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| 1 | Distribution, features, and influence factors of the submarine topographic boundaries of the Okinawa Trough显示文摘Based on multiple types of data, the topographical features of the Okinawa Trough(OT) have been characterized and a computation method has been proposed to determine the break point of continental shelf(BOS), foot point of the continental slope(FOS), the central axial point, and the maximum depth point. A total of 48 topographical profiles that crosscut the continental slope have been used to determine the trends of the BOS and FOS(the BOS and FOS lines) in the East China Sea(ECS). The trend of central axial points in the OT has been similarly determined by analyzing 39 topographical profiles across the axis of the trough. The BOS line forms the boundary between the continental shelf and slope. In the ECS, the BOS line roughly follows the 200 m isobath, continuously in the northern and middle parts of the OT, but jumping about somewhat in the south. The FOS line is the boundary between the continental slope and the bottom of the trough. The depth of the FOS increases gradually from north to south in the OT. Intense incisions by canyons into the slope in the southern part of the trough have led to the complex distribution of FOS. Topographical profiles crosscutting the northern, middle, and southern parts of the OT exhibit features that include: a single W-shape, a composite W-shape, and a U-shape, respectively, which suggests that in the middle and northern parts of the trough the central axial points are always located on seamount peaks or ridges associated with linear seamounts, whereas in the south they are found in the center of en echelon depressions. The line formed by the central axial points is the east-west dividing line of the OT, which indicates that the trough is a natural gap that prevents the extension of ECS continental shelf to the east. The distributions of the BOS and FOS lines are influenced by fluctuation of sea levels and submarine canyons, whereas the distribution of axis lines is controlled by tectonics and deposition. | WU ZiYin LI JiaBiao JIN XiangLong SHANG JiHong LI ShouJun JIN XiaoBing | 2014 | Science China Earth Sciences2014,57,8: | 11 |
| 2 | Linear sand ridges on the outer shelf of the East China Sea显示文摘Based on the latest full-coverage high-resolu- tion multi-beam sounding data, the distribution of the linear sand ridges on the outer shelf of the East China Sea (ECS) is studied with quantitative statistical analysis. The study area can be divided into the northeastern part and the southwest-ern part. Sand ridges in the northeastern area, trending 116°N, show obvious linear character and shrink to the inner shelf. Sand ridges in the southwestern area, trending 120°N-146°N, tend to have net form. Sand ridges gradually be-come sand sheets in the center part of study area. Sand ridges are distributed landward to the isobath of 60m, dis-tributed seaward to the water depth of 120 m in the north-east and 150 m in the southwest. Immature sand ridges are observed at water depth of 130-180 m in the southwestern depressions. The acoustic reflection properties of the internal high-angle inclined beddings of the sand ridges are analyzed based on the typical seismic profiles close to the research area. Lithological analysis and dating of 4 boreholes and 12 cores indicate that the widely distributed transgressive sand layer with high content of shell debris which was formed in the early-middle Holocene is the main composition of the linear sand ridges on the outer shelf of the ECS. The domi-nating factor in formation, developing and burying of the sand ridges is the variation of water depth caused by sea- level change and the rate of sediment supply. In 12400 aBP the cotidal lines of the M2 tidal component were closely per-pendicular to the strike-directions of the sand ridges in the study area, and the tidal wave system during 12000-8000 aBP might play a key role in the formation of the linear sand ridges which are widely distributed on the outer shelf of the ECS. | WU Ziyin JIN Xianglong LI Jiabiao ZHENG Yulong WANG Xiaobo | 2005 | Chinese Science Bulletin2005,50,21: | 11 |
