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Advanced Functional Electromagnetic Shielding Materials:A Review Based on Micro‑Nano Structure Interface Control of Biomass Cell Walls 认领 引用 被引量：9
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作者 Yang Shi Mingjun Wu +14 位作者 Shengbo Ge Jianzhang Li Anoud Saud Alshammari Jing Luo Mohammed A.Amin Hua Qiu Jinxuan Jiang Yazeed M.Asiri Runzhou Huang Hua Hou Zeinhom M.El‑Bahy Zhanhu Guo Chong Jia Kaimeng Xu Xiangmeng Chen 《Nano-Micro Letters》 SCIE EI CAS CSCD 2025年第1期98-134,共37页
Research efforts on electromagnetic interference(EMI)shielding materials have begun to converge on green and sustainable biomass materials.These materials offer numerous advantages such as being lightweight,porous,and... Research efforts on electromagnetic interference(EMI)shielding materials have begun to converge on green and sustainable biomass materials.These materials offer numerous advantages such as being lightweight,porous,and hierarchical.Due to their porous nature,interfacial compatibility,and electrical conductivity,biomass materials hold significant potential as EMI shielding materials.Despite concerted efforts on the EMI shielding of biomass materials have been reported,this research area is still relatively new compared to traditional EMI shielding materials.In particular,a more comprehensive study and summary of the factors influencing biomass EMI shielding materials including the pore structure adjustment,preparation process,and micro-control would be valuable.The preparation methods and characteristics of wood,bamboo,cellulose and lignin in EMI shielding field are critically discussed in this paper,and similar biomass EMI materials are summarized and analyzed.The composite methods and fillers of various biomass materials were reviewed.this paper also highlights the mechanism of EMI shielding as well as existing prospects and challenges for development trends in this field. 展开更多
关键词 Biomass materials Electromagnetic interference shielding Micro-nano structure interface control Conductivity
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Mechanism of Qingre Yangyin Chushi Pill in the treatment of gout based on NLRP3/GSDMD pyroptosis pathway 认领 引用 被引量：2
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作者 Bo Wen Cong Ma +6 位作者 Qin Zhang Yang Shi Mi-Feng Liu Xiao-Meng Huo Wen Gu Pei-Pei Shao Ping Tang 《Drug Combination Therapy》 2020年第2期54-66,共13页
Background:The study was conducted with the interest of exploring the effects of Qingre Yangyin Chushi pill as anti-inflammatory agent in gout treatment based on the NLRP3/GSDMD coke death pathway.Methods:In this stud... Background:The study was conducted with the interest of exploring the effects of Qingre Yangyin Chushi pill as anti-inflammatory agent in gout treatment based on the NLRP3/GSDMD coke death pathway.Methods:In this study,48 male SD rats were randomly divided into 6 groups,namely model group,blank control group(BC),Qingre Yangyin Chushi pill low-dose treatment group(MSD1),medium-dose treatment group(MSD2),high-dose treatment group(MSD3),and colchicine group(PC),with eight members in each group.The BC and model groups were administered with saline twice a day.The MSD1,MSD2,and MSD3 groups were administered with Qingre Yangyin Chushi pill at a dose of 1.8 g·kg^?1,3.6 g·kg^?1,and 7.2 g·kg^?1 twice a day.The colchicine group was administered with a colchicine suspension at a dose of 0.6×10^?3 g kg^?1 twice a day for 7 days.After gavage of animals in each group for 4 days,the rats'ankle joints were injected with sodium urate suspension×3 days to induce a gouty arthritis model.Then,serum and tissue samples were collected on the third and seventh day after gavage.The synovial tissue from the rat ankle joints was taken,and immunohistochemical technique was used to detect NOD-like receptor protein 3(NLRP3),inflammatory bodies,cysteine protease-1(Caspase-1),and Gasdermin-D protein(GSDMD)expression.Image-Pro Plus image analysis system was used to measure the average integrated absorbance and calculate IHS.Integral enzyme-linked immunosorbent assay was used to determine the interleukin 1β(IL-1β)and interleukin 18(IL-18)expression of tumor necrosis factor-α(TNF-α).Western blot