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Influence of self-similar stresses on scenario earthquake construction:An example along the Tanlu Fault

Science China Earth Sciences 2024年第5期67卷 1687-1697页

作者： Feng HU Huajian YAO Houyun YU zeyu lu Jieyi HOU Song luO Zhigang SHAO Xiaofei CHEN School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China Mengcheng Geophysical National Field Scientific Observatory Hefei 230026China Department of Earth and Space Science Southern University of Science and TechnologyShenzhen 518055China Institute of Earthquake Prediction China Earthquake AdministrationBeijing 100036China

As a famous deep and large fault in eastern China,the Tanlu Fault passes through Anhui,Jiangsu,and Shandong and into northeastern *** is important to improve the understanding of seismic hazard assessments in areas near *** start a scenario earthquake simulation in the M7.5 earthquake potential area of the Xinyi-Sihong segment of the Tanlu *** fault rupture length and width are constrained according to the scaling law of large intraplate earthquakes,the background normal stress is depth dependent,and the initial shear stresses are determined using trial and error by matching the earthquake *** the 120 km rupture length of the M7.5 earthquake,we compare the horizontal uniform stress model and self-similar stress perturbation *** findings reveal that the seismic source time function of the horizontal uniform stress model is similar to that of the Haskell model and that of the self-similar stress perturbation model is more similar to that of a real earthquake *** compare the dynamic rupture simulation and ground motion results under four different stress conditions and find that the shorter the characteristic length of the self-similar function is,the rougher the initial *** the M7.5earthquake with an epicenter in the vicinity of Suqian,the Xinyi-Tancheng segment,which is located in the IX-intensity zone north of the epicenter,vibrates more strongly on the northern side than on the southern side due to the influence of the lowvelocity zone and the peak slip *** response spectra analysis at stations in the study area is useful for improving the earthquake resistance capability.

关键词： Scenario earthquakes Self-similar stress Tanlu Fault Dynamic rupture Ground motion

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Spontaneous hierarchical surface engineering of minerals through coupled dissolution-precipitation chemistry

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Aggregate 2024年第1期5卷 460-472页

作者： Jinyang Jiang Jiawen Zhang Lanxin Wang zeyu lu Fengjuan Wang Zhiyong Liu Hongbo Zeng Jiangsu Key Laboratory of Construction Materials School of Materials Science and EngineeringSoutheast UniversityNanjingChinal 2Chemical and Materials EngineeringUniversity of AlbertaEdmontonAlbertaCanada

Peculiar hierarchical microstructures in creatures inspire modern material design with distinct *** can effortlessly construct sophisticated yet long-range ordered microstructure across bio-membrane through ion secretion and ***,microstructure biomimicry in current technology generally requires elaborate,point-by-point ***,a spontaneous yet controllable strategy is developed to achieve surface microstructure engineering through a natural surface phenomenon similar to ion secretion-precipitation,that is,coupled dissolution-precipitation.A series of hierarchical microstructures on mineral surfaces in fluids with tunable morphology,orientation,dimension,and spatial distribution are achieved by simply controlling initial dissolution and fluid *** seawater,long-range ordered film of vertically aligned brucite flakes forms through interfacial dissolution,nucleation,and confinement-induced orientation of flakes with vertically grown{110}plane,on the edge of which,fusiform aragonite epitaxially *** negligible initial surface dissolution,prismatic aragonite epitaxially grows on a calcite polyhedron-packed *** tuning fluid chemistry,closely packed calcite polyhedron and loosely packed calcite micro-pillars are engineered through rapid and retarded precipitation,***,the spontaneously grown microstructures resemble those deliberately created by human or found in nature,and tremendously modulate surface *** findings open new possibilities for facile and customizable engineering of microstructural surfaces,hierarchical heterostructures,and biomimetic materials.

