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库车前陆盆地的热流与深部温度分布特征

高校地质学报 2024年第4期30卷 460-475页

作者：冯冠中刘绍文朱传庆李香兰南京大学海岸与海岛开发教育部重点实验室地理与海洋科学学院南京210023 国家2011计划“中国南海研究”协同创新中心南京210093 中国石油大学(北京)地球科学学院北京102249

沉积盆地热体制对理解盆地的成因演化过程以及油气和地热能源资源评估等具有关键作用,备受学术界和工业界关注。库车前陆盆地是中国重要的天然气产区,其热体制的准确厘定对于该区油气潜力评估具有重要意义。文章利用系统连续测温与试油... 详细信息

沉积盆地热体制对理解盆地的成因演化过程以及油气和地热能源资源评估等具有关键作用,备受学术界和工业界关注。库车前陆盆地是中国重要的天然气产区,其热体制的准确厘定对于该区油气潜力评估具有重要意义。文章利用系统连续测温与试油温度数据,结合地层热物性数据,详细研究了库车前陆盆地的现今热状态特征。库车前陆盆地的现今地温梯度介于17.3~25.7℃/km之间,平均值为21.5±2.6℃/km;大地热流范围为27.4~57.9 mW/m^(2)之间,平均值为40.9±7.2 mW/m^(2)。区域内1000~6000 m埋深处的估算温度范围及均值分别为26~49℃(36±4.6℃)、42~82℃(59±7.5℃)、64~113℃(82±10.3℃)、85~127℃(102±11.6℃)、98~140℃(119±12.8℃)与110~155℃(133±13.9℃)。库车前陆盆地现今热状态整体偏低,分布上表现出“北高南低、东高西低”的空间格局。盆地西部沉积物厚度大,沉积层因其低热导率形成热屏蔽效应,阻碍深部热量向地表运输。同时,盆地东部新构造变形强度更大,断层运动生热效应明显。盆地沉积物厚度差异以及印度—欧亚大陆碰撞远距离效应作用下活动构造的强度差异联合造就了观测到的区域地热格局。

关键词：大地热流地温梯度岩石热物性热体制库车前陆盆地

外周血miR-571水平对肝纤维化的诊断价值

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实用医学杂志 2024年第5期40卷 653-657页

作者：唐娟李燚翟丽琼刘邵雯申涌丛硕刘咏梅贵州医科大学医学检验学院贵阳550025 贵州医科大学地方病与少数民族疾病教育部重点实验室贵阳550004 贵州省第三人民医院检验科贵阳500002 贵州医科大学附属医院临床检验中心贵阳550004 贵州医科大学附属医院输血科贵阳550004

目的通过检测肝纤维化患者外周血中miR-571的表达,探讨miR-571水平对肝纤维化的诊断意义。方法选取2022年12月至2023年9月诊断为肝纤维化的患者40例(肝纤维化组)、肝炎患者40例(肝炎组)和健康对照者40例(健康对照组)作为研究对象。采... 详细信息

目的通过检测肝纤维化患者外周血中miR-571的表达,探讨miR-571水平对肝纤维化的诊断意义。方法选取2022年12月至2023年9月诊断为肝纤维化的患者40例(肝纤维化组)、肝炎患者40例(肝炎组)和健康对照者40例(健康对照组)作为研究对象。采用实时荧光定量PCR检测外周血中miR-571的表达水平,分析各组中miR-571的相对表达量。使用Spearman相关性分析miR-571与临床常见指标的相关性。通过二元logistic回归构建多变量诊断模型,并绘制ROC曲线评价miR-571和多变量诊断模型对肝纤维化的诊断能力。结果肝纤维化组中miR-571的表达水平显著高于健康对照组和肝炎组,差异有统计学意义(P <0.001)。Spearman相关性分析显示,miR-571的表达水平与ALT、APRI评分和FIB-4指数呈正相关(r=0.23、0.30、0.22,P <0.05),与PLT呈负相关(r=-0.19,P <0.05)。logistic回归分析得出miR-571和FIB-4指数是肝纤维化的独立危险因素。ROC曲线结果显示miR-571诊断纤维化的AUC为0.91(95%CI:0.85~0.96),miR-571联合FIB-4指数诊断肝纤维化的AUC为0.94(95%CI:0.90~0.98)。结论肝纤维化患者的外周血中miR-571表达显著升高,联合FIB-4指数对肝纤维化具有一定临床诊断价值。

