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Sports Medicine and Health Science 2021年第3期3卷 134-137页

作者： Manting Cao xia Li The third affiliated hospital Zhejiang Chinese Medical UniversityHangzhouChina

Neglecting the use of the affected limb in stroke patients can result in learned *** constraint-induced movement therapy(mCIMT)is a form of rehabilitation therapy that limits the less paretic side,and through repeated and concentrated training improve the upper limb function of the paretic *** aim of this paper is to develop a critical systematic review on the research evidence evaluating the effectiveness of applying mCIMT in the recovery of upper limb function in stroke *** outcome of this evaluation support that mCIMT significantly improves the upper limb function of stroke ***,group mCIMT modality and TR(trunk restraint)+mCIMT modality provide greater benefits than mCIMT alone.

关键词： mCIMT Stroke Upper limb function

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复合角对涡轮叶片旋转气膜冷却效果的影响

航空动力学报 2010年第2期25卷 308-313页

作者：李国庆邓宏武侠晖霞北京航空航天大学能源与动力工程学院航空发动机气动热力科技重点实验室北京100191

对某小型燃气轮机设计工况下的涡轮动叶,采用标准k-ε湍流模型,数值模拟了复合角气膜孔对冷却效果的影响.主流雷诺数为670 000,比较了吹风比分别为0.5,1.0,1.5和2.0时,采用60°,30,°0°,-30°和-60°复合角气膜孔的气膜流动情况和冷却... 详细信息

对某小型燃气轮机设计工况下的涡轮动叶,采用标准k-ε湍流模型,数值模拟了复合角气膜孔对冷却效果的影响.主流雷诺数为670 000,比较了吹风比分别为0.5,1.0,1.5和2.0时,采用60°,30,°0°,-30°和-60°复合角气膜孔的气膜流动情况和冷却效果.结果表明:在旋转状态下,压力面上复合角可以有效地提高气膜冷却效果,受哥氏力的影响,朝向低半径的复合角的气膜冷却效果要好于朝向高半径;吸力面上复合角对气膜冷却效果的影响不大.

关键词：复合角气膜冷却旋转吹风比涡轮

Review on modification routes for SnO_(x)-based anodes for Li storage:morphological structure tuning and phase structure design

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Rare Metals 2023年第9期42卷 2840-2867页

作者： Yu Zheng Xue-xia Lan Xing-Yu Xiong Bin Yuan Ren-Zong Hu School of Materials Science and Engineering Guangdong Provincial Key Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhou510640China

Fascinating with high specific capacity and moderate lithiation potential,SnO_(x)-based materials have been intensively investigated as one of the most promising anodes for lithium-ion ***,due to poor cycling stability,sluggish reaction kinetics,and limited electrochemical reaction reversibility,the development of SnO_(x)-based anodes has been *** the current preparation and modification routes for SnO_(x)-based anodes lack direct and specific ***,modification routes for SnO_(x)-based anodes have been ***,to provide more direct instructions,the tuning routes of morphological structure for SnO_(x)-based electrodes(including slurry-based and self-supported)have been thoroughly discussed from the preparation ***,according to the properties of SnO_(x)-based anodes,the phase structure design ideas have also been properly classified and organized for addressing chemical reaction kinetics or thermodynamic ***,for future-oriented studies,new insights into the development and commercialization prospects of SnO_(x)-based anodes are also *** review,with comprehensive information on SnO_(x)-based anodes,aims to bring more specific guidance and valuable inspiration for peer researchers who are promoting the application of SnO_(x)-based materials for energy conversion and storage devices.

