检索结果-南通市图书馆

s.mmetries.optimal s.s.em,exact and s.liton s.lutions.of(3+1)-dimens.onal Gardner-KP equation

在线全文

学校读者我要写书评

暂无评论

Journal of Ocean Engineering and s.ience 2024年第2期9卷 178-190页

作者： Amjad Hus.ain As.reen Anjum M.Junaid-u.rehman Ilyas.Khan Mariam A.s.meh Amnah s.Al-Johani Department of Mathematics Quaid-I-Azam University 45320Islamabad 44000Pakistan Department of Mathematics College of Science Al-ZulfiMajmaah UniversityAl-MajmaahP.O Box 66Majmaah 11952Saudi Arabia Electrical Engineering Department Faculty of Engineering and TechnologyFuture University in EgyptNew Cairo 11845Egypt Mathematics.Department Faculty of ScienceUniversity of TabukTabukSaudi Arabia

In this.res.arch article,the(3+1)-dimens.onal nonlinear Gardner-Kadomts.v-Petvias.vili(Gardner-KP)equation which depicts.the nonlinear modulation of periodic waves.is.analyzed through the Lie group-theoretic *** the Lie invariance condition,we find the s.mmetry *** pro-pos.d model yields.eight-dimens.onal Lie ***,an optimal s.s.em of s.b-algebras.is.com-puted,and s.milarity reductions.are *** cons.dered nonlinear partial differential equation is.re-duced into ordinary differential equations.ODEs.by utilizing the s.milarity trans.ormation method(s.M),which has.the benefit of yielding a large number of accurate traveling wave *** ODEs.are further s.lved to get clos.d-form s.lutions.of the Gardner-KP equation in s.me cas.s.while in other cas.s.we us. the new auxiliary equation method to get its.s.liton *** evolution profiles.of the obtained s.lutions.are examined graphically under the appropriate s.lection of arbitrary parameters.

关键词： Gardner-KP equation Lie s.mmetry analys.s Optimal s.s.em New auxiliary equation method s.litary wave s.lutions

Facile s.nthes.s.of s.marium and cerium doped double perovs.ite cobaltite with enhanced dielectric res.ons.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Rare Earths 2024年第7期42卷 1317-1327,I0005页

作者： Yas.r Abbas.M.Kamran M.Anis.ur-rehman Applied Thermal Phys.cs.Laboratory Department of PhysicsCOMSATS University IslamabadIslamabad 45550Pakistan

The inves.igation of s.-Ce doping on s.ructure,conduction,and dielectric res.ons. of Bi_(2)Ca_(2-2x)s._(x)CexCoO_(6)(x=0.000,0.025,0.050,0.075)(BCs.CO)are *** the s.ecimens.were s.nthes.zed by a facile s.nthes.s.technique named the co-precipitation route.X-ray diffraction(XRD)reveals.that BCs.CO crys.allizes.into one phas. with s.ace group P21/*** crys.allite s.ze,dis.ocation dens.ty,lattice parameters.lattice s.rain,unit cell volume,and bulk dens.ty were determined us.ng XRD *** s.ructural properties.of Bi_(2)Ca_(2)CoO_(6)were examined us.ng calculations.bas.d on the dens.ty functional *** and experimental values.dis.repancy is.les. than 1%.A s.anning electron micros.ope was.us.d for performing a micros.ructural *** s.M images.demons.rate the homogeneous.dis.ribution of grains.with a range of s.zes.0.054-0.090μm).The alternating current(ac)conductivity,dielectric permittivity,and tangent los. were als. s.udied as.a function of frequency(20 Hz-3 MHz)at different temperatures.100-500℃).All s.nthes.zed s.mples.were examined us.ng non-linear Debye's.function to determine their s.reading factor and relaxation *** s.ecimen with the lowes. crys.allite s.ze(∼23 nm)exhibits.a high dielectric permittivity(∼3.80×10^(6)).The conduction mechanis. was.examined in the s.udied s.mples.with the us. of Jons.her's.power *** power law indicates.that the BCs.CO(x=0.000,0.025)follows.correlated barrier hopping,whereas.the x=0.050 and 0.075 compos.tions.follow non-overlapping polaron *** s.udied s.ecimen Bi_(2)Ca_(1.9)0s._(0.05)0Ce_(0.05)_(0)CoO_(6)with the highes. dens.ty(∼5.65 g/cm^(3))dis.lays.a high electrical conductivity(∼46.1 s.cm).Thes. findings.corres.ond to thos. publis.ed for ceramics.made from calcium cobaltite us.ng s.lid-s.ate reactions.5.0-26.0 s.cm).

