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Role of yttrium content in twinning behavior of extruded Mg−Y sheets under tension/compression

Transactions of Nonferrous Metals Society of China 2022年第11期32卷 3534-3549页

作者： Yan-qin CHAI dong-di yin Shen HUA Guang-hao HUANG Hao ZHOU Jiang ZHENG Qu-dong WANG Key Laboratory of Advanced Technologies of Materials Ministry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China Nano and Heterogeneous Materials Center School of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing 210094China Shenyang National Laboratory for Materials Science International Joint Laboratory for Light Alloys(Ministry of Education)College of Materials Science and EngineeringChongqing UniversityChongqing 400044China National Engineering Research Center of Light Alloys Net Forming School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China

The influence of Y content on the grain-scale twinning behavior in extruded Mg−xY(x=0.5,1,5,wt.%)sheets under uniaxial tension and compression along the extruded direction was statistically *** automatic twin variant analysis was employed,based on large data sets obtained by electron backscatter diffraction(EBSD),including 2691 grains with 977 ***{1012}tension twinning(TTW)dominance and prevailing anomalous twinning behavior(Schmid factor(m)ding,indicating a promoted stochasticity of twin variant selection for more concentrated Mg−Y ***,the trend for the Y-content dependent anomalous twinning behavior was opposite in *** fractions of the anomalous TTWs were found to be well correlated with the maximum Schmid factor(m_(max))values of basal slip and prismatic slip in the corresponding parent grains for compression and tension,respectively,indicating that twinning and dislocation slip might be closely related in the present Mg−Y alloys.

关键词： Mg−RE alloys deformation twinning twin variant selection Schmid factor anomalous twin

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Decentralized fault diagnosis of discrete-event systems with unreliable sensors using linear temporal logic

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Science China(Information Sciences) 2025年第1期68卷 322-341页

作者： Weijie dong Shaoyuan LI Xiang yin Key Laboratory of System Control and Information Processing Ministry of EducationDepartment of Automation Shanghai Jiao Tong University

In this paper,we investigate a decentralized diagnosis problem of a discrete-evnt system(DES) subject to unreliable sensors,where the sensor observations of local diagnosers may be non-deterministic as a result of possible *** studies on decentralized robust diagnosis can only deal with different types of sensor failures separately,e.g.,all sensors suffer from the same type of sensor failures such as intermittent sensor failures or permanent sensor ***,since sensors of different local diagnosers may face different external environments and have different internal characteristics,sensors corresponding to different local diagnosers may also have their own fault *** this paper,we propose a flexible framework of decentralized diagnosis for DES subject to unreliable sensors such that sensors of different local diagnosers are permitted to have different types of sensor *** this end,we extend the existing decentralized diagnosis framework to the case where there exist common sensors broadcasting their observations to all local *** apply linear temporal logic(LTL) to constrain infinite behaviors of private sensors of local diagnosers and common ***,a new notion of φ-codiagnosability is proposed as the necessary and sufficient condition for the existence of a decentralized diagnoser that works correctly under sensors,satisfying LTL-based sensor ***,we provide an effective approach to verify the φ-codiagnosability.

关键词： discrete event systems decentralized diagnosis codiagnosability automata

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Metal-organic frameworks with dinuclear metal centers for synergistically boosting CO2 photoreduction

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Science China Chemistry 2025年第1期68卷 201-208页

作者： Hui-Feng Wang Wen-Jie Shi Yu-Xin Yang Bao-Xia dong Tong-Bu Lu di-Chang Zhong School of Chemistry and Chemical Engineering Yangzhou University Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology

dinuclear metal synergistic catalysis （DMSC） has been proved powerful in boosting CO2reduction,while this has not been achieved in heterogeneous catalysts with long-range order *** this study,we,by introduction of metal catalytic centers into an indium-based metal-organic framework （MOF）,obtained a series of isostructural In-MOFs,including three MOFs with mononuclear metal catalytic center （M-In）,three MOFs with dinuclear homometallic catalytic centers （MM-In）,and three MOFs with dinuclear heterometallic catalytic centers (MM’-In,M/M’=Co（II）,Ni（II）,Zn（II）).It was found that all these MOFs can serve as catalysts for photochemical CO2reduction to *** with M-In,the catalytic activities of MM-In were obviously enhanced,and that of MM’-In was further significantly *** example,the CO yield of Co Zn-In reaches a record value of 12,700μmol g-1h-1,which is 4.0,8.1,9.4,and 18.6-fold higher than that of Co Co-In,Zn Zn-In,Co-In,and Zn-In,***,the catalytic activities of Co Ni-In and Ni Zn-In also show different fold increase than those of corresponding dinuclear homometallic and mononuclear metallic *** results of control experiments and theoretical calculation reveal that the higher catalytic activities of MM-In over M-In can be ascribed to the DMSC effect,and the higher catalytic activity of MM’-In over MM-In can be ascribed to the strengthened DMSC *** work reveals the relationship between DMSC effect and bimetal centers in CO2reduction,which provides new insights into the DMSC and paves a new way to design highly active catalysts for photochemical CO2reduction.

