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3D printing encouraging desired in-situ polypyrrole seed-polymerization for ultra-high energy density supercapacitors

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Journal of Energy Chemistry 2024年第8期95卷 117-125页

作者： tiantian zhou Shangwen Ling Shuxian Sun Ruoxin Yuan Ziqin Wu Mengyuan Fu Hanna He Xiaolong Li Chuhong Zhang State Key Laboratory of Polymer Materials Engineering Polymer Research Institute Sichuan University

The tireless pursuit of supercapacitors with high energy density entails the parallel advancement of wellsuited electrode materials and elaborately engineered architectures.Polypyrrole（PPy） emerges as an exceedingly conductive polymer and a prospective pseudocapacitive materials for supercapacitors,yet the inferior cyclic stability and unpredictable polymerization patterns severely impede its real-world applicability.Here,for the first time,an innovative seed-induced in-situ polymerization assisted 3D printing strategy is proposed to fabricate PPy-reduced graphene oxide/poly（vinylidene difluoride-cohexafluoropropylene）(PVDF-HFP)（PPy-rGO/PH） electrodes with controllable polymerization behavior and exceptional areal mass loading.The preferred active sites uniformly pre-planted on the 3D-printed graphene substrates serve as reliable seeds to induce efficient polypyrrole deposition,achieving an impressive mass loading of 185.6 mg cm-2(particularly 79.2 mg cm-2for polypyrrole) and a superior areal capacitance of 25.2 F cm-2at 2 mA cm-2for a 12-layer electrode.In agreement with theses appealing features,an unprecedented areal energy density of 1.47 mW h cm-2for a symmetrical device is registered,a rarely achieved value for other PPy/rGO-based supercapacitors.This work highlights a promising route to preparing high energy density energy storage modules for real-world applications.

关键词： 3D printing High energy density Polypyrrole Seed-induced polymerization Supercapacitor

Uridine dynamic administration affects the circadian variation of bile acid metabolism in high-fat-diet-fed mice

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BIOCELL 2022年第11期46卷 2433-2442页

作者： tiantian zhou YUMEI ZHANG JUAN ZHANG CHUNYAN XIE ZHENYA ZHAI XIN WU CAS Key Laboratory of Agri-Ecological Processes in Subtropical Region Institute of Subtropical Agriculturethe Chinese Academy of SciencesHunan Provincial Engineering Research Center for Healthy Livestock and Poultry ProductionChangsha410125China Institute of Biological Resources Jiangxi Academy of SciencesNanchang330096China University of Chinese Academy of Sciences Beijing100049China

High-fat diet(HFD)is demonstrated to disturb the bile acid metabolism.The rhythm of bile acid metabolism can also be affected by uridine,whose metabolism exhibits a daily rhythm.However,the mechanism of dynamic uridine administration affecting bile acid during HFD remains unclear.In this study,C57BL/6J mice were fed HFD(the control group;CON)or HFD with oral administration of uridine in the daytime(DUR)and nighttime(NUR)to investigate the mechanism of the effect of uridine on the bile acid.This study showed that the mRNA expression of uridine transporters and circadian clock genes in the jejunum was affected by zeitgeber time(ZT)(P<0.001).Genes related to the metabolism of pyrimidines in the liver showed a high dependence on daily rhythm(P<0.01),and DUR remarkably up-regulated the expression of ribonucleotide reductase regulatory subunit M2(RRM2)(P<0.05)compared to the CON group.Importantly,the mRNA expression of bile acids nuclear receptors,bile acid synthesis,and transporters in the liver showed significantly rhythmically changed(P<0.05),and the expression of cholesterol 7-alpha-hydroxylase(CYP7A1),fibroblast growth factor receptor 4(FGFR4),Na^(+)/taurocholate co transporting polypeptide(NTCP),and bile salt export pump(BSEP)mRNAs of mice with uridine administration increased significantly(P<0.05).The mRNA expression of the transporters of cholesterol and bile acids in the ileum was also affected by ZT(P<0.01)and significantly dependent on uridine administration(P<0.05).The expression of FXR and SHP was significantly affected by ZT and uridine,respectively.In conclusion,dynamic administration of uridine could regulate the rhythm of gene expression of pyrimidine and bile acid metabolism in the liver and ileum of HFD-fed mice,which contributed to the further study of circadian rhythmic physiological and pathological changes of bile acids.

