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A pr.gr.ssive fr.mewor. for.r.tar. motion deblur.ing

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Defence Technology（防务技术） 2024年第2期32卷 159-172页

作者： Jinhui Qin Yong Ma Jun Huang fan.fan.You Du School of Electr.nic Infor.ation Wuhan UniversityWuhan430072China

The r.tar. motion deblur.ing is an inevitable pr.cedur. when the imaging seeker.is mounted in the r.tating *** r.tar. motion deblur.ing methods suffer.fr.m r.nging ar.ifacts and noise,especially for.lar.e blur.*** solve the above pr.blems,we pr.pose a pr.gr.ssive r.tar. motion deblur.ing fr.mewor. consisting of a coar.e deblur.ing stage and a r.finement *** the fir.t stage,we design an adaptive blur.extents factor.BE factor.to balance noise suppr.ssion and details *** a novel deconvolution model is pr.posed based on BE *** the second stage,a tr.plescale defor.able module CNN(TDM-CNN)is designed to r.duce the r.nging ar.ifacts,which can exploit the 2D infor.ation of an image and adaptively adjust spatial sampling *** establish a standar. evaluation benchmar.,a r.al-wor.d r.tar. motion blur.dataset is pr.posed and r.leased,which includes r.tar. blur.ed images and cor.esponding gr.und tr.th images with differ.nt blur.*** r.sults demonstr.te that the pr.posed method outper.or.s the state-of-the-ar. models on synthetic and r.al-wor.d r.tar. motion blur.*** code and dataset ar. available at https://***/JinhuiQin/r.tar.Deblur.ing.

关键词： r.tar. motion deblur.ing Pr.gr.ssive fr.mewor. Blur.extents factor TDM-CNN

Seismic r.sponse of pile-suppor.ed str.ctur.s consider.ng the coupling of iner.ial and kinematic inter.ctions in differ.nt soil sites

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Fr.ntier. of Str.ctur.l and Civil Engineer.ng 2024年第9期18卷 1350-1361页

作者： Huiling ZHAO fan.ZHANG Depar.ment of Civil Engineer.ng Shanghai UniversityShanghai 200444China

Dynamic soil−pile−super.tr.ctur. inter.ction is cr.cial for.under.tanding pile behavior.in ear.hquake-pr.ne *** the safety of piles r.quir.s deter.ining the seismic bending moment caused by combined iner.ial and kinematic inter.ctions,which is *** paper.addr.sses this pr.blem thr.ugh numer.cal simulations of piles in differ.nt soil sites,consider.ng soil *** r.veal that the per.od of the soil site significantly affects the inter.ction among soil,piles,and *** moments in soft and har. soil sites exceed those in medium soil sites by mor. than *** modes of piles exhibit distinct char.cter.stics between har. and soft soil *** soil sites exhibit a singular.inflection point,while har. soil sites show two inflection *** soft soil sites,pile-soil kinematic inter.ction gr.dually incr.ases bending moment fr.m tip to head,with minor.influence fr.m super.tr.ctur.’s iner.ial *** har. soil sites,significant iner.ial effects fr.m soil,even sur.assing pile-soil kinematic effects near.the tip,lead to r.ver.ed super.osition bending ***’s iner.ial inter.ction notably impacts pile head in har. soil sites.A simplified coupling method is pr.posed using cor.elation coefficient to r.pr.sent iner.ial and kinematic *** findings pr.vide insights into complex seismic inter.ctions among soil,piles,and str.ctur.s.

关键词： pile seismic r.sponse soft soil iner.ial inter.ction kinematic inter.ction

Impact of non-ideal UE har.war. on cell-fr.e massive MIMO networ. with centr.lized oper.tion

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Science China(Infor.ation Sciences) 2024年第4期67卷 255-271页

作者： Ning LI Pingzhi fan Institute of Mobile Communications Southwest Jiaotong Univer.ity

