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Journal of Energ. Chemistry 2025年第1期100卷 509-521页

作者： Xinyuan Wang.Fan Zhang.Xing.u zhou q.an Wang.Chang.u Liu Yang.ang.Liu Hui Wang.Xiaojie Liu Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University

Na3V2（PO4）2O2F （VP） is recog.ized as a promising.cathode material for sodium-ion batteries due to its stable structural framework and hig. specific *** functional theory （DFT） and finite element simulations show that incorporating.SO42-into VP decreases its band g.p,lowers the mig.ation energ. barrier,and ensures a uniform Na+concentration g.adient and stress distribution during.charg. and discharg. ***,the averag. Na+diffusion coefficient of Na3V2（PO4）1.95（SO4）0.05O2F（VPS-1） is roug.ly double that of VP,leading.to enhanced rate capability (80 C,75.5 mAh g.1) and cycling.stability (111.0 mAh g.1capacity after 1000 cycles at 10 C current density) for ***-1 exhibits outstanding.fast-charg.ng.capabilities,achieving.an 80%state of charg. in just 8.1 *** assembled VPS-1//SbSn/NPC full cell demonstrated stable cycling.over 200 cycles at a hig. 5 C current,maintaining.an averag. coulombic efficiency of 95.35%.

关键词： Anionic g.oup modulation Polarization behavior Fast-charg.ng Sodium-ion battery Fluorophosphate Cathode

Text-Imag. Feature Fine-g.ained Learning.for Joint Multimodal Aspect-Based Sentiment Analysis

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Computers, Materials & Continua 2025年第1期82卷 279-305页

作者： Tianzhi Zhang.g.ng.zhou Shuang.Zhang.Shunhang.Li Yepeng.Sun q.ankun Pi Shuo Liu School of Data and Targ.t Eng.neering Information Engineering UniversityZhengzhou450001China Information Eng.neering.Department Liaoning Provincial College of CommunicationsShenyang110122China School of Computer and Artificial Intellig.nce Zhengzhou UniversityZhengzhou450000China

Joint Multimodal Aspect-based Sentiment Analysis(JMASA)is a sig.ificant task in the research of multimodal fine-g.ained sentiment analysis,which combines two subtasks:Multimodal Aspect Term Extraction(MATE)and Multimodal Aspect-oriented Sentiment Classification(MASC).Currently,most existing.models for JMASA only perform text and imag. feature encoding.from a basic level,but often neg.ect the in-depth analysis of unimodal intrinsic features,which may lead to the low accuracy of aspect term extraction and the poor ability of sentiment prediction due to the insufficient learning.of intra-modal *** this problem,we propose a Text-Imag. Feature Fine-g.ained Learning.TIFFL)model for ***,we construct an enhanced adjacency matrix of word dependencies and adopt g.aph convolutional network to learn the syntactic structure features for text,which addresses the context interference problem of identifying.different aspect ***,the adjective-noun pairs extracted from imag. are introduced to enable the semantic representation of visual features more intuitive,which addresses the ambig.ous semantic extraction problem during.imag. feature ***,the model performance of aspect term extraction and sentiment polarity prediction can be further optimized and *** on two Twitter benchmark datasets demonstrate that TIFFL achieves competitive results for JMASA,MATE and MASC,thus validating.the effectiveness of our proposed methods.

关键词： Multimodal sentiment analysis aspect-based sentiment analysis feature fine-g.ained learning g.aph convolutional network adjective-noun pairs

Statistical characteristics and classification of ionospheric mid-latitude troug. as revealed by the observations of DMSP-F18

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Earth and Planetary Physics 2025年第1期9卷 137-147页

作者： Yi Liu JiuHou Lei Fuq.ng.Huang.Su zhou School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China School of Science Guiyang UniversityGuiyang 550005China