关键词： Diurnal rhythm Uridine Dynamic Bile acids metabolism High-fat diet

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山苏彝语通用量词ma^(44)的多功能性

民族语文 2024年第1期 106-118页

作者：周天天暨南大学中文系广州215095

本文着重对彝语南部方言山苏彝语的通用量词ma^(44)进行系统描写,从历时视角分析其语法化路径。ma^(44)在基本计量功能的基础上,发展出了数量转指、指量转指、定指性转指等功能,进一步语法化为词汇名物化标记、关系子句标记、补足语子... 详细信息

本文着重对彝语南部方言山苏彝语的通用量词ma^(44)进行系统描写,从历时视角分析其语法化路径。ma^(44)在基本计量功能的基础上,发展出了数量转指、指量转指、定指性转指等功能,进一步语法化为词汇名物化标记、关系子句标记、补足语子句标记、状语从句标记,呈现多功能性特征。

关键词：山苏舞语通用量词多功能性语法化

A Van der Waals plug-and-probe approach

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SmartMat 2023年第6期4卷 1-5页

作者： tiantian zhou Deyang Ji Department of Chemistry Tianjin Key Laboratory of Molecular Optoelectronic SciencesInstitute of Molecular Aggregation ScienceTianjin UniversityTianjinChina Haihe Laboratory of Sustainable Chemical Transformations TianjinChina

The“More than Moore”strategic approach would break fundamental materials challenges and extend the miniaturization of silicon-based electronics for particular application realms such as“Internet of Things”and artificial intelligence.1-4 Two-dimensional(2D)semiconductors5–7 and lead halide perovskites(LHPs)8,9 have significant potential and are serious contenders for a new generation of electronic materials due to their inherent merits.

关键词： artificial approach perovskite

贝克尔“量质权衡”人口论刍议——基于家计金融扩张与家庭资产负债表衰退“合成谬误”视角

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现代经济探讨 2024年第2期 37-50页

作者：苗国周恬恬江苏省社会科学院区域现代化研究院南京210004 南京师范大学教育科学学院南京师范大学江苏省教师培训中心南京210013

人口再生产作为家庭再生产最重要的“资产建设”科目,具备“储蓄”“保险”及“期货”等多重家庭金融资产含义。子女后代从家庭私有逐步成为国家和社会公共产品,生儿育女这一底层家计资产的“金融化”趋势紧随其后。生育行为“养儿防老... 详细信息

人口再生产作为家庭再生产最重要的“资产建设”科目,具备“储蓄”“保险”及“期货”等多重家庭金融资产含义。子女后代从家庭私有逐步成为国家和社会公共产品,生儿育女这一底层家计资产的“金融化”趋势紧随其后。生育行为“养儿防老”的社会功能被家计金融进一步弱化,金融虚拟财富对老年生活质量的保障功能愈加重要,但家计金融无法从本质上替代“养儿防老”。面对少子老龄化诱发的金融市场动荡,金融体系的“膨胀-衰退”周期与人口通缩密切关联,防范各层级资产负债表衰退,东亚邻国的“合成谬误”历史教训值得借鉴反思。

关键词：家计金融生命周期理论合成谬误资产负债表衰退

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国家翻译实践论视域下的隐喻英译管窥

当代外语研究 2024年第1期 125-135页

作者：孙毅周恬恬广东外语外贸大学广州510420

国家翻译实践论是中国学者开创的新时代译学理论。国家话语翻译作为一种自利性国家行为牵涉多重国家关切。隐喻强大的认知功能使其成为国家话语常用方式和国家话语翻译重点;隐喻丰富的联想意义同时构成了国家话语翻译的难点。以《中共... 详细信息

国家翻译实践论是中国学者开创的新时代译学理论。国家话语翻译作为一种自利性国家行为牵涉多重国家关切。隐喻强大的认知功能使其成为国家话语常用方式和国家话语翻译重点;隐喻丰富的联想意义同时构成了国家话语翻译的难点。以《中共中央关于党的百年奋斗重大成就和历史经验的决议》为样本,在国家翻译实践论指导下探究国家话语隐喻翻译,以踵事增华,为国家翻译能力建构添砖加瓦。

