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Spontaneous grain refinement effect of rare earth zinc alloy anodes enables stable zinc batteries

National Science Review 2024年第07期 252-262页

作者： Manjing Chen Yuxiang Gong Yunxiang Zhao yexin song Yan Tang Zhiyuan Zeng Shuquan Liang Peng Zhou Bingan Lu Xiaotan Zhang Jiang Zhou School of Materials Science&Engineering Hunan Provincial Key Laboratory of Electronic Packaging and Advanced Functional MaterialsCentral South University Institute of Materials Research Tsinghua Shenzhen International Graduate School Tsinghua University Department of Materials Science and Engineering City University of Hong Kong Hunan Provincial Key Defense Laboratory of High Temperature Wear-Resisting Materials and Preparation Technology Hunan University of Science and Technology School of Physics and Electronics Hunan University School of Chemistry and Materials Science University of Science and Technology of China Suzhou Institute for Advanced Research University of Science and Technology of China

Irreversible interfacial reactions at the anodes pose a significant challenge to the long-term stability and lifespan of zinc（Zn） metal batteries, impeding their practical application as energy storage devices. The plating and stripping behavior of Zn ions on polycrystalline surfaces is inherently influenced by the microscopic structure of Zn anodes, a comprehensive understanding of which is crucial but often overlooked. Herein, commercial Zn foils were remodeled through the incorporation of cerium（Ce）elements via the ‘pinning effect’ during the electrodeposition process. By leveraging the electron-donating effect of Ce atoms segregated at grain boundaries（GBs）, the electronic configuration of Zn is restructured to increase active sites for Zn nucleation. This facilitates continuous nucleation throughout the growth stage,leading to a high-rate instantaneous-progressive composite nucleation model that achieves a spatially uniform distribution of Zn nuclei and induces spontaneous grain refinement. Moreover, the incorporation of Ce elements elevates the site energy of GBs, mitigating detrimental parasitic reactions by enhancing the GB stability. Consequently, the remodeled ZnCe electrode exhibits highly reversible Zn plating/stripping with an accumulated capacity of up to 4.0 Ah cm-2in a Zn symmetric cell over 4000 h without short-circuit behavior. Notably, a ～0.4 Ah Zn||NH4V4O10pouch cell runs over 110 cycles with 83% capacity retention with the high-areal-loading cathode(≈20 mg cm-2). This refining-grains strategy offers new insights into designing dendrite-free metal anodes in rechargeable batteries.

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The Application of Grey System Theory Combined with Fuzzy Reasoning in High Order Nonlinear Control System

The Application of Grey System Theory Combined with Fuzzy Re...

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2001 International Conferences on Info-tech and Info-net

作者： Zhang Shuhong Chen Mianyun song yexin Department of Control Science and Engineering Huazhong University of Science and Technology

ISBN: (纸本)0780370104;9780780370104

＜正＞The system with partial unknown structure,parameters,and characteristics is called a grey system. The grey system theory can be employed to improve the control performance of a system without sufficient information or with highly nonlinear *** this paper,grey system theory is introduced into sliding mode control of high order nonlinear system and a novel grey fuzzy sliding mode controller is *** this controller design,grey prediction model combined with fuzzy reasoning is proposed to obtain sliding mode control *** controller can drive the state from an arbitrary initial point of state to the origin along a sliding mode hyper plane quickly and reduce the vibration phenomenon that is caused by switching delay brought by system *** system theory is the efficient tool in the analysis and control of nonlinear,uncertain systems.

关键词： Grey System Theory Grey Fuzzy Sliding Mode Controller Fuzzy Reasoning Vibration

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具有失真认知信息的两层冲突环境建模与分析

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复杂系统与复杂性科学 2015年第1期12卷 70-73,84页

作者：宋业新袁昊劼李凌海军工程大学理学院武汉430033

针对具有失真认知的两层冲突环境,提出了一种基于两层递阶超对策的建模与分析方法。根据局中人之间策略集与结局偏好上的认知信息,将单方上、下两层局中人与对方局中人之间的冲突分别描述为一个超对策和多个双矩阵对策,构建面向两层冲... 详细信息

