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A hybrid fuel cell for water purification and simultaneously electricity generation

Frontiers of Environmental Science & Engineering 2023年第1期17卷 121-132页

作者： yujun zhou Qinghua Ji Chengzhi Hu Huijuan Liu Jiuhui Qu Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094China

The development of highly efficient energy conversion technologies to extract energy from wastewater is urgently needed,especially in facing of increasing energy and environment ***,we successfully fabricated a novel hybrid fuel cell with BiOCl-NH_(4)PTA as *** polyoxometalate(NH_(4)PTA)act as the acceptor of photoelectrons and could retard the recombination of photogenerated electrons and holes,which lead to superior photocatalytic *** utilizing BiOCl-NH_(4)PTA as photocatalysts and Pt/C air-cathode,we successfully constructed an electron and mass transfer enhanced photocatalytic hybrid fuel cell with flow-through field(F-HFC).In this novel fuel cell,dyes and biomass could be directly degraded and stable power output could be *** 87%of dyes could be degraded in 30 min irradiation and nearly 100%removed within 90 *** current density could reach up to~267.1μA/cm^(2);with maximum power density(Pmax)of~16.2μW/cm^(2) with Rhodamine B as organic pollutant in *** power densities were 9.0μW/cm^(2),12.2μW/cm^(2),and 13.9μW/cm^(2) when using methyl orange(MO),glucose and starch as substrates,*** hybrid fuel cell with BiOCl-NH_(4)PTA composite fulfills the purpose of decontamination of aqueous organic pollutants and synchronous electricity ***,the novel design cell with separated photodegradation unit and the electricity generation unit could bring potential practical application in water purification and energy recovery from wastewater.

关键词： Flow-through field Hybrid fuel cell Polyoxometalates Water purification Electricity generation

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Stable Zinc Anodes Enabled by Zincophilic Cu Nanowire Networks

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Nano-Micro Letters 2022年第2期14卷 311-323页

作者： Shiyin Xie Yang Li Xu Li yujun zhou Ziqi Dang Jianhua Rong Liubing Dong College of Chemistry and Materials Science Jinan UniversityGuangzhou 511443People’s Republic of China

Zn-based electrochemical energy storage(EES)systems have received tremendous attention in recent years,but their zinc anodes are seriously plagued by the issues of zinc dendrite and side reactions(e.g.,corrosion and hydrogen evolution).Herein,we report a novel strategy of employing zincophilic Cu nanowire networks to stabilize zinc anodes from multiple *** to experimental results,COMSOL simulation and density functional theory calculations,the Cu nanowire networks covering on zinc anode surface not only homogenize the surface electric field and Zn^(2+)concentration field,but also inhibit side reactions through their hydrophobic ***,facets and edge sites of the Cu nanowires,especially the latter ones,are revealed to be highly zincophilic to induce uniform zinc nucleation/***,the Cu nanowire networks-protected zinc anodes exhibit an ultralong cycle life of over 2800 h and also can continuously operate for hundreds of hours even at very large charge/discharge currents and areal capacities(e.g.,10 mA cm^(-2)and 5 mAh cm^(-2)),remarkably superior to bare zinc anodes and most of currently reported zinc anodes,thereby enabling Zn-based EES devices to possess high capacity,16,000-cycle lifespan and rapid charge/discharge *** work provides new thoughts to realize long-life and high-rate zinc anodes.

关键词： Zn-based energy storage Zinc anodes Zinc dendrite Zincophilic materials Cu nanowire networks

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Carbothermal Diffusion Reaction Synthesis of CrN/carbon Nanofiber for Efficient Electrosorption of Fluoride Ions from Water

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Advanced Fiber Materials 2024年第6期6卷 1969-1979页

作者： Xuran Yang Hao Zhang Jiamin Gao Yiyuan Yao yujun zhou Junwen Qi Yue Yang Zhigao Zhu Jiansheng Li Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse School of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094China

Development of novel electrode materials with the integration of structural and compositional merits can essentially improve the electrosorption ***,we demonstrate a new strategy,named as carbothermal diffusion reaction synthesis(CDRS),to fabricate binder-free CrN/carbon nanofiber electrodes for efficient electrosorption of fluoride ions from *** CDRS strategy involves electrospinning MIL-101(Cr)particles with polyacrylonitrile(PAN)to form one-dimensional nanofiber,followed by spatial-confined pyrolysis process in which the nitridation reaction occurred between nitrogen element from PAN and chromium element from MIL-101(Cr),resulting macroscopic,free-standing electrodes with well dispersed ultrafine CrN nanoparticles on porous nitrogen enriched carbon *** expected,the F-adsorption capacity reached 47.67 mg g-1 and there was no decrease in F-removal after 70 adsorption regenerations in 50 mg L-1 F-solution at 1.2 *** adsorption mechanism of F-was explored by X-ray photoelectron spectroscopy(XPS)and density functional theory(DFT).The enhanced F-adsorption capacity was achieved by the reversible Cr4+/Cr3+redox pair provided by CrN and the electrical double layer capacitance produced by carbon *** study provides guidance on synergistic modulation of shaping and composition optimization of novel functional materials for electrosorption,catalysis,and supercapacitor applications.

