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China Foundry 2024年第4期21卷 360-368页

作者： Jia-ping Fu can-xu Zhou Guo-fa Mi Yuan Liu School of Materials Science and Engineering Henan Polytechnic UniversityJiaozuo 454100HenanChina School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China Key Laboratory for Advanced Materials Processing Technology Ministry of EducationBeijing 100084China

Diamond/aluminium composites have attracted attention in the field of thermal management of electronic packaging for their excellent *** order to solve the interfacial problem between diamond and aluminium,a novel process combining pressure infiltration with vacuum-assisted technology was proposed to prepare diamond/aluminum *** effect of diamond particle size on the microstructure and properties of the diamond/Al-12Si composites was *** results show that the diamond/Al-12Si composites exhibit high relative density and a uniform *** thermal conductivity and coefficient of thermal expansion increase with increasing particle size,while the bending strength exhibits the opposite *** the average diamond particle size increases from 45μm to 425μm,the thermal conductivity of the composites increases from 455 W·m^(-1)·K^(-1)to 713 W·m^(-1)·K^(-1)and the coefficient of thermal expansion increases from 4.97×10^(-6)K^(-1)to 6.72×10^(-6)K^(-1),while the bending strength decreases from 353 MPa to 246 *** research demonstrates that high-quality composites can be prepared by the vacuum-assisted pressure infiltration process and the thermal conductivity of the composites can be effectively improved by increasing the diamond particle size.

关键词： diamond/aluminum composites thermal conductivity electronic packaging vacuum-assisted pressure infiltration

Lipid nanovehicles overcome barriers to systemic RNA delivery: Lipid components, fabrication methods, and rational design

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Acta Pharmaceutica Sinica B 2024年第2期14卷 579-601页

作者： Jing Yan Hao Zhang Guangfeng Li Jiacan Su Yan Wei can xu Institute of Translational Medicine Shanghai UniversityShanghai 200444China Institute of Medicine Shanghai UniversityShanghai 200444China Department of Orthopedics Xinhua HospitalShanghai Jiao Tong University School of MedicineShanghai 200092China Department of Orthopedics Shanghai Zhongye HospitalShanghai 200941China Organoid Research Center Shanghai UniversityShanghai 200444China Department of Gastroenterology Changhai HospitalShanghai 200433China

Lipid nanovehicles are currently the most advanced vehicles used for RNA delivery,as demonstrated by the approval of patisiran for amyloidosis therapy in *** illuminate the unique superiority of lipid nanovehicles in RNA delivery,in this review,we first introduce various RNA therapeutics,describe systemic delivery barriers,and explain the lipid components and methods used for lipid nanovehicle ***,we emphasize crucial advances in lipid nanovehicle design for overcoming barriers to systemic RNA ***,the current status and challenges of lipid nanovehicle-based RNA therapeutics in clinical applications are also *** objective is to provide a comprehensive overview showing how to utilize lipid nanovehicles to overcome multiple barriers to systemic RNA delivery,inspiring the development of more high-performance RNA lipid nanovesicles in the future.

关键词： Lipid nanovehicles RNAtherapeutics Barriers to systemicRNA delivery Lipid components Fabricationmethods Lipid nanovehicledesign Extrahepatictissue targeting Organ tropism

Antagonism effect of residual S triggers the dual-path mechanism for water oxidation

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Journal of Energy Chemistry 2024年第6期93卷 568-579,I0014页

作者： Li Liu Jinming Cao Siqi Hu Tinghui Liu can xu Wensheng Fu Xinguo Ma Xiaohui Yang Chongqing Key Laboratory of Green Catalytic Materials and Technology College of ChemistryChongqing Normal UniversityChongqing 401331China School of Science Hubei University of TechnologyWuhan 430068HubeiChina Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing 400714China