| 3 | Distribution,formation and evolution of sand ridges on the East China Sea shelf显示文摘Based on the integrated results of multiple data types including MBES (Multi-Beam Echo Sounding) and historical topography maps,the LSR (Linear Sand Ridges) on the ECS (East China Sea) shelf are identified,divided into subareas,and classified.The distribution of sand ridge crests is also established.The strikes of the LSR on the ECS shelf fall in a normal distribution with the center point being 155° azimuth with additional peak points at 125°,130°,140°,and 180° azimuth.The distribution of the ECS shelf sand ridges is congested in the central area,sparse in the south and north ends,divergent and bifurcated in the eastern area,and densely convergent in the western area.The LSR are divided into seven subzones according to the strikes and distribution of the sand ridges;estuary mouth ridges and open shelf sand ridges are identified and marked out.The high amplitude change of sea level resulting from the glacial-interglacial cycle is the main cause of the vast development of sand ridges on the ECS shelf.Abundant sediments on the shelf carried by the PYR (Paleo-Yangtze River) are the material source for the LSR formation,and the negative seafloor topography influences the strikes of LSR.Based on the effects of LSR distribution,change of sea level,and the simulation of ancient tidal currents,the evolution of the LSR on the ECS shelf is divided into four main stages:Stage Ⅰ before 14.5 ka BP,Stage Ⅱ between 12 and 14 ka BP,Stage Ⅲ from 1.5 to 9.5 ka BP,and Stage Ⅳ after 9 ka BP. | WU ZiYin JIN XiangLong CAO ZhenYi LI JiaBiao ZHENG YuLong SHANG JiHong | 2010 | Science China Earth Sciences2010,53,1: | 9 |
| 4 | The spatial multiscale variability of heavy metals based on factorial kriging analysis: A case study in the northeastern Beibu Gulf显示文摘Factorial kriging analysis is applied to the research on the spatial multiscale variability of heavy metals in submarine. It is used to analyze the multiscale spatial structures of seven heavy metals, Ni, Cu, Zn, Pb, Cr, As and Cd in the surface sediment from the northeastern of Beibu Gulf, identify and separate spatial variations at different scales of heavy metals, and discuss the provenance of heavy metals and the influencing factors. The results show that the existence of three-scale spatial variations those consist of nugget effect, a spherical structure with range of 30 km(short-range scale) and a spherical structure with range of 140 km(long-range scale) in the linear model of coregionalization fitted. The spatial distribution features of seven heavy metals at short-range scale reflect 'spot-like' or 'stripe-like' local-scale spatial variations; the spatial distribution features of the seven heavy metals at long-range scale represent 'slice-like' regional-scale spatial variations. At local scale, Zn, Cr, Ni,Cu, Pb and Cd are derived primarily from parent materials of Hainan Island, Leizhou Peninsula and Guangxi land, whose spatial distribution characteristics are controlled by granularity of sediments, while As is influenced dominantly by human pollution components from Hainan Island and Leizhou Peninsula. At regional scale, Zn,Cr, Ni and Cu originate primarily from parent rock materials of Leizhou Peninsula and Hainan Island, secondly from Guangxi land; As originated primarily from parent rock materials from Hainan Island, secondly from Leizhou Peninsula and Guangxi land. These metals are transported and migrated with sediments dominated by the anticlockwise circulation of Beibu Gulf year-round, deposited in 'convergence center', forming the whole sedimentary pattern in direction of NWW-NNW at regional scale. The difference in distribution type between As and other metals at regional scale is mainly due to their different geochemical behavior. | ZHAO Jianru CHU Fengyou JIN Xianglong WU Qingsong YANG Kehong GE Qian JIN Lu | 2015 | Acta Oceanologica Sinica2015,34,12: | 4 |
