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Multi-model ensemble learning for battery state-of-health estimation:Recent advances and perspectives

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Journal of Energy Chemistry 2025年第1期100卷 739-759页

作者： Chuanping Lin Jun Xu Delong Jiang Jiayang hou Ying Liang Zhongyue Zou Xuesong mei State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Shaanxi Key Laboratory of Intelligent Robots School of Mechanical Engineering Xi'an Jiaotong University Department of Electrical Engineering and Automation Luoyang Institute of Science and Technology School of Mechanical Engineering Hangzhou Dianzi University

The burgeoning market for lithium-ion batteries has stimulated a growing need for more reliable battery performance monitoring. Accurate state-of-health(SOH) estimation is critical for ensuring battery operational performance. Despite numerous data-driven methods reported in existing research for battery SOH estimation, these methods often exhibit inconsistent performance across different application scenarios. To address this issue and overcome the performance limitations of individual data-driven models,integrating multiple models for SOH estimation has received considerable attention. Ensemble learning(EL) typically leverages the strengths of multiple base models to achieve more robust and accurate outputs. However, the lack of a clear review of current research hinders the further development of ensemble methods in SOH estimation. Therefore, this paper comprehensively reviews multi-model ensemble learning methods for battery SOH estimation. First, existing ensemble methods are systematically categorized into 6 classes based on their combination strategies. Different realizations and underlying connections are meticulously analyzed for each category of EL methods, highlighting distinctions, innovations, and typical applications. Subsequently, these ensemble methods are comprehensively compared in terms of base models, combination strategies, and publication trends. Evaluations across 6 dimensions underscore the outstanding performance of stacking-based ensemble methods. Following this, these ensemble methods are further inspected from the perspectives of weighted ensemble and diversity, aiming to inspire potential approaches for enhancing ensemble performance. Moreover, addressing challenges such as base model selection, measuring model robustness and uncertainty, and interpretability of ensemble models in practical applications is emphasized. Finally, future research prospects are outlined, specifically noting that deep learning ensemble is poised to advance ens

关键词： Contrastive Learning

Interfacial Zn2+-solvation regulator towards reversible and stable Zn anode

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Journal of Energy Chemistry 2025年第1期100卷 684-692页

作者： Miao Zhou Xiongbin Luo Hang Li shan Guo Zhuang Tong Xiaotao Zhou Xu Li Zhaohui hou Shuquan Liang Guozhao Fang College of Mechanical Engineering Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials Hunan Institute of Science and Technology School of Materials Science and Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province Central South University College of Materials and Metallurgy Guizhou University National Energy Metal Resources and New Materials Key Laboratory Central South University

Aqueous zinc-ion batteries （AZIBs） are fundamentally challenged by the instability of the electrode/electrolyte interface,predominantly due to irreversible zinc （Zn） deposition and hydrogen ***,the intricate mechanisms behind the electrochemical discrepancies induced by interfacial Zn2+-solvation and deposition behavior demand comprehensive *** molecules endowed with special functional groups （such as hydroxyl,carboxyl,etc.） have the potential to significantly optimize the solvation structure of Zn2+and regulate the interfacial electric double layer （EDL）.By increasing nucleation overpotential and decreasing interfacial free energy,these functional groups facilitate a lower critical nucleation radius,thereby forming an asymptotic nucleation model to promote uniform Zn ***,this study presents a pioneering approach by introducing trace amounts of n-butanol as solvation regulators to engineer the homogenized Zn （H-Zn） anode with a uniform and dense *** interfacial reaction and structure evolution are explored by in/ex-situ experimental techniques,indicating that the H-Zn anode exhibits dendrite-free growth,no by-products,and weak hydrogen evolution,in sharp contrast to the bare ***,the H-Zn anode achieves a remarkable Zn utilization rate of approximately 20% and simultaneously sustains a prolonged cycle life exceeding 500 ***,the H-Zn//NH4V4O10（NVO） full battery showcases exceptional cycle stability,retaining 95.04%capacity retention after 400 cycles at a large current density of 5 A *** study enlightens solvation-regulated additives to develop Zn anode with superior utilization efficiency and extended operational lifespan.

关键词： Solvation

Establishing a new testing protocol of the electrochemical stability window for electric double-layer capacitors

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Science China Chemistry 2025年第01期 217-225页

作者： Ruilin hou Xiaoxi Zhao Tingting Liang Qingyun Dou shan Xu Xingbin Yan School of Materials Science and Engineering Sun Yat-sen University Laboratory of Clean Energy Chemistry and Materials Lanzhou Institute of Chemical Physics Chinese Academy of Sciences College of Engineering and Applied Sciences Nanjing University Center of Industrial Analysis and Testing Guangdong Academy of Science

The electrochemical stability window(ESW) is crucial for determining the energy density of electric double-layer capacitors(EDLCs). However, current ESW testing protocols of EDLCs are strongly affected by artificial factors, thereby leading to unreliable result. To solve this problem, we first identify the key shortcomings of the traditional protocols by analyzing their test principles. Subsequently, taking an aqueous carbon-based EDLC as an example, we design a side reaction descriptor to represent the response difference in the charging capacitance to side reactions between the cyclic voltammetry and galvanostatic chargedischarge methods. With the aid of this descriptor, we propose a new ESW testing protocol, which is not only able to completely avoid the adverse influence of subjective factors but also fully consider the operating condition limitations. The protocol can be extended from the single electrode to the full device. This work proposes a more rigorous definition of ESW and provides a reliable protocol for evaluating the ESW of EDLCs.

