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Thiamine-modified metabolic reprogramming of human pluripotent stem cell-derived cardiomyocyte under space microgravity

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Signal Transduction and Targeted Therapy 2024年第5期9卷 2132-2142页

作者： Xinglong Han Lina Qu Miao yu Lingqun Ye Liujia Shi Guangfu Ye Jingsi Yang Yaning Wang Hao fan Yong Wang Yingjun tan Chunyan Wang Qi Li Wei Lei Jianghai Chen Zhaoxia Liu Zhenya Shen Yinghui Li Shijun Hu Department of Cardiovascular Surgery of the First Affiliated Hospital&Institute for Cardiovascular Science State Key Laboratory of Radiation Medicine and ProtectionSuzhou Medical CollegeSoochow UniversitySuzhouChina State Key Laboratory of Space Medicine China Astronaut Research and Training CenterBeijingChina Department of Hand Surgery Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina

During spaceflight,the cardiovascular system undergoes remarkable adaptation to microgravity and faces the risk of cardiac ***,the effects and mechanisms of microgravity on cardiac morphology,physiology,metabolism,and cellular biology need to be further *** China started constructing the China Space Station(CSS)in 2021,we have taken advantage of the Shenzhou-13 capsule to send human pluripotent stem cell-derived cardiomyocytes(hPSC-CMs)to the Tianhe core module of the *** this study,hPSC-CMs subjected to space microgravity showed decreased beating rate and abnormal intracellular calcium *** and transcriptomic analyses revealed a battery of metabolic remodeling of hPSC-CMs in spaceflight,especially thiamine *** microgravity condition blocked the thiamine intake in *** decline of thiamine utilization under microgravity or by its antagonistic analog amprolium affected the process of the tricarboxylic acid *** decreased ATP production,which led to cytoskeletal remodeling and calcium homeostasis imbalance in *** importantly,in vitro and in vivo studies suggest that thiamine supplementation could reverse the adaptive changes induced by simulated *** study represents the first astrobiological study on the China Space Station and lays a solid foundation for further aerospace biomedical *** data indicate that intervention of thiamine-modified metabolic reprogramming in human cardiomyocytes during spaceflight might be a feasible countermeasure against microgravity.

关键词： programming battery modified

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Leukocyte-Specific Morrbid Promotes Leukocyte Differentiation and Atherogenesis

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Research 2024年第2期2023卷 123-137页

作者： Di Xiang Lei Jiang Qiong yuan Yang yu Ruiming Liu Meiting Chen Zheng Kuai Wendy Zhang fan Yang Tingting Wu Zhiyu He Zuhui Ke Wanzi Hong pengcheng He Ning tan Yeying Sun Zhen Shi Xuebiao Wei Jianfang Luo Xiaoqiu tan yuqing Huo Gangjian Qin Chunxiang Zhang Department of Cardiology Key Laboratory of Medical ElectrophysiologyMinistry of EducationInstitute of Cardiovascular ResearchThe Affiliated Hospital of Southwest Medical UniversitySouthwest Medical UniversityLuzhouSichuan 646000China Department of Biomedical Engineering School of Medicine The University of Alabama at BirminghamBirminghamAL 35233USA Department of Cardiology.Guangdong Cardiovascular Institute Guangdong Provincial Key Laboratory of Coronary Heart Disease PreventionGuangdong Provincial Institute of Geriatric MedicineGuangdong General HospitalGuangdong Academy of Medical SciencesGuangzhouGuangdong 510100China Vascular Biology Center Medical College of GeorgiaAugusta UniversityAugustaGA 30912USA

