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Late Triassic Intracontinental Deformation of South Tianshan,Central Asia:Evidence from Syn-tectonic Sedimentation and Detrital Zircon Provenances of the Kuqa Depression

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Acta Geologica Sinica(English Edition) 2024年第3期98卷 548-568页

作者： QIN Xiang CHEN Xuanhua SHAO Zhaogang ZhanG Yiping WANG Yongchao LI Bing SU He WANG Ye LIU Kui han lele China Aero Geophysical Survey and Remote Sensing Center for Natural Resources Beijing 100083China Key Laboratory of Airborne Geophysics and Remote Sensing Geology MNRBeijing 100083China Chinese Academy of Geological Sciences Beijing 100037China School of Earth Sciences and Resources China University of Geosciences(Beijing)Beijing 100083China

The Tianshan range,a Paleozoic orogenic belt in Central Asia,has undergone multiple phases of tectonic activities characterized by the N-S compression after the early Mesozoic,including the far-field effects of the Cenozoic Indian-Asian ***,there are limited reports on the tectonic deformation and initiation of Triassic intracontinental deformation in the Tianshan *** this structural context is crucial for interpreting the early intracontinental deformation history of the Eurasian continent during the early *** strata and syn-tectonic sediments provide a rich source of information on tectonic activities and have been extensively used in the studies of orogenic *** on detail fieldwork conducted in this study,the middle-late Triassic Kelamayi Formation of the northern Kuqa Depression in the southern Tianshan fold-thrust belt has been identified as the typical syn-tectonic growth *** youngest detrital zircon component in two lithic sandstone samples from the bottom and top of the Kelamayi growth strata yielded U-Pb ages of 223.4±3.1 and 215.5±2.9 Ma,respectively,indicating that the maximum depositional age of the bottom and top of the Kelamayi growth strata is 226-220 and 218-212 *** geochronological distribution of detrital samples from the Early-Middle Triassic and Late Triassic revealed abrupt changes,suggesting a new source supply resulting from tectonic activation in the Tianshan *** coupling relationship between the syn-tectonic sedimentation of the Kelamayi Formation and the South Tianshan fold-thrust system provides robust evidence that the Triassic intracontinental deformation of the South Tianshan range began at approximately 226-220 Ma(during the Late Triassic)and ended at approximately 218-212 *** findings provide crucial constraints for understanding the intraplate deformation in the Tianshan range during the Triassic.

关键词： growth strata basin-mountain coupling Triassic Indosinian event Kuqa Depression South Tianshan

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强化营养联合抗阻运动训练对老年肌少症患者肌肉功能、炎症因子的影响

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中国医学创新 2024年第8期21卷 116-120页

作者：韩乐乐陆彩凤缪晓杰李道鸿苏州市第九人民医院老年医学科江苏苏州215200 苏州市吴江区体育局体测中心江苏苏州215200

目的:探究强化营养联合抗阻运动训练对老年肌少症患者肌肉功能、炎症因子的影响。方法:选取2021年3月—2023年3月苏州市第九人民医院纳入的100例老年肌少症患者作为研究对象,随机选取50例患者为对照组,另外50例患者为观察组。对照组实... 详细信息

目的:探究强化营养联合抗阻运动训练对老年肌少症患者肌肉功能、炎症因子的影响。方法:选取2021年3月—2023年3月苏州市第九人民医院纳入的100例老年肌少症患者作为研究对象,随机选取50例患者为对照组,另外50例患者为观察组。对照组实施常规营养支持,观察组实施强化营养联合抗阻运动训练。比较干预后两组的肌肉功能[四肢骨骼肌质量指数(ASMI)、握力、6分钟步行试验(6MWT)]、炎症因子[白细胞介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)、白细胞介素-1β(IL-1β)]及满意度。结果:干预后,观察组ASMI、握力、6MWT均优于对照组,差异均有统计学意义(P0.05);干预后,观察组IL-6、TNF-α、IL-1β水平均低于对照组,差异均有统计学意义(P<0.05)。观察组的总满意度显著高于对照组,差异有统计学意义(P<0.05)。结论:强化营养联合抗阻运动训练对老年肌少症患者肌肉功能、炎症因子的影响较为显著。

关键词：强化营养联合抗阻运动训练老年肌少症肌肉功能炎症因子

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New insights into the pre-lithiation kinetics of single-crystalline Ni-rich cathodes for long-life Li-ion batteries

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Green Energy & Environment 2024年第3期9卷 556-564页

作者： Qiang han lele Cai Zhaofeng Yang Yanjie Hu Hao Jiang Chunzhong Li Shanghai Engineering Research Center of Hierarchical Nanomaterials School of Chemical EngineeringEast China University of Science and TechnologyShanghai200237China Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai200237China

