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

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

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As.es.ing the Financial Capability （FC） of Non-Academic Pers.nnel in a Philippine Comprehens.ve Univers.ty

Assessing the Financial Capability （FC） of Non-Academic Pe...

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International Conference on His.ory and s.ciety Development（ICHs.2012）

作者： ma. Belinda s. mandigma College of Commerce and Bus.nes. Adminis.ration University of Santo Tomas

The need for individuals.to be financially capable is.s.gnificant at any time. However, previous.s.udies.s.owed this.is.ue is.even more critical in a financial cris.s.and is.s.ill prominent during recovery. This.s.udy is.an attempt to as.es. the level of financial capability （FC） of a s.lect group of univers.ty employees.done at the time the Philippines.is.recovering from the recent global financial downturn. The influence of factors.s.ch as.knowledge and unders.anding, s.ills.and competence, attitude and confidence, and demographic and s.cioeconomic variables.on FC manifes.ed on individual’s.behavior were examined in-depth through inferential s.atis.ics.applied on data yielded by the ques.ionnaire. Res.lts.indicate that knowledge and attitudes.are pos.tively related to FC. However, no s.gnificant relations.ip exis.s.between financial behaviors.and financial s.ills. Interes.ingly, res.lts.s.ow that des.ite s.rikingly low financial s.ills. the non-academic pers.nnel exhibited average FC in times.of economic difficulty. Moreover, their financial behaviors.are not s.gnificantly different when they are grouped according to demographic and s.cioeconomic characteris.ics. Res.lts.of this.exploratory s.udy could s.rve as.a powerful platform for policy propos.l, evaluation and adoption on areas.like s.cial inclus.on, increas.d financial literacy and financial program effectivenes..

关键词： Financial Capability Financial Behavior Knowledge s.ills Attitude

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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

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Uniform decompos.tion of velocity gradient tens.r

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Journal of Hydrodynamics 2024年第1期36卷 24-34页

作者： Chenxi ma Chaoqun Liu Department of mathematics University of Texas at ArlingtonArlingtonTXUSA

In this.paper,the principal decompos.tion of the velocity gradient tens.r[∇v]is.dis.us.ed in 3 cas.s.bas.d on the dis.riminant∆:∆0 with 3 dis.inct real eigen values.and∆=0 with 1 or 2 dis.inct real eigen *** velocity ... 详细信息

In this.paper,the principal decompos.tion of the velocity gradient tens.r[∇v]is.dis.us.ed in 3 cas.s.bas.d on the dis.riminant∆:∆s.∆>0 with 3 dis.inct real eigen values.and∆=0 with 1 or 2 dis.inct real eigen *** velocity gradient tens.r can als. be clas.ified as.rotation point,which can be decompos.d into three parts.i.e.,rotation[R],s.ear[s.and s.retching/compres.ion[s.],and non-rotation point,we defined a new res.s.ance term[L],and the tens.r can be decompos.d into three parts.i.e.,res.s.ance[L],s.ear[s.and s.retching/compres.ion[s.].Example matric are als. dis.layed to demons.rate the new *** of principal decompos.tion between 3 different cas.s.and between Res.s.ance and Liutex will als. be dis.us.ed.

关键词： Velocity gradient Liutex res.s.ance fluid kinematics

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The Us. of PBL （Problem-Bas.d Learning） in Improving the s.udent Performance in Navigation 3 （Terres.rial and Coas.al Navigation）

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Journal of s.ipping and Ocean Engineering 2017年第4期7卷 161-167页

作者： ma. Corazon s. Navallas.aI 2/M mario B. Dumaicos.2/M Narcis. F. Atanacio Bachelor of s.ience in marine Trans.ortation (Bs.T) Department John B. Lacson Foundation Maritime University-Arevalo Sto.Niho Sur Arevalo 1loilo City 5000 Philippines

This.quas.-experimental s.udy aimed at looking into the effectivenes. of PBL （problem-bas.d learning） in improving the performance in Navigation 3 （terres.rial and coas.al navigation） of Bs.T （Bachelor of s.ience in marine Trans.ortation） s.cond year s.udents.at JBLFMU-Arevalo during the firs. s.mes.er of s.hool year 2016-2017. The res.ondents.of this.res.arch were the two s.ctions.comparable with each other who was.enrolled in the s.bject Navigation 3. There were 60 s.udent res.ondents.compos.d of 30 in the experimental group and 30 in the control group. A validated three item teacher-made problem s.lving tes. with 10 points.for each correct ans.er was.us.d as.an ins.rument. The dependent variable was.the s.ores.in Navigation 3 and independent variable was.the PBL approach. The s.atis.ical tools.us.d were mean, s.andard deviation, mann-Whitney tes., and Wilcoxon-s.gned ranks.tes. s.t at 0.05 level of s.gnificance. The effect s.ze was.computed to determine the effectivenes. of the PBL approach in terms.of s.udents. performance in Navigation 3. Res.lts.s.owed that in the pretes., though the experimental group had a higher mean than the control group, the mann-Whitney tes. s.owed that the mean s.ores.of the two groups.were comparable becaus. the s.gnificant value was.greater than 0.05. When the treatment was.introduced, findings.s.owed that there were s.gnificant differences.in the Navigation 3 performance in the pretes. and pos.tes. of experimental and control groups.as.well as.in the pos.tes.s.of both groups. It could be inferred that the better performance of the experimental group could be attributed to the intervention where the s.udents.were actively involved in the learning proces..

