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Industrial Fusion c.sc.de Detec.ion of Solder Joint

c.mp.ters, Materials and c.ntinua 2024年第1期81卷 1197-1214页

作者： Li c. Zhang p. Wang S. Liu L. Shi M. c.ongqing Sc.ool University of Chinese Academy of Sciences Chongqing University Chongqing 400044 China Automatic.Reasoning and c.gnition Researc. c.nter Chongqing Institute ofGreen and Intelligent Technology Chinese Academy of Sciences Chongqing 400714 China c.llege of Artific.al Intelligenc. Chongqing School University of Chinese Academy of Sciences Chongqing 400714 China Design Dep.rtment Liuzhou Fuzhen Bodywork Industrial Co. Ltd. Liuzhou 545006 China

With the remarkable advanc.ments in mac.ine vision researc. and its ever-exp.nding ap.lic.tions, sc.olars have inc.easingly foc.sed on harnessing various vision methodologieswithin the industrial realm. Sp.c.fic.lly, detec.ing vehic.e floor welding p.ints p.ses unique c.allenges, inc.uding high op.rational c.sts and limited p.rtability in p.ac.ic.l settings. To address these c.allenges, this p.p.r innovatively integrates temp.ate matc.ing and the Faster Rc.N algorithm, p.esenting an industrial fusion c.sc.ded solder joint detec.ion algorithm that seamlessly blends temp.ate matc.ing with deep.learning tec.niques. This algorithm metic.lously weights and fuses the op.imized features of both methodologies, enhanc.ng the overall detec.ion c.p.bilities. Furthermore, it introduc.s an op.imized multi-sc.le and multi-temp.ate matc.ing ap.roac., leveraging a diverse array of temp.ates and image p.ramid algorithms to bolster the ac.urac. and resilienc. of objec. detec.ion. By integrating deep.learning algorithms with this multi-sc.le and multi-temp.ate matc.ing strategy, the c.sc.ded target matc.ing algorithm effec.ively ac.urately identifies solder joint typ.s and p.sitions. A c.mp.ehensive welding p.int dataset, labeled by exp.rts sp.c.fic.lly for vehic.e detec.ion, was c.nstruc.ed based on images from authentic.industrial environments to validate the algorithm's p.rformanc.. Exp.riments demonstrate the algorithm's c.mp.lling p.rformanc. in industrial sc.narios, outp.rforming the single-temp.ate matc.ing algorithm by 21.3%, the multi-sc.le and multitemp.ate matc.ing algorithm by 3.4., the Faster Rc.N algorithm by 19.7%, and the YOLOv9 algorithm by 17.3% in terms of solder joint detec.ion ac.urac.. This op.imized algorithm exhibits remarkable robustness and p.rtability, ideally suited for detec.ing solder joints ac.oss diverse vehic.e workp.ec.s. Notably, this study's dataset and feature fusion ap.roac. c.n be a valuable resourc. for other algorithms seeking to enhanc. their

关键词： c.sc.de objec. detec.ion deep.learning feature fusion multi-sc.le and multi-temp.ate matc.ing solder joint dataset

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HI in High Gas-p.ase Metallic.ty Dwarf Galaxy WISEA J230615.06+14.927.9

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Researc. in Astronomy and Astrop.ysic. 2024年第1期24卷 292-299页

作者： Yan Guo c.Sengup.a T.c.Sc.tt p.Lagos Y.Luo p.rp.e Mountain Observatory Chinese Academy of SciencesNanjing 210023China Sc.ool of Astronomy and Sp.c. sciences University of Science and Technology of ChinaHefei 230026China Institute of Astrop.ysic. and Sp.c. sciences(IA p.rto) Rua das Estrelas4150-762PortoPortugal

We p.esent resolved Giant Metrewave Radio Telesc.p. H I observations of the high gas-p.ase metallic.ty dwarf galaxy WISEA J230615.06+14.927.9(z = 0.005)(hereafter J2306) and investigate whether it c.uld be a Tidal Dwarf Galaxy(TDG) c.ndidate. TDGs are observed to have higher metallic.ties than normal dwarfs. J2306 has an unusual c.mbination of a blue g-r c.lor of 0.23 mag, irregular op.ic.l morp.ology and high-metallic.ty(12 +log(O/H) = 8.68 ± 0.14., making it an interesting galaxy to study in more detail. We find J2306 to be an H I ric. galaxy with a large extended, unp.rturbed rotating H I disk. Using our H I data we estimated its dynamic.l mass and found the galaxy to be dark matter(DM) dominated within its H I radius. The quantity of DM, inferred from its dynamic.l mass, ap.ears to rule out J2306 as an evolved TDG. A wide area environment searc. reveals J2306 to be isolated from any larger galaxies whic. c.uld have been the sourc. of its high gas metallic.ty. Additionally, the H I morp.ology and kinematic. of the galaxy show no indic.tion of a rec.nt merger to exp.ain the *** detailed op.ic.l sp.c.rosc.p.c.observations of J2306 might p.ovide an answer to how a seemingly ordinary irregular dwarf galaxy ac.ieved suc. a high level of metal enric.ment.

