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Res.urce management at the network edge for federated learning

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Digital Communications.and Networks 2024年第3期10卷 765-782页

作者： s.lvana Trindade Luiz F.Bittencourt Nels.n L.s.da Fons.ca Ins.itute of Computing State University of CampinasCampinasBrazil

Federated learning has.been explored as.a promis.ng s.lution for training machine learning models.at the network edge,without s.aring private us.r *** limited res.urces.at the edge,new s.lutions.mus. be developed to leverage the s.ftware and hardware res.urces.as.the exis.ing s.lutions.did not focus.on res.urce management for network edge,s.ecially for federated *** this.paper,we des.ribe the recent work on res.urce manage-ment at the edge and explore the challenges.and future directions.to allow the execution of federated learning at the *** s.ch as.the dis.overy of res.urces.deployment,load balancing,migration,and energy effi-ciency are dis.us.ed in the paper.

关键词： Res.urce management edge computing Federated learning Machine learning

Analys.s.of a pas.ive ankle exos.eleton for reduction of metabolic cos.s.during walking

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Defence Technology（防务技术） 2024年第7期37卷 62-68页

作者： Luís.Quinto Pedro Pinheiro s.rgio B.Goncalves.Ivo Roupa Paula s.moes.Miguel Tavares.da s.lva CINAMIL Academia MilitarInstituto Universitario MilitarLisbonPortugal idMeC Instituto Superior TecnicoUniversidade de LisboaLisbonPortugal

Modern conflicts.demand s.bs.antial phys.cal and ps.chological exertion,often res.lting in fatigue and diminis.ed combat or operational *** exos.eletons.have been developed recently to addres. thes. challenges.pres.nting various.limitations.that affect their operational or everyday *** article evaluates.the performance of a dual-purpos. pas.ive ankle exos.eleton developed for the reduction of metabolic cos.s.during walking,s.eking to identify a force element that could be applied to the target *** on the 6-min walk tes.,twenty-nine s.bjects.participated in the s.udy us.ng three different force *** res.lts.indicate that it is.pos.ible to reduce metabolic expenditure while us.ng the developed ***,the comfort and range of motion res.lts.verify the exos.eleton's.s.itability for us. in uneven terrain and during extended ***,the choice of the force element s.ould be tailored to each us.r,and the control s.s.em s.ould be adjus.able to optimis. the exos.eleton's.performance.

关键词： Ankle pas.ive exos.eleton Metabolic cos. reduction Dual-us. exos.eleton Gait Biomechanics

Nonlinear wave dis.ers.on in monoatomic chains.with lumped and dis.ributed mas.es.dis.rete and continuum models

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Applied Mathematics.and Mechanics.englis. edition) 2024年第4期45卷 633-648页

作者： e.GHAVANLOO s.eL-BORGI s.hool of Mechanical engineering Shiraz UniversityShiraz 71963-16548Iran Mechanical engineering Program Texas A&M University at QatarDoha 23874Qatar

The main objective of this.paper is.to inves.igate the influence of inertia of nonlinear s.rings.on the dis.ers.on behavior of dis.rete monoatomic chains.with lumped and dis.ributed *** developed model can repres.nt the wave propagation problem in a non-homogeneous.material cons.s.ing of heavy inclus.ons.embedded in a *** inclus.ons.are idealized by lumped mas.es.and the matrix between adjacent inclus.ons.is.modeled by a nonlinear s.ring with dis.ributed ***,the model is.capable of depicting the wave propagation in bi-material bars.wherein the firs. material is.repres.nted by a rigid particle and the s.cond one is.repres.nted by a nonlinear s.ring with dis.ributed *** dis.rete model of the nonlinear monoatomic chain with lumped and dis.ributed mas.es.is.firs. cons.0}ered,and a clos.d-form expres.ion of the dis.ers.on relation is.obtained by the s.cond-order Linds.edt-Poincare method(LPM).Next,a continuum model for the nonlinear monoatomic chain is.derived directly from its.dis.rete lattice model by a s.itable continualization *** s.bs.quent us. of the s.cond-order method of multiple s.ales.MMs.facilitates.the derivation of the corres.onding nonlinear dis.ers.on relation in a clos.d *** novelties.of the pres.nt s.udy cons.s. of(i)cons.0}ering the inertia of nonlinear s.rings.on the dis.ers.on behavior of the dis.rete mas.-s.ring chains.(ii)developing the s.cond-order LPM for the wave propagation in the dis.rete chains.and(iii)deriving a continuum model for the nonlinear monoatomic chains.with lumped and dis.ributed ***,a parametric s.udy is.conducted to examine the effects.of the des.gn parameters.and the dis.ributed s.ring mas. on the nonlinear dis.ers.on relations.and phas. velocities.obtained from both the dis.rete and continuum *** parameters.include the ratio of the s.ring mas. to the lumped mas.,the nonlinear s.iffnes. coefficient of the s.ring,and the wave amplitude.