Monocyte-to-M0/M1 macrophage differentiation with unclear molecular mechanisms is a pivotal cellular event in many cardiovascular diseases including *** non-coding RNAs(lncRNAs)are a group of protein expression regulators;however,the roles of monocyte-lncRNAs in macrophage differentiation and its related vascular diseases are still *** study aims to investigate whether the novel leukocyte-specific lncRNA Morrbid could regulate macrophage differentiation and *** identified that Morrbid was increased in monocytes and arterial walls from atherosclerotic mouse and from patients with *** cultured monocytes,Morrbid expression was markedly increased during monocyte to M0 macrophage differentiation with an additional increase during M0 macrophage-to-M1 macrophage *** differentiation stimuli-induced monocyte-macrophage differentiation and the macrophage activity were inhibited by Morrbid ***,overexpression of Morrbid alone was sufficient to elicit the monocyte-macrophage *** role of Morrbid in monocyte-macrophage differentiation was also identified in vivo in atherosclerotic mice and was verified in Morrbid knockout *** identified that PI3-kinase/Akt was involved in the up-regulation of Morrbid expression,whereas s100a10 was involved in Morrbid-mediated effect on macrophage *** provide a proof of concept of Morrbid in pathogenesis of monocyte/macrophage-related vascular disease,we applied an acute atherosclerosis model in *** results revealed that overexpression of Morrbid enhanced but monocyte/macrophage-specific Morrbid knockout inhibited the monocytes/macrophages recruitment and atherosclerotic lesion formation in *** results suggest that Morrbid is a novel biomarker and a modulator of monocyte-macrophage phenotypes,which is involved in atherogenesis.

关键词： inhibited Mor markedly

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Screening of colorectal cancer: Methods and strategies

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World Journal of Clinical Oncology 2024年第7期15卷 799-805页

作者： Zhen Liao Jin-Tao Guo fan Yang Shu-peng Wang Si-yu Sun Department of Gastroenterology Engineering Research Center of Ministry of Education for Minimally Invasive Gastrointestinal Endoscopic TechniquesShengjing Hospital of China Medical UniversityShenyang 110004Liaoning ProvinceChina

Colorectal cancer(CRC)has high incidence and mortality rates,and the em-ergence and application of CRC screening have helped us effectively control the occurrence and development of ***,common international screening methods include tests based on feces and blood,and examination methods that allow for visualization,such as sigmoidoscopy and *** methods have been widely used,whereas others such as multi-target stool RNA test are still being explored and developed,and are expected to become front-line screening methods for CRC in the *** choice of screening method is affected by external conditions and the patients'situation,and the clinician must choose an appropriate strategy according to the actual situation and the patient's *** article introduces various CRC screening methods and analyzes the factors relevant to the screening strategy.

关键词： Colorectal cancer Screening Stool-based test Endoscopic examination Computed tomography colonography Blood-based test

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Surgical timing and long-term outcomes in patients with severe haemorrhagic spinal cord cavernous malformations

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Stroke & Vascular Neurology 2024年第4期9卷 439-445页

作者： An Tian Ziwei Cui Jian Ren Yeqing Ren Ming Ye Guilin Li Chuan He Xiaoyu Li Gao Zeng peng Hu Yongjie Ma Jiaxing yu Jingwei Li Lisong Bian fan Yang Qianwen Li Feng Ling Tao Hong Liyong Sun Hongqi Zhang Department of Neurosurgery Xuanwu Hospital Capital Medical UniversityBeijingChina Department of Neurosurgery Beijing Haidian HospitalBeijingChina Department of Neurosurgery United Family HealthcareBeijingChina Department of Radiology Xuanwu Hospital Capital Medical UniversityBeijingChina