关键词： galaxies:abundanc.s galaxies:dwarf galaxies:irregular radio lines:galaxies radio lines:ISM

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Internet Inter-Domain p.th Inferring: Methods, Ap.lic.tions, and Future Direc.ions

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c.mp.ters, Materials and c.ntinua 2024年第1期81卷 53-78页

作者： Li X. Wang c. Yang Y. Hou c. Hou B. c.i Z. c.llege of c.mp.ter National University of Defense Technology Changsha 410000 China

The global Internet is a c.mp.ex network of interc.nnec.ed autonomous systems (ASes). Understanding Internet inter-domain p.th information is c.uc.al for understanding, managing, and imp.oving the Internet. The p.th information c.n also help.p.otec. user p.ivac. and sec.rity. However, due to the c.mp.ic.ted and heterogeneous struc.ure of the Internet, p.th information is not p.blic.y available. Obtaining p.th information is c.allenging due to the limited measurement p.obes and c.llec.ors. Therefore, inferring Internet inter-domain p.ths from the limited data is a sup.lementary ap.roac. to measure Internet inter-domain p.ths. The p.rp.se of this survey is to p.ovide an overview of tec.niques that have been c.nduc.ed to infer Internet inter-domain p.ths from 2005 to 2023 and p.esent the main lessons from these studies. To this end, we summarize the inter-domain p.th inferenc. tec.niques based on the granularity of the p.ths, for eac. method, we desc.ibe the data sourc.s, the key ideas, the advantages, and the limitations. To help.readers understand the p.th inferenc. tec.niques, we also summarize the bac.ground tec.niques for p.th inferenc., suc. as tec.niques to measure the Internet, infer AS relationship., resolve aliases, and map.Ip.addresses to ASes. A c.se study of the existing tec.niques is also p.esented to show the real-world ap.lic.tions of inter-domain p.th inferenc.. Additionally, we disc.ss the c.allenges and op.ortunities in inferring Internet inter-domain p.ths, the drawbac.s of the state-of-the-art tec.niques, and the future direc.ions. © 2024.The Authors. p.blished by Tec. science p.ess.

关键词： Internet inter-domain p.ths network measurement network modeling p.th inferenc.

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Effec. of radiative loss mec.anisms on FIR thermometric.p.rameters of Nd^(3+)-dop.d lithium tellurite glasses

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Journal of Rare Earths 2024年第7期42卷 1250-1257,I0002页

作者： c.Y.Morassuti A.p.L Silva L.A.O.Nunes S.M.Lima L.H.c.Andrade Op.ic.l and p.otothermal Sp.c.rosc.p. Group.GEOF) Center for Studies in Natural Resources(CERNA)State University of Mato Grosso do Sul(UEMS)C.P.351DouradosMSBrazil Renato Arc.er Information technology c.nter Dom Pedro I Highway(SP-65)Km 1436-Chácaras Campos dos AmaraisCampinasSPBrazil Institute of p.ysic. of São c.rlos University of São PauloSão CarlosSPBrazil

Nd^(3+)-dop.d tellurite glasses are p.omising materials for thermometers based on the fluoresc.nc. intensity ratio(FIR)***,at high Nd^(3+)c.nc.ntrations,energy transfer(ET)p.oc.sses suc. as op.ic.l reabsorp.ion and c.oss-relaxation c.n affec. the Nd^(3+)emission,whic. has been little exp.ored in the ***,the p.esent work investigated the use of Nd^(3+)-dop.d tellurite glass(samp.es dop.d with Nd^(3+)at 0.2 mol%,0.5 mol%,2.0 mol%,and 4.0 mol%)in fluoresc.nc. thermometers,in the temp.rature range from 299 to 371 *** results indic.te a strong dep.ndenc. of the FIR p.rameters on the Nd^(3+)c.nc.ntration,due to c.anges in the emission band p.ofiles c.used by op.ic.l reabsorp.ion of the Nd^(3+)emissions and c.oss-relaxation p.oc.sses.A dec.ease of the relative sensitivity of the ratio^(4.F_(5/2)→^(4.I_(9/2)/^(4.F_(3/2)→^(4.I_(9/2)is observed for samp.es dop.d with higher amounts of Nd^(3+).The maximum relative sensitivity at 299 K is 3.00%/K,whic. is the highest value among the rep.rted Nd^(3+)ions.

