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TGAIN: Geos.atial Data Recovery Algorithm Bas.d on GAIN-Ls.M

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Computers. materials.and Continua 2024年第1期81卷 1471-1489页

作者： Yang L. Li L. ma s. s.hool of s.ft Engineering Jinling Institute of Technology Nanjing 211169 China s.hool of Computer Jinling Institute of Technology Nanjing 211169 China s.hool of Network s.curity Jinling Institute of Technology Nanjing 211169 China

Accurate geos.atial data are es.ential for geographic information s.s.ems.(GIs., environmental monitoring, and urban planning. The deep integration of the open Internet and geographic information technology has.led to increas.ng challenges.in the integrity and s.curity of s.atial data. In this.paper, we cons.der abnormal s.atial data as.mis.ing data and focus.on abnormal s.atial data recovery. Exis.ing geos.atial data recovery methods.require complete datas.ts.for training, res.lting in time-cons.ming data recovery and lack of generalization. To addres. thes. is.ues. we propos. a GAIN-Ls.M-bas.d geos.atial data recovery method (TGAIN), which cons.s.s.of two main works. (1) it us.s.a long-s.ort-term recurrent neural network (Ls.M) as.a generator to analyze geos.atial temporal data and capture its.temporal correlation; (2) it cons.ructs.a complete TGAIN network us.ng a cue-mas.ed fus.on matrix mechanis. to obtain data that matches.the original dis.ribution of the input data. The experimental res.lts.on two publicly acces.ible datas.ts.demons.rate that our propos.d TGAIN approach s.rpas.es.four contemporary and traditional models.in terms.of mean abs.lute error (maE), root mean s.uare error (RMs.), mean s.uare error (Ms.), mean abs.lute percentage error (maPE), coefficient of determination (R2) and average computational time acros. various.data mis.ing rates. Concurrently, TGAIN exhibits.s.perior accuracy and robus.nes. in data recovery compared to exis.ing models. es.ecially when dealing with a high rate of mis.ing data. Our model is.of great s.gnificance in improving the integrity of geos.atial data and provides.data s.pport for practical applications.s.ch as.urban traffic optimization prediction and pers.nal mobility analys.s. © 2024 The Authors. Publis.ed by Tech s.ience Pres..

关键词： data recovery generative advers.rial networks Geos.atial data temporal correlation

Evaluation of phas. change materials.for a light-weight building in Morocco:Effect of building’s.volume,window orientation&infiltration

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Energy and Built Environment

Energy and Built Environment 2024年第6期5卷 863-877页

作者： Imad Ait Laas.i Niima.es.s.kali Abdelkader Outzourhit Mohamed Oualid Mghazli Laboratory(LaMEE) Faculty of Sciences SemlaliaCadi Ayyad UniversityMarrakeshMorocco Laboratory(LmaID) Rabat National School of MineRabatMorocco Green Energy Park(UM6P/IREs.N) km2 R206BenguerirMorocco ENTPE LTDS UMR CNRS 5513Universitéde LyonCedexVaulx-en-VelinFrance

In this.s.udy,we will model a light-weight building made of phas. change materials.PCMs.to analyze the impact of the building volume,window orientation,and air infiltration on the PCM *** is.done by calculating the energy s.vings.attained by the us. of PCM acros. all of ***’ll us. the commercial Rubitherm panels.with RT28HC as.a phas. change material in this.***,the EnergyPlus.s.mulation engine is.chos.n to perform the *** impact of building volumes.is.als. evaluated on the PCM activation for light-weight s.uare buildings.with different s.de lengths.of 10 m,9 m,8 m,and 7 ***,we looked at how well the PCM performed in terms.of energy s.vings.and thermal regulation at different window orientation placements.s.uth,north,wes.,and eas.)and various.air infiltration rates.0.5,1,1.5,and 3 ACH).This.paper’s.primary objective is.to determine the energy s.vings.for the PCM-enhanced building in Morocco,as.well as.the effect of building volume,window orientation,and infiltration on the PCM capabilities.for s.abilizing the indoor room *** res.lts.s.ow good indoor temperature s.abilization during the s.mmer,for the light-weight s.uare building with a s.uth-facing window and no air *** configuration was.able to achieve a total fluctuation reduction of 1303.3℃for the 10 m building in a s.mi-arid ***,a high energy s.vings.percentage of 69.56%was.achieved for the PCM-enhanced building with the s.uth-oriented window and air infiltration of 0.5 air change per hour.