Background Surgical resection of the lesions remains the main treatment method for most symptomatic spinal cord cavernous malformations(SCCMs)to eliminate the occupation and associated subsequent lifelong haemorrhagic ***,the timing of surgical intervention remains controversial,especially for patients in the acute stage after severe *** Patients diagnosed with SCCMs who were surgically treated between January 2002 and December 2021 were selected and retrospectively *** Modified McCormick Scale(MMS)was used to evaluate neurological and disability *** medical information was reviewed,and all patients were followed up for at least 6 *** A total of 279 patients were ultimately *** regard to long-term outcomes,110(39.4%)patients improved,159(57.0%)remained unchanged and 10(3.6%)*** patients with an MMS score of 2–5 on admission,in univariate and multivariate analyses,a≤6 weeks period between onset and surgery(adjusted OR 3.211,95%CI 1.504 to 6.856,p=0.003)was a significant predictor of improved *** 69 patients who first presented with severe haemorrhage,undergoing surgery within 6 weeks of the onset of severe haemorrhage(adjusted OR 4.901,95%CI 1.126 to 21.325,p=0.034)was significantly associated with improvement of MMS *** Surgical timing can influence the long-term outcome of *** patients with symptomatic SCCMs,especially those with severe haemorrhage,early surgical intervention within 6 weeks can provide more benefit.

关键词： patients Surgical haemorrhagic

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酒精湿化法调配压实膨润土缓冲回填材料含水率研究

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岩土力学 2024年第1期45卷 235-244页

作者：彭宇张虎元周光平谭煜兰州大学西部灾害与环境力学教育部重点实验室甘肃兰州730000 香港理工大学土木与环境工程学院中国香港

压实膨润土砌块在我国高放射性废物处置中发挥着缓冲回填工程屏障的作用。然而,膨润土材料塑性极强,水分极易拌和不均,易导致压实砌块干缩开裂,显著降低了砌块质量。提出一种采用酒精代替纯水来湿化膨润土的新方法,以提高压实膨润土质... 详细信息

压实膨润土砌块在我国高放射性废物处置中发挥着缓冲回填工程屏障的作用。然而,膨润土材料塑性极强,水分极易拌和不均,易导致压实砌块干缩开裂,显著降低了砌块质量。提出一种采用酒精代替纯水来湿化膨润土的新方法,以提高压实膨润土质量。对比喷水法,酒精湿化法中酒精浓度设计在5%~35%间。通过分析膨润土与酒精混合物的混合效率、黏附质量损失率、混合物中团聚体的含量、压实样干缩前后强度、干缩裂纹规律、干燥效率、膨胀性等指标综合评价酒精湿化压实膨润土样的适用性。试验结果表明:在相同含液率情况下,随酒精浓度增大,所得膨润土样的混合效率明显提高,黏附质量损失率及团聚体含量明显降低;压实样内团聚体与干缩裂纹及试样质量间具有较好对应关系。此外,酒精湿化法所得压实样在压实方向密度分布更均匀,干缩裂纹数量及宽度明显变小,风干试样剪切强度及膨胀性均与加纯水试样较为接近,压实样均匀性与完整性明显提高。新方法及相关成果可供我国高放废物缓冲回填砌块制备参考。

关键词：压实膨润土缓冲回填材料酒精湿化法含水率团聚体

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10B-doped MCP detector developed for neutron resonance imaging at Back-n white neutron source

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Nuclear Science and Techniques 2024年第8期35卷 58-68页