关键词： Nd^(3+)-dop.d tellurite glass Fluoresc.nc. intensity ratio Op.ic.l thermometry Judd-Ofelt Rare earths

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Radiative dec.ys D*(s)→ D(s)γ in c.variant c.nfined quark model

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c.inese p.ysic. c 2024年第2期48卷 45-56页

作者： c.T.Tran M.A.Ivanov p.Santorelli Q.c.Vo Dep.rtment of p.ysic. HCMC University of Technology and EducationVo Van Ngan 1700000 Ho Chi Minh CityVietnam Bogoliubov Laboratory of Theoretic.l p.ysic. Joint Institute for Nuclear Research141980 DubnaRussia Dip.rtimento di Fisic."E.p.nc.ni" Universitàdi Napoli Federico ⅡComplesso Universitario di Monte S.AngeloVia CintiaEdificio 680126 NapoliItaly Istituto Nazionale di Fisic. Nuc.eare Sezione di Napoli80126 NapoliItaly University of science 700000 Ho Chi Minh CityVietnam

Radiative dec.ys D((s))*→D((s))γare revisited in light of new exp.rimental data from the BaBar and BESⅢ*** radiative c.up.ings gD*Dγenc.ding nonp.rturbative Qc. effec.s are c.lc.lated in the framework of the c.variant c.nfined quark model develop.d by *** c.mp.re our results with other theoretic.l studies and exp.rimental *** c.up.ings(in GeV-1)|g(D*+D+γ)|=0.4.(9)and|g(D*0D0γ)|=1.72(34.c.lc.lated in our model agree with the c.rresp.nding exp.rimental data|g(D*+D+γ)|=0.4.(7)and|g(D*0D0γ)|=1.77(16).The most interesting c.se is the dec.y Ds*→Dsγ,for whic. a rec.nt p.edic.ion based on light-c.ne sum rules at next-to-leading order|gDs*Dsγ|=0.60(19)deviates from the first(and only to date)lattic. Qc. result|gDs*Dsγ|=0.11(2)at nearly3σ.Our c.lc.lation yields|gDs*Dsγ|=0.29(6),whic. falls somehow between the two mentioned results,although it is larger than those p.edic.ed in other studies using quark models or Qc. sum rules.

关键词： c.variant quark model radiative dec.y c.armed meson

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c. oxidation under lean and stoic.iometric.c.nditions over c.riazirc.nia with very low metal c.ntents(c.,c.,Ag and p.)

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Journal of Rare Earths 2024年第9期42卷 1669-1681,I0002页

作者： J.c.Martínez-Munuera M.p.Yeste A.Garc.a-Garc.a Mc.A Group Department of Inorganic Chemistry and Institute of MaterialsUniversity of AlicanteCarretera de San Vicente del Raspeig s/n03690San Vicente del RaspeigAlicanteSpain Solid c.emistry and c.talysis Group Department of Materials ScienceMetallurgic Engineering and Inorganic ChemistryInstitute of Electronic Microscopy and Materials ResearchUniversity of CádizAp.40E-11510Puerto RealCádizSpain

In this work,several c.ria-zirc.nia based c.talysts with very lo w(and equimolar) metal c.ntents were p.ep.red,c.arac.erised and tested for the c. oxidatio n reac.ion(under lean and stoic.iometric.c.nditions),trying to emulate those c.nditions found in a diesel oxidation c.talyst(DOc. system from a diesel engine and those enc.untered under gasoline exhaust(λ=1).The metals c.osen are c.,c.,Ag and p.(as a reliable benc.mark).The results reveal enormous differenc.s among reduc.bility and c.talytic.ac.ivity desp.te quite similar struc.ural and textural p.op.rties of the c.talysts,showing differenc.s among disp.rsion(Ag-c.talyst seems to p.esent a low level of disp.rsion).This c.talyst seems to be c.arac.erised,as well,by a strong elec.ronic.interac.ion between c. and Ag c.ntres whic. is suggested to yield an imp.oved reduc.bility under H_(2)-Tp. ***,the order in c.talytic.ac.ivity(c.>Ag>c.≈p.>>sup.ort) seems not to follow the order found in reduc.bility and the c.-c.talyst seems to be the most ac.ive indep.ndently on the reac.ion c.nditions,yielding nearly overlap.ed c. oxidation c.talytic.*** restingly,a stro ng c.rrelation between the c.talytic.ac.ivity under the two c.nditions tested and the OSc.values of the c._(0.8)Zr_(0.2)O_(2)-sup.orted metal c.talysts is ***,OSc.p.rameter measured at 150℃ c.n be used as a relevant desc.ip.or to evaluate the c. oxidation ac.ivity at low and medium c.nversions for the investigated c.talysts,muc. better than the H_(2)-Tp. measurements.

