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Late Paleozoic–Early Mesozoic tectonic evolution of the Zongwulong Shan-Qinghai Nanshan tectonic belt in the northern Qaidam continent， northern Tibet

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Journal of Earth Science 2025年

作者： yonghui zhao Chen Wu Jie Li Peter J.Haproff Lin Ding State Key Laboratory of Tibetan Plateau Earth System and Resources Environment (TPESRE)， Institute of Tibetan Plateau Research， Chinese Academy of Sciences University of Chinese Academy of Sciences Chongqing Key Laboratory of Complex Oil and Gas Field Exploration and Development， Chongqing University of Science and Technology Department of Earth and Ocean Sciences， University of North Carolina Wilmington

The Zongwulong Shan-Qinghai Nanshan tectonic belt of the northern Tibet Plateau experienced a protracted tectonic history， including the openings and closures of the Proto- and Paleo-Tethyan Oceans. Although the tectonic belt has been extensively studied， details regarding the tectonic processes involved in its development remain controversial. To better constrain the tectonic processes of this tectonic belt， we conducted detailed field geological mapping， zircon U-Pb geochronology， and whole-rock geochemical and Sr-Nd isotopic analyses. Our results show that intrusive rocks in the tectonic belt crystallized in ca. 292–233 Ma， perhaps in an arc/subduction setting. Geochemical and Sr-Nd isotopic data suggest that early Permian–late Triassic ultramafic-intermediate intrusions were sourced from the enriched mantle， whereas intermediate-acidic rocks were sourced from mixed crust-mantle. We present the tectonic model that involves: (1) Early Devonian–early Permian intracontinental extension occurred in the northern margin of the Qaidam continent (ca. 416 Ma–292 Ma); (2) Early Permian–late Triassic northward subduction of the Paleo-Tethyan Ocean resulted in arc magmatism (ca. 292 Ma–233 Ma); and (3) subsequent late Triassic intracontinental extension (ca. 233 Ma–215 Ma). Our results suggest that the late Paleozoic–early Mesozoic development of the Zongwulong Shan-Qinghai Nanshan was related to the opening， subduction， and slab retreat of the Paleo-Tethyan Ocean， which has key implications for the tectonic evolution of the northern Tibetan Plateau.

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Active flutter suppression of a multiple-actuated-wing wind tunnel model

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Chinese Journal of Aeronautics 2014年第6期27卷 1451-1460页

作者： Qian Wenmin Huang Rui Hu Haiyan zhao yonghui State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics

In this study, a multi-input/multi-output（MIMO） time-delay feedback controller is designed to actively suppress the flutter instability of a multiple-actuated-wing（MAW） wind tunnel model in the low subsonic flow regime. The unsteady aerodynamic forces of the MAW model are computed based on the doublet-lattice method（DLM）. As the first attempt, the conventional linear quadratic-Gaussian（LQG） controller is designed to actively suppress the flutter of the MAW model. However, because of the time delay in the control loop, the wind tunnel tests illustrate that the LQG-controlled MAW model has no guaranteed stability margins. To compensate the time delay, hence, a time-delay filter, approximated via the first-order Pade approximation, is added to the LQG controller. Based on the time-delay feedback controller, a new digital control system is constructed by using a fixed-point and embedded digital signal processor（DSP） of high performance. Then, a number of wind tunnel tests are implemented based on the digital control *** experimental results show that the present time-delay feedback controller can expand the flutter boundary of the MAW model and suppress the flutter instability of the open-loop aeroelastic system effectively.

关键词： Aeroservoelasticity Flutter Linear quadratic Gaussian(LQG) controller Multiple-actuated-wing(MAW) Time-delay feedback Wind tunnel test

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Bonding strength of graded anti-corrosive coatings of fluoroethylenepropylene (FEP)/polyphenylene sulfide (PPS)

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Journal of University of Science and Technology Beijing 2005年第6期12卷 572-576页

作者： Jie Bian Weiqiang Wang Congsheng Guan yonghui zhao School of Materials Science and Engineering Shandong University Jinan 250061 China School of Mechanical Engineering Shandong University Jinan 250061 China School of Chemical Technology Shandong University Jinan 250061 China

Fluororesin-based anti-corrosive coatings including graded FEP/PPS were prepared on carbon steel by melt powder coating, the bonding strength of all coating systems was determined by the pull-off test. It is found that the poor adhesion of fluororesin coatings to metallic substrates is improved obviously by the graded coating structure of FEP/PPS, and the bonding strength reaches up to 11.8 MPa for the five-layer system. Examination by electron probe microanalysis （EPMA） verifies that the distribution of main components is graded in the five-layer system, which is responsible for the enhancement of the interfacial bonding.