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从教学技能掌握到教学素养发展:新时代好教师的核心追求

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黑龙江高教研究 2025年第1期43卷 22-30页

作者：单妍李志厚广东药科大学广东广州510006 广州华商学院广东广州511300 华南师范大学广东广州510631

教学素养是教育者经过专业学习和课堂教学实践培养和磨炼之后所表现出来的专业化教学素质与涵养,是教师专业所特有的内在素质和外在表现。它与教学技能、教学能力不同,在其基础上还包括教育信念、专业知能、教学眼光、通化意识、教育思... 详细信息

教学素养是教育者经过专业学习和课堂教学实践培养和磨炼之后所表现出来的专业化教学素质与涵养,是教师专业所特有的内在素质和外在表现。它与教学技能、教学能力不同,在其基础上还包括教育信念、专业知能、教学眼光、通化意识、教育思维、创新追求以及教育家精神等方面的素养。通过对教学素养与教学技能、教学能力异同的比较分析,探讨教育者教学素养发展的影响因素、形成条件、发展机制及其相关的问题,为有效促进新时代教师教学素养的发展以及新质教育力的探索提供有力参考。

关键词：教学技能教学能力教学素养教学创新新质教育力通化意识

新型抗癫痫发作药物吡仑帕奈添加治疗0~18岁儿童难治性癫痫的临床观察研究

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中国全科医学 2025年第2期28卷 250-256页

作者：马湖萍任蓉侯梅苑爱云青岛大学附属妇女儿童医院神经康复科山东省青岛市266034 山东省潍坊市寿光市人民医院新生儿科 262700

背景目前儿童难治性癫痫(RE)仍是癫痫的治疗难点,国内吡仑帕奈(PER)治疗儿童RE尚属新药,缺少PER对儿童RE添加治疗的建议,且国内报道中使用PER治疗的RE患儿样本量较少。因此PER对于儿童RE,尤其低年龄RE患儿的疗效仍需大样本、进一步研究... 详细信息

背景目前儿童难治性癫痫(RE)仍是癫痫的治疗难点,国内吡仑帕奈(PER)治疗儿童RE尚属新药,缺少PER对儿童RE添加治疗的建议,且国内报道中使用PER治疗的RE患儿样本量较少。因此PER对于儿童RE,尤其低年龄RE患儿的疗效仍需大样本、进一步研究。目的探究PER添加治疗儿童RE的疗效、可能的适应证、不良反应及耐受性。方法对2022年1月—2023年1月在青岛大学附属妇女儿童医院诊治的0~18岁RE患儿进行自身对照、回顾性分析,对比PER添加治疗前后不同观察时点的癫痫发作频率的变化,评估PER的治疗效果,记录药物不良反应及药物保留率,并分析PER有效组与无效组的临床特征。结果共纳入192例研究对象,PER添加治疗后,第12、24、36周的有效率分别为56.3%(108/192)、62.1%(113/182)、69.7%(122/175),无发作率分别为19.3%(37/192)、21.4%(39/182)、24.6%(43/175)。不良反应发生率为16.1%(31/192),主要为头晕、暴躁易怒、无力嗜睡等,末次随访药物保留率为91.1%(175/192)。PER添加治疗的RE患儿连续用药12周时,治疗总有效与无效/恶化患儿起病年龄、抗癫痫治疗病程、起源类型、发作形式、添加PER前发作频率、联合其他抗癫痫发作药物(ASMs)数量、生酮饮食/外科治疗情况,差异有统计学意义(P<0.05)。此外,178例患儿进行了脑电图检查,167例患儿进行了头颅磁共振检查;治疗总有效与无效/恶化患儿脑电图检查结果、头颅磁共振检查结果比较,差异有统计学意义(P<0.05)。脑电图检查结果中以脑前部(前、中、颞前、中部)放电总有效占比较高;头颅影像学检查结果中以正常者总有效占比较高,其次为以脑白质损伤为主的患儿。结论PER添加治疗儿童RE整体有效率及保留率较高,不良反应轻微,药物耐受情况好。对于起病年龄晚、发作形式为运动性发作、局灶性起源、抗癫痫治疗病程短、联合用药数量及发作频率少的RE患儿更为有效。脑电图中以脑前部(前、中、颞前、颞中部)放电、头颅磁共振结果正常者总有效占比较高。

