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Mechanical reliable,NIR light-induced rapid self-healing hydrogel electrolyte towards flexible zinc-ion hybrid supercapacitors with low-temperature adaptability and long service life

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Journal of Energy Chemistry 2024年第5期92卷 63-73页

作者： Tengjia Gao na Li Yang Yang Jing Li Peng Ji Yunlong zhou Jianxiong Xu School of Materials and Advanced Manufacturing Hunan Key Laboratory of Electrochemical Green Metallurgy TechnologyHunan University of TechnologyZhuzhou 412007HunanChina School of Life Sciences and Chemistry Hunan Key Laboratory of Biomedical Nanomaterials and DevicesHunan University of TechnologyZhuzhou 412007HunanChina

Hydrogel electrolytes hold great potential in flexible zinc ion supercapacitors(ZICs)due to their high conductivity,good safety,and ***,freezing of electrolytes at low temperature(subzero)leads to drastic reduction in ionic conductivity and mechanical properties that deteriorates the performance of flexible ***,the mechanical fracture during arbitrary deformations significantly prunes out the lifespan of the flexible ***,a Zn^(2+)and Li^(+)co-doped,polypyrrole-dopamine decorated Sb_(2)S_(3)incorporated,and polyvinyl alcohol/poly(N-(2-hydroxyethyl)acrylamide)double-network hydrogel electrolyte is constructed with favorable mechanical reliability,anti-freezing,and self-healing *** addition,it delivers ultra-high ionic conductivity of 8.6 and 3.7 S m^(-1)at 20 and−30°C,respectively,and displays excellent mechanical properties to withstand tensile stress of 1.85 MPa with tensile elongation of 760%,together with fracture energy of 5.14 MJ m^(-3).Notably,the fractured hydrogel electrolyte can recover itself after only 90 s of infrared illumination,while regaining 83%of its tensile strain and almost 100%of its ionic conductivity during−30–60°***,ZICs coupled with this hydrogel electrolyte not only show a wide voltage window(up to 2 V),but also provide high energy density of 230 Wh kg^(-1)at power density of 500 W kg^(-1)with a capacity retention of 86.7%after 20,000 cycles under 20°***,the ZICs are able to retain excellent capacity even under various mechanical deformation at−30°*** contribution will open up new insights into design of advanced wearable flexible electronics with environmental adaptability and long-life span.

关键词： Flexible zinc ion supercapacitor Hydrogel electrolyte Self-healing Anti-freezing

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Assessment of aerobic exercise capacity in obesity,which expression of oxygen uptake is the best?

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Sports Medicine and Health Science 2021年第3期3卷 138-147页

作者： na zhou Department of Cardiology Yunnan BOYA HospitalKunmingYunnanChina Faculty of Motorskills Sciences Free University of BrusselsBrusselsBelgium

Although the impact of obesity on exercise performance is multifactorial,excessive fat mass which can impose an unfavorable burden on cardiac function and working muscle,will affect the aerobic exercise *** loss strategies,such as bariatric surgery can obviously affect both the body composition and aerobic exercise *** oxygen consumption(_VO 2max)is a widely used important indicator of aerobic exercise capacity of an individual and is closely related to body weight,size and *** individual's aerobic exercise capacity may show different results depending on howVO_(2)is *** absoluteVO_(2)and_VO 2max relative to body weight are the most commonly used ***_(2)relative to fat-free mass,lean body mass or skeletal muscle mass are not influenced by adipose *** last two are more useful to precisely distinguish between individuals differing in muscle adaptation to maximum oxygen ***_VO 2max relative to body height is used for studying growth in *** the in-depth study of exercise capacity and body composition in obesity,the relative oxygen uptake has been increasingly reinterpreted.

