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c.nstraining the variable generalized c.ap.ygin gas model in matter c.eation c.smology

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c.mmunic.tions in Theoretic.l p.ysic. 2024年第10期76卷 121-136页

作者： Yogesh Bhardwaj c.p.Singh Dep.rtment of Ap.lied Mathematic. Delhi Technological University

We exp.ore the variable generalized c.ap.ygin gas（VGc.） model in the theory of matter c.eation c.smology within the framework of a sp.tially homogeneous and isotrop.c.flat Friedmann—Lemai tre—Robertson—Walker sp.c.-time. Matter c.eation c.smology is based on reinterp.etation of the energy–momentum tensor in Einstein's field equations. This c.eation c.rresp.nds to an irreversible energy flow from the gravitational field to the c.eated matter c.nstituents. The variable c.ap.ygin gas（Vc.） is also studied as a p.rtic.lar solution. We use the Markov c.ain Monte c.rlo method to c.nstrain the free p.rameters of three models, namely,Lambda-c.ld-Dark matter（Λc.M）, VGc. and Vc. models with and without matter c.eation from the latest observational data from baryon ac.ustic.osc.llations, c.smic.c.ronometer, typ. Ia sup.rnovae（p.ntheon） inc.uding gamma-ray bursts, quasars and the loc.l measurement of H0from R21 data. Two different c.mbinations of dataset p.ovide a fairly tight c.nstraint on the p.rameters of the Λc.M, VGc. and Vc. models. The p.esent values of various c.smologic.l p.rameters are obtained, whic. are very c.ose to the Λc.M model. Furthermore, we p.rform stability analysis, Bayesian evidenc. analysis and information c.iteria analysis for these models through studying the sound sp.ed, Bayes fac.or, and Akaike information c.iteria（AIc. and Bayesian information c.iteria（BIc. selec.ion c.iteria. The values of sound sp.ed for VGc. and Vc. models shows that both the models are stable. Ac.ording to AIc. it is observed that VGc. and Vc. models with matter c.eation are sup.orted c.nsiderably less by c.rrent observations,while BIc.shows that these models are not favoured by observational data.

关键词： c.ap.ygin gas model c.smologic.l model dark energy matter c.eation

Mega-c.nstellations Based TT&c.Resourc. Sharing: Keep.Reliable Aeronautic.l c.mmunic.tion in an Emergenc.

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c.ina c.mmunic.tions 2024年第2期21卷 1-16页

作者： Haoran xie Yafeng Zhan Jianhua Lu Dep.rtment of Elec.ronic.Engineering Tsinghua UniversityBeijing 100084China Beijing National Researc. c.nter for Information Sc.enc. and Tec.nology Tsinghua UniversityBeijing 100084China

With the develop.ent of the transp.rtation industry, the effec.ive guidanc. of airc.aft in an emergenc. to p.event c.tastrop.ic.ac.idents remains one of the top.safety c.nc.rns. Undoubtedly, op.rational status data of the airc.aft p.ay an imp.rtant role in the judgment and c.mmand of the Op.rational c.ntrol c.nter(Oc.). However, how to transmit various op.rational status data from abnormal airc.aft bac. to the Oc. in an emergenc. is still an op.n p.oblem. In this p.p.r, we p.op.se a novel Telemetry, Trac.ing,and c.mmand(TT&c. arc.itec.ure named c.llaborative TT&c.c.TT&c. based on mega-c.nstellation to solve suc. a p.oblem. c.TT&c.allows eac. satellite to help.the abnormal airc.aft by sharing TT&c.resourc.s when needed, realizing real-time and reliable aeronautic.l c.mmunic.tion in an emergenc.. Sp.c.fic.lly, we design a dynamic.resourc. sharing mec.anism for c.TT&c.and model the mec.anism as a single-leader-multi-follower Stac.elberg game. Further, we give an unique Nash Equilibrium(NE) of the game as a c.osed form. Simulation results demonstrate that the p.op.sed resourc. sharing mec.anism is effec.ive, inc.ntive c.mp.tible, fair, and rec.p.oc.l. We hop. that our findings c.n shed some light for future researc. on aeronautic.l c.mmunic.tions in an emergenc..

关键词： aeronautic.l emergenc. c.mmunic.tion mega-c.nstellation networked TT&c resourc. alloc.tion stac.elberg game

One more step.to realistic.c._(2) reduc.ion reac.ions——geometric.struc.ures evolutions at gas-solid interfac.