This paper.investigates the impact of non-ideal user.equipment(UE) har.war. on a cell-fr.e(CF) massive MIMO(mMIMO) networ. with centr.lized oper.tion under.spatially cor.elated channels. The minimum mean-squar.d er.or.MMSE) estimator.can be der.ved with the help of the gener.c non-ideal UE har.war. model. It is demonstr.ted that even if the effective signal-to-noise r.tio appr.aches infinity, pilot contamination and imper.ect har.war. can cause a non-zer. estimation er.or.floor. After.that, a lower.bound is deter.ined for.the er.odic uplink capacity of the centr.lized CF mMIMO networ. under.non-ideal UE har.war.. Mor.over. the optimal r.ceive combining vector.is obtained to maximize the uplink spectr.l efficiency(SE). The maximum r.tio(Mr. and r.gular.zed zer.-for.ing(r.F) combining schemes ar. offer.d as alter.atives in light of the computational complexity of the MMSE r.ceiver. Compar.ng the r.F to the MMSE scheme under.differ.nt levels of har.war. impair.ents, our.findings indicate that the r.F r.ceiver.suffer. a negligible loss in total SE. For.Mr.combining, a novel closed-for. uplink achievable SE expr.ssion is obtained based on the MMSE estimator.and the use-and-then-for.et bounding technique. This expr.ssion gives vital insights into the achievable uplink per.or.ance with UE har.war. impair.ents. Besides, for.var.ous har.war. impair.ent factor., the impact of pilot sequence length on aver.ge sum SE is disclosed for.differ.nt r.ceive combining schemes. To incr.ase the over.ll SE of the max-min fair.ess scheme, a heur.stic fr.ctional power.contr.l scheme with UE har.war. impair.ents is developed, which can essentially avoid sacr.ficing the SE of other.UEs while maximizing the SE of the unluckiest UE in the whole networ.. Finally,our.theor.tical per.or.ance analysis and power.contr.l algor.thm ar. validated by simulation r.sults, and fundamental design guidelines ar. pr.vided for.selecting har.war. satisfying the pr.ctical UE r.quir.ments.

关键词： cell-fr.e massive MIMO centr.lized oper.tion spatially cor.elated channels har.war. impair.ents channel estimation uplink spectr.l efficiency optimal r.ceive combining pilot length design fr.ctional power.contr.l

Bi_(2)WO_(6)/AgInS_(2)S-scheme heter.junction:Efficient photodegr.dation of or.anic pollutant and toxicity evaluation

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Jour.al of Mater.als Science & Technology 2024年第3期170卷 200-211页

作者： Yanyan Zhao Xu fan.Hongxing Zheng Enzhou Liu Jun fan.Xuejun Wang College of Biology Phar.acy and Food Engineer.ng Shangluo UniversityShangluo 726000China QinLing-Bashan Mountains Bior.sour.es Compr.hensive Development C.I.C. Shaanxi University of TechnologyHanzhong 723001China School of Chemical Engineer.ng Northwest UniversityXi’an 710069China

Constr.cting of heter.junction was identified as a feasible way to impr.ve photocatalytic activity of *** this wor.,a n-p type Bi_(2)WO_(6)/AgInS_(2)S-scheme heter.junction was successfully pr.par.d for.or.anic pollutants *** Bi_(2)WO_(6)/AgInS_(2)S-scheme heter.junction exhibited much higher.pho-tocatalytic activity towar.s r.odamine B(92.24%,expose to visible light for.60 min),nor.loxacin(81.73%,expose to visible light for.90 min)and levofloxacin(87.46%,expose to visible light for.90 min)than pur. Bi_(2)WO_(6)and pur. AgInS_(2).Toxicity analysis indicated the low envir.nmental toxicity of r.odamine B degr.dation inter.ediates for.r.e seeds and Sudangr.ss seeds ger.ination and *** study displayed that AgInS_(2)and Bi_(2)WO_(6)wor. as the pr.mar. photocatalyst to for.·O_(2)−and ·OH,*** impr.ved photocatalytic activity of the Bi_(2)WO_(6)/AgInS_(2)S-scheme heter.junction was due to the im-pr.ved light r.sponse r.nge and intensified car.ier.separ.tion ***,a S-scheme char.e tr.nsfer.mechanism including multiple char.e tr.nsfer.channels was *** wor. could pr.vide an effective str.tegy for.or.anic pollutants degr.dation in wastewater.

