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Rare Metals 2020年第9期39卷 1082-1091页

作者： Yu-Yan Wang Zhi-Wei Zhao Yang Liu lin-rui hou Chang-Zhou Yuan School of Materials Science and Engineering University of JinanJinan 250022China

Recently,CoCO3 has attracted enormous attention as anodes for lithium-ion batteries(LIBs),benefiting from its high theoretical capacity and simple ***,the modest electronic conductivity and structural instability over cycling hinder its wider *** well address the intrinsic issues,we explored a precipitantfree hydrothermal methodology for mass production of spindle-like CoCO3/reduced graphene oxide(S-CoCO3/rGO)toward advanced LIBs as a hybrid *** dimethylformamide plays a significant role of"two birds(i.e.,solvent and precipitant)with one stone"in the formation of the S-CoCO3/rGO,greatly improving its practical *** purposeful introduction of rGO nanosheets as a two-dimensional flexible conductive network enhances the conductivity and stability of the *** is the structural and compositional merits for LIBs that endow the S-CoCO3/rGO with remarkable lithium-storage performance in terms of enhanced interfacial storage capacity,high-rate reversible capacities(803 mAh·g-1 at 2.0 A·g-1)and long-duration capacity retention of 82.1%over 2000 consecutive cycles at 2.0 A·*** significantly,the simple yet efficient avenue here promises enormous commercial prospect of the S-CoCO3/rGO in next-generation LIBs.

关键词： Spindle-like CoCO3 Reduced graphene oxide Precipitant-free synthesis Hybrid anodes Lithium-ion batteries

V_(2)CT_(x) MXene and its derivatives:synthesis and recent progress in electrochemical energy storage applications

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Rare Metals 2022年第3期41卷 775-797页

作者： Zhao-lin Tan Jing-Xuan Wei Yang Liu Fakhr uz Zaman Wajid Rehman lin-rui hou Chang-Zhou Yuan School of Materials Science and Engineering University of JinanJinan 250022China Department of Chemistry Hazara UniversityMansehra 21120Pakistan

With the continuous development of two-dimensional (2D) transition metal carbides and nitrides(collectively referred to as MXene).Nowadays,more than 70 MXene materials have been discovered,and the number is still *** them,the V_(2)CT_(x) MXene has attracted considerable attentions due to its outstanding physical and chemical *** this review,we mainly discussed the emerging V_(2)CT_(x) MXene and its derivative systems in various energy storage ***,an introduction of the V-based MXene and its derivatives along with their synthetic methodologies is provided,then we summarize their applications in specific energy storage devices,such as metal (Li,Na,K,Mg,Zn and Al) ion batteries,lithium-sulfur batteries,supercapacitors and metal-ion ***,the main challenges and future perspectives existing in V-based MXene and its derivatives are reasonably put forward.

关键词： MXene V_(2)CT_(x) Two-dimensional material Derivatives Electrochemical energy storage applications

Porous carbon nanofibers derived from low-softening-point coal pitch towards all-carbon potassium ion hybrid capacitors

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Rare Metals 2022年第11期41卷 3706-3716页

作者： Guang-Yuan Wang Xiao-Hong Wang Jin-Feng Sun Ya-Min Zhang lin-rui hou Chang-Zhou Yuan School of Materials Science and Engineering University of JinanJinan250022China

Potassium ion hybrid capacitors(PIHC)have promising applications in medium and large-scale energy storage systems due to their high energy/power density,abundant potassium resource and low ***,the slow kinetics of battery-type anodes originating from the large-size K+results in a mismatch between the two electrodes,rendering the modest energy density of ***,we first develop an electrospinning strategy to successfully synthesize fibrous precursor by using the HNO_(3)pre-oxidized low-softening-point coal pitch as the low-cost raw *** further carbonization or KOH activation,the two types of carbon nanofibers(CNF)are fabricated as anode and cathode materials,respectively,towards the dual-carbon PIHC *** to its threedimensional interconnected porous conducting network and large layer spacing,the resulted CNF anode material is endowed with high reversible capacities,excellent rate and long cycle ***,the activated CNF cathode with a large surface area of 2169 m^(2)·g^(-1)exhibits excellent capacitive performance.A PIHC constructed with the two fibrous electrodes delivers an energy density of110.0 Wh·kg^(-1)at 200.0 W kg^(-1),along with a capacitance retention of 83.5%after 10,000 cycles at 1.0 A·g^(-1).The contribution here provides a cost-efficiency avenue and platform for advanced dual-carbon PIHC.

