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Journal of Magnesium and Alloys 2024年第1期12卷 35-58页

作者： Yuntao Xiao xinfang zhang Can Wang Jinsong Rao Yuxin zhang College of Materials Science and Engineering Chongqing UniversityChongqing 400044China

The application of Mg-based electrochemical energy storage materials in high performance supercapacitors is an essential step to promote the exploitation and utilization of magnesium resources in the field of energy ***,the inherent chemical properties of magnesium lead to poor cycling stability and electrochemical reactivity,which seriously limit the application of Mg-based materials in ***,in this review,more than 70 research papers published in recent 10 years were collected and *** representative research works were selected,and the results of various regulative strategies to improve the electrochemical performance of Mg-based materials were *** effects of various regulative strategies(such as constructing nanostructures,synthesizing composites,defect engineering,and binder-free synthesis,etc.)on the electrochemical performance and their mechanism are demonstrated using spinelstructured MgX_(2)O_(4) and layered structured Mg-X-LDHs as *** addition,the application of magnesium oxide and magnesium hydroxide in electrode materials,MXene's solid spacers and hard templates are ***,the challenges and outlooks of Mg-based electrochemical energy storage materials in high performance supercapacitors are also discussed.

关键词： Supercapacitor Electrochemical energy storage Mg-based materials

Migration Behavior of Impurity Iron in Silicon Melt Under Pulsed Electric Current

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Acta Metallurgica Sinica(English Letters) 2024年第5期37卷 889-903页

作者： Mengcheng Zhou Yaxiong Dai Changhao Liu Shengli Ding xinfang zhang School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China Guangdong Zhongnan Iron&Steel Co. Ltd.Guangdong 512123China

The impurity iron in silicon material will seriously affect the photoelectric conversion efficiency of silicon solar ***,the traditional silicon purification method has the disadvantages of long cycle,high energy consumption and serious *** this study,an efficient and green pulsed electric current purification technology is *** electromigration effect of iron elements,the current density gradient driving of iron phase,and the gravity of iron phase all affect the migration behavior of iron phase in silicon melt under pulsed electric *** of the depth of electrode insertion into the silicon melt,the solubility of iron in silicon decreases under the pulsed electric current,which helps to form the iron *** the same time,the iron phase tends to sink toward the bottom under the influence of *** the electrode is shallowly inserted,a non-uniform electric field is formed in the silicon melt,and the iron phase is mainly driven by the current density gradient to accelerate sink toward the *** the electrode is fully inserted,an approximately uniform electric field is formed in the silicon melt,and iron elements are preferentially migrated to the cathode by electromigration,forming iron phase sinking at the *** study of impurity iron migration behavior in silicon melt under pulsed electric current provides a new approach for the purification of polycrystalline silicon.

关键词： Metallurgical silicon Pulsed electric current Iron-rich phase Current density gradient Electromigration

When quantum dots meet blue phase liquid crystal elastomers:visualized full-color and mechanically-switchable circularly polarized luminescence

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Light(Science & Applications) 2024年第6期13卷 1210-1220页

作者： Shan Li Yuqi Tang Qingyan Fan Ziyuan Li xinfang zhang Jingxia Wang Jinbao Guo Quan Li Key Laboratory of Carbon Fibers and Functional Polymers Ministry of Educationand College of Materials Science and EngineeringBeijing University of Chemical Technology100029BeijingChina Institute of Advanced Materials and School of Chemistry and Chemical Engineering Southeast UniversityNanjing211189China Materials Science Graduate Program Kent State UniversityKentOH44242USA CAS Key Laboratory of Bio-Inspired Materials and Interfacial Sciences Technical Institute of Physics and ChemistryChinese Academy of Sciences100190BeijingChina

