检索结果-南通市图书馆

On Multi-Gr.nulation r.ugh Sets with Its Applications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer., Mater.als & Continua 2024年第4期79卷 1025-1038页

作者： r.dwan Abu-Gdair. r.Mar.ay M.Badr Depar.ment of Mathematics Faculty of ScienceZarqa UniversityZarqa13132Jordan Depar.ment of Mathematics Faculty of ScienceKafrelsheikh UniversityKafrelsheikh33516Egypt Depar.ment of Mathematics Faculty of ScienceNew Valley UniversityEl Kharga72713Egypt

r.cently,much inter.st has been given tomulti-gr.nulation r.ugh sets (MGr.), and var.ous types ofMGr.modelshave been developed fr.m differ.nt viewpoints. In this paper. we intr.duce two techniques for.the classificationof MGr.. Fir.tly, we gener.te multi-topologies fr.m multi-r.lations defined in the univer.e. Hence, a novelappr.ximation space is established by lever.ging the under.ying topological str.ctur.. The char.cter.stics of thenewly pr.posed appr.ximation space ar. *** intr.duce an algor.thmfor.the r.duction ***, a new appr.ach for.the classification ofMGr. based on neighbor.ood concepts is intr.duced. Finally, ar.al-life application fr.m medical r.cor.s is intr.duced via our.appr.ach to the classification of MGr..

关键词： Multi-gr.nulation r.ugh sets data classifications infor.ation systems inter.or.oper.tor. closur. oper.tor. appr.ximation str.ctur.s

Image Splicing For.er. Detection Using Featur.-Based of Sonine Functions and Deep Featur.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

Computer., Mater.als & Continua 2024年第1期78卷 795-810页

作者： Ala’a r.Al-Shamasneh r.bha W.Ibr.him Depar.ment of Computer.Science College of Computer&Information SciencesPrince Sultan UniversityRiyadh11586Saudi Arabia Depar.ment of Computer.Science and Mathematics Lebanese American UniversityBeirut11022801Lebanon Depar.ment of Mathematics Mathematics Research CenterNear East UniversityNicosia99138Turkey Infor.ation and Communication Technology r.sear.h Gr.up Scientific Research CenterAlayen UniversityDhi Qar64001Iraq

The gr.wing pr.valence of fake images on the Inter.et and social media makes image integr.ty ver.fication a cr.cial r.sear.h *** of the most popular.methods for.manipulating digital images is image splicing,which involves copying a specific ar.a fr.m one image and pasting it into *** wer. made to mitigate the effects of image splicing,which continues to be a significant r.sear.h *** study pr.poses a new splicing detectionmodel,combining Sonine functions-der.ved convex-based featur.s and deep *** stages make up the pr.posed *** fir.t step entails featur. extr.ction,then classification using the“suppor. vector.machine”(SVM)to differ.ntiate authentic and spliced *** pr.posed Sonine functions-based featur. extr.ction model r.veals the spliced textur. details by extr.cting some clues about the pr.bability of image *** pr.posed model achieved an accur.cy of 98.93% when tested with the CASIA V2.0 dataset“Chinese Academy of Sciences,Institute of Automation”which is a publicly available dataset for.for.er. *** exper.mental r.sults show that,for.image splicing for.er. detection,the pr.posed Sonine functions-der.ved convex-based featur.s and deep featur.s outper.or. state-of-the-ar. techniques in ter.s of accur.cy,pr.cision,and ***,the obtained detection accur.cy attests to the benefit of using the Sonine functions alongside deep featur. *** the r.gions or.locations wher. image tamper.ng has taken place is limited by the *** r.sear.h will need to look into advanced image analysis techniques that can offer.a higher.degr.e of accur.cy in identifying and localizing tamper.ng r.gions.

