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Earthquake Science 2025年第1期38卷 17-32页

作者： Yeyang Kuang jiangtao Li School of Geodesy and Geomatics Wuhan UniversityWuhan 430079China Hubei Luojia Laboratory Wuhan 430079China

The Main Himalayan Thrust(MHT),where the 2015 MW7.8 Gorkha earthquake occurred,features the most seismicity of any structure in *** structural complexity of the MHT makes it difficult to obtain a definitive interpretation of deep seismogenic *** application of new methods and data in this region is necessary to enhance local seismic hazard *** this study,we used a well-designed machine learning-based earthquake location workflow(LOC-FLOW),which incorporates machine learning phase picking,phase association,absolute location,and double-difference relative location,to process seismic data collected by the Hi-CLIMB and NAMASTE seismic *** built a high-precision earthquake catalog of both the quiet-period and aftershock seismicity in this *** seismicity distribution suggests that the quietperiod seismicity(388 events)was controlled by a mid-crustal ramp and the aftershock seismicity(12,669 events)was controlled by several geological structures of the *** higher-level detail of the catalogs derived from this machine learning method reveal clearer structural characteristics,showing how the flat-ramp geometry and a possible duplex structure affect the depth distribution of the seismic events,and how a tear fault changes this distribution along strike.

关键词： aftershock seismicity 2015 Gorkha earthquake machine learning flat-ramp geometry tear fault

Mutual-structure weighted guided image filtering for depth map restoration

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Optoelectronics Letters 2025年第1期21卷 51-56页

作者： LIU Zijian SONG Jian CHEN Quanmin XU jiangtao Tianjin Key Laboratory of Imaging and Sensing Microelectronic Technology School of MicroelectronicsTianjin UniversityTianjin 300072China Spikesee Technology Co. Ltd.Beijing 100083China

Although guided image filtering(GIF) is known for preserving edges and fast computation,it may produce inaccurate outputs in depth map *** this paper,a novel confidence-weighted GIF called mutual-structure weighted GIF(MSWGIF) is proposed,which replaces the mean filtering strategy in GIF during handling overlapping *** confidence value is composed of a depth term and a mutual-structure term,where the depth term is utilized to protect the edges of the output,and the mutual-structure term helps to select accurate windows during the structure characteristics of the guidance image are transferred to the *** results show that MSWGIF reduces the root mean square error(RMSE) by an average of 12.37%,and the average growth rate of correlation(CORR) is 0.07% on ***,the average growth rate of structure similarity index measure(SSIM) is 0.34%.

关键词： filtering image mutual

Analysis and solution of streak effect in high dynamic range CMOS image sensors

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Science China(Information Sciences) 2025年第1期68卷 402-403页

作者： Wanbin ZHA jiangtao XU Jinghua AO Kaiming NIE Zhiyuan GAO School of Microelectronics Tianjin University Tianjin Key Laboratory of Imaging and Sensing Microelectronic Technology Tianjin University

The high dynamic range (HDR) CMOS image sensor has been widely used in many fields,such as autonomous driving and security guarding [1].The dual conversion gain (DCG)structure,which adjusts the conversion gain (CG) by changing the capacitors connected to the floating diffusion (FD)nodes in the pixel,is an effective and prevalent method for realizing HDR imaging [2].While the DCG structure can extend the dynamic range,in the practical HDR imaging process,the substantial number of photo-generated electrons in bright areas can cause significant voltage variations in the pixel *** variations affect the gray values in darker areas of the same image,leading to the streak effect [3].This study primarily investigates the streak effect caused by forward conduction current of the PN junction in DCG pixels,and proposes a circuit to suppress this effect.

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Transforming growth factor-beta 1 enhances discharge activity of cortical neurons

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Neural Regeneration Research 2025年第2期20卷 548-556页

作者： Zhihui Ren Tian Li Xueer Liu Zelin Zhang Xiaoxuan Chen Weiqiang Chen Kangsheng Li jiangtao Sheng Department of Microbiology and Immunology Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular ImmunopathologyShantou University Medical CollegeShantouGuangdong ProvinceChina Department of Neurosurgery First Affiliated Hospital of Shantou University Medical CollegeShantouGuangdong ProvinceChina

Transforming growth factor-beta 1(TGF-β1)has been extensively studied for its pleiotropic effects on central nervous system *** neuroprotective or neurotoxic effects of TGF-β1 in specific brain areas may depend on the pathological process and cell types ***-gated sodium channels(VGSCs)are essential ion channels for the generation of action potentials in neurons,and are involved in various neuroexcitation-related ***,the effects of TGF-β1 on the functional properties of VGSCs and firing properties in cortical neurons remain *** this study,we investigated the effects of TGF-β1 on VGSC function and firing properties in primary cortical neurons from *** found that TGF-β1 increased VGSC current density in a dose-and time-dependent manner,which was attributable to the upregulation of Nav1.3 *** VGSC current density and Nav1.3 expression were significantly abolished by preincubation with inhibitors of mitogen-activated protein kinase kinase(PD98059),p38 mitogen-activated protein kinase(SB203580),and Jun NH2-terminal kinase 1/2 inhibitor(SP600125).Interestingly,TGF-β1 significantly increased the firing threshold of action potentials but did not change their firing rate in cortical *** findings suggest that TGF-β1 can increase Nav1.3 expression through activation of the ERK1/2-JNK-MAPK pathway,which leads to a decrease in the firing threshold of action potentials in cortical neurons under pathological ***,this contributes to the occurrence and progression of neuroexcitatory-related diseases of the central nervous system.

