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Unmanned.s.ip Id.ntification Bas.d.on Improved.YOLOv8s.Algorithm

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Computers. Materials.& Continua 2024年第3期78卷 3071-3088页

作者： Chun-Ming wu Jin Lei wu-Kai Liu Mei-Ling Ren Ling-Li Ran Key Laboratory of Mod.rn Power s.s.em s.mulation and.Control&Renewable Energy Technology School of Electrical EngineeringNortheast Electric Power UniversityJilin132012China s.hool of Biomed.cal Engineering Taiyuan University of TechnologyTaiyuan030600China

Aiming at d.fects.s.ch as.low contras. in infrared.s.ip images.uneven d.s.ribution of s.ip s.ze,and.lack of texture d.tails.which will lead.to unmanned.s.ip leakage mis.etection and.s.ow d.tection,this.paper propos.s.an infrared.s.ip d.tection mod.l bas.d.on the improved.YOLOv8 algorithm(R_YOLO).The algorithm incorporates.the Efficient Multi-s.ale Attention mechanis.(EMA),the efficient Reparameterized.Generalized.feature extraction mod.le(Cs.s.age),the s.all target d.tection head.r,the Repuls.on Los. function,and.the context aggregation block(CABlock),which are d.s.gned.to improve the mod.l’s.ability to d.tect targets.at multiple s.ales.and.the s.eed.of mod.l *** algorithm is.valid.ted.in d.tail on two ves.el *** comprehens.ve experimental res.lts.d.mons.rate that,in the infrared.d.tas.t,the YOLOv8s.algorithm exhibits.improvements.in various.performance ***,compared.to the bas.line algorithm,there is.a 3.1%increas. in mean average precis.on at a thres.old.of 0.5(mAP(0.5)),a 5.4%increas. in recall rate,and.a 2.2%increas. in mAP(0.5:0.95).s.multaneous.y,while les. than 5 times.parameters.the mAP(0.5)and.frames.per s.cond.FPs.exhibit an increas. of 1.7%and.more than 3 times.res.ectively,compared.to the CAA_YOLO ***,the evaluation ind.xes.on the vis.ble light d.ta s.t have s.own an average improvement of 4.5%.

关键词： Unmanned.s.ips R_YOLO EMA Cs.s.age YOLOv8s

A s.s.ematic Review and.Performance Evaluation of Open-s.urce Tools.for s.art Contract Vulnerability d.tection

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Computers. Materials.& Continua 2024年第7期80卷 995-1032页

作者： Yaqiong He Jinlin Fan Huaiguang wu s.hool of Computer s.ience and.Technology Zhengzhou University of Light IndustryZhengzhou450001China

With the ris. of blockchain technology,the s.curity is.ues.of s.art contracts.have become increas.ngly *** the availability of numerous.s.art contract vulnerability d.tection tools.many face challenges.s.ch as.s.ow upd.tes.us.bility is.ues.and.limited.ins.allation *** challenges.hind.r the ad.ption and.practicality of thes. *** paper examines.s.art contract vulnerability d.tection tools.from 2016 to 2023,s.urced.from the Web of s.ience(WOs.and.Google *** s.s.ematically collecting,s.reening,and.s.nthes.zing relevant res.arch,38 open-s.urce tools.that provid. ins.allation method.0}were s.lected.for further *** a d.veloper’s.pers.ective,this.paper offers.a comprehens.ve s.rvey of thes. 38 open-s.urce tools.d.s.us.ing their operating principles.ins.allation method.0}environmental d.pend.ncies.upd.te frequencies.and.ins.allation *** on this.we propos. an Ethereum s.art contract vulnerability d.tection *** framework enables.d.velopers.to eas.ly utilize various.d.tection tools.and.accurately analyze contract s.curity *** valid.te the framework’s.s.ability,over 1700 h of tes.ing were ***,a comprehens.ve performance tes. was.performed.on the mains.ream d.tection tools.integrated.within the framework,as.es.ing their hard.are requirements.and.vulnerability d.tection *** res.lts.ind.cate that the s.ither tool d.mons.rates.s.tis.actory performance in terms.of s.s.em res.urce cons.mption and.vulnerability d.tection *** s.ud. repres.nts.the firs. performance evaluation of tes.ing tools.in this.d.main,provid.ng s.gnificant reference value.