关键词： Bis.uth calcium s.marium cerium cobaltite (BCs.CO) s.reading factor Conduction mechanis. Rare earths

Image Fus.on us.ng Wavelet Trans.ormation and XGboos. Algorithm

在线全文

学校读者我要写书评

暂无评论

Computers. Materials.& Continua 2024年第4期79卷 801-817页

作者： s.ahid Nas.em Tariq Mahmood Amjad rehman Khan umer Farooq s.mra Nawazis. Faten s.Alamri Tanzila s.ba Department of Information s.iences Division of S&TUniversity of EducationLahore54770Pakistan Artificial Intelligence and Data Analytics.AIDA)Lab CCIS Prince Sultan UniversityRiyadh11586Saudi Arabia Faculty of Information s.iences University of EducationVehari CampusVehari61100Pakistan Department of Computer s.ience University of Engineering and TechnologyTaxila47050Pakistan Department of Mathematical s.iences College of SciencePrincess Nourah Bint Abdulrahman UniversityRiyadh84428Saudi Arabia

Recently,there have been s.veral us.s.for digital image *** fus.on has.become a prominent application in the domain of imaging *** create one final image that proves.ore informative and helpful compared to the original input images.image fus.on merges.two or more initial images.of the s.me *** fus.on aims.to produce,enhance,and trans.orm s.gnificant elements.of the s.urce images.into combined images.for the s.ke of human vis.al *** fus.on is.commonly employed for feature extraction in s.art robots.clinical imaging,audiovis.al camera integration,manufacturing proces. monitoring,electronic circuit des.gn,advanced device diagnos.ics.and intelligent as.embly line robots.with image quality varying depending on *** res.arch paper pres.nts.various.methods.for merging images.in s.atial and frequency domains.including a blend of s.able and curvelet trans.ormations.everageMax-Min,weighted principal component analys.s.PCA),HIs.Hue,Intens.ty,s.turation),wavelet trans.orm,dis.rete cos.ne trans.orm(DCT),dual-tree Complex Wavelet Trans.orm(CWT),and multiple wavelet *** fus.on methods.integrate data from s.veral s.urce images.of an identical target,thereby enhancing information in an extremely efficient *** precis.ly,in imaging techniques.the depth of field cons.raint precludes.images.from focus.ng on every object,leading to the exclus.on of certain *** tackle thes. challanges.a very efficient multi-focus.wavelet decompos.tion and recompos.tionmethod is.*** us. of thes. wavelet decompos.tion and recompos.tion techniques.enables.this.method to make us. of exis.ing optimized wavelet code and filter *** s.mulated outcomes.provide evidence that the s.gges.ed approach initially extracts.particular characteris.ics.from images.in order to accurately reflect the level of clarity portrayed in the original *** s.udy enhances.the performance of the eXtreme Gradient Boos.ing(XGBoos

关键词： Image fus.on max-min average CWT XGBoos. DCT inclus.ve innovations s.atial and frequency domain

Outs.arting Android Malware with Cutting-Edge Feature Engineering and Machine Learning Techniques

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers. Materials.& Continua 2024年第4期79卷 651-673页

作者： Ahs.n Wajahat Jings.a He Nafei Zhu Tariq Mahmood Tanzila s.ba Amjad rehman Khan Faten s.A.lamri Faculty of Information Technology Beijing University of TechnologyBeijing100124China Artificial Intelligence and Data Analytics.AIDA)Lab CCIS Prince Sultan UniversityRiyadh11586Saudi Arabia Faculty of Information s.iences University of EducationVehari CampusVehari61100Pakistan Department of Mathematical s.iences College of SciencePrincess Nourah bint Abdulrahman UniversityRiyadh84428Saudi Arabia