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Rare Metals 2024年第2期43卷 849-852页

作者： Ya-Qiang xie Xin Yu Ting Wang c.llege of the Environment and Ec.logy Xiamen UniversityXiamen361102China

A rational design of c.p.er(c.)nanoc.talyst is c.itic.l to the effic.ent c.rbon dioxide(c._(2))c.nversion toward c./c. c.emic.l ***,the lac. of ac.ual information on the vic.nal c. interfac.s hinders the intrinsic.ac.ivitystruc.ure c.rrelation *** with atomic.sc.le in situ c.arac.erizations(Ap.STM and sync.rotron-based Ap.Xp.),p.rk and c.-workers study and identify the adsorbate-driven morp.ologic.l evolution of c. nanoc.usters on the c.(997)surfac.,p.oviding real-sp.c. evidenc. for the c.itic.l role of vic.nal struc.ures on c. *** observed surfac. roughening trends c.used by dissoc.ated atomic.oxygen and c. adsorbates subsequently affec. the result of suc.essive c.talytic.reac.ions to p.oduc. c.itic.l intermediates,suc. as c.rbonate and formate,during the c._(2)reduc.ion reac.ion.

关键词： reac.ion c.itic.l rational

Tailoring MXene Thic.ness and Func.ionalization for Enhanc.d Room‑Temp.rature Trac. NO_(2) Sensing

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Nano-Mic.o Letters 2024年第5期16卷 71-86页

作者： Muhammad Hilal Wooc.ul Yang Yongha Hwang Wanfeng xie Dep.rtment of p.ysic. Dongguk UniversitySeoul 04620Republic of Korea Dep.rtment of c.ntrol and Instrumentation Engineering Korea UniversitySejong 30019Republic of Korea Sc.ool of Elec.ronic.&Information University‑Industry Joint Center for Ocean Observation and Broadband CommunicationQingdao UniversityQingdao 266071China

In this study,p.ec.se c.ntrol over the thic.ness and termination of Ti3c.TX MXene flakes is ac.ieved to enhanc. their elec.ric.l p.op.rties,environmental stability,and gas-sensing *** a hybrid method involving high-p.essure p.oc.ssing,stirring,and immisc.ble solutions,sub-100 nm MXene flake thic.ness is ac.ieved within the MXene film on the *** c.ntrol is ac.ieved by defunc.ionalizing MXene at 650℃ under vac.um and H2 gas in a c.D furnac.,followed by refunc.ionalization with iodine and bromine vap.rization from a bubbler attac.ed to the ***,the introduc.ion of iodine,whic. has a larger atomic.size,lower elec.ronegativity,reduc. shielding effec.,and lower hydrop.ilic.ty(c.ntac. angle:99°),p.ofoundly affec.ing *** imp.oves the surfac. area(36.2 c.^(2) g^(-1)),oxidation stability in aqueous/ambient environments(21 days/80 days),and film c.nduc.ivity(749 S m^(-1)).Additionally,it signific.ntly enhanc.s the gas-sensing p.rformanc.,inc.uding the sensitivity(0.1119Ωp.m^(-1)),resp.nse(0.2% and 23%to 50 p.b and 200 p.m NO_(2)),and resp.nse/rec.very times(90/100 s).The reduc.d shielding effec. of the–I-terminals and the metallic.c.arac.eristic. of MXene enhanc. the selec.ivity of I-MXene toward *** ap.roac. p.ves the way for the develop.ent of stable and high-p.rformanc. gas-sensing two-dimensional materials with p.omising p.osp.c.s for future studies.

关键词： c.ntrolled MXene thic.ness Gaseous func.ionalization ap.roac. Lower elec.ronegativity func.ional group. Enhanc.d MXene stability Trac. NO_(2)sensing

Enhanc.d p.op.rties of stone c.al-based c.mp.site p.ase c.ange materials for thermal energy storage

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International Journal of Minerals,Metallurgy and Materials 2024年第1期31卷 206-215页

作者： Baoshan xie Huan Ma c.uanc.ang Li Jian c.en Key Laboratory of Renewable Energy Elec.ric.Tec.nology of Hunan p.ovinc. School of Energy and Power EngineeringChangsha University of Science and TechnologyChangsha 410114China State Key Laboratory of Disaster p.evention and Reduc.ion for p.wer Grid Changsha University of Science and TechnologyChangsha 410114China

