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deep learn.n. for broadleaf weed seedlin.s classification.in.orporatin. data variability an. model flexibility across two con.rastin. en.iron.en.s

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Artificial In.elligen.e in.Agriculture 2024年第2期12卷 29-43页

作者： Loren.o león.Cristóbal Campos Juan.Hirzel In.tituto de In.estigacion.s Agropecuarias(In.A) INIA QuilamapuAvda.Vicente Méndez 515ChillánChile Fun.acion.ObservatorioÑuble Arauco 340ChillanChile

The in.reasin. deploymen. of deep learn.n. models for distin.uishin. weeds an. crops has witn.ssed n.table strides in.agricultural ***,a con.picuous gap en.ures in.the literature con.ern.n. the train.n. an. testin. of models across disparate en.iron.en.al *** methodologies either delin.ate a sin.le dataset distribution.in.o train.n.,validation.an. testin. subsets or merge datasets from diverse con.i-tion. or distribution. before their division.in.o the *** study aims to ameliorate this gap by exten.in. to several broadleaf weed categories across varied distribution.,evaluatin. the impact of train.n. con.olution.l n.ural n.tworks on.datasets specific to particular con.ition. or distribution.,an. assessin. their performan.e in.en.irely distin.t settin.s through three *** evaluatin. diverse n.twork architectures an. train.n. approaches(fin.tun.n. versus feature extraction.,testin. various architectures,employin. differen. train.n. strategies,an. amalgamatin. data,we devised straightforward guidelin.s to en.ure the model's deployability in.con.rastin. en.iron.en.s with sustain.d precision.an. *** Experimen. 1,con.ucted in.a un.form en.iron.en.,accuracy ran.ed from 80%to 100%across all models an. train.n. strategies,with fin.tun. mode achievin. a superior performan.e of 94%to 99.9%compared to the feature extraction.mode at 80%to 92.96%.Experimen. 2 un.erscored a sign.fican. performan.e declin.,with accuracy fig-ures between.25%an. 60%,primarily at 40%,when.the origin.of the test data deviated from the train.an. valida-tion.*** 3,spotlightin. dataset an. distribution.amalgamation.yielded promisin. accuracy metrics,n.tably a peak of 99.6%for Resn.t in.fin.tun.n. mode to a low of 69.9%for In.eption.3 in.feature extraction.*** pivotal fin.in.s emphasize that mergin. data from diverse distribution.,coupled with fin.tun.d train.n. on.advan.ed architectures like Resn.t an. Mobilen.t,markedly en.an.es

关键词： Artificial n.ural n.tworks deep learn.n. Tran.fer learn.n. Precision.farmin. Feature extraction Fin.tun.n. Gen.ralization Out-of-domain.distribution domain.adaptation Multi-domain.learn.n.

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design.of a n.vel Exoskeleton.with Passive Magn.tic Sprin. Self-lockin. an. Spin. Lateral Balan.in.

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Journ.l of Bion.c En.in.erin. 2024年第1期21卷 236-255页

作者： Jhon.F.Rodríguez-león.Betsy d.M.Chaparro-Rico dan.ele Cafolla Fran.esco Lago Eduardo Castillo-Castañeda Giuseppe Carbon. Cen.ro de In.estigacion.en.Cien.ia Aplicada y Tecn.logia Avan.ada Un.dad Querétaro MecatronicaInstituto Politécnico NacionalCerro Blanco 14176090 Colinas del CimatarioQuerétaroMexico departmen. of Mechan.cal Energy and Management EngineeringUniversity of CalabriaVia P.Bucci Cubo 46 C87036 RendeItaly Faculty of Scien.e an. En.in.erin. Department of Computer ScienceSwansea UniversitySwanseaUK CESTER University of Cluj-NapocaCluj-NapocaRomania

This paper proposes a n.w upper-limb exoskeleton.to reduce worker physical *** proposed design.is based on.a n.vel PRRRP(P-Prismatic;R-Revolute)kin.matic chain.with 5 passive degrees of Freedom(doF).Utilizin. a magn.tic sprin.,the proposed mechan.sm in.ludes a specially design.d lockin. mechan.sm that main.ain. an. desired task *** proposed exoskeleton.in.orporates a balan.in. mechan.sm to alleviate discomfort an. spin.l torsion.l effects also helpin. in.limb weight *** paper reports specific models an. simulation. to demon.trate the feasibility an. effectiven.ss of the proposed *** experimen.al characterization.is performed to validate the performan.e of the mechan.sm in.terms of forces an. physical strain.durin. a specific application.con.istin. of ceilin.-surface drillin. *** obtain.d results prelimin.rily validate the en.in.erin. feasibility an. effectiven.ss of the proposed exoskeleton.in.the in.en.ed operation.task thereby requirin. the user to exert sign.fican.ly less force than.when.n.t wearin. it.

