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Influence of introducing Zr,Ti,Nb and Ce elements on externally solidified crystals and mechanical properties of high-pressure die-casting Al–Si alloy

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 147-153页

作者： Junjie Li wenbo Yu Zhenyu Sun Weichen Zheng Liangwei Zhang Yanling Xue Wenning Liu Shoumei Xiong Center of Materials Science and Engineering School of Mechanical and Electronic Control EngineeringBeijing Jiaotong UniversityBeijing 100044China Traffic&Transportation Engineering Central South UniversityChangsha 410075China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China

High pressure die casting(HPDC)AlSi10Mn Mg alloy castings are widely used in the automobile *** can optimize the mechanical properties of castings through heat treatment,while the release of thermal stress arouses the deformation of large integrated ***,the development of non-heat treatment Al alloys is becoming the hot *** addition,HPDC contains externally solidified crystals(ESCs),which are detrimental to the mechanical properties of *** achieve high strength and toughness of non-heat treatment die-casting Al-Si alloy,we used AlSi9Mn alloy as matrix with the introduction of Zr,Ti,Nb,and *** influences on ESCs and mechanical properties were systematically investigated through three-dimensional reconstruction and thermodynamic *** results reveal that the addition of Ti increased ESCs'size and porosity,while the introduction of Nb refined ESCs and decreased ***,large-sized Al_3(Zr,Ti)phases formed and degraded the mechanical *** introduction of Ce resulted in the poisoning effect and reduced mechanical properties.

关键词： aluminium alloy high-pressure die-casting externally solidified crystals non-heat treatment

Nanomaterials-mediated lysosomal regulation:a robust protein-clearance approach for the treatment of Alzheimer’s disease

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Neural Regeneration Research 2025年第2期20卷 424-439页

作者： Mengqi Hao Jianjian Chu Tinglin Zhang Tong Yin Yuankai Gu Wendanqi Liang wenbo Ji Jianhua Zhuang Yan Liu Jie Gao You Yin Department of Neurology Second Affiliated Hospital of Naval Medical University(Shanghai Changzheng Hospital)ShanghaiChina School of Health Science and Engineering University of Shanghai for Science and TechnologyShanghaiChina Changhai Clinical Research Unit Shanghai Changhai HospitalNaval Medical UniversityShanghaiChina Department of Clinical Pharmacy Xinhua HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Department of Neurology Shanghai East HospitalSchool of MedicineTongji UniversityShanghaiChina

Alzheimer’s disease is a debilitating,progressive neurodegenerative disorder characterized by the progressive accumulation of abnormal proteins,including amyloid plaques and intracellular tau tangles,primarily within the ***,crucial intracellular organelles responsible for protein degradation,play a key role in maintaining cellular *** studies have suggested a link between the dysregulation of the lysosomal system and pathogenesis of neurodegenerative diseases,including Alzheimer’s *** the normal physiological function of lysosomes hold the potential to reduce the pathological burden and improve the symptoms of Alzheimer’s ***,the efficacy of drugs in treating Alzheimer’s disease is limited,with major challenges in drug delivery efficiency and ***,nanomaterials have gained widespread use in Alzheimer’s disease drug research owing to their favorable physical and chemical *** review aims to provide a comprehensive overview of recent advances in using nanomaterials(polymeric nanomaterials,nanoemulsions,and carbon-based nanomaterials)to enhance lysosomal function in treating Alzheimer’s *** review also explores new concepts and potential therapeutic strategies for Alzheimer’s disease through the integration of nanomaterials and modulation of lysosomal *** conclusion,this review emphasizes the potential of nanomaterials in modulating lysosomal function to improve the pathological features of Alzheimer’s *** application of nanotechnology to the development of Alzheimer’s disease drugs brings new ideas and approaches for future treatment of this disease.

关键词： Alzheimer’s disease autophagy dysfunction lysosomal acidification lysosomal system nanomaterials neurodegenerative diseases

A surface engineering strategy for the stabilization of zinc metal anodes with montmorillonite layers toward long-life rechargeable aqueous zinc ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 94-105页

作者： wenbo Wang Ruifeng Xu Xu Zhang Peiyu Wang Bao Yang Bingjun Yang Juan Yang Kailimai Su Pengjun Ma Yanan Deng Xianfeng Fan Wanjun Chen Key Laboratory for Electronic Materials College of Electrical Engineering Northwest Minzu University Resource Chemistry and Energy Materials Research Center State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences University of Chinese Academy of Sciences Institute for Materials and Processes School of Engineering University of Edinburgh