关键词： Lithium-ion battery(LIB) SnO_(x)-based anodes Reaction kinetics Morphological structure tuning Phase structure design

Bimetallic Fe-Mo sulfide/carbon nanocomposites derived from phosphomolybdic acid encapsulated MOF for efficient hydrogen generation

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Journal of Materials Science & Technology 2021年第25期84卷 76-85页

作者： Zheng Huang Zhuxian Yang Mian Zahid Hussain Quanli Jia Yanqiu Zhu Yongde xia College of Engineering Mathematics and Physical SciencesUniversity of ExeterExeter EX44QFUK Hennan Key Laboratory of High Temperature Functional Ceramics Zhengzhou UniversityZhengzhou450052China

To tackle the energy crisis and achieve more sustainable development,hydrogen as a clean and renewable energy resource has attracted great *** for cheap but efficient catalysts for hydrogen production from water splitting is urgently *** this report,bimetallic Fe-Mo sulfide/carbon nanocomposites that derived from a polyoxometalate phosphomolybdic acid encapsulated metal-organic framework MIL-100(PMA@MIL-100)have been generated and their applications in electrocatalytic hydrogen generation were *** PMA@MIL-100 precursor is formed via a simple one-pot hydrothermal synthesis method and the bimetallic Fe-Mo sulfide/carbon nanocomposites were obtained by chemical vapor sulfurization of PMA@MIL-100 at high *** nanocomposite samples were fully characterized by a series of techniques including X-ray diffraction,Fourier-transform infrared analysis,thermogravimetric analysis,N2 gas sorption,scanning electron microscopy,transmission electron microscopy,X-ray photoelectron spectroscopy,and were further investigated as electrocatalysts for hydrogen production from water *** hydrogen production activity of the best performed bimetallic Fe-Mo sulfide/carbon nanocomposite exhibits an overpotential of-0.321 V at 10 m A cm^(-2)and a Tafel slope of 62 m V dec^(-1)with a 53%reduction in overpotential compared to Mo-free counterpart *** dramatic improvement in catalytic performance of the Fe-Mo sulfide/carbon composite is attributed to the homogeneous distribution of the nanosized iron sulfide,MoS_(2)particles,and the formation of Fe-Mo-S phases in the S-doped porous carbon *** work has demonstrated a potential approach to fabricate complex heterogeneous catalytic materials for different applications.

关键词： MOF Nanocomposite Encapsulation Metal sulfide Hydrogen generation

Molecular engineering binuclear copper catalysts for selective CO_(2) reduction to C_(2) products

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Journal of Energy Chemistry 2024年第6期93卷 166-173,I0005页

作者： Qi Zhao Kai Lei Bao Yu xia Rachel Crespo-Otero Devis Di Tommaso Department of Chemistry School of Physical and Chemical SciencesQueen Mary University of LondonLondonE14NSUK Key Laboratory of Material Chemistry for Energy Conversion and Storage(Ministry of Education) Hubei Key Laboratory of Material Chemistry and Service FailureState Key Laboratory of Materials Processing and Die&Mould TechnologySchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology(HUST)Wuhan 430074HubeiChina Department of Chemistry University College LondonLondonWC1H 0AJUK Digital Environment Research Institute Queen Mary University of LondonEmpire HouseLondon E11HHUK

Molecular copper catalysts serve as exemplary models for correlating the structure-reaction-mechanism relationship in the electrochemical CO_(2) reduction(eCO_(2)R),owing to their adaptable environments surrounding the copper metal *** investigation,employing density functional theory calculations,focuses on a novel family of binuclear Cu molecular *** modulation of their coordination configuration through the introduction of organic groups aims to assess their efficacy in converting CO_(2) to C_(2)*** findings highlight the crucial role of chemical valence state in shaping the characteristics of binuclear Cu catalysts,consequently influencing the eCO_(2)R behaviour,Notably,the Cu(Ⅱ)Cu(Ⅱ)macrocycle catalyst exhibits enhanced suppression of the hydrogen evolution reaction(HER),facilitating proton trans fer and the eCO_(2)R *** rthermore,we explo re the impact of diverse electro n-withdrawing and electron-donating groups coordinated to the macrocycle(R=-F,-H,and-OCH_3)on the electron distribution in the molecular *** placement of-OCH_3 groups in the macrocycles leads to a favourable oxidation state of the Cu centres and subsequent C-C coupling to form C_(2) *** research provides fundamental insights into the design and optimization of binuclear Cu molecular catalysts for the electrochemical conversion of CO_(2) to value-added C_(2) products.