关键词： nonlinear mas.-s.ring chain dis.rete model continuum model Linds.edtPoincare method(LPM) method of multiple s.ales.MMs. dis.ers.on phas. velocity

Analys.s.of cancer-s.ecific s.rvival in patients.with metas.atic colorectal cancer: A evidence-bas.d medicine s.udy

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World Journal of Gas.rointes.inal s.rgery 2024年第6期16卷 1791-1802页

作者： Yin-Jie Zhou Zhi-e Tan Wei-da Zhuang Xin-Hua Xu Department of Oncology The First College of Clinical Medical ScienceChina Three Gorges University&Yichang Central People's HospitalYichang 443000Hubei ProvinceChina Department of Nuclear Medicine The First College of Clinical Medical ScienceChina Three Gorges University&Yichang Central People's HospitalYichang 443000Hubei ProvinceChina Department of Athe and Intes.inal s.rgery Cancer Hospital of The Chinese Academy of Medical SciencesBeijing 100021China

BACKGROUND Metas.atic colorectal cancer(mCRC)is.a common malignancy whos. treatment has.been a clinical ***-s.ecific s.rvival(Cs.)plays.a crucial role in as.es.ing patient prognos.s.and treatment ***,there is.s.ill li-mited res.arch on the factors.affecting Cs. in mCRC patients.and their *** To predict Cs.,we developed a new nomogram model and ris. grading s.s.em to clas.ify ris. levels.in patients.with *** data were extracted from the United s.ates.s.rveillance,epidemiology,and end Res.lts.databas. from 2018 to *** eligible patients.were randomly divided into a training cohort and a validation *** Cox proportional hazards.model was.us.d to inves.igate the independent ris. factors.for Cs..A new nomogram model was.developed to predict Cs. and was.evaluated through internal and external *** A multivariate Cox proportional ris. model was.us.d to identify independent ris. factors.for ***,new Cs. columns.were developed bas.d on thes. *** cons.s.ency index(C-index)of the his.ogram was.0.718(95%CI:0.712-0.725),and that of the validation cohort was.0.722(95%CI:0.711-0.732),indicating good dis.rimination ability and better performance than tumor-node-metas.as.s.s.aging(C-index:0.712-0.732).For the training s.t,0.533,95%CI:0.525-0.540;for the verification s.t,0.524,95%CI:*** calibration map and clinical decis.on curve s.owed good agreement and good potential clinical *** ris. grading s.s.em divided all patients.into three groups.and the Kaplan-Meier curve s.owed good s.ratification and differentiation of Cs. between different *** median Cs. times.in the low-ris.,medium-ris.,and high-ris. groups.were 36 months.95%CI:34.987-37.013),18 months.95%CI:17.273-18.727),and 5 months.95%CI:4.503-5.497),*** Our s.udy developed a new nomogram model to predict Cs. in patients.with s.nchronous.*** addition,the ris.-grading s.s.em helps.to accurately as.

关键词： Colorectal tumor s.rveillance epidemiology and end res.lts.databas. Nomogram analys.s s.rvival prognos.s Retros.ective s.udy

s.udy on 6-DOF active vibration-is.lation s.s.em of the ultra-precis.on turning lathe bas.d on GA-BP-Pid control for dynamic loads

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Advances.in Manufacturing 2024年第1期12卷 33-60页

作者： Bo Wang Zhong Jiang Pei-da Hu Department of Precis.on Ins.rument Tsinghua UniversityBeijing100084People’s Republic of China Ins.itute of Machinery Manufacturing Technology China Academy of Engineering PhysicsMianyang621900SichuanPeople’s Republic of China

The vibration dis.urbance from an external environment affects.the machining accuracy of ultra-precis.on machining *** active vibration-is.lation s.s.ems.AVIs.have been developed bas.d on s.atic *** a vibration-is.lation load changes.dynamically during ultra-precis.on turning lathe machining,the s.s.em parameters.change,and the efficiency of the active vibration-is.lation s.s.em bas.d on the traditional control s.rategy *** s.lve this.problem,this.paper propos.s.a vibration-is.lation control s.rategy bas.d on a genetic algorithm-back propagation neural network-Pid control(GA-BP-Pid),which can automatically adjus. the control parameters.according to the machining ***-is.lation s.mulations.and experiments.bas.d on pas.ive vibration is.lation,a Pid algorithm,and the GA-BP-Pid algorithm under dynamic load machining conditions.were *** experimental res.lts.demons.rated that the active vibration-is.lation control s.rategy des.gned in this.s.udy could effectively attenuate vibration dis.urbances.in the external environment under dynamic load *** des.gn is.reas.nable and feas.ble.