关键词： Image for.er. image splicing deep lear.ing Sonine functions

Mantle avalanches in a Venus-like stagnant lid planet

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ear.h and Planetar. Physics 2024年第5期8卷 686-702页

作者： Madeleine C.Ker. Dave r.Stegman Institute of Geophysics and Planetar. Physics Scripps Institution of Oceanography University of California

Stagnant lid planets ar. char.cter.zed by a globe-encir.ling, conducting lid that is thick and str.ng, which leads to r.duced global sur.ace heat flows. Consequently, the mantles of such planets can have war.er.inter.or. than Ear.h, and inter.stingly, a pyr.litic mantle composition under.war.er.conditions is pr.dicted to have a distinctly differ.nt mantle tr.nsition zone compar.d to the pr.sent-day Ear.h(Hir.se, 2002; Stixr.de and Lithgow-Ber.elloni, 2011; Ichikawa et al., 2014; Dannber. et al, 2022). Instead of olivine pr.mar.ly tr.nsfor.ing into its higher.pr.ssur. polymor.hs such as wadsleyite and then r.ngwoodite, at pr.ssur.s cor.esponding to410 km and 520 km depth in Ear.h, r.spectively, it instead tr.nsfor.s into a miner.l assemblage of wadsleyite, major.te, and fer.oper.clase(WMF), and then to major.te + fer.oper.clase(MF), befor. finally tr.nsfor.ing into br.dgmanite at pr.ssur.s cor.esponding to 660 km depth in Ear.h(Stixr.de and Lithgow-Ber.elloni, 2011; Ichikawa et al., 2014). Convective motions in stagnant lid planets ar. dominated by small-scale instabilities(cold dr.ps) for.ing within the mobile r.eological sublayer.under.the r.gid lid. Using ASPECT and a ther.odynamic model of a pyr.litic mantle composition gener.ted by HeFESTo, we show that under.cer.ain conditions, the small dr.ps can pond atop the WMF-MF miner.l phase tr.nsition. The bar.ier.to convective flow ar.ses fr.m the WMF miner.l phase assemblage having an effective negative ther.al expansivity(Stixr.de and Lithgow-Ber.elloni, 2022). Although lar.e-scale downwellings that typically occur.within mobile lid planets ar. able to pass thr.ugh the WMF zone without difficulty(Dannber. et al., 2022; Li r. et al.,2024), the smaller.and less negatively buoyant natur. of downwelling dr.ps in stagnant lid planets ar. mor. susceptible to these effects,which leads to an ephemer.l layer.ng of the mantle. Our.numer.cal models show that in stagnant lid planets with mantle potential temper.tur.s that exceed

关键词： Venus mantle avalanches numer.cal modelling phase tr.nsitions

Fast pr.diction of r.in er.sion in wind tur.ine blades using a data-based computational tool

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Jour.al of Hydr.dynamics 2024年第3期36卷 504-518页

作者： Juan M.Gimenez Ser.io r.Idelsohn Eugenio Oñate Centr. Inter.acional de Mètodes Numèr.cs en Enginyer.a(CIMNE) Edifici C1 Campus Nord UPC C/Gran CapitàS/NBarcelonaSpain

Wind tur.ines(WTs)face a high r.sk of failur. due to envir.nmental factor. like er.sion,par.icular.y in high-pr.cipitation ar.as and offshor. *** this paper.we intr.duce a novel computational tool for.the fast pr.diction of r.in er.sion damage on WT blades that is useful in oper.tion and maintenance decision making *** appr.ach is as follows:Pseudo-Dir.ct Numer.cal Simulation(P-DNS)simulations of the dr.plet-laden flow ar.und the blade section pr.file ar. employed to build a high-fidelity data set of impact statistics for.potential oper.ting *** this database as tr.ining data,a machine lear.ing-based sur.ogate model pr.vides the featur. of the impact patter. over.the 2-D section for.given wind and r.in *** this infor.ation,a fatigue-based model estimates the r.maining lifetime and er.sion damage for.both homogeneous and coating-substr.te blade *** pr.diction is done by quantifying the accumulated dr.plet impact ener.y and evaluating oper.tive conditions over.time per.ods for.which the weather.at the installation site is *** this wor.,we descr.be the modules that compose the pr.diction method,namely the database cr.ation,the tr.ining of the sur.ogate model and their.coupling to build the pr.diction ***,the method is applied to pr.dict the r.maining lifetime and er.sion damage to the blade sections of a r.fer.nce *** evaluate the r.liability of the tool,sever.l site locations(offshor.,coastal,and inland),the coating mater.al and the coating thickness of the blade ar. *** few minutes we ar. able to estimate er.sion after.many year. of *** r.sults ar. in good agr.ement with field obser.ations,showing the pr.mise of the new r.in er.sion pr.diction appr.ach.

