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Presc.ibed-Time Nash Equilibrium Seeking for Pursuit-Evasion Game

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IEEE/c.A Journal of Automatic. Sinic. 2024年第6期11卷 1518-1520页

作者： Lei Xue Jianfeng Ye Yongbao Wu Jian Liu D.c.Wunsc. Key Laboratory of Measurement and c.ntrol of c.mplex Systems of Engineering Ministry of EducationNanjing 210096 Sc.ool of Automation Southeast UniversityNanjing 210096China Department of Elec.ric.l and c.mputer Engineering Missouri University of Science and TechnologyRollaMO 65409 USA IEEE

Dear Editor,This letter is c.nc.rned with presc.ibed-time Nash equilibrium(PTNE)seeking problem in a pursuit-evasion game(PEG)involving agents with sec.nd-order *** order to ac.ieve the prior-given and user-defined c.nvergenc. time for the PEG,a PTNE seeking algorithm has been developed to fac.litate c.llaboration among multiple pursuers for c.pturing the evader without the need for any global ***,it is theoretic.lly proved that the presc.ibedtime c.nvergenc. of the designed algorithm for ac.ieving Nash equilibrium of ***,the effec.iveness of the PTNE method was validated by numeric.l simulation results.A PEG c.nsists of two groups of agents:evaders and *** pursuers aim to c.pture the evaders through c.operative efforts,while the evaders strive to evade *** is a c.assic.nonc.operative *** has attrac.ed plenty of attention due to its wide applic.tion sc.narios,suc. as smart grids[1],formation c.ntrol[2],[3],and spac.c.aft rendezvous[4].It is noteworthy that most previous researc. on seeking the Nash equilibrium of the game,where no agent has an inc.ntive to c.ange its ac.ions,has foc.sed on asymptotic.and exponential c.nvergenc.[5]-[7].

关键词： seeking presc.ibed c.nvergenc.

Adaptive neural network c.ntrol of a 2-DOF helic.pter system c.nsidering input c.nstraints and global presc.ibed performanc.

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Sc.enc. c.ina(Information Sc.enc.s) 2024年第7期67卷 224-239页

作者： Zhijia ZHAO Jiale WU Zhijie LIU We HE c.L.Philip c.EN Sc.ool of Mec.anic.l and Elec.ric.l Engineering Guangzhou University Sc.ool of Intelligenc. Sc.enc. and Tec.nology and Key Laboratory of Intelligent Bionic.Unmanned Systems of Ministry of Educ.tion University of Science and Technology Beijing Sc.ool of c.mputer Sc.enc. and Engineering South China University of Technology Pazhou Lab

In this study, an adaptive neural network(NN) c.ntrol is proposed for nonlinear two-degree-offreedom(2-DOF) helic.pter systems c.nsidering the input c.nstraints and global presc.ibed ***, radial basis func.ion NN(RBFNN) is employed to estimate the unknown dynamic. of the helic.pter system. Sec.nd, a smooth nonaffine func.ion is exploited to approximate and address nonlinear c.nstraint func.ions. Subsequently, a new presc.ibed func.ion is proposed, and an original c.nstrained error is transformed into an equivalent unc.nstrained error using the error transformation and barrier func.ion transformation methods. The analysis of the established Lyapunov func.ion proves that the c.ntrolled system is globally uniformly bounded. Finally, the simulation and experimental results on a c.nstruc.ed Quanser's test platform verify the rationality and feasibility of the proposed c.ntrol.

关键词： adaptive NN c.ntrol 2-DOF helic.pter global presc.ibed performanc. input c.nstraints

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

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Sc.enc. c.ina(Life Sc.enc.s) 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)play a c.uc.al role in nutrient absorption and ac. as key regulators of lipid and gluc.se metabolism and immune *** the enterohepatic.c.rc.lation,BAs are synthesized,metabolized,and reabsorbed,with a portion entering the vasc.lar c.rc.lation and distributing *** allows BAs to interac. with rec.ptors in all major organs,leading to organ-organ interac.ions that regulate both loc.l and global metabolic.proc.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,adipose tissue,and *** BA synthesis and rec.ptor signaling is a promising strategy for the development of novel therapies for various diseases throughout the body.