was used to detect NLRP3,Caspase-1,GSDMD,and apoptosis-associated speck-like protein containing a CARD(ASC)expression levels.Results:After 48 hours of modeling,compared with the PC group,the arthritis indices of the MSD1,MSD2,and MSD3 groups were insignificant(P>0.05).The levels of IL-1β,IL-18,and TNF-αwere lower in the PC and MSD2 groups compared with the BC group.However,compared with the control group,MSD1,MSD2,and PC groups had lower levels of IL-1βand IL-18.Regarding TNF-αlevels(P<0.05);compared with the PC group,the levels of IL-1β,IL-18,and TNF-αin MSD2 decreased more significantly(P<0.05).The levels of NLRP3,Caspase-1,GSDMD,ASC,IHS score,and mRNA were lower in the PC and MSD2 groups(P<0.05)compared with the control group.The MSD1 and MSD2 groups had lower levels of NLRP3,Caspase-1,GSDMD,ASC protein levels,IHS points,and mRNA levels(P<0.05)compared with the PC group.Moreover,NLRP3,Caspase-1,GSDMD,ASC protein levels,IHS points,and mRNA levels were more reduced in the MSD2 group(P<0.05).Conclusion:Qingre Yangyin Chushi pill can inhibit the activation of the NLPR3 inflammatory complex,reduce the production of GSDMD protein,regulate the occurrence of pyroptosis,reduce the expression of inflammatory factors,and thus reduce arthritis.All these processes are achieved through the NLRP3/GSDMD pathway. 展开更多
关键词 QingRe YangYin ChuShi pill Gout Inflammation GSDMD Pyroptosis Gouty arthritis
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Neural Network-Based Switching Output Regulation Control for High-Speed Nano-Positioning Stages 认领 引用 被引量：1
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作者 Hongwei Sun Ning Xing +4 位作者 Jiayu Zou Yuqi Rong Yang Shi Han Ding Hai-Tao Zhang 《Engineering》 SCIE EI CSCD 2026年第2期227-235,共9页
This study establishes a high-speed nano-positioning stage composed of a symmetrically driven structure with multiple parallel-bonded thin piezoelectric ceramic layers capable of performing micro-or nanoscale manipula... This study establishes a high-speed nano-positioning stage composed of a symmetrically driven structure with multiple parallel-bonded thin piezoelectric ceramic layers capable of performing micro-or nanoscale manipulations.Accordingly,a neural-network-based switching output regulation controller(NNSORC)was developed to compensate for the associated hysteresis nonlinearity.To address the challenges of slow floating-point computation speeds and low compilation efficiency,a closed-loop control system with a field-programmable gate array–central processing unit(FPGA–CPU)dual-layer data-processing framework was developed.A feedback linearization method was designed to linearize the hysteresis nonlinearity of the framework,resulting in a switching-tracking error system.With the assistance of Lyapunov theory and an average dwell time technique,sufficient conditions were derived to ensure the asymptotic stability of the NN-SORC governing closed-loop system using the switching reference signals often encountered in realistic micro-ano-scale detection and manufacturing processes.Finally,extensive comparative experiments were conducted to verify the effectiveness and superiority of the proposed NN-SORC scheme. 展开更多
关键词 High-speed nano-positioning stage Switched system Intelligent control Output regulation control
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Effective catalytic effects of Mo2C MXene on the hydrogen storage in magnesium hydride 认领 引用
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作者 Xiaojiao Wang Zhenluo Yuan +6 位作者 Yang Shi Shangsheng Li Guofa Mi Qiuming Peng Shumin Han Yanping Fan Baozhong Liu 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2026年第3期483-493,共11页