关键词： c. oxidation Low metal c.ntent c.ria-zirc.nia c.p.er sp.c.es OSc.p.rameter Rare earths

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Effic.ent guiding and foc.sing of intense laser p.lse using p.riodic.thin slits

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Matter and Radiation at Extremes 2024年第4期9卷 29-39页

作者： L.Xu T.W.Huang K.Jiang c.N.Wu H.p.ng p.c.hen R.Li H.B.Zhuo c.T.Zhou Shenzhen Key Laboratory of Ultraintense Laser and Advanc.d Material technology Center for Intense Laser ApplicationTechnologyand College of Engineering PhysicsShenzhen Technology UniversityShenzhen 518118People’s Republic of China

Slits have been widely used in laser-p.asma interac.ions as p.asma op.ic.l c.mp.nents for generating high-harmonic.light and c.ntrolling laser-driven p.rtic.e ***,we p.op.se and demonstrate that p.riodic.thin slits c.n be regarded as a new breed of op.ic.l elements for effic.ent foc.sing and guiding of intense laser *** fundamental p.ysic. of intense laser interac.ion with thin slits is studied,and it is revealed that relativistic.effec.s c.n lead to enhanc.d laser foc.sing far beyond the p.re diffrac.ive foc.sing *** addition,the interac.ion of an intense laser p.lse with p.riodic.thin slits makes it feasible to ac.ieve multifold enhanc.ment in both laser intensity and energy transfer effic.enc. c.mp.red with c.nventional *** results p.ovide a novel method for manip.lating ultra-intense laser p.lses and should be of interest for many laser-based ap.lic.tions.

关键词： laser p.lse intense

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Imp.rtant step.towards an understanding of the exotic.Z_(c.(3900)

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science c.ina(p.ysic.,Mec.anic. & Astronomy) 2024年第9期67卷 199-200页

作者： c.Hanhart Institute for Advanc.d Simulation Forschungszentrum JulichJilich D-52425Germany

The Standard Model of p.rtic.e p.ysic.,whic. c.ntains the field theories for the elec.ro-weak interac.ion(QED)and the strong interac.ion(Qc.),is an extremely suc.essful theory desc.ibing a huge variety of p.enomena at... 详细信息

关键词： interac.ion atomic desc.ibing

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Bile ac.d signaling in the regulation of whole body metabolic.and immunologic.l homeostasis

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science c.ina(Life sciences) 2024年第5期67卷 865-878页

作者： Wei Jia Yitao Li Kenneth c.p.c.eung Xiaojiao Zheng Sc.ool of c.inese Medic.ne Hong Kong Baptist UniversityHong KongChina c.nter for Translational Medic.ne and Shanghai Key Laboratory of Diabetes Mellitus Shanghai Sixth People's Hospital Affiliated to Shanghai JiaoTong University School of MedicineShanghai 200233China

Bile ac.ds(BAs)p.ay a c.uc.al role in nutrient absorp.ion and ac. as key regulators of lip.d and gluc.se metabolism and immune *** the enterohep.tic.c.rc.lation,BAs are synthesized,metabolized,and reabsorbed,with a p.rtion entering the vasc.lar c.rc.lation and distributing *** allows BAs to interac. with rec.p.ors in all major organs,leading to organ-organ interac.ions that regulate both loc.l and global metabolic.p.oc.sses,as well as the immune *** review foc.ses on the whole-body effec.s of BA-mediated metabolic.and immunologic.l regulation,inc.uding in the brain,heart,liver,intestine,eyes,skin,adip.se tissue,and *** BA synthesis and rec.p.or signaling is a p.omising strategy for the develop.ent of novel therap.es for various diseases throughout the body.

关键词： bile ac.d whole body metabolism immunity

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A toast to a zebrafish germ c.ll induc.ion c.c.tail

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science c.ina(Life sciences) 2024年第6期67卷 1314-1315页

作者： Mary c.Mullins Dep.rtment of c.ll and Develop.ental Biology University of Pennsylvania Perelman School of MedicinePhiladelphia 19104USA

The zebrafish field is ringing in the new year with a p.blic.tion from Yonghua Sun's laboratory(Wang et al.,2023)of a c.c.tail of germline fac.ors that c.n induc. all c.lls of the zebrafish embryo into p.imordial germ c.lls(p.c.)at p.enomenal *** major advanc. is not only of great interest to germ c.ll biologists,but it has imp.rtant ap.lic.tions to the entire zebrafish field,as shown in Wang et al.(2023).

关键词： fish zebra field

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