Transition metal chalcogenides(TMCs)are recognized as pre-catalysts,and their(oxy)hydroxides derived from electrochemical reconstruction are the active species in the water ***,understanding the role of the residual chalcogen in the reconstructed layer is lacking in detail,and the corresponding catalytic mechanism remains ***,taking Cu_(1-x)Co_(x)S as a platform,we explore the regulating effect and existence form of the residual S doped into the reconstructive layer for oxygen evolution reaction(OER),where a dual-path OER mechanism is ***-principles calculations and operando~(18)O isotopic labeling experiments jointly reveal that the residual S in the reconstructive layer of Cu_(1-x)Co_(x)S can wisely balance the adsorbate evolution mechanism(AEM)and lattice oxygen oxidation mechanism(LOM)by activating lattice oxygen and optimizing the adsorption/desorption behaviors at metal active sites,rather than change the reaction mechanism from AEM to *** such a dual-path OER mechanism,Cu_(0.4)Co_(0.6)S-derived Cu_(0.4)Co_(0.6)OSH not only overcomes the restriction of linear scaling relationship in AEM,but also avoids the structural collapse caused by lattice oxygen migration in LOM,so as to greatly reduce the OER potential and improved stability.

关键词： Electrochemical reconstruction Adsorbate evolution mechanism Lattice oxygen oxidation mechanism Oxygen evolution reaction Residual sulfur

Comprehensive understanding of glioblastoma molecular phenotypes:classification,characteristics,and transition

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cancer Biology & Medicine 2024年第5期21卷 363-381页

作者： can xu Pengyu Hou Xiang Li Menglin Xiao Ziqi Zhang Ziru Li Jianglong xu Guoming Liu Yanli Tan Chuan Fang School of Clinical Medicine Hebei UniversityDepartment of NeurosurgeryAffiliated Hospital of Hebei UniversityBaoding 07100China Hebei Key Laboratory of Precise Diagnosis and Treatment of Glioma Baoding 071000China School of Basic Medical Sciences Hebei UniversityBaoding 07100China Department of Pathology Affiliated Hospital of Hebei UniversityBaoding 07100China

Among central nervous system-associated malignancies,glioblastoma(GBM)is the most common and has the highest mortality *** high heterogeneity of GBM cell types and the complex tumor microenvironment frequently lead to tumor recurrence and sudden relapse in patients treated with *** precision medicine,research on GBM treatment is increasingly focusing on molecular subtyping to precisely characterize the cellular and molecular heterogeneity,as well as the refractory nature of GBM toward *** understanding of the different molecular expression patterns of GBM subtypes is *** have recently proposed tetra fractional or tripartite methods for detecting GBM molecular *** various molecular subtypes of GBM show significant differences in gene expression patterns and biological *** subtypes also exhibit high plasticity in their regulatory pathways,oncogene expression,tumor microenvironment alterations,and differential responses to standard ***,we summarize the current molecular typing scheme of GBM and the major molecular/genetic characteristics of each ***,we review the mesenchymal transition mechanisms of GBM under various regulators.

关键词： Glioblastoma molecular phenotype classification characteristic mesenchymal transition

Progress,challenges,and prospects of spent lithium-ion batteries recycling:A review

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Journal of Energy Chemistry 2024年第2期89卷 144-171,I0005页

作者： Pengwei Li Shaohua Luo Lin Zhang Qiuyue Liu Yikai Wang Yicheng Lin can xu Jia Guo Peam Cheali Xiaoning Xia School of Materials Science and Engineering Northeastern UniversityShenyang 110819LiaoningChina School of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao 066004HebeiChina Department of Chemistry and Bioscience Aalborg UniversityAalborg 9220Denmark Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province Qinhuangdao 066004HebeiChina Department of Materials and Production Aalborg UniversityAalborg 9220Denmark School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina

