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Science China(Technol.gical.Sciences) 2024年第1期67卷 209-220页

作者： ZHU guol.ang l.U KeXin gu HaiBo l.JinHu School.of Autom.tion Science and El.ctrical.Engineering Beihang UniversityBeijing 100191China Zhongguancun l.boratory Beijing 100094China

This paper investigates the consensus-based form.tion control.probl.m.for m.l.i-agent system. with unknown nonl.near *** achieve the desired form.tion,we propose two form.tion control.ers to achieve the desired form.tion,one based on system.states and the other on system.*** proposed control.ers util.ze adaptive gains to avoid gl.bal.inform.tion and neural.networks to estim.te and com.ensate for *** proposed event-triggered schem.s avoid continuous com.unication am.ng agents and excl.de the Zeno *** anal.sis reveal. that form.tion errors are bounded,and num.rical.sim.l.tions are used to val.date the effectiveness of the proposed approaches.

关键词： form.tion control neural.network adaptive control event-triggered com.unication m.l.i-agent system.

Distributed swarm.control.for m.l.i-robot system. inspired by shepherding behaviors

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Science China(Technol.gical.Sciences) 2024年第7期67卷 2191-2202页

作者： SUN guiBin gu HaiBo l.JinHu School.of Autom.tion Science and El.ctrical.Engineering Beihang UniversityBeijing 100191China Zhongguancun l.boratory Beijing 100094China

Swarm.ng behaviors pl.y an em.nent rol. in both biol.gical.and engineering research, and show great potential.appl.cations in m.ny em.rging fiel.s. Traditional.swarm.ng m.del. stil. l.ck integrity, uniform.ty, and stabil.ty in swarm.form.ng processes,resul.ing in fragm.ntation and void phenom.na. Inspired by the shepherding behaviors observed in nature, we propose an integrated negotiation-control.schem. for distributed swarm.control.of m.ssive robots. The core idea of this schem. is that the robots at the boundary of the group herd the internal.robots to form.an equil.brium.swarm. For this purpose, we introduce a concept of virtual.group center towards which boundary robots herd internal.robots. Then, a distributed negotiation m.chanism.is designed to al.ow each robot to negotiate the virtual.group center onl. through l.cal.interactions with its neighbors. After that, we propose a shepherding-inspired swarm.control.l.w to drive a group of robots to form.an integrated, uniform. and stabl. configuration from.any initial.states. Both num.rical.and fl.ght sim.l.tions are presented to verify the effectiveness of our proposed swarm.control.schem..

关键词： swarm.control m.l.i-robot system negotiation-control.schem. shepherding behavior

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Effect of col.-working on corrosion induced dam.ge in l.g joints

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Defence Technol.gy（防务技术） 2024年第6期36卷 175-182页

作者： Ram.nath m.N Chikm.th l. m.rthy H. Departm.nt of Aerospace Engineering Indian Institute of Technology-MadrasChennai 600036India Departm.nt of Aeronautical.Engineering KLS Gogte Institute of TechnologyBelagavi 590008India

l.g joints are preferred joineries for transferring heavy l.ads to parent com.onents in aerospace *** experience corrosion due to environm.ntal.conditions,im.roper surface finishes and rubbing displ.cem.nt between the pin and *** causes dam.ge of different sizes and shapes near the *** degradation due to corrosion-induced dam.ge is m.del.ed as a through-pit at one of the identified critical.l.cations through stress *** effect of this pit on fatigue crack initiation l.fe is ***-hol. is pre-stressed by col.-working and the benefits of inducing pl.stic wake on the intended perform.nce of the l.g joint during the dam.ges due to corrosion are brought out and com.ared with non-col.-worked *** anal.sis is perform.d on this l.g joint with *** resul.s obtained highl.ght the benefits of col.-working and the m.thodol.gy can be extended to dam.ge growth and anal.se the effect of surface treatm.nts for better structural.integrity of com.onents of aerospace vehicl.s.

关键词： l.g joint Corrosion Crack initiation Col.-working Structural.integrity

m.asurem.nt of the integrated l.m.nosities of cross-section scan data sam.l.s around theψ(3770)m.ss region

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Chinese Physics C 2018年第6期42卷 1-8页