关键词： central nervous system cortical neurons ERK firing properties JNK Nav1.3 p38 transforming growth factor-beta 1 traumatic brain injury voltage-gated sodium currents

Emerging natural clay-based materials for stable and dendrite-free lithium metal anodes: A review

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Chinese Chemical Letters 2025年第2期36卷 161-172页

作者： Haobo Wang Fei Wang Yong Liu Zhongxiu Liu Yingjie Miao Wanhong Zhang Guangxin Wang jiangtao Ji Qiaobao Zhang School of Materials Science and Engineering Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal new Materials and Advanced Processing Technology Henan University of Science and Technology Faculty of Engineering Huanghe Science and Technology University Henan Key Laboratory of Non-Ferrous Materials Science & Processing Technology Henan University of Science and Technology College of Agricultural Equipment Engineering Henan University of Science and Technology State Key Laboratory of Physical Chemistry of Solid Surfaces College of Materials Xiamen University

Lithium metal is one of the most promising anodes for lithium batteries because of their high theoretical specific capacity and the low electrochemical potential. However, the commercialization of lithium metal anodes(LMAs) is facing significant obstacles, such as uncontrolled lithium dendrite growth and unstable solid electrolyte interface, leading to inferior Coulombic efficiency, unsatisfactory cycling stability and even serious safety issues. Introducing low-cost natural clay-based materials(NCBMs) in LMAs is deemed as one of the most effective methods to solve aforementioned issues. These NCBMs have received considerable attention for stabilizing LMAs due to their unique structure, large specific surface areas, abundant surface groups, high mechanical strength, excellent thermal stability, and environmental friendliness. Considering the rapidly growing research enthusiasm for this topic in the last several years, here, we review the recent progress on the application of NCBMs in stable and dendrite-free *** different structures and modification methods of natural clays are first summarized. In addition, the relationship between their modification methods and nano/microstructures, as well as their impact on the electrochemical properties of LMAs are systematically discussed. Finally, the current challenges and opportunities for application of NCBMs in stable LMAs are also proposed to facilitate their further development.

关键词： Aolid-state electrolyte Li metal anodes Natural clay-based materials Rechargeable batteries Surface modification

Deformation properties of remolded loess compacted via vertical vibration compaction method

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Journal of Traffic and Transportation Engineering(English Edition) 2025年第01期 123-138页

作者： Yingjun Jiang Kejia Yuan jiangtao Fan Chenfan Bai Wei Zhang Jinshun Xue Key Laboratory for Special Area Highway Engineering of Ministry of Education Chang'an University School of Automobile and Traffic Engineering Xihua University

To investigate the deformation properties of remolded loess subgrade under long-term cyclic dynamic loading, remolded loess specimens compacted via vertical vibration compaction method were produced and some factors influencing elastic strain and cumulative plastic strain, which include the number of vibration cycles, depth, and water content, have been investigated. A prediction model for cumulative plastic deformation was established. In addition, the collapsible deformation properties of remolded loess were investigated. Results indicate that the elastic strain and plastic strain are decreased with increasing vibration cycles and depth and finally tend to be stable when the number of vibration cycles is more than 2000 and the depth exceeds 2.5 m. The elastic strain and cumulative plastic strain of compacted loess are increased by 7.2% and 13.0%, respectively,when the water content increases by 1.0%. The cumulative plastic deformation of remolded loess follows a logarithmic distribution. The elastic deformation and cumulative plastic deformation of loess subgrade are far less than the demands for elastic deformation and post-construction settlement of subgrade. As the compaction coefficient and water content are increased by 1.0%, the collapsibility coefficient of compacted loess is decreased by an average of 13.7% and 14.5%. Such investigations can prevent subgrade diseases and ensure the safety of subgrade filled with loess soils.

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High-performance transparent graphene-based antennas

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Science China(Technological Sciences) 2025年第2期68卷 306-314页

作者： Chaoye HONG Lusong WEI Weijia WANG Youmei TANG Qinghai ZHU jiangtao HUANGFU Mingsheng XU College of Integrated Circuits State Key Laboratory of Silicon and Advanced Semiconductor MaterialsZhejiang UniversityHangzhou 310027China College of Information Science and Electronic Engineering Zhejiang UniversityHangzhou 310027China

With the continuous development of wireless communication technology,applications in the military,aerospace,and vehicle wireless communication sectors have demanded miniaturized and aesthetically pleasing *** antennas,which combine the advantages of optical and radio-frequency(RF)technologies,have become a popular research ***,existing transparent antennas often suffer from complex preparation processes,fragile materials,poor conductivity,and low optical ***,we develop hybrid conductive thin films using graphene and silver nanowires,achieving a transmittance of 86% and a sheet resistance of 7.8Ω/sq with high environmental *** demonstrate the suitability of this nanocomposite in two applications:a transparent ultrahigh-frequency RF-identification tag folded dipole antenna and a transparent X-band microwave half-wave dipole *** antennas offer high gain,high radiation efficiency,and small size,indicating that transparent graphene-based antennas have remarkable potential for intelligent information sensor systems.