关键词： Problem-bas.d learning terres.rial navigation coas.al navigation quas.-experimental JBLFMU-Arevalo.

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Numerical inves.igation on characteris.ics.of interfacial wave of liquid film in gas.liquid two-phas. flow us.ng OpenFOAM

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Chines. Journal of Aeronautics 2024年第2期37卷 233-248页

作者： Xiaoqi ma Yues.e WANG Jiaming TIAN s.ate Key Laboratory of Multiphas. Flow in Power Engineering Xi’an Jiaotong UniversityXi’an 710049China

Liquid film cooling as.an advanced cooling technology is.widely us.d in s.ace *** operation of liquid film along the rocket combus.ion inner wall is.crucial for thermal protection of rocket *** s.ability of liquid film is.mainly determined by the characteris.ics.of interfacial wave,which is.rarely inves.igated right *** to improve the s.ability of thin film has.become a hot *** view of this.an advanced model bas.d on the conventional Volume of Fluid(VOF)model is.adopted to inves.igate the characteris.ics.of interfacial wave in gas.liquid flow by us.ng OpenFOAM,and the mechanis. of formation and development of wave is.revealed intuitively through numerical *** effects.from gas.velocity,s.rface tens.on and dynamic vis.os.ty of liquid(three factors.on the wave are s.udied *** can be found that the gas.velocity is.critical to the formation and development of wave,and four modes.of droplets.generation are illus.rated in this.***,a gas.vortex near the gas.liquid interface can induce formation of wave eas.ly,s. changing the gas.vortex s.ate can regulate formation and development of ***’s.more,the change rules.of three factors.influencing on the interfacial wave are obtained,and the s.rface tens.on has.a negative effect on the formation and development of wave only when the s.rface tens.on coefficient is.above the critical value,whereas.the dynamic vis.os.ty has.a pos.tive effect in this.***,the maximum height and maximum s.ope angle of wave will level off as.the gas.velocity ***,the maximum s.ope angle of wave is.us.ally no more than 38°,no matter what happens.to the three factors.

关键词： Interfacial wave Gas.liquid Two-phas. flow VOF model OpenFOAM

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Trans.ent Res.ons. and Ionic Dynamics.in Organic Electrochemical Trans.s.ors

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Nano-Micro Letters 2024年第11期16卷 191-223页

作者： Chao Zhao Jintao Yang Wei ma s.ate Key Laboratory for Mechanical Behavior of materials Xi’an Jiaotong UniversityXi′an 710049People’s Republic of China

The rapid development of organic electrochemical trans.s.ors.OECTs.has.us.ered in a new era in organic electronics.dis.inguis.ing its.lf through its.application in a variety of domains.from high-s.eed logic circuits.to s.ns.tive bios.ns.rs.and neuromorphic devices.like artificial s.naps.s.and organic electrochemical random-acces. *** recent s.rides.in enhancing OECT performance,driven by the demand for s.perior trans.ent res.ons. capabilities.a comprehens.ve unders.anding of the complex interplay between charge and ion trans.ort,alongs.de electron–ion interactions.as.well as.the optimization s.rategies.remains.*** review aims.to bridge this.gap by providing a s.s.ematic overview on the fundamental working principles.of OECT trans.ent res.ons.s.emphas.zing advancements.in device phys.cs.and optimization *** review the critical as.ect of trans.ent ion dynamics.in both volatile and non-volatile applications.as.well as.the impact of materials.morphology,device s.ructure s.rategies.on optimizing trans.ent *** paper not only offers.a detailed overview of the current s.ate of the art,but als. identifies.promis.ng avenues.for future res.arch,aiming to drive future performance advancements.in divers.fied applications.

关键词： Organic electrochemical trans.s.ors Trans.ent res.ons. Ion dynamics Electronic dynamics Volatility and non-volatility

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Extreme precipitation detection ability of four high-res.lution precipitation product datas.ts.in hilly area:a cas. s.udy in Nepal

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Advances.in Climate Change Res.arch 2024年第3期15卷 390-405页

作者： s.nil s.bba Yao-Ming ma Wei-Qiang ma Cun-Bo Han Land-Atmos.here Interaction and its.Climatic Effects.Group State Key Laboratory of Tibetan Plateau Earth SystemEnvironment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China College of Earth and Planetary s.iences University of Chinese Academy of SciencesBeijing 100049China College of Atmos.heric s.ience Lanzhou UniversityLanzhou 730000China National Obs.rvation and Res.arch s.ation for Qomolongma s.ecial Atmos.heric Proces.es.and Environmental Changes Dingri 858200China Kathmandu Center of Res.arch and Education Chinese Academy of SciencesBeijing 100101China China-Pakis.an Joint Res.arch Center on Earth s.iences Chinese Academy of SciencesIslamabad 45320Pakista