关键词：国家翻译实践国家话语隐喻翻译

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以何为尺度:教育时间的历史图景与未来想象

终身教育研究 2024年第1期35卷 42-48页

作者：周恬恬南京师范大学教育科学学院江苏省教师培训中心

教育时间的研究重点是对教育中的“时间”进行有意识地反思,对教育时间的日常知识及实践进行“考古”和“想象”、“追溯”与“预见”。本文从教育时间的概念出发,在经验反思、社会变迁和历史比较的视野中厘清教育时间的两种属性:作为... 详细信息

教育时间的研究重点是对教育中的“时间”进行有意识地反思,对教育时间的日常知识及实践进行“考古”和“想象”、“追溯”与“预见”。本文从教育时间的概念出发,在经验反思、社会变迁和历史比较的视野中厘清教育时间的两种属性:作为制度性符号系统的教育时间和作为个体性经验感知的教育时间,梳理和概括古典、现代和晚期现代社会形态下教育时间的阶段性特征,并对未来社会教育时间的可能形态进行想象。教育应当以人的发展为尺度,建构弹性的教育时间,纾解教育时间的起点竞争、时间焦虑,打破机械量化的时间规训,使时间真正“承载”个体发展与社会进步。

关键词：教育时间学校教育个体经验历史图景未来想象

Ternary ZnO/Co_(3)O_(4)/NiO inherited layered core-shell structure from a double template for high performanced supercapacitor

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Journal of Materiomics 2021年第4期7卷 708-720页

作者： Linli Zhu Chen Hao Saisai zhou Xiaohong Wang tiantian zhou Yaning Guo School of Chemistry and Chemical Engineering Jiangsu UniversityZhenjiangJiangsu212013China

Relying on seed method,a double template ZIF-8@ZIF-67 with a layered core-shell structure was made,which is used as a sacrificial template in the next steps.After going through loading process with solvent thermal method and calcination process,ZIF-8@ZIF-67 was etched and calcined into ternary ZnO/Co_(3)O_(4)/NiO successfully.Besides,benefiting from right amount of the addition of inorganic salts,the optimized ZnO/Co_(3)O_(4)/NiO-2(ZCN-2)shows the outstanding performance in its morphologic structure and electrochemical performance.In the case of a current density of 1 Ag^(-1),the high specific capacitance of 1119.11 Cg^(-1) can be calculated in ZCN-2.In addition,at 10 Ag^(-1),the capacitance value can maintain 93.75%after experiencing 5000 cycles of charging and discharging.The maximum energy density of the assembled ZCN-2//activated carbon(AC)asymmetric supercapacitor can reach 95.82 Wh kg^(-1),which is really outstanding in the present research achievements.After experiencing charge-discharge cycles with the number of 10,000 times in the case of a current density of 10 Ag^(-1),the cycling stability of this supercapacitor can reach 94.53%of the initial value.And after a charge,the device connected by two supercapacitors can make a light emitting diode(LED)shine up to 30 min successfully.

关键词： Seed method ZIF-8@ZIF-67 Multi-metal oxide Stability Supercapacitor

灌溉基础设施对我国种植业全要素生产率的动态影响研究

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华中农业大学学报（社会科学版） 2024年第1期 39-48页

作者：盛誉周甜甜王艾昭邓海艳北京大学现代农学院北京100871 中央财经大学经济学院北京102206 北京理工大学人文与社会科学学院北京100081

灌溉基础设施建设对改善农业生产条件,提升农业生产力具有重要意义。利用农业投入产出数据重新计算1980-2018年27个省(自治区)种植业全要素生产率,并在此基础上采用结构断点模型实证分析灌溉基础设施在不同时期对种植业全要素生产率的... 详细信息

灌溉基础设施建设对改善农业生产条件,提升农业生产力具有重要意义。利用农业投入产出数据重新计算1980-2018年27个省(自治区)种植业全要素生产率,并在此基础上采用结构断点模型实证分析灌溉基础设施在不同时期对种植业全要素生产率的不同作用。结果表明:虽然过去40年灌溉基础设施在促进种植业全要素生产率提升方面发挥了重要作用,但其边际影响跨地区存在显著差异,并随农业农村转型发展逐步降低,这导致灌溉基础设施投资的边际收益率随时间呈现递减趋势。基于上述结果提出,改善灌溉基础设施投资区域布局,优化公共投资方向是提升灌溉基础设施效率的有效手段。

关键词：种植业全要素生产率灌溉动态影响内部收益率