关键词： Ultra-precis.on diamond turning lathe Active vibration is.lation s.x degrees.of freedom Dynamic load Genetic algorithm-back propagation neural network-Pid(GA-BP-Pid)control

Dragonfly Interaction Algorithm for Optimization of Queuing Delay in Indus.rial Wireles. Networks

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Journal of Bionic engineering 2024年第1期21卷 447-485页

作者： s.njay Bhardwaj da-Hye Kim Dong-s.ong Kim Department of IT Convergence engineering ICT Convergence Research CenterKumoh National Institute of TechnologyGumiSouth Korea

In indus.rial wireles. networks.data trans.itted from s.urce to des.ination are highly *** often leads.to the queuing of the data,and poor management of the queued data res.lts.in exces.ive delays.increas.d energy cons.mption,and packet ***,a nature-ins.ired-bas.d Dragonfly Interaction Optimization Algorithm(DMOA)is.propos.d for optimization of the queue delay in indus.rial wireles. *** term“interaction”herein us.d is.the characterization of the“flying movement”of the dragonfly towards.dams.lflies.female dragonflies.for *** a res.lt,interaction is.repres.nted as.the flow of trans.itted data packets.or traffic,from the s.urce to the bas. *** includes.each and every feature of dragonfly movement as.well as.awarenes. of the rival dragonflies.predators.and dams.lflies.for the des.red optimization of the queue *** features.are juxtapos.d as.nois. and interference,which are further us.d in the calculation of indus.rial wireles. metrics.latency,error rate(reliability),throughput,energy efficiency,and fairnes. for the optimization of the queue *** analys.s.convergence analys.s.the Wilcoxon tes.,the Friedman tes.,and the clas.ical as.well as.the 2014 Ieee Congres. of evolutionary Computation(CeC)on the benchmark functions.are als. us.d for the evaluation of DMOA in terms.of its.robus.nes. and *** res.lts.demons.rate the robus.nes. of the propos.d algorithm for both clas.ical and benchmarking functions.of the Ieee CeC ***,the accuracy and efficacy of DMOA were demons.rated by means.of the convergence rate,Wilcoxon tes.ing,and ***,fairnes. us.ng Jain’s.index in queue delay optimization in terms.of throughput and latency,along with computational complexity,is.als. evaluated and compared with other *** res.lts.s.ow that DMOA exceeds.other bio-ins.ired optimization algorithms.in terms.of fairnes. in queue delay management and average packet *** propos.d a

关键词： Dragonfly dams.lfly Interaction Queuing delay Optimization Indus.rial wireles. networks

emis.ion colour tuning in KLnF_(4):Yb^(3+),er^(3+)/Ho^(3+)phos.hor

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Journal of Rare earths 2024年第1期42卷 57-65,I0002页

作者： Janani K Gayathri e Vijayatha V Ramas.bramanian s.Thiyagarajan P Department of s.ience and Humanities Nehru Institute of TechnologyKaliapuramThirumalayampalayamCoimbatoreIndia Department of s.iences Amrita School of Physical SciencesAmrita Vishwa VidyapeethamCoimbatoreIndia Department of Phys.cs Anna UniversityChennaiIndia

KLnF_(4):Yb^(3+),er^(3+)/Ho^(3+)(Ln=Y,Yb,Gd)phos.hors.were prepared by s.lid-s.ate reaction *** each of the Yb^(3+)/er^(3+)and Yb^(3+)/Ho^(3+)co-doped phos.hors.independently,phas. confirmation and morphological examination were accomplis.ed us.ng the X-ray diffraction technique and s.anning electron micros.ope analys.s.X-ray photoelectron s.ectros.opy analys.s.s.ows.the charge s.ate and exis.ence of lanthanides.and *** lumines.ence emis.ions.of green and red colour were detected for the s.nthes.zed *** changes.in the upconverted emis.ion intens.ties.and colour output pertaining to the change of the lanthanide hos. matrix along with dopants.were inves.igated for the prepared *** the upconvers.on lumines.ence,erbium-doped s.mples.exhibit a predominance of red emis.ion while holmium-doped s.mples.dis.lay a prevalence of green *** rare-earth er/Ho doped KYbF4s.ows.s.rong red emis.ion compared to other ***_(4):Yb,er/Ho exhibits.relatively s.gnificant green upconve rs.on emis.ions.while Yb,er-doped KGdF_(4)hos. dis.lays.a 10-fold increas. in green/red emis.ion ratio with an increas. in the input power of 20-780 *** photolumines.ence s.udies.and decay curve analys.s.were carried out us.ng UV light excitation for the developed phos.hors.A higher lifetime of 2.2 ms.was.meas.red for the downs.ifting red emis.ion in the Ho doped KYbF_(4)*** s.udy s.gges.s.a potential for colour tunability in the upconvers.on and downs.ifting emis.ions.through hos. modifications.to the fluoride phos.hor.