Rechargeable aqueous zinc-ion batteries （AZIBs） exhibit appreciable potential in the domain of electrochemical energy ***,there are serious challenges for AZIBs,for instance zinc dendrite growth,hydrogen evolution reaction （HER）,and corrosion side ***,we propose a surface engineering modification strategy for coating the montmorillonite （MMT） layer onto the surface of the Zn anode to tackle these issues,thereby achieving high cycling stability for rechargeable *** results reveal that the MMT layer on the surface of the Zn anode is able to provide ordered zincophilic channels for zinc ions migration,facilitating the reaction kinetics of zinc *** functional theory（DFT） calculations and water contact angle （CA） tests prove that MMT@Zn anode exhibits superior adsorption capacity for Zn2+and better hydrophobicity than the bare Zn anode,thereby achieving excellent cycling ***,the MMT@Zn||MMT@Zn symmetric cell holds the stable cycling over 5600 h at 0.5 mA cm-2and 0.125 m A h cm-2,even exceeding 1800 h long cycling under harsh conditions of 5 m A cm-2and 1.25 m A h *** MMT@Zn||V2O5full cell reaches over 3000 cycles at 2 A g-1with excellent rate ***,this surface engineering modification strategy for enhancing the electrochemical performance of AZIBs represents a promising application.

关键词： Hydrogen evolution reaction

Printing perovskite and graphene parallel structure-based optical-mechanical sensors for human-machine interaction

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Science China Technological Sciences 2025年

作者： Sisi CHEN Jiemin ZHANG Nan CHENG wenbo LI Jing LIU Hongfei XIE Jie ZHANG Yueying CHENG Xiaotong ZHAO Meng SU Yanlin SONG Key Laboratory of Green Printing CAS Research/Education Center for Excellence in Molecular Sciences Institute of ChemistryChinese Academy of Sciences (ICCAS) University of Chinese Academy of Sciences Weiyang College Tsinghua University Department of Cardiovascular Surgery First Medical Center PLA General Hospital AECC Beijing Institute of Aeronautical Materials Beijing Institute of Graphene Technology Beijing Engineering Research Centre of Graphene Application School of Integrated Circuit & Beijing National Research Center for Information Science and Technology (BNRist) Tsinghua University

Surgical robots are designed to provide enhanced precision and dexterity compared to manual surgical procedures,which mainly rely on multimodal sensing technologies for the surgeon to seamlessly operate the robotic arms and *** with single-mode sensors, optical and mechanical bi-modal sensors provide improved precision, enhanced safety,and robustness of human-machine interaction systems. Here, the template-guided and pneumatic printing technologies are combined to construct perovskite and graphene parallel structures with both optical and mechanical sensing capabilities. The printed uniformly crystallized perovskite microstructure exhibits fast and sensitive photoelectric response characteristics,enabling shadow recognition functionality. The combination of graphene and elastic rubber endows the great printability to prepare parallel structures near the perovskite arrays for force sensing capabilities. Thus, the printed perovskite and graphene structures possess non-contact optical sensing capabilities to detect hand position by recognizing shadows between the hand and the sensor, as well as contact mechanical sensing capabilities to detect touch force applied by the hand. It provides a synergistic platform for real-time and multidimensional feedback to improve human-machine interaction.

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Comparison of seismic effects during deep tunnel excavation with different methods

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Earthquake Engineering and Engineering Vibration 2018年第3期17卷 659-675页

作者： Xie Liangtao Yan Peng Lu wenbo Chen ming Wang Gaohui State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan University Key Laboratory of Rock Mechanics in Hydraulic Structural Engineering Ministry of Education Wuhan University

The rapid release of strain energy is an important phenomenon leading to seismic events or rock failures during the excavation of deep *** theoretical analysis of strain energy adjustment during blasting and mechanical excavation,and the interpretation of measured seismicity in the Jin-Ping Ⅱ Hydropower Station in China,this paper describes the characteristics of energy partition and induced seismicity corresponding to different energy release *** theoretical analysis indicates that part of the strain energy will be drastically released accompanied by violent crushing and fragmentation of rock under blast load,and this process will result in seismic events in addition to blasting *** intensity of the seismicity induced by transient strain energy release highly depends on the unloading rate of in-situ *** mechanical excavation,the strain energy,which is mainly dissipated in the deformation of surrounding rock,releases smoothly,and almost no seismic events are produced in this gradual *** test reveals that the seismic energy transformed from the rock strain energy under high stress condition is roughly equal to that coming from explosive energy,and the two kinds of vibrations superimpose together to form the total blasting excavation-induced *** addition,the most intense seismicity is induced by the cut blasting delay; this delay contributes 50% of the total seismic energy released in a blast *** mechanical excavation,the seismic energy of induced vibration（mainly the low intensity acoustic emission events or mechanical loading impacts）,which accounts only for 1.5‰ of that caused by in-situ stress transient releasing,can be ignored in assessing the dynamic response of surrounding rock.