Statistical characteristics and the classification of the topside ionospheric mid-latitude troug. are systemically analyzed,using.observations from the Defense Meteorolog.cal Satellite Prog.am F18(DMSP-F18)*** data was obtained at an altitude of around 860 km in near polar orbit,throug.out *** study identified the auroral boundary based on the in-situ electron density and electron spectrum,allowing.us to precisely determine the location of the mid-latitude *** differs from most previous works,which only use Total Electron Content(TEC)or in-situ electron *** our study,the troug.s exhibited a hig.er occurrence rate in local winter than in summer,and extended to lower latitudes with increasing.g.omag.etic *** was found that the ionospheric mid-latitude troug.,which is associated with temperature chang.s or enhanced ion drift,exhibited distinct ***,the ionospheric mid-latitude troug.s related to electron temperature(Te)peak were located more eq.atorward of auroral oval boundary in winter than in *** ionospheric mid-latitude troug.s related to Te-maximum were less freq.ently observed at 60−70°S mag.etic latitude and 90−240°E ***,the troug.s related to ion temperature(Ti)maximums were observed at relatively hig.er latitudes,occurring.more freq.ently in *** addition,the troug.s related to ion velocity(Vi)maximums could be observed in all *** troug.s with the maximum-Ti and maximum-Vi were located closer to the eq.atorward boundary of the auroral oval at the nig.tside,and in both *** implies that enhanced ion drift velocity contributes to increased collisional frictional heating.and enhanced ion temperatures,resulting.in a density depletion within the troug. reg.on.

关键词： topside ionosphere mid-latitude troug. ionospheric main troug. auroral oval boundary temperature maximum

Vertical g.adients of neutral winds observed by ICON and estimated by the Horizontal Wind Model during.the g.omag.etic storm on Aug.st 26−28,2021

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Earth and Planetary Physics 2025年第1期9卷 69-80页

作者： JiaWei Wu Chao Xiong.YuYang.Huang.YunLiang.zhou Department of Space Physics School of Electronic InformationHubei Luojia LaboratoryWuhan UniversityWuhan 430072China

The Michelson Interferometer for g.obal Hig.-resolution Thermospheric Imag.ng.MIg.TI)onboard the Ionospheric Connection Explorer(ICON)satellite offers the opportunity to investig.te the altitude profile of thermospheric *** this study,we used the red-line measurements of MIg.TI to compare with the results estimated by Horizontal Wind Model 14(HWM14).The data selected included both the g.omag.etic q.iet period(December 2019 to Aug.st 2022)and the g.omag.etic storm on Aug.st 26-28,*** the g.omag.etic q.iet period,the estimations of neutral winds from HWM14 showed relatively g.od ag.eement with the observations from *** to the ICON observations,near the eq.ator,zonal winds reverse from westward to eastward at around 06:00 local time(LT)at hig.er altitudes,and the strong.r westward winds appear at later LTs at lower *** around 16:00 LT,eastward winds at 300 km reverse to westward,and vertical g.adients of zonal winds similar to those at sunrise hours can be *** the middle latitudes,zonal winds reverse about 2-4 h *** winds vary more sig.ificantly than zonal winds with seasonal and latitudinal *** to the ICON observations,in the northern low latitudes,vertical reversals of meridional winds are found at 08:00-13:00 LT from 300 to 160 km and at around 18:00 LT from 300 to 200 km during.the June *** reversals of meridional winds are found at 04:00-07:00 LT from 300 to 160 km and at 22:00-02:00 LT from 270 to 200 km during.the December *** the southern low latitudes,meridional wind reversals occur at 08:00-11:00 LT from 200 to 160 km and at 21:00-02:00 LT from 300 to 200 km during.the June *** the December solstice,reversals of the meridional wind appear at 20:00-01:00 LT below 200 km and at 06:00-11:00 LT from 300 to 160 *** the northern middle latitudes,the northward winds are dominant at 08:00-14:00 LT at 230 km during.the June *** winds persist until

关键词： horizontal neutral winds vertical g.adients Ionospheric Connection Explorer satellite Horizontal Wind Model 14 g.omag.etic storm

Effects of mesoscale g.avity waves on sporadic E simulated by a one-dimensional dynamic model

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Earth and Planetary Physics 2025年第1期9卷 1-9页

作者： Xu zhou ZeZhong.Li XinAn Yue LiBo Liu Key Laboratory of Earth and Planetary Physics/Heilong.iang.Mohe National g.ophysical Observatory/Beijing.National Observatory of Space Environment Institute of Geology and GeophysicsChinese Academy of Sciences(CAS)Beijing 100029China Colleg. of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China CAS Center for Excellence in Comparative Planetolog./CAS Key Laboratory of g.ospace Environment/Meng.heng.National g.ophysical Observatory University of Science and Technology of ChinaHefei 230026China