Polymer-based circularly polarized luminescence(CPL)materials with the advantage of diversified structure,easy fabrication,high thermal stability,and tunable properties have garnered considerable ***,adequate and precise tuning over CPL in polymer-based materials remains challenging due to the difficulty in regulating chiral ***,visualized full-color CPL is achieved by doping red,green,and blue quantum dots(QDs)into reconfigurable blue phase liquid crystal elastomers(BPLCEs).In contrast to the CPL signal observed in cholesteric liquid crystal elastomers(CLCEs),the chiral 3D cubic superstructure of BPLCEs induces an opposite CPL ***,this effect is entirely independent of photonic bandgaps(PBGs)and results in a high glum value,even without matching between PBGs and the emission bands of ***,the lattice structure of the BPLCEs can be reversibly switched via mechanical stretching force,inducing on-off switching of the CPL signals,and these variations can be further fixed using dynamic disulfide bonds in the ***,the smart polymer-based CPL systems using the BPLCEs for anti-counterfeiting and information encryption have been demonstrated,suggesting the great potential of the BPLCEs-based CPL active materials.

关键词： circular quantum crystal

The chemical environment and structural ordering in liquid Mg-Y-Zn system:An ab-initio molecular dynamics investigation of melt for the formation mechanism of LPSO structure

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Journal of Magnesium and Alloys 2024年第2期12卷 815-824页

作者： Tangpeng Ma Jin Wang Kaiming Cheng Chengwei Zhan Jixue Zhou Jingyu Qin Guochen Zhao xinfang zhang Shandong Provincial Key Laboratory of High Strength Lightweight Metallic Materials Advanced Materials InstituteQilu University of Technology(Shandong Academy of Sciences)Jinan 250014China Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of EducationShandong UniversityJinan 250061China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China

In an effort to clarify the formation mechanism of LPSO structure in Mg-Y-Zn alloy,the chemical environment and structural ordering in liquid Mg-rich Mg-Y-Zn system are investigated with the aid of ab-initio molecular dynamics *** liquid Mg-rich Mg-Y alloys,the strong Mg-Y interaction is determined,which promotes the formation of fivefold symmetric local *** Mg-Zn alloys,the weak Mg-Zn interaction results in the fivefold symmetry weakening in the liquid *** to the coexistence of Y and Zn,the strong attractive interaction is introduced in liquid Mg-Y-Zn ternary alloy,and contributes to the clustering of Mg,Y,Zn launched from *** is more,the distribution of local structures becomes closer to that in pure Mg compared with that in binary Mg-Y and Mg-Zn *** results should relate to the origins of the Y/Zn segregation zone and close-packed stacking mode in LPSO structure,which provides a new insight into the formation mechanism of LPSO structure at atomic level.

关键词： Mg-Y-Zn Chemical environment Structural ordering ab-initio molecular dynamics

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音乐文本批评——约翰·亚当斯的误读分析

音乐艺术（上海音乐学院学报） 2024年第3期 166-181页

作者：章馨方上海音乐学院南京艺术学院音乐学院南京210013

音乐文本批评源于西方文学批评理论中的文本批评,是影响和误读理论在音乐领域运用后产生的一种互文性研究方法。细致梳理现代批评理论发展动向,发掘文本批评的历史定位及其在文学与音乐领域中相应的批评范式;以音乐文本批评为方法论,通... 详细信息

音乐文本批评源于西方文学批评理论中的文本批评,是影响和误读理论在音乐领域运用后产生的一种互文性研究方法。细致梳理现代批评理论发展动向,发掘文本批评的历史定位及其在文学与音乐领域中相应的批评范式;以音乐文本批评为方法论,通过哈罗德·布鲁姆的误读理论,以及凯文·科辛的音乐文本批评路径,阐释美国当代作曲家约翰·亚当斯器乐作品的独特艺术创造力。亚当斯环形链条的写作建立于对历史文本的引用,该写作策略构成对贝多芬和勃拉姆斯的误读。历史文本中的写作要素,又在亚当斯改造简约主义音乐的过程中起到关键性作用,借助传统手段改造后的简约主义音乐具有明确的运动方向性,并具备承载复杂表情的能力,因此构成亚当斯独特的音乐话语。

