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Preliminary Results of the Seismicity Monitoring Experiment around the 2019 Mw5.4 Earthquake Epicenter in the Central South China Sea Basin

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Journal of Earth Science 2024年第1期35卷 212-220页

作者： Wenfei Gong Aiguo Ruan Xiongwei Niu Zhenjie Wang Pingchuan Tan Xiaodong Wei Wei Wang Zhengyi Tong Liqun Cheng Fansheng Kong shaoping lu Jianke Fan Weiwei Ding Jinyao Gao Chunguo Yang Jiabiao Li School of Oceanography Shanghai Jiaotong UniversityShanghai 200240China Key Laboratory of submarine Geosciences Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China Zhejiang Earthquake Administration Hangzhou 310013China School of Earth Sciences Zhejiang UniversityHangzhou 310027China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519082China School of Earth Sciences and Engineering Sun Yat-sen UniversityZhuhai 519082China Institute of Oceanology Chinese Academy of SciencesQingdao 266071China

On September 5,2019,a moderate earthquake of Mw5.4 unexpectedly occurred in the apparently quiescent central basin of the South China *** immediately carried out a seismicity monitoring experiment around the epicenter by using broadband ocean bottom seismometers(OBS)for the following three scientific *** first is knowing the earthquake seismogenic mechanism,fault structure and further *** second is finding the role of the residual spreading ridge playing in earthquake processes and further revealing the deep structures of the ridge directional turning *** third is confirming the existence and significance of the so called“Zhongnan fault”.This paper reports the preliminary results of the first phase *** OBSs were deployed for seismicity monitoring with a duration of 288 days,but only three were ***-earthquakes were firstly detected by an automatic seismic phase picking algorithm and then were verified by analyzing their seismic phases and time-frequency characteristics in detail.A total of 21,68 and 89 microearthquakes were picked out from the three OBSs respectively within the distance of 30 *** dominant frequency of these micro-earthquakes is 12-15 Hz,indicating tectonic *** the first two months after the mainshock the seismicity was relatively stronger,and micro-earthquakes were still occurring occasionally till the end of observation,indicating the epicenter area is *** used Match&Locate method to locate 57 micro-earthquakes *** spatial distribution shows that the seismicity is developed mainly along the NE direction roughly parallel to the residual ridge with depth variations between 10-20 km.

关键词： South China Sea microseismic monitoring earthquakes fault broadband OBS

Functional genomics of Brassica napus:Progresses,challenges,and perspectives

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Journal of Integrative Plant Biology 2024年第3期66卷 484-509页

作者： Zengdong Tan Xu Han Cheng Dai shaoping lu Hanzi He Xuan Yao Peng Chen Chao Yang lun Zhao Qing-Yong Yang Jun Zou Jing Wen Dengfeng Hong Chao Liu Xianhong Ge Chuchuan Fan Bing Yi Chunyu Zhang Chaozhi Ma Kede Liu Jinxiong Shen Jinxing Tu Guangsheng Yang Tingdong Fu Liang Guo Hu Zhao National Key Laboratory of Crop Genetic Improvement Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhan 430070China Yazhouwan National Laboratory Sanya 572025China

Brassica napus,commonly known as rapeseed or canola,is a major oil crop contributing over 13%to the stable supply of edible vegetable oil *** and understanding the gene functions in the *** genome is crucial for genomic breeding.A group of genes controlling agronomic traits have been successfully cloned through functional genomics studies in *** this review,we present an overview of the progress made in the functional genomics of ***,including the availability of germplasm resources,omics databases and cloned functional *** on the current progress,we also highlight the main challenges and perspectives in this *** advances in the functional genomics of *** contribute to a better understanding of the genetic basis underlying the complex agronomic traits in *** and will expedite the breeding of high quality,high resistance and high yield in *** varieties.

