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Building stabilized Cu_(0.17)Mn_(0.03)V_(2)O_(5−□)·2.16H_(2)O cathode enables an outstanding room‐/low‐temperature aqueous Zn‐ion batteries

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Carbon Energy 2024年第8期6卷 25-35页

作者： Ao Wang Dai‐Huo Liu Lin Yang Fang Xu Dan Luo Haozhen Dou Mengqin Song Chunyan Xu Beinuo Zhang Jialin Zheng zhongwei chen Zhengyu Bai Key Laboratory of Green Chemical Media and Reactions Ministry of EducationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal UniversityXinxiangHenanChina The State Key Laboratory of Catalysis(SKLC) Power Battery and System Research CenterDalian Institute of Chemical PhysicsChinese Academy of SciencesDalianChina

Vanadium oxide cathode materials with stable crystal structure and fast Zn^(2+) storage capabilities are extremely important to achieving outstanding electrochemical performance in aqueous zinc‐ion *** this work,a one‐step hydrothermal method was used to manipulate the bimetallic ion intercalation into the interlayer of vanadium *** pre‐intercalated Cu ions act as pillars to pin the vanadium oxide(V‐O)layers,establishing stabilized two‐dimensional channels for fast Zn^(2+) *** occupation of Mn ions between V‐O interlayer further expands the layer spacing and increases the concentration of oxygen defects(Od),which boosts the Zn^(2+) diffusion *** a result,as‐prepared Cu_(0.17)Mn_(0.03)V_(2)O_(5−□)·2.16H_(2)O cathode shows outstanding Zn‐storage capabilities under room‐and lowtemperature environments(e.g.,440.3 mAh g^(−1) at room temperature and 294.3 mAh g^(−1)at−60°C).Importantly,it shows a long cycling life and high capacity retention of 93.4%over 2500 cycles at 2 A g^(−1) at−60°***,the reversible intercalation chemistry mechanisms during discharging/charging processes were revealed via operando X‐ray powder diffraction and ex situ Raman *** strategy of a couple of 3d transition metal doping provides a solution for the development of superior room‐/lowtemperature vanadium‐based cathode materials.

关键词： aqueous zinc‐ion batteries Cu_(0.17)Mn_(0.03)V_(2)O_(5−□)·2.16H_(2)O oxygen defects room‐/lowtemperature performance stabilized nanostructure

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In situ constructing(MnS/Mn_(2)SnS_4)@N,S-ACTs heterostructure with superior Na/Li-storage capabilities in half-cells and pouch full-cells

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Chinese Chemical Letters 2024年第11期35卷 522-527页

作者： Dai-Huo Liu Ao Wang Hong-Yan Lü Xing-Long Wu Dan Luo Wen-Hao Li Jin-Zhi Guo Haozhen Dou Qianyi Ma zhongwei chen Key Laboratory of Green Chemical Media and Reaction Ministry of EducationCollaborative Innovation Center of Henan Province for Fine Chemicals Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal UniversityXinxiang 453007China Faculty of Chemistry Northeast Normal UniversityChangchun 130024China MOE Key Laboratory for UV Light-Emitting Materials and Technology Northeast Normal UniversityChangchun 130024China Power Battery and Systems Research Center Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Department of Chemical Engineering Waterloo Institute for NanotechnologyWaterloo Institute for Sustainable EnergyWaterloo UniversityWaterlooON N2L 3G1Canada

Effective design of nanoheterostructure anode with high ion/electron migration kinetics can give electrode with superior electrochemical ***,the design and preparation of nanoheterostructure composites with high-capacity and long cycling life in half and pouch full cells remain a big ***,a novel micro-pore MnS/Mn_(2)SnS_(4)heterostructure nanowire were in situ encapsulated into the N and S elements co-doped amorphous carbon tubes(abbreviated as(MnS/Mn_(2)SnS_(4))@N,S-ACTs)and showed superior energy storage properties in Na-/Li-ion half cells and pouch full *** Na-/Li-storage capabilities improvement are attribute to the strong synergistic effect between MnS/Mn_(2)SnS_(4)heterostructure and N,S-ACTs protective layer,the former induces an local built-in electric field between Mn_(2)Sn S_(4)and MnS during charging/discharging,accelerating interfacial ion/electron diffusion dynamics,the latter effective maintains the morphology and volume evolution during Na~+/Li~+charging/discharging,achieving a long-term cycling stability(e.g.,high discharge capacity of 79.2 mAh/g with the capacity retention of 79.3%can be gained after 2200 cycles at 3 C in(Mn S/Mn_(2)Sn S_(4))@N,S-ACTs//LiFePO_(4)pouch full cells;a high capacity of~34 mAh/g at 10 C can be got with a Coulombic efficiency of 100%after 1000 cycles in pouch(Mn S/Mn_(2)Sn S_(4))@N,S-ACTs//Na_(3)V_(2)(PO_(4))_(2)O_(2)F full cells.

