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Mixed‑Dimensional Assembly Strategy to Construct Reduced Graphene Oxide/Carbon Foams Heterostructures for Microwave Absorption,Anti‑Corrosion and Thermal Insulation

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Nano-Micro Letters 2024年第11期16卷 1-18页

作者： Beibei Zhan Yunpeng Qu Xiaosi Qi Junfei Ding Jiao‑jing Shao Xiu Gong Jing‑Liang Yang Yanli Chen Qiong Peng Wei Zhong Hualiang Lv College of Physics Guizhou Province Key Laboratory for Photoelectrics Technology and ApplicationGuizhou UniversityGuiyang City 550025People’s Republic of China College of Materials and Metallurgy Guizhou UniversityGuiyang City 550025People’s Republic of China National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for NanoTechnology Nanjing UniversityNanjing 210093People’s Republic of China Department of Materials Science and Laboratory of Advanced Materials Fudan UniversityShanghai 200433People’s Republic of China

Considering the serious electromagnetic wave(EMW)pollution problems and complex application condition,there is a pressing need to amalgamate multiple functionalities within a single ***,the effective integration of diverse functions into designed EMW absorption materials still faces the huge ***,reduced graphene oxide/carbon foams(RGO/CFs)with two-dimensional/three-dimensional(2D/3D)van der Waals(vdWs)heterostructures were meticulously engineered and synthesized utilizing an efficient methodology involving freeze-drying,immersing absorption,secondary freeze-drying,followed by carbonization *** to their excellent linkage effect of amplified dielectric loss and optimized impedance matching,the designed 2D/3D RGO/CFs vdWs heterostructures demonstrated commendable EMW absorption performances,achieving a broad absorption bandwidth of 6.2 GHz and a reflection loss of-50.58 dB with the low matching ***,the obtained 2D/3D RGO/CFs vdWs heterostructures also displayed the significant radar stealth properties,good corrosion resistance performances as well as outstanding thermal insulation capabilities,displaying the great potential in complex and variable ***,this work not only demonstrated a straightforward method for fabricating 2D/3D vdWs heterostructures,but also outlined a powerful mixeddimensional assembly strategy for engineering multifunctional foams for electromagnetic protection,aerospace and other complex conditions.

关键词： Multifunctionality Reduced graphene oxide/carbon foams 2D/3D van der Waals heterostructures Electromagnetic wave absorption Thermal insulation

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Enhancing lithium-ion and electric conductive Li_(2)FeSiO_(4)cathode through in situ boron-doping and carbon-coating strategy

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Rare Metals 2022年第12期41卷 4055-4064页

作者： Hao-Xiang Li Jia-Hui Zhu Xiao-Bing Huang Tao Zhou Yu-Rong Ren Hunan Provincial Key Laboratory of Chemical Power Sources College of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083China Hunan Provincial Key Laboratory of Water Treatment Functional Materials Hunan Provincial Key Laboratory for Control Technology of Distributed Electric Propulsion AircraftCollege of Chemistry and Materials EngineeringHunan University of Arts and ScienceChangde 415000China Jiangsu Province Engineering Research Center of Intelligent Manufacturing Technology for the New Energy Vehicle Power Battery Changzhou Key Laboratory of Intelligent Manufacturing and Advanced Technology for Power BatterySchool of Materials Science and EngineeringChangzhou UniversityChangzhou 213164China

The extremely low electrical conductivity and ion-diffusion coefficient of Li_(2)FeSiO_(4)limits its application as a cathode material in lithium-ion ***,in situ boron-doped Li_(2)FeSi_(1)-xB_(x)O_(4-δ)/C(x=0,0.01,0.03,0.05 and 0.07)at the Si site was prepared via the solid-state reaction method using pitch as the c arbon source.B doping in the lattice structure and a c arbon coating on the surface of the composites could effectively enhance the Li^(+)/electron ***,the reduced particle size of the active material with the relatively high specific area via borondoped modification could improve the wettability between the electrolyte and *** the synergistic effect of appropriate boron doping and carbon coating,it exhibits a good rate performance,specific capacity,and cycling *** a result,the as-prepared Li_(2)FeSi_(0.95)B_(0.05)O_(4-δ)/C cathode showed a high discharge capacity of 160.7mAh·g^(-1)at 0.2C,and the capacity retention rate was 96%after 100 cycles at *** work presents an effective path for designing advanced cathode materials for lithium-ion batteries.

