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Water-facilitated targeted repair of degraded cathodes for sustainable lithium-ion batteries

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SusMat 2024年第2期4卷 28-40页

作者： jiao lin Xiaodong zhang Zhujie Li Ersha Fan Xiaowei Lv Renjie Chen Feng Wu Li Li Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and EngineeringBeijing Institute of TechnologyBeijingChina Collaborative Innovation Center of Electric Vehicles in Beijing No.5 South Zhongguancun StreetBeijingChina Advanced Technology Research Institute Beijing Institute of TechnologyJinanChina

Directly repairing end-of-life lithium-ion battery cathodes poses significant chal-lenges due to the diverse compositions of the ***,we propose a water-facilitated targeted repair strategy applicable to various end-of-life batches and *** process involves initiating structural repair and reconstruct-ing particle morphology in degraded LiMn_(2)O_(4)(LMO)through an additional thermal drive post-ambient water remanganization,achieving elemental *** to solid-phase repair,the resulting LMO material exhibits superior electrochemical and kinetic *** theoretical analysis highlights the impact of Mn defects on the structural stability and electron transfer rate of degraded *** propensity of Mn ions to diffuse within the Mn layer,specifically occupying the Mn 16d site instead of the Li 8a site,theoretically sup-ports the feasibility of ambient water ***,this method proves effective in the relithiation of degraded layered cathode materials,yielding single *** combining low energy consumption,environmental friendli-ness,and recyclability,our study proposes a sustainable approach to utilizing spent *** strategy holds the potential to enable the industrial direct repair of deteriorated cathode materials.

关键词： direct repair lithium-ion batteries water-facilitated

An Improved YOLOv5s-Based Smoke Detection System for Outdoor Parking Lots

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Computers, Materials & Continua 2024年第8期80卷 3333-3349页

作者： Ruobing Zuo Xiaohan Huang Xuguo jiao Zhenyong zhang State Key Laboratory of Public Big Data College of Computer Science and TechnologyGuizhou UniversityGuiyang550025China School of Information and Control Engineering Qingdao University of TechnologyQingdao266520China State Key Laboratory of Industrial Control Technology College of Control Science and EngineeringZhejiang UniversityHangzhou310027China Key Laboratory of Computing Power Network and Information Security Ministry of EducationQilu University of Technology(Shandong Academy of Sciences)Jinan250353China Text Computing&Cognitive Intelligence Engineering Research Center of National Education Ministry Guizhou UniversityGuiyang550025China

In the rapidly evolving urban landscape,outdoor parking lots have become an indispensable part of the city’s transportation *** growth of parking lots has raised the likelihood of spontaneous vehicle combus-tion,a significant safety hazard,making smoke detection an essential preventative ***,the complex environment of outdoor parking lots presents additional challenges for smoke detection,which necessitates the development of more advanced and reliable smoke detection *** paper addresses this concern and presents a novel smoke detection technique designed for the demanding environment of outdoor parking ***,we develop a novel dataset to fill the gap,as there is a lack of publicly available *** dataset encompasses a wide range of smoke and fire scenarios,enhanced with data augmentation to ensure robustness against diverse outdoor ***,we utilize an optimized YOLOv5s model,integrated with the Squeeze-and-Excitation Network(SENet)attention mechanism,to significantly improve detection accuracy while maintaining real-time processing ***,this paper implements an outdoor smoke detection system that is capable of accurately localizing and alerting in real time,enhancing the effectiveness and reliability of emergency *** show that the system has a high accuracy in terms of detecting smoke incidents in outdoor scenarios.

