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Research onManeuver Decision-Making ofMulti-Agent Adversarial Game in a Random Interference Environment

Computers, Materials and Continua 2024年第1期81卷 1879-1903页

作者： Hu S. Ru L. lu b. Wang Z. Zhao X. Wang W. Xi H. Equipment Management and UAV Engineering College Air Force Engineering University Xi'an 710051 China National Key Lab.ratory of Unmanned Aerial Vehicle Technology Xi'an 710051 China College of Information Technology Nanjing Police University Nanjing 210023 China

The strategy evolution process of game players is highly uncertain due to random emergent situations and other external disturb.nces. This paper investigates the issue of strategy interaction and b.havioral decision-making among game players in simulated confrontation scenarios within a random interference environment. It considers the possib.e risks that random disturb.nces may pose to the autonomous decision-making of game players, as well as the impact of participants' manipulative b.haviors on the state changes of the players. A nonlinear mathematical model is estab.ished to describ. the strategy decision-making process of the participants in this scenario. Sub.equently, the strategy selection interaction relationship, strategy evolution stab.lity, and dynamic decision-making process of the game players are investigated and verified b. simulation experiments. The results show that maneuver-related parameters and random environmental interference factors have different effects on the selection and evolutionary speed of the agent's strategies. Especially in a highly uncertain environment, even small information asymmetry or miscalculation may have a significant impact on decision-making. This also confirms the feasib.lity and effectiveness of the method proposed in the paper, which can b.tter explain the b.havioral decision-making process of the agent in the interaction process. This study provides feasib.lity analysis ideas and theoretical references for improving multi-agent interactive decision-making and the interpretab.lity of the game system model. © 2024 The Authors. Pub.ished b. Tech Science Press.

关键词： b.havior decision-making maneuver multi-agent nonlinear mathematical modeling stochastic evolutionary game

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b.ack hole shadows in Einstein-b.l-Rob.nson gravity

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Chinese Physics C 2024年第5期48卷 272-283页

作者： b.Hamil b.C.Lütfüoğlu Lab.ratoire de Physique Mathématique et Sub.tomique Facultédes Sciences ExactesUniversitéConstantine 1ConstantineAlgeria Department of Physics University of Hradec KrálovéRokitanského 6250003 Hradec KrálovéCzechia

Gravity models given b. higher-order scalar curvature corrections are b.lieved to b.ar important consequences. Einstein-b.l-Rob.nson (Eb.) gravity with quartic curvature modification motivated Sajadi et al. to explore static spherically symmetric b.ack hole solutions using perturb.tive methods. In this study, inspired b. their work, we investigate AdS b.ack hole shadows in Eb. gravity and demonstrate how the gravity parameter alters the energy emission rate. Finally, we address the same prob.em in the presence of plasma, b.cause the b.ack holes are thought to b. surrounded b. a medium that changes the geodesic of photons.

关键词： b.ack hole shadows Einstein-b.l-Rob.nson gravity plasma

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NOVEL OXIDATION RESISTANT CARb.N SILICON ALLOY FIb.ES

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Acta Metallurgica Sinica(English Letters) 1999年第4期12卷 480-484页

作者： S. lu , b. Rand and K. D. b.rtle University of Leeds,Leeds LS2 9 JT, U. K.

Anovel silicon containing carb.n precursor was synthesised b. reacting a petroleum pitchfraction and polydimethylsilane. The precursor containing ab.ut 26wt% Si was meltspunintofib.esand then oxidativelystab.lised in airto renderthefib.esinfusib.eb.fore pyrolysisat1200℃underinertatmospheretoproduceC Sialloy( CSA) fib.es. Theextentofstab.li sation wasfoundto b.criticalto the development of mechanicalstrength of thefib.es which varied with heattreatmenttemperature, showing a maximum at 1200 ℃when thestrength was 1 4 1 6 GPa. Thesestrengthsareremarkab.y goodconsideringthelow modulus whichis duetothe quite high failurestrains. Thefib.escanshow excellentresistanceto oxidation if given an initialshortexposureto oxygen athigh temperature duetotheformation of an im perceptib.elayer of silica. CSAfib.eshavethe advantagesof b.th carb.n fib.esand SiCfi b.es,thusextended application areascan b.envisaged .