关键词： (MnS/Mn_(2)SnS_(4))@N S-ACTs Heterostructure Long cycling life Na-/Li-ion half cells Pouch full cells

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The equivalent model of controller in synchronous frame to stationary frame

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Global Energy Interconnection 2018年第2期1卷 122-129页

作者： Yichao Wang Lai Huang Yijia Cao Xintao Xie zhongwei chen Zhenfeng Xiao Ming Wen Zhiqiang Xu State Grid Hunan Electric Power Company Limited Economical&Technical Research Institute Changsha 410004China State Grid Hunan Electric Power Company Limited Changsha 410007China Hunan University Changsha 410082China

The system controlled in synchronous frame is commonly used. However, it is a problem how to transform the controller in synchronous frame to stationary frame. This paper deduces the stationary frame equivalent model of arbitrarily controller in synchronous frame. The equivalent model can reflect the control performance of the input signal at different frequency accurately. The unified frequency-domain model of the overall system can be established using the equivalent model, and the guidance for frequency analysis and stability analysis can be provided. Theoretical derivation and simulation results verify the correctness and generality of the equivalent model.

关键词： Synchronous frame Stationary frame Equivalent model Frequency-domain model Power electronics

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Reviving zinc-air batteries with high-density metal particles on carbon

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Science Bulletin 2020年第18期65卷 1511-1513,M0003页

作者： Zhengyu Bai Ya-Ping Deng zhongwei chen School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiang 453007China Department of Chemical Engineering University of WaterlooWaterlooOntario N2L 3G1Canada

As a century-old technique,rechargeable zinc-air batteries have been rejuvenated in the past decade[1,2].Their aqueous electrolytes enable high ionic conductivity,safety operation and fast reaction kinetics for high-r... 详细信息

关键词： kinetics high enable

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无人艇海洋背景纹理可见光迷彩图案研究

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中国造船 2020年第S1期61卷 198-203页

作者：陈中伟倪家正海军研究院北京100161

论文借鉴比较成熟的迷彩伪装设计方法,依据海洋背景颜色特征,研究了水面无人艇海洋背景纹理可见光迷彩图案设计方法。利用该方法以轻质材料为基底,提出了海洋纹理迷彩的喷涂施工方法,制作了典型结构模型并实现了其表面海洋纹理迷彩涂装... 详细信息

论文借鉴比较成熟的迷彩伪装设计方法,依据海洋背景颜色特征,研究了水面无人艇海洋背景纹理可见光迷彩图案设计方法。利用该方法以轻质材料为基底,提出了海洋纹理迷彩的喷涂施工方法,制作了典型结构模型并实现了其表面海洋纹理迷彩涂装。论文所研究的方法,不但适用于无人艇海上迷彩设计和涂装,而且也适用于较大的需要伪装的人工目标的迷彩涂装。

关键词：可见光迷彩海洋背景水上目标无人艇纹理

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Effects of Cisplatin and Metformin on Proliferation of Nasopharyngeal Carcinoma SUNE-1 Cells

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Medicinal Plant 2023年第2期14卷 63-65页

作者： Shiyi WU Shanshan HE zhongwei chen Qihuang LIN Ruonan HE Xiamen Key Laboratory of Marine Medicinal Natural Products Resources Xiamen Medical CollegeXiamen 361023China