关键词： fluororesin anti-corrosive coating graded coating structure polyphenylene sulfide (PPS) bonding strength

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Global Co-transcriptional Splicing in Arabidopsis and the Correlation with Splicing Regulation in Mature RNAs

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Molecular Plant 2020年第2期13卷 266-277页

作者： Shaofang Li Yuan Wang yonghui zhao Xinjie zhao Xuemei Chen Zhizhong Gong State Key Laboratory of Plant Physiology and Biochemistry College of Biological SciencesChina Agricultural UniversityBeijing 100193China Joint Laboratory for International Cooperation in Crop Molecular Breeding China Agricultural UniversityBeijing 100193China Department of Botany and Plant Sciences Institute of Integrative Genome BiologyUniversity of CaliforniaRiversideCA 92521USA Gua ngdong Provincial Key Laboratory for Plant Epige netics Longhua Institute of Innovative Biotech no logyCollege of Life Sciences and OceanographyShenzhe n UniversityShenzhen 518060China Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China Plant Phenomics Research Center Nanjing Agricultural UniversityNanjing 21001&China

RNA splicing and spliceosome assembly in eukaryotes occur mainly during ***,co-transcriptional splicing has not yet been explored in ***,we built transcriptomes of nascent chromatin RNAs in Arabidopsis thaliana and showed that nearly all introns undergo co-transcriptional splicing,which occurs with higher efficiency for introns in protein-coding genes than for those in noncoding *** intron number and intron position are two predominant features that correlate with co-transcriptional splicing efficiency,and introns with alternative 5′or 3′splice sites are less efficiently ***,we found that mutations in genes encoding trans-acting proteins lead to more introns with increased splicing defects in nascent RNAs than in mature RNAs,and that introns with increased splicing defects in mature RNAs are inefficiently spliced at the co-transcriptional ***,our results not only uncovered widespread co-transcriptional splicing in Arabidopsis but also identified features that may affect or be affected by co-transcriptional splicing efficiency.

关键词： chromatin co-transcriptional splicing frans-acting proteins Arabidopsis

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轻量化卷积神经网络在调门油动机故障诊断中的应用

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液压与气动 2025年第2期49卷 58-68页

作者：姜万录杨旭康赵永会唐恩宇吴凤和燕山大学河北省重型机械流体动力传输与控制实验室河北秦皇岛066004 燕山大学机械工程学院河北秦皇岛066004

针对调门油动机故障诊断困难、检修效率低的问题,利用ShuffleNetV2网络结构高并行和低碎片化的特点,将其特征提取基本模块一维化,并针对调门油动机故障诊断10分类的任务,构建了一种1D_ShuffleNetV2轻量化网络。基于调门油动机一维振动信... 详细信息

针对调门油动机故障诊断困难、检修效率低的问题,利用ShuffleNetV2网络结构高并行和低碎片化的特点,将其特征提取基本模块一维化,并针对调门油动机故障诊断10分类的任务,构建了一种1D_ShuffleNetV2轻量化网络。基于调门油动机一维振动信号,将1D_ShuffleNetV2与1D_MobileNetV3、1D_ShuffleNetV1以及传统的一维残差网络模型进行对比试验。结果表明,1D_ShuffleNetV2的轻量化程度最高、训练时收敛速度最快、稳定性最高,且能够在保持高分类精度的同时,有效地提升数据处理速度。这为调门油动机的健康监测和故障诊断提供了一种新的技术方案,可在保证调门油动机诊断精度的同时,降低对边缘端设备的硬件资源需求。

关键词： 1D_ShuffleNetV2 轻量化调门油动机故障诊断

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交变荷载-硫酸盐侵蚀下再生混凝土性能劣化及损伤模型

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公路交通科技 2025年第1期42卷 76-84页

作者：关博文吴奇霖王晨迪吴佳育王发平赵永辉长安大学材料科学与工程学院陕西西安710064 青海省交通建设管理有限公司青海西宁430070 宁波工程学院建筑与交通工程学院浙江宁波315016

【目标】探究再生混凝土在富盐地区服役性能劣化规律,拓宽再生混凝土在道路工程中的应用场景。【方法】采用超声无损检测、力学特性试验等方法,评估了硫酸盐干湿循环周期及交变荷载应力水平对再生混凝土抗压强度与相对动弹模量的影响。... 详细信息