The recycling and reutilization of spent lithium-ion batteries(LIBs)have become an important measure to alleviate problems like resource scarcity and environmental *** some progress has been made,battery recycling technology still faces challenges in terms of efficiency,effectiveness and environmental *** review aims to systematically review and analyze the current status of spent LIB recycling,and conduct a detailed comparison and evaluation of different recycling *** addition,this review introduces emerging recycling techniques,including deep eutectic solvents,molten salt roasting,and direct regeneration,with the intent of enhancing recycling efficiency and diminishing environmental ***,to increase the added value of recycled materials,this review proposes the concept of upgrading recycled materials into high value-added functional materials,such as catalysts,adsorbents,and *** life cycle assessment,the paper also explores the economic and environmental impacts of current battery recycling and highlights the importance that future recycling technologies should achieve a balance between recycling efficiency,economics and environmental ***,this review outlines the opportunities and challenges of recycling key materials for next-generation batteries,and proposes relevant policy recommendations to promote the green and sustainable development of batteries,circular economy,and ecological civilization.

关键词： Spent li-ion batteries Recycle Direct regeneration High-value conversion Functional materials

Chimera states of phase oscillator populations with nonlocal higher-order couplings

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Chinese Physics B 2024年第4期33卷 402-407页

作者：伍勇刚余华健郑志刚徐灿 School of Mathematical Sciences Huaqiao UniversityQuanzhou 362021China Institute of Systems Science and College of Information Science and Engineering Huaqiao UniversityXiamen 361021China

The chimera states underlying many realistic dynamical processes have attracted ample attention in the area of dynamical ***, we generalize the Kuramoto model with nonlocal coupling incorporating higher-order interactions encoded with simplicial *** works have shown that higher-order interactions promote coherent ***, we uncover the fact that the introduced higher-order couplings can significantly enhance the emergence of the incoherent ***, we identify that the chimera states arise as a result of multi-attractors in dynamic ***, we review that the increasing higher-order interactions can significantly shape the emergent probability of chimera *** the observed results can be well described in terms of the dimension reduction *** study is a step forward in highlighting the importance of nonlocal higher-order couplings, which might provide control strategies for the occurrence of spatial-temporal patterns in networked systems.

关键词： synchronization complex system coupled oscillators phase transition

科学测量的客观性建构——以水质指纹溯源为例

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科学学研究 2024年第4期42卷 683-690,703页

作者：徐灿洪伟清华大学社会科学学院北京100084

当前我国水环境治理面临着污染源难以快速准确地识别锁定的难题。水质指纹溯源技术通过测量污染物的三维荧光光谱,形成可与污染源数据库比对的水质指纹,从而快速准确地识别锁定污染源。本文以水质指纹溯源技术为案例,通过对某水环境实... 详细信息

当前我国水环境治理面临着污染源难以快速准确地识别锁定的难题。水质指纹溯源技术通过测量污染物的三维荧光光谱,形成可与污染源数据库比对的水质指纹,从而快速准确地识别锁定污染源。本文以水质指纹溯源技术为案例,通过对某水环境实验室的田野调查,从客观性的视角打开科学测量的“黑箱”。研究发现,该技术的试点应用实质上是实验室逐步建构科学测量客观性的过程。测量可以被视为量化数值的生产,实验室在测量方法的选择、测量标准的制定和测量结果的解读三个层面分别建构了水质指纹溯源的绝对客观性、局部客观性和互动客观性,让该技术被广泛地接受和认可,在试点应用中取得了成功。

关键词：客观性建构水质指纹科学测量

基于SNA的大型工程项目关键利益相关者和社会稳定风险因素识别

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铁道科学与工程学报 2024年第5期21卷 2048-2058页

作者：许璨宇德明罗含中南大学土木工程学院湖南长沙410075

大型工程项目关乎国计民生、影响深远,在多种因素的作用下易引发社会稳定风险,甚至可能引发更深层次的社会危机,为识别出大型工程项目的关键利益相关者和社会稳定风险因素,大型工程项目社会稳定风险研究势在必行。首先,收集61个大型工... 详细信息