关键词： accelerate breeding Brassica napus functional genomics high resistance high yield

退火温度对键合金带微观组织与综合性能的影响

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热加工工艺 2024年第8期53卷 55-58页

作者：付全马丽华熊智石国岑卢绍平刘毅贵研铂业股份有限公司稀贵金属综合利用新技术国家重点实验室云南昆明650106

采用聚焦离子束(FIB)、扫描电镜(SEM)、力学和电学性能试验设备等测试手段,研究了不同退火温度对金带组织结构、力学性能和电学性能的影响。结果表明:金带加工态组织由沿轧向伸长的{001}~{110}取向变形晶粒组成,300℃退火时,金带发生再... 详细信息

采用聚焦离子束(FIB)、扫描电镜(SEM)、力学和电学性能试验设备等测试手段,研究了不同退火温度对金带组织结构、力学性能和电学性能的影响。结果表明:金带加工态组织由沿轧向伸长的{001}~{110}取向变形晶粒组成,300℃退火时,金带发生再结晶,形成{001}~{110}再结晶晶粒。温度升至500℃时,再结晶完成,晶粒以Cube取向({100})为主导。随退火温度增加,金带的抗拉强度减小,伸长率和导电率增加。退火温度超过200℃后,金带抗拉强度显著减小,而温度超过400℃后,伸长率显著增加。金带的导电率在250℃和400℃出现两次明显增加,归因于金带发生了明显回复和再结晶,点缺陷和位错大幅度减少,导致导电率显著增加。

关键词：键合金带退火温度微观组织力学性能导电率

Proteome-wide identification of S-sulfenylated cysteines response to salt stress in Brassica napus root

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Oil Crop Science 2023年第4期8卷 243-251页

作者： Qian Qu Xiaowei Wu Qing Zhou shaoping lu Xuan Yao Liang Guo Liangqian Yu National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan430070China Yazhouwan National Laboratory Sanya572025China

Reactive oxygen species(ROS)play a key role in a variety of biological processes,such as the perception of abiotic stress,the integration of different environmental signals,and the activation of stress response *** stress could induce an increased ROS accumulation in plants,disrupting intracellular redox homeostasis,leading to posttranslational modifications(PTMs)of specific proteins,and eventually causing adaptive changes in ***,we performed an iodoTMT-based proteomic approach to identify the sulfenylated proteins in *** root responsing to salt ***,1348 sulfenylated sites in 751 proteins were identified and these proteins were widely existed in different cell compartments and *** study revealed that proteins with changed abundance and sulfenylation level in *** root under salt stress were mainly enriched in the biological processes of ion binding,glycolysis,ATP binding,and oxidative stress *** study displays a landscape of sulfenylated proteins response to salt stress in *** root and provides some theoretical support for further understanding of the molecular mechanisms of redox regulation under salt stress in plants.

关键词： IodoTMT Brassica napus root Salt stress Sulfenylation Redox regulation

Non-specific phospholipase C4 hydrolyzes phosphosphingolipids and phosphoglycerolipids and promotes rapeseed growth and yield

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Journal of Integrative Plant Biology 2023年第11期65卷 2421-2436页

作者： Bao Yang Jianwu Li Jiayu Yan Ke Zhang Zhewen Ouyang Yefei lu Huili Wei Qing Li Xuan Yao shaoping lu Yueyun Hong Xuemin Wang Liang Guo National Key Laboratory of Crop Genetic Improvement Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhan 430070China Department of Biology University of MissouriSt.LouisMO 63121USA Donald Danforth Plant Science Center St.LouisMO 63132USA Yazhouwan National Laboratory Sanya 572025China

