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MOF and its derivative materials modified lithium-sulfur battery separator:a new means to improve performance

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Rare Metals 2024年第6期43卷 2418-2443页

作者： Rong-Wei Huang Yong-Qi Wang dan you Wen-Hao Yang Bin-Nan Deng Fei Wang Yue-Jin Zeng Yi-Yong Zhang Xue Li National Local Joint Engineering Research Center for Lithium-Ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Batteries Materials of Yunnan ProvinceFaculty of Metallurgical and Energy EngineeringKunming University of Science and TechnologyKunming 650093China State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Centre of Chemistry for Energy MaterialsState-Province Joint Engineering Laboratory of Power Source Technology for New Energy VehicleEngineering Research Center of Electrochemical TechnologyMinistry of EducationCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China

In recent years,lithium-sulfur batteries(LSBs)are considered as one of the most promising new generation energies with the advantages of high theoretical speeific capacity of sulfur(1675 mAh·g^(-1)),abundant sulfur resources,and environmental friendliness storage technologies,and they are receiving wide attention from the ***,the problems of the shuttle effect and lithium dendrite growth in LSBs have limited their practical application,so there is a need to find ways to solve these *** is an excellent choice to use novel materials to modify battery *** those novel materials,the metal-organic framework(MOF)has the properties of regular pores and controllable *** applied as a positive electrode and diaphragm,it can restrain the shuttle effect and lithium dendrite growth,especially since it shows excellent performance in diaphragm ***,various design strategies and synthesis methods of MOF-modified separators are reviewed in this paper,and the applications of MOF in LSBs separators in different forms are introduced,including the composite of MOF and carbon-based materials,the compounding of MOF and polymer,self-carbonization to form MOF-derived *** the same time,different characterization techniques are systematically reviewed to obtain the physical and chemical properties of MOF particles and the working mechanism of MOF-modified diaphragm,which provides a basis for further research in this ***,some future research trends and directions are put forward to fully tap the future commercial potential of MOF-modified diaphragm in LSBs.

关键词： MOF Lithium-sulfur battery Modified diaphragms Design strategies Prospect Characterization

Heterostructure:application of absorption-catalytic center in lithium-sulfur batteries

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Rare Metals 2024年第4期43卷 1461-1487页

作者： Fei Wang Chun-Man Yang Yong-Qi Wang dan you Wen-Hao Yang Rong-Wei Huang Ji-Yue Hou Qian Wang Ying-Jie Zhang Ying Wang Yue-Jing Zeng Yi-Yong Zhang Xue Li National Local Joint Engineering Research Center for Lithium-Ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Batteries Materials of Yunnan ProvinceFaculty of Metallurgical and Energy EngineeringKunming University of Science and TechnologyKunming650093China College of Electrical Information Engineering Panzhihua UniversityPanzhihua617000China State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Centre of Chemistry for Energy MaterialsState-Province Joint Engineering Laboratory of Power Source Technology for New Energy VehicleEngineering Research Center of Electrochemical TechnologyMinistry of EducationCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China

Due to the high theoretical specific capacity(1675 mAh·g^(-1)),low cost,and high safety of the sulfur cathodes,they are expected to be one of the most promising rivals for a new generation of energy storage ***,the shuttle effect,low conductivity of sulfur and its discharge products,volume expansion,and other factors hinder the commercialization of lithium-sulfur batteries(LSBs).The development of sulfur-fixing materials and the design of multifunctional materials to enhance the electrochemical performance of LSBs have been the main research priorities in recent *** of the advantages of high conductivity,built-in electric field,and good synergism,more and more researchers have employed heterostructure into sulfur-fixing materials to enhance the catalytic and absorption ability for *** this review,the principle of heterostructure and the mechanism of enhancing the performance of lithium-sulfur batteries are *** applications of heterostructure in cathode and interlayer of LSBs in the latest years are ***,the cutting-edge troubles and possibilities of heterostructures in LSBs are briefly presented.