Magnesium hydride(MgH2)has received widespread attention because of its high hydrogen capacity and low cost,but the sluggish kinetics limited its practical application.Herein,the two-dimensional Mo2C MXene was c... Magnesium hydride(MgH2)has received widespread attention because of its high hydrogen capacity and low cost,but the sluggish kinetics limited its practical application.Herein,the two-dimensional Mo2C MXene was constructed to motivate the efficient hydrogen storage in MgH2for the first time.After doping 10 wt%Mo2C MXene,the starting dehydriding temperature was lowered to 225℃,presenting a 117℃ reduction compared with that of as-received MgH2.The 10 wt%Mo2C-containing MgH2sample could rapidly release 6.7 wt%H2in 13 min at 300℃,and the product after hydrogen release could absorb 6.0 wt%H2in 12 min at 200℃,showing superior hydriding and dehydriding kinetics.Moreover,the activation energy(Ea)of MgH2–10 wt%Mo2C(107.58±1.57 kJ/mol)was obviously lower than that of pure MgH2(130.45±1.97 kJ/mol),and the reduced activation energy explained the reduced dehydrogenation temperature and enhanced kinetics.Microstructure characterization revealed that Mo-species(Mo0and Mo2+)formed during ball milling served as active species accelerated the hydriding/dehydriding reactions,and the uniformly distributed active species and the interaction between Mo and O jointly promoted the hydrogen storage properties of MgH2. 展开更多
关键词 MgH2 Mo2C MXene Hydriding/dehydriding Kinetics
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Enhancing MPC methodology to system optimal control 认领 引用
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作者 Shaoyuan Li Dewei Li +1 位作者 Yang Shi Xiaoming Hu 《Control Theory and Technology》 EI CSCD 2026年第2期171-172,共2页
The original intention of Model Predictive Control(MPC)was to bridge the gap between advanced control theories and the application of complex practical engineering systems.Since its emergence in the 1970s,it has been ... The original intention of Model Predictive Control(MPC)was to bridge the gap between advanced control theories and the application of complex practical engineering systems.Since its emergence in the 1970s,it has been one of the core technologies in the Advanced Process Control(APC)system.Owing to its receding horizon optimization mechanism and capability to handle constraints,MPC has consistently attracted attention from both academia and industry,and has been successfully applied in numerous industries such as petrochemicals,metallurgy,pharmaceuticals,electric power,water treatment,and power electronics.According to statistics from the International Federation of Automatic Control and industrial data,MPC has been deployed in some form in more than 50% of large-scale industrial control systems worldwide. 展开更多
关键词 model predictive control mpc Advanced Process Control advanced control theories System Optimal Control complex practical engineering systemssince receding horizon optimization mechanism advanced process control apc systemowing bridge gap
3D printing of wet-bonded multilayer scaffolds for skin wound repair 认领 引用
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作者 Kangning SHEN Jingyi GU +9 位作者 Ximin YUAN Nian LIU Yinglin WANG Jiabin CAI Yang SHI Kaiyang WANG Xinghua YE Minghao YANG Zhiyong MA Zhijian XIE 《Journal of Zhejiang University-SCIENCE A》 SCIE EI CAS CSCD 2026年第6期625-639,I0059-I0064,共15页
The skin repair process is significantly influenced by the regulation of a dynamic mechanical microenvironment.However,traditional single-layer scaffolds face limitations,including poor mechanical compatibility and we... The skin repair process is significantly influenced by the regulation of a dynamic mechanical microenvironment.However,traditional single-layer scaffolds face limitations,including poor mechanical compatibility and weak interfacial adhesion.These drawbacks stem from their inability to mimic the multilayer heterogeneous structure and functional synergy of natural skin.In this paper,a biomimetic skin extracellular matrix(ECM)scaffold with a layered structure bio-polycaprolactone(PCL)skin(BPS)is proposed,consisting of three layers:a surface layer(SL),a support layer(PL),and a base layer(BL).The SL consists of a 3D-printed microporous PCL structure,which simulates the epidermal barrier’s antibacterial and breathable properties.The PL,a surface-modified multilayer PCL scaffold,mimics the dermal layer and provides essential mechanical support and elasticity.The BL,a hydrogel coated onto the surface of the PL,provides excellent biological properties.Genipin serves as a crosslinker,and ethylenediamine is used for amination treatment of the PCL scaffold surface.This chemical crosslinking strengthens interlayer connections,enhancing functional synergy and tripling the anti-swelling properties of the hydrogel.Additionally,it improves the wet adhesion of the scaffold to skin tissue,ensuring stable adherence to the wound surface.Compared to traditional scaffolds,this multilayer structure effectively integrates biological functions with mechanical performance,providing sustained protection and support during wound healing. 展开更多