关键词： Wind tur.ine blades leading edge er.sion fatigue Pseudo-Dir.ct Numer.cal Simulation(P-DNS) machine lear.ing eblader

Doubled haploid technology and synthetic apomixis:r.cent advances and applications in futur. cr.p br.eding

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Molecular.Plant 2024年第7期17卷 1005-1018页

作者： Yanzhi Qu Alisdair.r.Fer.ie Jie Liu Jianbing Yan National Key Labor.tor. of Cr.p Genetic Impr.vement Huazhong Agricultural UniversityWuhan 430070China Hubei Hongshan Labor.tor. Wuhan 430070China Depar.ment of Molecular.Physiology Max-Planck-Institute of Molecular Plant Physiology14476 Potsdam-GolmGermany Center.of Plant Systems Biology and Biotechnology 4000 PlovdivBulgaria azhouwan National Labor.tor. Sanya 572024China

Doubled haploid(DH)technology and synthetic apomixis appr.aches can consider.bly shor.en br.eding cycles and enhance br.eding *** with tr.ditional br.eding methods,DH technology offer. the advantage of r.pidly gener.ting inbr.d lines,while synthetic apomixis can effectively fix hybr.d *** this r.view,we focus on(i)r.cent advances in identifying and char.cter.zing genes r.sponsible for.haploid induction(Hl),(ii)the molecular.mechanisms of Hl,(ili)spontaneous haploid genome doubling,and(iv)cr.p synthetic *** also discuss the challenges and potential solutions for.futur. cr.p br.eding pr.gr.ms utilizing DH technology and synthetic ***,we pr.vide our.per.pectives about how to integr.te DH and synthetic apomixis for.pr.cision br.eding and de novo domestication.

关键词： maize doubled haploid technology haploid induction synthetic apomixis pr.cision br.eding

Limited impacts of occasional tillage on dr. aggr.gate size distr.bution and soil car.on and nitr.gen fr.ctions in semi-ar.d dr.lands

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Inter.ational Soil and Water.Conser.ation r.sear.h 2024年第1期12卷 96-106页

作者： Wooiklee S.Paye Vesh r.Thapa r.jan Ghimir. New Mexico State Univer.ity Agricultural Science CenterClovisNM88101USA New Mexico State Univer.ity Department of Plant and Environmental SciencesLas CrucesNM88003USA

Tillage management that minimizes the fr.quency and intensity of soil distur.ance can incr.ase soil car.on(C)and nitr.gen(N)sequestr.tion and impr.ve the r.silience of dr.land cr.pping systems,yet the impact of occasional distur.ance on soil aggr.gate for.ation and the soil or.anic car.on(SOC)stor.ge within aggr.gates has not been studied *** evaluated the effect of four.tillage management pr.ctices on soil dr. aggr.gate size distr.bution,aggr.gate-pr.tected C and N,miner.l-associated or.anic matter.car.on(MAOM-C),par.iculate or.anic matter.car.on(POM-C),and cor.(Zea mays L.)and sor.hum(Sor.hum bicolor.L.)Moench)yields in a semi-ar.d dr.land cr.pping *** included conventional tillage(CT),str.p-tillage(ST),no-tillage(NT),and occasional tillage(OT)management in a cor.-sor.hum *** macr.-aggr.gates wer. 51-54%gr.ater.under.ST,NT,and OT,while small and micr.-aggr.gates wer. gr.ater.in *** tillage r.duced soil aggr.gate-associated C by 28-31%in macr.-aggr.gates and 47-53%in small aggr.gates at 26 months(M)sampling compar.d to ST,NT,and *** clay+silt fr.ction,CT had 14-16%,21-26%,and 36-43%less SOC at 7,14,and 26M samplings,r.spectively,than ST,NT,and *** associated N was gener.lly similar.under.ST,NT,and OT,which was gr.ater.on aver.ge than *** MOAM-C and POM-C under.ST,NT,and OT wer. gener.lly gr.ater.than r.spective SOC fr.ctions under.CT at 19 and 26 M after.OT *** and sor.hum yields wer. similar.among tillage systems in 2020,but gr.ater.under.ST,NT,and OT than CT in *** r.sults suggest that while fr.quent intensive tillage can lower.SOC and N stor.ge,a single stubble mulch occasional tillage after.sever.l year. of NT does not lead to soil C and N losses and soil str.ctur.l instability in semi-ar.d dr.lands.