关键词： Molecular catalyst design Selective CO_(2)reduction C_(2)products Density functional theory calculations

Studies on thermal stabilities of coordination compounds by gas chromatography ⅩⅩ.The solid state reaction of sodium nitrate and iron(Ⅲ)oxalate in hydrogen atmosphere

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Acta Chimica Sinica(English Edition) 1988年第2期6卷 109-115页

作者： YUAN Jin-Hua xia hong-Ying XIN Xin-Quan DAI An-Bang Coordination Chemistry Research Institute,Nanjing University,NanjingZHANG Yu-Chang Department of Physics,Nanjing University,Nanjing Coordination Chemistry Research Institute Nanjing University Nanjing Department of Physics Nanjing University Nanjing

The solid state reaction of sodium nitrate and iron （Ⅲ） oxalate in hydrogen atmos-phere was investigated by gas chromatography,Mssbauer spectroscopy and X-ray *** show that there is no reaction below 240 ℃ between them while iron （Ⅲ） oxalate decomposesitself into α-FeC2O4 and gives off CO2 and H2O peaks at 180℃.The reaction takes place at 260—300℃when sodium nitrate oxidizes α-FeC2O4 to Fe （Ⅲ） compound and releases large amount of CO2and a little NO and *** mole proportions and particle sizes of reactants have no obviouseffect on solid state *** of the catalyzing effect of Fe （Ⅲ） compound,sodium nitrateand its reduction product,sodium nitrite decomposes at 380—500℃ and Fe （Ⅲ） compound is trans-formed into γ-Fe2O3 at 460℃.

关键词： rate Studies on thermal stabilities of coordination compounds by gas chromatography

从精准医学的视角看中医药防治慢性胃炎“炎癌转化”

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北京中医药大学学报 2023年第3期46卷 315-320页

作者：丁霞李园沈洪北京中医药大学中医学院北京100029 北京中医药大学国家中医体质与治未病研究院南京中医药大学附属医院

精准医学是依据患者内在生物学信息、临床症状和体征,对患者实施“量身定制”的健康医疗和临床决策,在胃癌的生物学标志物分析、鉴定和靶向治疗,以及外科手术的微创化和精准化发展方面取得了重大突破。中医学是以高度“个体化医疗”为... 详细信息

精准医学是依据患者内在生物学信息、临床症状和体征,对患者实施“量身定制”的健康医疗和临床决策,在胃癌的生物学标志物分析、鉴定和靶向治疗,以及外科手术的微创化和精准化发展方面取得了重大突破。中医学是以高度“个体化医疗”为特点的医学,关注体质、环境、生活方式等多种因素对个体的影响。慢性胃炎“炎癌转化”是横跨消化和肿瘤两个学科,涉及多病理阶段、动态演变的复杂过程。中医学以“治未病”思想为指导,尤其注重对慢性胃炎“炎癌转化”形成全过程、全因素、全图景的精准防治策略,旨在针对不同病理阶段、不同证候特点、不同人群特征进行分阶段的精准管理,在慢性胃炎“炎癌转化”的每一个病理阶段形成主动干预的“理、法、方、药”,从而截断其向下一阶段的进展路径,实现降低胃癌发病率的目标。从精准医学视角,探讨中医药对于慢性胃炎“炎癌转化”精准认识、精准预防、精准辨证、精准施治的全过程管理优势,以期为延缓、阻断乃至逆转慢性胃炎“炎癌转化”进程提供参考和借鉴。

关键词：精准医学慢性胃炎胃癌炎癌转化中医药

MXene-based hybrid materials for electrochemical and photoelectrochemical H_(2) generation

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Journal of Energy Chemistry 2024年第6期93卷 111-125,I0004页

作者： Jun Young Kim Seung Hun Roh Chengkai xia Uk Sim Jung Kyu Kim School of Material Science and Engineering North University of ChinaTaiyuan 030051China School of Chemical Engineering Sungkyunkwan University(SKKU)2066Seobu-roJangan-guSuwon 16419Republic of Korea Hydrogen Energy Technology Laboratory Korea Institute of Energy Technology(KENTECH)NajuJeollanamdo 58330Republic of Korea SKKU Advanced Institute of Nano Technology(SAINT) Sungkyunkwan University(SKKU)2066Seobu-roJangan-guSuwon 16419Republic of Korea