关键词： directional crystallization dissolution-precipitation chemistry hierarchical microstructures spontaneous growth surface engineering

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多元文化影响下蒙古族刺绣发展探究

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丝网印刷 2024年第19期 28-30页

作者：卢泽煜刘娜内蒙古农业大学材料科学与艺术设计学院

蒙古族刺绣作为我国北方游牧民族手工艺的代表,其发展受到诸多文化的影响。文章以制度、移民和宗教文化为切入点,探究多元文化影响下蒙古族刺绣的发展及其艺术内涵。

关键词：蒙古族刺绣多元文化发展艺术内涵

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不接地系统跨线两点相继接地故障多级保护技术

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供用电 2024年第5期41卷 56-63页

作者：刘勇刘大鹏穆勇李振成王顺卢泽钰国网冀北电力有限公司唐山供电公司河北唐山063000

针对配电网单点接地故障保护问题已经进行了大量研究,但对于跨线两点相继接地故障保护问题研究甚少。首先,基于不接地系统的后发接地故障暂态等值电路,推导了第二次接地故障时,各线路零序电流和母线零序电压暂态量的表达式,分析了欠阻... 详细信息

针对配电网单点接地故障保护问题已经进行了大量研究,但对于跨线两点相继接地故障保护问题研究甚少。首先,基于不接地系统的后发接地故障暂态等值电路,推导了第二次接地故障时,各线路零序电流和母线零序电压暂态量的表达式,分析了欠阻尼和过阻尼情况下,故障线路与健全线路暂态功率分布差异,发现暂态功率方向法对于两点相继接地故障具有良好的适用性。然后,分析了基于暂态功率方向的相继接地故障多级保护技术在单端供电单回线配电网和两端供电配电网中的应用与整定,进一步对保护级差和两条故障线路相互影响进行了分析。最后,通过仿真验证了该方法的真实性和有效性。该方法算法简单,由馈线终端单独完成,不依赖主站及通信,可以较好地解决不接地系统相继接地故障多级保护问题。

关键词：不接地系统跨线故障两点相继接地暂态特征暂态检测多级保护技术

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Global structures of the DE3 tide

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Chinese Science Bulletin 2009年第6期54卷 1073-1079页

作者： CHEN zeyu lu DaRen LAGEO/Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China

The Hough mode decomposition (HMD) is used to investigate the global structures of the eastward propagating diurnal tide of zonal wavenumber 3 (DE3). The tide is delineated by using the SABER/ TIMED temperatures collected during 2002―2006. The HMD analysis results show that the DE3 tide is primarily dominated by two leading propagating Hough modes, i.e., (-3, 3) and (-3, 4) modes; the in-fluences .of the other Hough modes including trapped modes can be neglected. Based upon the HMD analysis results, this paper first reported the maximum of the tidal activity in the MLT region. The re-sults show that the DE3 tide exhibits annual unimodal distribution with the maximal amplitude occur-ring at 110 km in late summer (around July each year). Moreover, characteristic 2-year period variation is observed in the (-3, 3) Hough mode. And this type of inter-annual variation is further reflected in the tidal amplitude at 110 km height. For example, corresponding to the 2-year variation of the (-3, 3) mode, the DE3 tidal amplitude exhibits two substantially enhanced activities with maximal amplitude exceed-ing 12 K in 2002 and 2004, respectively. Moreover, current investigation results indicate that the influ-ence of the second propagating Hough mode, (-3, 4) mode, is important, in particular at the height un-der 100 km, where the DE3 amplitudes exhibit antisymmetric distribution with respect to the equator. The (-3, 4) mode exhibits bimodal distribution over a yearly course, which dominates the DE3 tide in the lower mesosphere. For example, two maximal DE3 activities were observed in late-winter-to-early- spring and late-autumn-to-early-winter, respectively. The first maximum is seen in the south of the equator, and the second maximum is in the north of it.

关键词：大蛋白潮流结构头盔显示器大振幅模式分解年际变化调查结果

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国企女性人力资源管理者胜任力研究

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北方经贸 2024年第5期 135-138页

作者：王侨潞卢泽宇王鹏瑶黑龙江诺康石墨新材料科技有限公司哈尔滨150001 黑龙江省交投资产经营有限公司哈尔滨150001

在国有企业改革发展过程中,人力资源管理者的工作产出对国有企业的整体运营有着至关重要的作用。本研究打破了人力资源固有的框架思维审视偏见,通过分层次构建胜任力体系,基于现存问题对国企女性人力资源管理者的胜任力进行有针对性的研... 详细信息