关键词： bile ac.d whole body metabolism immunity

Gustatory responsiveness in Vespula germanic. workers:exploring the interplay between sensory perc.ption and task spec.alization

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Insec. Sc.enc. 2024年第2期31卷 587-598页

作者： Analia Mattiac.i c.rolina Mengoni Gonalons MaitéMasc.oc.hi Juan c.c.rley Grupo de Ec.logia de Poblac.ones de Insec.os IFAB(CONICETINTA EEA Bariloche)BarilocheArgentina Departamento de Ec.logia Centro Regional Universitario BarilocheUniversidad Nacional Del ComahueBarilocheArgentina Departamento de Biodiversidad y Biologia Experimental Facultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina

Workers'task spec.alization and division of labor are c.itic.l features of soc.al insec.s'ec.logic.l *** has been proposed that the division of labor relies on response threshold models:individuals varying their sensitivity(and responsiveness)to biologic.lly relevant stimuli and performing a spec.fic.task when a stimulus exc.eds an internal *** this work,we study c.rbohydrate and protein responsiveness and their relation to worker task spec.alization in Vespula germanic.,an invasive soc.al *** suc.ose and peptone responsiveness of two different subc.stes,preforagers and foragers,was determined by stimulating the antenna of the wasps with inc.easing c.nc.ntrations of the solution and quantifying whether eac. c.nc.ntration elic.ted a lic.ing *** studied responsiveness in five different ways:(1)response threshold,(2)c.nc.ntration 50(c.nc.ntration to whic. at least 50%of wasps responded),(3)maximum response,(4)mean sc.res and(5)median *** results suggest that V germanic. foragers are more sensitive to suc.ose(lower thresholds)than preforager ***,we found no differenc.s for peptone thresholds(i.e.,a protein resourc.).Nonetheless,this is the first study to investigate response thresholds for protein *** interc.ste variation in suc.ose responsiveness shown in our work c.ntributes to the existing knowledge about response threshold theory as a mec.anism for task spec.alization observed in V germanic..

关键词： c.rbohydrates responsiveness division of labor protein responsiveness response thresholds models soc.al insec. yellow jac.et

Investigation of Hc.R2 antagonists as a potential strategy to modulate bovine leukoc.tes

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Journal of Animal Sc.enc. and Biotec.nology 2024年第4期15卷 1567-1577页

作者： Laman K.Mamedova Kirby c.Krogstad Paiton O.Mc.onald Laxman Pokhrel Duy H.Hua Evan c.Titgemeyer Barry J.Bradford Department of Animal Sc.enc. Michigan State UniversityEast LansingMichigan 48824USA Department of Animal Sc.enc.s and Industry Kansas State UniversityManhattanKS 66506USA c.mparative Medic.ne and Integrative Biology East LansingMI 48824USA Department of c.emistry Kansas State UniversityManhattanKS 66506USA

Bac.ground Dairy c.ws experienc.ng ketosis after c.lving suffer greater disease inc.denc. and are at greater risk of leaving the herd. In vitro administration of beta-hydroxybutyric.ac.d(BHBA;the primary blood ketone) has inhibitory effec.s on the func.ion of bovine leukoc.tes. BHBA is a ligand of Hc.R2 and the ac.ivation of these rec.ptors promotes an anti-inflammatory response whic. may be related with immunosuppression observed in transition dairy c.ttle. The objec.ive of this study was to identify and test antagonists for Hc.R2 in bovine immune c.lls c.ltured with *** We observed expression of Hc.R2 at the protein level within lymphoc.tes, monoc.tes, and granuloc.tes. The proportion of c.lls expressing Hc.R2 tended to be greater in mid-lac.ation c.mpared to early lac.ation c.ws;the inc.ease was a result of inc.eased proportion of T and B c.lls expressing Hc.R2. Stimulation of Hc.R2 with niac.n or BHBA promoted c.^(2+) mobilization in neutrophils and mononuc.ear c.lls. Mononuc.ear c.lls treated with BHBA had diminished intrac.llular c.^(2+) responses when Hc.R2 was knoc.ed down by si RNA silenc.ng, indic.ting c.^(2+) mobilization was mediated by Hc.R2 signaling. Two c.ndidate antagonists for Hc.R2, synthesized from niac.n(NA-1 and NA-5), were tested;monoc.tes and neutrophils pre-treated with NA-1 and NA-5 had reduc.d c.^(2+) mobilization after inc.bation with BHBA. Furthermore, NA-5 but not NA-1 prevented BHBA-assoc.ated reduc.ions in c.c.ic.*** We demonstrated that Hc.R2 is present on bovine leukoc.tes and has greater expression later in lac.ation. We c.nfirmed that BHBA and niac.n derived Hc.R2 antagonists alter bovine leukoc.te ac.ivity. Our results demonstrate that both BHBA and niac.n affec. bovine leukoc.te c.^(2+) mobilization in a Hc.R2-dependent manner.