关键词 3D printing Biomimetic skin Wet adhesive Polycaprolactone(PCL)modification Genipin
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Stability-guaranteed model predictive control for UAVs:A survey of the Lyapunov-based framework 认领 引用
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作者 Binyan XU Yufan DAI Yang SHI 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2026年第7期3-21,共19页
Unmanned Aerial Vehicles(UAVs)are increasingly deployed in safety-critical missions that demand advanced control strategies capable of addressing nonlinear dynamics,stringent constraints,and uncertain environments.Mod... Unmanned Aerial Vehicles(UAVs)are increasingly deployed in safety-critical missions that demand advanced control strategies capable of addressing nonlinear dynamics,stringent constraints,and uncertain environments.Model Predictive Control(MPC)has emerged as a powerful framework for these challenges,yet its finite-horizon nature requires additional stabilizing mechanisms to ensure reliable closed-loop performance.Among the existing stabilizing strategies,Lyapunov-based MPC has attracted significant attention for embedding explicit stability conditions into the optimization problem,providing a flexible and computationally efficient alternative to terminal-ingredient formulations.This paper provides a comprehensive survey of Lyapunovbased MPC for UAVs,examining its stabilizing mechanism and tracing its evolution from a theoretical tool to a practical framework.The survey classifies existing contributions according to control tasks,modeling fidelity,system architectures,stability assurance mechanisms,and validation strategies.Beyond a descriptive review,the survey critically analyzes fundamental limitations and deployment bottlenecks related to conservatism,assumptions,and real-time implementation.Finally,key research directions are outlined,focusing on reducing conservatism,improving scalability,enhancing robustness,and strengthening implementation-aware validation.These findings position Lyapunov-based MPC as a promising framework for next-generation UAV autonomy. 展开更多
关键词 Unmanned aerial vehicles Model predictive control Lyapunov-based MPC Stability-guaranteed control Nonlinear systems Closed-loop stability
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Detailed oil-source correlation within the sequence and sedimentary framework in the Fushan Depression,Beibuwan Basin,South China Sea 认领 引用 被引量：2
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作者 Xin Wang Mei-Jun Li +3 位作者 Yang Shi Hao Guo Bang Zeng Xi He 《Petroleum Science》 SCIE EI CAS CSCD 2025年第1期90-109,共20页
The Fushan Depression is one of the petroliferous depressions in the Beibuwan Basin,South China Sea.Previous studies have preliminarily explored the origin and source of crude oils in some areas of this depression.Nev... The Fushan Depression is one of the petroliferous depressions in the Beibuwan Basin,South China Sea.Previous studies have preliminarily explored the origin and source of crude oils in some areas of this depression.Nevertheless,no systematic investigations on the classification and origin of oils and hy-drocarbon migration processes have been made for the entire petroleum system in this depression,which has significantly hindered the hydrocarbon exploration in the region.A total of 32 mudstone and 58 oil samples from the Fushan Depression were analyzed to definite the detailed oil-source correlation within the sequence and sedimentary framework.The organic matter of third member of Paleogene Liushagang Formation(Els(3))source rocks,both deltaic and lacustrine mudstone,are algal-dominated with high abundance of C23tricyclic terpane and C304-methylsteranes.The deltaic source rocks occur-ring in the first member(Els1)and second member(Els2)of the Paleogene Liushagang Formation are characterized by high abundance of