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Acoustic Velocity-Based Inversion of the Physical Properties of Sea Ice in the Central Arctic Region

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Journal of Ocean University of China 2024年第5期23卷 1213-1220页

作者： KONG Yadong xing junhui XU Haowei XU Chong Key Laboratory of Submarine Geosciences and Prospecting Techniques Ministry of Education(MOE)and College of Marine GeosciencesOcean University of ChinaQingdao 266100China Laboratory for Marine Mineral Resources Qingdao Marine Science and Technology CenterQingdao 266071China

Studying the Arctic sea ice contributes to a comprehensive understanding of the climate system in polar regions and offers valuable insights into the interplay between polar climate change and the global climate and *** of the key research aspects is the investigation of the temperature,salinity,and density parameters of sea ice to obtain essential *** the 11th Chinese National Arctic Research Expedition,acoustic velocity was measured on an ice core at a short-term ice station,however,temperature,salinity,and density were not *** the present work,we utilized a genetic algorithm to invert these obtained acoustic velocity data to sea ice temperature,salinity,and density parameters on the basis of the relationship between acoustic velocity and the physical properties of Arctic summer sea *** validated the effectiveness of this inversion procedure by comparing its findings with those of other *** results indicate that within the normalized depth range of 0.43-0.94,the ranges for temperature,salinity,and density are -0.48--0.29℃,1.63-3.35,and 793.1-904.1 kg m^(-3),respectively.

关键词： acoustic velocity Arctic sea ice inversion of sea ice properties genetic algorithm

Inversion of Seabed Geotechnical Properties in the Arctic Chukchi Deep Sea Basin Based on Time Domain Adaptive Search Matching Algorithm

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Journal of Ocean University of China 2024年第4期23卷 933-942页

作者： AN Long XU Chong xing junhui GONG Wei JIANG Xiaodian XU Haowei LIU Chuang YANG Boxue Jiangsu Automation Research Institute Lianyungang 222061China Key Laboratory of Submarine Geosciences and Prospecting Techniques MOE and College of Marine GeosciencesOcean University of ChinaQingdao 266100China Laboratory for Marine Mineral Resources Qingdao Marine Science and Technology CenterQingdao 266071China

The chirp sub-bottom profiler,for its high resolution,easy accessibility and cost-effectiveness,has been widely used in acoustic *** this paper,the acoustic impedance and grain size compositions were obtained based on the chirp sub-bottom profiler data collected in the Chukchi Plateau area during the 11th Arctic Expedition of *** time-domain adaptive search matching algorithm was used and validated on our established theoretical *** misfit between the inversion result and the theoretical model is less than 0.067%.The grain size was calculated according to the empirical relationship between the acoustic impedance and the grain size of the *** average acoustic impedance of sub-seafloor strata is 2.5026×10^(6) kg(s m^(2))^(-1)and the average grain size(θvalue)of the seafloor surface sediment is 7.1498,indicating the predominant occurrence of very fine silt sediment in the study *** of the inversion results and the laboratory measurements of nearby borehole samples shows that they are in general agreement.

关键词： time domain adaptive search matching algorithm acoustic impedance inversion sedimentary grain size Arctic Ocean Chukchi Deep Sea Basin

Venoarterial extracorporeal membrane oxygenation in acute myocardial infarction

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Emergency and Critical Care Medicine 2024年第1期4卷 1-3页

作者： junhui xing Department of Cardiology The First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina.

IntroductionMortality and complications associated with acute myocardial infarction(AMI)have gradually decreased in the era of reperfusion ***,the outcomes are still poor for AMI patients with severe complications.[1]The quest for further improvement of the use of active mechanical circulatory support(MCS)devices is rapidly *** extracorporeal membrane oxygenation(VA-ECMO)is a form of heart-lung bypass that offers temporary mechanical support and simultaneous extracorporeal gas exchange,usually acting as a bridge to *** has been widely used since 1972,after its *** extracorporeal membrane oxygenation provides cardiopulmonary support and is used to rescue patients with cardiopulmonary *** use of VA-ECMO after AMI with severe complications is *** studies have demonstrated a significant increase in survival using VA-ECMO in patients with AMI,and early VA-ECMO initiation yields better *** review article is aimed at evaluating the use of VA-ECMO in patients with AMI.[2]

关键词： extracorporeal infarction arterial

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基于重力数据的翁通爪哇海台密度结构研究

中国海洋大学学报（自然科学版） 2024年第11期54卷 103-115页

作者：于鸿铭宫伟徐冲邢军辉林琦中国海洋大学海洋地球科学学院山东青岛266100 中国海洋大学海底科学与探测技术教育部重点实验室山东青岛266100 自然资源部中国地质调查局青岛海洋地质研究所山东青岛266237

翁通爪哇海台位于太平洋西侧,是世界上体积最大、地壳最厚的海台,也是少数正在与岛弧汇聚的海台之一。本文利用可用的自由空气重力异常数据反演了翁通爪哇海台的地壳密度结构。结果显示,研究区内翁通爪哇海台的地壳密度由南西向北东逐... 详细信息