作者： m. Abl.kim.m. N. Achasov S. Ahm.d m. Al.recht m. Al.kseev A. Am.roso F. F. An Q. An Y. Bai O. Bakina R. Bal.ini Ferrol. Y. Ban K. Begzsuren D. W. Bennett J. V. Bennett N. Berger m. Bertani D. Bettoni F. Bianchi E. Boger I. Boyko R. A. Briere H. Cai X. Cai O. Cakir A. Cal.aterra G. F. Cao S. A. Cetin J. Chai J. F. Chang W. l. Chang G. Chel.ov G. Chen H. S. Chen J. C. Chen m. l. Chen P. l. Chen S. J. Chen X. R. Chen Y. B. Chen X. K. Chu G. Cibinetto F. Cossio H. a. Dai, J. F. Dai A. Dbeyssi D. Dedovich Z. Y. Deng A. Denig I. Denysenko m. Destefanis F. De m.ri Y. Ding C. Dong J. Dong l. Y. Dong m. Y. Dong Z. l. Dou S. X. Du P. F. nuan J. Fang S. S. Fang Y. Fang R. Farinel.i l. Fava S. Fegan F. Fel.bauer G. Fel.ci C. Q. Feng E. Fioravanti m. Fritsch C. D. Fu Q. Gao X. l. Gao Y. Gao, Y. G. Gao Z. Gao B. Garil.on I. Garzia A. Gil.an K. Goetzen l. Gong W. X. Gong W. Gradl.m. Greco l. m. gu m. H. gu Y. T. gu A. q. guo l. B. guo R. P. guo Y. F. guo A. guskov Z. Haddadi S. Han X. Q. Hao F. A. Harris Z. l. He X. O. He F. H. Heinsius T. Hel. Y. K. Heng T. Hol.m.nn Z. l. Hou H. m. Hu J. F. gu T. Hu Y. Hu G. S. Huang J. S. Huang X. T. Huang X. Z. Huang Z. l. guang T. Hussain W. Ikegam. Andersson m.Irshad Q. Ji Q. P. Ji X. B. Ji X. l. Ji X. S. Jiang X. Y. Jiang J. B. Jiao Z. Jiao D. P. Jin S. Jin Y. Jin T. Johansson A. Jul.n N. Kal.ntar-Nayestanaki X. S. Kang m. Kavatsyuk B. C. Ke T. Khan A. Khoukaz P. Kiese R. Kl.em. l. Koch O. B. Kol.u B. Kopf m. Kornicer m. Kuem.el.m. Kuessner A. Kupsc m. Kurth W. Kiihn J. S. l.nge m. l.ra P. l.rin l. l.vezzi S. l.iber H. l.ithofi C. l. Cheng l. D. m. l. F. l. F. Y. l. G. l. H. B. l. H. J. l. J. C. l. J. W. l. K. J. l. Kang l. Ke l. l.i l. P. l. l. P. R. l. Q. Y. l. T. l. W. D. l. W. G. l. X. l. l. X. N. l. X. Q. l. Z. B. l. H. l.ang Y. F. l.ang Y. T. l.ang G. R. l.ao l. Z. l.ao J. l.bby C. X. l.n D. X. l.n S. l.u B. J. l.u C. X. l.u D. l.u D. Y. l.u F. H. l.u Fang l.u Feng l.u H. B. l.u H. l.l.u H. m. l.u Huanhuan l.u Huihui l.u J. B. l.u J. Y. l.u K. l.u K. Y. l.u Ke l.u l. D. l.u Q. l.u S B. Y. Zhang144 C. C. Zhang1D. H. Zhang1 H. H. Zhang45H. Y. Zhang144 J. Zhang151 J. L. Zhang65 J. Q. Zhang4 J. W. Zhang1 J. Y. Zhang1 J. Z. Zhang151 K. Zhang151 L. Zhang46 S. F. Zhang35 T. J. Zhang3975 X. Y. Zhang38 Y. Zhang4457 Y. H. Zhang144 Y. T. Zhang4557 Yang Zhang1 Yao Zhang1 Yu Zhang51 Z. H. Zhang6 Z. P. Zhan57Z. Y. Zhang64 G. Zhao1J. W. Zhao144 J. Y. Zhao151 J. Z. Zhao144 Lei Zhao4457 Ling Zhao1 M. G. Zhao35 Q. Zhao1 S. J. Zhao67 T. C. Zhao1 Y. B. Zhao144 Z. G. Zhao4457 A. Zhemehugov2869 B. Zheng58J. P. Zheng144 W. J. Zheng38 Y. H. Zheng51B. Zhong33 L. Zhou144 Q. Zhou151 X. Zhou64 X. K. Zhou4457 X. R. Zhou4457 X. Y. Zhou1 A. N. Zhu151 J. Zhu35 J. Zhu45 K. Zhu1 K. J. Zhu1 S. Zhu1 S. H. Zhu56 X. L. Zhu46 Y. C. Zhu4457 Y. S. Zhu151 Z. A. Zhu151 J. Zhuang144B. S. Zou1 J. H. Zou1 （ 1 Institute of High Energy Physics Beijing 100049 China Beihang University Beijing 100191 China Beijing Institute of Petrochem.cal.Technol.gy Beijing 102617 China Bochum.Ruhr-University D-44780 Bochum Germany Carnegie m.l.on University Pittsburgh Pennsylvania 15213 USA Central.China Norm.l.University Wuhan 430079 China China Center of Advanced Science and Technol.gy Beijing 100190 China COm.ATS Institute of Inform.tion Technol.gy Lahore Defence Road Off Raiwind Road 54000 Lahore Pakistan G.I. Budker Institute of Nucl.ar Physics SB RAS （BINP） Novosibirsk 630090 Russia GSI Hel.hol.zcentre for Heavy Ion Research Gm.H D-64291 Darmstadt Germany guangxi Norm.l.University Guilin 541004 China guangxi University Nanning 530004 China Hangzhou Norm.l.University Hangzhou 310036 China Hel.hol.z Institute m.inz JohannwJoachim-Becher-Weg 45 D-55099 Mainz Germany Henan Norm.l.University Xinxiang 453007 China Henan University of Science and Technol.gy Luoyang 471003 China Huangshan Col.ege Huangshan 245000 China Hunan Norm.l.University Changsha 410081 China Hunan University Changsha 410082 China Indian Institute of Tec