关键词： YOLOv5s smoke detection deep learning SENet

The Association between GLP-1 Receptor-Based Agonists and the Incidence of Asthma in Patients with Type 2 Diabetes and/or Obesity:A Meta-Analysis

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Biomedical and Environmental Sciences 2024年第6期37卷 607-616页

作者： Mengqing zhang Chu lin Xiaoling Cai Ruoyang jiao Shuzhen Bai Zonglin Li Suiyuan Hu Fang Lyu Wenjia Yang linong Ji Department of Endocrinology and Metabolism Peking University People’s HospitalBeijing 100044China

Objective Recent studies have indicated potential anti-inflammatory effects of glucagon-like peptide-1 receptor agonists(GLP-1RAs)on asthma,which is often comorbid with type 2 diabetes mellitus(T2DM)and ***,we conducted a meta-analysis to assess the association between the administration of glucagon-like peptide-1(GLP-1)receptor-based agonists and the incidence of asthma in patients with T2DM and/or *** PubMed,Web of Science,Embase,the Cochrane Central Register of Controlled Trials,and *** were systematically searched from inception to July *** controlled trials(RCTs)of GLP-1 receptor-based agonists(GLP-1RA,GLP-1 based dual and triple receptor agonist)with reports of asthma events were *** were computed as risk ratios(RR)using a fixedeffects *** Overall,39 RCTs with a total of 85,755 participants were *** to non-GLP-1 receptor-based agonist users,a trend of reduced risk of asthma was observed in patients with T2DM or obesity using GLP-1 receptor-based agonist treatments,although the difference was not statistically significant[RR=0.91,95%confidence interval(CI):0.68 to 1.24].Further Subgroup analyses indicated that the use of light-molecular-weight GLP-1RAs might be associated with a reduced the risk of asthma when compared with non-users(RR=0.65,95%CI:0.43 to 0.99,P=0.043).We also performed sensitivity analyses for participant characteristics,study design,drug structure,duration of action,and drug ***,no significant associations were *** Compared with non-users,a modest reduction in the incidence of asthma was observed in patients with T2DM or obesity using GLP-1 receptor-based agonist *** investigations are warranted to assess the association between GLP-1 receptor-based agonists and the risk of asthma.

关键词： Glucagon-like peptide-1 receptor agonists Twincretins Asthma Type 2 diabetes mellitus Obesity

TiO_(2)-Fe_(2)TiO_(5)heterostructure hollow spheres enable high-performance lithium-sulfur batteries via interfacial engineering

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Rare Metals 2024年第8期43卷 4006-4012页

作者： Kai-Tao Liu Hong-Qiang Wang Zhuo Chen Shi-lin zhang Ying-Ying Song Fang Liu Qiao-ling Li jiao Li School of Materials Science and Engineering Shandong University of TechnologyZibo 255049China College of Chemistry&Environmental Science Hebei UniversityBaoding 071002China School of Chemical Engineering Faculty of SciencesEngineering and TechnologyUniversity of AdelaideAdelaide 5005Australia School of Materials Science and Engineering Hebei University of TechnologyTianjin 300130China

The shuttle effect of lithium polysulfides between sulfur cathode and lithium anode is a notorious problem in the commercial application of lithium-sulfur ***,heterostructured TiO_(2)-Fe_(2)TiO_(5)hollow spheres were ... 详细信息

关键词： lithium sulfide (5)

Targeting a disintegrin and metalloprotease(ADAM)17-CD122 axis enhances CD8^(+)T cell effector differentiation and anti-tumor immunity

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Signal Transduction and Targeted Therapy 2024年第7期9卷 3097-3111页

作者： lina Sun Anjun jiao Haiyan Liu Renyi Ding Ning Yuan Biao Yang Cangang zhang Xiaoxuan Jia Gang Wang Yanhong Su Dan zhang lin Shi Chenming Sun Aijun zhang Lianjun zhang Baojun zhang Department of Pathogenic Microbiology and Immunology School of Basic Medical SciencesXi’an Jiaotong UniversityXi’anShaanxi 710061China Institute of Infection and Immunity Translational Medicine InstituteXi’an Jiaotong University Health Science CenterXi’anShaanxi 710061China Key Laboratory of Environment and Genes Related to Diseases Ministry of EducationXi’anShaanxi 710061China Xi’an Key Laboratory of Immune Related Diseases Xi’anShannxi 710061China Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy Cancer InstituteXuzhou Medical UniversityXuzhouJiangsuChina Department of Pediatrics Qilu Hospital of Shandong UniversityJinanChina National Key Laboratory of Immunity and Inflammation Suzhou Institute of Systems MedicineChinese Academy of Medical Sciences&Peking Union Medical CollegeSuzhou 215123 JiangsuChina Key Laboratory of Synthetic Biology Regulatory Elements Suzhou Institute of Systems MedicineChinese Academy of Medical Sciences&Peking Union Medical CollegeSuzhou 215123 JiangsuChina