【目标】探究再生混凝土在富盐地区服役性能劣化规律,拓宽再生混凝土在道路工程中的应用场景。【方法】采用超声无损检测、力学特性试验等方法,评估了硫酸盐干湿循环周期及交变荷载应力水平对再生混凝土抗压强度与相对动弹模量的影响。通过微观性能测试,剖析了再生混凝土在交变荷载-硫酸盐干湿循环作用下宏微观性能的劣化机制,并构建了再生混凝土损伤演化方程。【结果】交变荷载作用使再生混凝土性能劣化提前。在侵蚀周期大于45次后,其相对动弹性模量与相对抗压强度呈下降趋势,且应力水平越高,下降速率越快。当应力水平小于0.5时,轴向压缩荷载与硫酸盐侵蚀作用可提高再生混凝土整体密实度,但超过该阈值,微裂纹扩展会降低其抗侵蚀能力。所建立的损伤演化方程能较好地预测再生混凝土损伤度发展规律,但在侵蚀后期,由于再生混凝土自身结构缺陷,预测误差会略有增大。【结论】研究结果可为富盐地区道路工程中再生混凝土的结构设计与耐久性评估提供关键依据,有效延长道路使用寿命,降低工程成本,对推动再生混凝土在道路工程中的广泛应用具有重要意义。

关键词：道路工程损伤模型超声无损检测再生混凝土交变荷载

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经导管主动脉瓣置换术后新发不同程度心脏传导阻滞对一年后心脏传导的影响

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中国循环杂志 2025年第2期40卷 164-169页

作者：马继芳周游臧小彪宋卫锋陈珂赵智晗王现青赵永辉付海霞国家心血管病中心华中分中心、河南心血管病中心、阜外华中心血管病医院、郑州大学华中阜外医院心内科郑州450046

目的:探讨经导管主动脉瓣置换术(TAVR)后新发不同程度心脏传导阻滞对术后1年心脏传导的影响。方法:入选2019年7月至2022年10月于阜外华中心血管病医院行TAVR的患者130例,纳入其中术后新发心脏传导阻滞患者56例进行研究。根据心脏传导阻... 详细信息

目的:探讨经导管主动脉瓣置换术(TAVR)后新发不同程度心脏传导阻滞对术后1年心脏传导的影响。方法:入选2019年7月至2022年10月于阜外华中心血管病医院行TAVR的患者130例,纳入其中术后新发心脏传导阻滞患者56例进行研究。根据心脏传导阻滞程度不同分为轻度阻滞组(n=36)、中度阻滞组(n=9)与重度阻滞组(n=11),并对三组间临床特点及术后1年心脏传导情况进行比较分析。结果:平均随访(8.5±4.1)个月期间,56例TAVR术后新发心脏传导阻滞患者中,46例(82.1%)患者心脏传导阻滞部分或完全恢复,其中28例(50.0%)完全恢复心脏传导,10例(17.9%)患者心脏传导阻滞未恢复。轻度阻滞组中22例(61.1%)完全恢复房室传导,9例(25.0%)部分恢复,5例(13.9%)未恢复;中度阻滞组中,2例(22.2%)完全恢复房室传导,5例(55.6%)部分恢复,2例(22.2%)未恢复。三组间远期房室阻滞差异有统计学意义(P<0.001)。Kaplan-Meier曲线分析显示,轻度阻滞组房室传导恢复比例高于中、重度阻滞组(86.1%vs.77.8%vs.72.7%,logrank P=0.03)。Cox多因素分析显示,高龄(≥75岁,HR=1.204,95%CI:1.051~1.525,P=0.041)和术后重度传导阻滞(HR=1.106,95%CI:1.100~1.616,P=0.031)是TAVR术后1年心脏传导阻滞不恢复的独立危险因素。结论:TAVR术后新发心脏传导阻滞1年后50.0%完全恢复。新发重度心脏传导阻滞和高龄是TAVR术后1年心脏传导阻滞不恢复的独立危险因素。

关键词：经导管主动脉瓣置换术起搏器房室阻滞心律失常高龄

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Improvement of Cemented Gangue Backfill Material with Barium Hydroxide in Acid Mine Water

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Journal of Renewable Materials 2023年第3期11卷 1451-1467页

作者： Xiaoli Ye Yuxia Guo Peng Wang yonghui zhao Wenshuo Xie Guorui Feng College of Mining Technology Taiyuan University of TechnologyTaiyuan030024China Province Coal-Based Resources Green and High-Efficiency Development Engineering Center Taiyuan030024China

As a kind of green concrete,the mechanical properties and durability of cemented gangue backfill material(CGBM)will be affected if they are in acid mine water with sulfate ions in the long *** improve the performance of CGBM in acid mine water with sulfate ions,CGBM specimens with different doses of barium hydroxide were immersed in sulfuric acid solutions of different concentrations for 270 *** changes of mass,ultrasonic pulse velocity(UPV)and compressive strength of the specimens at different ages were *** electron microscopy(SEM)and X-ray diffraction(XRD)were used to analyze the microstructure and composition of the *** results show that incorporation of barium hydroxide into CGBM specimen can promote the formation of barium sulfate precipitation and inhibit the generation of corrosion products such as ***,barium sulfate precipitation blocks the pore channel invaded by sulfuric acid solution,delaying the progress of corrosion reaction and making the interior of CGBM specimen more *** the specimen with 2.0 kg/m^(3)barium hydroxide was more effective in improving *** study provides a basis for the ratio design of CGBM in acid mine water with sulfate ions.