针对具有失真认知的两层冲突环境,提出了一种基于两层递阶超对策的建模与分析方法。根据局中人之间策略集与结局偏好上的认知信息,将单方上、下两层局中人与对方局中人之间的冲突分别描述为一个超对策和多个双矩阵对策,构建面向两层冲突环境的两层递阶超对策模型。给出了两层递阶超对策模型递阶超纳什均衡的定义,探讨了递阶超纳什均衡存在的条件及求解分析方法。最后,一个例子说明了模型与方法的实用性和有效性。

关键词：递阶超对策两层冲突环境均衡结局认知信息

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Fuzzy MCDM Based on Fuzzy Relational Degree Analysis

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Journal of Systems Engineering and Electronics 2002年第1期13卷 1-7页

作者： song yexin Dept. of Basic Courses, Naval University of Engineering, Wuhan 430033,P.R.China Chen Mianyun Dept. of Control Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074,P.R.China Dept. of Basic Courses Naval University of Engineering Wuhan 430033 P. R. China Dept. of Control Science and Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China

This paper presents a new fuzzy multiple criteria (both qualitative and quantitative) decision-making (MCDM) method based on fuzzy relational degree analysis. The concepts of fuzzy set theory are used to construct a weighted suitability decision matrix to evaluate the weighted suitability of different alternatives versus various criteria. The positive ideal solution and negative ideal solution are then obtained by using a method of ranking fuzzy numbers, and the fuzzy relational degrees of different alternative versus positive ideal solution and negative ideal solution are calculated by using the proposed arithmetic. Finally, the relative relational degrees of various alternatives versus positive ideal solution are ranked to determine the best alternative. A numerical example is provided to illustrate the proposed method.

关键词： Fuzzy sets Management science Matrix algebra Systems engineering

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具有模糊信息的多目标系统解模糊决策方法

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系统工程与电子技术 2001年第3期23卷 37-39页

作者：宋业新陈绵云吴晓平华中理工大学控制科学与工程系武汉430074 海军工程大学基础部武汉430033

对于具有模糊信息的多目标系统提出了一种模糊多目标决策方法。首先利用专家意见通过模糊算法集结各方案的模糊综合评价值 ,然后改变传统方法中对模糊数进行排序的做法 ,利用一种解模糊算法 ,直接对模糊综合评价值实行解模糊来进行方案... 详细信息

对于具有模糊信息的多目标系统提出了一种模糊多目标决策方法。首先利用专家意见通过模糊算法集结各方案的模糊综合评价值 ,然后改变传统方法中对模糊数进行排序的做法 ,利用一种解模糊算法 ,直接对模糊综合评价值实行解模糊来进行方案优选 ,方法直观、简单 ,易于实现。

关键词：多目标决策综合评价法模糊信息多目标系统模糊决策

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An Automatic System of Vehicle Number-Plate Recognition Based on Neural Networks

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Journal of Systems Engineering and Electronics 2001年第2期12卷 63-72页

作者： Wei Wu Dept. of Road and Traffic Engineering, Changsha Communications University, 410076, P. R. China Huang Xinhan, Wang Min & song yexin Dept. of Control Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China Dept. of Road and Traffic Engineering Changsha Communications University 410076 P. R. China Dept. of Control Science and Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China

This paper presents an automatic system of vehicle number-plate recognition based on neural networks. In this system, location of number-plate and recognition of characters in number-plate can be automatically completed. Pixel colors of Number-plate area are classified using neural network, then color features are extracted by analyzing scanning lines of the cross-section of number-plate. It takes full use of number-plate color features to locate number-plate. Characters in number-plate can be effectively recognized using the neural networks. Experimental results show that the correct rate of number-plate location is close to 100%, and the time of number-plate location is less than 1 second. Moreover, recognition rate of characters is improved due to the known number-plate type. It is also observed that this system is not sensitive to variations of weather, illumination and vehicle speed. In addition, and also the size of number-plate need not to be known in prior. This system is of crucial significance to apply and spread the automatic system of vehicle number-plate recognition.