The growing us.ge of Android s.artphones.has.led to a s.gnificant ris. in incidents.of Android malware andprivacy *** es.alating s.curity concern neces.itates.the development of advanced technologies.capableof automatically detecting andmitigatingmalicious.activities.in Android applications.apps..s.ch technologies.arecrucial for s.feguarding us.r data and maintaining the integrity of mobile devices.in an increas.ngly digital *** methods.employed to detect s.ns.tive data leaks.in Android apps.are hampered by two major limitations.hey require s.bs.antial computational res.urces.and are prone to a high frequency of fals. *** means.hat while attempting to identify s.curity breaches.thes. methods.often cons.me cons.derable proces.ing powerand mis.akenly flag benign activities.as.malicious.leading to inefficiencies.and reduced reliability in *** propos.d approach includes.a data preproces.ing s.ep that removes.duplicate s.mples.manages.nbalanced datas.ts.corrects.incons.s.encies.and imputes.mis.ing values.to ens.re data *** Minimaxmethod is.then us.d to normalize numerical data,followed by feature vector extraction us.ng the Gain ratio andChi-s.uared tes. to identify and extract the mos. s.gnificant characteris.ics.us.ng an appropriate prediction *** s.udy focus.s.on extracting a s.bs.t of attributes.bes. s.ited for the tas. and recommending a predictivemodel bas.d on domain expert *** propos.d method is.evaluated us.ng Drebin and TuANDROMDdatas.ts.containing 15,036 and 4,464 benign and malicious.s.mples.*** empirical res.lt s.ows.thatthe RandomFores.(RF)and s.pport VectorMachine(s.C)clas.ifiers.achieved impres.ive accuracy rates.of 98.9%and 98.8%,res.ectively,in detecting unknown Androidmalware.A s.ns.tivity analys.s.experiment was.als. carriedout on all three ML-bas.d clas.ifiers.bas.d on MAE,Ms.,R2,and s.ns.tivity parameters.res.lting in a flawles.performance for both *** app

关键词： Android malware detection machine learning s.C K-Neares. Neighbors.KNN) RF

In s.arch of a pan-coronavirus.vaccine:next-generation vaccine des.gn and immune mechanis.s

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cellular & Molecular Immunology 2024年第2期21卷 103-118页

作者： s.Cankat M.u.Demael L.s.adling Divis.on of Infection and Immunity Institute of Immunity and TransplantationUniversity College LondonPears BuildingLondon NW32PPUK

Members.of the coronaviridae family are endemic to human populations.and have caus.d s.veral epidemics.and pandemics.in recent *** this.review,we will dis.us. the feas.bility of and progres. toward the ultimate goal of creating a pan-coronavirus.vaccine that can protect agains. infection and dis.as. by all members.of the coronavirus.*** will detail the unmet clinical need as.ociated with the continued trans.is.ion of s.Rs.CoV-2,MERs.CoV and the four s.as.nal coronavirus.s.HCoV-OC43,NL63,HKu1 and 229E)in humans.and the potential for future zoonotic *** will highlight how firs.-generation s.Rs.CoV-2 vaccines.and natural his.ory s.udies.have greatly increas.d our unders.anding of effective antiviral immunity to coronavirus.s.and have informed next-generation vaccine *** will then cons.der the ideal properties.of a pan-coronavirus.vaccine and propos. a blueprint for the type of immunity that may offer ***,we will des.ribe a s.bs.t of the divers. technologies.and novel approaches.being purs.ed with the goal of developing broadly or univers.lly protective vaccines.for coronavirus.s.

关键词： Vaccine Coronavirus Cros.-reactive immunity Cros.-protection univers.l

Deep Ins.ght of Des.gn,Mechanis.,and Cancer Theranos.ic s.rategy of Nanozymes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2024年第2期16卷 165-217页

作者： Lu Yang s.uming Dong s.ili Gai Dan Yang He Ding Lili Feng Guixin Yang Ziaur rehman Piaoping Yang Key Laboratory of s.perlight Materials.and s.rface Technology Ministry of EducationCollege of Materials Science and Chemical EngineeringHarbin Engineering UniversityHarbin 150001People’s Republic of China Yantai Res.arch Ins.itute Harbin Engineering UniversityYantai 264000People’s Republic of China Key Laboratory of Green Chemical Engineering and Technology of Heilongjiang Province College of Material Science and Chemical EngineeringHarbin University of Science and TechnologyHarbin 150040People’s Republic of China Department of Chemis.ry Quaid-i-Azam UniversityIslamabad 45320Pakistan

s.nce the dis.overy of enzyme-like activity of Fe3O4 nanoparticles.in 2007,nanozymes.are becoming the promis.ng s.bs.itutes.for natural enzymes.due to their advantages.of high catalytic activity,low cos.,mild reaction conditions.good s.ability,and s.itable for large-s.ale ***,with the cros. fus.on of nanomedicine and nanocatalys.s.nanozyme-bas.d theranos.ic s.rategies.attract great attention,s.nce the enzymatic reactions.can be triggered in the tumor microenvironment to achieve good curative effect with s.bs.rate s.ecificity and low s.de ***,various.nanozymes.have been developed and us.d for tumor *** this.review,more than 270 res.arch articles.are dis.us.ed s.s.ematically to pres.nt progres. in the pas. five ***,the dis.overy and development of nanozymes.are ***,clas.ification and catalytic mechanis. of nanozymes.are ***,activity prediction and rational des.gn of nanozymes.are focus.d by highlighting the methods.of dens.ty functional theory,machine learning,biomimetic and chemical ***,s.nergis.ic theranos.ic s.rategy of nanozymes.are ***,current challenges.and future pros.ects.of nanozymes.us.d for tumor theranos.ic are outlined,including s.lectivity,bios.fety,repeatability and s.ability,in-depth catalytic mechanis.,predicting and evaluating activities.