关键词：音乐文本批评新历史主义误读约翰·亚当斯简约主义音乐

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不同抗螨性板栗差异次生代谢物筛选与分析

南京林业大学学报（自然科学版） 2024年第2期48卷 234-240页

作者：张馨方王广鹏张树航李颖郭燕河北省农林科学院昌黎果树研究所河北昌黎066600

【目的】筛选分析抗螨性不同的板栗(Castanea mollissima)叶片中的差异次生代谢物,为抗螨机理解析与高抗螨板栗品种选育提供参考。【方法】以板栗品种‘燕兴’(‘Yanxing’)和‘丽抗’(‘Likang’)为材料,采用田间调查法进行抗螨性鉴定... 详细信息

【目的】筛选分析抗螨性不同的板栗(Castanea mollissima)叶片中的差异次生代谢物,为抗螨机理解析与高抗螨板栗品种选育提供参考。【方法】以板栗品种‘燕兴’(‘Yanxing’)和‘丽抗’(‘Likang’)为材料,采用田间调查法进行抗螨性鉴定,确定‘燕兴’和‘丽抗’对针叶小爪螨的抗性等级;利用超高效液相色谱和串联质谱(UPLC-MS/MS)进行代谢组学检测,通过差异倍数(fold change)和VIP(variable importance in projection)值相结合的方法筛选差异代谢物,使用R软件ComplexHeatmap包和MetaboAnalystR包分别绘制聚类热图和OPLS-DA得分图;利用KEGG(Kyoto encyclopedia of genes and genomes)数据库对差异代谢物进行注释,并按通路类型分类。【结果】‘丽抗’和‘燕兴’对针叶小爪螨的抗性等级分别为1级(高抗)和7级(感);两品种共检测到704个次生代谢物,筛选出差异代谢物165个,有73个代谢物在‘丽抗’中的含量显著高于‘燕兴’,有92个差异代谢物在‘丽抗’中的含量比‘燕兴’低;差异代谢物种类包括酚酸(56个)、黄酮(60个)、木质素和香豆素(19个)、鞣质(4个)、生物碱(5个)、萜类(16个)和其他类(5个),差异代谢物中黄酮和酚酸类占比较高,分别为36%和34%;仅在‘丽抗’中检测到的代谢物有7个,分别是咖啡酰胆、6′-O-反式肉桂酰-8-表金吉苷酸、落叶松脂素-4′-O-葡萄糖苷、阿尔本酚B、地榆素H11、3-羟基-5甲基苯酚-O-葡萄糖苷和苜蓿素-7-O-葡萄糖醛酸苷等;仅存在于‘燕兴’中的代谢物有15个,包括4-甲基-5-噻唑乙醇、2,4-二羟基苯甲酸、异嗪皮啶、水杨苷、刺梨酸等。‘燕兴’和‘丽抗’中有33个差异代谢物被注释到12条通路上。【结论】感螨品种‘燕兴’和高抗品种‘丽抗’次生代谢谱存在差异,可能与板栗抗螨性相关的次生代谢物有樱黄素、表没食子儿茶素、咖啡酸、阿魏酸、几种木质素以及4-甲基-5-噻唑乙醇;‘燕兴’和‘丽抗’的差异次生代谢物主要注释和富集在黄酮、黄酮醇生物合成及类黄酮生物合成通路。

关键词：板栗针叶小爪螨抗螨性次生代谢物

信息时代下的国家记忆工程:档案工作的科技创新与互联网融合

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办公自动化 2024年第2期29卷 29-32页

作者：张新芳郑州大学第二附属医院郑州450014

信息时代背景下,文章探讨国家记忆工程中档案工作的科技创新与互联网融合。首先分析数据管理、信息共享、信息安全等关键问题。讨论网络安全、隐私保护和专业人才培养的重要性。对未来的趋势和挑战进行预测,认为只有不断创新和适应变化... 详细信息