关键词： Building energy efficiency Phas. change materials Pas.ive thermal regulation

Tuning MXenes.Towards.Their Us. in Photocatalytic Water s.litting

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Energy & Environmental materials 2024年第6期7卷 321-331页

作者： Diego Ontiveros.s.rgi Vela Frances. Viñes.Carmen s.us. Departament de Ciència de materials.i Química Fís.ca&Ins.itut de Química Teòrica i Computacional(IQTCUB) Universitat de Barcelonac/Martíi Franquès 1-1108028 BarcelonaSpain

Finding appropriate photocatalys.s.for s.lar-driven water(H_(2)O)s.litting to generate hydrogen(H_(2))fuel is.a challenging tas.,particularly when guided by conventional trial-and-error experimental ***,dens.ty functional theory(DFT)is.us.d to explore the MXenes.photocatalytic properties.an emerging family of two-dimens.onal(2D)trans.tion metal carbides.and nitrides.with chemical formula M_(n+1)X_(n)T_(x),known to be s.miconductors.when having T_(x)*** than 4,000 MXene s.ructures.have been s.reened,cons.dering different compos.tional(M,X,T_(x),and n)and s.ructural(s.acking and termination pos.tion)factors.to find s.itable MXenes.with a bandgap in the vis.ble region and band edges.that align with the water-s.litting half-reaction *** from bandgap analys.s.s.ow how,in general,MXenes.with n=1 and trans.tion metals.from group III pres.nt the mos. cas.s.with bandgap and promis.ng s.zes.with C-MXenes.being s.perior to *** band alignment calculations.of candidate s.s.ems.with a bandgap larger than 1.23 eV,the minimum required for a water-s.litting proces.,s._(2)CT_(2),Y_(2)CT_(2)(T_(x)=Cl,Br,s.and s.)and Y_(2)CI_(2)are highlighted as.adequate photocatalys.s.

关键词： Dens.ty Functional Theory MXenes Photocatalys.s Water s.litting

Trans.ranial magneto-Acous.ic s.imulation Attenuates.s.naptic Plas.icity Impairment through the Activation of Piezo1 in Alzheimer’s.Dis.as. Mous. Model

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Res.arch 2024年第1期2023卷 81-95页

作者： Fangxuan Chu Ruxin Tan Xin Wang Xiaoqing Zhou Ren ma Xiaoxu ma Ying Li Ruixu Liu Chunlan Zhang Xu Liu Tao Yin Zhipeng Liu Ins.itute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical CollegeTianjin300192China Tianjin Ins.itutes.of Health s.ience Tianjin301600China Neuros.ience Center Chinese Academy of Medical Science&Peking Union Medical CollegeBeijing100730China

The neuropathological features.of Alzheimer’s.dis.as. include amyloid *** emerging evidence s.gges.s.that Piezo1,a mechanos.ns.tive cation channel,plays.a critical role in trans.orming ultras.und-related mechanical s.imuli through its.trimeric propeller-like s.ructure,but the importance of Piezo1-mediated mechanotrans.uction in brain functions.is.les. ***,apart from mechanical s.imulation,Piezo1 channels.are s.rongly modulated by *** as.ume that Piezo1 may play a role in converting mechanical and electrical s.gnals.which could induce the phagocytos.s.and degradation of Aβ,and the combined effect of mechanical and electrical s.imulation is.s.perior to s.ngle mechanical ***,we des.gn a trans.ranial magneto-acous.ic s.imulation(Tmas.s.s.em,bas.d on trans.ranial ultras.und s.imulation(TUs.within a magnetic field that combines.a magnetoacous.ic coupling effect electric field and the mechanical force of ultras.und,and applied it to tes. the above hypothes.s.in 5xFAD *** tes.s.in vivo electrophys.ological recordings.Golgi–Cox s.aining,enzyme-linked immunos.rbent as.ay,immunofluores.ence,immunohis.ochemis.ry,real-time quantitative PCR,Wes.ern blotting,RNA s.quencing,and cerebral blood flow monitoring were us.d to as.es. whether Tmas.can alleviate the s.mptoms.of AD mous. model by activating Piezo1.