The conversion of solar energy to produce clean hydrogen fuel through water splitting is an emerging strategy for efficiently storing solar energy in the form of solar *** aligns with the increasing global demand for the development of an ideal energy alternative to fossil fuels that does not emit greenhouse ***(EC) and photoelectrochemical(PEC) water splitting technologies have garnered significant attention worldwide for advanced hydrogen solar fuel production in recent *** achieve sustainable green H_(2) production,it is essential to create efficient catalyst materials that are low-cost and can replace expensive noble metal-based *** characteristics make them an ideal catalyst material for the ***-dimensional MXenes with M_(n+1)X_(n) structure have been identified as a promising option for EC and PEC water splitting due to their superior hydrophilicity,metal-like conductivity,large surface area,and adjustable surface ***,we present a summary of recent advancements in the synthesis and performance enhancement methods for MXene hybrid materials in hydrogen production through EC and PEC water ***,we examine the challenges and insights associated with the rational design of MXene-based hybrid materials to facilitate efficient water splitting for sustainable solar fuel production.

关键词： MXene Hybrid materials EC PEC HER OER Water splitting

SiC颗粒弥散强韧化Si_3N_4陶瓷刀具材料

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稀有金属材料与工程 1999年第3期28卷 182-185页

作者：贾翃何京彦夏志华北京有色金属研究总院

对ＳｉＣ颗粒弥散强韧化氮化硅陶瓷刀具材料的组成、结构及性能进行了研究．结果表明，ＳｉＣ颗粒的加入使材料的强度、韧性及硬度均比纯Ｓｉ３Ｎ４陶瓷有显著提高．通过对其显微结构的分析，发现ＳｉＣ颗粒的加入使材料的显微结构明显... 详细信息

对ＳｉＣ颗粒弥散强韧化氮化硅陶瓷刀具材料的组成、结构及性能进行了研究．结果表明，ＳｉＣ颗粒的加入使材料的强度、韧性及硬度均比纯Ｓｉ３Ｎ４陶瓷有显著提高．通过对其显微结构的分析，发现ＳｉＣ颗粒的加入使材料的显微结构明显改善，能有效地阻止βＳｉ３Ｎ４晶粒的异常生长，有利于形成均匀细小的组织结构．同时，对ＳｉＣ颗粒在Ｓｉ３Ｎ４基体中的增韧机理进行了探讨．

关键词：氮化硅碳化硅颗粒弥散强韧化刀具

Analysis of an Applied Core Collection of Adzuki Bean Germplasm by Using SSR Markers

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Journal of Integrative Agriculture 2012年第10期11卷 1601-1609页

作者： WANG Li-xia CHENG Xu-zhen WANG Su-hua TIAN Jing Institute of Crop Sciences Chinese Academy of Agricultural Sciences Institute of Cereal and Oil Crops Hebei Academy of Agricutural and Forestry Sciences

Genetic diversity of 158 accessions of an applied core collection of adzuki bean （Vigna angularis） and 18 wild genotypes were assessed by using 85 microsatellite markers. With an average of 5.81 alleles per locus, 493 alleles were detected, and their distribution frequencies lower than 5% accounted for 73.02% of the total number. The distributions of alleles between the cultivated and the wild adzuki bean germplasm are different, with a higher allelic diversity in the wild germplasm than that of the cultivated ones. An obvious genetic differentiation was also observed between the wild and the cultivated adzuki beans, and SSR markers may be useful in study identification and classification of them. Among cultivated adzuki bean, the genetic similarity coefficient varied from 0.366 to 0.939. Genetic structure analysis can clearly separate the wild genotypes from the cultivated adzuki bean, and also can divide the cultivated ones into different populations, as these populations are closely agreeable with the ecological regions where they originally grow. The results of this study will be useful in arranging local breeding programs, especially in the aspect of parental combinations or identification of progenies. These SSR markers can also provide important information to explain the genetic relationship between the cultivated and wild adzuki beans, and to accelerate the wild gene resources in broadening the gene pool in breeding program.

关键词： adzuki bean applied core collection genetic variations SSR marker wild genotype