在国有企业改革发展过程中,人力资源管理者的工作产出对国有企业的整体运营有着至关重要的作用。本研究打破了人力资源固有的框架思维审视偏见,通过分层次构建胜任力体系,基于现存问题对国企女性人力资源管理者的胜任力进行有针对性的研究,提出客观进行自我效能评价、发挥女性情绪智力长板、增强战略性前瞻性全局性、提升行业洞察力敏捷力、克服个人主观内置情绪、提升大数据应用能力等对策建议。

关键词：国有企业女性人力资源管理者胜任力

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A low-cost in-situ CO_(2) sensor based on a membrane and NDIR for long-term measurement in seawater

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Journal of Oceanology and Limnology 2022年第3期40卷 986-998页

作者： Meng LI Baolu DU Jinjia GUO Zhihao ZHANG zeyu lu Rong’er ZHENG College of Information Science and Engineering Ocean University of ChinaQingdao 266100China R&D Center for Marine Instruments and Apparatuses Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China

The multi-point simultaneous long-term measurement of CO_(2) concentration in seawater can provide more-valuable data for further understanding of the spatial and temporal distribution of CO_(2).Thus,the requirement for a low-cost sensor with high precision,low power consumption,and a small size is becoming *** this work,an in-situ sensor for CO_(2) detection in seawater,based on a permeable membrane and non-dispersive infrared(NDIR)technology,is *** sensor has a small size(Ф66 mm×124 mm),light weight(0.7 kg in air),low power consumption(<0.9 W),low cost(

关键词： in-situ sensor dissolved CO_(2) long-term measurement permeable membrane non-dispersive infrared(NDIR) low-cost

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面向肩关节康复的气压驱动外骨骼机器人设计与康复动作规划研究

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机械传动 2024年第10期48卷 75-82页

作者：路泽宇郭冰菁韩建海李向攀李珍珠董应明河南科技大学机电工程学院河南洛阳471003 河南省机器人与智能系统重点实验室河南洛阳471003 云南省机电一体化应用技术重点实验室云南昆明650031

基于肩关节损伤病理进行分析,针对肩关节垂直轴与冠状轴的运动,设计了面向肩关节康复的气压驱动外骨骼机器人。结合肩关节损伤康复训练临床治疗方法与人体工程学原理,确定机器人肩关节的结构与运动范围;设计了气动摆动缸驱动系统,可提... 详细信息

基于肩关节损伤病理进行分析,针对肩关节垂直轴与冠状轴的运动,设计了面向肩关节康复的气压驱动外骨骼机器人。结合肩关节损伤康复训练临床治疗方法与人体工程学原理,确定机器人肩关节的结构与运动范围;设计了气动摆动缸驱动系统,可提供机器人关节的反向驱动特性,提高康复训练的被动柔顺性。建立外骨骼康复训练机器人运动学模型,仿真得到机器人的工作空间,并与人体肩关节运动空间进行了对比。结果表明,设计的机器人工作空间能满足人体肩关节康复训练的需求。设计了康复训练机器人关节的独立与复合动作,可完成肩关节内旋/外旋、屈曲/伸展、够取运动等多种康复训练作业治疗。经试验验证,在样机按规划动作的运动轨迹运行中,气动摆动缸驱动的机器人关节运动平稳,轨迹跟踪误差满足康复训练要求,验证了外骨骼康复机器人结构设计的合理性和康复动作规划的可行性。

关键词：肩关节外骨骼康复机器人结构设计气压驱动康复动作规划

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Effects of high-dose glucose-insulin-potassium on acute coronary syndrome patients receiving reperfusion therapy:a meta-analysis

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World Journal of Emergency Medicine 2024年第3期15卷 181-189页

作者： zeyu Yang Huiruo Liu Dazhou lu Shengchuan Cao Feng Xu Chuanbao Li Department of Emergency Medicine Qilu Hospital of Shandong UniversityJinan 250012China Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine Institute of Emergency and Critical Care Medicine of Shandong UniversityChest Pain CenterQilu Hospital of Shandong UniversityJinan 250012China Key Laboratory of Emergency and Critical Care Medicine of Shandong Province Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong ProvinceShandong Provincial Engineering Laboratory for Emergency and Critical Care MedicineQilu Hospital of Shandong UniversityJinan 250012China Shandong Key Laboratory:Magnetic Field-free Medicine&Functional Imaging(MF) Qilu Hospital of Shandong UniversityJinan 250012China National Medical Products Administration(NMPA)Key Laboratory for Clinical Research and Evaluation of Innovative Drug Qilu Hospital of Shandong UniversityJinan 250012China