关键词： Li_(2)FeSiO_(4) Carbon coating Boron doping Synergistic effect Lithium-ion battery

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An End-Traction Lower Extremity Rehabilitation robot: Structural Design, Motion Analysis, and Experimental Validation 23rd

An End-Traction Lower Extremity Rehabilitation Robot: Struct...

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23rd IFToMM China International Conference on Mechanism and Machine Science and Engineering, IFToMM CCMMS 2022

作者： Bian, Hui Yang, Fan Sun, Zhaoliang Li, Jiachen Ding, Jiebin Li, Shuai Hebei Provincial Key Laboratory of Parallel Robot and Mechatronic System Yanshan University Hebei Qinhuangdao066004 China Key Laboratory of Advanced Forging & Stamping Technology and Science Yanshan University Ministry of Education of China Hebei Qinhuangdao066004 China

ISBN: (纸本)9789811993978

An end-traction lower extremity rehabilitation robot named ETLER is designed to meet the rehabilitation needs of patients with lower extremity dysfunction at all stages of recovery, while taking into account the ease of operation for the patient. A single robot can meet the needs of a hemiplegic patient on either side for the designed end-change structure. The robots can also be used in pairs for patients with spinal cord injuries. Meanwhile, the adjustable ankle joint limit design provides customized training programs for the ankle joint. To carry out the trajectory planning of the rehabilitation robot, kinematic analysis and control strategy modeling of the robot and human–machine system are carried out. The functionality and universality of the rehabilitation robot are verified through comparative tests. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Machine design

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Intelligent Manufacturability Evaluation for an MBD Model of key Parts of a Marine Diesel Engine

Intelligent Manufacturability Evaluation for an MBD Model of...

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2022 International Conference on advanced Manufacturing technology and Manufacturing Systems, ICAMTMS 2022

作者： Cui, Shuo Zhang, Chun-Yan Zhang, Sheng-Wen Wang, Duan-Yan Department Mechanical Engineering Jiangsu University of Science and Technology Jiangsu Zhenjiang China Jiangsu Provincial Key Laboratory of Advanced Manufacturing of Machinery and Equipment Jiangsu Zhenjiang China

ISBN: (纸本)9781510656840

The existing manufacturability evaluation methods of key marine diesel engine components are not advanced enough, and they have low accuracy. In this paper, an intelligent evaluation method for manufacturability based on the MBD model is proposed. The contents and construction approaches of the evaluation data resource database are elaborated which provides data sources for the implementation of the evaluation method. The intelligent evaluation of the manufacturability of parts is performed from different angles. The structural process evaluation method based on the T-S fuzzy neural network intelligent decision-making model is verified by example;the feasibility and accuracy of the method are verified by example. © 2022 SPIE.

关键词： Fuzzy neural networks

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Enhanced hydrogen storage properties of NaBH4–Mg（BH4）2 composites by NdF3 addition

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Progress in Natural Science:Materials International 2021年第4期31卷 521-526页

作者： Jianguang Yuan Jinting Chen Haixiang Huang Yujie Lv Bogu Liu Zhongyu Li Bao Zhang Wei Lv Ying Wu Central Iron & Steel Research Institute Advanced Technology & Materials Co. Ltd Jiangsu JITRI Advanced Energy & Materials Research Institute Co. Ltd Advanced Materials Research Institute North China Electric Power University Jiangsu Provincial Key Laboratory of Special Robot Technology Hohai University