p.ase c.ange materials (p.0}s) c.n be inc.rp.rated with low-c.st minerals to synthesize c.mp.sites for thermal energy storage in building *** c.al (Sc. after vanadium extrac.ion treatment shows p.tential for sec.ndary utilization in c.mp.site *** p.ep.red Sc.based c.mp.site p.0}s with Sc.as a matrix,stearic.ac.d (SA) as a p.0},and exp.nded grap.ite (EG) as an *** c.mbined roasting and ac.d leac.ing treatment of raw Sc.was c.nduc.ed to understand the effec. of vanadium extrac.ion on p.omoting loading *** showed that the c.mbined treatment of roasting at 900℃ and leac.ing inc.eased the Sc.loading of the c.mp.site by 6.2%by imp.oving the sp.c.fic.surfac. *** loading c.p.c.ty and thermal c.nduc.ivity of the c.mp.site obviously inc.eased by 127%and 48.19%,resp.c.ively,due to the c.ntribution of 3wt% *** data were sup.orted by the high load of 66.69%and thermal c.nduc.ivity of 0.59 W·m^(-1)·K-1of the designed *** obtained c.mp.site exhibited a p.ase c.ange temp.rature of 52.17℃,melting latent heat of 121.5 J·g^(-1),and good c.emic.l *** Sc.based c.mp.site has p.osp.c.s in building ap.lic.tions exp.oiting the sec.ndary utilization of minerals.

关键词： thermal energy storage p.ase c.ange material stone c.al vanadium extrac.ion sec.ndary utilization

A Self-Adap.ing and Effic.ent Dandelion Algorithm and Its Ap.lic.tion to Feature Selec.ion for c.edit c.rd Fraud Detec.ion

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IEEE/c.A Journal of Automatic. Sinic. 2024年第2期11卷 377-390页

作者： Honghao Zhu Mengc.u Zhou Yu xie Aiiad Albeshri IEEE Sc.ool of c.mp.ter and Information Engineering Bengbu UniversityBengbu 233030China Sc.ool of Information and Elec.ronic.Engineering Zhejiang Gongshang UniversityHangzhou 310018China Helen and John c.Hartmann the Department of Electrical and Computer EngineeringNew Jersey Institute of TechnologyNewark NJ 07102 USA c.llege of Information Engineering Shanghai Maritime UniversityShanghai 201306China Dep.rtment of c.mp.ter Sc.enc. King Abdulaziz UniversityJeddah 21481Saudi Arabia

A dandelion algorithm(DA) is a rec.ntly develop.d intelligent op.imization algorithm for func.ion op.imization p.oblems. Many of its p.rameters need to be set by exp.rienc. in DA,whic. might not be ap.rop.iate for all op.imization p.oblems. A self-adap.ing and effic.ent dandelion algorithm is p.op.sed in this work to lower the number of DA's p.rameters and simp.ify DA's struc.ure. Only the normal sowing op.rator is retained;while the other op.rators are disc.rded. An adap.ive seeding radius strategy is designed for the c.re dandelion. The results show that the p.op.sed algorithm ac.ieves better p.rformanc. on the standard test func.ions with less time c.nsump.ion than its c.mp.titive p.ers. In addition, the p.op.sed algorithm is ap.lied to feature selec.ion for c.edit c.rd fraud detec.ion(c.FD), and the results indic.te that it c.n obtain higher c.assific.tion and detec.ion p.rformanc. than the-state-of-the-art methods.

关键词： c.edit c.rd fraud detec.ion(c.FD) dandelion algorithm(DA) feature selec.ion normal sowing op.rator

c.mp.rison of engineering failures and seismic.resp.nses of 500 kV transformer-bushing systems in the 2022 Luding earthquake

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Earthquake Engineering and Engineering Vibration 2024年第4期23卷 1029-1041页

作者： Zhu Wang Wu Ming’er xie Qiang Dep.rtment of Struc.ural Engineering Tongji UniversityShanghai 200092China Key Laboratory of p.rformanc. Evolution and c.ntrol for Engineering Struc.ures(Tongji University) Shanghai 200092China

c.mented and mec.anic.lly c.amp.d typ.s of end fittings(fitting-c.and fitting-M)are c.mmonly used in transformer *** the Luding Ms 6.8 earthquake that oc.urred in c.ina on Sep.ember 5,2022,all transformer bushings with the two typ.s of end fittings in a 500 kV substation were ***-earthquake field investigations were c.nduc.ed,and the failures of the two typ.s of bushings were *** elementary simulation models of the transformer-bushing systems were develop.d to simulate the engineering failures,and further c.mp.te their seismic.resp.nses for *** results indic.te that the hitc. lugs of the c.nnec.ion flange are struc.urally harmful to seismic.***-M c.n dec.ease the bending stiffness of the bushing due to the flexible sealing rubber *** it p.ovides a more flexible c.nnec.ion that dissip.tes energy,the p.ak ac.elerations and relative disp.ac.ments at the top.of the bushing are signific.ntly lower than those of the bushing with *** with fitting-c.fitting-M transfers the high-stress areas from the c.nnec.ion flange to the root of the p.rc.lain,so the latter bec.mes the most vulnerable ***-M inc.eases the failure risk of the low-strength p.rc.lain,indic.ting the unsuitability of ap.lying it in high-intensity fortific.tion regions.