作者： Qiang Li Li‑Jiao Wang Jing‑yu tang Xiang‑Biao Qiu Zhen Chen Mao‑yuan Zhao Chang‑Jun Ning Kai Pan Wei Xu Tao Li Su‑peng Lu Han Yi Rui‑Rui fan Chang‑Qing Feng Rong Zhang Xiao‑Yang Sun Qi An Hao‑fan Bai Jiang‑Bo Bai Jie Bao Ping Cao Qi‑Ping Chen Yong‑Hao Chen Zeng‑Qi Cui An‑Chuan fan fan‑Zhen Feng Min‑Hao Gu Chang‑Cai Han Zi‑Jie Han Guo‑Zhu He Yong‑Cheng He Yang Hong Yi‑Wei Hu Han‑Xiong Huang Wei Jiang Zhi‑Jie Jiang Zheng‑Yao Jin Ling Kang Bo Li Gong Li Xiao Li Yang Li Jie Liu Rong Liu Shu‑Bin Liu Yi‑Na Liu Guang‑yuan Luan Jie Ren Zhi‑Zhou Ren Xi‑Chao Ruan Zhao‑Hui Song Kang Sun Zhi‑Xin tan Sheng‑Da tang Jin‑Cheng Wang peng‑Cheng Wang Zhao‑Hui Wang Zhong‑Wei Wen Xiao‑Guang Wu Xuan Wu Cong Xia Yong‑Ji yu Guo‑Hui Zhang Hang‑Chang Zhang Lin‑Hao Zhang Qi‑Wei Zhang Xian‑peng Zhang yu‑Liang Zhang yue Zhang Zhi‑Yong Zhang Zhi‑Hao Zhou Ke‑Jun Zhu Chong Zou Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China State Key Laboratory of Particle Detection and Electronics Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Dongguan Songshan Lake Future School Dongguan 523808China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230027China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China North Night Vision Science and Technology(Nanjing)Research Institute Co.Ltd Nanjing 211106China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Institute of Modern Physics Fudan UniversityShanghai 200433China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China China Academy of Engineering Physics Institute of Nuclear Physics and ChemistryMianyang 621900China USTC archaeometry lab University of Science and Technology of ChinaHefei 230026China Northwest Institute of Nuclear Technology Xi’an 710024China University of Chinese Academy of Sciences Beijing 100049China China Shipbuilding Trading Co. LtdBeijing 100044China

Neutron resonance imaging(NRI)has recently emerged as an appealing technique for neutron *** complexity surpasses that of conventional transmission imaging,as it requires a high demand for both a neutron source and ***,the progression of NRI technology has been sluggish since its inception in the 1980s,particularly considering the limited studies analyzing the neutron energy range above *** white neutron source(Back-n)at the China Spallation Neutron Source(CSNS)provides favorable beam conditions for the development of the NRI technique over a wide neutron energy range from eV to ***-sensitive microchannel plates(MCP)have emerged as a cutting-edge tool in the field of neutron detection owing to their high temporal and spatial resolutions,high detection efficiency,and low *** this study,we report the development of a 10B-doped MCP detector,along with its associated electronics,data processing system,and NRI experiments at the *** heavy elements such as gold,silver,tungsten,and indium can be easily identified in the transmission images by their characteristic resonance peaks in the 1–100 eV energy range;the more difficult medium-weight elements such as iron,copper,and aluminum with resonance peaks in the 1–100 keV energy range can also be *** particular,results in the neutron energy range of dozens of keV(Aluminum)are reported here for the first time.

关键词： Neutron resonance imaging 10B doped MCP detector White neutron source Sample nuclide identification

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OsNLP3 enhances grain weight and reduces grain chalkiness in rice

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Plant Communications 2024年第10期5卷 82-99页

作者： Liang-Qi Sun yu Bai Jie Wu Shi-Jun fan Si-Yan Chen Zheng-Yi Zhang Jin-Qiu Xia Shi-Mei Wang yu-Ping Wang peng Qin Shi-Gui Li Ping Xu Zhong Zhao ChengBin Xiang Zi-Sheng Zhang Division of Life Sciences and Medicine Division of Molecular&Cell BiophysicsHefei National Science Center for Interdisciplinary Sciences at the MicroscaleUniversity of Science and Technology of ChinaThe Innovation Academy of Seed DesignChinese Academy of SciencesHefeiAnhui Province 230027China Experimental Center of Engineering and Materials Science University of Science and Technology of ChinaHefei 230027China Rice Research Institute Anhui Academy of Agricultural ScienceHefeiChina State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Rice Research InstituteSichuan Agricultural UniversityChengduSichuanChina Shanghai Key Laboratory of Plant Functional Genomics and Resources Shanghai Chenshan Botanical GardenShanghai Chenshan Plant Science Research CenterChinese Academy of SciencesShanghaiChina

