Zhong, Xiao-Tong Zheng, Jun Ying, Wenju Cai, Sang-Wook Yeh, Lixin Wu, Shayne McGregor, Matthieu Lengaigne, Hyun-Su Jo, Kai Yang, Matthew Collins, Yun Yang, Jong-Seong Kug, Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO), University of South Wales (USW), Institut de Recherche pour le Développement (IRD), Pohang University of Science and Technology (POSTECH), MARine Biodiversity Exploitation and Conservation (UMR MARBEC), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut de Recherche pour le Développement (IRD), NOAA Pacific Marine Environmental Laboratory [Seattle] (PMEL), National Oceanic and Atmospheric Administration (NOAA), Climate Change Research Centre [Sydney] (CCRC), University of New South Wales [Sydney] (UNSW), Institute for Basic Science (IBS), Pusan National University, Center for Ocean-Land-Atmosphere Studies (COLA), Helmholtz Centre for Ocean Research [Kiel] (GEOMAR), School of Earth Sciences [Melbourne], Faculty of Science [Melbourne], University of Melbourne-University of Melbourne, Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado [Boulder]-National Oceanic and Atmospheric Administration (NOAA), NOAA Physical Sciences Laboratory (PSL), School of Earth and Atmospheric Sciences [Atlanta], Georgia Institute of Technology [Atlanta], Unité de Mathématiques Pures et Appliquées (UMPA-ENSL), Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Lyon (ENS Lyon), Ocean University of China (OUC), Institute of Basic Science (IBS), School of Electronics and Computer Science (ECS), University of Southampton, Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure de Lyon (ENS de Lyon)-Centre National de la Recherche Scientifique (CNRS), and ANR-18-CE01-0012,ARiSE,Rôle de la non-linéarité de la réponse atmosphérique à la température de l'océan dans la physique d'ENSO (El Niño Oscillation Australe)(2018)
- Subjects
Atmospheric Science ,010504 meteorology & atmospheric sciences ,interannual timescale ,[SDE.MCG]Environmental Sciences/Global Changes ,mean-state ,Climate change ,010502 geochemistry & geophysics ,01 natural sciences ,nino/southern-oscillation ,tropical pacific-ocean ,interdecadal changes ,atmospheric teleconnections ,sea-surface temperature ,14. Life underwater ,0105 earth and related environmental sciences ,Nature and Landscape Conservation ,Earth-Surface Processes ,Greenhouse warming ,15. Life on land ,Pollution ,intermodel uncertainty ,La Niña ,Sea surface temperature ,enso amplitude change ,El Niño Southern Oscillation ,Stratification (seeds) ,13. Climate action ,Internal variability ,Climatology ,la-nina ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,Teleconnection - Abstract
Originating in the equatorial Pacific, the El Niño–Southern Oscillation (ENSO) has highly consequential global impacts, motivating the need to understand its responses to anthropogenic warming. In this Review, we synthesize advances in observed and projected changes of multiple aspects of ENSO, including the processes behind such changes. As in previous syntheses, there is an inter-model consensus of an increase in future ENSO rainfall variability. Now, however, it is apparent that models that best capture key ENSO dynamics also tend to project an increase in future ENSO sea surface temperature variability and, thereby, ENSO magnitude under greenhouse warming, as well as an eastward shift and intensification of ENSO-related atmospheric teleconnections — the Pacific–North American and Pacific–South American patterns. Such projected changes are consistent with palaeoclimate evidence of stronger ENSO variability since the 1950s compared with past centuries. The increase in ENSO variability, though underpinned by increased equatorial Pacific upper-ocean stratification, is strongly influenced by internal variability, raising issues about its quantifiability and detectability. Yet, ongoing coordinated community efforts and computational advances are enabling long-simulation, large-ensemble experiments and high-resolution modelling, offering encouraging prospects for alleviating model biases, incorporating fundamental dynamical processes and reducing uncertainties in projections. Key points Under anthropogenic warming, the majority of climate models project faster background warming in the eastern equatorial Pacific compared with the west. The observed equatorial Pacific surface warming pattern since 1980, though opposite to the projected faster warming in the equatorial eastern Pacific, is within the inter-model range in terms of sea surface temperature (SST) gradients and is subject to influence from internal variability. El Niño–Southern Oscillation (ENSO) rainfall responses in the equatorial Pacific are projected to intensify and shift eastward, leading to an eastward intensification of extratropical teleconnections. ENSO SST variability and extreme ENSO events are projected to increase under greenhouse warming, with a stronger inter-model consensus in CMIP6 compared with CMIP5. However, the time of emergence for ENSO SST variability is later than that for ENSO rainfall variability, opposite to that for mean SST versus mean rainfall. Future ENSO change is likely influenced by past variability, such that quantification of future ENSO in the only realization of the real world is challenging. Although there is no definitive relationship of ENSO variability with the mean zonal SST gradient or seasonal cycle, palaeoclimate records suggest a causal connection between vertical temperature stratification and ENSO strength, and a greater ENSO strength since the 1950s than in past centuries, supporting an emerging increase in ENSO variability under greenhouse warming.