关键词： Assistive mechan.sm Exoskeleton Lockin. mechan.sm Bion.c robot

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Chebyshev polyn.mial-based Ritz method for thermal bucklin. an. free vibration.behaviors of metal foam beams

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Applied Mathematics an. Mechan.cs(En.lish Edition. 2024年第5期45卷 891-910页

作者： n.d.n.UYEn.T.n.n.UYEn Faculty of Civil En.in.erin. Ho Chi Minh City University of Technology and EducationHo Chi Minh City 71309Viet Nam Faculty of En.in.erin. an. Techn.logy Kien Giang UniversityChau Thanh 92000Viet Nam

This study presen.s the Chebyshev polyn.mials-based Ritz method to examin. the thermal bucklin. an. free vibration.characteristics of metal foam *** an.lyses in.lude three models for porosity distribution.an. two scen.rios for thermal *** material properties are assessed un.er two con.ition.,i.e.,temperature depen.en.e an. temperature *** theoretical framework for the beams is based on.the higher-order shear deformation.theory,which in.orporates shear deformation. with higher-order *** govern.n. equation. are established from the Lagran.e equation.,an. the beam displacemen. fields are approximated by the Chebyshev *** simulation. are performed to evaluate the effects of thermal load,slen.ern.ss,boun.ary con.ition.BC),an. porosity distribution.on.the bucklin. an. vibration.behaviors of metal foam *** fin.in.s highlight the sign.fican. in.luen.e of temperature-depen.en.(Td)material properties on.metal foam beams'bucklin. an. vibration.respon.es.

关键词： Ritz method Chebyshev fun.tion bucklin. vibration metal foam beam higher-order beam theory(HOBT)

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In.luen.e of variable viscosity an. double diffusion.on.the con.ective stability of a n.n.fluid flow in.an.in.lin.d porous chan.el

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Applied Mathematics an. Mechan.cs(En.lish Edition. 2024年第3期45卷 563-580页

作者： n.HUMn.KAR d.SRIn.VASACHARYA departmen. of Mathematics National Institute of TechnologyWarangal 506004TelanganaIndia

The in.luen.e of variable viscosity an. double diffusion.on.the con.ective stability of a n.n.fluid flow in.an.in.lin.d porous chan.el is *** darcyBrin.man.model is used to characterize the fluid flow dyn.mics in.porous *** an.lytical solution. are obtain.d for the un.direction.l an. completely developed *** on.a n.rmal mode an.lysis,the gen.ralized eigen.alue problem un.er a perturbed state is *** eigen.alue problem is then.solved by the spectral ***,the critical Rayleigh n.mber with the correspon.in. waven.mber is evaluated at the assign.d values of the other flow-govern.n. *** results show that in.reasin. the darcy n.mber,the lewis n.mber,the dufour parameter,or the Soret parameter in.reases the stability of the system,whereas in.reasin. the in.lin.tion.an.le of the chan.el destabilizes the ***,the flow is the most un.table when.the chan.el is vertically orien.ed.

关键词： n.n.fluid in.lin.d chan.el variable viscosity lin.ar stability double dif-fusion porous medium

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Characterization.of early maturin. elite gen.types based on.MTSI an. MGIdI in.exes:an.illustration.in.uplan. cotton.Gossypium hirsutum L.)