关键词： Lithium-sulfur batteries(LSBs) Heterostructure Built-in electric field Catalytic Absorption

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我国网络舆情情感研究综述

电脑与电信 2024年第3期 60-64页

作者：游丹丹骆绍烨莆田学院新工科产业学院福建莆田351100

随着互联网和社交媒体的普及,网络舆情对社会层面的影响不容小觑,网络舆情情感分析更是重中之重。通过收集、整理和归纳我国网络舆情情感研究的学术成果,采用文献计量学分析文献发表数量、高频关键词共现以及主题演进,再遵循网络舆情情... 详细信息

随着互联网和社交媒体的普及,网络舆情对社会层面的影响不容小觑,网络舆情情感分析更是重中之重。通过收集、整理和归纳我国网络舆情情感研究的学术成果,采用文献计量学分析文献发表数量、高频关键词共现以及主题演进,再遵循网络舆情情感研究过程,分析数据采集、数据处理、情感识别(分类/倾向性)以及情感演化方面的主要研究内容、思想和方法。最后对该研究方向进行展望,以期为未来研究提供参考。

关键词：网络舆情情感识别情感演化

Computation of Minimal Siphons in Petri Nets Using Problem Partitioning Approaches

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IEEE/CAA Journal of Automatica Sinica 2022年第2期9卷 329-338页

作者： dan you Oussama Karoui Shouguang Wang IEEE School of Information and Electronic Engineering(Sussex Artificial Intelligence Institute) Zhejiang Gongshang UniversityHangzhou 310018China

A large amount of research has shown the vitality of siphon enumeration in the analysis and control of deadlocks in various resource-allocation systems modeled by Petri nets(PNs).In this paper,we propose an algorithm for the enumeration of minimal siphons in PN based on problem *** proposed algorithm is an improved version of the global partitioning minimal-siphon enumeration(GPMSE)proposed by Cordone et al.(2005)in IEEE Transactions on Systems,Man,and Cybernetics-Part A:Systems and Humans,which is widely used in the literature to compute minimal *** experimental results show that the proposed algorithm consumes lower computational time and memory compared with GPMSE,which becomes more evident when the size of the handled net grows.

关键词： Index Terms-Petri nets(PNs) problem decomposition resource-allocation systems siphons

基于网络效率的城市轨道交通网络抗震韧性评估

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清华大学学报（自然科学版） 2024年第3期64卷 509-519页

作者：侯本伟游丹范世杰许成顺钟紫蓝北京工业大学城市建设学部北京100124

该文基于震后轨道交通网络主体结构的破坏场景,以恢复震后通行能力为目标,分析了地震灾害作用下城市轨道交通网络的韧性。采用Space L方法构建轨道交通网络模型,选用客流加权的网络平均效率表示网络连通性能。采用地震易损性模型计算网... 详细信息

该文基于震后轨道交通网络主体结构的破坏场景,以恢复震后通行能力为目标,分析了地震灾害作用下城市轨道交通网络的韧性。采用Space L方法构建轨道交通网络模型,选用客流加权的网络平均效率表示网络连通性能。采用地震易损性模型计算网络主要结构单元(车站、隧道和桥梁)的破坏概率,采用Monte Carlo方法模拟网络主体结构单元的震后状态;考虑破坏单元修复时间存在不确定性,模拟了破坏单元的震后修复过程;根据震后不同时刻网络性能曲线和韧性三角形,定量化评估轨道交通网络抗震韧性指数和韧性损失。以北京地区城市轨道交通网络为例,分析了地震烈度、恢复策略和修复队伍数量对网络连通性能、恢复过程和韧性指标的影响。结果表明:轨道交通网络在遭受地震破坏、蓄意攻击和随机破坏后的韧性特征存在差异;震前提升少量重要单元的可靠度可提升网络灾前抵抗能力,但对网络灾后恢复能力和韧性指数的提升效果不明显。该研究可为城市轨道交通系统抗震安全性评估提供理论支撑和参考。

关键词：城市轨道交通网络地震灾害网络效率震后恢复韧性评估

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长江经济带土地绿色利用效率测度及演变特征研究

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价值工程 2024年第1期43卷 43-45页

作者：游丹蔡乙萍冯成伟成都信息工程大学成都610100

土地绿色利用是实现经济高质量发展与生态环境协调的关键发力点之一。利用非期望产出超效率SBM模型与Malmquist指数模型对2007-2021年长江经济带土地绿色利用效率进行测度,研究发现:2007-2021年长江经济带效率波动平缓,均值为0.81,总体... 详细信息