Developing single-crystalline Ni-rich cathodes is an effective strategy to improve the safety and cycle life of Li-ion batteries(LIBs).However,the easy-to-loss of Li and O in high-temperature lithiation results in unsatisfactory ordered layered structure and ***,we demonstrate the synthesis of highly-ordered and fully-stoichiometric single-crystalline LiNi_(0.83)Co_(0.12)Mn_(0.05)O_(2)(SC-NCM83)cathodes by the regulation of pre-lithiation *** well-balanced pre-lithiation kinetics have been proved to greatly improve the proportion of layered phase in the intermediate by inhibiting the formation of metastable spinel phase,which promoted the rapid transformation of the intermediate into highly-ordered layered SC-NCM83 in the subsequent lithiation *** coating a layer of Li_(2)O–B_(2)O_(3),the resultant cathodes deliver superior cycling stability with 90.9%capacity retention at 1C after 300 cycles in pouch-type full *** enhancement mechanism has also been *** findings exhibit fundamental insights into the pre-lithiation kinetics process for guiding the synthesis of high-quality singlecrystalline Ni-rich cathodes.

关键词： Single-crystalline cathode Ni-rich oxides Pre-lithiation Li-ion batteries Surface modification

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Early Cretaceous Thrust and Nappe Tectonics in North Qilian Shan,Northern Tibetan Plateau:Evidence from Field Mapping,Geochronology,and Deep Structural Analysis

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Acta Geologica Sinica(English Edition) 2023年第4期97卷 1058-1077页

作者： han lele DING Weicui CHEN Xuanhua SHAO Zhaogang ZhanG Da XIAO Yongjun HE Chengguang WANG Zengzhen LI Bing ZhanG Yiping XU Shenglin WANG Ye School of Earth Sciences and Resources China University of Geosciences(Beijing)Beijing 100083China SinoProbe Center Chinese Academy of Geological Sciences and China Geological SurveyBeijing 100037China Exploration and Development Research Institute Shengli Oilfield CompanySinopecDongyingShandong 257000China Henan Institute of Geological Survey ZhengzhouHenan 450001China

The North Qilian Shan fold and thrust belt,located at the northern Tibetan Plateau and southern margin of the Hexi Corridor,is a key tectonic unit to decode the formation and expansion of the *** studies emphasize the Cenozoic deformation due to the far-field response to the Indo-Asian collision,but the Mesozoic deformations are poorly constrained in this *** conducted detailed field mapping,structural analysis,geochronology,and structural interpretation of deep seismic reflectional profiling and magnetotelluric(MT)sounding,to address the superposed results of the Mesozoic and Cenozoic *** results recognized the North Qilian thrust and nappe system(NQTS),the root and the frontal belt are the North Qilian thrust(NQT),and the Yumu Shan klippe(YK),*** middle belt is located between the NQT and the *** granite zircon U-Pb dating from the middle belt yields an age of ca.415 Ma,which is similar to south *** thrusting displacement is estimated at ca.48 km by structural interpretation of deep *** timing is constrained in the early stage of the Early Cretaceous by the formation of simultaneous growth *** suggest that the NQTS has resulted from the far-field effect of the Lhasa-Qiangtang collision,and the Yumu Shan is uplifted by the superposed Cenozoic deformation.

关键词： geochronology structural analysis seismic reflectional and MT profiling Early Cretaceous North Qilian thrust and nappe system Tibetan Plateau

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Effects of propofol on early and late cytokines in lipopolysaccharideinduced septic shock in rats

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The Journal of Biomedical Research 2010年第5期24卷 389-394页

作者： Sha Li Hongguang Bao Liu han lele Liu Department of Anesthesiology Nanjing First Hospital Affiliated to Nanjing Medical UniversityNanjing 210006Jiangsu ProvinceChina

Objective：It has been reported that the intravenous anesthetic propofol（PPF）has anti-inflammatory effects in vitro and in *** purpose of this study was to investigate whether PPF has anti-inflammatory effects in lipopolysaccharide（LPS）-induced septic shock by inhibiting the induction of pro-inflammatory cytokinesinterleukin-6（IL-6）and tumor necrosis factor-α（TNF-α）and high mobility group box 1（HMGB1）in ***：Thirty six male Wistar rats were randomly assigned to one of three groups（control group,PPF＋LPS group and LPS group;n=12 per group）.Control group rats received a 0.9%NaCl solution（NS）by the tail *** PPF＋ LPS group rats received PPF（10 mg/kg bolus,followed by infusion at 10 mg/（kg·h）through a femoral vein catheter）1 h before LPS（7.5 mg/kg）administration via the tail *** LPS group rats received injection of LPS（7.5 mg/kg）via the tail *** effects were recorded as well as mortality rates,and plasma cytokine concentrations（TNF-α,IL-6,HMGB1）were measured for the 24-h observation ***：The mean arterial pressure and heart rate of the PPF＋LPS group were more stable than those of the LPS *** mortality at 24 h after the administration of the LPS injection was much higher in the LPS group（58.3%）compared to the PPF＋ LPS group（25.0%）.Plasma concentrations of cytokines（IL-6 and TNF-α）and HMGB1 were significantly reduced in the PPF＋LPS group compared to the LPS group（P0.05）.Conclusion：Pretreatment with PPF reduced the mortality rate of rats and attenuated the pro-inflammatory cytokine responses in an endotoxin shock model through an anti-inflammatory action inhibiting induction of HMGB1.