大型工程项目关乎国计民生、影响深远,在多种因素的作用下易引发社会稳定风险,甚至可能引发更深层次的社会危机,为识别出大型工程项目的关键利益相关者和社会稳定风险因素,大型工程项目社会稳定风险研究势在必行。首先,收集61个大型工程项目社会稳定风险事件。然后,通过共现的方法得到“利益相关者-社会稳定风险因素”2-模网络,将数据导入Netdraw软件中,形成可视化的利益相关者-社会稳定风险因素关系网络图,并利用社会网络分析软件Ucinet计算2-模网络的度数中心度。最后,将2-模网络转化为2个1-模网络(利益相关者关系网络/社会稳定风险因素关系网络),识别出大型工程项目的关键利益相关者和社会稳定风险因素。研究结果表明:“利益相关者-社会稳定风险”2-模网络整体密度较高,大型工程项目中社会稳定风险因素和利益相关者关系密切,S6政府部门-R2环境安全风险与S8当地居民-R2环境安全风险是需重点关注的关系;大型工程项目中社会稳定风险中的关键利益相关者是业主、承包商、政府部门、当地居民、网络媒体;关键社会稳定风险因素是环境安全风险、决策信息公开不充分、公众参与不足、应对行为不当、社会舆情。研究成果为大型工程项目社会稳定风险研究提供新的视角,有助于提高大型工程项目管理者的风险认知水平,为管理者决策提供理论依据。

关键词：社会稳定风险利益相关者大型工程社会网络分析风险识别

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高压渗流法制备中高体积分数SiCp/Al复合材料的研究现状

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材料热处理学报 2024年第5期45卷 14-24页

作者：汤云南琼周灿旭刘源西安建筑科技大学材料科学与工程学院陕西西安710055 清华大学材料学院北京100084

高压渗流法制备SiCp/Al复合材料因其适应性广、操作简单、易于实现中高体积分数SiCp/Al复合材料的生产等特点而受到广大科研工作者的关注与广泛应用。本文详细阐述了中高体积分数SiCp/Al复合材料的高压渗流工艺,包括预制体的制备和高压... 详细信息

高压渗流法制备SiCp/Al复合材料因其适应性广、操作简单、易于实现中高体积分数SiCp/Al复合材料的生产等特点而受到广大科研工作者的关注与广泛应用。本文详细阐述了中高体积分数SiCp/Al复合材料的高压渗流工艺,包括预制体的制备和高压渗流过程两方面,并对预制体制备过程中颗粒粒径、添加剂等因素以及高压渗流过程中压力、温度等工艺参数对复合材料性能的影响进行了分析;简述了SiCp/Al界面润湿性的改善策略及其对复合材料性能的影响,以及热处理对复合材料组织与性能的影响;最后介绍了中高体积分数SiCp/Al复合材料的应用,并展望了高压渗流法制备中高体积分数SiCp/Al复合材料的发展前景。

关键词： SiCp/Al 高压渗流预制体界面热处理

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汽车故障诊断排除中仪器设备的应用研究

内燃机与配件 2024年第7期 77-79页

作者：李旭灿昆山登云科技职业学院江苏昆山215300

本文深入探讨了汽车故障诊断与排除过程中仪器设备应用的多个层面,对常见的故障诊断仪器设备进行了全面的阐述。这些设备包括示波器、万用表、诊断仪器等,它们在不同的应用领域中发挥着不同的作用。此外,本文还对汽车故障诊断与排除中... 详细信息

本文深入探讨了汽车故障诊断与排除过程中仪器设备应用的多个层面,对常见的故障诊断仪器设备进行了全面的阐述。这些设备包括示波器、万用表、诊断仪器等,它们在不同的应用领域中发挥着不同的作用。此外,本文还对汽车故障诊断与排除中仪器设备的发展趋势进行了深入的分析研究,明确了未来仪器设备的发展方向以及可能遇到的技术难题。针对这些问题,本文还提出了一些具有可操作性的建议措施,这些建议将有助于提升汽车故障诊断与排除的成效和效率,从而对汽车维修行业的发展具有一定的借鉴意义。

关键词：故障诊断仪器设备应用研究