关键词： Exercise capacity Absolute VO_(2) Relative VO_(2) VO_(2max) Body composition Muscle

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Thermodynamic analysis of metal dusting on iron in CO-H_2-H_2O atmosphere

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Journal of natural Gas Chemistry 2009年第2期18卷 222-224页

作者： na Lei Changyu zhou Guiming Hu Cheng Chen College of Mechanical and Power Engineering Nanjing University of Technology Nanjing 210009 Jiangsu China

This paper provides a calculation method for carbon activity in CO-H2-H2O atmosphere. The thermodynamic parameters （aC）gas （carbon activity in environment） of different compositions at any temperature can be obtained by △G^oT. A theoretical analysis has been conducted into the thermodynamic role of iron and the dependence of possible metal-dusting occurrence on temperature, gas composition and total pressure. In CO-H2-H2O gas mixtures, decreasing the molar fraction of H2O and increasing total pressure expands the temperature region for metal dusting. In CO-H2-H2O gas mixture of different compositions at any temperature and pressure for Fe, depending on relative values of （aC）gas, （aC）Fe3C/Fe and aC= 1, three zones were found to exist.

关键词： metal dusting thermodynamics carbon activity chemical potential of carbon

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Influence of Annealing on the Grain Growth and Thermal Diffusivity of nanostructured YSZ Thermal Barrier Coating

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Journal of Materials Science & Technology 2006年第6期22卷 793-797页

作者： na WANG Chungen zhou Shengkai GONG Huibin XU Department of Materials Science and Engineering Beijing University of Aeronautics and Astronautics Beijing 100083 China

The nanostructured zirconia coatings were deposited by atmospherically plasma spraying. Scanning electron microscopy （SEM）, transmission electron microscopy （TEM） and X-ray diffraction were used to investigate the microstructure of the zirconia coatings. Thermal diffusivity values at normal temperatures have been evaluated by laser flash technique. Effect of annealing on the microstructure evolution of the zirconia coating has been performed. The grains and thermal diffusivity are increased with increasing annealing time and temperature. The grain growth is according to the GRIGC （the grain rotation induced grain coalescence） mechanism. The increase in thermal diffusivity is attributed to the grain growth and the decrease in porosity of nanostructured zirconia coatings.

关键词： Grain size Thermal diffusivity Thermal barrier coating Plasma spraying

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Bio-inspired Attachment Mechanism of Dynastes Hercules:Vertical Climbing for On-Orbit Assembly Legged Robots

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Journal of Bionic Engineering 2024年第1期21卷 137-148页

作者： Yuetian Shi Xuyan Hou Zhonglai na Jie zhou nan Yu Song Liu Linbo Xin Guowei Gao Yuhui Liu School of Mechatronics Engineering Harbin Institute of TechnologyHarbin 150001China

With the increasing size of space facilities,on-orbit assembly requires robots to move on different heights of *** paper proposes a bio-inspired attachment mechanism for robot feet to enable climbing on different heights of *** by the attachment and grasping abilities of Dynastes Hercules,we utilize its foot microstructures,such as microhooks and setae,to achieve efficient contact and firm grip with the *** morphology and arrangement of these structures can inspire the design of robot feet to improve their grasping and stability *** study the biological structure of Dynastes Hercules,design and optimize the bio-inspired structure,analyze the influence of various factors from theoretical and experimental perspectives,and verify the feasibility of the scheme through *** propose an ideal climbing strategy that provides useful reference for robot applications in ***,the influence laws of various factors in this paper can be applied to robot foot design to improve their operation ability and stability performance in the space *** bio-inspired mechanism can improve robot working range and efficiency,which is critical for on-orbit assemblyin space.

关键词： Space assembly robot Truss climbing Bionic structure Dynastes Hercules tarsus

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新疆阿克苏和吐鲁番地区硬蜱中3种立克次体检测及遗传进化分析

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动物医学进展 2024年第7期45卷 42-47页

作者：温丽翠李才善周娜赵珊珊石文玉普浩刘诗语伍军巴音查汗新疆农业大学动物医学学院新疆乌鲁木齐830052

分析采自新疆阿克苏(SY)和吐鲁番(ADH)两地共132只蜱样本,研究蜱与其携带共生菌、病原三者之间的遗传进化关系。提取单个蜱总Dna,采用PCR方法对132份Dna样品进行无浆体16S rRna基因扩增检测,挑选7份阳性样本基于COI基因进行分子生物学鉴... 详细信息

