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Journal of Iron and Steel Research(International) 2024年第5期31卷 1127-1138页

作者： Hao Li Hong-mei Chen Xu Zhang Qian-hao zang Jing Zhang Di Feng Yan-xin Qiao Yu-hang Guo School of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang212100JiangsuChina School of Metallurgy and Materials Engineering Jiangsu University of Science and TechnologySuzhou215600JiangsuChina

The solidification methods of electromagnetic stirring(EMS)and non-electromagnetic stirring were employed to prepare Mg–6Gd–3Y–xZn–0.6Zr(x=1,1.5,2,3)*** evolution of alloy microstructures and the changes in properties were analyzed for different Zn *** has been observed that in alloys without electromagnetic stirring,as the Zn content increases,the alloy structure gradually *** primary second phase transitions from Mg5RE phase to long-period stacking ordered(LPSO)phase,resulting in improved hardness and *** alloys subjected to electromagnetic stirring,there is a relatively higher content of the second phase,primarily consisting of LPSO *** applying electromagnetic stirring,the quantity and the type of LPSO phase in the alloy *** alloy structure becomes more uniform with electromagnetic stirring,resulting in increased hardness and reduced hardness gradients within the *** mechanical properties of alloys with electromagnetic stirring are superior to those without electromagnetic stirring.

关键词： Rare earth magnesium alloy LPSO phase Electromagnetic stirring Casting Property

Multi-stimuli-responsive aggregation-induced emission copper iodide cluster

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Science China Chemistry 2024年第4期67卷 1193-1197页

作者： Bo Li Yuan-Yuan Liu Peng Luo Ye-Ru Liu Ying-Jun Chen Kai Li Shuang-Quan zang College of Chemistry and Pharmacy Engineering Nanyang Normal UniversityNanyang 473061China Green Catalysis Center and College of Chemistry Zhengzhou UniversityZhengzhou 450001China

Stimuli-responsive luminescent materials have attracted significant attention in the development of smart photoactive materials for both fundamental research and technological *** this work,a new copper iodide cluster(1)with aggregationinduced emission(AIE)characteristic,was obtained combining Cu_(4)I_(4) core with rhodamine B derivative ligand.1 has reversible and distinct multi-stimuli-responsive luminescence for external temperature,volatile organic compound,and mechanical ***,1 exhibited unusual large blue shift(84 nm)after being ground,which originated from the change of intermolecular ***,1 exhibits high oxygen quenching efficiency for 82.2% at 1 *** studies showed that the multi-stimuli-responsive luminescence properties of 1 can be attributed to the regulation of cluster-centered luminescence process,metal-to-ligand charge transfer process,halide-to-metal charge transfer luminescence process and aggregationinduced barrier to oxygen *** work not only reports an AIE copper iodide cluster,but also provides a new strategy to develop multi-stimuli-responsive luminescence materials.

关键词： copper iodide cluster aggregation-induced emission multi-stimuli-response

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Accurate identification of glass crystallization helps in selecting high electronic conductivity materials

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Progress in Natural Science:Materials International 2024年第3期34卷 503-511页

作者： Fanhou Kong Shuli Li Suoqi Zhao Huiwen Li Lin Li Zhenting zang Rui Zhang Hongrui Liu Lehan Wang Changjiu Li Keng H.Chung Dongying Key Laboratory of New Energy Materials and Devices & School of Chemical Engineering Shandong Institute of Petroleum and Chemical Technology Special Glass Key Lab of Hainan Province & State Key Laboratory of Marine Resource Utilization in South China Sea Hainan University

Though the current research on vanadium-based glass electrodes has made great progress, the conductivity theory of V-based glasses has not been obviously improved and crystals cannot be positioned precisely. The changes in the valence state of V3+, V4+and V5+are regulated by the strong reducing agent Fe2P to realize valence bond transformation of the amorphous electrode, explore the redox process of multi-electron reactions and further optimize the conductivity of electrode materials. VPFe2 and VPFe3 precipitate VO2crystals and VPFe4 precipitates VO2and V6O11crystals. Electron back-scattered diffraction was used to accurately identify the distribution and specific positions of both types of crystals. V6O11crystals exhibit a strong texture according to pole figure and inverse pole figure. XPS reveals that Fe2P and V2O5, undergo a redox reaction during the hightemperature melting process, where V5+is reduced to V4+and V3+and V4+renders a positive influence on conductivity. The addition of Fe2P increases the content of V4+in the glass and VPFe3 glass contains the highest content of V4+, leading to the highest electronic conductivity. V2O5transforms into VO2crystals and VO2transforms into V6O11with the increase of Fe2P content. The type of nanocrystal precipitation in glass affects electronic conductivity.