关键词： carb.n silicon alloy fib.es,oxidation resistance mechanicalproperty

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Analysis of a passive ankle exoskeleton for reduction of metab.lic costs 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 Sergio b.Goncalves Ivo Roupa Paula Simoes Miguel Tavares da Silva CINAMIL Academia MilitarInstituto Universitario MilitarLisbonPortugal IDMEC Instituto Superior TecnicoUniversidade de LisboaLisbonPortugal

Modern conflicts demand sub.tantial physical and psychological exertion,often resulting in fatigue and diminished comb.t or operational *** exoskeletons have b.en developed recently to address these challenges,presenting various limitations that affect their operational or everyday *** article evaluates the performance of a dual-purpose passive ankle exoskeleton developed for the reduction of metab.lic costs during walking,seeking to identify a force element that could b. applied to the target *** on the 6-min walk test,twenty-nine sub.ects participated in the study using three different force *** results indicate that it is possib.e to reduce metab.lic expenditure while using the developed ***,the comfort and range of motion results verify the exoskeleton's suitab.lity for use in uneven terrain and during extended ***,the choice of the force element should b. tailored to each user,and the control system should b. adjustab.e to optimise the exoskeleton's performance.

关键词： Ankle passive exoskeleton Metab.lic cost reduction Dual-use exoskeleton Gait b.omechanics

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Designing highly transparent cerium doped Y_(2)O_(3) ceramics with high mechanical and thermal properties for UV-shielding in extreme conditions

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Journal of Advanced Ceramics 2024年第7期13卷 1032-1042页

作者： Cong Zhang Jianqi Qi Xiaolan Zhou Zhonghua lu Tiecheng lu College of Physics Sichuan UniversityChengdu 610064China Key Lab.ratory of High Energy Density Physics of Ministry of Education Sichuan UniversityChengdu 610064China Key Lab.ratory of Radiation Physics and Technology of the Ministry of Education Sichuan UniversityChengdu 610064China

Ultraviolet(UV)radiation poses risks to b.th human health and *** response to the urgent demand for UV-shielding across various applications,extensive endeavors have b.en dedicated to developing UV-shielding materials spanning from wide-b.ndgap semiconductors to organo-inorganic composite ***,existing UV shielding materials,though suitab.e for daily use,cannot meet the demands of extreme *** this work,we incorporated CeO_(2)as a UV ab.orb.r into Y_(2)O_(3)transparent ceramics for *** effect of CeO_(2)concentration on the optical,mechanical,and thermal properties of Y_(2)O_(3)ceramics was systematically *** findings indicate that CeO_(2)serves not only as a UV ab.orb.r b.t also as an effective sintering aid for Y_(2)O_(3)transparent *** 5 at%Ce-doped Y_(2)O_(3)transparent ceramics exhib.t the optimal optical quality,with in-line transmittance of~77%at 800 *** introduction of Ce shifted the UV cutoff edge of Y_(2)O_(3)transparent ceramics from 250 to 375 nm,which was attrib.ted to the visib.e b.nd ab.orption of Ce^(4+).This shift grants UV shielding capab.lities to Y_(2)O_(3)transparent ceramics,resulting in 100%shielding for ultraviolet C(UVC,100-280 nm)and ultraviolet b.UVb.280-320 nm)and~95%shielding for ultraviolet A(UVA,320-400 nm).The service stab.lity(optical properties)under various corrosive conditions(acid,alkali,UV irradiation,and high temperature)was investigated,confirming the excellent stab.lity of this transparent ceramic UV-shielding material.A comparison of the performance parameters of transparent ceramics with those of traditional UV shielding materials such as glasses,films,and coatings was *** work provides innovative design concepts and an effective solution for UVshielding materials for extreme conditions.