分析采自新疆阿克苏(SY)和吐鲁番(ADH)两地共132只蜱样本,研究蜱与其携带共生菌、病原三者之间的遗传进化关系。提取单个蜱总Dna,采用PCR方法对132份Dna样品进行无浆体16S rRna基因扩增检测,挑选7份阳性样本基于COI基因进行分子生物学鉴定;使用MEGA X构建系统发育树,采用Dna SP V5.0软件统计两地蜱单倍型的数量,计算突变位点和核甘酸多样性。经PCR检测发现蜱无浆体总感染率为34.8%(46/132);测序结果发现SY1为图兰扇头蜱(46/132),携带斑点热立克次体,SY2、SY3及SY4为亚洲璃眼蜱,其中SY2、SY3携带*** sp.,SY4携带嗜吞噬细胞无浆体;ADH1、ADH2及ADH3为小亚璃眼蜱,ADH1携带绵羊无浆体,ADH2、ADH3携带*** sp.。构建系统发育树分析发现,ADH2、ADH3、SY2、SY3中鉴定出的Candidatus Midichloria mitochondrii sp.(*** sp.),与意大利株***同源性较高聚为一支,SY4中鉴定出的Anaplasma sp.与新疆株嗜吞噬细胞无浆体聚为一支,ADH1中鉴定的Anaplasma sp.与意大利株绵羊无浆体聚为一支;SY1与斑点热立克次体表现出较近的亲缘关系;单倍型结果分析显示,***单倍型数量为2,突变位点为4,核酸多样性为0.00408。***单倍型数量为3,突变位点为3,核酸多样性为0.00303,两个地区亚洲璃眼蜱和小亚璃眼蜱的基因流动性较低。研究从亚洲璃眼蜱和小亚璃眼蜱中均检测出*** sp.,可为后续蜱-蜱传疾病-共生菌三者之间的关系提供理论基础。

关键词：蜱传疾病共生菌进化分析

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乡村振兴视角下实现农业现代化的路径探析

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理论探讨 2022年第2期 159-164页

作者：周娜天津师范大学马克思主义学院天津300387

推进农业农村现代化是全面建设社会主义现代化国家的重大任务,实施乡村振兴战略是加快推进农业农村现代化的必然要求。农业现代化可以通过产业振兴和绿色发展为乡村振兴提供核心支撑,而乡村振兴可以通过生产力革新和生产关系调整为农业... 详细信息

推进农业农村现代化是全面建设社会主义现代化国家的重大任务,实施乡村振兴战略是加快推进农业农村现代化的必然要求。农业现代化可以通过产业振兴和绿色发展为乡村振兴提供核心支撑,而乡村振兴可以通过生产力革新和生产关系调整为农业现代化提供重要依托。乡村振兴视角下实现农业现代化的路径在于:科学规划、合理引导,优化产业链布局;提高农民组织化程度,重塑产业链利益联结机制;加强农村基础设施建设,引才聚智,释放要素活力;构建乡村生态命运共同体,完善制度体系,提高治理能力。

关键词：乡村振兴农业现代化产业链乡村治理

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Relative importance of climate factors and human activities in impacting vegetation dynamics during 2000–2015 in the Otindag Sandy Land,northern China

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Journal of Arid Land 2017年第4期9卷 558-567页

作者： MA Wenyong WANG Xunming zhou na JIAO Linlin Key Laboratory of Water Cycle&Related Land Surface Processes Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China College of Management Science and Engineering Hebei University of Economics and BusinessShijiazhuang 050061China

In recent years, there has been increasing research interests in differentiating the relative importance of climate factors and human activities in impacting vegetation dynamics. In this study, based on residual trend method, we used MOD13A3（MODIS vegetation index product）, MCD12Q1（MODIS land cover product） and meteorological datasets to differentiate the relative importance of climate factors and human activities in impacting vegetation dynamics during 2000–2015 in the Otindag Sandy Land, northern China. Results show that during the study period（2000–2015）, the overall vegetation condition had improved in the Otindag Sandy Land. The driving forces of vegetation dynamics differed spatially in the whole study area over the study period. The area with vegetation degradation solely resulted from human activities accounted for 8.23% of the study area, while the area with vegetation degradation resulted from others（including climate factors and combination of climate factors and human activities） occupied 1.53%. The area with vegetation recovery benefitted from human activities occurred over 26.02% of the study area; the area benefitted from climate factors accounted for 23.69%; and the area benefitted from both climate factors and human activities occupied 37.74%. All in all, impacts of climate factors and human activities on vegetation dynamics varied at the county/city/banner scales and locality-specific measures should be adopted to protect the environments.