关键词： Electron back-scattered diffraction Electronic conductivity Glass crystallization Multi-electron reactions V2O5

Rational design multi-color-emissive chemiluminescent carbon nanodots in a single solvothermal reaction

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Nano Research 2024年第6期17卷 4651-4660页

作者： Guang-Song Zheng Cheng-Long Shen Yuan Deng Kai-Kai Liu Jin-Hao zang Lin Dong Qing Lou Chong-Xin Shan Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Materials PhysicsMinistry of Educationand School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450052China

Recently,the chemiluminescence(CL)induced by carbon nanodots(CDs)has intrigued researchers’extensive interests in various applications due to its special light emission ***,the difficulty of synthesizing chemiluminescent CDs with full-spectrum emission severely hinders the further regulation of the CL emission ***,the multi-color-emissive chemiluminescent CDs are rational designed and further synthesized by regulating the sp2-hybrid core and sp3-hybrid surface from the citrate-ammonia molecular in a single solvothermal *** experimental characterizations and density functional theory calculations reveal that the higher temperature can promote the crosslinking polymerization/carbonization of carbon core and the higher protonation of solvent can determine the core size of final CDs,resulting in the variant CL emission from molecular-,crosslinking-and ***,the CL emission of the CDs can be further synthesized by tuning the luminescence chromophores in the formation process via regulating the temperature and solvent,enabling the applications of the CL CDs in illumination and information *** study paves a new technology to understand the luminescence of CDs and affords an industry translational potential over traditional chemiluminescent molecular.

关键词： carbon nanodots chemiluminescence regulation energy level alignment mechanism

苏北盆地溱潼凹陷古新统阜宁组二段侵入岩围岩变质带储层特征及其成藏意义

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石油实验地质 2024年第2期46卷 238-246页

作者：臧素华中国石化华东油气分公司勘探开发研究院南京210000

火山岩油气藏是油气勘探的重要领域之一。苏北盆地溱潼凹陷侵入岩分布广泛,油气显示活跃,已成为我国东部陆相盆地油气深化勘探和规模增储的重要领域,具备良好的勘探前景。然而,目前针对火山岩对泥页岩围岩储层及其成藏影响的研究较为缺... 详细信息

火山岩油气藏是油气勘探的重要领域之一。苏北盆地溱潼凹陷侵入岩分布广泛,油气显示活跃,已成为我国东部陆相盆地油气深化勘探和规模增储的重要领域,具备良好的勘探前景。然而,目前针对火山岩对泥页岩围岩储层及其成藏影响的研究较为缺乏,泥页岩围岩变质带能否作为勘探重点领域有待深入评价。为了推动苏北盆地侵入岩围岩变质带新类型油藏勘探,以溱潼凹陷阜二段侵入岩围岩变质带为研究对象,综合岩心、薄片、全岩、测井等资料,系统揭示了泥页岩变质带储层特征,明确了岩浆侵入对阜二段变质带油气成藏的贡献。研究表明,溱潼凹陷阜二段泥页岩受岩浆侵入影响,泥页岩围岩发生蚀变形成环状变质带储层,岩浆的侵入具有明显“增储作用”;变质带储层发育孔隙、裂缝两类储集空间,储层发育程度受侵入岩厚度及烘烤强度控制,岩浆的侵入具有“催熟作用”,同等深度下泥页岩Ro可增加0.4%~0.5%;阜宁组侵入岩形成于吴堡期—三垛期,火成岩侵入形成环状变质带的时间早于油气充注期,具有良好的成藏匹配关系。受岩浆侵入、侵入岩空间分布以及源储匹配关系控制,溱潼凹陷阜二段侵入岩围岩变质带具有源储一体、近源富集的特征,是规模增储的新阵地。