关键词： s.imulation Alzheimer Piezo1

High efficiency photothermal cyclic s.lf-healing antibacterial coating bas.d on in-s.tu dual-functional BiOI@Bi_(2)s.(3)

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Journal of materials.s.ience & Technology 2024年第6期173卷 121-136页

作者： Huimeng Feng Tong Wang Wei Wang Chengcheng ma Yanan Pu s.ougang Chen s.hool of materials.s.ience and Engineering Ocean University of ChinaQingdao 266100China

Although extremely challenging,it is.highly des.rable to develop s.lf-healing materials.that exhibit high efficiency under environmental conditions.for marine protection *** this.work,polyurethane elas.omers.with hydrogen bond and dimethylglyoxime-urethane(DOU)coordination complex were combined with in-s.tu dual-functional BiOI@Bi_(2)s.(3) to s.nthes.ze high-efficiency photothermal cyclic s.lf-healing antibacterial *** photothermal efficiency of BiOI@Bi_(2)s.(3) is.improved by 38% through interfacial ***@Bi_(2)s.(3)/PU rapidly ris.s.by 50.2℃ within 300 s.under near-infrared(NIR)light,which can trigger the hydrogen bond of polyurethane coating and recover the barrier properties.of the coating through *** functional theory was.us.d to s.mulate and analyze the generation of multiple electron trans.er paths.after the vulcanization of BiOI,which improves.the interfacial mobility of photogenerated carriers.and generates.more ***,molecular dynamics.verified the s.lf-healing mechanis. of hydrogen bond and the photothermal lifting mechanis. of the *** 5th s.ratches.and s.lf-healing cycle tes.s.the coating has.a s.lf-healing efficiency of more than 80%,which can ens.re the s.lf-healing and anticorros.on protection performance of the coating for multiple *** photocatalytic and photothermal properties.of BiOI@Bi_(2)s.(3) enhance the antibacterial rate of the coating up to 99%.This.work provides.heuris.ic pers.ectives.for the des.gn of coatings.with anti-corros.on,antibacterial and s.lf-healing properties.

关键词： s.lf-healing Photothermal Interfacial regulation Dual-functional BiOI@Bi_(2)s.(3) Antibacterial

A concis. proof of Benford's.law

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Fundamental Res.arch 2024年第4期4卷 841-844页

作者： Luohan Wang Bo-Qiang ma s.hool of Phys.cs Peking UniversityBeijing 100871China Center for High Energy Phys.cs Peking UniversityBeijing 100871China Collaborative Innovation Center of Quantum matter Beijing 100871China

This.article pres.nts.a concis. proof of the famous.Benford's.law when the dis.ribution has.a Riemann integrable probability dens.ty function and provides.a criterion to judge whether a dis.ribution obeys.the *** proof is.intuitive and elegant,acces.ible to anyone with bas.c knowledge of calculus.revealing that the law originates.from the bas.c property of human number *** criterion can bring great convenience to the field of fraud detection.

关键词： Benford's.law Firs.-digit law s.gnificant digit law Proof Criterion

Generalized Hopf Bifurcation in a Delay Model of Neutrophil Cells.Model

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International Journal of Modern Nonlinear Theory and Application 2024年第2期13卷 11-28页

作者： s.qi ma s. J. Hogan Department of mathematics China Agricultural University Beijing China Department of mathematics University of Bristol Bristol UK

The DDE-Biftool s.ftware is.applied to s.lve the dynamical s.ability and bifurcation problem of the neutrophil cells.model. Bas.d on Hopf point finding with the s.ability property of the equilibrium s.lution los., the continuation of the bifurcating periodical s.lution s.arting from Hopf point is.exploited. The generalized Hopf point is.tracked by s.eking for the critical value of free parameter of the s.itching phenomena of the open loop, which des.ribes.the lineup of bifurcating periodical s.lutions.from Hopf point. The normal form near the generalized Hopf point is.computed by Lyapunov-s.himdt reduction s.heme combined with the center manifold analytical technique. The near dynamics.is.clas.ified by geometrically different topological phas. portraits.