翁通爪哇海台位于太平洋西侧,是世界上体积最大、地壳最厚的海台,也是少数正在与岛弧汇聚的海台之一。本文利用可用的自由空气重力异常数据反演了翁通爪哇海台的地壳密度结构。结果显示,研究区内翁通爪哇海台的地壳密度由南西向北东逐渐降低,在研究区南西侧的斯图尔特隆起附近有高密度入侵现象。本文认为,海台地壳密度差异是由于92 Ma前的第二期地幔柱事件中,基性较强、密度较大的新一期岩浆对原始海台不同区域的差异性影响造成的;高密度入侵可以用20~25 Ma前翁通爪哇海台与所罗门弧的碰撞事件来解释,该碰撞事件使海台地壳深部的部分高密度玄武岩熔体沿斯图尔特隆起内部新产生的或被重新激活的断层、裂缝上升,形成高密度入侵体。

关键词：翁通爪哇海台洋底高原密度反演地壳密度结构

Seabed Physical Parameter Research Based on Active-Source OBS Data in the Chukchi Sea Shelf of the Arctic

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Journal of Ocean University of China 2023年第3期22卷 675-682页

作者： ZHEN Sheng xing junhui JIANG Xiaodian Key Laboratory of Submarine Geosciences and Prospecting Techniques MOE and College of Marine GeosciencesOcean University of ChinaQingdao 266100China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China

The acquisition of seabed physical parameters is one of the focuses of marine acoustic ***,the activesource ocean bottom seismometer(OBS)detection method in the marine geophysical research is rarely used to acquire seabed physical parameters,and less work is performed in the *** this study,two active-source OBS data collected from the 9th and 11th Chinese National Arctic Research Expedition(CHINARE)are selected to obtain the physical parameters of seabed *** kinds of energy spark are used as the active sources,while the cost function inversion method is used based on the arrival time difference between the reflected and direct *** thickness and sound velocity of the sediment layers are obtained by inversion,and the empirical formula is used to calculate the physical parameters of the seabed sediment,which are compared with the measured *** cost function inversion method based on the time difference of arrival of the reflected and direct waves is tested to be effective and feasible in the inversion of seabed parameters from active-source OBS *** method is further applied to obtain the physical parameters of Chukchi seabed sediments,which provides the idea and reference for the application of marine geophysical activesource OBS detection technology in the inversion of polar seabed physical parameters.

关键词： physical parameters of seafloor sediments ocean bottom seismometer(OBS) Arctic Chukchi Sea

Seismic Images of Shallow Waters over the Shatsky Rise in the Northwest Pacific Ocean

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Journal of Ocean University of China 2021年第5期20卷 1079-1088页

作者： ZHANG Jinchang LUO Yiming xing junhui Key Laboratory of Ocean and Marginal Sea Geology South China Sea Institute of OceanologyInnovation Academy of South China Sea Ecology and Environmental EngineeringChinese Academy of SciencesGuangzhou 510301China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 511458China China-Pakistan Joint Research Center on Earth Sciences CAS-HECIslamabad 45320Pakistan Department of Ocean Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Key Laboratory of Submarine Geosciences and Prospecting Techniques MOE and College of Marine GeosciencesOcean University of ChinaQingdao 266100China

Recent studies have demonstrated the ability of seismic oceanography to reveal finescale vertical structures of water column in the oceans based on multichannel seismic(MCS)reflection *** information can clarify the dynamic processes of mixing,exchange,and translation of water mass and *** this study,we present four MCS lines and satellite data to show high-resolution seismic images of shallow waters over the Shatsky Rise in the Northwest Pacific Ocean,where the Kuroshio Exten-sion passes and *** of our MCS transects crossed the center of an anticyclonic warm eddy on August 28,2010,confirmed by satellite data such as sea level anomaly(SLA),geostrophic current anomaly(GCA),and sea surface temperature anomaly(SSTa).The seismic image showed that the eddy vertical structure featured a bowl-like shape and onion-like internal *** slightly tilted(2°-3°)at the boundaries between water masses with differing *** addition,the discrepancies in SLA,GCA,and SSTa between water masses resulted in different seismic *** water masses with high SLA,anticyclonic GCA and positive SSTa featured high-amplitude,continuous,clear-layered,and non-linear reflections,whereas those with low SLA,cyclonic GCA,and negative SSTa were associated with weak,fragmented,less stratification,and more linear reflectors.