Grain weight,a key determinant of yield in rice(Oryza sativa L.),is governed primarily by genetic factors,whereas grain chalkiness,a detriment to grain quality,is intertwined with environmental factors such as mineral ***(N)is recognized for its effect on grain chalkiness,but the underlying molecular mechanisms remain to be *** study revealed the pivotal role of rice NODULE INCEPTION-LIKE PROTEIN 3(OsNLP3)in simultaneously regulating grain weight and grain *** investigation showed that loss of OsNLP3 leads to a reduction in both grain weight and dimension,in contrast to the enhancement observed with OsNLP3 ***3 directly suppresses the expression of OsCEP6.1 and OsNF-YA8,which were identified as negative regulators associated with grain ***,two novel regulatory modules,OsNLP3-OsCEP6.1 and OsNLP3-OsNF-YA8,were identified as key players in grain weight ***,the OsNLP3-OsNF-YA8 module not only increases grain weight but also mitigates grain chalkiness in response to *** research clarifies the molecular mechanisms that orchestrate grain weight through the OsNLP3-OsCEP6.1 and OsNLP3-OsNF-YA8 modules,highlighting the pivotal role of the OsNLP3-OsNF-YA8 module in alleviating grain *** findings reveal potential targets for simultaneous enhancement of rice yield and quality.

关键词： OsNLP3 OsCEP6.1 OsNF-YA8 grain weight grain chalkiness rice Oryza sativa L.

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LLM-105的分子间相互作用和热力学性质

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物理学报 2024年第4期73卷 235-244页

作者：范俊宇高楠王鹏举苏艳太原师范学院物理系晋中030619 台州学院材料科学与工程学院台州318000 之江实验室杭州311100 大连理工大学三束材料改性教育部重点实验室大连116024

应用第一性原理可以计算含能材料0 K下的结构和物理性质,但温度效应的缺失通常会导致计算数据与实验结果产生偏差.同时,与温度相关的热力学参数是含能材料在宏观和介观尺度下建模的关键输入.为此,本文以高能低感炸药1-氧-2,6-二氨基-3,5... 详细信息

应用第一性原理可以计算含能材料0 K下的结构和物理性质,但温度效应的缺失通常会导致计算数据与实验结果产生偏差.同时,与温度相关的热力学参数是含能材料在宏观和介观尺度下建模的关键输入.为此,本文以高能低感炸药1-氧-2,6-二氨基-3,5-二硝基吡嗪(LLM-105)为研究体系,基于准简谐近似,采用色散修正的密度泛函理论研究温度加载下LLM-105的分子间相互作用和热力学性质.晶格参数和热膨胀系数的演化表明LLM-105分子间相互作用具有强烈的各向异性,其中b轴方向(分子层间)的膨胀率远高于ac平面(分子层内).Hirshfeld表面及其指纹图分析进一步证实LLM-105的分子间相互作用主要取决于O···H构成的氢键.结合Mulliken布居数和结构分析,温度加载下氢键相互作用的变化可诱发硝基旋转,并使得C—NO_(2)键的强度明显减弱,为高温分解反应的触发键提供了理论依据.此外,本文计算了等容和等压条件下的热容、熵以及等温和绝热条件下的体模量等基础热力学参数.其中绝热条件下的体模量与实验值吻合,同时体模量随温度的演化反映了LLM-105在温度加载下的软化行为.上述理论研究可用于构建含能材料在介观和宏观尺度下的模型,也为测量原子分子水平下的热力学性质提供了重要的参考价值.