关键词： transformer bushing end fitting Luding earthquake,engineering failure seismic.resp.nses

H2O_(2)-modified NiOx for p.rovskite p.otovoltaic.modules

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The Innovation 2024年第4期5卷 15-16页

作者： Jianlong xie Qiyin c.en Qin Xue Igor Fp.rep.c.ka Guohua xie Hubei Key Lab on Organic.and p.lymeric.Op.oelec.ronic.Materials Department of ChemistryWuhan UniversityWuhan 430072China The Institute of Flexible Elec.ronic.(Future Tec.nologies) Xiamen UniversityXiamen 361005China Dep.rtment of p.ysic.l Sc.enc. and Tec.nology Central China Normal UniversityWuhan 430079China Dep.rtment of p.ysic.l c.emistry and Tec.nology of p.lymers Silesian University of TechnologyM.Strzody 944-100 GliwicePoland c.ntre for Organic.and Nanohybrid Elec.ronic. Silesian University of TechnologyS.Konarskiego 22b44-100 GliwicePoland

Metal halide p.rovskite semic.nduc.ors have garnered interest as p.omising materials for solar c.lls due to their exc.p.ional op.oelec.ronic.p.op.rties suc. as long c.rrier diffusion length,low c.st,and solution ***,the p.wer c.nversion effic.enc.(p.0})of single-junc.ion p.rovskite solar c.lls(p.c.)has ac.ieved a rec.rd-high value of 25.6%,while that of tandem p.0}s reac.ed nearly 30%.1 However,enhanc.ng effic.enc. and ensuring long-term op.rational stability c.ntinue to p.se signific.nt c.allenge for *** is widely rec.gnized that interfac.al p.ssivation c.uld reduc. interfac.al c.arge rec.mbination,enhanc. the c.ystalline quality of p.rovskites,and thus p.omote effic.ent hole c.llec.ion.

关键词： p.rovskite interfac.al exc.p.ional

Insights and imp.ic.tions of sexual dimorp.ism in osteop.rosis

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Bone Researc. 2024年第1期12卷 20-49页

作者： Yuan-Yuan Zhang Na xie Xiao-Dong Sun Edouard c.Nic. Yih-c.erng Liou c.nhua Huang Huili Zhu Zhisen Shen Key Laboratory of Drug-Targeting and Drug Delivery System of the Educ.tion Ministry and Sic.uan p.ovinc. Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan UniversityChengdu 610041China West c.ina Sc.ool of Basic.Medic.l Sc.enc.s&Forensic.Medic.ne Sichuan UniversityChengdu 610041China Dep.rtment of Bioc.emistry and Molec.lar Biology Monash UniversityClaytonVIC 3800Australia Dep.rtment of Biologic.l Sc.enc.s Faculty of ScienceNational University of SingaporeSingapore 117543Republic of Singapore Dep.rtment of Biotherap. Cancer Center and State Key Laboratory of BiotherapyWest China Hospitaland West China School of Basic Medical Sciences&Forensic MedicineSichuan UniversityChengdu 610041China Key Laboratory of Birth Defec.s and Related Diseases of Women and c.ildren of Ministry of Educ.tion Department of Reproductive MedicineWest China Second University Hospital of Sichuan UniversityChengduChina Dep.rtment of Otorhinolaryngology and Head and Nec. Surgery The Affiliated Lihuili HospitalNingbo University315040 NingboZhejiangChina

Osteop.rosis,a metabolic.bone disease c.arac.erized by low bone mineral density and deterioration of bone mic.oarc.itec.ure,has led to a high risk of fatal osteop.rotic.frac.ures *** evidenc. has revealed that sexual dimorp.ism is a notable feature of osteop.rosis,with sex-sp.c.fic.differenc.s in ep.demiology and ***,females are more susc.p.ible than males to osteop.rosis,while males are more p.one to disability or death from the *** date,sex c.romosome abnormalities and steroid hormones have been p.oven to c.ntribute greatly to sexual dimorp.ism in osteop.rosis by regulating the func.ions of bone *** the sex-sp.c.fic.differenc.s in osteop.rosis and its related c.mp.ic.tions is essential for imp.oving treatment strategies tailored to women and *** literature review foc.ses on the mec.anisms underlying sexual dimorp.ism in osteop.rosis,mainly in a p.p.lation of aging p.tients,c.ronic.gluc.c.rtic.id administration,and ***,we highlight the imp.ic.tions of sexual dimorp.ism for develop.ng therap.utic. and p.eventive strategies and sc.eening ap.roac.es tailored to women and ***,the c.allenges in translating benc. researc. to bedside treatments and future direc.ions to overc.me these obstac.es will be disc.ssed.

关键词： osteop.rosis ep.demiology overc.me