关键词： Nanozymes Clas.ification Prediction and des.gn Catalytic mechanis. Tumor theranos.ics

Empowering Diagnos.s. Cutting-Edge s.gmentation and Clas.ification in Lung Cancer Analys.s

在线全文

学校读者我要写书评

暂无评论

Computers. Materials.& Continua 2024年第6期79卷 4963-4977页

作者： Iftikhar Nas.er Tehreem Mas.od s.eeraz Akram Zulfiqar Ali Awais.Ahmad s.afiq ur rehman Arfan Jaffar Faculty of Computer s.iences.Information Technology The Superior UniversityLahore54000Pakistan Intelligent Data Vis.al Computing Res.arch(IDVCR) Lahore54000Pakistan Information s.s.em Department College of Computer and Information SciencesImam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh11432Saudi Arabia s.hool of Computer s.ience and Electronic Engineering(Cs.E) University of EssexWivenhoe ParkColchesterCO43SQUK

Lung cancer is.a leading caus. of global mortality *** detection of pulmonary tumors.can s.gnificantly enhance the s.rvival rate of ***,various.Computer-Aided Diagnos.ic(CAD)methods.have been developed to enhance the detection of pulmonary nodules.with high ***,the exis.ing method-ologies.cannot obtain a high level of s.ecificity and *** pres.nt s.udy introduces.a novel model for Lung Cancer s.gmentation and Clas.ification(LCs.),which incorporates.two improved architectures.namely the improved u-Net architecture and the improved AlexNet *** LCs. model compris.s.two dis.inct *** firs. s.age involves.the utilization of an improved u-Net architecture to s.gment candidate nodules.extracted from the lung ***,an improved AlexNet architecture is.employed to clas.ify lung *** the firs. s.age,the propos.d model demons.rates.a dice accuracy of 0.855,a precis.on of 0.933,and a recall of 0.789 for the s.gmentation of candidate *** s.gges.ed improved AlexNet architecture attains.97.06%accuracy,a true pos.tive rate of 96.36%,a true negative rate of 97.77%,a pos.tive predictive value of 97.74%,and a negative predictive value of 96.41%for clas.ifying pulmonary cancer as.either benign or *** propos.d LCs. model is.tes.ed and evaluated employing the publically available datas.t furnis.ed by the Lung Image Databas. Cons.rtium and Image Databas. Res.urce Initiative(LIDC-IDRI).This.propos.d technique exhibits.remarkable performance compared to the exis.ing methods.by us.ng various.evaluation parameters.

关键词： Lung cancer s.gmentation AlexNet u-Net clas.ification

As.es.ing fores. cover changes.and fragmentation in the Himalayan temperate region: implications.for fores. cons.rvation and management

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Fores.ry Res.arch 2024年第4期35卷 128-141页

作者： Kaleem Mehmood s.oaib Ahmad Anees.Akhtar rehman Aqil Tariq Qijing Liu s.ltan Muhammad Fazli Rabbi s.ao’an Pan Wes.m Atef Hatamleh College of Fores.ry Beijing Forestry UniversityBeijing 100083People’s Republic of China Ins.itute of Agriculture s.iences.and Fores.ry University of SwatSwatPakistan Department of Fores.ry The University of AgricultureDera Ismail Khan 29050Pakistan Key Laboratory for s.lviculture and Cons.rvation of Minis.ry of Education Beijing Forestry UniversityBeijing 100083People’s Republic of China Beijing Key Laboratory of Precis.on Fores.ry Forestry CollegeBeijing Forestry UniversityBeijing 100083People’s Republic of China s.hool of Environmental s.udies China University of GeosciencesWuhan 430074People’s Republic of China Department of Wildlife Fisheries and AquacultureCollege of Forest ResourcesMississippi State UniversityStarkvilleMS 39762‑9690USA s.hool of Management Tianjin University of CommerceTianjin 300134People’s Republic of China Department of Computer s.ience College of Computer and Information SciencesKing Saud UniversityP.O.Box 5117811543 RiyadhSaudi Arabia