As two important members of complex hydrides,Mg（BH4）2and Na BH4have a high gravimetric capacity （14.9 and10.8 wt%,respectively）.In this study,the Mg（BH4）2was synthesized by the ion exchange ***,the Mg（BH4）2and Na BH4composites with different amounts （30,40 and 50 wt%） of NdF3were prepared by mechanical *** of the Nd F3on the microstructural evolution and hydrogen storage properties were *** results show that Nd F3catalyst can significantly improve the dehydrogenation kinetics of the eutectic composites of Na BH4–Mg（BH4）*** onset hydrogen desorption temperature of the composites is about88.6C,which is about 110C lower than that of Mg（BH4）2and Na ***（BH4）2–Na BH4-0.5NdF3composites can released 5.2 wt%H2at 250C within 30 min,and the dehydrogenation capacity is significantly higher than that of Mg（BH4）2–Na *** analysis of the dehydrogenation mechanism reveals that NdF3takes participate in the reaction to generate Na MgF3to promote the dehydrogenation reaction process of the composites.

关键词： Hydrogen storage materials Mg(BH4)2 NaBH4 NdF3 Ball-milling Hydrogen desorption performance

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Balancing the piezoelectric coefficient and carrier concentration of Bi_(2)WO_(6−x) for ultrahigh piezocatalysis

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Journal of advanced Ceramics 2024年第11期13卷 1737-1747页

作者： Ying Wang Xiaoli Xu Lingbo Xiao Lutao Li Qiuhua Xu Zhenhai Wen Laishun Qin Yanmin Jia Dong-Liang Peng Wanping Chen Da Chen College of Materials and Chemistry China Jiliang UniversityHangzhou 310018China Key Laboratory of Jiangxi Province for Persistent Pollutants Control National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization and Resources RecycleNanchang Hangkong UniversityNanchang 330063China Department of Physics Zhejiang University of Science and TechnologyHangzhou 310008China Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics Southeast UniversityNanjing 211189China Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province College of EnergySoochow UniversitySuzhou 215006China State Key Laboratory of Structural Chemistry and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen EnergyFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China School of Physics and Information Technology Shaanxi Normal UniversityXi’an 710121China State Key Laboratory of Physical Chemistry of Solid Surface Fujian Key Laboratory of Surface and Interface Engineering for High Performance MaterialsCollege of MaterialsXiamen UniversityXiamen 361005China School of Physics and Technology Wuhan UniversityWuhan 430072China

Balancing the piezoelectric coefficient and carrier concentration of materials is key in the field of *** this work,Bi_(2)WO_(6) material with both piezoelectric and semiconductor properties was chosen as a model material.A one-step ethylene glycol(EG)-assisted solvothermal method was used to synthesize Bi2WO6 with oxygen *** controlling the solvothermal time and temperature,the oxygen vacancy concentration(COV)was *** COV increases,the piezoelectric coefficient decreases,the carrier concentration increases,and the hydrogen production rate first increases but then *** COV reaches 1.45×10^(12) spins·mg^(−1),the corresponding piezoelectric coefficient and carrier concentration are 13.9 pm·V^(−1) and 2.90×10^(20) cm^(−3),*** optimal hydrogen production rate per power of 2.21μmol·g^(−1)·h^(−1)·W^(−1) is equivalent to or even better than that of most reported *** piezoelectric coefficient and carrier concentration,as two factors,jointly determine the piezocatalytic *** findings of this research can provide important and deep-seated insights for better piezocatalysts in the future.

关键词： piezocatalysis oxygen vacancy carrier concentration piezoelectric coefficient hydrogen evolution

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The single-cell transcriptomic landscape of the topological differences in mammalian auditory receptors

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Science China(Life Sciences) 2024年第11期67卷 2398-2410页