关键词： antenna transparent RFID small size graphene silver nanowires

Feasible synthesis of porous h-BN by Mg^(2+)induced lattice dislocations for hydrogen and ammonia storage

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Nano Research 2025年第1期18卷 94-99页

作者： Xiaojia Huang Zihao Wang Yihan Kong Li Jiang Baolin Wang jiangtao Jia Heping Ma Guangshan Zhu Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal UniversityChangchun 130024China School of Chemical Engineering and Technology Xi’an Jiaotong University Xi’an 710049China

Hexagonal boron nitride(h-BN)is a two-dimensional(2D)layered material with a structure similar to graphite and it has potential as a hydrogen and ammonia storage ***,dense packing in the standard h-BN structure limits its surface area and prevents the B and N from being adsorption *** this study,the addition of Mg^(2+)during h-BN synthesis facilitated the growth of lattice dislocations and led to a crosslinked three-dimensional(3D)porous structure.A proposed formation mechanism for porous h-BN was confirmed by several characterization routes,most clearly by high-resolution transmission electron microscopy(HRTEM).Porous Mg/BNs exhibited high H_(2)and NH_(3)uptakes and showed potential for H_(2)and NH_(3)storage.

关键词： hexagonal boron nitride porous material dislocation gas storage

Voxel event graph neural network for event-based human gait recognition

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Optoelectronics Letters 2025年

作者： MA Guangyuan GONG Xiaolin XU jiangtao GAO Jiandong GUO Zhaoxuan School of Microelectronics， Tianjin University

To improve the accuracy of event-based gait recognition， a method called voxel event graph neural network (VEGNN) is proposed. This method voxelizes the event stream and selects representative voxels as vertices of the graph. Then the edges are constructed based on spatio-temporal distance and temporal order constraints so that the event stream is constructed as a graph structure. Finally， a lightweight feature extraction network based on graph neural networks (GNNs) is used to efficiently capture spatio-temporal information and motion cues from the event graph. To evaluate our method， an event-based gait recognition dataset called Celex-Gait is created. Experimental results show that VEGNN achieves a gait recognition accuracy of 95.8% (best among all methods) and 93.9% (second best among all methods) on the Celex-Gait dataset and the DVS128-Gait-Day dataset， respectively. Furthermore， compared to the state-of-the-art methods， VEGNN reduces the number of model parameters by 30%. This indicates that VEGNN achieves higher recognition accuracy with lower model complexity.

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Temperature-sensitive hydrogel inhibits VEGFA-dependent neovascularization in atherosclerosis progression

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Science China Materials 2025年第1期68卷 280-291页

作者： Yi Duan jiangtao Lin Jiang Yue Yuanyuan Li Jinghan Liao Ying Sun Quan Wang Yourong Duan Zhaojun Li State Key Laboratory of Systems Medicine for Cancer Shanghai Cancer InstituteRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200032China Department of Ultrasound Shanghai General HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200080China Department of Endocrinology and Metabolism Renji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200127China

Atherosclerosis remains a major cause of morbidity and mortality *** neovascularization critically promotes atherosclerotic progression and *** endothelial growth factor A(VEGFA)stimulates aberrant microvessel growth in plaques by inducing endothelial cell proliferation and *** epithelium-derived factor(PEDF)potently inhibits VEGFA-dependent *** study introduces a thermosensitive hydrogel(PFSgel)developed from poloxamer 407(F127)and sodium alginate(SA)to deliver PEDF locally to atherosclerotic *** PFSgel demonstrated a suitable liquid-solid transition at body temperature(37°C),then forming a stable 3D network structure after SA gelling with the Ca2+in the physiological environment which contributed to the character of controlled *** analysis confirmed its phase transition temperature of 28.7°C and notable self-healing properties,making it ideal for dynamic vascular *** vitro experiments showed that PFSgel could suppress VEGFA-induced endothelial cells’proliferation and migration through modulation of CD31 and MMP-2/MMP-9 ***,in vivo degradation test validated the controlled release pattern of *** Apoedeficient atherosclerotic mice,ultrasound-guided PFSgel injection onto the abdominal aorta enabled gradual in situ release of encapsulated *** effectively reduced plaque burden,neovascularization,and luminal stenosis,even with exogenous VEGFA *** analyses confirmed reduced lipid deposition,plaque area,and neovascularization within ***,this novel in situforming PEDF delivery platform enables targeted suppression of pathological neovascularization via CD31 and MMP-2/MMP-9 pathways,representing a promising approach to stabilize high-risk plaques by intervening against VEGFA-dependent neovascularization.

关键词： vascular endothelial growth factor A neovascularization advanced atherosclerosis thermosensitive hydrogel ultrasound