关键词： metal-organic frameworks dinuclear metal centers synergistic catalysis CO2 reduction photocatalysis

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CNKSR2 interactome analysis indicates its association with the centrosome/microtubule system

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Neural Regeneration Research 2025年第8期20卷 2420-2432页

作者： Lin yin Yalan Xu Jie Mu Yu Leng Lei Ma Yu Zheng Ruizhi Li yin Wang Peifeng Li Hai Zhu dong Wang Jing Li Institute for Translational Medicine The Affiliated Hospital of Qingdao UniversityMedical CollegeQingdao UniversityQingdaoShandong ProvinceChina School of Basic Medicine Qingdao UniversityQingdaoShandong ProvinceChina College of Life Sciences and School of PharmacyMedical CollegeQingdao UniversityQingdaoShandong ProvinceChina Department of Urology Qingdao Municipal Hospital Affiliated to Qingdao UniversityQingdaoShandong ProvinceChina

The protein connector enhancer of kinase suppressor of Ras 2(CNKSR2),present in both the postsynaptic density and cytoplasm of neurons,is a scaffolding protein with several protein-binding *** of the CNKSR2 gene have been implicated in neurodevelopmental disorders,particularly intellectual disability,although the precise mechanism involved has not yet been fully *** has demonstrated that CNKSR2 plays a role in facilitating the localization of postsynaptic density protein complexes to the membrane,thereby influencing synaptic signaling and the morphogenesis of dendritic ***,the function of CNKSR2 in the cytoplasm remains to be *** this study,we used immunoprecipitation and high-resolution liquid chromatography-mass spectrometry to identify the interactors of *** a combination of bioinformatic analysis and cytological experiments,we found that the CNKSR2 interactors were significantly enriched in the proteome of the *** also showed that CNKSR2 interacted with the microtubule protein DYNC1H1 and with the centrosome marker *** colocalization analysis confirmed the centrosomal localization of *** we downregulated CNKSR2 expression in mouse neuroblastoma cells(Neuro 2A),we observed significant changes in the expression of numerous centrosomal *** manipulation also affected centrosome-related functions,including cell size and shape,cell proliferation,and ***,we found that CNKSR2 interactors were highly enriched in de novo variants associated with intellectual disability and autism spectrum *** findings establish a connection between CNKSR2 and the centrosome,and offer new insights into the underlying mechanisms of neurodevelopmental disorders.

关键词： autism spectrum disorder centrosome CNKSR2 intellectual disability interactome mass spectrometry microtubule neurodevelopmental disease protein complexes protein-protein interactions

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Twinning behaviors of Mg-Sn alloy with basal or prismatic Mg_(2)Sn

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Transactions of Nonferrous Metals Society of China 2024年第9期34卷 2800-2813页

作者： Rui-hao FU Yang-jie WAN Xun-fei XIONG dong-di yin Man-ping LIU Bin JIANG Zi-rong ZHOU Yu-yang GAO ying ZENG National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing 400044China Key Laboratory of Advanced Technologies of Materials Ministry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China School of Materials Science and Engineering Jiangsu UniversityZhenjiang 212013China Institute of Science and Technology Innovation Dongguan University of TechnologyGuangdong 523007China

The Mg-Sn alloys,with basal or prismatic Mg_(2)Sn laths,were employed to reveal the effect of precipitate orientation on twinning behavior *** Mg-5wt.%Sn alloys with basal or prismatic Mg_(2)Sn were compressed to study the twinning ***,an Orowan strengthening model was developed to quantitatively investigate the critical resolved shear stress(CRSS)increment of precipitates on *** results revealed that the prismatic precipitates hindered the transfer and growth of tensile twins more effectively compared with the basal *** decreased proportion of tensile twins containing prismatic Mg_(2)Sn might be attributed to a larger CRSS increment for tensile twins compared with that for basal *** obvious decreased twinning transfer in the alloy with prismatic Mg_(2)Sn could be due to its higher geometrically necessary dislocation and enhanced CRSS of tensile ***,the prismatic precipitates have a better hindering effect on tensile twins during compression.