关键词： Defluorination Electrosorption MIL-101(Cr) CrN Electrospinning Binder-free

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Communication-Censored Distributed Learning for Stochastic Configuration Networks

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International Journal of Intelligence Science 2022年第2期12卷 21-37页

作者： yujun zhou Xiaowen Ge Wu Ai College of Science Guilin University of Technology Guilin China

This paper aims to reduce the communication cost of the distributed learning algorithm for stochastic configuration networks (SCNs), in which information exchange between the learning agents is conducted only at a trigger time. For this purpose, we propose the communication-censored distributed learning algorithm for SCN, namely ADMMM-SCN-ET, by introducing the event-triggered communication mechanism to the alternating direction method of multipliers (ADMM). To avoid unnecessary information transmissions, each learning agent is equipped with a trigger function. Only if the event-trigger error exceeds a specified threshold and meets the trigger condition, the agent will transmit the variable information to its neighbors and update its state in time. The simulation results show that the proposed algorithm can effectively reduce the communication cost for training decentralized SCNs and save communication resources.

关键词： Event-Triggered Communication Distributed Learning Stochastic Configuration Networks (SCN) Alternating Direction Method of Multipliers (ADMM)

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Honokiol alleviated neurodegeneration by reducing oxidative stress and improving mitochondrial function in mutant SOD1 cellular and mouse models of amyotrophic lateral sclerosis

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Acta Pharmaceutica Sinica B 2023年第2期13卷 577-597页

作者： yujun zhou Jingshu Tang Jiaqi Lan Yong Zhang Hongyue Wang Qiuyu Chen Yuying Kang Yang Sun Xinhong Feng Lei Wu Hongtao Jin Shizhong Chen Ying Peng State Key Laboratory of Bioactive Substances and Functions of Natural Medicines Institute of Materia MedicaChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100050China Department of Natural Medicines School of Pharmaceutical SciencesPeking UniversityBeijing 100191China Department of Neurology Beijing Tsinghua Changgung HospitalSchool of Clinical MedicineTsinghua UniversityBeijing 102218China New Drug Safety Evaluation Center Institute of Materia MedicaChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100050China NMPA Key Laboratory for Safety Research and Evaluation of Innovative Drug Beijing 100050China

Amyotrophic lateral sclerosis(ALS)is a progressive neurodegenerative disease affecting both upper and lower motor neurons(MNs)with large unmet medical *** pathological mechanisms are considered to contribute to the progression of ALS,including neuronal oxidative stress and mitochondrial ***(HNK)has been reported to exert therapeutic effects in several neurologic disease models including ischemia stroke,Alzheimer’s disease and Parkinson’s *** we found that honokiol also exhibited protective effects in ALS disease models both in vitro and in *** improved the viability of NSC-34 motor neuron-like cells that expressed the mutant G93A SOD1 proteins(SOD1-G93A cells for short).Mechanistical studies revealed that honokiol alleviated cellular oxidative stress by enhancing glutathione(GSH)synthesis and activating the nuclear factor erythroid 2-related factor 2(NRF2)-antioxidant response element(ARE)***,honokiol improved both mitochondrial function and morphology via fine-tuning mitochondrial dynamics in SOD1-G93A ***,honokiol extended the lifespan of the SOD1-G93A transgenic mice and improved the motor *** improvement of antioxidant capacity and mitochondrial function was further confirmed in the spinal cord and gastrocnemius muscle in ***,honokiol showed promising preclinical potential as a multiple target drug for ALS treatment.

关键词： Amyotrophic lateral sclerosis Glutathione Honokiol Mitochondrial biogenesis Mitochondrial dynamics NRF2 Oxidative stress SOD1-G93A

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授权改革试点立法条件成熟的学理诠释

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法学 2023年第1期 49-64页

作者：周宇骏湖南大学

授权改革试点是新时代我国推进改革创新的法治化路径,明晰其立法条件成熟标准具有重要意义。然而,从当前的法律规范和理论共识中无法找到涵盖相应标准的可行方案,过往试点经验也只是零打碎敲、未成体系,由此导致制度实践中改革效率受限... 详细信息

授权改革试点是新时代我国推进改革创新的法治化路径,明晰其立法条件成熟标准具有重要意义。然而,从当前的法律规范和理论共识中无法找到涵盖相应标准的可行方案,过往试点经验也只是零打碎敲、未成体系,由此导致制度实践中改革效率受限、新法权威性不足等问题。从授权改革试点的规范设计、本质属性和过往实践来看,其立法条件成熟的标准应体现为一种合目的性判断逻辑。该判断在价值目的上,考察试点对改革发展方向和授权预设目标的落实;在规范性目的上,分析试点设计是否明确、具体、可执行,与法律体系是否融贯;在事实目的上,判断试点手段对客观规律和比例原则的遵循;并按照“价值目的—规范性目的—事实目的”之顺序在实践中具体展开。