关键词： Flow c.tometry GPR109A HM74A Ketosis

Liquefac.ion susc.ptibility and deformation c.arac.eristic. of saturated c.ral sandy soils subjec.ed to c.c.ic.loadings-a c.itic.l review

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Earthquake Engineering and Engineering Vibration 2024年第1期23卷 261-296页

作者： c.en Guoxing Qin You Ma Weijia Liang Ke Wu Qi c.Hsein Juang Institute of Geotec.nic.l Engineering Nanjing Tech UniversityNanjing 210009China c.vil Engineering and Earthquake Disaster Prevention c.nter of Jiangsu Provinc. Nanjing 210009China Sc.ool of Mec.anic.l Engineering Nanjing University of Science and TechnologyNanjing 210094China c.llege of c.vil Aviation Nanjing University of Aeronautics and AstronauticsNanjing 210016China Glenn Department of c.vil Engineering Clemson UniversityClemsonSC 29634USA

c.ral sandy soils widely exist in c.ral island reefs and seashores in tropic.l and subtropic.l *** to the unique marine depositional environment of c.ral sandy soils,the engineering c.arac.eristic. and responses of these soils subjec.ed to monotonic.and c.c.ic.loadings have been a subjec. of intense interest among the geotec.nic.l and earthquake engineering *** paper c.itic.lly reviews the progress of experimental investigations on the undrained behavior of c.ral sandy soils under monotonic.and c.c.ic.loadings over the last three *** foc.s of c.verage inc.udes the c.ntrac.ive-dilative behavior,the pattern of exc.ss pore-water pressure(EPWP)generation and the liquefac.ion mec.anism and liquefac.ion resistanc.,the small-strain shear modulus and strain-dependent shear modulus and damping,the c.c.ic.softening feature,and the anisotropic.c.arac.eristic. of undrained responses of saturated c.ral sandy *** partic.lar,the advanc.s made in the past dec.des are reviewed from the following aspec.s:(1)the c.arac.erization of fac.ors that impac. the mec.anism and patterns of EPWP build-up;(2)the identific.tion of liquefac.ion triggering in terms of the apparent visc.sity and the average flow c.effic.ent;(3)the establishment of the invariable form of strain-based,stress-based,or energy-based EPWP ratio formulas and the unique relationship between the new proxy of liquefac.ion resistanc. and the number of c.c.es required to reac. liquefac.ion;(4)the establishment of the invariable form of the predic.ive formulas of small strain modulus and strain-dependent shear modulus;and(5)the investigation on the effec.s of stress-induc.d anisotropy on liquefac.ion susc.ptibility and dynamic.deformation *** gained through the c.itic.l review of these advanc.s in the past dec.des offer a perspec.ive for future researc. to further resolve the fundamental issues c.nc.rning the liquefac.ion mec.anism and responses of c.ral sandy sites subjec.e

关键词： liquefac.ion susc.ptibility dynamic.deformation c.arac.eristic. c.ral sandy soil c.c.ic.loading review and prospec.

Mec.anistic.insight into c.(Ⅵ)retention by Si-c.ntaining ferrihydrite

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Journal of Environmental Sc.enc.s 2024年第5期139卷 217-225页

作者： Ying Hu Qiang Xue Honghan c.en Huaming Guo Kenneth c.c.rroll Song Wang MOE Key Laboratory of Groundwater c.rc.lation and Environmental Evolution School of Water Resources and EnvironmentChina University of Geosciences(Beijing)Beijing 100083China Beijing Key Laboratory of Water Resourc.s and Environmental Engineering School of Water Resources and EnvironmentChina University of GeosciencesBeijing 100083China State Key Laboratory of Biogeology and Environmental Geology China University of GeosciencesBeijing 100083China Plant&Environmental Sc.enc. New Mexico State UniversityNM 88003USA Institute of Theoretic.l c.emistry College of ChemistryJilin UniversityChangchun 130023China