关键词： propofol sepsis tumor necrosis factor-α interleukin-6 high mobility group box 1

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Late Paleozoic Element Migration and Accumulation under Intracontinental Sinistral Strike-slip Faulting in the West Junggar Orogenic Belt, NW China

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Acta Geologica Sinica(English Edition) 2020年第6期94卷 2012-2030页

作者： WANG Ye CHEN Xuanhua NIE Lanshi DING Weicui WANG Xueqiu XU Shenglin MA Feizhou han lele SinoProbe Center Chinese Academy of Geological Sciences and China Geological SurveyBeijing 100037China Institute of Geophysical and Geochemical Exploration Chinese Academy of Geological SciencesLangfangHebei 065000China China University of Geosciences Beijing 100083China

The migration,accumulation and dispersion of elements caused by tectonic dynamics have always been a focus of attention,and become the basis of ***,the effects of faulting,especially strike-slip faulting,on the adjustment of geochemical element distribution,are still not *** this paper,we select the West Junggar Orogenic Belt(WJOB),NW China,as a case study to test the migration behavior of elements under tectonic *** WJOB is dominated by NE-trending large-scale sinistral strike-slip faults such as the Darabut Fault,the Mayile Fault,and the Baerluke Fault,which formed during the intracontinental adjustment under N-S compression during ocean-continental conversion in the Late *** maps of 13 elements,Al,W,Sn,Mo,Cu,Pb,Zn,As,Sb,Hg,Fe,Ni,and Au,are analyzed for the effects of faulting and folding on element distribution at the regional *** results show that the element distribution in the WJOB is controlled mainly by two mechanisms during tectonic deformation:first is the material transporting mechanism,where the movement of geological units is consistent with the direction of tectonic movement;second is the diffusion mechanism,especially by tectonic pressure dissolution driven by tectonic dynamics,where the migration of elements is approximately perpendicular or opposite to the direction of tectonic *** conclude that the adjustment of element distributions has been determined by the combined actions of transporting and diffusion mechanisms,and that the diffusion mechanism plays an important role in the formation of geochemical Au blocks in the WJOB.

关键词： tectono-geochemistry strike-slip fault system element distribution gold West Junggar Central Asian Orogenic Belt

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坚持房住不炒的“长沙智慧”——论长沙房地产调控的底层逻辑与顶层设计

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中外建筑 2022年第7期 I0002-I0003页

作者：韩乐乐长沙市住房和城乡建设信息中心《中外建筑》杂志

2014年,针对商品房库存高企、房屋资源闲置率高的现实状况,全国楼市打响“去库存之战”。结合新型城镇化建设和棚户区改造的双轮驱动,叠加金融端降准、降息、降首付和利率优惠,财税端住宅交易营业税(现为增值税)免征年限5年改2年等政策... 详细信息

2014年,针对商品房库存高企、房屋资源闲置率高的现实状况,全国楼市打响“去库存之战”。结合新型城镇化建设和棚户区改造的双轮驱动,叠加金融端降准、降息、降首付和利率优惠,财税端住宅交易营业税(现为增值税)免征年限5年改2年等政策刺激,2015年,全国房地产市场开始迅速转向升温。2016年起,整个房地产市场调控逻辑已由“去库存”转为“控房价”,长沙作为省会城市,按照市场有效和政府有为的管理工作思路,及时对过热的房地产市场作出政策反馈。

关键词：房地产调控去库存房地产市场调控营业税住宅交易增值税棚户区改造房屋资源

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复杂动态背景下的运动目标检测

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光电工程 2018年第10期45卷 170695-170701页

作者：王思明韩乐乐兰州交通大学自动化与电气工程学院甘肃兰州730070

为实现复杂动态背景下快速、准确地检测运动目标,提出一种改进二进制鲁棒不变尺度特征(BRISK)算法的运动目标检测方法。首先对图像进行分块,利用图像熵对图像块进行筛选;然后针对特征匹配过程中存在大量误匹配的问题,采用k近邻算法与欧... 详细信息