关键词：储层特征围岩变质带阜宁组二段古新统溱潼凹陷苏北盆地

Few-Shot Named Entity Recognition with the Integration of Spatial Features

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Wuhan University Journal of Natural Sciences 2024年第2期29卷 125-133页

作者： LIU Zhiwei HUANG Bo XIA Chunming XIONG Yujie zang Zhensen ZHANG Yongqiang College of Electrical and Electronic Engineering Shanghai University of Engineering ScienceShanghai 201620China Shanghai Zhongyu Academy of Industrial Internet Shanghai 201620China AIoT Manufacturing Solutions Technology Co. Ltd.Hefei 230000AnhuiChina

The few-shot named entity recognition(NER)task aims to train a robust model in the source domain and transfer it to the target domain with very few annotated ***,some approaches rely on the prototypical network for ***,these approaches often overlook the spatial relations in the span boundary matrix because entity words tend to depend more on adjacent *** propose using a multidimensional convolution module to address this limitation to capture short-distance spatial ***,we uti-lize an improved prototypical network and assign different weights to different samples that belong to the same class,thereby enhancing the performance of the few-shot NER *** experimental analysis demonstrates that our approach has significantly improved over baseline models across multiple datasets.

关键词： named entity recognition prototypical network spatial relation multidimensional convolution

Impact of the gut microbiome on atherosclerosis

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mLife 2024年第2期3卷 167-175页

作者： Yuqin Mao Chao Kong Tongtong zang Lingsen You Li-Shun Wang Li Shen Jun-Bo Ge Department of Cardiology Shanghai Institute of Cardiovascular DiseasesZhongshan HospitalFudan UniversityShanghaiChina National Clinical Research Center for Interventional Medicine ShanghaiChina Center for Traditional Chinese Medicine and Gut Microbiota Minhang HospitalFudan UniversityShanghaiChina

Atherosclerosis is a chronic inflammatory metabolic disease with a complex ***,the exact details of its pathogenesis are still unclear,which limits effective clinical treatment of ***,multiple studies have demonstrated that the gut microbiota plays a pivotal role in the onset and progression of *** review discusses possible treatments for atherosclerosis using the gut microbiome as an intervention target and summarizes the role of the gut microbiome and its metabolites in the development of *** strategies for the treatment of atherosclerosis are *** review provides clues for further research on the mechanisms of the relationship between the gut microbiota and atherosclerosis.

关键词： atherosclerosis coronary heart disease gut microbiome metabolites treatment

CD146,a therapeutic target involved in cell plasticity

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Science China(Life Sciences) 2024年第8期67卷 1563-1578页

作者： Zhenzhen Wu Yuzhe zang Chuyi Li Zhiheng He Jingyu Liu Zhaoqi Du Xinran Ma Lin Jing Hongxia Duan Jing Feng Xiyun Yan CAS Engineering Laboratory for Nanozyme Key Laboratory of BiomacromoleculesInstitute of BiophysicsChinese Academy of SciencesBeijing 100101China College of Life Sciences University of Chinese Academy of SciencesBeijing 100049China Nanozyme Laboratory in Zhongyuan Henan Academy of Innovations in Medical ScienceZhengzhou 451163China Joint Laboratory of Nanozymes in Zhengzhou University School of Basic Medical SciencesZhengzhou UniversityZhengzhou 450001China

Since its identification as a marker for advanced melanoma in the 1980s,CD146 has been found to have multiple functions in both physiological and pathological processes,including embryonic development,tissue repair and regeneration,tumor progression,fibrosis disease,and *** research has revealed that CD146 is involved in various signaling pathways as a receptor or coreceptor in these *** correlation between CD146 and multiple diseases has sparked interest in its potential applications in diagnosis,prognosis,and targeted *** better comprehend the versatile roles of CD146,we have summarized its research history and synthesized findings from numerous reports,proposing that cell plasticity serves as the underlying mechanism through which CD146 contributes to development,regeneration,and various *** CD146 would consequently halt cell state shifting during the onset and progression of these related ***,the development of therapy targeting CD146 holds significant practical value.