关键词：肝纤维化 miR-571 诊断

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导管消融治疗心房颤动合并心力衰竭

国际心血管病杂志 2024年第2期51卷 97-100页

作者：张晓钰周根青刘少稳上海交通大学医学院附属第一人民医院心血管内科 200080

心房颤动(房颤)和心力衰竭(心衰)是临床常见的心血管疾病,二者互为因果,导致恶性循环。导管消融治疗房颤合并心衰不仅可以改善心功能、提高生活质量,还能改善临床预后、降低再住院率和病死率。应在房颤患者出现心衰症状前或在心衰早期... 详细信息

心房颤动(房颤)和心力衰竭(心衰)是临床常见的心血管疾病,二者互为因果,导致恶性循环。导管消融治疗房颤合并心衰不仅可以改善心功能、提高生活质量,还能改善临床预后、降低再住院率和病死率。应在房颤患者出现心衰症状前或在心衰早期进行导管消融,才能使患者获益更多。

关键词：心房颤动心力衰竭导管消融

Deep learning autofluorescence-harmonic microscopy

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Light(Science & Applications) 2022年第4期11卷 697-710页

作者： Binglin Shen shaowen liu Yanping Li Ying Pan Yuan Lu Rui Hu Junle Qu Liwei liu Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province and Ministry of Education College of Physics and Optoelectronic EngineeringShenzhen University518060 ShenzhenChina Shenzhen Meitu.Innovation Technology LTD 518060 ShenzhenChina. China-Japan Union Hospital of Jilin University 130033 ChangchunChina The Sixth People's Hospital of Shenzhen 518052 ShenzhenChina

Laser scanning microscopy has inherent tradeoffs between imaging speed,field of view(FOV),and spatial resolution due to the limitations of sophisticated mechanical and optical setups,and deep learning networks have emerged to overcome these limitations without changing the ***,we demonstrate deep learning autofluorescence-harmonic microscopy(DLAM)based on self-alignment attention-guided residual-in-residual dense generative adversarial networks to close the gap between speed,FOV;and *** the framework,we demonstrate label-free large-field multimodal imaging of clinicopathological tissues with enhanced spatial resolution and running time *** quality assessments show that the attention-guided residual dense conneaions minimize the persistent noise,distortions,and scanning fringes that degrade the autofluorescence-harmonic images and avoid reconstruction artifaas in the output *** the advantages of high contrast,high fidelity,and high speed in image reconstruction,DLAM can act as a powerful tool for the noninvasive evaluation of diseases,neural activity,and embryogenesis.

关键词： networks Deep harmonic

珠江口盆地陆丰13洼原型盆地类型与分段差异演化

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中国海上油气 2024年第3期36卷 60-69页

作者：钟锴李洪博刘绍文肖张波边利豪吴迪冯凯龙同济大学海洋地质国家重点实验室上海200092 同济大学海洋资源研究中心上海200092 中海石油(中国)有限公司深圳分公司广东深圳518000 中海石油深海开发有限公司广东深圳518000 南京大学地理与海洋学院海岸与海岛开发教育部重点实验室江苏南京210046 广东海洋大学船舶与海洋工程系广东湛江524005

陆丰13洼是珠江口盆地东部的传统重点探区,当前油气勘探缺乏领域性和规模性目标,因此有必要对洼陷进行整体分析和区域解剖,开展原型盆地恢复、构造分段差异性等基础地质研究。研究表明,13西洼原型盆地为典型的北断南超箕状半地堑,具脆... 详细信息