关键词： Potassium ion hybrid capacitors(PIHC) Low-softening-point coal pitch Carbon nanofibers(CNF) Dual-carbon devices Long durability

Self-assemble construction of hetero-structured Co(OH)_(2)/MXene aerogel toward Li-S batteries as a self-supported host and bifunctional catalyst

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Rare Metals 2024年第11期43卷 5652-5663页

作者： Yang Liu Ke Tan Sen Liu Xu Zhang Mao-Qiang Shen Xue-Sen Liu Xin-Yue Gao lin-rui hou Chang-Zhou Yuan School of Materials Science&Engineering University of JinanJinan 250022China

The shuttling diffusion of polysulfides is a bottleneck that seriously limits the performance of Li-S *** construction of sulfur cathodes with reliable trapping ability of polysulfides is the key to overcome such ***,a hierarchical porous architecture,i.e.,Co(OH)_(2)sheets bonded Ti_3C_(2)T_x MXene aerogel(Co(OH)_(2)/MXA),is constructed via a facile selfassembled approach and used as an efficient free-standing polysulfides *** interconnected three-dimensional(3D)porous network with void space and strong interfacial interaction not only enables high sulfur loading but facilitates fast ion and electron *** and theoretical results confirm the hetero-framework exhibits outstanding immobilization and conversion ability for polysulfides due to its polar surface and bifunctional catalytic activities toward both formation and decomposition of *** optimized Co(OH)_(2)/MXA cathode delivers excellent rate capability(407 mAh·g^(-1)at 5C)with a sulfur loading of 2.7 mg·cm^(-2),and ultra-stable cycling performance as an extremely small capacity decay of~0.005%per cycle within 1700 cycles at 1C is achieved with a high sulfur loading of 6.7 mg·cm^(-2).More significantly,our design structural/componential methodology here promises the MXene-based aerogel electrodes for LiS batteries and beyond.

关键词： MXene aerogel Co(OH)_(2)sheets Hetero-architecture Self-standing hosts Li-S batteries

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： Lithium-ion battery State-of-health estimation Data-driven Machine learning Ensemble learning Ensemble diversity

Multi-layer multi-pass friction rolling additive manufacturing of Al alloy:Toward complex large-scale high-performance components

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 425-438页

作者： Haibin Liu Run hou Chenghao Wu ruishan Xie Shujun Chen College of Mechanical&Energy Engineering Beijing University of TechnologyBeijing 100124China Chongqing Research Institute of Beijing University of Technology Chongqing 401121China

At present,the emerging solid-phase friction-based additive manufacturing technology,including friction rolling additive man-ufacturing(FRAM),can only manufacture simple single-pass *** this study,multi-layer multi-pass FRAM-deposited alumin-um alloy samples were successfully prepared using a non-shoulder tool *** material flow behavior and microstructure of the over-lapped zone between adjacent layers and passes during multi-layer multi-pass FRAM deposition were studied using the hybrid 6061 and 5052 aluminum *** results showed that a mechanical interlocking structure was formed between the adjacent layers and the adja-cent passes in the overlapped center *** friction and rolling of the tool head led to different degrees of lateral flow and plastic deformation of the materials in the overlapped zone,which made the recrystallization degree in the left and right edge zones of the over-lapped zone the highest,followed by the overlapped center zone and the non-overlapped *** tensile strength of the overlapped zone exceeded 90%of that of the single-pass deposition *** is proved that although there are uneven grooves on the surface of the over-lapping area during multi-layer and multi-pass deposition,they can be filled by the flow of materials during the deposition of the next lay-er,thus ensuring the dense microstructure and excellent mechanical properties of the overlapping *** multi-layer multi-pass FRAM deposition overcomes the limitation of deposition width and lays the foundation for the future deposition of large-scale high-performance components.

关键词： aluminum alloy additive manufacturing solid-state friction stir welding multi-layer multi-pass

Platform Competition for Advertisers and Viewers in Media Markets with Endogenous Content and Advertising

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Journal of Systems Science and Systems Engineering 2020年第1期29卷 36-54页

作者： Xiaogang lin rui hou Yongwu Zhou School of Management Guangdong University of TechnologyGuangzhou 510520China School of Business Administration South China University of TechnologyGuangzhou 510641China