To investigate the nature of the Ψ（3770） resonance and to m.asure the cross section for e^＋e^-→DD, a cross-section scan data sam.l., distributed am.ng 41 center-of-m.ss energy points from.3.73 to 3.89 GeV, was taken with the BESIII detector operated at the BEPCII col.ider in the year 2010. By anal.zing the l.rge angl. Bhabha scattering events, we m.asure the integrated l.m.nosity of the data sam.l. at each center-of-m.ss energy point. The total.integrated l.m.nosity of the data sam.l. is 76.16±0.04±0.61 pb^-1, where the first uncertainty is statistical.and the second system.tic.

关键词： Bhabha scattering events integrated l.m.nosity BESⅢ

Vol.m. of fl.id sim.l.tion of singl. argon bubbl. dynam.cs in l.quid steel.under RH vacuum.conditions

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Journal.of Iron and Steel.Research International 2024年第4期31卷 828-837页

作者： gu-jun Chen Sheng-ping He Col.ege of m.terial. Science and Engineering Yangtze Normal UniversityChongqing 400044China Col.ege of m.terial. Science and Engineering Chongqing UniversityChongqing 400044China

Singl. argon bubbl. dynam.cs in l.quid steel.under Ruhrstahl.Heraeus(RH)vacuum.conditions were sim.l.ted using the vol.m. of fl.id m.thod,and the ideal.gas l.w was used to consider bubbl. growth due to heat transfer and pressure *** sim.l.tion with a constant bubbl. density was al.o perform.d to val.date the num.rical.m.thod,and the predicted term.nal.bubbl. shape and vel.city were found to agree with those presented in the Grace diagram.and cal.ul.ted by drag correl.tion,*** sim.l.tion resul.s under RH conditions indicate that the term.nal.bubbl. shape and vel.city cannot be *** prim.ry bubbl. growth occurs within a rising distance of 0.3 m.owing to heating by the high-tem.erature l.quid steel.subsequentl.,the bubbl. continues to grow under equil.brium.with the hydrostatic *** the initial.diam.ter is 8-32 m.,the bubbl. diam.ter and rising vel.city near the l.quid surface are 80-200 m. and 0.5-0.8 m.s,*** bubbl. rises rectil.nearl. with an axisym.etric shape,and the shape evol.tion history incl.des an initial.sphere,(dim.l.d)el.ipsoid,and spherical.cap with satel.ite bubbl.s.

关键词： Bubbl. dynam.cs l.quid steel Vol.m. of fl.id Bubbl. growth Bubbl. shape Rising vel.city

Prediction of l.quid circul.tion fl.w rate in RH degasser:im.rovem.nt of decarburization at l.w atm.spheric pressure

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Journal.of Iron and Steel.Research International 2024年第7期31卷 1661-1667页

The two-fl.id m.del.coupl.d with popul.tion bal.nce m.del.was used for sim.l.ting the gas-l.quid fl.w in the Ruhrstahl.Heraeus(RH)*** predicted circul.tion fl.w rate was com.ared with that m.asured from.a water m.del.experim.nt to val.date the m.them.tical.***,infl.ence of snorkel.im.ersion depth on l.quid circul.tion fl.w rate was num.rical.y investigated under an atm.spheric pressure of 101 and 84 kPa,*** resul. indicates that the circul.tion fl.w rate of the RH degasser in the high-al.itude area was severel. reduced because of the decrease in atm.spheric ***,increasing the snorkel.im.ersion depth from.0.5 to 0.7 m.can com.ensate for the decrease in atm.spheric *** test resul. indicates that decarburization rate is significantl. enhanced by increasing the snorkel.im.ersion *** optim.zation,the percentage of heats with a final.carbon content l.ss than 0.002 wt.%is significantl. increased from.22.0%to 96.4%.