| 5 | Rifting characteristics of eastern subbasin of South China Sea and its spreading pattern显示文摘With processing and interpretation of 25 000 km full-coverage multibeam swath data from the eastern South China Sea, it is found that NE-trending and NW-trending linear morphological featuressuch as scarps, horsts and grabens, govem the central part (14°~ 17° N) of eastern subbasin.Compared with reflection seismic profiles, these NE-trending linear morpho-structures are considered to be the representation of basement structures on seabed and can be divided into three linear structural zones. The trend of the central zone is NE45°~50° occurring around extinct spreading center, the trend of the second zone is NE70°~78° on both sides of the central one and the trend of the third zone is about NE60° just on the north of the second one. These three NE-trending linear zones are formed in late-stage NW-SE-trending seafloor spreading of the eastern subbasin along NW-trending linear faults, and respectively correspond to three spreading episodes: 17.0~19.0 Ma (5d-5e), 19.0~21.0 Ma (5e-6a) and 21.0~24.2 Ma (6a-6c) based on the contrast of morpho-structures to magnetic lineation anomalies. | Li Jiabiao Jin Xianglong Gao Jinyao | 2002 | Acta Oceanologica Sinica2002,21,1: | 3 |
| 6 | Development and Evaluation of a Loop-mediated Isothermal Amplification Assay for the Rapid Detection and Identification of Pectobacterium carotovorum on Celery in the Field显示文摘Pectobacterium carotovorum is the causal agent of bacterial soft rot in a wide range of vegetable host species.Once P.carotovorum infects the plant,the spread of the disease is difficult to control.In this study,a rapid and sensitive method based on loop-mediated isothermal amplification(LAMP)was developed for detecting P.carotovorum in celery with soft rot using a primer set designed from the pmrA conserved sequence of P.carotovorum.The specificity of the LAMP primer set for P.carotovorum was extensively validated on both P.carotovorum strains and nontarget strains.The sensitivity was 1 pg of P.carotovorum genomic DNA,which demonstrated 10 times more sensitive than the conventional PCR assay.LAMP was also used to detect P.carotovorum in bacterial suspension.The lowest detection concentration was 104 CFU·mL^−1.In addition,a LAMP assay,in conjunction with a crude DNA extraction method,was successfully performed on P.carotovorum-infected samples derived from both artificially and naturally infected plants.In summary,the LAMP assay established in this study constitutes a simple,sensitive,and rapid method for the detection of P.carotovorum,and has potential application in the control of celery soft rot disease through early detection. | Yanxia Shi Zhiwen Jin Xianglong Meng Lixue Wang Xuewen Xie Ali Chai Baoju Li | 2020 | Horticultural Plant Journal2020,6,5: | 3 |
| 7 | Preliminary considerations on the potential influence of submarine fans on marine delimitation显示文摘The complex issues associated with marine delineation for the outer limit of continental shelf and the boundary delimitation have provoked considerable attention among researchers in a variety of academic circles,particularly in the juristic filed and the geo-science field.In the present contribution,we start from an overview of submarine fans,as one of common types of sediment-deposit bodies in the ocean,and explore the related geological features which may be of relevance to the marine delimitation in accordance with the 1982 United Nations Convention on the Law of the Sea.We carry out a comparative assessment of certain significant geological features of submarine fans,using the Bengal fan as an example,which is the biggest submarine fan in the world and represents an important factor in the maritime boundary dispute between the neighboring states currently.The relationship between the special geological bodies and the international principle in the 1982 United Nations Convention can be established by combining geological and juristic analyses.This preliminary observation on the effect of submarine bodies both on the marine entitlement and boundary delimitation indicates that it is important for the international society to appropriately deal with this problem so that the marine right of any state can be protected. | QIU Wenxian JIN Xianglong SCHOFIELD Clive LI Mingbi | 2013 | Acta Oceanologica Sinica2013,32,12: | 2 |