作者： Xiangyu Ma Xin Chen Yuwei Che Siyao Zhu Xinlin Wang Shan Gao Jiheng Wu Fanliang Kong Cheng Cheng Yunhao Wu Jiamin Guo Jieyu Qi Renjie Chai State Key Laboratory of Bioelectronics Department of Otolaryngology Head and Neck SurgeryZhongda HospitalSchool of Life Sciences and TechnologyAdvanced Institute for Life and HealthJiangsu Province High-Tech Key Laboratory for Bio-Medical ResearchSoutheast UniversityNanjing 210096China School of Engineering Vanderbilt UniversityNashville 37240USA Department of Otolaryngology-Head and Neck Surgery Affiliated Drum Tower Hospital of Nanjing University Medical SchoolJiangsu Provincial Key Medical Discipline(Laboratory)Nanjing 210096China Research Institute of Otorhinolaryngology Nanjing 210096China Department of Neurology Aerospace Center HospitalSchool of Life SciencesBeijing Institute of TechnologyBeijing 100081China Advanced Technology Research Institute Beijing Institute of TechnologyBeijing 100081China Co-innovation Center of Neuroregeneration Nantong UniversityNantong 226001China Department of Otolaryngology Head and Neck Surgery Sichuan Provincial People’s HospitalUniversity of Electronic Science and Technology of ChinaChengdu 610072China Southeast University Shenzhen Research Institute Shenzhen 518063China

Mammalian hair cells(HCs)are arranged spirally along the cochlear axis and correspond to different frequency *** as primary sound detectors,HCs spatially segregate component frequencies into a topographical *** display significant diversity in anatomical and physiological characteristics,yet little is known about the organization of the cochleotopic map of HCs or the molecules involved in this *** single-cell RNA sequencing,we determined the distinct molecular profiles of inner hair cells and outer hair cells,and we identified numerous position-dependent genes that were expressed as *** identified genes such as Ptn,Rxra,and Nfe2l2 were found to be associated with *** employed the SCENIC algorithm to predict the transcription factors that potentially shape these tonotopic ***,we confirmed that Nfe2l2,a tonotopy-related transcription factor,is critical in mice for sensing low-tomedium sound frequencies in *** analysis of cell-cell communication revealed potential receptor-ligand networks linking inner hair cells to spiral ganglion neurons,including pathways such as BDNF-Ntrk and PTN-Scd4,which likely play essential roles in tonotopic ***,these findings suggest that molecular gradients serve as the organizing principle for maintaining the selection of sound frequencies by HCs.

关键词： tonotopic axis hair cell auditory receptor scRNA-seq

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A Novel Fault Diagnosis Method for Rolling Bearing Based on TVFEMD Energy Entropy and PFA-LSSVM Optimization Model 3

A Novel Fault Diagnosis Method for Rolling Bearing Based on ...

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3rd International Signal Processing, Communications and Engineering Management Conference, ISPCEM 2023

作者： Hu, Zhiping Xu, Yanhe Lu, Junze Jiang, Wei Hubei Bailianhe Pumped Storage Co. Ltd Huanggang438600 China Huazhong University of Science and Technology Hubei Provincial Key Laboratory of Digital Watershed Science and Technology Wuhan430074 China Huaiyin Institute of Technology Jiangsu Key Laboratory of Advanced Manufacturing Technology Huai'an223003 China

ISBN: (纸本)9798350307023

The precision and effectiveness of diagnostic outcomes for rolling bearing faults are crucial for ensuring the reliability and safety of machinery. On the premise of this background, a time-varying filtering based empirical mode decomposition (TVFEMD) energy entropy and pathfinder algorithm (PFA) optimized least squares support vector machine (LSSVM) fault diagnosis method is proposed. Firstly, considering the significant fluctuations that vibration signals exhibit in complex operating conditions, TVFEMD is used to acquire several sets of IMFs. Secondly, to extract crucial information from IMF components that describes the state of the equipment, the energy entropy method can be served to construct the feature vectors that characterize essential fault information. Finally, based on the generated vectors and PFA-LSSVM, the fault classification can be implemented. Relevant experiments are systematically undertaken to elucidate the performance characteristics. The results conspicuously affirm the method's effectiveness and superiority in comparison of the existing approaches. © 2023 IEEE.