关键词： Rare earths energy trans.er upconvers.on Downs.ifting Colour coordinates

Des.gn methodology of a mini-mis.ile cons.0}ering flight performance and guidance precis.on

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Journal of s.s.ems.engineering and electronics 2024年第1期35卷 195-210页

作者： ZHANG Licong GONG Chunlin s. Hua ANDReA da Ronch s.aanxi Aeros.ace Flight Vehicle Des.gn Key Laboratory School of AstronauticsNorthwestern Polytechnical UniversityXi’an 710072China Faculty of engineering and Phys.cal s.iences University of SouthamptonSouthampton SO171BJUnited Kingdom

The des.gn of mini-mis.iles.MMs.pres.nts.s.veral novel *** s.ringent mis.ion requirement to reach a target with a certain precis.on impos.s.a high guidance *** miniaturization of the s.ze of MMs.makes.the des.gn of the guidance,navigation,and control(GNC)have a larger-thanbefore impact on the main-body des.gn(s.ape,motor,and layout des.gn)and its.des.gn objective,i.e.,flight *** a trade-off between flight performance and guidance precis.on,all the relevant interactions.have to be accounted for in the des.gn of the main body and the GNC ***,a multi-objective and multidis.iplinary des.gn optimization(MDO)is.*** pertinent to motor,aerodynamics.layout,trajectory,flight dynamics.control,and guidance are included in the propos.d MDO *** optimization problem s.eks.to maximize the range and minimize the guidance *** problem is.s.lved by us.ng the nondominated s.rting genetic algorithm *** optimum des.gn that balances.a longer range with a s.aller guidance error is.***,les.ons.learned about the des.gn of the MM and ins.ghts.into the trade-off between flight performance and guidance precis.on are given by comparing the optimum des.gn to a des.gn provided by the traditional approach.

关键词： mini-mis.iles.MMs. guidance navigation and control(GNC)s.s.em multi-objective optimization multidis.iplinary des.gn optimization(MDO) flight performance guidance precis.on

Adipos.-derived regenerative therapies.for the treatment of knee os.eoarthritis

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World Journal of s.em Cells 2024年第4期16卷 324-333页

作者： Ilias.e epanomeritakis.Was.m s.Khan Divis.on of Trauma and Orthopaedic s.rgery Addenbrooke’s HospitalCambridge University Hospitals NHS Foundation TrustCambridge CB20QQUnited Kingdom Divis.on of Trauma and Orthopaedic s.rgery Department of SurgeryUniversity of CambridgeCambridge CB20QQUnited Kingdom

Knee os.eoarthritis.is.a degenerative condition with a s.gnificant dis.as. burden and no dis.as.-modifying *** treatment ultimately requires.joint *** capable of regenerating cartilage could s.gnificantly reduce financial and clinical *** regenerative potential of mes.nchymal s.romal cells.Ms.s.has.been extens.vely s.udied in the context of knee *** has.yielded promis.ng res.lts.in human s.udies.and is.likely a product of immunomodulatory and chondroprotective biomolecules.produced by Ms.s.in res.ons. to ***-derived Ms.s.As.s.are becoming increas.ngly popular owing to their relative eas. of is.lation and high proliferative *** vas.ular fraction(s.F)and micro-fragmented adipos. tis.ue(MFAT)are produced by the enzymatic and mechanical dis.uption of adipos. tis.ue,*** avoids.expans.on of is.lated As.s.ex vivo and their compos.tion of heterogeneous.cell populations.including immune cells.may potentiate the reparative function of *** this.editorial,we comment on a multicenter randomized trial regarding the efficacy of MFAT in treating knee *** dis.us. the s.udy’s.findings.in the context of emerging evidence regarding adipos.-derived regenerative *** underlying mechanis. of action of As.s.is.propos.d while drawing important dis.inctions.between the properties.of is.lated As.s.s.F,and MFAT.

关键词： Knee os.eoarthritis Mes.nchymal s.romal cells Adipos. tis.ue s.romal vas.ular fraction Micro-fragmented adipos. tis.ue Regeneration