土地绿色利用是实现经济高质量发展与生态环境协调的关键发力点之一。利用非期望产出超效率SBM模型与Malmquist指数模型对2007-2021年长江经济带土地绿色利用效率进行测度,研究发现:2007-2021年长江经济带效率波动平缓,均值为0.81,总体呈上升趋势,区域呈“下游>中游>上游”局面;样本期内,长江经济带效率平均提高了9.6%,中游地区效率提升明显,湖北省增长幅度最高,贵州省较低。应实施地区土地利用差异化管理,增强区域间协作,实现各区域优势互补。

关键词：长江经济带土地绿色利用效率超效率SBM模型 DEA-Malmquist

Non-Deterministic Liveness-Enforcing Supervisor Tolerant to Sensor-Reading Modification Attacks

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KSKV:Key-Strategy for Key-Value Data Collection with Local Differential Privacy

自动化学报（英文版） 2024年第1期

作者： dan you Shouguang Wang

来源：博看期刊评论

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Computer Modeling in Engineering & Sciences 2024年第6期139卷 3063-3083页

作者： dan Zhao Yang you Chuanwen Luo Ting Chen Yang Liu Artificial Intelligence Development Research Center Institute of Scientific and Technical Information of ChinaBeijing100038China Industry Development Department NSFOCUS Inc.BeijingChina School of Information Science and Technology Beijing Forestry UniversityBeijing100083China School of Computer Science and Engineering University of Electronic Science and Technology of ChinaChengdu610054China Institute of Computing Technology China Academy of Railway Sciences Corporation LimitedBeijing10081China

In recent years,the research field of data collection under local differential privacy(LDP)has expanded its focus fromelementary data types to includemore complex structural data,such as set-value and graph ***,our comprehensive review of existing literature reveals that there needs to be more studies that engage with key-value data *** studies would simultaneously collect the frequencies of keys and the mean of values associated with each ***,the allocation of the privacy budget between the frequencies of keys and the means of values for each key does not yield an optimal utility *** the importance of obtaining accurate key frequencies and mean estimations for key-value data collection,this paper presents a novel framework:the Key-Strategy Framework forKey-ValueDataCollection under ***,theKey-StrategyUnary Encoding(KS-UE)strategy is proposed within non-interactive frameworks for the purpose of privacy budget allocation to achieve precise key frequencies;subsequently,the Key-Strategy Generalized Randomized Response(KS-GRR)strategy is introduced for interactive frameworks to enhance the efficiency of collecting frequent keys through group-anditeration *** strategies are adapted for scenarios in which users possess either a single or multiple key-value ***,we demonstrate that the variance of KS-UE is lower than that of existing *** claims are substantiated through extensive experimental evaluation on real-world datasets,confirming the effectiveness and efficiency of the KS-UE and KS-GRR strategies.

关键词： Key-value local differential privacy frequency estimation mean estimation data perturbation

鲜食糯玉米新品种辽糯5号的选育及栽培技术要点

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辽宁农业科学 2024年第2期 89-90页

作者：于惠琳吴玉群尤丹于佳霖张洋辽宁省农业科学院玉米研究所辽宁沈阳110161

辽糯5号是辽宁省农业科学院玉米研究所以自选系S15C08为母本、自选系YN1为父本组配而成的优质糯玉米杂交种。该品种具有熟期适中、果穗大小均匀、鲜穗外观好、品质优良、糯性强、柔嫩性好、稳产、抗病抗倒、适应性广等特点,2022年8月通... 详细信息

辽糯5号是辽宁省农业科学院玉米研究所以自选系S15C08为母本、自选系YN1为父本组配而成的优质糯玉米杂交种。该品种具有熟期适中、果穗大小均匀、鲜穗外观好、品质优良、糯性强、柔嫩性好、稳产、抗病抗倒、适应性广等特点,2022年8月通过辽宁省农作物品种审定委员会审定(辽审玉20220247)。

关键词：糯玉米辽糯5号选育栽培技术