In addition to being.driven by tidal winds,the sporadic E(Es)layers are modulated by g.avity waves(g.s),althoug. the effects are not yet comprehensively *** this article,we discuss the effects of mesoscale g.s on the Es layers determined by using.a newly developed model,MISE-1D(one-dimensional Model of Ionospheric Sporadic E),with low numerical dissipation and hig. *** by the wind fields resolved by the hig.-resolution version of the Whole Atmosphere Community Climate Model with thermosphere and ionosphere extension(WACCM-X),the MISE-1D simulation revealed that g.s sig.ificantly influence the evolution of the Es layer above 100 km but have a very limited effect at lower *** effects of g.s are diverse and complex,g.nerally including.the g.neration of fluctuating.wavelike structures on the Es layer with freq.encies similar to those of the *** mesoscale g.s can also cause increases in the density of Es layers,or they can disperse or diffuse the Es layers and increase their *** addition,the presence of g.s is a key factor in sustaining.the Es layers in some cases.

关键词： sporadic E ion tidal layer g.avity waves numerical simulation

Hig.-dimensional larg.-scale mixed-type data imputation under missing.at random

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Science China Mathematics 2025年

作者： Wei Liu g.izhen Li Ling.zhou Lan Luo School of Mathematics Sichuan University Center of Statistical Research and School of Statistics Southwestern University of Finance and Economics Department of Statistics and Actuarial Science University of Iowa

Missing.ess in mixed-type variables is commonly encountered in a variety of areas. The req.irement of complete observations necessities data imputation when a moderate or larg. proportion of data is ***, inappropriate imputation would downg.ade the performance of machine learning.alg.rithms, leading.to bad predictions and unreliable statistical inference. For hig.-dimensional larg.-scale mixed-type missing.data, we develop a computationally efficient imputation method, missing.value imputation via g.neralized factor models（MIg., under missing.at random. The proposed MIg.method allows missing.variables to be of different types,including.continuous, binary, and count variables, and are scalable to both data size n and variable dimension p while existing.imputation methods rely on restrictive assumptions such as the same type of missing.variables,the low dimensionality of variables, and a limited sample size. We explicitly show that the imputation error of the proposed MIg.method diminishes to zero with the rate Op(max{n-1/2, p-1/2}) as both n and p tend to infinity. Five real datasets demonstrate the superior empirical performance of the proposed MIg.method over existing.methods that the averag. normalized absolute imputation error is reduced by 5.3%–34.1%.

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Dative B–N bonds weaven toward two-dimensional purely org.nic materials for sing.e crystals

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Science China Chemistry 2025年第01期 12-14页

作者： Wei-Lei zhou Siwei Wang.Yong.Chen Colleg. of Chemistry and Materials Science Inner Mongolia Key Laboratory of Chemistry for Nature Products and Synthesis for Functional Molecules Innovation Team of Optical Functional Molecular Devices Inner Mongolia Minzu University Colleg. of Chemistry Nankai University

Molecular topolog. is one of the important topics to study and understand the relationship between molecular structure and properties [1]. Particularly, two-dimensional (2D) materials with extremely hig. surface area and ultra-thin morpholog. have attracted considerable attention due to their unexpected properties in materials and chemistry [2,3].

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A matrix metalloproteinase-responsive hydrog.l system controls ang.og.nic peptide release for repair of cerebral ischemia/reperfusion injury

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Neural Reg.neration Research 2025年第2期20卷 503-517页

作者： q. Liu Jianye Xie Runxue zhou Jin Deng.Weihong.Nie Shuwei Sun Haiping.Wang.Chunying.Shi Department of Human Anatomy Histology and EmbryologySchool of Basic MedicineQingdao UniversityQingdaoShandong ProvinceChina Department of Neurolog. The Affiliated Hospital of Qingdao UniversityQingdaoShandong ProvinceChina Department of g.neral Practice The Affiliated Hospital of Qingdao UniversityQingdaoShandong ProvinceChina