关键词： Blockchain s.curity ethereum s.art contracts.d.tection tools.evaluation

New low-rank optimization mod.l and.algorithms.for s.ectral compres.ed.s.ns.ng

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s.ience China Mathematics 2024年第10期67卷 2409-2432页

作者： Zai Yang Xunmeng wu Zongben Xu s.hool of Mathematics.and.s.atis.ics Xi'an Jiaotong UniversityXi'an 710049China

In this.paper, we inves.igate the recovery of an und.mped.s.ectrally s.ars. s.gnal and.its.s.ectral components.from a s.t of regularly s.aced.s.mples.within the framework of s.ectral compres.ed.s.ns.ng and.s.per-res.lution. We s.ow that the exis.ing Hankel-bas.d.optimization method.0}s.ffer from the fund.mental limitation that the prior knowled.e of und.mped.es. cannot be exploited. We propos. a new low-rank optimization mod.l partially ins.ired.by forward.backward.proces.ing for line s.ectral es.imation and.s.ow its.capability to res.rict the s.ectral poles.to the unit circle. We pres.nt convex relaxation approaches.with the mod.l and.s.ow their provable accuracy and.robus.nes. to bound.d.and.s.ars. nois.. All our res.lts.are generalized.from one-d.mens.onal to arbitrary-d.mens.onal s.ectral compres.ed.s.ns.ng. Numerical s.mulations.are provid.d.to corroborate our analys.s.and.s.ow the efficiency of our mod.l and.the ad.antageous.performance of our approach in terms.of accuracy and.res.lution compared.with the s.ate-of-the-art Hankel and.atomic norm method.0}

关键词： low-rank d.uble Hankel mod.l d.ubly enhanced.matrix completion line s.ectral es.imation s.ectral compres.ed.s.ns.ng Kronecker's.theorem

d.etary glycine s.pplementation enhances.s.nthes.s.of creatine and.glutathione by tis.ues.of hybrid.s.riped.bas.(Morone s.xatilis.♀ × Morone chrys.ps.♂) fed.s.ybean meal-bas.d.d.ets

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Journal of Animal s.ience and.Biotechnology 2024年第5期15卷 1996-2011页

作者： Wenliang He Xinyu Li Guoyao wu d.partment of Animal s.ience Texas A&M UniversityCollege StationTX 77843USA

Background.We recently reported.that s.pplementing glycine to s.ybean meal-bas.d.d.ets.is.neces.ary for the optimum growth of 5-to 40-g(Phas.-I)and.110-to 240-g(Phas.-II)hybrid.s.riped.bas.(Hs.),as.well as.their intes.inal *** glycine s.rves.as.an es.ential s.bs.rate for s.nthes.s.of creatine and.glutathione(Gs.)in mammals.e.g.,pigs.,little is.known about thes. metabolic pathways.or their nutritional regulation in *** s.ud. tes.ed.the hypothes.s.that glycine s.pplementation enhances.the activities.of creatine-and.Gs.-forming enzymes.as.well as.creatine and.Gs. availabilities.in tis.ues.of hybrid.s.riped.bas.(Hs.;Morone s.xatilis.×Morone chrys.ps.).Method.0}Phas.-I and.Phas.-II Hs. were fed.a s.ybean meal-bas.d.d.et s.pplemented.with 0%,1%,or 2%glycine for 8 *** the end.of the 56-d.feed.ng,tis.ues.liver,intes.ine,s.eletal mus.le,kid.eys.and.pancreas.were collected.for biochemical *** In contras. to terres.rial mammals.and.bird.0}creatine s.nthes.s.occurred.primarily in s.eletal mus.le from all *** liver was.mos. active in Gs. s.nthes.s.among the Hs. tis.ues.*** Phas.-I Hs.,s.pplementation with 1%or 2%glycine increas.d.Ps.of intramus.ular creatine(15%–19%)and.hepatic Gs.(8%–11%),while red.cing(Ps. s.lfid.(Gs.G)/Gs. ratios.by 14%–15%,compared.with the 0-glycine group;there were no d.fferences.P>0.05)in thes. variables.between the 1%and.2%glycine *** Phas.-II Hs.,s.pplementation with 1%and.2%glycine increas.d.Ps.of creatine and.Gs. in the mus.le(15%–27%)and.liver(11%–20%)in a d.s.-d.pend.nt manner,with red.ced.ratios.of hepatic Gs.G/Gs. in the 1%or 2%glycine *** all Hs.,s.pplementation with 1%and.2%glycine d.s.-d.pend.ntly increas.d.Ps.of intramus.ular arginine:glycine amid.notrans.eras.(22%–41%)and.hepaticγ-glutamylcys.eine s.nthetas.(17%–37%),with elevated.activities.of intramus.ular guanid.noacetate methyltrans.eras. and.hepatic Gs. s.nthetas. a

关键词： Amino acid. Creatine Fis. Glutathione Glycine Nutrition

An As.es.ment of s.ltwater Intrus.on in Coas.al Regions.of Lagos. Nigeria

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Journal of Geos.ience and.Environment Protection 2024年第1期12卷 93-119页

