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Restraining growth of Zn dendrites by poly dimethyl diallyl ammonium cations in aqueous electrolytes

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Rare Metals 2024年第8期43卷 3735-3747页

作者： Xiang-Xin Zhang Yuan-Qiang Chen Chang-Xin lin Yuan-sheng lin Guo-lin Hu Yong-Chuan Liu Xi-Lai Xue Su-Jing Chen Zhan-lin Yang Bai-sheng Sa Yi-Ning Zhang Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Helmholtz Institute Ulm(HIU) 89081 UlmGermany Karlsruhe Institute of Technology(KIT) 76021 KarlsruheGermany College of Materials Science and Engineering Fuzhou UniversityFuzhou350108China

Metallic zinc is an excellent anode material for Zn-ion batteries,but the growth of Zn dendrite severely hinders its practical ***,an efficient and economical cationic additive,poly dimethyl diallyl ammonium(PDDA) was reported,used in aqueous Zn-ion batteries electrolyte for stabilizing Zn *** growth of zinc dendrites can be significantly restrained by benefiting from the pronounced electrostatic shielding effect from PDDA on the Zn metal ***,the PDDA is preferentially absorbed on Zn(002) plane,thus preventing unwanted side reactions on Zn *** to the introduction of a certain amount of PDDA additive into the common ZnSO_(4)-based electrolyte,the cycle life of assembled Zn‖Zn cells(1 mA·cm^(-2) and 1 mAh·cm^(-2)) is prolonged to more than 1100 *** response to the perforation issue of Zn electrodes caused by PDDA additives,the problem can be solved by combining foamy copper with zinc *** real application,Zn-ion hybrid supercapacitors and MnO_(2)‖Zn cells were assembled,which exhibited excellent cycling stability with PDDA *** work provides a new solution and perspective to cope with the dendrite growth problem of Zn anode.

关键词： PDDA Electrostatic shielding effect Zn anode Zn dendrites

Microstructure and Mechanical Behavior of Mg-Based Bimetal Plates with High Formability Sleeve by Co-extrusion

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Acta Metallurgica Sinica(English Letters) 2024年第3期37卷 499-512页

作者： Yue-Hui Dang sheng-lin Liu Xiao-Lei Ai Xiao-Wei Feng Bo Feng Zhuo Tian Ying-Fei lin Huan-Tao Chen Kai-Hong Zheng School of Materials Science and Engineering Chang’an UniversityShaanxi 710064China Guangdong Key Laboratory of Metal Toughening Technology and Application Institute of New MaterialsGuangdong Academy of SciencesGuangzhou 510650China

In this study,microstructure and mechanical behavior of two types of Mg-based bimetal plates with a high formability sleeve were systematically studied,with a great emphasis on the effect of the interface characteristic and the sleeve fraction on the plasticity of composite *** rule of mixtures(ROM)for elongation was also *** results show that when there is no or thin diffusion layer with thickness of about 3μm,Mg-based bimetal plates have a good plasticity with elongation of about 19-24%,and the ROM predicted elongations are very close to the experimental *** contrast,with a diffusion layer about 95-155μm thick,Mg-based bimetal plates exhibit a poor plasticity with elongation of about 11-17%,and the experimental elongations largely deviate from the ROM *** plasticity of Mg-based bimetal plates increases with increasing sleeve *** study provides new insights on the plastic deformation of Mg-based bimetal composites with a high formability sleeve.

关键词： Mg-based composites Co-extrusion Microstructure Mechanical behavior Plastic deformation

In situ tracking of the lithiation and sodiation process of disodium terephthalate as anodes for rechargeable batteries by Raman spectroscopy

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Nano Research 2024年第1期17卷 245-252页

作者： Xiu-Mei lin Chong Han Xin-Tao Yang Jia-sheng lin Wei-Qiang Yang Hong-Xu Guo Yao-Hui Wang Jin-Chao Dong Jian-Feng Li Department of Chemistry and Environment Science Fujian Province University Key Laboratory of Analytical ScienceMinnan Normal UniversityZhangzhou 363000China College of Energy College of Chemistry and Chemical EngineeringCollege of MaterialsState Key Laboratory of Physical Chemistry of Solid SurfacesiChEMXiamen UniversityXiamen 361005China Institute of Optical and Electronic Technology China Jiliang UniversityHangzhou 310018China

Organic compounds represent an appealing group of electrode materials for rechargeable batteries due to their merits of biomass,sustainability,environmental friendliness,and *** terephthalate(Na_(2)C_(8)H_(4)O_(4),Na_(2)TP),an organic salt with a theoretical capacity of 255 mAh·g^(-1),is electroactive towards both lithium and ***,its electrochemical energy storage(EES)process has not been directly observed via in situ characterization techniques and the underlying mechanisms are still under ***,in situ Raman spectroscopy was employed to track the de/lithiation and de/sodiation processes of *** appearance and then disappearance of the–COOLi Raman band at 1625 cm^(-1) during the de/lithiation,and the increase and then decrease of the–COONa Raman band at 1615 cm^(-1) during the de/sodiation processes of Na2TP elucidate the one-step with the 2Li+or 2Na+transfer *** also found that the inferior cycling stability of Na2TP as an anode for sodium-ion batteries(SIBs)than lithium-ion batteries(LIBs)could be due to the larger ion radium of Na+than Li+,which results in larger steric resistance and polarization during *** Na2TP,therefore,shows greater changes in spectra during de/sodiation than de/*** expect that our findings could provide a reference for the rational design of organic compounds for EES.