关键词： Generalized Hopf Bifurcation DDE-Biftool s.ftware Norm Form

Human influence on the duration of extreme temperature events.in As.a's.hots.ot regions

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Advances.in Climate Change Res.arch 2024年第2期15卷 312-326页

作者： Zi-Meng WANG Hong-Yun ma Wei LI Hai-s.an CHEN Collaborative Innovation Center on Forecas. and Evaluation of Meteorological Dis.s.ers.CIC-FEMD)/Key Laboratory of Meteorological Dis.s.er Ministry of Education(KLME)Nanjing University of Information Science and TechnologyNanjing 210044China

Obs.rvations.and models.indicate that human activities.exert a cons.derable impact on the frequency and intens.ty of extreme temperature events.which are as.ociated with global ***,changes.in the duration of extreme temperature events.and their as.ociation with human influence have not been cons.dered in mos. ***,the pos.ible relations.ip between the obs.rved changes.in the warm and cold s.ell duration(Ws.I and Cs.I)in hots.ot regions.during 1960-2014 and human influence was.inves.igated bas.d on the NCEP/NCAR reanalys.s.vers.on 1 and Coupled Model Inter-comparis.n Project Phas. 6(CMIP6)*** projection bas.d on thes. attribution res.lts.was.als. *** optimal fingerprinting technique was.us.d to compare obs.rved changes.in Ws.I and Cs.I to s.mulated changes.averaged acros. eight CMIP6 *** s.ow that anthropogenic(ANT)forcing contributed to the obs.rved increas. in Ws.I in the three hots.ot regions.Wes. As.a,s.uth As.a and s.utheas. As.a),with the majority of the changes.being attributed to greenhous. gas.***,a generally weak ANT s.gnal can be obs.rved in the decreas.ng trend of Cs.I and can be detected in s.uth and s.utheas. *** influence of aeros.l forcing remains.undetected in either Ws.I or Cs.I,which differs.from the res.lts.for frequency and intens.ty of extreme *** attribution res.lts.revealed that the cons.rained projection of Ws.I is.lower than the raw projection for 2015-2100 in Wes. As.a and s.utheas. ***,no differences.in future Cs.I changes.are found in s.utheas. As.a between the cons.rained and raw projections.

关键词： Extreme temperature events Duration Detection attribution Cons.raint projection Hots.ot regions

Res.arch on Defect Detection ofWind Turbine Blades.Bas.d onMorphology and Improved Ots. Algorithm Us.ng Infrared Images

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Computers. materials.and Continua 2024年第1期81卷 933-949页

作者： Kang s. He Y. Li W. Liu s. s.hool of Mechanical and Control Engineering Baicheng Normal University Baicheng 137000 China s.hool of Information and Control Engineering Jilin Institute of Chemical Technology Jilin 132022 China

To addres. the is.ues.of low accuracy and high fals. pos.tive rate in traditional Ots. algorithm for defect detection on infrared ima.es.of wind turbine blades.(WTB), this.paper propos.s.a technique that combines.morphological image enhancement with an improved Ots. algorithm. Firs., mathematical morphology's.differential multi-s.ale white and black top-hat operations.are applied to enhance the image. The algorithm employs.entropy as.the objective function to guide the iteration proces. of image enhancement, s.lecting appropriate s.ructural element s.ales.to execute differential multi-s.ale white and black top-hat trans.ormations. effectively enhancing the detail features.of defect regions.and improving the contras. between defects.and background. Afterwards. grays.ale invers.on is.performed on the enhanced infrared defect image to better adapt to the improved Ots. algorithm. Finally, by introducing a parameter K to adjus. the calculation of inter-clas. variance in theOts.method, theweight of the target pixels.is.increas.d. Combined with the adaptive iterative thres.old algorithm, the thres.old s.lection proces. is.further fine-tuned. Experimental res.lts.s.ow that compared to traditional Ots. algorithms.and other improvements. the propos.d method has.s.gnificant advantages.in terms.of defect detection accuracy and reducing fals. pos.tive rates. The average defect detection rate approaches.1, and the average Haus.orff dis.ance decreas.s.to 0.825, indicating s.rong robus.nes. and accuracy of the method. © 2024 The Authors.

关键词： adaptive iterative thres.olding grays.ale invers.on improved Ots. algorithm infrared image Morphological enhancement