关键词： Cemented gangue backfill material sulfate ions corrosion barium hydroxide microscopic performance deterioration mechanism

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Low temperature surface oxygen activation in crystalline MnO_(2) triggered by lattice confined Pd single atoms

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Journal of Energy Chemistry 2021年第11期30卷 136-144,I0003页

作者： Xuemei Liao yonghui zhao Changwen Liu Xiaopeng Li Yu Sund Kenichi Kato Miho Yamauchi Zheng Jiang College of Food and Biological Engineering Xihua UniversityChengdu 610039SichuanChina CAS Key Laboratory of Low-Carbon Conversion Science and Engineering Shanghai Advanced Research Institute(SARI)Chinese Academy of Sciences(CAS)No.100Haike RoadPudong New DistrictShanghai 201210China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityNo.2999 North Renmin RoadSongjiang DistrictShanghai 201620China Institute for the Advancement of Higher Education Hokkaido UniversitySapporo 060-0817Japan Department of Chemistry Faculty of ScienceHokkaido UniversityN10W8Kita-kuSapporoHokkaido 060-0810Japan RIKEN SPring-8 Center1-1-1 KoutoSayo-choSayo-gunHyogo 679-5148Japan International Institute for Carbon-Neutral Energy Research(WPI-I2CNER) Kyushu UniversityMotooka 744Nishi-kuFukuoka 819-0395Japan Advanced Institute for Materials Research(AIMR) Tohoku University2-1-1 KatahiraAoba-kuSendai 980-8577Japan Shanghai Synchrotron Radiation Facility Zhangjiang LabShanghai Advanced Research Institute(SARI)Chinese Academy of Sciences(CAS)No.239 Zhangheng RoadPudong New DistrictShanghai 201203China Shanghai Institute of Applied Physics Chinese Academy of ScienceNo.2019 Jia Luo RoadJiading DistrictShanghai 201800China

Tuning the coordination environment is the research axis of single atom catalysts (SACs). SACs are commonly stabilized by various defects from support. Here, we report a lattice confined Pd SAC using MnO_(2) as support. Compared with the Pd clusters anchored on the surface, the lattice confined Pd single atoms allows spontaneous exaction of surrounding lattice oxygen at room temperature when employed in CO oxidation. The MnO_(2) supported Pd SAC exhibited a high turnover frequency of 0.203 s^(−1) at low reaction temperature, which is higher than that of recently reported Pd SACs. Theoretical calculations also confirmed the confined monatomic Pd activate lattice oxygen with an ultralow energy barrier. Our results illustrate that the unique coordination environment of single atom provided by lattice confinement is promising to boost the activity of SACs.

关键词： Single atom catalysts(SACs) Lattice confinement Oxygen activation Manganese oxide nanofiber

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A universal direct tensile testing method for measuring the tensile strength of rocks

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International Journal of Mining Science and Technology 2024年第10期34卷 1443-1451页

作者： Yang Wu Jianfeng Liu Zhide Wu Junjie Liu yonghui zhao Huining Xu Jinbing Wei Wen Zhong State Key Laboratory of Hydraulic and Mountain River Engineering Sichuan UniversityChengdu 610065China College of Water Resource and Hydropower Sichuan UniversityChengdu 610065China CNPC Key Laboratory of Oil and Gas Underground Storage Engineering Langfang 065007China College of Resources and Environmental Engineering Jiangxi University of Science and TechnologyGanzhou 341000China

There is limited applicability to the current method for testing the direct tensile strength of rocks because it places stringent requirements on the testing *** work suggests a universal method based on the‘‘compression-to-tensiono idea in response to these *** applying pressure,this technique makes it possible to test the tensile strength of rocks directly with any conventional compression test *** was utilized as the test material in order to validate this suggested testing method,and the results showed what *** determining the true fracture area through digital reconstruction,an average calculated tensile strength of 5.97 MPa with a Cvof 0.04 was *** is a positive correlation between tensile strength and the joint roughness coefficient(JRC)of the failure *** aggregation mode of AE events with the loading process conforms to the damage characteristics of rock tensile *** direct tensile testing method proposed in this study not only has high universality but also produces test results with outstanding ***,factors influencing the results of the tensile test are pointed out,and recommendations for optimizing the suggested testing method are offered.

关键词： Rocks Direct tensile strength Granite Acoustic emission JRC

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