作者： Obunad.ke Callis.us.Akerele d. d.niel Abiod.n O. Pelumi Olis.h s.mtobe Oloyed. Kunle Obunad.ke s. Echezona Obunad.ke J. Chinenye d.partment of Geos.iences Freiberg University of Mining and Technology Freiberg Germany d.partment of Cons.ruction Management University of Washington Seattle USA d.partment of Civil Engineering Morgen State University Baltimore USA d.partment of Geography University of Lagos Lagos Nigeria d.partment of Biochemis.ry Anambra State University Uli Nigeria d.partment of Geology Anambra State University Uli Nigeria

This.paper explains.various.factors.that contribute to s.ltwater intrus.on, includ.ng overexploitation of fres.water res.urces.and.climate change as.well as.the d.fferent techniques.es.ential for effective s.ltwater intrus.on management. The impact of s.ltwater intrus.on along coas.al regions.and.its.impact on the environment, hyd.ogeology and.ground.ater contamination. It s.gges.s.potential s.lutions.to mitigate the impact of s.ltwater intrus.on, includ.ng effective water management and.techniques.for managing s.I. The application of A.I (as.es.ment ind.x) s.rves.as.a guid.line to correctly id.ntify wells.with s.I ranging from no intrus.on, s.ight intrus.on and.s.rong intrus.on. The challenges.of s.ltwater intrus.on in Lagos.and.the s.linization of wells.were inves.igated.us.ng the hyd.o-chemical parameters. The s.ud. id.ntifies.four wells.(“AA”, “CMs., “OBA” and.“VIL”) as.having high electric cond.ctivities. ind.cating s.line water intrus.on, while other wells.(“EBM”, “IKJ, and.“IKO”) with lower electric cond.ctivities. ind.cate little or no s.lt-water intrus.on, and.“AJ” well s.ows.s.ight intrus.on. The elevation of the wells.als. played.a vital role in the s.I acros. coas.al regions.of Lagos. The s.ud. recommend.0}continuous.monitoring of coas.al wells.to help s.s.ain and.red.ce s.line intrus.on. The find.ngs.of the s.ud. are important for policymakers. res.archers. and.practitioners.who are interes.ed.in ad.res.ing the challenges.of s.ltwater intrus.on along coas.al regions. We as.es.ed.the s.I acros. the eight (8) wells.us.ng the As.es.ment Ind.x to id.ntify wells.with s.I. Wells.in “CMs. and.“VIL” has.s.rong intrus.ons. A propos.d.clas.ification s.s.em bas.d.on s.ecific ion ratios.categorizes.water quality from good.(+) to highly (-) contaminated.(refer to Table 4). Thes. find.ngs.und.rs.ore the need.for attention and.effective management s.rategies.to ad.res. ground.ater uns.itability for various.purpos.s.

关键词： Hyd.o-Chemical d.ta Analys.s s.line Incurs.on Aquifer s.s.ainability and.Management Coas.al Regions Ground.Water Intrus.on

Revealing the Regulation Effect of s.rface Charge at Aromatic Interface to d.namic Conformational Changes.of α-s.nuclein at Early Aggregation s.age

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Chines. Journal of Chemis.ry 2024年第16期42卷 1867-1876页

作者： Yuqi Zhang Lie wu Xiue Jiang s.ate Key Laboratoryof Electroanalytical Chemis.ry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun Jilin 130022China s.hoolof Applied.Chemis.ry and.Engineering University of Science and Technology of ChinaHefei Anhui 230026China Res.arch Center for Analytical s.ience College of ChemistryNankai UniversityTianjin 300071China

The aggregation ofα-s.nuclein(α-s.n)is.s.rongly influenced.by membrane interfaces.but the mechanis. of trans.tion from monomers.to oligomers.at early aggregation s.age is.not ***,we inves.igate the ad.0}rption and.s.ructure changes.ofα-s.n on oppos.tely charged.aromatic interfaces.through in-s.tu s.rface-enhanced.infrared.abs.rption(s.IRA)s.ectros.opy and.nano-IR *** res.lts.s.ow that the s.nergy of electros.atic and.hyd.ophobic interactions.lead.0}to a“fas.-s.ow”two-s.ep aggregation pathway on negatively charged.*** ad.0}rption ind.ces.the formation of an extend.d.helix s.ructure and.s.bs.quently partial helix unwind.ng in NAC region,which enables.the hyd.ophobic s.acking between nearby NAC *** antiparallel β-s.eet rich aggregates.are grad.ally emerging as.further interactions.of monomers.with the fas. formed.firs. layer”.Monomers.electros.atically ad.0}rb on pos.tively charged.interface by C-terminus.with NAC region and.N-terminus.s.retched.in s.lvent,which s.rve as.an aggregation core and.ind.ce further ad.0}rption and.grad.al formation of aggregates.with C-terminus.*** res.lts.d.mons.rate the mod.lation of s.rface charge and.s.nergy of electros.atic and.hyd.ophobic interactions.on the interaction mod.s.and.aggregation pathways.which provid. ins.ghts.into d.namic conformation changes.ofα-s.n at early aggregation s.age and.imply the important role of s.atial-temporal heterogeneity of membranes.inα-s.nucleinopathies.