CD8^(+)T cell immune responses are regulated by multi-layer networks,while the post-translational regulation remains largely *** ectodomain shedding is an important post-translational process orchestrating receptor expression and signal transduction through proteolytic cleavage of membrane ***,by targeting the sheddase A Disintegrin and Metalloprotease(ADAM)17,we defined a post-translational regulatory mechanism mediated by the ectodomain shedding in CD8^(+)T *** and proteomic analysis revealed the involvement of post-translational regulation in CD8^(+)T cells.T cellspecific deletion of ADAM17 led to a dramatic increase in effector CD8^(+)T cell differentiation and enhanced cytolytic effects to eliminate pathogens and ***,ADAM17 regulated CD8^(+)T cells through cleavage of membrane ***17 inhibition led to elevated CD122 expression and enhanced response to IL-2 and IL-15 stimulation in both mouse and human CD8^(+)T ***,inhibition of ADAM17 in CD8^(+)T cells improved the efficacy of chimeric antigen receptor(CAR)T cells in solid *** findings reveal a critical post-translational regulation in CD8^(+)T cells,providing a potential therapeutic strategy of targeting ADAM17 for effective anti-tumor immunity.

关键词： immunity stimulation involvement

Controllable nucleation and deformation of skyrmions on surface of magnetic nanotubular monolayer

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Rare Metals 2024年第7期43卷 3250-3259页

作者： Xin-Xin zhang Chen-Yu zhang Yi-Xin Xing Chao Man jiao Liu Yong Hu Department of Physics College of SciencesNortheastern UniversityShenyang 110819China School of Materials and Mineral Resources Engineering Universiti Sains MalaysiaEngineering Campus14300 Nibong TebalPenangMalaysia State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang110819China

Magnetic skyrmions emerge when the energy of ferromagnetic exchange interaction promoting parallel alignment of spins enters in competition with energies favoring non-collinear alignment of spins such as Dzy aloshinskii-Moriya interaction(DMI),long-rang dipole-dipole interaction(DDI),or higher-order exchange *** perform an unbiased Monte Carlo simulation to study the DMI-based skyrmion nucleation and stabilization on the surface of magnetic nanotubular monolayer controlled by tuning constants of DDI(g) and next-nearest-neighbor antiferromagnetic exchange interaction(j') with appropriate *** g and j',the loosely distributed skyrmions initially nucleate on the surface of nanotube approaching to the magnetic field(h) direction with increasing h in the intermediate ***,the skyrmion size,shape,density,distribution and crystal structure,as well as its driven field range,are tailored by g and j'.This work demonstrates the skyrmion nucleation mechanisms in three-dimensional magnetic nanostructures with curvature effect and multiple interactions,serving as a benchmark for a guide to experimentalists for preparation of samples in magnetic skyrmion states.

关键词： Magnetic nanotube Magnetic skyrmion Dzyaloshinskii-Moriya interaction Dipole-dipole interaction Monte Carlo simulation

Deep reinforcement learning based active surge control for aeroengine compressors

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Chinese Journal of Aeronautics 2024年第7期37卷 418-438页

作者： Xinglong zhang Zhonglin lin Runmin JI Tianhong zhang College of Energy and Power Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China School of Mechanical Engineering and Automation Fuzhou UniversityFuzhou 350108China

This study proposes an active surge control method based on deep reinforcement learning to ensure the stability of compressors when adhering to the pressure rise command across the wide operating range of an ***,the study establishes the compressor dynamic model with uncertainties,disturbances,and Close-Coupled Valve(CCV)actuator *** upon this foundation,a Partially Observable Markov Decision Process(POMDP)is defined to facilitate active surge *** address the issue of unobservability,a nonlinear state observer is designed using a finite-time high-order sliding ***,an Improved Soft Actor-Critic(ISAC)algorithm is developed,incorporating prioritized experience replay and adaptive temperature parameter techniques,to strike a balance between exploration and convergence during *** addition,reasonable observation variables,error-segmented reward functions,and random initialization of model parameters are employed to enhance the robustness and generalization ***,to assess the effectiveness of the proposed method,numerical simulations are conducted,and it is compared with the fuzzy adaptive backstepping method and Second-Order Sliding Mode Control(SOSMC)*** simulation results demonstrate that the deep reinforcement learning based controller outperforms other methods in both tracking accuracy and ***,the proposed active surge controller can effectively ensure stable operation of compressors in the high-pressure-ratio and high-efficiency region.