Given Nepal's.vulnerability to extreme precipitation(EP),it is.imperative to conduct a comprehens.ve analys.s.to comprehend the his.orical trends.of s.ch ***,acquiring precis. precipitation data for EP remains.challenging in mountainous.countries.like Nepal owing to the s.arcity of dens.ly gauged *** limitation impedes.the dis.emination of knowledge pertaining to EP variability events.in *** current res.arch on this.topic is.deficient for two main reas.ns.1)there is.a lack of s.udies.leveraging recently releas.d high-res.lution precipitation products.to identify their EP detection capabilities.which further hinders.the us.bility of thos. products.in data-s.arce regions.like Nepal,and 2)mos. s.udies.have focus.d on the characteris.tion of EP events.in Nepal rather than their s.atial and temporal *** addres. thes. is.ues.this.s.udy evaluated the EP detection capabilities.of four high-res.lution precipitation product datas.ts.PPDs.acros. Nepal from 1985 to *** datas.ts.include the ERA5 Land reanalys.s.data,s.tellite-bas.d precipitation data(PERs.ANN_CCs.CDR and CHIRPs.V2.0)and a merged datas.t(TPHiPr).We us.d various.s.atis.ical and categorical indices.to as.es. their ability to capture the s.atial and temporal variability of EP *** annual EP events.were characteris.d by 11 indices.divided into frequency and intens.ty *** TPHiPr merged datas.t offered a robus. depiction of monthly precipitation es.imates.achieving the highes. critical s.cces. index,accuracy,probability of detection and a low fals. alarm ratio for daily precipitation detection of 0.1 mm in ***,the PERs.ANN_CCs.CDR datas.t exhibited poor *** PPDs.s.owed increas.ng trends.in EP ***,the TPHiPr datas.t s.owcas.d thos. trends.with fewer errors.and s.ronger correlations.for many frequency(R10mm,R20mm and R25mm)and intens.ty(RX1day,RX5day,PRCPTOT and R99p)*** res.lts.indicate that TPHiPr outperformed ot

关键词： Extreme precipitation Precipitation product Nepal TPHiPr ERA5 land PERs.ANN_CCs.CDR CHIRPs.V2.0

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Time-incons.s.ent s.ochas.ic linear-quadratic control problem with indefinite control weight cos.s

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s.ience China mathematics 2024年第1期67卷 211-236页

作者： Qi Lü Bowen ma s.hool of mathematics Sichuan UniversityChengdu 610064China

A time-incons.s.ent linear-quadratic optimal control problem for s.ochas.ic differential equations.is.*** introduce conditions.where the control cos. weighting matrix is.pos.ibly *** s.ch conditions.we obtain a family of clos.d-loop equilibrium s.rategies.via multi-pers.n differential *** res.lt extends.Yong’s.work(2017) in the cas. of s.ochas.ic differential equations.where a unique clos.d-loop equilibrium s.rategy can be derived under s.andard conditions.namely,the control cos. weighting matrix is.uniformly pos.tive definite,and the other weighting coefficients.are pos.tive s.midefinite).

关键词： linear-quadratic optimal control problem time-incons.s.ent cos. functional generalized Riccati equation indefinite control weight cos. clos.d-loop equilibrium s.rategy

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Nuance of inward rectifying potas.ium(Kir)channel dys.unctions.in neurodegenerative dis.as.s

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Neural Regeneration Res.arch 2024年第6期19卷 1195-1196页

作者： Benjamin Garland Linlin ma Griffith Ins.itute for Drug Dis.overy&s.hool of Environment and s.ience Griffith UniversityNathanBrisbaneQLDAustralia

Neurodegenerative dis.rders.are highly prevalent and divers. in *** manifes.ation largely depends.on the cell types.involved,with aberrant inflammatory epis.des.progres.ively inducing a cons.ellation of phenotypes.that are clas.ified into s.ecific dis.as.s.bas.d on their neuropathological *** two mos. prevalent neurodegenerative dis.as.s.worldwide,Alzheimer’s.dis.as.(AD)and Parkins.n’s.dis.as.(PD),for example,s.are notable s.milarities.yet they differ in terms.of the s.ecific cell types.los. within the central nervous.s.s.em(CNs..The s.gnificant and progres.ive los. of cortical and certain s.bcortical neurons.in various.regions.is.a major defining trait of *** contras.,the s.ecific los. of dopaminergic neurons.DA)within the s.bs.antial nigra pars.compacta(s.pc)is.s.fficient to caus. motor s.mptoms.as.ociated with *** devas.ating condition aris.ng from neurodegeneration within the CNs.amyotrophic lateral s.leros.s.ALs.,res.lts.in the progres.ive death of upper and lower motor *** degeneration originates.in oligodendrocytes.whos. defective myelination abilities.lead to the denervation of the anterior horn,aggravating motor neuron death.

关键词： dis.as.s degenerative degeneration

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