关键词： Mg−Sn alloy orientation regulation twinning behavior Mg_(2)Sn lath Orowan strengthening

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discovery of a new family member of arsenic–vanadium polyoxometalates with high catalytic performance for one-pot coupling of CO2, epoxides and amines

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Tungsten 2025年第1期7卷 80-87页

作者： Fang-Qian Wang yin Zhang Wei-Wei Wang Mei-Qian Fu Hong-Bing Mo Wei-dong Yu Chao Liu Jun Yan College of Chemistry and Chemical Engineering Central South University Junior Education Department Changsha Normal University School of Science Hunan University of Technology and Business

Arsenic-vanadium polyoxometalates（POMs） represent a family of tremendous potential catalysts owing to their peculiar physical and chemical *** in CO2conversion,using POMs to catalyze the conversion of CO2and epoxide into chemical intermediates is the research ***,A new family number of arsenic-vanadium POMs,[N（CH3）4]4[As8V12O38（H2O）]·2H2O({As8V12O38}),was reported and characterized by single-crystal X-ray diffraction,fourier transform infrared spectroscopy,X-ray photoelectron spectroscopy,*** from other allotropicity,{As8V12O38}shows a different structure pattern with an I-43d *** obtained {As8V12O38} was employed as a catalyst for the *** initial catalytic reaction confirmed that {As8V12O38} can catalyze the formation of epoxy carbonate by using 1.01 kPa CO2and epoxide at 70℃.Furtherly,when added amine in the catalytic system,oxazolidinone could be obtained by high yields,which provides an efficient way to convert CO2into profitable ***,a possible catalytic reaction mechanism was proposed by using different characterization analyses.{As8V12O38} first catalyzes the epoxide and CO2to form an epoxy carbonate and then catalyzes epoxy carbonate and benzylamine into oxazolidinone.

关键词： Arsenic CO2 conversion Oxazolidinone Polyoxometalates Vanadium

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一种新的差压式流量计标定方法

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化工自动化及仪表 2010年第8期37卷 66-68页

作者：王博董继先陆琦董引娣陕西科技大学机电工程学院西安710021 陕西科技大学资源与环境学院西安710021 陕西科技大学附属中学陕西咸阳712081

针对目前差压式流量计标定方法计算公式复杂,实流测量误差较大,为提高精度仍需实测校验的问题,经过对标定方法的研究,提出了广义流出系数的概念,根据流量和差压开方的比例关系,提出的新方法标定时无需经过流量公式计算,仅需一次实流校... 详细信息

针对目前差压式流量计标定方法计算公式复杂,实流测量误差较大,为提高精度仍需实测校验的问题,经过对标定方法的研究,提出了广义流出系数的概念,根据流量和差压开方的比例关系,提出的新方法标定时无需经过流量公式计算,仅需一次实流校验即可标定流量计。该方法标定精度比传统法高出3~5倍,简化了标定方法,提高了测量精度。

关键词：差压式流量计标定流出系数广义流出系数标定

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Mg-10Gd-3Y-0.5Zr合金在压缩变形中的滑移系激活规律和塑性变形不均匀性

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Transactions of Nonferrous Metals Society of China 2023年第1期33卷 79-94页

作者：江志伟尹冬弟万有富倪然周浩郑江王渠东西南交通大学材料科学与工程学院材料先进技术教育部重点实验室成都610031 南京理工大学材料科学与工程学院纳米异构材料中心南京210094 重庆大学材料科学与工程学院教育部轻合金材料国际合作联合实验室沈阳材料科学国家研究中心重庆400044 上海交通大学材料科学与工程学院轻合金精密成型国家工程研究中心上海200240

为了定量和统计地了解高性能铸造Mg-10Gd-3Y-0.5Zr(质量分数,%,GW103)合金在室温单轴压缩变形中滑移系的激活规律和塑性变形不均匀性,对时效状态的该合金进行详细的滑移迹线分析和基于取向差的电子背散射衍射(EBSD)分析。在2%塑性应变后... 详细信息