陆丰13洼是珠江口盆地东部的传统重点探区,当前油气勘探缺乏领域性和规模性目标,因此有必要对洼陷进行整体分析和区域解剖,开展原型盆地恢复、构造分段差异性等基础地质研究。研究表明,13西洼原型盆地为典型的北断南超箕状半地堑,具脆性变形特征,西段为继承型半地堑,东段为弱迁移型半地堑。13东洼具明显的构造分段差异性:西段原型盆地为迁移型叠合洼陷,裂陷晚期(恩平期)断拗叠置于裂陷早期(文昌期)箕状半地堑上,应为基底以深岩浆底侵带不断向北迁移所致;中段原型盆地为宽缓型半地堑和断拗叠加,控洼断裂数量多但活动性弱,具韧性变形特征,基底以深多见岩浆局部强烈底侵;东段原型盆地为北断南超箕状半地堑。在恢复洼陷各段不同裂陷阶段原型盆地的基础上,重点剖析了各段的构造样式及其演化横向差异,探讨其差异演化过程及深部动力学机制,指出岩浆底侵及热机制差异是造成陆丰13洼多类型原型盆地及其分段差异演化的控制因素,填补了珠江口盆地陆架区热机制与洼陷差异变形研究的空白。该认识对深入研究陆丰13洼基础石油地质条件及油气富集成藏的横向差异性提供科学依据,并将为下阶段油气勘探提供理论借鉴和参考。

关键词：珠江口盆地陆丰13洼原型盆地差异演化岩浆底侵热机制

基于APSO-Robust-ELM的大坝变形原始监测数据粗差识别方法

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水力发电 2024年第6期50卷 111-116页

作者：杨兴富刘得潭杨进刘少文高睿颖顾昊王岩博四川大唐国际甘孜水电开发有限公司四川康定626001 河海大学水利水电学院江苏南京210024 大唐水电科学技术研究院有限公司四川成都610074

针对大坝原始监测数据普遍存在粗差的问题,提出了稳健估计与极限学习机相结合的粗差识别方法;并在此基础上,利用自适应粒子群算法寻找神经网络的最佳隐含层节点数;最后利用大坝安全预测模型验证所用方法的必要性和适用性。在工程实例分... 详细信息

针对大坝原始监测数据普遍存在粗差的问题,提出了稳健估计与极限学习机相结合的粗差识别方法;并在此基础上,利用自适应粒子群算法寻找神经网络的最佳隐含层节点数;最后利用大坝安全预测模型验证所用方法的必要性和适用性。在工程实例分析中,将APSO-Robust-ELM法与Robust-ELM法、罗曼诺夫斯基准则和拉依达准则的处理结果进行对比,结果表明,APSO-Robust-ELM法能够更好的识别原始监测数据中的粗差,从而提高大坝安全运行的管理效率。

关键词：监测数据大坝安全粗差识别人工智能 APSO-Robust-ELM

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High-areal-capacity/power lithium metal microbattery configuration based on the mechanically flexible,ultra-lightweight,nanocellulose framework

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Nano Research 2024年第9期17卷 8155-8162页

作者： shaowen Li Ting Zhao Helin Wang Zhiqiao Wang Min Zhang Ahu Shao Jiacheng liu Zhaohui Wang Yue Ma State Key Laboratory of Solidification Processing Centre for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi'an 710072China College of Materials Science and Engineering Hunan UniversityChangsha 410082China The Faculty of Printing Packaging Engineering and Digital Media TechnologyXi'an University of TechnologyXi'an 710048China

The ubiquitous implementation of integrated microelectronics requires the on-chip power sources featured with the lightweight configuration design,high areal-capacity-loadings as well as facile reaction kinetics that beyond the current available microbattery ***,this study constructs a mechanically flexible,nanocellulose fiber(NCF)reinforced microbattery configuration,which consists of metal-organic frameworks(ZIF-8)modified NCF as the separator(MOF@NCF),the carbonized MOF@NCF as the metallic deposition substrate(c-MOF@NCF)as well as gradient-structured LiFePO4 particles infiltrated in the NCF matrix(LFP@NCF)as the *** film-stacked,integrated NCF-based microbattery prototype not only achieves the facile reaction kinetics with homogenized,dendrite-free Li metal deposition at high-capacity-loadings(2 mAh·cm^(-2)),but also eliminates the necessary use of metallic current collector to maximize the electroactive mass ratio,which therefore enables the high energy density of 6.8 mWh·cm^(-2)at the power output of 1.36 mW·cm^(-2)as well as the robust cyclability upon various geometric flexing *** study presents a quantum leap towards the facile reaction kinetics and multi-scale interfacial stability for the flexible microbattery construction that based on the sustainable utilization of bio-scaffolds.