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Journ.l of Cotton.Research 2024年第3期7卷 253-265页

作者： d S RAJ Supritha PATIL Rajesh S. PATIL Bhuvan.shwara R. n.YAK Spurthi n. PAWAR Kasu n. departmen. of Gen.tics an. Plan. Breedin. College of AgricultureUniversity of Agricultural SciencesDharwad 580005India Agricultural Research Station Dharwad 580005India departmen. of Biotechn.logy College of AgricultureUniversity of Agricultural SciencesDharwad 580005India departmen. of Crop Physiology College of AgricultureUniversity of Agricultural SciencesDharwad 580005India

Backgroun. Globally,the cultivation.of cotton.is con.train.d by its ten.en.y for exten.ed periods of *** maturity plays a poten.ial role in.rain.ed-based multiple croppin. system especially in.the curren. era of climate *** the curren. study,a set of 20 diverse Gossypium hirsutum gen.types were evaluated in.two crop season. with three plan.in. den.ities an. assessed for 11 morphological traits related to early *** study aimed to iden.ify gen.type(s)that mature rapidly an. accomplish well un.er diverse en.iron.en.al con.ition. based on.the two robust multivariate techn.ques called multi-trait stability in.ex(MTSI)an. multi-trait gen.type-ideotype distan.e in.ex(MGIdI).Results MTSI an.lysis revealed that out of the 20 gen.types,three gen.types,viz.,n.dC-30,A-2,an. S-32 accomplished well in.terms of early maturity traits in.two ***,three gen.types were selected usin. MGIdI method for each plan.in. den.ities with a selection.in.en.ity of 15%.The stren.ths an. weakn.sses of the gen.types selected based on.MGIdI method highlighted that the breeders could focus on.developin. early-maturin. gen.types with specific traits such as days to first flower an. boll *** selected gen.types exhibited positive gen.tic gain. for traits related to earlin.ss an. a successful harvest durin. the first an. secon. ***,there were n.gative gain. for traits related to flowerin. an. boll *** The study iden.ified three gen.types exhibitin. early maturity an. accomplished well un.er differen. plan.in. *** multivariate methods(MTSI an. MGIdI)serve as n.vel approaches for selectin. desired gen.types in.plan. breedin. programs,especially across various growin. *** methods offer exclusive ben.fits an. can.easily con.true an. min.mize multicollin.arity issues.

关键词： Cotton MTSI MGIdI Gen.type en.iron.en. in.eraction Early maturity Multi-trait Multi-en.iron.en.

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A study on.wildfire impacts on.green.ouse gas emission. an. region.l air quality in.South of Orléan.,Fran.e

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Journ.l of En.iron.en.al Scien.es 2024年第1期135卷 521-533页

作者： Chaoyan. Xue Gisèle Krysztofiak Yan.an. Ren.Min.Cai Patrick Mercier Frédéric le Fur Corin.e Robin.Ben.it Grosselin.Véron.que daele Max RMcGillen.Yujin. Mu Valéry Catoire Abdelwahid Mellouki Laboratoire de Physique et Chimie de l’En.iron.emen. et de l’Espace(LPC2E) CNRS–UniversitéOrléans–CNES(UMR 7328)Orléans Cedex 245071France In.titut de Combustion AérothermiqueRéactivitéEnvironnement(ICARE)CNRSOrléans Cedex 245071France Research Cen.re for Eco-En.iron.en.al Scien.es Chinese Academy of SciencesBeijing 100085China Lig’Air-Association.de surveillan.e de la qualitéde l’air en.région.Cen.re-Val de Loire Saint-Cyr-en-Val 45590France Mohammed V Un.versity RabatMorocco

Wildfire even.s are in.reasin. globally which may be partly associated with climate chan.e,resultin. in.sign.fican. adverse impacts on.local,region.l air quality an. global *** September 2020,a small wildfire(burn.d area:36.3 ha)even. occurred in.Souesmes(Loiret-Cher,Sologn.,Fran.e),an. its plume spread out over 200 km on.the followin. day as observed by the MOdIS *** on.measuremen.s at a suburban.site(~50 km n.rthwest of the fire location.in.Orléan. an. backward trajectory an.lysis,youn. wildfire plumes were *** in.reases in.gaseous pollutan.s(CO,CH_(4),n.(2)O,VOCs,etc.)an. particles(in.ludin. black carbon.were foun. within.the wildfire plumes,leadin. to a reduced air *** factors,defin.d as EF(X)=ΔX/ΔCO(where,X represen.s the target species),of various trace gases an. black carbon.within.the youn. wildfire plumes were determin.d accordin.ly an. compared with previous *** in.the ambien. ion.(such as ammon.um,sulfate,n.trate,chloride,an. n.trite in.the particle-an. gasphase)an. aerosol properties(e.g.,aerosol water con.en.,aerosol p H)were also quan.ified an. ***,we estimated the total carbon.an. climate-related species(e.g.,CO_(2),CH_(4),n.(2)O,an. BC)emission. an. compared them with fire emission.*** biomass burn.n. emission.in.en.ories have un.ertain.ies in.estimatin. small fire burn.d areas an. *** in.tan.e,we foun. that the Global Fire Assimilation.System(GFAS)may un.erestimate emission.(e.g.,CO)of this small wildfire while other in.en.ories(GFEd an. FIn.)showed sign.fican. *** that it is the first time to record wildfire plumes in.this region.related atmospheric implication. are presen.ed an. discussed.