关键词： seismicity energy release rate blasting excavation mechanical excavation seismic energy

Evaluation of human response to blasting vibration from excavation of a large scale rock slope:A case study

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Earthquake Engineering and Engineering Vibration 2017年第2期16卷 435-446页

作者： Yan Peng Lu wenbo Zhang Jing Zou Yujun Chen ming State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan University Wuhan 430072 China Key Laboratory of Rock Mechanics in Hydraulic Structural Engineering Ministry of Education Wuhan University Wuhan 430072 China

Ground vibration, as the most critical public hazard of blasting, has received much attention from the community. Many countries established national standards to suppress vibration impact on structures, but a world-accepted blasting vibration criterion on human safety is still missing. In order to evaluate human response to the vibration from blasting excavation of a large-scale rock slope in China, this study aims to suggest a revised criterion. The vibration frequency was introduced to improve the existing single-factor （peak particle velocity） standard recommended by the United States Bureau of Mines （USBM）. The feasibility of the new criterion was checked based on field vibration monitoring and investigation of human reactions. Moreover, the air overpressure or blast effects on human beings have also been discussed. The result indicates that the entire zone of influence can be divided into three subzones： severe-annoyance, light-annoyance and perception zone according to the revised safety standard. Both the construction company and local residents have provided positive comments on this influence degree assessment, which indicates that the presented criterion is suitable for evaluating human response to nearby blasts. Nevertheless, this specific criterion needs more field tests and verifications before it can be

关键词： Construction industry Excavation Velocity control

考虑需求提前满足的第三方共享制造平台产能跨周期匹配问题研究

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管理工程学报 2025年第2期39卷 162-174页

作者：黎君张旭梅但斌李文博重庆大学经济与工商管理学院重庆大学现代物流重庆市重点实验室

随着新一代信息技术与制造业的深度融合,第三方共享制造平台迅速发展。针对第三方共享制造平台的产能匹配问题,考虑平台提前满足制造商需求以及产能数量和价格约束,本文构建了二层多目标优化模型。其中,下层模型用于优化当前周期的匹配... 详细信息

随着新一代信息技术与制造业的深度融合,第三方共享制造平台迅速发展。针对第三方共享制造平台的产能匹配问题,考虑平台提前满足制造商需求以及产能数量和价格约束,本文构建了二层多目标优化模型。其中,下层模型用于优化当前周期的匹配策略,上层模型用于决策是否提前满足制造商的需求。本文结合贪心算法和搜索算法设计了求解方法,该方法先通过贪心算法产生初始解,再采用混合策略搜索算法对初始解进行优化。最后,在数值实验部分,本文将CPLEX求解结果与研究所得结果相比,证明了算法的有效性。研究表明,本文所提算法不仅减少了模型的求解时间,还保证了解的质量和精度,为第三方共享制造平台解决跨周期的产能匹配问题提供了一种参考方法。

关键词：第三方共享制造平台产能匹配跨周期贪心算法搜索算法

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Synthesis,upconversion luminescence and optical heating of hexagonal NaGdF_4:Yb^(3+),Er^(3+)

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Journal of Rare Earths 2018年第11期36卷 1136-1140页

作者： Tao Pang wenbo Peng ming Yang Jianping Xie Wenhui Lu College of Science Huzhou University

An optical heater based on hexagonal NaGdF^4＋Yb^3＋/Er^3＋ is reported. XRD, SEM and EDS characterization results show that F /Ln^3＋ can not only control the phase composition, particle size and morphology, but also affect the effective doping concentration of Yb^3＋ and Er^3＋. When F /Ln^3＋ is 12/1, the strongest upconversion luminescence is obtained. Based on the luminescent temperature sensing behavior of Er^3＋, the photo-thermal conversion performance was investigated. The results indicate that the temperature of irradiation spot is linearly dependent on the power density, and the photo-thermal responsivity is determined to be 3.3 K-cm2/W. Also, it is found that the photo-thermal conversion efficiency can be regulated by changing the Yb3~ doping concentration. Compared with the nano-gold, copper sulfide and carbon nanotubes, the NaGdF4：Yb^3＋/Er^3＋has the triple functions of upconversion luminescence, temperature sensing, and photo-thermal conversion, and may therefore be a promising optical heater for photo-thermal therapy of tumors.

关键词： Hycirothermal synthesis Upconversion Temperature sensing Optical heater NaGdF4 Rare earths

Case Report: Surgical Correction of Transposition of the Great Arteries with Aortopulmonary Window

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Congenital Heart Disease 2024年第3期19卷 275-278页

作者： Qiqi Shi Xuan Lei wenbo Zhang ming Ye Department of Cardiothoracic Surgery Children’s Hospital of Fudan UniversityShanghai201102China Department of Pediatrics Children’s Hospital of Fudan University(Xiamen Branch)Xiamen Children’s HospitalXiamen361006China

Introduction:Transposition of the great arteries(TGA)with aortopulmonary window is a rare type of congenital heart disease with limited *** reported a neonate aged 25 days receiving the arterial switch operation and assisted with extracorporeal membrane ***:TGA with aortopulmonary window can be safely correctly with the arterial switch operation.

关键词： Transposition of the great arteries aortopulmonary window arterial switch operation