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- 2021
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47. Probabilistic ecological risk assessment and source apportionment of polycyclic aromatic hydrocarbons in surface sediments from Yellow Sea
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Zhou, H [Ocean University of China, Qingdao (China). College for Environmental Science & Engineering]
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- 2009
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48. Effect of ultraviolet irradiation on luminescence properties of undoped ZnS and ZnS:Ag nanoparticles
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Bohua, Dong [Institute of Material Science and Engineering, Ocean University of China, Qingdao 266100 (China)]
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- 2009
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49. Совместный франко-российский подход к вопросам безопасности человека и адаптации к глобальному потеплению в Российской Арктике Сибири. Примеры изучения многолетней мерзлоты, подверженности рискам и городского развития в Якутии
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Sébastien Gadal, Moisei Zakharov, Aix Marseille Université (AMU), Études des Structures, des Processus d’Adaptation et des Changements de l’Espace (ESPACE), Université Côte d'Azur (UCA)-Avignon Université (AU)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), North-Eastern Federal University, Saint-Petersburg State University, Ocean University of China, FMSH-RFFI Development of an Optimal Human Security Model for The Arctic, CNRS PEPS RICOCHET, Université Nice Sophia Antipolis (1965 - 2019) (UNS), and COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Avignon Université (AU)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)
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[SHS.STAT]Humanities and Social Sciences/Methods and statistics ,Risk exposure modeling ,Permafrost landscape changes ,[SHS.GEO]Humanities and Social Sciences/Geography ,Adaptation of populations ,Human infrastructures ,Global Warming ,[SDE.ES]Environmental Sciences/Environmental and Society ,[INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation ,Russia ,Human security ,Environmental issues ,Arctic ,[INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV] ,Scientific cooperation ,Territorial Development - Abstract
International audience; The importance, or rather the multiplicity of human security issues in the Russian Arctic is fundamental for the development of this region, whose growing economic significance with environmental problems linked to the adaptation of populations. Despite the distance, the direct impacts of global warming in the Russian Arctic are significant in France and in Western Europe. For example, the evolution of permafrost landscapes (methane, CO2 emissions, macro viruses, etc.) have directly affected human infrastructures in Yakutia Arctic and sub-Arctic zones, then at the regional level in Western Europe. Scientific cooperation makes sense because of the common issues. The built cooperation is based on the complementarity and cross-mobilization of methodologies and knowledge. This has resulted in significant advances in modeling risk exposure and the consequences for urban development in terms of understanding geophysical processes and for the development of the Russian Arctic territories in Yakutia. The research is carried out within the framework of the Franco-Russian project of FMSH-RFFI.
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- 2020
50. The NanDeSyn database for $Nannochloropsis$ systems and synthetic biology
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Jian Xu, Yonghua Li-Beisson, Jong-Min Lim, Young Uk Kim, Byeong-ryool Jeong, Nam Kyu Kang, Yanhai Gong, Guanpin Yang, Kehou Pan, Li Wei, Yantao Li, Yi Xin, Qiang Hu, Wuxin You, Hee-Mock Oh, Yong K Chang, Zengbin Wang, Won-Joong Jeong, Eric Poliner, Youn-Il Park, Suk-Won Jeong, Eva M. Farré, Chen Shen, Qintao Wang, Ansgar Poetsch, University of Chinese Academy of Sciences [Beijing] (UCAS), Qingdao National Laboratory for Marine Science and Technology, Department of Electrical Engineering [Korea Advanced Institute of Science and Technology] (KAIST), Korea Advanced Institute of Science and Technology (KAIST), Chinese Academy of Sciences [Beijing] (CAS), Ruhr-Universität Bochum [Bochum], Korea Research Institute of Bioscience & Biotechnology (KRIBB), Chungnam National University (CNU), Ocean University of China (OUC), MSU-DOE Plant Research Laboratory and Department of Biochemistry and Molecular Biology, Michigan State University [East Lansing], Michigan State University System-Michigan State University System, Michigan State University System, Environnement, Bioénergie, Microalgues et Plantes (EBMP), Institut de Biosciences et Biotechnologies d'Aix-Marseille (ex-IBEB) (BIAM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), University of Maryland Center for Environmental Science (UMCES), University of Maryland System, Bioénergie et Microalgues (EBM), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Epigenomics ,Proteomics ,0106 biological sciences ,[SDV]Life Sciences [q-bio] ,Genomics ,Plant Science ,Genome browser ,Biology ,computer.software_genre ,01 natural sciences ,Genome ,03 medical and health sciences ,Synthetic biology ,RNA, Small Cytoplasmic ,Microalgae ,Genetics ,ComputingMilieux_MISCELLANEOUS ,030304 developmental biology ,Synteny ,Internet ,0303 health sciences ,Database ,Cell Biology ,Gene Annotation ,biology.organism_classification ,Databases as Topic ,Synthetic Biology ,Transcriptome ,computer ,Functional genomics ,Metabolic Networks and Pathways ,Nannochloropsis ,010606 plant biology & botany - Abstract
International audience; Nannochloropsis species, unicellular industrial oleaginous microalgae, are model organisms for microalgal systems and synthetic biology. To facilitate community-based annotation and mining of the rapidly accumulating functional genomics resources, we have initiated an international consortium and present a comprehensive multi-omics resource database named Nannochloropsis Design and Synthesis (NanDeSyn; http://nandesyn.single-cell.cn). Via the Tripal toolkit, it features user-friendly interfaces hosting genomic resources with gene annotations and transcriptomic and proteomic data for six Nannochloropsis species, including two updated genomes of Nannochloropsis oceanica IMET1 and Nannochloropsis salina CCMP1776. Toolboxes for search, Blast, synteny view, enrichment analysis, metabolic pathway analysis, a genome browser, etc. are also included. In addition, functional validation of genes is indicated based on phenotypes of mutants and relevant bibliography. Furthermore, epigenomic resources are also incorporated, especially for sequencing of small RNAs including microRNAs and circular RNAs. Such comprehensive and integrated landscapes of Nannochloropsis genomics and epigenomics will promote and accelerate community efforts in systems and synthetic biology of these industrially important microalgae.
- Published
- 2020
- Full Text
- View/download PDF
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