关键词： Cameras Charge coupled devices Feature extraction Neural networks Vehicles

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基于双种群优化算法的舰载无人机任务规划

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运筹与管理 2023年第4期32卷 1-7页

作者：乐健驿宋业新陈洋海军工程大学湖北武汉430033

多舰载无人机协同对海上目标攻击的任务规划是有效提高无人机海上作战能力的关键技术之一。不同于陆基起降平台,舰载无人机的起降平台为复杂海洋环境下的移动平台。针对这一特点,考虑了舰载无人机起降场为存在时间窗口约束的移动起降场... 详细信息

多舰载无人机协同对海上目标攻击的任务规划是有效提高无人机海上作战能力的关键技术之一。不同于陆基起降平台,舰载无人机的起降平台为复杂海洋环境下的移动平台。针对这一特点,考虑了舰载无人机起降场为存在时间窗口约束的移动起降场、完成任务所需空中时间以及生存威胁等各方面因素,以攻击收益最高、无人机损毁最小为目标建立了多目标任务规划模型,并给出了双种群优化算法对其进行求解。通过与经典的NSGA-2、SPEA2等多目标优化算法进行对比,仿真结果表明该方法是可行、有效的。

关键词：舰载无人机双种群优化算法任务规划

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两类多目标广义指派问题的有效算法及其应用

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华中科技大学学报（自然科学版） 2001年第1期29卷 70-72页

作者：宋业新陈绵云张曙红华中科技大学控制科学与工程系

讨论了两类多目标广义指派问题 ,给出了它们的多目标整数线性规划数学模型 ,并结合模糊理论与解决传统指派问题的匈牙利算法提出了一种新的求解算法———模糊匈牙利法 .给出了该方法在物资供应中的应用 .

关键词：广义指派问题模糊隶属度模糊匈牙利法多目标整数线性规划数学模型管理决策

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The Persistence and Zonal Scale of Atmospheric Dipolar Modes

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Advances in Atmospheric Sciences 2024年第3期41卷 478-492页

作者： Jie song State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG) Institute of Atmospheric Physics(IAP)Chinese Academy of SciencesBeijing 100029China

This study investigates the relationship between the persistence and the zonal scale of atmospheric dipolar modes(DMs). Results from the daily data of ERA5 and the long-term output of an idealized atmospheric model show that the atmospheric DMs with a broader(narrower) zonal scale dipolar structure possess a longer(shorter) persistence. A detailed vorticity budget analysis indicates that the persistence of a hemispheric-scale DM(1/1 DM) and a regional or sectoral DM(1/8 DM) in the model both largely rely on the persistence of the nonlinear eddy forcing. Linear terms can indirectly reduce the persistence of the anomalous nonlinear eddy forcing in a 1/8 DM by modifying the baroclinicity via the arousal of anomalous vertical motions. Therefore, the atmospheric DMs with a broader(narrower) zonal scale possess a longer(shorter) persistence because the effects of the linear terms are less(more) pronounced when the atmospheric DMs have better(worse) zonal symmetry. Further analyses show that the positive eddy feedback effect is weak or even absent in a 1/8DM and the high-frequency eddy forcing acts more like a concomitant phenomenon rather than a leading driving factor for a 1/8 DM. Thus, the hemispheric-scale DM and the regional or sectoral DMs are different, not only in their persistence but also in their dynamics.

关键词： NAM NAO eddy feedback persistence linear term

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Identification of Linear Systems Using Binary Sensors with Random Thresholds

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Journal of Systems Science & Complexity 2024年第3期37卷 907-923页

作者： HUANG Zhiyong song Qijiang School of Mathematics Renmin University of ChinaBeijing 100872China School of Mathematics Sino-French InstituteRenmin University of ChinaBeijing 100872China

In this paper,the problem of identifying autoregressive-moving-average systems under random threshold binary-valued output measurements is *** the help of stochastic approximation algorithms with expanding truncations,the authors give the recursive estimates for the parameters of both the linear system and the binary *** reasonable conditions,all constructed estimates are proved to be convergent to the true values with probability one,and the convergence rates are also established.A simulation example is provided to justify the theoretical results.

关键词： α-mixing binary sensor quantized system stochastic approximation stochastic thresh-old strongly consistent system identification

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