关键词： disodium terephthalate(Na_(2)C_(8)H_(4)O_(4) Na2TP) in situ Raman spectroscopy de/lithiation de/sodiation mechanisms

Scorpiones,Scolopendra and Gekko Inhibit Lung Cancer Growth and Metastasis by Ameliorating Hypoxic Tumor Microenvironment via PI3K/AKT/mTOR/HIF-1αSignaling Pathway

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Chinese Journal of Integrative Medicine 2024年第9期30卷 799-808页

作者： MAO Qi-yuan WANG Xue-qian lin Fei YU Ming-wei FAN Hui-tin' ZHENG Qi LIU Lan-chun ZHANG Chu-chu LI Dao-rui lin Hong-sheng Department of Oncology Guang’anmen HospitalChina Academy of Chinese Medical SciencesBeijing100053China Department of Oncology Beijing Hospital of Traditional Chinese MedicineCapital Medical UniversityBeijing100010China Department of Cardiology Guang’anmen HospitalChina Academy of Chinese Medical SciencesBeijing100053China Institute of Traditional Chinese Medicine Information China Academy of Chinese Medical SciencesBeijing100700China

Objective:To investigate whether Buthus martensii karsch(Scorpiones),Scolopendra subspinipes mutilans ***(Scolopendra)and Gekko gecko linnaeus(Gekko)could ameliorate the hypoxic tumor microenvironment and inhibit lung cancer growth and metastasis by regulating phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin/hypoxia-inducible factor-1α(PI3K/AKT/mTOR/HIF-1α)signaling ***:Male C57BL/6J mice were inoculated with luciferase labeled LL/2-luc-M38 cell suspension to develop lung cancer models,with rapamycin and cyclophosphamide as positive *** methyl cellulose solutions of Scorpiones,Scolopendra and Gekko were administered intragastrically as 0.33,0.33,and 0.83 g/kg,respectively once daily for 21 *** expression were detected every 7 days after inoculation,and tumor growth curves were *** was performed to determine CD31 and HIF-1αexpressions in tumor tissue and microvessel density(MVD)was *** blot was performed to detect the expression of PI3K/AKT/mTOR/HIF-1αsignaling pathway-related ***-linked immunosorbent assay was performed to detect serum basic fibroblast growth factor(bFGF),transforming growth factor-β1(TGF-β1)and vascular endothelial growth factor(VEGF)in ***:Scorpiones,Scolopendra and Gekko prolonged the survival time and inhibited lung cancer metastasis and expression of HIF-1α(all Pling pathway.

关键词： Scorpiones Scolopendra Gekko dredging collaterals and activating blood Chinese medicine of worms lung cancer hypoxic tumor microenvironment phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin/hypoxia-inducible factor-1α signaling pathway

混合级联特高压直流输电线路纵联差动保护适应性分析

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电网技术 2024年第5期48卷 2170-2178,I0105-I0107页

作者：牟大林林圣李小鹏西南交通大学电气工程学院四川省成都市611756 国网四川省电力公司电力科学研究院四川省成都市610041

为探究现有高压直流输电线路纵联差动保护对混合级联特高压直流输电系统的适应性,结合混合级联特高压直流输电系统的运行方式,理论分析和仿真分析3种特殊运行方式下直流系统不同位置故障的故障特性和保护适应性。理论分析发现纵联差动... 详细信息

为探究现有高压直流输电线路纵联差动保护对混合级联特高压直流输电系统的适应性,结合混合级联特高压直流输电系统的运行方式,理论分析和仿真分析3种特殊运行方式下直流系统不同位置故障的故障特性和保护适应性。理论分析发现纵联差动保护适应性较好。仿真分析发现直流线路分布电容和逆变侧模块化多电平型换流器(modular multilevelconverter,MMC)控制特性影响在直流线路故障时直流线路电流延时自减值长时间处于波动状态,导致纵联差动保护长时间处于闭锁状态,此时,系统长时间承受MMC超大故障电流冲击。直流线路区外故障时整流侧与逆变侧直流电流差值的绝对值数值较大且长时间处于波动变化状态,纵联差动保护存在误动的风险。

关键词：混合级联特高压直流输电系统纵联差动保护适应性分析运行方式保护误动

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Feasibility Study on Recovering Human-Occupied Vehicle with An Offshore Crane

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China Ocean Engineering 2024年第4期38卷 648-662页

作者： HAN Ming-yue XIE Peng XIAN Hao-yi ZHONG Xin-xin CHEN sheng-lin SUN Tie-rui SUN Feng-lei School of Ocean Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China Key Laboratory of Comprehensive Observation of Polar Environment(Sun Yat-sen University) Ministry of EducationZhuhai 519082China Guangzhou Marine Engineering Corporation Guangzhou 510250China