关键词： LLM-105 热力学性质分子间相互作用准简谐近似

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骨外尤因肉瘤的影像学表现

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中国医学影像学杂志 2024年第6期32卷 599-603页

作者：史凤霞刘宇刘鹏谭显政范立新湖南省人民医院放射科湖南长沙410005 湖南省人民医院病理科湖南长沙410005

目的探讨骨外尤因肉瘤(EES)的影像学表现和临床病理特征。资料与方法回顾性分析2014年1月—2023年1月湖南省人民医院经手术病理证实的14例EES的临床、影像学资料及病理特征,其中7例行CT检查(增强5例),9例行MRI检查(增强8例)。结果病... 详细信息

目的探讨骨外尤因肉瘤(EES)的影像学表现和临床病理特征。资料与方法回顾性分析2014年1月—2023年1月湖南省人民医院经手术病理证实的14例EES的临床、影像学资料及病理特征,其中7例行CT检查(增强5例),9例行MRI检查(增强8例)。结果病灶位于脊柱旁3例,右咽旁间隙1例,纵隔1例,左大腿1例,左耻骨旁软组织1例,腹膜后1例,盆腔1例,前列腺2例,左肾1例,胰腺1例,肝脏1例。14例EES均表现为单发实性肿块,13例呈团块状,病灶最大径线48.0~180.0 mm。8例密度或信号不均匀,8例可见囊变坏死,1例钙化。增强后8例呈不均匀强化,12例呈重度或中重度强化。10例形态不规则,11例有周围器官或组织侵犯,3例无周围器官和组织结构侵犯,5例合并周围骨质破坏,1例合并左肾静脉和下腔静脉癌栓和血栓、髂静脉血栓。结论 EES临床症状无特异性,影像上多表现为骨外软组织内体积巨大的实性肿块,密度或信号多不均匀,形态不规则,常伴囊变、坏死并侵犯周围器官或组织,影像学对术前诊断、临床分期、治疗及疗效评估具有重要价值。

关键词：尤因肉瘤磁共振成像体层摄影术 X线计算机病理学

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Sedimentary architecture of submarine channel-lobe systems under different seafloor topography:Insights from the Rovuma Basin offshore East Africa

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Petroleum Science 2024年第1期21卷 125-142页

作者： Mei Chen Sheng-He Wu Rui-Feng Wang Jia-Jia Zhang peng-Fei Xie Min Wang Xiao-Feng Wang Ji-Tao yu Qi-Cong Xiong State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing102249China College of Geosciences China University of Petroleum(Beijing)Beijing102249China Faculty of Geosciences University of BremenBremen28359Germany MARUM-Center for Marine and Environmental Sciences University of BremenBremen28359Germany Research institute of Petroleum Exploration and Development PetroChinaBeijing10083China School of Geosciences Yangtze UniversityWuhan 100083HubeiChina CNODC Mozambique Ltd. Beijing 100034China

Seafloor topography plays an important role in the evolution of submarine ***,it is still not so clear how the shape of slope affects the three-dimensional(3-D)architecture of submarine *** this study,we analyze the effect of topography factors on different hierarchical lobe architectures that formed during Pliocene to Quaternary in the Rovuma Basin offshore East *** characterize the shape,size and growth pattern of different hierarchical lobe architectures using 3-D seismic *** find that the relief of the topographic slope determines the location of preferential deposition of lobe complexes and single *** the topography is irregular and presents topographic lows,lobe complexes first infill these *** lobes are deposited preferentially at positions with higher longitudinal(***-slope)slope *** the longitudinal slope becomes higher,the aspect ratio of the single lobes ***(***-slope)topography does not seem to have a strong influence on the shape of single lobe,but it seems to affect the overlap of single *** the lateral slope gradient is relatively high,the single lobes tend to have a larger overlap ***,as the average of lateral slope and longitudinal slope gets greater,the width/thickness ratio of the single lobe is smaller,*** tend to accumulate *** results demonstrate that the shape of slopes more comprehensively influences the 3-D architecture of lobes in natural deep-sea systems than previously other lobe deposits and analogue experiments,which helps us better understand the development and evolution of the distal parts of turbidite systems.

关键词： Submarine fan Seafloor topography Sedimentary architecture Slope system SW Indian ocean

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