为了定量和统计地了解高性能铸造Mg-10Gd-3Y-0.5Zr(质量分数,%,GW103)合金在室温单轴压缩变形中滑移系的激活规律和塑性变形不均匀性,对时效状态的该合金进行详细的滑移迹线分析和基于取向差的电子背散射衍射(EBSD)分析。在2%塑性应变后,根据鉴别的滑移迹线的相对比例,激活的滑移模式首先为基面滑移(73.3%),其次是柱面滑移(15.8%),然后是二级角锥面滑移(6.9%),最后是一级角锥面滑移(4%)。尽管大多数激活的滑移系表现出较大的施密特因子(m)值(>0.3),但值得注意的是,一些硬取向(m<0.1)的滑移系也被激活。对于大多数表现出极大几何必需位错(GND)密度的晶界,至少满足以下条件之一:晶界取向差角(GBMA)较大;相邻晶粒间特定滑移模式m_(max)之差较大。晶粒的塑性变形不均匀性(GND密度的大小/分布)与是否能观察到滑移迹线无关。晶内取向分布(GOS)和/或平均GND密度与m_(max)(对于特定滑移模式)没有明显的相关性。

关键词：稀土镁合金滑移系激活规律滑移迹线分析塑性变形不均匀性几何必需位错密度

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轧制纯Mg板材压缩变形机制的统计研究

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Transactions of Nonferrous Metals Society of China 2023年第10期33卷 2970-2985页

作者：尹冬弟陈波柴艳琴万有富周浩郑江王渠东曾迎西南交通大学材料科学与工程学院材料先进技术教育部重点实验室成都610031 南京理工大学材料科学与工程学院纳米异构材料中心南京210094 重庆大学沈阳材料科学国家研究中心轻金属材料研究部材料科学与工程学院教育部轻合金材料国际合作联合实验室重庆400044 上海交通大学材料科学与工程学院轻合金精密成型国家工程研究中心上海200240

基于EBSD和滑移迹线分析,在晶粒尺度上对轧制纯镁板材室温压缩过程中的滑移/孪生激活规律以及他们之间的交互作用进行统计研究(~400个晶粒)。10%变形后的结果表明,基面滑移(89%)是主要的滑移模式,所有鉴别出来的363个孪晶为拉伸孪晶。... 详细信息

基于EBSD和滑移迹线分析,在晶粒尺度上对轧制纯镁板材室温压缩过程中的滑移/孪生激活规律以及他们之间的交互作用进行统计研究(~400个晶粒)。10%变形后的结果表明,基面滑移(89%)是主要的滑移模式,所有鉴别出来的363个孪晶为拉伸孪晶。上凹形的应力-应变曲线表明变形由孪生主导,高的孪生面积分数(41%)进一步验证上述结论。大多数孪晶变体(79%)遵循施密特定律,孪晶转移与Luster-Morris参数(m’)并没有很好的相关性,然而大多数孪晶转移(82%)表现出较大的归一化施密特因子(m)和m’值。在孪晶内观察到滑移系的激活且符合施密特定律。此外,还观察到滑移迹线穿过孪晶界的现象。对m统计分析表明,孪生激活与柱面滑移密切相关。

关键词：镁 EBSD 滑移迹线分析孪晶变体选择滑移-孪生交互作用

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Low-temperature chlorination roasting technology for the simultaneous recovery of valuable metals from spent LiCoO_(2)cathode material

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 80-91页

作者： Junjie Shi Changle Hou Jingjing dong dong Chen Jianzhong Li Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education) Northeastern UniversityShenyang 110819China School of Metallurgy Northeastern UniversityShenyang 110819China

With the continuous increase in the disposal volume of spent lithium-ion batteries(LIBs),properly recycling spent LIBs has become essential for the advancement of the circular *** study presents a systematic analysis of the chlorination roasting kinetics and proposes a new two-step chlorination roasting process that integrates thermodynamics for the recycling of LIB cathode *** activation energy for the chloride reaction was 88.41 kJ/mol according to thermogravimetric analysis–derivative thermogravimetry data obtained by using model-free,model-fitting,and Z(α)function(αis conversion rate).Results indicated that the reaction was dominated by the first-order(F1)model when the conversion rate was less than or equal to 0.5 and shifted to the second-order(F2)model when the conversion rate exceeded *** conditions were determined by thoroughly investigating the effects of roasting temperature,roasting time,and the mass ratio of NH_(4)Cl to LiCoO_(2).Under the optimal conditions,namely 400℃,20 min,and NH_(4)Cl/LiCoO_(2)mass ratio of 3:1,the leaching efficiency of Li and Co reached 99.43% and 99.05%,*** of the roasted products revealed that valuable metals in LiCoO_(2)transformed into CoCl_(2) and ***,the reaction mechanism was elucidated,providing insights for the establishment of a novel low-temperature chlorination roasting technology based on a crystal structure *** technology can guide the development of LIB recycling processes with low energy consumption,low secondary pollution,high recovery efficiency,and high added value.

关键词： spent lithium-ion battery thermodynamics chlorination roasting kinetics circular economy

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