C19+20tricyclic terpane and oleanane,reflecting a more terrestrial plants contribution.While lacustrine source rocks of Els1and Els2display the reduced input of terrige-nous organic matter with relatively low abundance of C 19+20 tricyclic terpane and oleanane.Three types of oils were identified by their biomarker compositions in this study.Most of the oils discovered in the Huachang and Bailian Els1reservoir belong to group A and were derived from lacustrine source rocks of Els1and Els2.Group B oils are found within the Els1and Els2reservoirs,showing a close relation to the deltaic source rocks of Els1and Els2,respectively.Group C oils,occurring in the Els3 reservoirs,have a good affinity with the Els3 source rocks.The spatial distribution and accumulation of different groups of oils are mainly controlled by the sedimentary facies and specific structural conditions.The Els2reservoir in the Yong'an area belonging to Group B oil,are adjacent to the source kitchen and could be considered as the favorable exploration area in the future. 展开更多
关键词 Oil-source correlation Sequence stratigraphic framework Biomarkers Fushan depression South China Sea
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Lignin-derived carbon quantum dots:Advancing renewable nanomaterials for energy and photocatalysis 认领 引用 被引量：1
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作者 Tianyue Chen Lina Jia +5 位作者 Shiqi Xu Yang Shi Jinxuan Jiang Shengbo Ge Mashallah Rezakazemi Runzhou Huang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2025年第7期271-290,共20页
Carbon quantum dots are a new type of fluorescent nanomaterials with broad applications in drug delivery,bioimaging,solar cells,and photocatalysis due to their unique biocompatibility,optical properties and easy funct... Carbon quantum dots are a new type of fluorescent nanomaterials with broad applications in drug delivery,bioimaging,solar cells,and photocatalysis due to their unique biocompatibility,optical properties and easy functionalization.In the meantime,because of its high carbon content,renewable nature,and environmental friendliness,lignin has drawn the attention of researchers as a desirable raw material for creating carbon quantum dots.Here we review the synthesis of carbon quantum dots from lignin,focusing on synthetic methods,properties,and applications in energy,and photocatalysis.Later,we propose some new development prospects from preparation methods,luminescence mechanism research,application,and commercial cost of lignin carbon quantum dots.Finally,based on this,the development prospects of this field are prospected and summarized. 展开更多
关键词 Lignin Carbon quantum dots Optical Energy Photocatalysis
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Deep Synchronization Control of Grid-Forming Converters:A Reinforcement Learning Approach 认领 引用
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作者 Zhuorui Wu Meng Zhang +2 位作者 Bo Fan Yang Shi Xiaohong Guan 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2025年第1期273-275,共3页
Dear Editor,This letter proposes a deep synchronization control(DSC) method to synchronize grid-forming converters with power grids. The method involves constructing a novel controller for grid-forming converters base... Dear Editor,This letter proposes a deep synchronization control(DSC) method to synchronize grid-forming converters with power grids. The method involves constructing a novel controller for grid-forming converters based on the stable deep dynamics model. To enhance the performance of the controller, the dynamics model is optimized within the deep reinforcement learning(DRL) framework. Simulation results verify that the proposed method can reduce frequency deviation and improve active power responses. 展开更多
关键词 reduce frequency deviation enhance performance stable deep dynamics model improve active power responses deep reinforcement learning drl dynamics model deep synchronization control dsc deep synchronization control
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Abnormal expression and potential clinical value of oncogenic Krüppel-like factor-5 in lung squamous cell carcinoma 认领 引用