| 8 | Tephra records from abyssal sediments off western Sumatra in recent 135 ka: evidence from Core IR-GC1显示文摘Three volcanic ash layers were identified in a deep-sea Core IR-GC1 from the north-eastern Indian Ocean, adjacent to western Indonesian arc. They were dominated by glass shards with minor mineral crystals, such as plagioclase, biotite, and hornblende. According to the morphology and major element compositions of the representative glass shards, combined with the δ18O-based age, it is suggested that ash Layer A is correlated to the youngest Toba tuff(YTT), Layer B is supposed to be associated with a new eruption of Toba caldera in an age of 98 to 100 ka. Ash Layer C is different the geochemistry characteristics than those of Layer A and Layer B, suggesting that Layer C was not originated from Toba but registered another volcanic eruption event. | QIU Zhongyan HAN Xiqiu JIN Xianglong WANG Yejian ZHU Jihao | 2014 | Acta Oceanologica Sinica2014,33,12: | 1 |
| 9 | Active structural acoustic control of an elastic cylindrical shell coupled to a two-stage vibration isolation system显示文摘 | Ma Xianglong Jin Guoyong Liu Zhigang | 2014 | International Journal of Mechanical Sciences2014,79,: | 1 |
| 10 | Genome sequence of Gossypium anomalum facilitates interspecific introgression breeding显示文摘Crop wild relatives are an important reservoir of natural biodiversity. However, incorporating wild geneticdiversity into breeding programs is often hampered by reproductive barriers and a lack of accurate genomicinformation. We assembled a high-quality, accurately centromere-anchored genome of Gossypium anomalum, a stress-tolerant wild cotton species. We provided a strategy to discover and transfer agronomicallyvaluable genes from wild diploid species to tetraploid cotton cultivars. With a (Gossypium hirsutum 3 G.anomalum)2 hexaploid as a bridge parent, we developed a set of 74 diploid chromosome segment substitution lines (CSSLs) of the wild cotton species G. anomalum in the G. hirsutum background. This set of CSSLsincluded 70 homozygous substitutions and four heterozygous substitutions, and it collectively containedabout 72.22% of the G. anomalum genome. Twenty-four quantitative trait loci associated with plant height,yield, and fiber qualities were detected on 15 substitution segments. Integrating the reference genome withagronomic trait evaluation of the CSSLs enabled location and cloning of two G. anomalum genes thatencode peroxiredoxin and putative callose synthase 8, respectively, conferring drought tolerance andimproving fiber strength. We have demonstrated the power of a high-quality wild-species reference genomefor identifying agronomically valuable alleles to facilitate interspecific introgression breeding in crops. | Zhenzhen Xu Jiedan Chen Shan Meng Peng Xu Caijiao Zhai Fang Huang Qi Guo Liang Zhao Yonggang Quan Yixin Shangguan Zhuang Meng Tian Wen Ya Zhang Xianggui Zhang Jun Zhao Jianwen Xu Jianguang Liu Jin Gao Wanchao Ni Xianglong Chen Wei Ji Nanyi Wang Xiaoxi Lu Shihong Wang Kai Wang Tianzhen Zhang Xinlian Shen | 2022 | Plant Communications2022,3,5: | 1 |
| 11 | Mineralogy and geochemistry of hydrothermal precipitates from Kairei hydrothermal field, Central Indian Ridge显示文摘 | Yejian Wang Xiqiu Han Sven Petersen Xianglong Jin Zhongyan Qiu Jihao Zhu | 2014 | Marine Geology2014,,: | 1 |
| 12 | Alternatingly stacked thin film electrodes-based compact aqueous hybrid electrochemical capacitors for hundred-volts AC line filtering显示文摘Filtering capacitor with compact configuration and a wide range of operating voltage has been attracting increasing attention for the smooth conversion of the electric signal in modern circuits.Lossless integration of capacitor units can be regarded as one of the efficient ways to achieve a wider voltage range,which has not yet been fully conquered due to the lack of rational designs of the electrode structure and integration technology.This study presents an alternatingly stacked assemble technology to conveniently fabricate compact aqueous hybrid integrated filtering capacitors on a large scale,in which a unit consists of rGO/MXene composite film as a negative electrode and PEDOT:PSS based film as a positive electrode.Benefiting from the synergistic effect of rGO and MXene components,and morphological characteristics of PEDOT:PSS,the capacitor unit exhibits outstanding AC line filtering with a large areal specific energy density of 1,015 μF V^(2)cm^(-2)(0.28 μW h cm^(-2)) at 