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Science china Chemistry 2024年第10期67卷 3432-3437页

作者： Xianzhe Wei Jincheng liu Yan Su Weitao wang Guixiang wang Gen Zhang Ping wang Cheng Gu State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and DevicesSouth China University of TechnologyGuangzhou 510640China College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education School of Chemistry and Chemical EngineeringNanjing University of Science and TechnologyNanjing 210094China

Designing efficient proton-conductive materials is crucial in fuel ***,it remains a substantial challenge because of the issues in proton mobility,proton-carrier amount,and orientation of proton host ***,we report an in-situ protonation strategy to produce a locally flexible porous coordination polymer(PCP)to enhance the proton-carrier loading and proton *** local dipole flipping of the ligand allows effective proton exchange with low activation energy,promoting interpore proton transport through the pore apertures and pore *** protonation induces substantial charges to the frameworks and enhances the interaction with proton carriers,thereby increasing the loading of the proton *** this design strategy,the resulting PCP exhibits enhanced phosphoric acid loading and extraordinary proton conductivities under both aqueous and anhydrous conditions compared to its isoreticular analog that features rigidity without proton-exchange *** work provides a new avenue for designing proton-conductive materials that combine structural dynamics with performance merits.

关键词： porous coordination polymers in-situ protonation local flexibility proton-exchange mechanism proton conduction

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现代浮游有孔虫生态研究进展

微体古生物学报 2010年第4期27卷 366-375页

作者：刘芳向荣中国科学院边缘海地质重点实验室中国科学院南海海洋研究所广州510301 中国科学院研究生院北京100039

古海洋环境是全球变化研究中的一个重要组成部分。作为表层古海洋环境信息主要载体的浮游有孔虫分布范围广泛,在海洋沉积物中大量保存,在该研究领域中具有不可替代的作用,是重建古环境的基础。对现代浮游有孔虫的生态特征进行研究,是正... 详细信息

古海洋环境是全球变化研究中的一个重要组成部分。作为表层古海洋环境信息主要载体的浮游有孔虫分布范围广泛,在海洋沉积物中大量保存,在该研究领域中具有不可替代的作用,是重建古环境的基础。对现代浮游有孔虫的生态特征进行研究,是正确理解浮游有孔虫群落及其壳体地球化学指标所蕴涵古海洋环境信息的前提。本文综述了国内外浮游有孔虫生态研究的一些主要方法及其进展,重点阐述了不同海域不同海洋环境条件下一些主要浮游有孔虫属种的区域分布、深度分布、季节性变化及其壳体同位素组成等特征。最后展望了我国南海现代浮游有孔虫生态的研究前景。

关键词：现代浮游有孔虫季节性变化氧碳同位素浮游拖网沉积物捕获器

Thermal evolution and dynamic mechanism of the Sichuan Basin during the Early Permian-Middle Triassic

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Thermal evolution and dynamic mechanism of the Sichuan Basin...

Enhanced wear resistance,antibacterial performance,and biocompatibility using nanotubes containing nano-Ag and bioceramics in vitro

中国科学院地质与地球物理研究所第11届（2011年度）学术年会

作者： HE LiJuan~(1*),XU HeHua~2 & wang JiYang~1 1 State Key Laboratory of Lithospheric Evolution,institute of Geology and Geophysics,chinese academy of sciences,Beijing 100029,china 2 CAS Key Laboratory of the Marginal sea Geology,south china sea institute of oceanology,chinese academy of sciences, guangzhou 510301,china

The Sichuan Basin,located in the western margin of Yangtze Plate,is one of the important oil-gas-bearing basins in china. During the Early Permian-Middle Triassic,the Sichuan Basin experienced regional lithospheric extension and Emeishan basalt activities,both of which influenced the basin development and thermal *** we simulated the thermal effects of lithospheric extension and the Emeishan mantle plume based on different geodynamical *** results indicated that the lithospheric temperature together with the basement heat flow was generally increasing with time due to *** the stretching factor was relatively small,the thinning of lithosphere,and consequently the thermal disturbance,was not great. The lithospheric extension yielded about 20%increase of the basement heat flow,with maximum value of 60-62 mW m in the Early *** plume model shows that the thermal evolution of the inner zone above the plume head was influenced greatly by plume *** the outer zone and its outside area where the Sichuan Basin is located were affected only *** basalts that had erupted in the southwestern basin might disturb the basin temperature significantly,although shortly and ***,the thermal history of the Sichuan basin during the Early Permian-Middle Triassic was controlled by the lithospheric extension,but locally it superimposed thermal effects of basalt activities in its southwestern area.