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作者 Yang Shi Wen-Li Sai +4 位作者 Jin-Liang Chen Li-Wei Qiu Min Yao Jun Zhao Deng-Fu Yao 《World Journal of Clinical Oncology》 2025年第10期215-233,共19页
BACKGROUND Krüppel-like factor-5(KLF5)is a zinc-finger transcription factor related to tumor progression.However,the relationship between KLF5 and lung cancer remains to be identified.AIM To investigate the clini... BACKGROUND Krüppel-like factor-5(KLF5)is a zinc-finger transcription factor related to tumor progression.However,the relationship between KLF5 and lung cancer remains to be identified.AIM To investigate the clinical value of KLF5 and interference with KLF5 mRNA transcription on the effects of biological behaviors in lung squamous-cell carcinoma(LUSC).METHODS Lung KLF5 mRNA data were extracted from bioinformatics databases.Blood and tissues from a cohort of patients with benign or malignant lung diseases were collected with ethical committee consent to validate KLF5 expression via multiplex immunofluorescence and immunohistochemistry,Western blot,Enzyme Linked Immunosorbent Assay or quantitative polymerase chain reaction.Furthermore,KLF5 mRNA was silenced in lung A549 cells to validate biological behaviors in vitro and nude mouse xenograft growth in vivo,respectively.RESULTS A cohort of bioinformatics databases revealed high KLF5 mRNA expression in LUSC(P<0.001)but lower KLF5 mRNA expression in lung adenocarcinoma.Upregulated KLF5 in the lung or sera of patients with lung cancer(P<0.001)were confirmed that related to poor differentiation,lymph node or distant metastasis.Furthermore,the incidence of KLF5 levels greater than 500 ng/mL in LUSC patients was 86.7%,which was significantly greater(P<0.001)than that in cases with benign lung diseases(13.3%)or healthy controls.Functionally,silencing KLF5 mRNA with a specific shRNA significantly suppressed A549 cell proliferation,decreased cell migration,increased the ratio of G2 phase cells in vitro,and inhibited the growth of nude mouse xenografts in vivo.CONCLUSION KLF5 is a novel diagnostic biomarker or potential therapeutic target for LUSC. 展开更多
关键词 Targeted therapy Xenograft growth Biological behaviors Diagnostic biomarker Lung adenocarcinoma Lung squamous-cell carcinoma Lung cancer Oncogenic Krüppel-like factor-5
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分层剪切式青花椒采摘装置设计与试验 认领 引用
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作者 何志远 杨仕 +5 位作者 杨明金 白得成 陈子文 蒲应俊 李守太 杨玲 《西南大学学报（自然科学版）》 CAS CSCD 北大核心 2026年第3期258-272,共15页
针对青花椒“下桩”采摘技术不成熟、劳动强度大、采摘效率低、适应性差等问题,设计了一种分层剪切式青花椒采摘装置。根据花椒枝和花椒果的几何特征与力学特性,采用了分层剪切脱果、带齿联合输运、双齿啮合拉拽等技术方案。对分层剪切... 针对青花椒“下桩”采摘技术不成熟、劳动强度大、采摘效率低、适应性差等问题,设计了一种分层剪切式青花椒采摘装置。根据花椒枝和花椒果的几何特征与力学特性,采用了分层剪切脱果、带齿联合输运、双齿啮合拉拽等技术方案。对分层剪切脱果装置、带齿联合输运装置等核心部件进行参数设计,通过单因素试验确定了往复式切割器平均切割速度、花椒枝喂入速度、拨齿下降速度3种工作参数的取值范围分别为:600~1000 mm/s、10~50 mm/s、20~100 mm/s。根据Box-Behnken设计法,进行3因素3水平正交试验,通过Design-Expert 13软件对试验结果进行优化求解,得到最优工作参数为:往复式切割器平均切割速度700 mm/s、花椒枝喂入速度28.19 mm/s、拨齿下降速度48.62 mm/s。针对单采摘通道工况,在最优工作参数下,进行“下桩”后花椒枝的采摘试验,试验结果为:采摘效率16.28 kg/h、采净率90.69%、伤果率7.37%,可以满足青花椒“下桩”采摘的要求。 展开更多
关键词 采摘机械 优化 青花椒 正交试验 分层剪切脱果 带齿联合输运
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基于ARDL模型的河流径流预测 认领 引用
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作者 徐文杰 朱良瀚 +3 位作者 杨适 俞阳 周天宇 王彦 《水利水电快报》 2026年第5期26-33,共8页
长江中游复杂的水文过程和频发极端气候事件对径流量预测构成挑战,解析关键水文断面间的流量动态耦合关系并构建径流预测模型,对揭示流域水文响应机制和优化水资源配置具有重要意义。基于长江中游5个关键水文断面(宜昌、沙市、监利、螺... 长江中游复杂的水文过程和频发极端气候事件对径流量预测构成挑战,解析关键水文断面间的流量动态耦合关系并构建径流预测模型,对揭示流域水文响应机制和优化水资源配置具有重要意义。基于长江中游5个关键水文断面(宜昌、沙市、监利、螺山、汉口)日尺度水文气象数据,通过整合上游来水量、区域降水、气温及断面历史流量数据,构建自回归分布滞后(Autoregressive Distributed Lag,ARDL)模型,定量解析断面间水流时滞响应特征,对径流进行预测。结果表明:上游来水流量、区域降雨和气温对下游断面日流量的影响存在1~5 d不等的滞后,且不同断面的主导滞后因子各异。在训练期,ARDL模型在5个断面的径流预测中均表现较好,确定系数R 2均超过99%,验证期的R 2均高于0.93,均方百分比误差均低于5%。该ARDL模型可为长江中游径流预测提供参考。 展开更多
关键词 径流预测 ARDL模型 时滞响应 长江中游
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Modulation of inactive Li2O via iodinated MOF nanocapsules interfacial transformation engineering for high-performance solid electrolyte interphase 认领 引用
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作者 Xingxing Zhang Qingmei Su +8 位作者 Gaohui Du Bingshe Xu Xuehan Hou Xiaowei Yang Weihao Shi Zhuo Chen Yang Shi Yujie Lv Wenhuan Huang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2025年第5期482-493,共12页