120 Hz.After rational integration,the assembled capacitors present compact/lightweight configuration and lossless frequency response,as reflected by almost constant resistor-capacitor time constant of 0.2 ms and dissipation factor of 15% at120 Hz,identical to those of the single capacitor unit.Apart from standing alone steadily on a flower,a small volume(only 8.1 cm^(3)) of the integrated capacitor with 70 units connected in series achieves hundred-volts alternating current line filtering,which is superior to most reported filtering capacitors with sandwich configuration.This study provides insight into the fabrication and application of compact/ultralight filtering capacitors with lossless frequency response,and a wide range of operating voltage. | Lixia Wang Lingyu Zhao Meirong Song Lixia Xie Xiaopeng Wang Xin Li Yanjie Huang Min Wei Qiu Jin Xianglong Meng Yang Zhao | 2023 | Journal of Energy Chemistry2023,,3: | 0 |
| 13 | Effect of natural prolongation with geological features on maritime delimitation显示文摘The United Nations Convention on the Law of the Sea entitled the coastal States to naturally extend the continental shelf, which has caused more drastic disputes of maritime delimitation. This paper devotes to clarifying the significant concept of natural prolongation through an effect method combing the legal principles and technical analysis. Firstly, the classic samples with respect of the development of geological features are traced. Based on these samples, the classification with a model is proposed in order to affirm the concept's significance under certain geomorphologic situations. Lastly, scientific analysis is used to present two potential prolongation situations and emphasize that all the technical analysis on maritime delimitation should be complied with international law and protect the common interest of all the mankind. | QIU Wenxian JIN Xianglong FANG Yinxia WANG Kui | 2017 | Acta Oceanologica Sinica2017,36,2: | 0 |
| 14 | Recent progress in submarine geosciences in China显示文摘In China submarine geosciences represents a newly established discipline of oceanography,focusing on the oceanic lithosphere,and its interface with the hydrosphere and biosphere.Recently,supported by the National High Technology Research and Development Program and other high-tech development projects,significant progress has been made in the development of advanced technologies and equipment.This enables the scientists in China to carry out explorations of the international seabed area in the Pacific Ocean and on the Southwest Indian Ridge.In addition,they have been active in the research activities associated the mid-ocean ridges and western Pacific marginal seas.It is anticipated that this research field will continue to be highly fruitful in the near future. | JIN Xianglong | 2013 | Acta Oceanologica Sinica2013,32,12: | 0 |
| 15 | Methods and procedures to determine the outer limits of the continental shelf beyond 200 nautical miles显示文摘This paper establishes techniques and methods to determine a variety of boundaries associated with 200nautical miles beyond the continental shelf.The methods,based on topography,slope and second-derivative profile integrated analysis,are now able to identify automatically the foot of the continental slope(FOS).By analyzing the sedimentary profile,the points of 1%sediment thickness are recognized.Through the intersection,cut,deletion and mergence calculation of the extrapolated data set of fixed-point series,the method succeeds in generating automatically the extrapolated boundaries,including the FOS+60 M line,the 350 M line,and the 2 500 m+100 M line.In addition,based on the automatic analysis of the topographic profile,it can be applied to determine rapidly the points of maximum water depth.Taking the northern Okinawa Trough(OT)as an example,these methods are used to calculate and examine the boundaries included in the Submission by the People's Republic of China Concerning the Outer Limits of the Continental Shelf beyond 200 Nautical miles in Part of the East China Sea(ECS);the boundaries thus derived have a solid scientific and rational basis. | WU Ziyin LI Jiabiao JIN Xianglong FANG Yinxia SHANG Jihong LI Shoujun | 2013 | Acta Oceanologica Sinica2013,32,12: | 0 |