关键词： CD146 cell plasticity therapeutic target

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A Novel Poly(3-hexylthiophene) Engineered Interface for Electrochemical Monitoring of Ascorbic Acid During the Occurrence of Glutamate-Induced Brain Cytotoxic Edemas

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Research 2024年第1期2023卷 301-313页

作者： Zexuan Meng Yuchan Zhang Lu Yang Shuang Zhao Qiang Zhou Jiajia Chen Jiuxi Sui Jian Wang Lizhong Guo Luyue Chang Jialing He Guixue Wang Guangchao zang Institute of Life Science and Laboratory of Tissue and Cell BiologyLab Teaching and Management CenterChongqing Medical UniversityChongqing 400016China Key Laboratory for Biorheological Science and Technology of Ministry of Education State and Local Joint Engineering Laboratory for Vascular ImplantsBioengineering College of Chongqing UniversityChongqing 400030China Jinfeng Laboratory Chongqing 401329China Department of Pathophysiology Chongqing Medical UniversityChongqingChina

Although neuroelectrochemical sensing technology offers unique benefits for neuroscience research,its application is limited by substantial interference in complex brain environments while ensuring biosafety *** this study,we introduced poly(3-hexylthiophene)(P3HT)and nitrogen-doped multiwalled carbon nanotubes(N-MWCNTs)to construct a composite membrane-modified carbon fiber microelectrode(CFME/P3HT-N-MWCNTs)for ascorbic acid(AA)*** microelectrode presented good linearity,selectivity,stability,antifouling,and biocompatibility and exhibited great performance for application in neuroelectrochemical ***,we applied CFME/P3HT-N-MWCNTs to monitor AA release from in vitro nerve cells,ex vivo brain slices,and in vivo living rat brains and determined that glutamate can induce cell edema and AA *** also found that glutamate activated the N-methyl-d-aspartic acid receptor,which enhanced Na^(+) and Cl^(−) inflow to induce osmotic stress,resulting in cytotoxic edema and ultimately AA *** study is the first to observe the process of glutamate-induced brain cytotoxic edema with AA release and to reveal the *** work can benefit the application of P3HT in in vivo implant microelectrode construction to monitor neurochemicals,understand the molecular basis of nervous system diseases,and discover certain biomarkers of brain diseases.

关键词： release microelectrode Engine

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基于扩张滑模观测器的电液伺服系统鲁棒控制

浙江大学学报（工学版） 2024年第3期58卷 611-621页

作者：臧万顺沈刚赵军臧克江青岛理工大学信息与控制工程学院山东青岛266520 安徽理工大学安徽省煤矿安全采掘装备制造业创新中心安徽淮南232001 安徽理工大学机电工程学院安徽淮南232001 山东科技大学交通学院山东青岛266590 龙岩学院物理与机电工程学院福建龙岩364012

为了提高电液伺服系统(EHSSs)控制性能,考虑外部干扰力、摩擦力、参数变动、结构振动及未建模特性等系统不确定性,构建系统状态空间模型.为了应对系统不确定性,提出新型扩张滑模观测器(ESMO),用于同时估计系统全状态和系统不确定性,并... 详细信息

为了提高电液伺服系统(EHSSs)控制性能,考虑外部干扰力、摩擦力、参数变动、结构振动及未建模特性等系统不确定性,构建系统状态空间模型.为了应对系统不确定性,提出新型扩张滑模观测器(ESMO),用于同时估计系统全状态和系统不确定性,并结合等值注入原理及饱和函数进行合理优化.利用系统不确定性的估计值,在反步控制设计中引入障碍Lyapunov函数,将系统的跟踪误差约束在一定范围内,结合参数自适应律,提高系统控制性能.为了验证所提控制方法的性能,在MATLAB/Simulink软件平台构建仿真模型,进一步地,搭建电液伺服系统实验台及实时控制系统,进行仿真和实验验证.结果表明所提方法的性能优于基于障碍Lyapunov函数的反步控制器及传统的反步控制器.

关键词：电液伺服系统系统不确定性扩张滑模观测器参数自适应障碍Lyapunov函数反步控制

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