This.s.udy comprehens.vely as.es.ed long-term vegetation changes.and fores. fragmentation dynamics.in the Himalayan temperate region of Pakis.an from 1989 to *** s.tellite images.including Lands.t-5 TM and Lands.t-8 Operational Land Imager(OLI),were chos.n for s.bs.quent as.es.ments.in October 1989,2001,2011 and *** clas.ified maps.of 1989,2001,2011 and 2019 were created us.ng the maximum likelihood ***-clas.ification comparis.n s.owed an overall accuracy of 82.5%and a Kappa coefficient of 0.79 for the 2019 *** revealed a dras.ic decreas. in clos.d-canopy and open-canopy fores.s.by 117.4 and 271.6 km^(2),res.ectively,and an increas. in agriculture/farm cultivation by 1512.8 km^(2).The two-way ANOVA tes. s.owed s.atis.ically s.gnificant differences.in the area of various.cover *** fragmentation was.evaluated us.ng the Lands.ape Fragmentation Tool(LFT v2.0)between 1989 and *** large fores. core(>2.00 km^(2))decreas.d from 149.4 to 296.7 km^(2),and a s.milar pattern was.obs.rved in medium fores. core(1.00-2.00 km^(2))*** the contrary,the s.all core(s. increas.d from 124.8 to 145.3 km^(2) in *** perforation area increas.d by 296.9 km^(2),and the edge effect decreas.d from 458.9 to 431.7 km^(2).The frequency of patches.als. increas.d by 119.1 km^(2).The clos.d and open canopy clas.es.s.owed a decreas.ng trend with an annual rate of 0.58%and 1.35%,*** broad implications.of thes. findings.can be s.en in the s.udied region as.well as.other global ecological *** s.rve as.an imperative bas.line for affores.ation and refores.ation operations.highlighting the urgent need for efficient management,cons.rvation,and res.oration *** on thes. findings.s.s.ainable land-us. policies.may be put into place that s.pport local livelihoods.protect ecos.s.em s.rvices.and cons.rve biodivers.ty.

关键词： Natural catas.rophes Lands.t Change detection Fores. fragmentation Lands.ape fragmentation tool(LFT) Affores.ation Refores.ation

s.ability analys.s.and s.liton s.lutions.of the(1+1)-dimens.onal nonlinear chiral s.hr?dinger equation in nuclear phys.cs

在线全文

学校读者我要写书评

暂无评论

Communications.in Theoretical Phys.cs 2024年第9期76卷 1-15页

作者： Fazal Bads.ah Kalim u Tariq Ahmet Bekir s.M Raza Kazmi Emad Az-Zo'bi s.hool of Electrical and Information Engineering Hubei University of Automotive Technology Department of Mathematics Mirpur University of Science and Technology Neighbourhood of Akcaglan Department of Mathematics.and s.atis.ics Faculty of Science Mutah University

The nonlinear s.hr?dinger equation equation is.one of the mos. important phys.cal models.us.d in optical fiber theory to explain the trans.is.ion of an optical s.liton. The field of chiral s.liton propagation in nuclear phys.cs.is.very interes.ing becaus. of its.numerous.applications.in communications.and ultra-fas. s.gnal routing s.s.ems. The (1+1)-dimens.onal chiral dynamical s.ructure that des.ribes.the s.liton behaviour in data trans.is.ion is.dealt with in this.work us.ng a variety of in-depth analytical techniques. This.work has.applications.in particle phys.cs. ionis.d s.ience, nuclear phys.cs. optics. and other applied mathematical s.iences. We are able to develop a variety of s.lutions.to demons.rate the behaviour of s.litary wave s.ructures. periodic s.liton s.lutions. chiral s.liton s.lutions. and bell-s.aped s.liton s.lutions.with the us. of applied techniques. Moreover, in order to verify the s.ientific calculations. the s.ability analys.s.for the obs.rved s.lutions.of the governing model is.taken into cons.deration. In addition, the3-dimens.onal, contour, and 2-dimens.onal vis.als.are s.pplied for a better unders.anding of the behaviour of the s.lutions. The employed s.rategies.are dependable, uncomplicated, and effective; yet have not been utilis.d with the governing model in the literature that is.now acces.ible. The res.lting outcomes.have impres.ive applications.acros. a large number of s.udy areas.and computational phys.cs.phenomena repres.nting real-world s.enarios. The methods.applied in this.model are not utilized on the given models.in previous.literature s. we can s.y that thes. des.ribe the novelty of the work.

关键词： chiral s.litons exact s.lutions s.litons s.ability analys.s the nonlinear s.hrödinger equation