关键词： nanocellulose microbattery mechanical flexible ultra-lightweight high-areal-capacity

Measurement and Analysis of Thermal Conductivity of Rocks in the Tarim Basin,Northwest China

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Acta Geologica Sinica(English Edition) 2011年第3期85卷 598-609页

作者： liu shaowen FENG Changge WANG Liangshu LI Cheng Key Laboratory of Coast and Island Development MOE Nanjing University＂ School of Geographic and Oceanographic Sciences Nanjing University Nanjing Jiangsu 210093 China School of Earth Science and Engineering Nanjing University Nanjing Jiangsu 210093 China

As a parameter that describes heat transmission properties of rocks,thermal conductivity is indispensable for studying the thermal regime of sedimentary basins,and retrieving high-quality data of thermal conductivity is the basis for geothermal related *** optical scanning method is used here to measure the thermal conductivity of 745 drill-core samples from the Tarim basin,the largest intermontane basin with abundant hydrocarbon potential in China,and water saturation correction is made for clastic rock samples that are of variable *** the measured values,combined with previously published data in this area,are integrated to discuss the distribution characteristics and major controlling factors that affect the thermal conductivity of rocks in the *** results show that the values of thermal conductivity of rocks generally range from 1.500 to 3.000 W/m·K with a mean of 2.304 W/m·*** conductivity differs considerably between lithological types：the value of a coal sample is found to be the lowest as being only 0.249 W/m·K,while the values for salt rock samples are the highest with a mean of 4.620 W/m·***,it is also found that the thermal conductivity of the same or similar lithologic types shows considerable differences,suggesting that thermal conductivity cannot be used for distinguishing the rock *** thermal conductivity values of mudstone and sandstone generally increase with increasing burial depth and geological age of the formation,reflecting the effect of porosity of rocks on thermal *** general,the mineral composition,fabric and porosity of rocks are the main factors that affect the thermal *** research also reveals that the obvious contrast in thermal conductivity of coal and salt rock with other common sedimentary rocks can induce subsurface temperature anomalies in the overlying and underlying formations,which can modify the thermal evolution and maturity of the source rocks ***

关键词： thermal conductivity petrophysics Tarim basin

Geothermal investigation of the thickness of gas hydrate stability zone in the north continental margin of the South China Sea

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Acta Oceanologica Sinica 2017年第4期36卷 72-79页

作者： WANG Yanmin liu shaowen HAO Feifei ZHAO Yunlong HAO Chunyan School of Geographic and Oceanographic Sciences Nanjing University Nanjing 210023 China Ministry of Education Key Laboratory for Coast and Island Development Nanjing University Nanjing 210023 China Collaborative Innovation Center of South China Sea Studies Nanjing 210093 China

The exploration of unconventional and/or new energy resources has become the focus of energy research worldwide,given the shortage of fossil *** a potential energy resource,gas hydrate exists only in the environment of high pressure and low temperature,mainly distributing in the sediments of the seafloor in the continental margins and the permafrost zones in *** accurate determination of the thickness of gas hydrate stability zone is essential yet challenging in the assessment of the exploitation *** majority of previous studies obtain this thickness by detecting the bottom simulating reflectors（BSRs） layer on the seismic *** phase equilibrium between gas hydrate stable state with its temperature and pressure provides an opportunity to derive the thickness with the geothermal *** on the latest geothermal dataset,we calculated the thickness of the gas hydrate stability zone（GHSZ） in the north continental margin of the South China *** results indicate that the thicknesses of gas hydrate stability zone vary greatly in different areas of the northern margin of the South China *** thickness mainly concentrates on 200–300 m and distributes in the southwestern and eastern areas with belt-like *** further confirmed a certain relationship between the GHSZ thickness and factors such as heat flow and water *** thickness of gas hydrate stability zone is found to be large where the heat flow is relatively *** GHSZ thickness increases with the increase of the water depth,but it tends to stay steady when the water depth deeper than 3 000 *** findings would improve the assessment of gas hydrate resource potential in the South China Sea.

关键词： gas hydrate thickness of stability zone heat flow continental margin South China Sea