[Objectives]This study was conducted to investigate the effects of different concentrations of cisplatin and metformin on the growth and proliferation of nasopharyngeal carcinoma SUNE-1 cells.[Methods]The concentrations of cisplatin were set as 2.5,5.0,10.0,25.0,40.0μg/mL,and those of metformin were set as 0.625,1.25,2.5,5,10,and 20 mmol/*** 48 h of intervention in nasopharyngeal carcinoma SUNE-1 cells,the proliferation inhibitory rate and the median inhibitory concentration(IC_(50))of SUNE-1 cells were measured by the CCK-8 method.[Results]It was found that different concentrations of cisplatin and metformin all had an inhibitory effect on the proliferation of SUNE-1 cells,and the inhibitory effect became more significant with the increase of *** IC_(50)values of cisplatin and metformin were 43.57μg/mL and 6.855 mmol/L,respectively.[Conclusions]Cisplatin and metformin inhibited the proliferation of SUNE-1 cells in a concentration-dependent manner,providing a theoretical guidance for the clinical treatment of nasopharyngeal carcinoma.

关键词： Cisplatin Metformin Nasopharyngeal carcinoma Proliferation

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The 2009 pandemic A/Wenshan/01/2009 H1N1 induces apoptotic cell death in human airway epithelial cells

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Journal of Molecular Cell Biology 2011年第4期3卷 221-229页

作者： Ning Yang Xiaoxu Hong Penghui Yang Xiangwu Ju Yuguo Wang Jun Tang chenggang Li Quanshui Fan Fuqiang Zhang zhongwei chen Li Xing Zhongpeng Zhao Xiao Gao Guoyang Liao Qihan Li Xiliang Wang Dangsheng Li chengyu Jiang State Key Laboratory of Medical Molecular Biology Institute of Basic Medical SciencesPeking Union Medical CollegeTsinghua UniversityChinese Academy of Medical SciencesBeijing 100005China Department of Viral Immunology Institute of Medical BiologyChinese Academy of Medicine SciencePeking Union Medical CollegeKunming 650118China State Key Laboratory of Pathogen and Biosecurity Beijing Institute of Microbiology and EpidemiologyBeijing 100071China Centre for Disease Prevention and Control Cheng Du Military RegionKunming 650032China Shanghai Institutes for Biological Sciences Chinese Academy of SciencesShanghai 200031China

In 2009,a novel swine-origin H1N1 influenza virus emerged in Mexico and quickly spread to other countries,including *** 2009 pandemic H1N1 can cause human respiratory disease,but its pathogenesis remains poorly ***,we studied the infection and pathogenesis of a new 2009 pandemic strain,A/Wenshan/01/2009 H1N1,in China in human airway epithelial cell lines compared with contemporary seasonal H1N1 influenza *** results showed that viral infection by the A/Wenshan H1N1 induced significant apoptotic cell death in both the human nasopharyngeal carcinoma cell line CNE-2Z and the human lung adenocarcinoma cell line *** A/Wenshan H1N1 virus enters both of these cell types more efficiently than the seasonal influenza *** entry in both cell lines was shown to be mediated by clathrin-and dynamin-dependent ***,we discovered that the 2009 pandemic H1N1 strain,A/Wenshan/01/2009,can induce apoptotic cell death in epithelial cells of the human respiratory tract,suggesting a molecular pathogenesis for the 2009 pandemic H1N1.

关键词： apoptosis respiratory S-OIV H1N1 influenza virus

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农业绿色生产技术的富民效应——基于农户决策偏好视角

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资源科学 2024年第8期46卷 1588-1603页

作者：陈中伟杨林源郑州航空工业管理学院经济学院郑州450046

【目的】农业绿色生产技术是助推农户与现代农业有效衔接的途径,但其应用效果受农户决策的时间偏好和风险偏好影响,基于农户决策偏好视角探讨农业绿色生产技术的富民效应具有重要意义。【方法】利用2020和2021年两期中国土地经济调查(CL... 详细信息