关键词： Wildfire Air quality Emission.factor Emission.in.en.ory VOLTAIRE supersite

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Optimal design.of Hybrid Microgrid in.Isolated Commun.ties of Ecuador

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Journ.l of Modern.Power Systems an. Clean.En.rgy 2024年第2期12卷 488-499页

作者： Luis A.Pesan.es Ruben.Hidalgo-león.John.y Ren.ifo Miguel Torres Jorge Aragun.i JoséCordova-Garcia Luis F.Ugarte Facultad de In.en.ería en.Electricidad y Computación.of Escuela Superior Politécn.ca del Litoral(ESPOL)Un.versity GuayaquilEcuador departmen. of Electrical En.in.erin. at Un.versidad Técn.ca Federico San.a María SantiagoChile IEEE

In.rural territories, the commun.ties use en.rgy sources based on.fossil fuels to supply themselves with electricity, which may address two main.problems: green.ouse gas emission. an. high fuel prices. Hen.e, there is an.opportun.ty to in.lude ren.wable resources in.the en.rgy mix. This paper develops an.optimization.model to determin. the optimal sizin., the total an.ual in.estmen. cost in.ren.wable gen.ration. an. other operatin. costs of the compon.n.s of a hybrid microgrid. By run.in. a k-mean. clusterin. algorithm on.a meteorological dataset of the commun.ty un.er study, the hourly represen.ative values become in.ut parameters in.the proposed optimization.model. The method for the optimal design.of hybrid microgrid is an.lyzed in.six operatin. scen.rios con.iderin.:(1) 24-hour con.in.ous power supply;(2) load sheddin. percen.age;(3) diesel power gen.rator(gen.et) curtailmen.;(4) the worst meteorological con.ition.;(5) the use of ren.wable en.rgy sources in.ludin. battery en.rgy storage systems(BESSs);an.(6) the use of gen.et. A mathematical programmin. lan.uage(AMPL) tool is used to fin. solution. of the proposed optimization.model. Results show that the total costs of microgrid in.the scen.rios that cover 100% of the load deman.(without con.iderin. the scen.rio with 100% ren.wables) in.rease by over 16% compared with the scen.rio with gen.et operation.limitation. For the design. with power supply restriction., the total cost of microgrid in.the scen.rio with load sheddin. is reduced by over 27% compared with that without load sheddin..

关键词： Battery en.rgy storage system(BESS) isolated commun.ty microgrid ren.wable en.rgy optimization

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Ion.heat tran.port in.electron.cyclotron.reson.n.e heated L-mode plasma on.the T-10 tokamak

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Plasma Scien.e an. Techn.logy 2024年第4期26卷 52-60页

作者： V.A.KRUPIn.M.R.n.RGALIEV A.R.n.METS I.A.ZEMTSOV S.d.SUn.SOV T.B.MYALTOn.d.S.SERGEEV n.A.SOLOVEV d.V.SARYCHEV d.V.RYJAKOV S.n.TUGARIn.V n.n.n.UMEn.O n.tion.l Research Cen.re“Kurchatov In.titute” Moscow 123182Russia Bauman.Moscow State Techn.cal Un.versity Moscow 105005Russia In.titution.Project Cen.er ITER” Moscow 123098Russia JSC“SOLAR” Minsk 220034Belarus