关键词：授权试点立法立法条件成熟合目的性改革

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《立法法》试点立法条款的分离设置及其权力逻辑

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政治与法律 2024年第1期 41-59页

作者：周宇骏湖南大学法学院湖南长沙410082

本轮《中华人民共和国立法法》修改过程中形成了一种统一规范试点立法条款的共识性建议,但最终并未被采纳,而是对有关制度采取了分离设置模式。盖因此种建议的强守法主义逻辑与立法内在要求相悖,其单向视角亦未能顾及央地关系的核心现... 详细信息

本轮《中华人民共和国立法法》修改过程中形成了一种统一规范试点立法条款的共识性建议,但最终并未被采纳,而是对有关制度采取了分离设置模式。盖因此种建议的强守法主义逻辑与立法内在要求相悖,其单向视角亦未能顾及央地关系的核心现实。试点立法分离设置设计体现出差异化的权力运行方式与制度目的:由中央主导的试点制度,授出专属事权以实现特殊法治状态;由地方负责的试点制度,创新规范形式以塑造特定法治区域。其差异背后仍呈现出一以贯之的立法权配置逻辑:明确中央专属立法事权以维护法制统一,根据距离专属事权远近分层次减少对其他事权规定限制以释放改革活力。

关键词：立法法修改试点立法央地关系权力配置

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霍桑与催眠术

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国外文学 2010年第3期30卷 108-115页

作者：周玉军华南师范大学外文学院

本篇论文对霍桑三部长篇小说《红字》、《七个尖角阁的房子》、《福谷传奇》以及几个短篇小说中与催眠术等精神现象有关的情节进行分析,进而联系霍桑及其亲友的生平,归纳了霍桑小说人物刻画和情节设置的基本特征,并指出其小说缺乏能与... 详细信息

本篇论文对霍桑三部长篇小说《红字》、《七个尖角阁的房子》、《福谷传奇》以及几个短篇小说中与催眠术等精神现象有关的情节进行分析,进而联系霍桑及其亲友的生平,归纳了霍桑小说人物刻画和情节设置的基本特征,并指出其小说缺乏能与邪恶势力进行斗争的正面人物形象的原因在于作者对社会进步和科学发展持保留态度。

关键词：霍桑科学伪科学催眠术

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合目的性的审查分层:我国地方性法规审查基准的实践及其逻辑

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政治与法律 2021年第3期 74-87页

作者：周宇骏湖南大学法学院湖南长沙410082

当前我国地方立法审查工作所面临的现实和理论问题,要求从制度实践出发总结一套适应实际的审查基准。从制度起源、各国通例以及我国立法机关的实践活动来看,审查基准应是审查机关基于与其他机关之权力关系、对立法的合目的性进行类型化... 详细信息

当前我国地方立法审查工作所面临的现实和理论问题,要求从制度实践出发总结一套适应实际的审查基准。从制度起源、各国通例以及我国立法机关的实践活动来看,审查基准应是审查机关基于与其他机关之权力关系、对立法的合目的性进行类型化考察并选择介入程度的行动方案。我国“审查机关”与“中央立法机关”合一的独特制度构造,促使地方性法规审查在实践中根据合目的性要求具体分化为“融贯目的-价值目的-效用目的”的三重分层,并基于“事项-目的-相符程度”的逻辑结构顺序展开,最终形成我国地方立法审查基准的雏形。

关键词：审查基准合目的性地方立法

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Effects of Green Forage on Production Performance and Egg Quality of Suyou No.1 Laying Duck

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Animal Husbandry and Feed Science 2014年第6期6卷 328-330,341页

作者： Yuan Xuhong Zhang Shengfu Zhang Ling Liu Chenglin zhou yujun Gu Wenjie Jiangsu Agri-animal Husbandry Vocational College Jiangsu Gaoyou Duck Group

[ Objective ] The paper was to study the effects of green forage on production performance and egg quality of laying ducks. [ Method] According to one- factor randomized complete experimental design, 200 healthy Suyou No. 1 laying ducks aged 200 days were randomly divided into five groups, four repeats each group, and each repeat contained 10 laying ducks. Parts of formulated feed in groups I - IV were replaced with different types and quantities of green forage, and group V was set as control. The trim lasted for 42 d. [ Result] Replacing parts of formulated feed with green forage could improve the production performance of laying ducks （P 〉 0.05 ）, and the economic benefits also increased. For egg quality, Haugh unit was improved （ P 〉 0.05 ） ; yolk color increased significantly ; compared to control group, yolk color was significantly increased in groups with 100 g chicory and 70 g clover （P 〈0.05 ）, and was extremely increased in the group with 100 g clover （P 〈0.01 ）. [ Conclusion] The group with 100 g chicory had the best effect on production performance of laying ducks, and the group with 100 g clover had the best coloring effect on yolk.

关键词： Clover Chicory Suyou No. 1 laying duck Production performance Egg quality

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