为实现复杂动态背景下快速、准确地检测运动目标,提出一种改进二进制鲁棒不变尺度特征(BRISK)算法的运动目标检测方法。首先对图像进行分块,利用图像熵对图像块进行筛选;然后针对特征匹配过程中存在大量误匹配的问题,采用k近邻算法与欧氏距离进行特征匹配;最后通过改进的顺序抽样一致性算法进行特征点提纯,进一步完成背景运动补偿,从而利用形态学处理分割运动目标。采用多组视频图像进行验证,本文算法在原BRISK算法的基础上去除了32.7%的特征点,并且匹配效率提高了75%,处理速度比以往算法快,并且具有较强的抗噪性能。

关键词：运动目标检测 BRISK算法图像熵欧氏距离

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西准噶尔晚古生代地壳组成与生长:来自Sr-Nd-Pb同位素填图的证据

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地学前缘 2022年第2期29卷 261-280页

作者：徐盛林丁伟翠陈宣华李廷栋韩乐乐刘勇马飞宙王叶中国地质科学院深部探测中心北京100037 中国地质科学院地质研究所北京100037 中国地质大学(北京)地球科学与资源学院北京100083 中国地质调查局北京100037

西准噶尔地区晚古生代岩浆活动剧烈,地壳的垂向和侧向增生显著,地壳生长和演化存在多阶段性。本文重点通过Sr-Nd-Pb同位素填图研究,发现西准噶尔地区ε_(Nd)(t)值为2.29~8.75,(^(87)Sr/^(86)Sr)_(i)值为0.697397~0.708336,(^(206)Pb/^(2... 详细信息

西准噶尔地区晚古生代岩浆活动剧烈,地壳的垂向和侧向增生显著,地壳生长和演化存在多阶段性。本文重点通过Sr-Nd-Pb同位素填图研究,发现西准噶尔地区ε_(Nd)(t)值为2.29~8.75,(^(87)Sr/^(86)Sr)_(i)值为0.697397~0.708336,(^(206)Pb/^(204)Pb)_(i)值为17.4975~19.0352,整体表现为高正ε_(Nd)(t)、低(^(87)Sr/^(86)Sr)_(i)和年轻的地壳模式年龄特征,源区以古生代新生地壳为主,地幔贡献值整体大于50%,深部地壳几乎不存在古老的结晶基底,可以与区域构造地质、地球物理资料作较好匹配。区域晚古生代主要经历3个时期的造山阶段,分别对应造山带演化的第一阶段(中晚石炭世,岛弧为代表的侧向生长为主)、第二阶段早期(晚石炭世—早二叠世,后碰撞阶段的垂向生长为主)和第二阶段晚期(早二叠世—早三叠世,壳幔混源背景下的垂向生长),区域造山作用结束于早三叠世。

关键词：晚古生代同位素填图地壳组成地壳生长造山演化西准噶尔

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改进YOLOv5s的广域InSAR矿区地表形变检测

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测绘科学 2024年第3期49卷 127-136页

作者：王若松张乐乐韩文辉李相磊内蒙古工业大学机械工程学院呼和浩特010051 内蒙古工业大学信息工程学院呼和浩特010051 内蒙古自治区雷达技术与应用重点实验室呼和浩特010051

针对传统InSAR全流程处理在广域矿区地表形变监测中效率低无法快速响应矿区地质灾害的问题,以InSAR干涉条纹为研究对象,提出一种广域观测范围下基于改进YOLOv5s的矿区形变干涉条纹检测方法。使用迁移学习方法对网络模型进行训练,引入EC... 详细信息

针对传统InSAR全流程处理在广域矿区地表形变监测中效率低无法快速响应矿区地质灾害的问题,以InSAR干涉条纹为研究对象,提出一种广域观测范围下基于改进YOLOv5s的矿区形变干涉条纹检测方法。使用迁移学习方法对网络模型进行训练,引入ECA注意力机制和ASPP模块、增加小目标网络预测层以提升网络模型对形变干涉条纹的检测精度。改进后的YOLOv5s平均精度均值为94.6%,比YOLOv5s、SSD、Faster-RCNN、YOLOv3、YOLOv7分别提升2.4%、5.7%、4.4%、2.7%、3.2%;F1-Score为89.9%,分别提升3.9%、6.9%、17.7%、2.4%、2.6%;对研究区形变干涉条纹进行检测,准确率为92.7%,误检率为4.3%。实验结果表明,该方法不仅能准确识别广域矿区形变,及时发现灾害隐患并对其进行评估与预警,还能大大提升传统InSAR形变监测效率。

关键词：矿区形变干涉条纹 YOLOv5s 迁移学习

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