关键词： tectono-thermal evolution numerical modeling lithospheric extension Emeishan basalt Sichuan Basin

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Bio-Design and Manufacturing 2024年第5期7卷 670-686页

作者： Qingge wang Jia liu Hong Wu Jingbo liu Yaojia Ren Luxin Liang Xinxin Yan Ian Baker Shifeng liu V.V.Uglov Chengliang Yang Liqiang wang State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China Affiliated Hospital of Youjiang Medical University for Nationalities Guangxi Key Laboratory for Preclinical and Translational Research on Bone and Joint Degenerative DiseasesGuangxi Zhuang Autonomous Region Engineering Research Center for Biomaterials in Bone and Joint Degenerative DiseasesGuangxi Key Laboratory for Biomedical Material ResearchBaise 533000China Department of Orthopedics The Second Xiangya HospitalCentral South UniversityChangsha 410011China Department of Orthopedics Renmin HospitalWuhan UniversityWuhan 430060China Thayer School of Engineering Dartmouth CollegeHanoverNH 03755-8000USA School of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an 710055China Belarusian State University 220030 MinskBelarus State Key Laboratory of Metal Matrix Composites School of Material Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China

A good Ti-based joint implant should prevent stress shielding and achieve good bioactivity and anti-infection *** meet these requirements,the low-elastic-modulus alloy—Ti–35Nb–2Ta–3Zr—was used as the substrate,and functional coatings that contained bioceramics and Ag ions were prepared for coating on TiO_(2)nanotubes(diameter:(80±20)nm and(150±40)nm)using anodization,deposition,and spin-coating *** effects of the bioceramics(nano-β-tricalcium phosphate,microhydroxyapatite(micro-HA),and meso-CaSiO_(3))and Ag nanoparticles(size:(50±20)nm)on the antibacterial activity and the tribocorrosion,corrosion,and early in vitro osteogenic behaviors of the nanotubes were *** tribocorrosion and corrosion results showed that the wear rate and corrosive rate were highly dependent on the features of the nanotube ***-HA showed great wear resistance with a wear rate of(1.26±0.06)×10^(−3)mm^(3)/(N·m)due to adhesive and ***-CaSiO_(3)showed enhanced cell adhesion,proliferation,and alkaline phosphatase *** coatings that contained nano-Ag exhibited good antibacterial activity with an antibacterial rate of≥89.5%against Escherichia *** findings indicate that hybrid coatings may have the potential to accelerate osteogenesis.

关键词： βTi alloy Surface modification Wear resistance Corrosion resistance Osteogenic behavior Antibacterial activity

Zircon SHRIMP U-Pb dating for the Cangshuipu volcanic rocks and its implications for the lower boundary age of the Nanhua strata in south china

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Science Bulletin 2003年第16期48卷 1663-1669页

作者： wang Jian1, LI Xianhua2, DUAN Taizhong3, liu Dunyi4, SONG Biao4, LI Zhongxiong1 & GAO Yonghua5 1. Chengdu institute of Geology and Mineral Resources, china Geologi-cal Survey, Chengdu 610082, china 2. guangzhou institute of Geochemistry, chinese academy of sciences, guangzhou 510640, china 3. Colorado School of Mines, Golden, CO 80401-1887, USA (Present address: Marathon Oil Company, Houston, TX 77056-2725, USA) 4. institute of Geology, chinese academy of Geological sciences, Bei-jing 100037, china 5. Graduate School of the chinese academy of Geological sciences, Beijing 100037, china Correspondence should be addressed to wang Jian (e-mail: jianwang@ ***) Chengdu institute of Geology and Mineral Resources China Geological Survey Chengdu 610082 China guangzhou institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China Colorado School of Mines Golden CO 80401-1887 USA institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China Graduate School of the chinese academy of Geological sciences Beijing 100037 China

The continental volcanic rocks and volcaniclas-tic sedimentary conglomerates of the Cangshuipu Formation occur well in Yiyang of Hunan Province, consisting of a wedge-shaped succession of Neoproterozoic strata that over-lie with high-angle unconformity the flysch turbidites of the Lengjiaxi Group in the Upper Mesoproterozoic Eonothem. SHRIMP zircon U-Pb dating gives a weighted mean age of 814 12 Ma for the dacitic volcanic agglomerates from the lowest part of the volcanic rocks in the Cangshuipu Forma-tion. This age is younger than previously reported values of 921—933 Ma for the volcanic rocks from the Cangshuipu Formation. Our new dating represents the lower boundary age of the Neoproterozoic System in the studied area. The younger age for the Cangshuipu volcanic rocks is supported by the following observations: （1） Lower Neoproterozoic strata （814—1000 Ma） are missing in the studied area; （2） the Nanhua rift system was initiated at about 820 Ma; and （3） an age of820 Ma may be taken as the lower boundary tim-ing of the Nanhua System （even Neoproterozoic） in south china.