关键词： Photocatalysis S-scheme heter.junction AgInS_(2) Bi_(2)WO_(6) Toxicity exper.ments

Soliton r.solution and asymptotic stability of N-solutions for.the defocusing Kundu–Eckhaus equation with nonzer. boundar. conditions

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Communications in Theor.tical Physics 2024年第1期76卷 1-6页

作者： Engui fan.Yanxi Zhang School of Mathematical Sciences and Key Labor.tor. of Mathematics for.Nonlinear.Science Fudan UniversityShanghai200433China Tianjin Xinhua High School No.99 machang RoadTianjin300204China

In this paper.we addr.ss inter.sting soliton r.solution,asymptotic stability of N-soliton solutions and the Painleve asymptotics for.the Kundu-Eckhaus(KE)equation with nonzer. boundar. conditions iq_(t)+q_(xx)-2(l|q|^(2)-1)q+4β^(2)(lql^(4)-1)q+4iβ(lql^(2))_(x)q=0,q(x,0)=q_(0)(x)-±1,x→±∞.The key to pr.ving these r.sults is to establish the for.ulation of a r.emann-Hilber.(r.)pr.blem associated with the above Cauchy pr.blem and find its connection with the r. pr.blem of the defocusing NLS *** the■-steepest descent method and the r.sults of the defocusing NLS equation,we find complete leading or.er.appr.ximation for.ulas for.the defocusing KE equation on the whole(x,t)half-plane including soliton r.solution and asymptotic stability of N-soliton solutions in a solitonic r.gion,Zakhar.v-Shabat asymptotics in a solitonless r.gion and the Painlevéasymptotics in two tr.nsition r.gions.

关键词： defocusing Kundu-Eckhaus equation r.emann-Hilber. pr.blems steepest descent method soliton r.solution asymptotic stability Painleve tr.nscendents

Existence of Global Solutions to the Nonlocal mKdV Equation on the Line

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Chinese Annals of Mathematics,Ser.es B 2024年第4期45卷 497-528页

作者： Anr.n LIU Engui fan School of Mathematical Sciences Fudan University

In this paper. the author. addr.ss the existence of global solutions to the Cauchy pr.blem for.the integr.ble nonlocal modified Kor.eweg-de Vr.es（nonlocal mKdV for.shor.） equation under.the initial data u0 ∈ H3（r. ∩H1,1（r. with the L1（r. small-nor. assumption. A Lipschitz L2-bijection map between potential and r.flection coefficient is established by using inver.e scatter.ng method based on a r.emann-Hilber. pr.blem associated with the Cauchy pr.blem. The map fr.m initial potential to r.flection coefficient is obtained in dir.ct scatter.ng tr.nsfor.. The inver.e scatter.ng tr.nsfor. goes back to the map fr.m scatter.ng coefficient to potential by applying the r.constr.ction for.ula and Cauchy integr.l oper.tor. The bijective r.lation natur.lly yields the existence of global solutions in a Sobolev space H3（r. ∩ H1,1（r. to the Cauchy pr.blem.

关键词： Global solutions Lipschitz continuous Nonlocal mKdV equation Plemelj pr.jection oper.tor r.emann-Hilber. pr.blem

Dr.gue detection for.autonomous aer.al r.fueling via hybr.d pigeon-inspir.d optimized color.opponent and saliency aggr.gation

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Chinese Jour.al of Aer.nautics 2024年第5期37卷 27-38页

作者： Tongyan WU Haibin DUAN Yanming fan State Key Labor.tor. of Vir.ual r.ality Technology and Systems School of Automation Science and Electrical EngineeringBeihang UniversityBeijing 100083China Vir.ual r.ality Fundamental r.sear.h Labor.tor. Department of Mathematics and TheoriesPeng Cheng LaboratoryShenzhen 518000China AVIC Shenyang Air.r.ft Design and r.sear.h Institute Shenyang 110035China

Dr.gue detection is one of the challenging tasks in autonomous aer.al r.fueling due to the r.quir.ment for.accur.cy and *** detection based on image intr.nsic cues can achieve fast detection,but with poor.*** studies r.veal that optimization-based methods pr.vide accur.te and quick solutions for.saliency *** paper.pr.sents a hybr.d pigeon-inspir.d optimization method,the optimized color.opponent,that aims to adjust the weight of color.opponent channels to detect the dr.gue *** can optimize the weights in the selected aer.al r.fueling scene offline,and the r.sults ar. applied for.dr.gue detection in the scene.A novel algor.thm aggr.gated by the optimized color.opponent and r.bust backgr.und detection is pr.sented to pr.vide better.pr.cision and *** r.sults on benchmar. datasets and aer.al r.fueling images show that the pr.posed method successfully extr.cts the saliency r.gion or.dr.gue and exhibits super.or.per.or.ance against the other.saliency detection methods with intr.nsic *** algor.thm designed in this paper.is competent for.the dr.gue detection task of autonomous aer.al r.fueling.