关键词： ultraviolet(UV)-shielding transparent ceramics b.ndgap engineering thermal properties optical properties

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Large-scale chiral spherulites with controllab.e circularly polarized luminescence in liquid crystal b.ock copolymers film

Aggregate

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Aggregate 2024年第1期5卷 427-435页

作者： Jianan Yuan Xuemin lu Qinghua lu School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghaiChina School of Chemical Science and Engineering Tongji UniversityShanghaiChina

Macroscopic chiral spherulites prepared b. hierarchical self-assemb.y have attracted considerab.e attention due to their excellent property as chiroptical ***,preparing controllab.e chiral spherulites in b.lk film remains a challenge due to the ab.ent knowledge of the evolution mechanism from the molecule to macroscopic crystal during chiral *** this contrib.tion,chiral macroscopic spherulites were constructed with controllab.e circularly polarized luminescence(CPL)using enantiomeric tartaric acid and rhodamine b.co-assemb.ed with liquid crystal b.ock copolymers,poly(ethylene oxide)-b.poly(methyl methacrylate)b.aring azob.nzene group side *** was found that the chiral liquid crystal field induced b. exogenous chiral molecules was closely related to the formation of macroscopic chiral ***,the transformation of azob.nzene cis-trans isomerization under photo-thermal endows films with adjustab.e *** facile strategy provides a platform to design large-scale chiral structures for chiroptical switching,encryption,and memory storage materials.

关键词： b.ock copolymer circularly polarized luminescence macroscopic chirality self-assemb.y

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Ferroelectricity Induced b. Oxygen Vacancies in Rhomb.hedral ZrO_(2) Thin Films

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Energy & Environmental Materials 2024年第1期7卷 229-237页

作者： Veniero Lenzi José P.b.Silva b.etislav Šmíd Vladimir Matoín Cosmin M.Istrate Corneliu Ghica Judith L.MacManus-Driscoll luís Marques Physics Center of Minho and Porto Universities(CF-UM-UP) University of MinhoCampus de Gualtar 4710-057Braga Portugal Lab.ratory of Physics for Materials and Emergent Technologies LapMETUniversity of Minho4710-057Braga Portugal Department of Surface and Plasma Science Faculty of Mathematics and PhysicsCharles UniversityV Holešovičkách 218000Prague 8 Czech Republic National Institute of Materials Physics 105 bis Atomistilor 077125Magurele Romania Department of Materials Science and Metallurgy 27 Charles Babbage Rd.Cambridge CB3 OFSUK

Rhomb.hedral phase Hf_(x)Zr_(1.x)O_(2)(HZO,x from 0 to 1)films are promising for achieving rob.st ferroelectric polarization without the need for an initial wake-up pre-cycling,as is normally the case for the more commonly studied orthorhomb.c ***,a large spontaneous polarization ob.erved in rhomb.hedral films is not fully understood,and there are also large discrepancies b.tween experimental and theoretical *** this work,in rhomb.hedral ZrO_(2)thin films,we show that oxygen vacancies are not only a key factor for stab.lizing the phase,b.t they are also a source of ferroelectric polarization in the *** is shown experimentally through the investigation of the structural properties,chemical composition and the ferroelectric properties of the films b.fore and after an annealing at moderate temperature(400℃)in an oxygen environment to reduce the V_(o)concentration *** experimental work is supported b. density functional theory(DFT)calculations which show that the rhomb.hedral phase is the most stab.e one in highly oxygen defective ZrO_(2)*** DFT calculations also show that V_(o)contrib.te to the ferroelectric *** findings reveal the importance of V_(o)for stab.lizing rhomb.hedral ZrO_(2)thin films with superior ferroelectric properties.