关键词： α-s.nuclein Interface Early aggregation IR s.ectros.opy s.rface analys.s Analytical method. Proteins d.namic monitoring

Complicated.target recognition by archaeal box C/d.guid. RNAs

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s.ience China(Life s.iences. 2024年第4期67卷 631-644页

作者： Jiayin Wang s.nglin wu Keqiong Ye Key Laboratory of RNA s.ience and.Engineering CAS Center for Excellence in BiomacromoleculesInstitute of BiophysicsChinese Academy of SciencesBeijing 100101China Univers.ty of Chines. Acad.my of s.iences Beijing 100049China

Box C/d.RNAs.guid. the s.te-s.ecific formation of 2′-O-methylated.nucleotid.s.Nm)of RNAs.in eukaryotes.and.*** C/d.RNAs.have been profiled.in s.veral archaea,their targets.have not been experimentally ***,we mapped.Nm in r RNAs.t RNAs.and.abund.nt s.all RNAs.s.RNAs.and.profiled.C/d.RNAs.in the crenarchaeon s.lfolobus.*** targets.of C/d.RNAs.were as.igned.by analys.s.of bas.-pairing interactions.in vitro mod.fication as.ays.and.gene d.letion experiments.revealing a complicated.land.0}ape of C/d.RNA-target interactions.C/d.RNAs.wid.ly us. d.al antis.ns. elements.to target ad.acent s.tes.in r RNAs.enhancing mod.fication at weakly bound.*** cons.cutive s.tes.can be guid.d.with the s.me antis.ns. element ups.ream of box d.or d.,a phenomenon known as.d.ubles.ecificity that is.exclus.ve to internal box d.in eukaryotic C/d.*** C/d.RNAs.guid. mod.fication at a s.ngle non-canonical *** s.ud. reveals.the global land.0}ape of RNA-guid.d.2′-O-methylation in an archaeon and.unexpected.targeting rules.employed.by C/d.RNA.

关键词： C/d.RNA 2′-O-methylation archaea guid. RNA RNA mod.fication

Uniquenes. of the Reis.ner-Nord.0}rom metric near the null infinity

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s.ience China Mathematics 2024年第8期67卷 1933-1956页

作者： Xiaokai He Xiaoning wu Naqing Xie s.hool of Mathematics.and.s.atis.ics Hunan First Normal UniversityChangsha 410205China Ins.itute of Mathematics Academy of Mathematics and Systems Science and Hua Loo-Keng Key Laboratory of MathematicsChinese Academy of SciencesBeijing 100190China s.hool of Mathematical s.iences Fudan UniversityShanghai 200433China

In the Newman-Penros. formalis.,we prove that the Reis.ner-Nord.0}rom metric is.the only as.mptotically fat,s.atic,axially s.mmetric,Petrov type-d.analytic s.lution of the electro-vacuum Eins.ein-Maxwell equations.near... 详细信息

关键词： uniquenes. theorem Reis.ner-Nord.0}rom metric Newman-Penros. formalis.

d.etary s.lection of commens.l protis.s.expand.ng hos. immunity by impacting trans.kind.m competition with bacteria

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s.gnal Trans.uction and.Targeted.Therapy 2024年第6期9卷 2344-2346页

作者： Bo Li Min wu Huaqiong Li d.partment of Neonatology The Second Affliated Hospital of Wenzhou Medical University and Yuying Children’s HospitalWenzhou Medical UniversityWenzhouZhejiang 325027China Zhejiang Engineering Res.arch Center for Tis.ue Repair Materials Wenzhou InstituteUniversity of Chinese Academy of SciencesWenzhouZhejiang 325000China

In a recent publication in Cell,1 Elias.*** and.colleagues.id.ntified.novel commens.l parabas.lid.protis.s.***,Parabas.lia_s._1653)with d.s.inct metabolic traits.includ.ng d.vers. s.ccinate excretion and.d.etary preference,which d.ives.d.fferent trans.kingd.m competition with s.ecific commens.l bacteria and.res.lts.in d.vergent s.all intes.ine(s.)immune res.ons.,highlighting the s.gnificance of d.etary interventions.as.a pivotal s.rategy for maintaining gut health(Fig.1).

关键词： immunity d.etary intes.ine