关键词：难治性癫痫儿童吡仑帕奈治疗结果药物不良反应

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FULL DISCRETE TWO-LEVEL CORRECTION SCHEME FOR NAVIER-STOKES EQUATIONS

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Journal of Computational Mathematics 2008年第2期26卷 209-226页

作者： Yanren hou Liquan mei College of Science Xi'an Jiaotong University Xi'an 710049 China

In this paper, a full discrete two-level scheme for the unsteady Navier-Stokes equations based on a time dependent projection approach is proposed. In the sense of the new projection and its related space splitting, non-linearity is treated only on the coarse level subspace at each time step by solving exactly the standard Galerkin equation while a linear equation has to be solved on the fine level subspace to get the final approximation at this time step. Thus, it is a two-level based correction scheme for the standard Galerkin approximation. Stability and error estimate for this scheme are investigated in the paper.

关键词： Two-level method Galerkin approximation Correction Navier-Stokes equation

Herbivore and native plant diversity synergistically resist alien plant invasion regardless of nutrient conditions

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Plant Diversity 2024年第5期46卷 640-647页

作者： Liping shan Meng hou Key Laboratory of Wetland Ecology and Environment State Key Laboratory of Black Soils Conservation and UtilizationNortheast Institute of Geography and AgroecologyChinese Academy of SciencesChangchun 130102China

Alien plant invasion success can be inhibited by two key biotic factors:native herbivores and plant ***,few studies have experimentally tested whether these factors interact to synergistically resist invasion success,especially factoring in changing global environments(*** enrichment).Here we tested how the synergy between native herbivores and plant diversity affects alien plant invasion success in various nutrient *** this purpose,we exposed alien plant species in potmesocosms to different levels of native plant diversity(4 vs.8 species),native generalist herbivores,and high and low soil nutrient *** found that generalist herbivores preferred alien plants to native plants,inhibiting invasion success in a native *** inhibition was amplified by highly diverse native ***,the amplified effect between herbivory and native plant diversity was independent of nutrient *** results suggest that a higher diversity of native communities can strengthen the resistance of native generalist herbivores to alien plant invasions by enhancing herbivory *** synergistic effect remains in force in nutrient-enriched habitats that are always invaded by alien plant *** results shed light on the effective control of plant invasions using multi-trophic means,even in the face of future global changes.

关键词： Biological invasion Biotic resistance Diversity conservation Plant-herbivore interactions Resource availability Global change

Dissolution and diffusion of TiO_2 in the CaO-Al_2O_3-SiO_2 slag

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International Journal of Minerals,Metallurgy and Materials 2014年第4期21卷 345-352页

作者： Zhong-shan Ren Xiao-jun Hu Xin-mei hou Xiang-xin Xue Kuo-chih Chou State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing School of Metallurgical and Ecological Engineering University of Science and Technology Beijing School of Materials and Metallurgy Northeastern University

The dissolution of TiO2 in the CaO-Al2O3-SiO2 slag under static conditions was studied in the temperature range from 1643 K to 1703 K. After TiO2 dissolved, the microstructure of the interface between TiO2 and the slag was observed by scanning electron microscopy, and the concentration profiles of Ti4＋and other ions across the TiO2/slag interfaces were analyzed by energy-dispersive X-ray spectroscopy. On the basis of these results, the dissolution behavior of TiO2 was evaluated, and the diffusivity of Ti4＋in the bulk slag was estimated. Ac-cording to the Stokes-Einstein relation, the viscosity calculated by a previously reported model gave a diffusivity of Ti4＋ions greater than that estimated by the concentration profiles of Ti4＋ions. The mechanism of TiO2 dissolution in the CaO-Al2O3-SiO2 slag is discussed in de-tail.

关键词： slags titanium dioxide dissolution diffusion interface

Asymptotic Behavior of Solutions of a Free Boundary Problem Modeling Multi-layer Tumor Growth in Presence of Inhibitor

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Acta Mathematica Sinica,English Series 2011年第8期27卷 1621-1636页

作者： Xiu mei hou Wuhan Bioengineering Institute Wuhan 430415 P. R. China Department of Mathematics Sun Yat-Sen University Guangzhou 510275 P. R. China

In this paper we study well-posedness and asymptotic behavior of solution of a free boundary problem modeling the growth of multi-layer tumors under the action of an external inhibitor. We first prove that this problem is locally well-posed i[n little H61der spaces. Next we investigate asymptotic behavior of the solution. By computing the spectrum of the linearized problem and using the linearized stability theorem, we give the rigorous analysis of stability and instability of all stationary fiat solutions under the non-fiat perturbations. The method used in proving these results is first to reduce the free boundary problem to a differential equation in a Banach space, and next use the abstract well-posedness and geometric theory for parabolic differential equations in Banach spaces to make the analysis.

关键词： Free boundary problem multi-layer tumor inhibitor well-posedness asymptotic behavior