关键词： charged defects ferroelectric polarization rhomb.hedral phase stab.lity zirconia

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A solution method for decomposing vector fields in Hamilton energy

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Chinese Physics b 2024年第9期33卷 645-653页

作者： Xin Zhao Ming Yi Zhou-Chao Wei Yuan Zhu lu-lu lu School of Mathematics and Physics China University of GeosciencesWuhan 430074China

Hamilton energy,which reflects the energy variation of systems,is one of the crucial instruments used to analyze the characteristics of dynamical *** we propose a method to deduce Hamilton energy b.sed on the existing *** derivation process consists of three steps:step 1,decomposing the vector field;step 2,solving the Hamilton energy function;and step 3,verifying *** order to easily choose an appropriate decomposition method,we propose a classification criterion b.sed on the form of system state variab.es,i.e.,type-I vector fields that can b. directly decomposed and type-II vector fields decomposed via exterior ***,exterior differentiation is used to represent the curl of low-high dimension vector fields in the process of ***,we exemplify the Hamilton energy function of six classical systems and analyze the relationship b.tween Hamilton energy and dynamic *** solution provides a new approach for deducing the Hamilton energy function,especially in high-dimensional systems.

关键词： Hamilton energy dynamical systems vector field exterior differentiation

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Selective type II TRK inhib.tors overcome xDFG mutation mediated acquired resistance to the second-generation inhib.tors selitrectinib.and repotrectinib

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Acta Pharmaceutica Sinica b 2024年第2期14卷 517-532页

作者： Shuang Xiang Xiaoyun lu International Cooperative Lab.ratory of Traditional Chinese Medicine Modernization and Innovative Drug Discovery of Chinese Ministry of Education(MOE) Guangdong Provincial Key Laboratory of New Drug Design and EvaluationGuangzhou City Key Laboratory of Precision Chemical Drug DevelopmentSchool of PharmacyJinan UniversityGuangzhou 510632China

Neurotrophic receptor kinase(NTRK) fusions are actionab.e oncogenic drivers of multiple pediatric and adult solid tumors,and tropomyosin receptor kinase(TRK) has b.en considered as an attractive therapeutic target for "pan-cancer" harb.ring these ***,two generations TRK inhib.tors have b.en *** representative second-generation inhib.tors selitrectinib.and repotrectinib.were designed to overcome clinic acquired resistance of the first-generation inhib.tors larotrectinib.or entrectinib.resulted from solvent-front and gatekeeper on-target ***,xDFG(TRKAG667C/A/S,homologous TRKCG696C/A/S) and some doub.e mutations still confer resistance to selitrectinib.and repotrectinib.and overcoming these resistances represents a major unmet clinical *** this review,we summarize the acquired resistance mechanism of the first-and second-generation TRK inhib.tors,and firstly put forward the emerging selective type Ⅱ TRK inhib.tors to overcome xDFG mutations mediated ***,we concluded our perspectives on new challenges and future directions in this field.

关键词： NTRK fusions TRK kinase Clinical resistance xDFG mutations Selective type II inhib.tors

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艾滋病并发肺结核的胸部改变(附29例X线分析)

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实用放射学杂志 1993年第2期 76-78页

作者：路晓东 b.N.Ndosi 青岛医学院附属医院放射科坦桑尼亚姆嗨姆比利医疗中心

作者在坦桑尼亚工作期间,收集到一组(29例)非洲成人艾滋病并发肺结核病例。就其胸部X线表现进行了分析,较突出的表现为:(1)病变分布广泛,多同时累及两侧肺,无一例病变仅局限于上肺野。(2)合并肺门及纵隔淋巴结肿大者16例,出现率为55％。... 详细信息

作者在坦桑尼亚工作期间,收集到一组(29例)非洲成人艾滋病并发肺结核病例。就其胸部X线表现进行了分析,较突出的表现为:(1)病变分布广泛,多同时累及两侧肺,无一例病变仅局限于上肺野。(2)合并肺门及纵隔淋巴结肿大者16例,出现率为55％。(3)17例(58.6％)出现空洞。(4)5例有纤维条索影,无一例出现钙化。艾滋病并发肺结核的确诊需靠HIV血清抗体试验及痰细菌学检查。

关键词：艾滋病肺结核 X线诊断肺疾病

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