关键词： Zicon U-Pb dating Neoproterozoic volcanics rift basin Nanhua System.

Satellite Tracking of Post-nesting Migration of Green Turtles

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Bulletin of the chinese academy of sciences 2002年第2期16卷 102-105页

作者： wang Wenzhi, wang dongxiao , wang Huajie & Song Xiaojun(Key Laboratory of Tropical Marine Environment Dynamics, south china sea institute of oceanology, CAS, 510301 guangzhou, china)4 (south china institute for Endangered Species) Key Laboratory of Tropical Marine Environment Dynamics South China Sea Institute of OceanologyCAS510301 GuangzhouChina south china institute for Endangered Species

During the period August 17-28, 2001, in collaboration with the Provincial Bureau of Oceanography & Fisheries of Guangdong and the south china institute for Endangered Species, the south china sea institute of oceanology, a CAS affiliate in the city of guangzhou, conducted a sea turtle satellite tracking project at Haigui Bay (Fig. 1) in the vicinity of Gangkou Town, Huidong County, Guangdong Province.

关键词： Satellite Tracking of Post-nesting Migration of Green Turtles Bay

Mesozoic subduction-accretion zone in northeastern south china sea inferred from geophysical interpretations

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Science china Earth sciences 2006年第5期49卷 471-482页

作者： ZHOU Di1, wang Wanyin2, wang Jialin3, PANG Xiong4, CAI Dongsheng5 & SUN Zhen1 1. Key Laboratory of Marginal sea Geology, south china sea institute of oceanology, chinese academy of sciences, Guang- zhou 510301, china 2. College of Geological and Topographical Engineering, Chang’an University, Xi’an 710054, china 3. Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, china 4. china National Offshore Oil Co. Limited – Shenzhen Branch, Shenzhen 518067, china 5. china National Offshore Oil Co. Limited – Research Center, Beijing 100027, china Key Laboratory of Marginal sea Geology South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou China College of Geological and Topographical Engineering Chang’an University Xi’an China Key Laboratory of Marine Geology Tongji University Shanghai China china National Offshore Oil Co. Limited — Shenzhen Branch Shenzhen China china National Offshore Oil Co. Limited — Research Center Beijing China

A segment of Mesozoic subduction-accretion zone was inferred across thenortheastern south china sea at approximately NE450 orientation. Basic evidence includes thefollowing: A belt of peek gross horizontal Bouguer gravity gradient (PGHGBA) is comparable in sizeand intensity to that of the Manila subduction-accretion zone. A belt of high positive magneticanomalies appears to the north and sub-parallel to the PGHGBA, representing the volcanic arcassociated to the subduction zone. The PGHGBA crosses obliquely both Cenozoic structures and presentseafloor topography, indicating a pre-Cenozoic age. The segment is offset left-laterally byNW-running strike-slip faults, in concord with the Mesozoic stress field of south china. Inaddition, the existence of the subduction zone is supported by wide-angle seismic data obtained indifferent years by different institutions. At approximate localities, a north-dipping ramp of Mohosurface is indicated by records of ocean-bottom seismometers, and a strong reflector about 8 kmbeneath the Moho reflector is indicated by both OBS and long-cable seismic records. Theidentification of a segment of Mesozoic subduction zone in NE south china sea fills nicely the gapof the Great Late Mesozoic Circum SE Asia Subduction-acrretion Zone, which extended from Sumatra,Java, SE Kalimantan to N Palawan, and from Taiwan, Ryukyu to SW Japan.

关键词： Mesozoic, subduction zone, SE Asia, NE south china sea, geophysics.

Geometry and 3D seismic characterisation of post-rift normal faults in the Pearl River Mouth Basin,northern south china sea

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Acta Oceanologica Sinica 2024年第4期43卷 25-39页

作者： Yuanhang liu Jinwei Gao Wanli Chen Jiliang wang Umair Khan Laboratory of Marine Geophysics and Georesources Institute of Deep-sea Science and EngineeringChinese Academy of SciencesSanya 572000China University of chinese academy of sciences Beijing 100049China