BACKGROUND:This meta-analysis aimed to assess the efficacy of high-dose glucose-insulinpotassium(GIK) therapy on clinical outcomes in acute coronary syndrome(ACS) patients receiving reperfusion ***:We searched the PubMed,Web of Science,MEDLINE,Embase,and Cochrane Library databases from inception to April 26,2022,for randomized controlled trials(RCTs) that compared high-dose GIK and placebos in ACS patients receiving reperfusion *** primary endpoint was major adverse cardiovascular events(MACEs).RESULTS:Eleven RCTs with 884 patients were ultimately *** with placebos,high-dose GIK markedly reduced MACEs(risk ratio [RR] 0.57,95% confidence interval [95% CI]:0.35 to 0.94,P=0.03) and the risk of heart failure(RR 0.48,95% CI:0.25 to 0.95,P=0.04) and improved the left ventricular ejection fraction(LVEF)(mean difference [MD] 2.12,95% CI:0.40 to 3.92,P=0.02) at 6 ***,no difference was observed in all-cause mortality at 30 d or 1 ***,high-dose GIK was significantly associated with increased incidences of phlebitis(RR 4.78,95% CI:1.36 to 16.76,P=0.01),hyperglycemia(RR 9.06,95% CI:1.74 to 47.29,P=0.009) and hypoglycemia(RR 6.50,95% CI:1.28 to 33.01,P=0.02) but not reinfarction,hyperkalemia or secondary *** terms of oxidative stress-lowering function,high-dose GIK markedly reduced superoxide dismutase(SOD) activity but not glutathione peroxidase(GSH-Px) or catalase(CAT) ***:Patients with ACS receiving reperfusion therapy exhibited a reduction in MACEs and good oxidative stress-lowering eflcacy in response to high-dose ***,with a higher incidence of complications such as phlebitis,hyperglycemia,and ***,there were no observed survival benefits associated with high-dose *** trials with long-term follow-up are still needed.

关键词： Acute coronary syndrome High-dose Glucose-insulin-potassium treatment Reperfusion therapy Meta-analysis

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长链非编码RNA调控牛科反刍动物相关经济性状的研究进展

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中国畜牧兽医 2024年第1期51卷 203-211页

作者：陈宇刘俊阳穆卿卢泽宇李蕴华刘佳森吴子贤王浩源孙一文赵艳红内蒙古农业大学动物科学学院内蒙古自治区动物遗传育种与繁殖重点实验室农业农村部肉羊遗传育种重点实验室呼和浩特010018 内蒙古自治区农牧业科学院畜牧研究所呼和浩特010031

长链非编码RNA (long non-coding RNA,lncRNA)是一种长度>200 nt、自身不具有编码能力的真核生物转录本,主要通过转录水平、转录后水平和表观遗传学调控基因的表达,在动植物基因组中普遍存在。lncRNA是一种在动植物生长发育、细胞分化... 详细信息

长链非编码RNA (long non-coding RNA,lncRNA)是一种长度>200 nt、自身不具有编码能力的真核生物转录本,主要通过转录水平、转录后水平和表观遗传学调控基因的表达,在动植物基因组中普遍存在。lncRNA是一种在动植物生长发育、细胞分化及疾病发生中起着关键作用的调控分子。相较于医疗领域的研究,lncRNA在牛科反刍动物中的研究尚处于起步阶段,特别是调控牛科反刍动物相关经济性状的研究鲜见报道。近年来,高通量测序与微阵列技术的迅速发展,为lncRNA的鉴定提供了更为高效快速的方法。笔者对lncRNA的研究发现、特征分类、转录后水平调控作用机制以及其在牛科反刍动物的肌肉生长、毛囊发育和泌乳性状等方面的研究进行综述,旨在为进一步研究lncRNA在牛科反刍动物生长发育中的调控机制提供理论参考。

关键词： lncRNA 牛科反刍动物生长发育经济性状

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