关键词： vegetation NDVI climate factors human factors Otindag Sandy Land

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国内地铁施工安全管理文献计量可视化探析

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价值工程 2024年第22期43卷 1-4页

作者：贾雪婷王玉琦靳天禄周娜张培兴汪猛河北经贸大学管理科学与信息工程学院石家庄050061

以中国知网电子文献为数据源,主要运用文献计量可视化工具CiteSpace对2003-2023年国内地铁施工安全管理领域的1544篇文献进行了整理,并在此基础上初步绘制科学知识图谱,分别从发文量特征、作者合作关系、文献属性及聚类关系四个方面进... 详细信息

以中国知网电子文献为数据源,主要运用文献计量可视化工具CiteSpace对2003-2023年国内地铁施工安全管理领域的1544篇文献进行了整理,并在此基础上初步绘制科学知识图谱,分别从发文量特征、作者合作关系、文献属性及聚类关系四个方面进行可视化分析。结果显示:地铁施工安全管理发文数量总体上呈现出稳定增长态势,发文作者呈多个群体特征;《山西建筑》、《工程技术研究》等专业刊物是发文重要载体,铁路运输学科发文占据绝对主流;研究热点目前对于BIM技术、监测技术关注度不够,研究趋势则是将BIM技术、数值模拟、风险评估和监测等技术引入地铁施工安全管理流程中。

关键词：地铁施工安全管理 CiteSpace 科学知识图谱作者合作关系聚类关系

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Dynamically lithium-compensated polymer artificial SEI to assist highly stable lithium-rich manganese-based anode-free lithium metal batteries

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Rare Metals 2024年第6期43卷 2527-2535页

作者： Ming-Ji Peng Jin-Qiu zhou Ting-Ting Han Yang zhou Jie Liu na Xu Zhen-Kang Wang Wen-Bin Lin Cheng-Lin Yan Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry College of EnergySoochow UniversitySuzhou 215006China Light Industry Instituteof Electrochemical Power Sources Suzhou 215006China School of Chemistry and Chemical Engineering Nantong UniversityNantong 226019China e-mail:jliu93@*** State Key Laboratory of Space Power-Sources Technology Shanghai Institute of Space Power-SourcesShanghai 200245China Centre Energie Materiaux et TélécommunicationsInstitut National de la Recherche ScientifiqueVarennesQC J3X 1S2Canada Zhangjiagang Industrial Technologies Soochow UniversitySuzhou 215006China

Owing to the unique structure,anode-free lithium metal batteries(AFLMBs)have higher energy density and lower production cost than traditional lithium metal batteries(LMBs)or lithium-ion batteries(LIBs),However,AFLMBs suffer from an inherently finite Li reservoir and exhibit poor cycle stability,low Coulombic efficiency(CE)and severe dendrite *** this work,polydiallyl lithium disulfide(PDS-Li)was successfully synthesized and coated on Cu current collector by electrochemical *** PDS-Li acts as an additional lithium resource to compensate for the irreversible loss of lithium during *** addition,the special structure and lithiophilicity of PDS-Li contribute to lower nucleation overpotential and uniform lithium *** coupled with Li-rich manganese-based(LRM)cathode of Li1.2Mn0.54Ni0.13Co0.13O2,the anode-free full cell exhibits significantly improved cycle stability over 100 cycles and capacity retention of 63.3%and 57%after 80 and 100 cycles,*** believe that PDS-Li can be used to ensure stable cycling performance and high-energy-density in AFLMBs.

关键词： Anode-free Artificial solid electrolyte interphase(SEI) Lithium metal batteries Lithium-rich cathode Finite element simulation

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