Based on high-resolution 3D seismic data acquired in the Pearl(Zhujiang)River Mouth Basin of the northern south china sea,this study investigated the geometry,spatial extension,and throw distribution of the post-rift normal fault through detailed seismic interpretation and fault modeling.A total of 289 post-rift normal faults were identified in the study area and can be classified into four types:(1)isolated normal faults above the carbonate platform;(2)isolated normal faults cutting through the carbonate platform;(3)conjugate normal faults,and(4)connecting normal *** distribution analysis on the fault planes show that the vertical throw profiles of most normal fault exhibit flat-topped *** normal faults above the carbonate platform exhibit roughly concentric ellipses with maximum throw zones in the central section whereas the normal faults cutting through the carbonate platform miss the lowermost section due to the chaotic seismic reflections in the interior of the carbonate *** vertical throws of conjugate normal faults anomalously decrease toward their intersection region on the fault plane whereas the connecting normal faults present two maximum throw zones in the central section of the fault *** to the symmetric elliptical distribution model of fault throw,an estimation was made indicating that normal faults cutting through the carbonate platform extended downward between-1308 s and-1780 s(two-way travel time)in depth and may not penetrate the entire liuhua carbonate ***,it is observed that the distribution of karst caves on the top of the carbonate platform disaccord with those of hydrocarbon reservoirs and the post-rift normal faults cutting through the carbonate platform in the study *** propose that these karst caves formed most probably by corrosive fluids derived from magmatic activities during the Dongsha event,rather than pore waters or hydrocarbons.

关键词： Post-rift normal faults fault throw Karst caves Corrosive fluids Pearl River Mouth Basin south china sea

High-frequency Resonance Analysis and Impedance Reshaping Control of MMC-HVDC System Based on Frequency Coupling Impedance Model

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Journal of Modern Power Systems and Clean Energy 2024年第2期12卷 646-657页

作者： Juanjuan wang Wei Chen Yuekun liu Chuang Fu Yunming Ye Junjie Feng School of Electric Power South China University of TechnologyGuangzhouChina Guangdong Power Grid Co. Ltd.GuangzhouChina Electric Power Research institute China Southern Power GridGuangzhouChina

In recent years, high-frequency resonance (HFR) events occurred in several modular multilevel converter based high-voltage direct current (MMC-HVDC) projects. The time delay of an MMC-HVDC system is the critical factor that induces HFR. The frequency coupling affects the impedance characteristics of an MMC and further deteriorates system stability. Therefore, in this paper, a multi-input multi-output admittance model of an MMC-HVDC system is developed to analyze its frequency characteristics. The effects of current loop, power loop, phase-locked loop, and operating point on the MMC frequency coupling degree are analyzed in detail. Meanwhile, to further suppress HFR in the MMC-HVDC system, an enhanced impedance reshaping control strategy based on the equivalent single-input single-output impedance model is proposed. Finally, the accuracy of the enhanced impedance model and the effectiveness of the impedance reshaping control are verified by electromagnetic transient simulations in PSCAD.

关键词： Modular multilevel converter based high-voltage direct current(MMC-HVDC) high-frequency resonance frequency coupling impedance model impedance reshaping control

Heat flow pattern,base of methane hydrates stability zones and BSRs in Shenhu Area,northern south china sea

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Acta Oceanologica Sinica 2011年第1期30卷 59-67页

作者： ZHANG Yi HE Lijuan wang Jiyang XU Xing SHA Zhibing GONG Yuehua wang Hongbing LIANG Jinqiang institute of Geology and Geophysics Chinese Academy of Science Beijing 100029 China Graduate University of the chinese academy of sciences Beijing 100049 China guangzhou Marine Geological Survey Guangzhou Guangdong 510760 China

Using the collected 433 heat flow values, we estimated the bases of methane hydrate stability zone （BHSZ）, in northern south china sea （NSCS）. Through comparing BHSZs with the depths of bottom simulating reflectors （BSRs）, in Shenhu Area （SA）, we found that there are big differences between them. In the north of SA, where the water depth is shallow, many slumps developed and the sedimentation rate is high, it appears great negative difference （as large as -192%）. However, to the southeast of SA, where the water depth is deeper, sedimentation rate is relatively low and uplift basement topography exists, it changes to positive difference （as large as ＋45%）. The differences change so great, which haven＇t been observed in other places of the world. After considering the errors from the process of heat flow measurement, the BSR depth, the relationship of thermal conductivity with the sediments depth, and the fluid flow activities, we conclude that the difference should be not caused by these errors. Such big disagreement may be due to the misunderstanding of BSR. The deviant ＂BSRs＂ could represent the paleo-BSRs or just gas-bearing sediment layers, such as unconformities or the specific strata where have different permeability, which are not hydraterelated BSRs.

关键词： methane hydrate BSR base of methane hydrate stability zone slump heat flow