Phosphorus is a major nutrient vital for plant growth and development,with a substantial amount of cellular phosphorus being used for the biosynthesis of membrane ***,we report that NON-SPECIFIC PHOSPHOLIPASE C4(NPC4)in rapeseed(Brassica napus)releases phosphate from phospholipids to promote growth and seed yield,as plants with altered NPC4 levels showed significant changes in seed production under different phosphate *** regularly interspaced short palindromic repeat(CRISPR)/CRISPR-associated nuclease 9(Cas9)-mediated knockout of Bna NPC4 led to elevated accumulation of phospholipids and decreased growth,whereas overexpression(OE)of Bna NPC4resulted in lower phospholipid contents and increased plant growth and seed *** demonstrate that Bna NPC4 hydrolyzes phosphosphingolipids and phosphoglycerolipids in vitro,and plants with altered Bna NPC4 function displayed changes in their sphingolipid and glycerolipid contents in roots,with a greater change in glycerolipids than sphingolipids in leaves,particularly under phosphate deficiency *** addition,Bna NPC4-OE plants led to the upregulation of genes involved in lipid metabolism,phosphate release,and phosphate transport and an increase in free inorganic phosphate in *** results indicate that Bna NPC4 hydrolyzes phosphosphingolipids and phosphoglycerolipids in rapeseed to enhance phosphate release from membrane phospholipids and promote growth and seed production.

关键词： inorganic phosphorus non-specific phospholipase C4 phosphate deficiency phospholipids phosphorus use efficiency rapeseed

A Survey on Multiview Video Synthesis and Editing

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Tsinghua Science and Technology 2016年第6期21卷 678-695页

作者： shaoping lu Taijiang Mu Songhai Zhang the Department of Electronics and Informatics (ETRO) Vrije Universiteit Brussel (VUB) the TNList Tsinghua University

Multiview video can provide more immersive perception than traditional single 2-D video. It enables both interactive free navigation applications as well as high-end autostereoscopic displays on which multiple users can perceive genuine 3-D content without glasses. The multiview format also comprises much more visual information than classical 2-D or stereo 3-D content, which makes it possible to perform various interesting editing operations both on pixel-level and object-level. This survey provides a comprehensive review of existing multiview video synthesis and editing algorithms and applications. For each topic, the related technologies in classical 2-D image and video processing are reviewed. We then continue to the discussion of recent advanced techniques for multiview video virtual view synthesis and various interactive editing applications. Due to the ongoing progress on multiview video synthesis and editing, we can foresee more and more immersive 3-D video applications will appear in the future.

关键词： multiview video view synthesis video editing color correction survey

Mantle flow underneath the South China Sea revealed by seismic anisotropy

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National Science Review 2023年第10期10卷 54-61页

作者： Fansheng Kong Rui Gao Stephen S.Gao Kelly H.Liu Weiwei Ding Xiongwei Niu Aiguo Ruan Pingchuan Tan Jianke Fan shaoping lu Zhengyi Tong Liqun Cheng Wenfei Gong Yanghui Zhao Jiabiao Li Key Laboratory of Submarine Geosciences Second Institute of OceanographyMinistry of Natural Resources Southern Marine Science and Engineering Guangdong Laboratory Geology and Geophysics Program Department of Geosciences and Geological and Petroleum Engineering Missouri University of Science and Technology School of Earth Sciences and Engineering Sun Yat-sen University Key Laboratory of Marine Geology and Environment Institute of Oceanology Chinese Academy of Sciences

It has long been established that plastic flow in the asthenosphere interacts constantly with the overlying lithosphere and plays a pivotal role in controlling the occurrence of geohazards such as earthquakes and volcanic ***,accurately characterizing the direction and lateral extents of the mantle flow field is notoriously difficult,especially in oceanic areas where deployment of ocean bottom seismometers(OBSs) is expensive and thus *** this study,by applying shear wave splitting analyses to a dataset recorded by an OBS array that we deployed between mid-2019 and mid-2020 in the South China Sea(SCS),we show that the dominant mantle flow field has a NNW-SSE orientation,which can be attributed to mantle flow extruded from the Tibetan Plateau by the ongoing Indian-Eurasian *** addition,the results suggest that E-W oriented flow fields observed in South China and the Indochina Peninsula do not extend to the central SCS.