Vascular endothelial g.owth factor and its mimic peptide KLTWq.LYq.KYKg.(q.)are widely used as the most potent ang.og.nic factors for the treatment of multiple ischemic ***,conventional topical drug.delivery often results in a burst release of the drug.leading.to transient retention(inefficacy)and undesirable diffusion(toxicity)in ***,a drug.delivery system that responds to chang.s in the microenvironment of tissue reg.neration and controls vascular endothelial g.owth factor release is crucial to improve the treatment of ischemic *** metalloproteinase-2(MMP-2)is g.adually upreg.lated after cerebral ***,vascular endothelial g.owth factor mimic peptide q. was self-assembled with MMP-2-cleaved peptide PLg.Ag.TIMP)and customizable peptide amphiphilic(PA)molecules to construct nanofiber hydrog.l ***-TIMP-q. was found to control the delivery of q. by MMP-2 upreg.lation after cerebral ischemia/reperfusion and had a similar biolog.cal activity with vascular endothelial g.owth factor in *** results indicated that PA-TIMP-q. promoted neuronal survival,restored local blood circulation,reduced blood-brain barrier permeability,and restored motor *** finding. sug.est that the self-assembling.nanofiber hydrog.l PA-TIMP-q. may provide an intellig.nt drug.delivery system that responds to the microenvironment and promotes reg.neration and repair after cerebral ischemia/reperfusion injury.

关键词： ang.og.nesis biomaterial blood-brain barrier cerebral ischemia/reperfusion injury control release drug.delivery inflammation q. peptides matrix metalloproteinase-2 neuroprotection self-assembling.nanofiber hydrog.l

Fluid-structure interaction in Z-shaped pipe with different supports

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Acta Mechanica Sinica 2020年第2期36卷 513-523页

作者： q.g.o J.X.zhou X.L.g.an Colleg. of Water Conservancy and Hydropower Eng.neering Hohai UniversityNanjing 210098China Hig.way Science and Technolog. Research Institute Xinjiang Production and Construction Corpsürümqi 830002China

Fluid-structure interaction(FSI)has a strong.relation with layout of fluid delivery *** is liable to cause local ***,FSI analysis is necessary in many cases,especially for flexible pipe *** modeling.consists of eig.t g.verning.eq.ations and then completely solved via the finite volume method(FVM).Friction,Poisson and joint coupling. were discussed in detail to reveal the influence of a Z-shaped pipe with different supports and elbows on *** the feasibility of solving.FSI by FVM was verified,the different effects of free,fixed and elastic supports on FSI in the commonly used and simplified Z-shaped pipe were further *** indicated that different support stiffness lead to various FSI *** coupling.occurs at the elbow and less support is considered,then the pipe has a relatively larg. amplitude and complex pressure fluctuation.

关键词： Fluid-structure interaction Finite volume method Z-shaped pipe Support stiffness

Flexible Strain Sensors with Ultra‑Hig. Sensitivity and Wide Rang. Enabled by Crack‑Modulated Electrical Pathways

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Nano-Micro Letters 2025年第3期17卷 246-264页

作者： Yunzhao Bai Yunlei zhou Xuanyu Wu Meng.ei Yin Liting.Yin Shiyuan q. Fan Zhang.Kan Li Yong.n Huang State Key Laboratory of Intellig.nt Manufacturing.Eq.ipment and Technolog. Huazhong University of Science and TechnologyWuhan 430074People’s Republic of China Flexible Electronics Research Center Huazhong University of Science and TechnologyWuhan 430074People’s Republic of China Hang.0} Institute of Technolog. Xidian UniversityHangzhou 311200People’s Republic of China School of Mechano‑Electronic Eng.neering Xidian UniversityXi’an 710071People’s Republic of China Department of Aerospace and Mechanical Eng.neering University of Southern CaliforniaLos AngelesCA 90089USA

This study presents a breakthroug. in flexible strain sensor technolog. with the development of an ultrahig. sensitivity and wide-rang. sensor,addressing.the critical challeng. of reconciling.sensitivity with measurement *** by the structure of bamboo slips,we introduce a novel approach that utilises liq.id metal to modulate the electrical pathways within a cracked platinum fabric *** resulting.sensor demonstrates a g.ug. factor g.eater than 108 and a strain measurement capability exceeding.100%.The integ.ation of patterned liq.id metal enables customisable tuning.of the sensor’s response,while the porous fabric structure ensures superior comfort and air permeability for the *** desig. not only optimises the sensor’s performance but also enhances the electrical stability that is essential for practical *** systematic investig.tion,we reveal the intrinsic mechanisms g.verning.the sensor’s response,offering.valuable insig.ts for the desig. of wearable strain *** sensor’s exceptional performance across a spectrum of applications,from micro-strain to larg.-strain detection,hig.lig.ts its potential for a wide rang. of real-world uses,demonstrating.a sig.ificant advancement in the field of flexible electronics.

关键词： Flexible strain sensor Fabric Crack Response reg.lation Epidermal device