Lithium(Li)deposition and nucleation at solid electrolyte interphase(SEI)is the main origin for the capacity decay in Li metal batteries(LMBs).SEI conversion with enhanced electrochemical and mechanical properties is ... Lithium(Li)deposition and nucleation at solid electrolyte interphase(SEI)is the main origin for the capacity decay in Li metal batteries(LMBs).SEI conversion with enhanced electrochemical and mechanical properties is an effective approach to achieve uniform nucleation of Li+and stabilize the lithium metal anode.However,complex interfacial reaction mechanisms and interface compatibility issues hinder the development of SEI conversion strategies for stabilizing lithium metal anodes.Herein,we presented the release of I3-in–NH2-modified metal–organic frameworks for a Li metal surface SEI phase conversion strategy.The–NH2group in MOF pores induced the formation of I3-from I2,which was further spontaneously reacted with inactive Li2O transforming into high-performance LiI and LiIO3interphase.Furthermore,theoretical calculation provided deeply insight into the unique reconstructed interfacial formation and electrochemical mechanism of rich LiI and LiIO3SEI.As a result,the Li+deposition and nucleation were improved,facilitating the transport kinetics of Li+and inhibiting the growth of lithium dendrites.The assembled solid-state Li||LiFePO4full cells exhibited superior long-term stability of 800 cycles and high Coulombic efficiency(>99%),Li||LiNi0.8Co0.1Mn0.1O2pouch cell also displayed superior practical performance over 200 cycles at 2 C,high loading of 5 mg cm-2and safety performance.This innovative SEI design strategy promotes the development of high-performance solid-state Li metal batteries. 展开更多
关键词 Solid electrolyte interphase(SEI) SEI phase conversion MOF Nano-capsule Solid-state electrolytes Li metal battery
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On the stability criteria for constrained switched linear systems with multiple faults 认领 引用
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作者 Tianyu Tan Kunwu Zhang +2 位作者 Keyong Shao Songlin Zhuang Yang Shi 《Journal of Automation and Intelligence》 CSCD 2025年第3期185-197,共13页
Switched systems play an imperative role in modeling many real industrial systems with abrupt changes.Due to possible exposure to unreliable and complex physical environments,switching dynamics may simultaneously face... Switched systems play an imperative role in modeling many real industrial systems with abrupt changes.Due to possible exposure to unreliable and complex physical environments,switching dynamics may simultaneously face multiple faults,including the unexpected controller disconnect,the temporary mismatch between subsystems and desired corresponding controllers,and the intermittent disordering of mode transitions.These commonly arising faults may result in severe and detrimental impacts on the reliability and convergence of the closed-loop solution,thereby bringing significant yet challenging issues to be tackled.This paper provides the first attempt to investigate the stabilization problem for a class of constrained switched linear systems with multiple faults under mode-dependent dwell time(MDT).From a set-theory perspective,we demonstrate a critical necessary and sufficient stability condition for switched systems without uncertainties.Moreover,the non-conservative stability criterion is further extended to the perturbed switched systems with rigorous proof.A switching communication network example verifies the validity of the theoretical result and demonstrates their advantages. 展开更多
关键词 Necessary and sufficient stability Constrained switched systems Fault-tolerant control Set invariance Robustness Mode-dependent dwell time
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基于城市分类的成渝城市群能源碳排放效率核算及影响因素分析 认领 引用 被引量：3
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作者 牟琴 李敏 +5 位作者 徐文杰 俞阳 赵锐 闵雪峰 杨适 朱良瀚 《长江流域资源与环境》 CAS CSSCI CSCD 北大核心 2025年第10期2185-2195,共11页