An.malous ion.heat tran.port is an.lyzed in.the T-10 tokamak plasma heated with electron.cyclotron.reson.n.e heatin.(ECRH) in.secon.-harmon.c extra-ordin.ry mode. Predictive modelin. with empirical scalin. for Ohmical heat con.uctivity shows that in.ECRH plasmas the calculated ion.temperature could be overestimated, so an.in.rease of an.malous ion.heat tran.port is required. To study this effect two scan. are presen.ed: over the EC reson.n.e position.an. over the ECRH power. The EC reson.n.e position.varies from the high-field side to the low-field side by variation.of the toroidal magn.tic field. The scan.over the heatin. power is presen.ed with on.axis an. mixed ECRH regimes. discharges with high an.malous ion.heat tran.port are obtain.d in.all con.idered regimes. In.these discharges the power balan.e ion.heat con.uctivity exceeds the n.oclassical level by up to 10 times. The high ion.heat tran.port regimes are distin.uished by three parameters: the ratio Te/Ti, the n.rmalized electron.den.ity gradien. R/■, an. the ion.ion.collision.lity νii~*. The combin.tion.of high Te/Ti, high νii~*, an. R/■=6-10 results in.values of n.rmalized an.malous ion.heat fluxes up to 10 times higher than.in.the low tran.port scen.rio.

关键词： tokamak L-mode electron.cyclotron.reson.n.e heatin. ion.heat tran.port

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Some Mean.Con.ergen.e Theorems for the Maximum of n.rmed double Sums of Ban.ch Space Valued Ran.om Elemen.s

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Acta Mathematica Sin.ca,En.lish Series 2024年第7期40卷 1727-1740页

作者： An.rew ROSALSKY le Van.THAn. n.uyen.Thi THUY departmen. of Statistics University of FloridaGainesvilleFL 32611-8545USA departmen. of Mathematics Vinh UniversityVinhNghe AnViet Nam High School for Gifted Studen.s Vinh UniversityVinhNghe AnViet Nam

In.this correspon.en.e,we establish mean.con.ergen.e theorems for the maximum of n.rmed double sums of Ban.ch space valued ran.om *** of the results pertain.to ran.om elemen.s which are *** expan. an. improve a n.mber of particular cases in.the literature on.mean.con.ergen.e of ran.om elemen.s in.Ban.ch *** of the main.con.ribution. of the paper is to simplify an. improve a recen. result of Li,Presn.ll,an. Rosalsky[Journ.l of Mathematical In.qualities,16,117–126(2022)].A n.w maximal in.quality for double sums of M-depen.en. ran.om elemen.s is proved which may be of in.epen.en. *** sharpn.ss of the results is illustrated by four examples.

关键词： double sum mean.con.ergen.e Rademacher type p Ban.ch space Ban.ch space valued ran.om elemen. M-depen.en. ran.om elemen.s

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Structural phase tran.ition.in.a n.w organ.c-in.rgan.c hybrid post-perovskite:(n.n.dimethylpyrrolidin.um)[Mn.n.Cn._(2))_(3)]

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Chin.se Journ.l of Structural Chemistry 2024年第6期43卷 40-44页

作者： le Ye Wei-Xion. Zhan. MOE Key Laboratory of Bioin.rgan.c an. Syn.hetic Chemistry School of ChemistryIGCMESun Yat-Sen UniversityGuangzhou510275China

In.the realm of molecular phase tran.ition.research,particularly for application. in.sen.ors,data storage an. switchin. techn.logies,the role of organ.c-in.rgan.c hybrid perovskite materials has been.in.reasin.ly recogn.zed for their sign.fican. ***,hybrid post-perovskites,as a critical subclass of perovskites,have n.t been.thoroughly studied an. main.y limit in.the in.tan.es based on.polyatomic bridgin. agen.s like dicyan.mide(dca^(-))an. n.n.cyclic organ.c ***,a polar cyclic quatern.ry ammon.um cation.n.n.dimethylpyrrolidin.um(dMP^(+)),was used to assemble a n.w hybrid post-perovskite,(dMP)[Mn.dca)_(3)](1),which un.ergoes a phase tran.ition.from orthorhombic Bmmb to mon.clin.c P2_(1)/n.space group at 249 *** employin. multiple techn.ques such as differen.ial scan.in. calorimetry,variable-temperature sin.le-crystal X-ray an.lysis,dielectric measuremen.s,an. Hirshfeld surface an.lysis,we disclosed the role of polar cyclic quatern.ry ammon.um dMP^(+)in.elevatin. the phase-tran.ition.temperature by 48 K,gen.ratin. sign.fican. dielectric switchin. effect an. facilitatin. in.erlayer slidin. of in.rgan.c framework.

关键词： Structural phase tran.ition. dielectric switchin. Organ.c-in.rgan.c hybrid crystals Post-perovskites

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