关键词： Empirical mode decomposition

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Chemical characteristics and sources apportionment of volatile organic compounds in the primary urban area of Shijiazhuang,North China Plain

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Journal of Environmental Sciences 2025年第3期149卷 465-475页

作者： Xiao Zhang Junfeng Wang Jiangwei Zhao Junliang He Yali Lei Kai Meng RuiWei Xue Zhang Miaomiao Zhang Shuangying Ni Eleonora Aruffo College of geographical sciences and Environment Shijiazhuang UniversityShijiazhuang 050035China Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Collaborative Innovation Center of Atmospheric Environment and Equipment TechnologySchool of Environmental Science and EngineeringNanjing University of Information Science and TechnologyNanjing 210044China Hebei Province Ecology Environmental Monitoring Center Shijiazhuang 050037China Key Lab of Geographic Information Science of the Ministry of Education School of Geographic SciencesEast China Normal UniversityShanghai 200241China Hebei Provincial Institute of Meteorological Sciences Shijiazhuang 050021China Key Laboratory of Meteorology and Ecological Environment of Hebei Province Shijiazhuang 050021China Hebei Provincial Academy of Ecological Environmental Science Shijiazhuang 050037China Department of Advanced Technologies in Medicine&Dentistry University“G.d’Annunzio”of Chieti-PescaraChieti 66100Italy Center for Advanced Studies and Technology-CAST Chieti 66100Italy

VOCs(Volatile organic compounds)exert a vital role in ozone and secondary organic aerosol production,necessitating investigations into their concentration,chemical characteristics,and source apportionment for the effective implementation of measures aimed at preventing and controlling atmospheric *** to October 2020,onlinemonitoringwas conducted in the main urban area of Shijiazhuang to collect data on VOCs and analyze their concentrations and ***,the PMF(positive matrix factorization)method was utilized to identify the VOCs *** indicated that the TVOCs(total VOCs)concentration was(96.7±63.4μg/m^3),with alkanes exhibiting the highest concentration of(36.1±26.4μg/m^3),followed by OVOCs(16.4±14.4μg/m^3).The key active components were alkenes and aromatics,among which xylene,propylene,toluene,propionaldehyde,acetaldehyde,ethylene,and styrene played crucial roles as reactive *** sources derived from PMF analysis encompassed vehicle emissions,solvent and coating sources,combustion sources,industrial emissions sources,as well as plant sources,the contribution of which were 37.80%,27.93%,16.57%,15.24%,and 2.46%,***,reducing vehicular exhaust emissions and encouraging neighboring industries to adopt low-volatile organic solvents and coatings should be prioritized to mitigate VOCs levels.

关键词： Volatile organic compounds Pollution characteristics Ozone formation potential OH radical loss rate Source apportionment

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Vitamin D binding protein in psychiatric and neurological disorders:Implications for diagnosis and treatment

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Genes & Diseases 2024年第5期11卷 324-334页

作者： Ling Li Bing Han Yan Kong Gaojia Zhang Zhijun Zhang Research Institution of Neuropsychiatry School of MedicineSoutheast UniversityNanjingJiangsu 210009China Department of Neurology Affiliated Zhongda HospitalNanjingJiangsu 210009China Department of Pharmacology Jiangsu Provincial Key Laboratory of Critical Care MedicineSchool of MedicineSoutheast UniversityNanjingJiangsu 210009China Department of Biochemistry and Molecular Biology School of MedicineSoutheast UniversityNanjingJiangsu 210009China Brain Cognition and Brain Disease Institute Department of Mental Health and Public HealthFaculty of Life and Health SciencesShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong 518055China

Vitamin D binding protein(VDBP)serves as a key transporter protein responsible for binding and delivering vitamin D and its metabolites to target *** plays a crucial part in the inflammatory reaction following tissue damage and is engaged in actin *** research has shed light on its potential role in various diseases,leading to a growing interest in understanding the implications of VDBP in psychiatric and neurological *** purpose of this review was to provide a summary of the existing understanding regarding the involvement of VDBP in neurological and psychiatric *** examining the intricate interplay between VDBP and these disorders,this review contributes to a deeper understanding of underlying mechanisms and potential therapeutic *** gained from the study of VDBP could pave the way for novel strategies in the diagnosis,prognosis,and treatment of psychiatric and neurological disorders.

关键词： Neurological disorder Polymorphism Psychiatric disorder Structure Vitamin D binding protein

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