关键词： Aeroengine surge Active surge control Moore-Greitzer model Deep reinforcement learning Soft actor-critic Nonlinear observer

Creep-induced redistribution of alloying elements in CZ1 zirconium alloys

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Journal of Materials Science & Technology 2024年第6期173卷 31-44页

作者： W.T.lin Q.Y.Lv D.jiao L.B.zhang J.Tan G.Sha J.Hu China Nuclear Power Technology Research Institute Shenzhen 518026China School of Material Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China

Introducing minor alloying elements is an effective strategy to improve the corrosion and mechanical properties of zirconium alloys for nuclear *** in-reactor service,external environment and stress can affect the distribution of alloying elements,substantially changing the degradation process of zirconium *** date,there is a lack of in-depth understanding of the interaction between creep and microchemistry ***,we conducted systematic transmission electron microscopy(TEM)and atom probe tomography(APT)investigations to address creep-induced redistribution of alloying elements in CZ1(Zr-Sn-Nb-Fe-Cr-Cu)zirconium alloy with different initial ***,Fe,Sn,and Cu are found to co-segregate at grain *** higher the intermediate annealing temperature,the larger the Gibbsian interfacial excesses of solute elements *** further demonstrate that creep can reduce the excess value of Fe at grain boundaries due to the coarsening of Zr-Fe-Cr second phase particles via grain boundary and dislocation pipe *** the same time,the excess value of Sn is increased by diffusing from the matrix to grain ***,Cu as a minor element in the concentration range of 0.05-0.3 wt.%is found to segregate at dislocations to form the Cottrell atmosphere and develop Cu-rich nanoclusters for suppressing dislocation *** new understanding of the segregation and clustering of minor alloying elements provides guidance for developing zirconium alloys with enhanced creep resistance.

关键词： Zirconium alloy Thermal creep Grain boundary segregation Dislocation segregation Cu-rich nanoclusters

Flexible resource allocation optimization model considering global K-means load clustering and renewable-energy consumption

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Clean Energy 2024年第5期8卷 129-143页

作者： Jie jiao Puyu He Yuhong zhang Jiyuan zhang Zhuhan Long Hanjing Liu State Grid Sichuan Electric Power Company Economic Research Institute ChengduChina

Vigorously developing flexible resources in power systems will be the key to building a new power system and realizing energy *** investment construction cost and operation cost of various flexible resources are different,and the adjustment ability is different in different ***,the optimization of complementary allocation of various resources needs to take into account the economy and adjustment ability of different *** this paper,the global K-means load clustering model is pro-posed and the 365-day net load is reduced to eight typical daily net loads by ***,a two-level optimization model of flexible resource complementary allocation considering wind power and photovoltaic consumption is *** flexible resources involved include the flexible transformation of thermal power,hydropower,pumped storage,energy storage,and demand *** upper-layer model optimizes the capacity allocation of various flexible resources with the minimum investment and construction cost as the goal and the lower layer optimizes the operating output of various units with the minimum operating cost as the *** results of the example analysis show that the flexible capacity of thermal power units has nothing to do with the abandonment rate of renewable *** the abandonment rate of renewable energy decreases,the optimal capacity of pumped storage,electrochemical energy storage,and hydropower units *** the power-abandonment rate of renewable energy is 5%,the optimal allocation capacity of thermal power flexibility transformation,pumped storage,electrochemical energy storage,hydropower unit,and adjustable load in Province A is 5313,17090,5830,72113,and 4250 MW,*** the condition that the renewable-energy abandonment rate is 0,5%,and 10%respectively,the configured capacity of pumped storage is 20000,17090,and 14847 MW,respectively.

关键词： wind power photovoltaic power K-means clustering algorithm flexible resources complementary configuration operation optimization