【目的】农业绿色生产技术是助推农户与现代农业有效衔接的途径,但其应用效果受农户决策的时间偏好和风险偏好影响,基于农户决策偏好视角探讨农业绿色生产技术的富民效应具有重要意义。【方法】利用2020和2021年两期中国土地经济调查(CLES)数据,采用多元线性回归模型和调节效应模型解析农业绿色生产技术的富民效应,并进一步考察农户决策偏好的调节作用。【结果】①农业绿色生产技术具有显著的富民效应,且对农作物的增产效应比增收效应更加明显。②农户决策偏好对农业绿色生产技术的富民效应存在调节作用,表现为农户时间偏好越低(即越偏好长期收益)、风险偏好越高,农业绿色生产技术的富民效应就越明显。③农业绿色生产技术的富民效应具有异质性。就技术供给主体而言,在3类主体的引导下,农业绿色生产技术均能产生增产效应,其中准公益性主体引导效果最强;针对农业绿色生产技术产生增收效应,准公益性主体引导效果优于公益性主体引导效果,但经营性主体引导效果不显著。就农户而言,农业绿色生产技术对助推家庭兼业化程度低的农户、种植细碎化程度高的农户增产增收具有较强的边际作用。【结论】农户决策偏好异质性是影响农业绿色生产技术发挥富民效应的关键因素,同时也要注意富民效应在不同家庭经营方式和土地经营规模的农户中表现出的差异化现象,进而制定和实施有效的农业绿色生产技术推广方案。

关键词：农业绿色生产技术富民效应时间偏好风险偏好多元线性回归模型调节效应江苏省

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An Innovative Design of Incubator Structure for Cell Culture

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Medicinal Plant 2023年第3期14卷 105-107页

作者： Shanshan HE zhongwei chen Ruonan HE Shiyi WU Qihuang LIN Engineering Research Center of Marine Biopharmaceutical Resource Fujian Province UniversityXiamen Medical CollegeXiamen 361023

In view of the problems of the traditional cell incubator,such as the small range of cell culture types,the inability to adjust the internal space of the incubator according to needs,and the inconvenient sampling,this study innovatively designed a cell incubator *** proposed a new design concept that can solve the above-mentioned *** cell incubator after the new structural modification can adjust the internal space structure of cell culture by setting the bolt-fixed connection between the fixed plate and the vessel *** realizes the cultivation of various cells through refrigeration modules and heating *** setting a sampling hole in the glass inner door,it is favorable for operators to take samples,making cell culture more convenient and efficient.

关键词： Cell incubator Innovative design Cell culture

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Polysulfide regulation by defect-modulated Ta_(3)N_(5-x) electrocatalyst toward superior room-temperature sodium-sulfur batteries

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Science Bulletin 2024年第2期69卷 197-208页

作者： Zhen Zhang Dan Luo Jun chen Chuyin Ma Matthew Li Haoze Zhang Renfei Feng Rui Gao Haozhen Dou Aiping Yu Xin Wang zhongwei chen Department of Chemical Engineering Waterloo Institute for NanotechnologyUniversity of WaterlooWaterloo N2L 3G1Canada Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023China South China Academy of Advanced Optoelectronics&International Academy of Optoelectronics at Zhaoqing South China Normal UniversityGuangzhou 510006China Chemical Sciences and Engineering Division Argonne National LaboratoryLemont 60439USA Canadian Light Source Saskatoon S7N 2V3Canada

Resolving low sulfur reaction activity and severe polysulfide dissolution remains challenging in metalsulfur *** by a theoretical prediction,herein,we strategically propose nitrogenvacancy tantalum nitride(Ta3N5-x)impregnated inside the interconnected nanopores of nitrogendecorated carbon matrix as a new electrocatalyst for regulating sulfur redox reactions in roomtemperature sodium-sulfur *** a pore-constriction mechanism,the nitrogen vacancies are controllably constructed during the nucleation of *** defect manipulation on the local environment enables well-regulated Ta 5d-orbital energy level,not only modulating band structure toward enhanced intrinsic conductivity of Ta-based materials,but also promoting polysulfide stabilization and achieving bifunctional catalytic capability toward completely reversible polysulfide ***,the interconnected continuous Ta3N5-x-in-pore structure facilitates electron and sodium-ion transport and accommodates volume expansion of sulfur species while suppressing their shuttle *** to these attributes,the as-developed Ta3N5-x-based electrode achieves superior rate capability of 730 mAh g-1 at 3.35 A g-1,long-term cycling stability over 2000 cycles,and high areal capacity over 6 mAh cm-2 under high sulfur loading of 6.2 mg *** work not only presents a new sulfur electrocatalyst candidate for metal-sulfur batteries,but also sheds light on the controllable material design of defect structure in hopes of inspiring new ideas and directions for future research.

关键词： Tantalum nitride Nitrogen defects Sodium-sulfur batteries Electrocatalysts Polysulfide conversion

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