In this paper,we investigate two competing pay-tv platforms or free-to-air media platforms that consist of two groups of agents:viewers and *** pay-tv platforms can receive revenues from charging viewers pay-per-view prices and advertising,while the free-to-air platforms can only obtain all incomes from *** discuss and compare advertising intensities and program content provisions of the two competing media *** findings show that if the extent to which viewers dislike advertising(the nuisance for advertising)is more massive than the marginal benefit that advertisers receive from an additional viewer,the pay-tv stations tend to maximally differentiate their program content and charge the viewers higher pay-per-view *** the nuisance approaches to the marginal benefit,however,both stations should offer similar program content,and charge the viewers lower prices under certain ***,if both platforms provide duplicated content,they should subsidize the *** contrast,we show that the free-to-air media platforms never duplicate program content with a positive nuisance for advertising,and tend to offer maximal differentiated content if the nuisance is sufficiently ***,we reveal that if the viewers greatly dislike advertising(care less about advertising),the advertising volume of the pay-tv platforms is lower(higher)than that of the free-to-air ***,we extend our base model to the case in which a pay-tv platform competes against a free-to-air station,and numerically show that the profit of the pay-tv platform may be larger or smaller than that of the free-to-air station.

关键词： Media platforms two-sided markets content provision advertising intensity product differentiation

Practical approach for detecting k-nonseparability of multipartite quantum states

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 32-48页

作者： Jie Guo Jinchuan hou Xiaofei Qi Kan He College of Mathematics Taiyuan University of Technology School of Mathematics and Statistics Shanxi University Key Laboratory of Complex Systems and Data Science of Ministry of Education Shanxi University

The instantaneous detection of entanglement in quantum states poses a significant challenge in the fields of quantum computation and quantum information, and there are no practical methods or tools to complete this task satisfactorily so far. We propose a sufficient and necessary criterion of k-nonseparability for any n-partite finite or infinite dimensional systems, 2 ≤ k ≤ n. This criterion serves as the foundation for a practical scheme designed to detect entanglement and k-nonseparability across multipartite finite-dimensional systems. To exemplify the application of our scheme, we have developed a software tool that facilitates swift and precise identification of entanglement, k-nonseparability, and genuine entanglement within n-qubit systems, specifically tailored for systems with 2 ≤ n ≤ 4.

关键词： multipartite systems entanglement states entanglement witnesses ${\bm~k}$-nonseparability

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Web挖掘及其在电子商务中的应用研究

计算机技术与发展 2006年第8期16卷 186-188,191页

作者：林瑞娟侯德文山东师范大学信息科学与工程学院山东济南250014

作为一种崭新的信息处理技术,Web挖掘受到了人们极大的关注。电子商务是一种新型的现代商务模式,如何将Web挖掘应用于电子商务,来有效地处理信息,成为企业共同关注的问题。文中介绍了Web挖掘的概念和分类,阐述了Web挖掘在电子商务中的... 详细信息

作为一种崭新的信息处理技术,Web挖掘受到了人们极大的关注。电子商务是一种新型的现代商务模式,如何将Web挖掘应用于电子商务,来有效地处理信息,成为企业共同关注的问题。文中介绍了Web挖掘的概念和分类,阐述了Web挖掘在电子商务中的挖掘方法和过程,讨论了Web挖掘在电子商务中的典型应用,并就一个事例进行了具体的分析。

关键词：数据挖掘 Web挖掘电子商务

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数字化转型、供应链溢出与供应商ESG表现

华东经济管理 2025年第1期39卷 95-105页

作者：韩忠雪侯林湖北工业大学经济与管理学院湖北武汉430068 湖北工业大学湖北循环经济发展研究中心湖北武汉430068

环境、社会责任和公司治理表现逐渐成为衡量企业可持续发展能力的重要指标。文章以2010—2021年A股上市公司财务数据为基础,匹配上下游供应商—客户数据,实证检验了客户企业数字化转型对供应商ESG表现的影响。研究发现:客户企业数字化... 详细信息

环境、社会责任和公司治理表现逐渐成为衡量企业可持续发展能力的重要指标。文章以2010—2021年A股上市公司财务数据为基础,匹配上下游供应商—客户数据,实证检验了客户企业数字化转型对供应商ESG表现的影响。研究发现:客户企业数字化转型可以提升供应商ESG表现;在供应商地位较低、上下游企业关系密切、供应商营运环境较好以及上下游企业数字化转型差距较小的样本中,客户企业数字化转型对供应商ESG表现的促进作用更明显;进一步研究发现,客户企业数字化转型主要通过减少对供应链资金的占用、促进供应商绿色创新以及推动供应商绿色转型来提升供应商ESG表现。研究结论对提升产业链供应链韧性、促进经济可持续发展具有一定实践意义。

关键词：数字化转型供应链溢出 ESG表现财务溢出知识溢出

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