我国碳排放量随着经济的扩张而上升,提高城市碳排放效率是平衡经济增长和环境保护的关键。首先采用超效率SBM模型核算了成渝城市群2005~2022年的能源碳排放效率,分析了其时空演变特征。随后,基于构建的能源碳排放效率影响因素指标体系... 我国碳排放量随着经济的扩张而上升,提高城市碳排放效率是平衡经济增长和环境保护的关键。首先采用超效率SBM模型核算了成渝城市群2005~2022年的能源碳排放效率,分析了其时空演变特征。随后,基于构建的能源碳排放效率影响因素指标体系对成渝城市群16个城市进行了分类。在此基础上,采用空间面板模型分析了不同类型城市的能源碳排放效率影响因素。结果表明:2005~2022年,成渝城市群的碳排放总量逐年增加,年均增长率为3.92%;成渝城市群的逐年能源碳排放效率呈先下降后波动上升趋势。绵阳、宜宾和南充的能源碳排放效率与经济发展水平不协调;成渝城市群的能源碳排放效率呈核心高-外围低的差异化分布模式,且存在多极化现象,表现在成都和重庆为高值区域,周围城市为低值区域;经济发展、产业结构、能源强度和人口分布是影响成渝城市群各类城市能源碳排放效率提升的共性因素,而投资规模、空间布局和城市规划对城市能源碳排放效率的影响会因城市类型和发展阶段不同而存在差异。研究结果为城市碳减排提供了技术支撑,也为成渝城市群及其他城市群的低碳发展提供了政策建议。 展开更多
关键词 成渝城市群 能源碳排放效率 Super-SBM模型 时空特征 城市分类 影响因素
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跨区域“揭榜挂帅”的主体特征与网络结构研究 认领 引用 被引量：7
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作者 朱浩 杨诗 罗文竹 《科技进步与对策》 CSSCI 北大核心 2025年第5期82-93,共12页
“揭榜挂帅”具有集中力量办大事和跨区域选拔双重优越性,已成为优化配置创新资源、加速破解“卡脖子”技术难题的重要方式和政策实践。通过建立跨区域“揭榜挂帅”数据库,揭示跨区域“揭榜挂帅”主体特征,并对跨区域“揭榜挂帅”网络... “揭榜挂帅”具有集中力量办大事和跨区域选拔双重优越性,已成为优化配置创新资源、加速破解“卡脖子”技术难题的重要方式和政策实践。通过建立跨区域“揭榜挂帅”数据库,揭示跨区域“揭榜挂帅”主体特征,并对跨区域“揭榜挂帅”网络结构进行研究。结果发现,各省份跨区域“揭榜挂帅”揭榜率存在较大差异,跨区域揭榜率整体偏低;企业是跨区域“揭榜挂帅”的主体,主要由中大型企业发布技术需求、技术创新活力较强的中小型企业解决需求,揭榜联合体以“内外配合”为主;跨区域揭榜网络呈现“扁平层级+圈层交互”特点,核心圈层省份展现单核辐射实力,中间圈层省份发挥以强带弱功能,边缘圈层省份缺乏抱团取暖行动。最后,针对更好实施“揭榜挂帅”以促进创新资源跨区域流动和配置提出政策建议。 展开更多
关键词 跨区域“揭榜挂帅” 主体特征 网络结构
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采用改进YOLOv8-Seg推理复杂堆叠场景青花椒枝抓取次序 认领 引用 被引量：1
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作者 杨仕 唐举 +5 位作者 白得成 杨明金 何江东 蒲应俊 陈子文 杨玲 《农业工程学报》 EI CAS CSCD 北大核心 2025年第24期210-219,共10页
南方青花椒普遍采用“下桩”采摘方案,枝剪后的花椒枝(含枝、果、叶等)形成复杂的堆叠场景。针对该堆叠场景,“下桩”采摘的花椒采摘机存在花椒枝识别、定位困难以及抓取效率低所导致的自动化程度不高等问题,该研究提出一种花椒枝抓取... 南方青花椒普遍采用“下桩”采摘方案,枝剪后的花椒枝(含枝、果、叶等)形成复杂的堆叠场景。针对该堆叠场景,“下桩”采摘的花椒采摘机存在花椒枝识别、定位困难以及抓取效率低所导致的自动化程度不高等问题,该研究提出一种花椒枝抓取次序推理方法。对YOLOv8-Seg模型进行改进,在主干网络中P4和P5特征层对应的C2f模块特征拼接前,引入CBAM(convolutional block attention module)模块。通过自适应调整特征图的关注权重,增强模型对多尺度信息的感知能力,以提高模型对不同空间位置目标的特征整合能力。其次,用ASPP(atrous spatial pyramid pooling)模块替换了主干网络中的SPPF(spatial pyramid pooling-fast)模块,以提升模型在局部与全局尺度上的特征表达能力。最后,基于花椒枝复杂的堆叠场景,该研究提出一种抓取评分函数,并基于贝叶斯优化方法获得优化后的距离权重系数、掩膜完整性权重系数和牵连风险性权重系数分别为0.797、0.183和0.020,然后结合深度信息计算抓取分数,推理出最优抓取次序。试验结果表明,改进模型平均交并比和平均像素准确率指标分别达到了86.68%和91.04%。精确率、召回率和综合F1分数分别达到了95.70%、91.04%和92.82%。相较于原模型,分别提升了9.74、9.75和4.99个百分点。该研究提出的抓取次序推理方法可应用于智能花椒采摘机的抓取次序推理,为自动化花椒采摘设备的设计和优化提供重要参考。 展开更多
关键词 图像处理 花椒枝 深度学习 抓取策略 函数优化 YOLOv8-Seg 青花椒
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A recurrent neural network approach for discrete-form stewart platform control with disturbance rejection 认领 引用
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作者 Yang Shi Yueyang Ma +2 位作者 Liangming Chen Dimitrios K.Gerontitis Long Jin 《CAAI Artificial Intelligence Research》 2025年第1期45-53,共9页
Recurrent neural networks(RNNs)have been employed extensively as intelligent control approaches across various industrial control fields.However,existing research often lacks sufficient focus on discrete-form time-var... Recurrent neural networks(RNNs)have been employed extensively as intelligent control approaches across various industrial control fields.However,existing research often lacks sufficient focus on discrete-form time-variant problems and disturbance rejection capability.This paper proposes a novel discrete-form integral-reinforcing RNN(DF-IR-RNN)approach.This approach integrates an innovative integral-reinforcing RNN(IR-RNN)design thought into the RNN approach to enhance the disturbance rejection capability in controlling the Stewart platform under discrete-form time-variant environment.Compared to traditional approaches,the proposed approach overcomes their limitations of disturbance rejection.The experimental results demonstrate that the proposed approach is highly effective in disturbance rejection and accurate trajectory tracking. 展开更多
关键词 recurrent neural networks(RNNs) Stewart platform discrete-form time-variant problem disturbance rejection
伽马射线辐照对有机玻璃真空沿面绝缘性能的影响 认领 引用
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作者 周亚伟 杨实 +5 位作者 呼义翔 何德雨 钟爱旭 尹佳辉 罗维熙 李元 《绝缘材料》 CAS 北大核心 2025年第5期81-88,共8页
辐射环境模拟装置用绝缘材料长期受射线辐照会对其真空沿面绝缘性能产生重要影响。通过对聚甲基丙烯酸甲酯(PMMA)材料开展不同剂量伽马射线辐照老化实验,研究PMMA材料表面微观形貌及电性能参数随伽马射线辐照剂量的变化规律。结果表明:... 辐射环境模拟装置用绝缘材料长期受射线辐照会对其真空沿面绝缘性能产生重要影响。通过对聚甲基丙烯酸甲酯(PMMA)材料开展不同剂量伽马射线辐照老化实验,研究PMMA材料表面微观形貌及电性能参数随伽马射线辐照剂量的变化规律。结果表明:低剂量(0.1kGy)伽马射线辐照时,材料表面陷阱分布是影响PMMA真空沿面耐压特性的主要因素,PMMA真空沿面老练电压相比未辐照试样提升了11.7%;高剂量(大于1.0kGy)伽马射线辐照时,PMMA材料表面出现孔洞,局部电场强度发生畸变,成为真空沿面绝缘的“薄弱区域”。适当剂量的伽马射线辐照有助于提升PMMA的真空沿面绝缘性能。 展开更多
关键词 有机玻璃 伽马辐照 真空沿面 绝缘
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