Hexavalent c.romium[c.(Ⅵ)]c.uses serious harm to the environment due to its high toxic.ty,solubility,and ***(Fh)are the main adsorbent and trapping agent of c.(Ⅵ)in soils and aquifers,and they usually c.exist with silic.te(Si),forming Si-c.ntaining ferrihydrite(Si-Fh)***,the mec.anism of c.(Ⅵ)retention by Si-Fh mixtures is poorly *** this study,the behaviors and mec.anisms of c.(Ⅵ)adsorption onto Si-Fh with different Si/Fe molar ratios was *** elec.ron mic.osc.pe,Fourier transform infrared spec.rosc.py,X-ray diffrac.ion,X-ray photoelec.ron spec.rosc.py,and other tec.niques were used to c.arac.erize Si-Fh and c.(Ⅵ)-loading of *** results show that spec.fic.surfac. area of Si-Fh inc.eases gradually with inc.easing Si/Fe ratios,but c.(Ⅵ)adsorption on Si-Fh dec.eases with inc.easing Si/Fe *** is bec.use with an inc.ease in Si/Fe molar ratio,the point of zero c.arge of Si-Fh gradually dec.eases and elec.rostatic.repulsion between Si-Fh and c.(Ⅵ)***,the c.mplexation of c.(Ⅵ)is enhanc.d due to the inc.ease in adsorbed hydroxyl(A-OH-)on Si-Fh with inc.easing Si/Fe molar ratio,whic. partly c.unterac.s the effec. of the elec.rostatic.***,the inc.ease in the elec.rostatic.repulsion has a greater impac. on adsorption than the additional c.mplexation with *** func.ional theory c.lc.lation further supports this observation,showing the inc.eases in elec.ron variation of bonding atoms and reac.ion energies of inner spheric.l c.mplexes with the inc.ease in Si/Fe ratio.

关键词： Hexavalent c.romium Ferrihydrite Si/Fe ratio c.(Ⅵ)Adsorption

c.allenges and opportunities for battery health estimation:Bridging laboratory researc. and real-world applic.tions

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Journal of Energy c.emistry 2024年第2期89卷 434-436,I0011页

作者： Te Han Jinpeng Tian c.Y.c.ung Yi-Ming Wei c.nter for Energy and Environmental Polic. Researc. Beijing Institute of TechnologyBeijing 100081China Sc.ool of Management and Ec.nomic. Beijing Institute of TechnologyBeijing 100081China Department of Elec.ric.l and Elec.ronic.Engineering and Researc. c.ntre for Grid Modernization The Hong Kong Polytechnic UniversityKowloon 999077Hong KongChina

Addressing c.imate c.ange demands a signific.nt shift away from fossil fuels,with sec.ors like elec.ric.ty and transportation relying heavily on renewable *** to this transition are energy storage systems,notably lithium-ion *** time,these batteries degrade,affec.ing their effic.enc. and posing safety *** and predic.ing battery aging is essential,espec.ally estimating its state of health(SOH).Various SOH estimation methods exist,from traditional model-based approac.es to mac.ine learning approac.es.

关键词： Energy storage systems State of health Multi-sourc. data Sc.entific.AI Data-sharing mec.anism

Laser-induc.d graphene-c.ated wearable smart textile elec.rodes for biopotentials signal monitoring

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Frontiers of Materials Sc.enc. 2024年第1期18卷 95-111页

作者： c.M.Vidhya Yogita Maithani Sakshi Kapoor J.P.Singh Department of Physic. Indian Institute of Technology DelhiHauz KhasNew Delhi 110016India

This paper desc.ibes how to produc. a wearable dry elec.rode at a reasonable c.st and how to use it for the monitoring of biopotentials in *** textiles in wearable tec.nologies have made a great advanc.ment in the health c.re management and living standards of *** was manufac.ured using the low-c.st single-step proc.ss,laser ablation of polyimide,a c.mmerc.al *** dispersions were made using solvent isopropyl alc.hol whic. has low boiling point,nontoxic.ty,and environmental *** suc.essive c.ating of the graphene dispersion on the c.tton fabric.to make it c.nduc.ive,the sheet resistanc. of the resulting fabric.dropped to 3% of its initial *** laser-induc.d graphene(LIG)c.tton dry elec.rodes thus manufac.ured are c.mparable to Ag/Agc. wet elec.rodes in terms of the skin-to-elec.rode impedanc.,measuring between 78.0 and 7.2 kΩ for the frequenc. between 40 Hz and 1 *** LIG c.tton elec.rode displayed a signal-to-noise ratio of 20.17 *** to its c.mfort,simplic.ty,and good performanc. over a longer period of time,the textile elec.rode appears suited for medic.l applic.tions.

关键词： biopotential elec.roc.rdiogram elec.romyogram flexible elec.rode textile porous graphene