关键词： Kuroshio Extension mesoscale oceanic eddies vertical structure submesoscale structure seismic oceanography mul-tichannel seismic reflection

Tectonics of the Solomon Sea Basin from Vertical Gravity Gradient and Seismic Data

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Acta Geologica Sinica(English Edition) 2023年第2期97卷 610-622页

作者： GONG Wei xing junhui MENG Qingwei xing Lei XU Chong ZHANG Hao Key Laboratory of Submarine Geosciences and Prospecting Techniques Ministry of Educationand College of Marine GeosciencesOcean University of ChinaQingdaoShandong 266100China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdaoShandong 266237China Chinese Academy of Geological Sciences Beijing 100037China

The Solomon Sea Basin is a Cenozoic back-arc spreading basin within the convergence system of the Pacific and Indo-Australian *** the background of subduction polarity reversal,the current Solomon Sea Basin gradually formed a rhombic morphology with the subduction of the basin along the New Britain Trench and the Trobriand *** analyzing the vertical gravity gradient,natural earthquake and seismic reflection data,this study determines the structural characteristics of the Solomon Sea *** was found that the tectonics of the basin are characterized by the original expansion structure within the central part in addition to the structure induced by the latest subduction along the basin *** original spreading structure of the basin presented an east–west linear graben and horst controlled by normal faults during the basin expansion *** a result of the subduction and slab-pull of the Solomon Sea Basin,extensional structure belts parallel to the New Britain Trench formed along the basin margin.

关键词： vertical gravity gradient seismic data tectonics New Britain Trench Solomon Sea Basin

The Subduction Structure Beneath the New Britain Island Arc and the Adjacent Region from Double-Difference Tomography

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Journal of Ocean University of China 2023年第1期22卷 107-118页

作者： ZHANG Hao GONG Wei xing junhui XU Chong LI Chaoyang Key Laboratory of Submarine Geosciences and Prospecting Techniques Ministry of Educationand College of Marine GeosciencesOcean University of ChinaQingdao 266100China Laboratory for Marine Mineral Resources Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China College of Earth Science and Engineering Shandong University of Science and TechnologyQingdao 266590China

We applied double-difference tomography to relocate seismic events and determine the lithospheric velocity structure beneath the New Britain Island arc and the South Bismarck Sea Basin,based on the local P wave arrival time dataset collected by the International Seismological *** of the seismic relocation and velocity inversion show that the subduction of Solomon Sea Plate along the New Britain Trench is spatially different above 150 km,and the subduction angle of the slab on the west side is higher than that on the east *** relocated earthquakes also show that there are double seismic zones at the depths of about 30–90km beneath the New Britain Island *** velocity structure shows that the dehydration of the subducting slab caused the low-velocity anomalies in mantle wedge above the slab,which are associated with the magmatic activities around the New Guinea-New Britain Island ***,it shows that there is another low-velocity anomaly zone beneath the Bismarck mid-oceanic ridge with spatial *** the west of the Bismarck mid-oceanic ridge,the low-velocity anomaly is weakly connected to the subducted Solomon Sea ***,the low-velocity anomaly beneath the Manus Sea Basin is highly intertwined to the subducting slab and its mantle wedge,indicating that the subduction of the Solomon Sea Plate might be a key deep dynamic factor that drives the spreading of the Manus Sea Basin and the separation of the Bismarck Plate.

关键词： New Britain Trench Bismarck Sea Basin Manus Sea Basin double-difference tomography

保护动机理论的分阶段访谈联合运动指导改善中青年2型糖尿病患者心理痛苦、疲劳和遵医行为的价值

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中国健康心理学杂志 2024年第10期32卷 1491-1496页

作者：高月乔邢军辉安淑敏郑州大学第一附属医院内分泌与代谢病科 450052 郑州大学第一附属医院心血管内科

目的:基于保护动机理论(PMT)的分阶段访谈联合运动指导改善中青年2型糖尿病(T2DM)患者心理痛苦、疲劳和遵医行为的价值。方法:选取2021年5月至2024年5月某院收治的中青年T2DM患者78例,以计算机随机数字生成表法分为常规组、观察组,各39... 详细信息

目的:基于保护动机理论(PMT)的分阶段访谈联合运动指导改善中青年2型糖尿病(T2DM)患者心理痛苦、疲劳和遵医行为的价值。方法:选取2021年5月至2024年5月某院收治的中青年T2DM患者78例,以计算机随机数字生成表法分为常规组、观察组,各39例。常规组行常规干预方式,观察组行基于PMT的分阶段访谈联合运动指导干预。比较两组心理痛苦、疲劳、遵医行为及生活质量。结果:干预后观察组中文版糖尿病痛苦量表(DDS)各维度评分均低于常规组(t=3.376,2.676,8.222,4.540;P<0.05);干预后观察组中文版多维疲劳量表(MFI-20)评分低于常规组(t=3.441,P<0.05);干预后观察组遵医依从性评定量表(MARS)评分高于常规组(t=2.281,P<0.05);干预后观察组2型糖尿病患者生存质量量表(DMQLS)评分高于常规组(t=5.321,P<0.001)。结论:基于PMT的分阶段访谈联合运动指导可减轻中青年T2DM患者心理痛苦、疲劳状态,改善遵医行为及生活质量。

关键词：中青年 2型糖尿病心理痛苦疲劳遵医行为保护动机理论分阶段访谈运动指导