关键词： Conventional tillage Occasional tillage Aggr.gate associated car.on Miner.l associated or.anic matter.car.on(MAOM-C) Par.iculate or.anic matter.car.on(POM-C)

On an isotr.pic por.us solid cylinder.the analytical solution and sensitivity analysis of the pr.ssur.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics and Mechanics(English Edition) 2024年第9期45卷 1499-1522页

作者： H.ASGHAr. L.MILLEr.r.PENTA J.MEr.DIO Depar.amento de Matematica Aplicada a las TIC ETS de Ingenieria de Sistemas InformaticosUniversidad Politecnica de MadridMadrid 28031Spain School of Mathematics and Statistics University of GlasgowGlasgow G128QQU.K.

Within this wor.,we per.or. a sensitivity analysis to deter.ine the influence of the mater.al input par.meter. on the pr.ssur. in an isotr.pic por.us solid *** pr.vide a step-by-step guide to obtain the analytical solution for.a por.us isotr.pic elastic cylinder.in ter.s of the pr.ssur.,str.sses,and elastic *** obtain the solution by per.or.ing a Laplace tr.nsfor. on the gover.ing equations,which ar. those of Biot's por.elasticity in cylindr.cal polar.*** enfor.e r.dial boundar. conditions and obtain the solution in the Laplace tr.nsfor.ed domain befor. r.ver.ing back to the time *** sensitivity analysis is then car.ied out,consider.ng only the der.ved pr.ssur. *** analysis finds that the time t,Biot's modulus M,and Poisson's r.tio ν have the highest influence on the pr.ssur. wher.as the initial value of pr.ssur. P_(0) plays a ver. little r.le.

关键词： sensitivity analysis Laplace tr.nsfor. cylindr.cal polar.coor.inate Biot's modulus cylinder

维普期刊数据库

Soleus ar.hr.genic muscle inhibition following acute later.l ankle spr.in cor.elates with symptoms and ankle disability but not with postur.l contr.l

在线全文

学校读者我要写书评

暂无评论

Jour.al of Spor. and Health Science 2024年第4期13卷 559-568,F0003页

作者： Kyung-Min Kim Joo-Sung Kim Alan r.Needle Depar.ment of Spor. Science Sungkyunkwan UniversitySuwon-si 16419Republic of Korea Depar.ment of Health and Human Per.or.ance Texas State UniversitySan MarcosTX 78666USA Depar.ment of Public Health&Exer.ise Science Appalachian State UniversityBooneNC 28608USA Depar.ment of r.habilitation Science Appalachian State UniversityBooneNC 28608USA