关键词： mantle flow South China Sea Tibetan Plateau seismic anisotropy shear wave splitting

汇聚背景下的多幕裂陷作用及其迁移机制:以南海北部珠江口盆地为例

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地学前缘 2022年第4期29卷 307-318页

作者：詹诚卢绍平方鹏高中山大学地球科学与工程学院广东广州510275 自然资源部第二海洋研究所海底科学重点实验室浙江杭州310012

南海的形成演化受控于印-澳、欧亚以及太平洋板块的相互运动,为研究汇聚背景下板块碰撞及其远程效应提供重要窗口。为了揭示该汇聚背景下的多幕裂陷过程,本文选取地质信息丰富的整个珠江口盆地为典型区,利用三条高精度地震剖面,对盆地... 详细信息

南海的形成演化受控于印-澳、欧亚以及太平洋板块的相互运动,为研究汇聚背景下板块碰撞及其远程效应提供重要窗口。为了揭示该汇聚背景下的多幕裂陷过程,本文选取地质信息丰富的整个珠江口盆地为典型区,利用三条高精度地震剖面,对盆地各地质单元进行断层活动速率和构造沉降速率的定量计算及综合分析。结果表明盆地裂陷期东部、中部和西部主要控凹断层的平均活动速率分别为96 m/Ma、223 m/Ma和124 m/Ma,且其平均沉降速率依次为8.5 m/Ma、34 m/Ma和12.7 m/Ma,盆地整体呈现中部裂陷作用最强,其后向西部和东部逐渐减弱的特征。本文认为这与先存断裂以及初始地壳厚度有关:盆地东部和中部存在NE向先存断裂,并且东部先存断裂更加活跃,因此在新生代拉伸应力下东部更易表现为裂陷作用最强的区域,其次为中部和西部;而受前新生代时期俯冲作用的影响,岩浆的底垫作用引起盆地东部地壳增厚,东部裂陷作用强度急剧降低,造成裂陷作用强度的东西差异。此外,盆地南段凹陷裂陷期的断层活动和沉降速率发生激增,裂陷作用存在向南迁移的现象。本文推测在深度相关的伸展模式的影响下,南段凹陷地壳温度升高,强度减弱,因而在伸展应力下发生快速的拉伸减薄,导致裂陷中心向南迁移及岩浆物质上涌。同时,侵入的岩浆物质导致高角度正断层转换成低角度正断层,进一步促进裂陷中心向南迁移。

关键词：珠江口盆地多幕裂陷作用迁移机制断层活动速率构造沉降

Improvement of the conversion efficiency of Mg_(3)Sb_(2)thermoelectric devices through optimizing the resistivity of the MgSbNi barrier layer

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Journal of Materials Science & Technology 2024年第1期168卷 208-214页

作者： Huimin Zhang Yachao Wang Zuhair A.Munir Yongzhong Zhang Wenhao Fan shaoping Chen College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan030024China Capital Aerospace Machinery Company Beijing100076China Department of Material Science and Engineering University of CaliforniaDavisCalifornia95616United States of America College of Physics and Optoelectronics Taiyuan University of TechnologyTaiyuan030024China Instrumental Analysis Center of Taiyuan University of Technology Taiyuan030024China

Mg_(3)Sb_(2)-based thermoelectric materials have been the focus of widespread investigations as promising candidates for the harvesting of waste *** stability and service performance are key points for the commercial applications of these *** utilized Mg_(4.3)Sb_(3)Ni as a barrier layer to improve the thermal stability of Mg 3 Sb 2-based ***,its intrinsic high resistivity contributed nega-tively to the desired performance of the *** this work,we investigated two other Mg-Sb-Ni ternary phases,MgSbNi and MgSbNi_(2),as new barrier layer materials to connect with Mg_(3.2)Sb_(2)Y_(0.05).The results show that the efficiency of the Mg_(1.2)SbNi/Mg_(3.2)Sb_(2)Y_(0.05)/Mg_(1.2)SbNi joint is increased by 33%relative to the higher Mg-content barriers due to lower *** system exhibited good interfacial compatibility and showed little change with aging at 673 K for 20 days.

关键词： Mg_(3)Sb_(2) Mg_(1.2)SbNi Barrier layer Conversion efficiency