信息时代背景下,文章探讨国家记忆工程中档案工作的科技创新与互联网融合。首先分析数据管理、信息共享、信息安全等关键问题。讨论网络安全、隐私保护和专业人才培养的重要性。对未来的趋势和挑战进行预测,认为只有不断创新和适应变化,才能推动国家记忆工程的发展。

关键词：信息时代国家记忆工程档案工作科技创新互联网融合

Uniform texture in Al-Zn-Mg alloys using a coupled force field of electron wind and external load

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Journal of Materials Science & Technology 2020年第1期36卷 149-159页

作者： Hexiong zhang xinfang zhang State Key Laboratory of Advanced Metallurgy School of Metallurgical and Ecological EngineeringUniversity of Science and Technology BeijingBeijing 100083China

Cylindrical Al-Zn-Mg alloys were processed by electroplastic compression with forced air *** to a simple compression process,an unequal intensity of {110} was obtained,and other textures were eliminated by electroplastic compression,that is,electroplastic compression can promote a uniform *** various textures formed in different regions along the radial direction under a simple compression process were illuminated by analyzing the relationship between the crystal rotation and stress ***,the interaction between the electrons and dislocations was studied in electroplastic *** electrons enhanced {110} by promoting slipping of the dislocations when the Burgers vectors of the dislocations were parallel to the drift direction of the ***,the electrons also inhibited crystal rotation by pinning the dislocations with the Burgers vectors perpendicular to the drift direction of the ***,textures other than {110} have difficulty forming under electroplastic *** effect of the current energy on the texture(enhancement or attenuation) was in accordance with the law of *** results provided reasonable explanations for the test phenomena.

关键词： Electroplastic Compression Electron wind Coupled force field Texture

Residual Stress Removal Under Pulsed Electric Current

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Acta Metallurgica Sinica(English Letters) 2020年第2期33卷 281-289页

作者： Siqi Xiang xinfang zhang State Key Laboratory of Advanced Metallurgy School of Metallurgical and Ecological EngineeringUniversity of Science and Technology BeijingBeijing 100083China

The effect of a pulsed electric current on the residual stress evolution of metal materials has been *** was found that the surface and internal residual stresses in the as-quenched samples were reduced dramatically by electropulsing.A large number of experimental data show that the residual stress reduction is proportional to the initial residual stress and related to the material properties and electropulsing *** the combined actions of drift electrons,Joule heating,and residual stress,the dislocation mobility was enhanced,resulting in plastic strain and the decrease in residual *** electrons played a unique role in the electropulsing treatment,acting as an additional force pushing dislocations *** dislocations ultimately accumulated at a grain boundary,forming a parallel ***,the phenomenological equation of the residual stress evolution under electropulsing was derived from the experimental data.

关键词： Electroplastic Residual stress Dislocation movement Phenomenological equation

Optimization of <001> grain gene based on texture hereditary behavior of magnetic materials

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Journal of Materials Science & Technology 2020年第3期38卷 1-6页

作者： Mengcheng Zhou xinfang zhang State Key Laboratory of Advanced Metallurgy School of Metallurgical and Ecological EngineeringUniversity of Science and Technology BeijingBeijing 100083China

Since the intrinsic properties of materials are determined by the properties and arrangement of atoms,including crystal structure and defects,there is a strong analogy between material genes and biological ***,improving the performance of materials by optimizing their genes is a new idea of material ***orientation texture is closely related to the magnetic properties of soft magnetic *** designed and experimentally demonstrated a gene optimization in an important soft magnetic material by electric *** reduction of grain boundary hopping energy barrier caused by the distribution of electromagnetic field promotedorientation grain nucleation and growth,which directly improved the initialorientation grain gene,and the inheritance oforientation texture was used to control the formation of recrystallization ***,it is possible to utilize the gene optimization technique in many materials upgrading such as metal materials and biological materials according to the differences in electromagnetic properties of microstructures.

关键词： Orientation grain Texture Ultra-thin electrical steel Gene EBSD