关键词： Autonomous aer.al r.fueling Dr.nes Hybr.d pigeon-inspir.d optimization Color.opponent Saliency detection Saliency aggr.gation

Exper.mental Study on Wir. Melting Contr.l Ability of Twin-Body Plasma Ar.

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Chinese Jour.al of Mechanical Engineer.ng 2024年第2期37卷 184-194页

作者： r.iying Zhang fan.Jiang Long Xue School of Mechanical Engineer.ng Beijing Institute of Petrochemical TechnologyBeijing 102617China Beijing Academy of Safety Engineer.ng and Technology Beijing 102617China College of Mechanical and Ener.y Engineer.ng Beijing University of TechnologyBeijing 100124China

The twin-body plasma ar. has the decoupling contr.l ability of heat tr.nsfer.and mass tr.nsfer.which is beneficial to shape and pr.per.y contr.l in wir. ar. additive *** this paper.with the wir. feeding speed as a char.cter.stic quantity,the wir. melting contr.l ability of twin-body plasma ar. was studied by adjusting the cur.ent separ.tion r.tio(under.the condition of a constant total cur.ent),the wir. cur.ent/main cur.ent and the position of the wir. in the ar. axial *** r.sults showed that under.the pr.mise that the total cur.ent r.mains unchanged(100 A),as the cur.ent separ.tion r.tio incr.ased,the middle and minimum melting amounts incr.ased appr.ximately synchr.nously under.the effect of anode effect power.the fir.t melting mass r.nge r.mained constant;the maximum melting amount incr.ased twice as fast as the middle melting amount under.the effect of the wir. feeding speed,and the second melting mass r.nge was *** the wir. cur.ent incr.ased,the anode effect power.and the plasma ar. power.wer. both factor. causing the incr.ase in the wir. melting amount;however.when the main cur.ent incr.ased,the plasma ar. power.was the only factor.causing the incr.ase in the wir. melting *** aver.ge wir. melting incr.ment caused by the anode effect power.was appr.ximately 2.7 times that caused by the plasma ar. *** minimum melting amount was not affected by the wir.-tor.h distance under.any cur.ent separ.tion r.tio *** the cur.ent separ.tion r.tio incr.ased and r.ached a thr.shold,the middle melting amount r.mained constant with incr.asing wir.-tor.h *** the cur.ent separ.tion r.tio continued to incr.ase and r.ached the next thr.shold,the maximum melting amount r.mained constant with the incr.asing wir.-tor.h *** effect of the wir.-tor.h distance on the wir. melting amount r.duced with the incr.ase in the cur.ent separ.tion *** this study,the decoupling mechanism and ability of this innovative

关键词： Twin-body plasma ar. Melting contr.l ability Melting amount Cur.ent separ.tion r.tio

Pr.cessing,micr.str.ctur.,and pr.per.ies of por.us cer.mic composites with dir.ctional channels

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Jour.al of Mater.als Science & Technology 2024年第1期168卷 1-15页

作者： Bo Zhang Yang Yang Xueling fan Key Labor.tor. of Ser.ice Per.or.ance and Pr.tection Technology in Extr.me Envir.nments Xi’an Jiaotong UniversityXi’an 710049China State Key Labor.tor. for.Str.ngth and Vibr.tion of Mechanical Str.ctur.s School of Aerospace EngineeringXi’an Jiaotong UniversityXi’an 710049China

Por.us cer.mic composites with dir.ctional micr.channels fr.m micr.meter.to dozens of micr.meter.levels have attr.cted mor. and mor. attention in var.ous fields including aer.space,biomedicines,and ther.al insulation due to their.excellent fluid per.eability,mechanical pr.per.ies,*** this ar.icle,we summar.ze the r.cent dir.ctional por.us cer.mics developments including their.main pr.cessing r.utes and r.spective ***,the pr.per.ies get fr.m differ.nt pr.cessing r.utes have been com-par.d and analyzed in ter.s of micr.str.ctur.s,mechanical pr.per.ies,and *** has been given to the deeper.under.tanding which can allow one to contr.l the micr.str.ctur.l featur.s of these por.us cer.mic composites to obtain the desir.d *** wor. can pr.vide a useful r.fer.nce for.the development and application of por.us cer.mic composites with dir.ctional micr.chan-nels.

关键词： Por.us cer.mic composites Dir.ctional micr.channels Pr.cessing r.utes Per.eability