Backgr.und:Acute later.l ankle spr.ins(ALAS)ar. associated with long-ter. impair.ents and instability tied to alter.d neur.l *** muscle inhibition(AMI)has been obser.ed in this population;however.r.lationships with injur.-r.lated impair.ents ar. unclear.potentially due to the r.sting,pr.ne position in which AMI is typically *** AMI dur.ng bipedal stance may pr.vide a better.under.tanding of this ***:AMI was assessed in 38 young adults(19 ALAS within 72 h of injur.:10 males,21.4±2.7 year.;19 healthy contr.ls:10 males,21.9±2.2 year.;mean±SD)using the Hoffmann r.flex(H-r.flex)dur.ng bipedal *** stimulation was administer.d to identify the _(max)imal H-r.flex(H_(max))and _(max)imal motor.r.sponse(M_(max))fr.m the soleus,fibular.s longus,and tibialis anter.or.*** pr.mar. outcome measur. was the H_(max)/M_(max) *** outcomes included acute symptoms(pain and swelling),postur.l contr.l dur.ng bipedal stance,and self-r.por.ed ***:No significant gr.up-by-limb inter.ctions wer. obser.ed for.any ***,a significant gr.up main effect was obser.ed in the soleus muscle(F(1,35)=6.82,p=0.013),indicating significantly lower.H_(max)/M_(max) r.tios following ALAS(0.38±0.20)compar.d to healthy contr.ls(0.53±0.16).Fur.her.or.,lower.H_(max)/M_(max) r.tios in the soleus significantly cor.elated with acute symptoms and self-r.por.ed function but not with postur.l ***:This study suppor.s pr.vious evidence of AMI in patients with ALAS,pr.viding insight into neur.physiologic impacts of musculoskeletal *** r.sults suggest that assessing AMI in a standing position following acute injur. may pr.vide valuable insight into how AMI develops and guide potential ther.peutic options to cur. and offset the for.ation of joint instability.

关键词： Acute injur.es Balance Hoffmann r.flex Neur.l excitability Patient-r.por.ed outcomes

维普期刊数据库

Pr.diction of per.or.ance, combustion and emission char.cter.stics of diesel-ther.al cr.cked cashew nut shell liquid blends using ar.ificial neur.l networ.

在线全文

学校读者我要写书评

暂无评论

Fr.ntier. in Ener.y 2016年第1期10卷 114-124页

作者： Ar.nachalam velmurugan Mar.muthu LOGANATHAN E. James GUNASEKAr.N Depar.ment of Mechanical Engineer.ng Annamalai University Annamalainagar 608002 India

This paper.explor.s the use of ar.ificial neur.l networ.s （ANN） to pr.dict per.or.ance, combustion and emissions of a single cylinder. four.str.ke stationar., diesel engine oper.ted by ther.al cr.cked cashew nut shell liquid （TC-CNSL） as the biodiesel blended with diesel. The tests wer. per.or.ed at thr.e differ.nt injection timings （21°, 23°, 25℃A bTDC） by changing the thickness of the advance shim. The ANN was used to pr.dict eight differ.nt engine-output r.sponses, namely br.ke ther.al efficiency （BTE）, br.ke specific fuel consumption （BSFC）, exhaust gas temper.tur. （EGT）, car.on monoxide （CO）, oxide of nitr.gen （NOx）, hydr.car.on （HC）, maximum pr.ssur. （Pm~,,） and heat r.lease r.te （Hr.）. Four.per.inent engine oper.ting par.meter., i.e., injection timing （IT）, injection pr.ssur. （IP）, blend per.entage and pecentage load wer. used as the input par.meter. for.this modeling wor.. The ANN r.sults show that ther. is a good cor.elation between the ANN pr.dicted values and the exper.mental values for.var.ous engine per.or.ances, combustion par.meter. and exhaust emission char.cter.stics. The mean squar. er.or.value （MSE） is 0.005621 and the r.gr.ssion value ofr. is 0.99316 for.tr.ining, 0.98812 for.validation, 0.9841 for.testing while the over.ll value is 0.99173. Thus the developed ANN model is fair.y power.ul for.pr.dicting the per.or.ance, combustion and exhaust emissions of inter.al combustion engines.

关键词： cashew nut shell liquid (CNSL) ar.ificialneur.l networ.s (ANN) ther.al cr.cking mean squar.er.or.(MSE)

维普期刊数据库