Launching and recovering human-occupied vehicles(HOVs)has always been a challenging *** current recovery process requires staff to manually complete the tethering task,which is inefficient and endangers the lives of *** paper suggests moving the recovery position from the surface to underwater at approximately half the wavelength of the water depth(30−50 m underwater),where the HOV experiences less environmental *** ROV equipped with a ultra-short baseline beacon(USBL)and a manipulator was used to complete the tethering ***,a shackle customized to the shape of the manipulator’s gripper is fitted to the end of the cable to simplify the tethering *** investigate the dynamic response of recovering the HOV using this suggested method,a comprehensive numerical model is developed in this *** effects of wind,surface waves,ocean currents,and nonlinear interaction between the installation vessel and the HOV are quantitatively *** results show that the proposed recovery method can reduce the motion amplitude of the HOV and that the wave has the greatest influence on the dynamic response of the HOV during the recovery *** model provides better insight into the proposed HOV recovery method and confirms the effectiveness of the heave compensation *** proposed approach aims to enhance safety and operational efficiency by reducing direct human involvement in the recovery process and mitigating potential *** finding holds particular significance,especially in environmentally sensitive areas,where reducing the impact on the surrounding ecosystem is crucial.

关键词： human-occupied vehicle recovery dynamic response active heave compensation

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纳米液滴撞击高温平板壁的分子动力学模拟

物理学报 2024年第10期73卷 126-135页

作者：冯山青龚路远权生林郭亚丽沈胜强大连理工大学能源与动力学院热能综合利用技术国家地方联合工程研究中心大连116024

采用分子动力学的方法对纳米液滴撞击高温平板壁面产生的Leidenfrost现象进行了探究,分析了液滴撞击不同温度壁面对Leidenfrost现象的影响.结果表明,随着壁面温度的提升,液滴蒸发的速度更快,脱离壁面的时刻越早,脱离壁面时的速度也越大... 详细信息

采用分子动力学的方法对纳米液滴撞击高温平板壁面产生的Leidenfrost现象进行了探究,分析了液滴撞击不同温度壁面对Leidenfrost现象的影响.结果表明,随着壁面温度的提升,液滴蒸发的速度更快,脱离壁面的时刻越早,脱离壁面时的速度也越大,最终悬浮时液滴体积也越大.通过分析脱离壁面前一时刻液滴内部的密度、温度分布发现,由于高温壁面具有更高的热通量致使蒸发过程更快进而产生更厚的蒸气层,该蒸气层将阻碍换热,使得液滴在壁面温度更高时液滴内部的平均温度越低,且平均密度越小.

关键词：分子动力学液滴 Leidenfrost现象

全国民族运动会铸牢中华民族共同体意识的价值内涵与实践路径

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北方民族大学学报（哲学社会科学版） 2024年第3期 98-105页

作者：黑生林北方民族大学体育学院宁夏银川750021

全国民族运动会的成功举办是党和国家立足国情,汲取历史滋养,将民族传统体育与民族工作相结合的具体实践。全国民族运动会已成为各民族交往交流交融历史事实的有效载体,成为促进民族团结、增强中华文化认同、传承中华优秀传统文化的重... 详细信息

全国民族运动会的成功举办是党和国家立足国情,汲取历史滋养,将民族传统体育与民族工作相结合的具体实践。全国民族运动会已成为各民族交往交流交融历史事实的有效载体,成为促进民族团结、增强中华文化认同、传承中华优秀传统文化的重要平台。进入新时代,全国民族运动会在培养社会主义核心价值观、构建民族传统体育传承体系、坚持“以人民为中心”、融入全民健身、推进乡村文明建设等诸多方面发挥着积极作用,为铸牢中华民族共同体意识提供实践路径。

关键词：全国民族运动会铸牢中华民族共同体意识民族团结各民族交往交流交融

中国特色高等教育治理体系现代化建设的内涵与路径

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黑龙江高教研究 2024年第3期 39-45页

作者：蒲蕊沈胜林华中师范大学黄冈师范学院

随着我国高等教育进入了新发展阶段，国家治理体系和治理能力现代化被进一步提上日程，高等教育治理体系现代化建设必须彰显中国特色。中国特色高等教育治理体系现代化的基本内涵表现在坚持和加强党的全面领导、秉持新发展理念、以人民... 详细信息

随着我国高等教育进入了新发展阶段，国家治理体系和治理能力现代化被进一步提上日程，高等教育治理体系现代化建设必须彰显中国特色。中国特色高等教育治理体系现代化的基本内涵表现在坚持和加强党的全面领导、秉持新发展理念、以人民为中心的价值取向、以立德树人为终极目标。推进中国特色高等教育治理体系现代化建设，必须确保党在高等教育治理中的核心领导地位，以新发展理念引领高等教育治理新发展，确立以人民为中心的高等教育治理体系改革导向，优化高等教育治理的权责配置，以现代信息技术手段创新高等教育治理方式。

关键词：高等教育治理体系现代化中国特色高质量发展内涵与路径