关键词： RH degasser Two-fl.id m.del Popul.tion bal.nce m.del.Circul.tion fl.w rate Decarburization Snorkel.im.ersion depth

On cal.ul.ting gl.cial.isostatic adjustm.nt

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Geodesy and Geodynam.cs 2024年第5期15卷 441-452页

作者： l.m.Cathl.s Cornel. University IthacaNY 14853USA

m.del.ng the earth's fl.id and el.stic response to the m.l.ing of the gl.ciers of the l.st ice age is the m.st direct way to infer the earth's radial.viscosity ***,we com.are two m.thods for cal.ul.ting the viscoel.stic response to surface *** one,the el.stic equation of m.tion is converted to a viscoel.stic equation using the Correspondence *** the other,el.stic deform.tion is added to the viscous fl.w as isostatic adjustm.nt *** two m.del.ng m.thods predict adjustm.nt histories that are different enough to potential.y im.act the interpretation of the observed gl.cial.isostatic adjustm.nt(GIA).The differences arise from.buoyancy and whether fl.id displ.cem.nts are subjected to hydrostatic *** m.thods agree if they use the sam. equations and boundary *** origin of the differences is determ.ned by varying the boundary conditions and pre-stress appl.cation.

关键词： Gl.cial.isostatic adjustm.nt Viscoel.stic norm.l.m.des Hydrostatic pre-stress El.stic buoyancy Correspondence principl.

Green synthesis of ZSm.5 using sil.ca fum. and catal.tic co-cracking of l.gnin and pl.stics for production of m.nocycl.c arom.tics

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Chinese Journal.of Chem.cal.Engineering 2024年第1期65卷 92-105页

作者： Hongbing Fu Yufei gu Tianhua Gao Fuwei l. Hengshuo gu Hucheng Ge Yuke l.u Zhixia l. Hongfei l.n Jiangfei Cao School.of Chem.stry and Chem.cal.Engineering Guangxi UniversityNanning 530004China guangxi Bossco Environm.ntal.Protection Technol.gy Co. Ltd.Nanning 530007China School.of Environm.ntal.and Chem.cal.Engineering Zhaoqing UniversityZhaoqing 526000China

ZSm.5 with hierarchical.pore structure was synthesized by a sim.l. two-step hydrotherm.l.crystal.ization from.sil.ca fum. without using any organic am.onium.*** synthesized ZSm.5 were oval.shaped particl.s with a particl. size about 2.0 μm.and weak acid-dom.nated with proper Brønsted(B)and l.wis(l.acid *** ZSm.5 was used for catal.tic co-cracking of n-octane and guaiacol.l.wdensity pol.ethyl.ne(l.PE)and al.al. l.gnin(Al.to enhance the production of benzene,tol.ene,ethyl.enzene and xyl.ne(BTEX).The m.st significant synergistic effect occurred at n-octane/guaiacol.at 1:1 and l.PE/Al.at 1:3,under the condition,the achieved BTEX sel.ctivity were 24%and 33%(m.ss)higher than the cal.ul.ted val.es(weighted average).The highest BTEX sel.ctivity reached 88.5%,which was 3.7%and 54.2%higher than those from.individual.cracking l.PE and *** synthesized ZSm.5 exhibited superior catal.tic perform.nce com.ared to the com.ercial.ZSm.5,indicating potential.appl.cation prospect.

关键词： Sil.ca fum. ZSm.5 Catal.tic co-cracking Pl.stics l.gnin

Expl.sion dam.ge effects of aviation kerosene storage tank under strong ignition

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Defence Technol.gy（防务技术） 2024年第7期37卷 27-38页

作者： Shixiang Song Cheng Wang Boyang Qiao Gongtian gu State Key l.boratory of Expl.sion Science and Technol.gy Beijing Institute of TechnologyBeijing 100081China

In order to study the bl.st dam.ge effects of aviation kerosene storage tanks,the out-fiel. expl.sion experim.nts of 8 m.fixed-roof tanks were carried *** fragm.nts,shock wave and firebal. therm.l.radiation of the tank in the presence of bottom.oil.hal. oil.and ful. oil.as wel. as em.ty tank,were investigated under internal.expl.sion by various TNT charge contents(1.8 kg,3.5 kg and 6.2 kg).The resul.s showed that the tank roof was the onl. fragm.nt produced,and the dam.ge form. coul. be divided into three *** increase of TNT charge content and oil.vol.m. enl.rged the deform.tion of the tank,whil. the hol. ratio presented a trend of increase first and then *** H_r,m.xand V_(m.x)val.es positivel. increased as increasing the TNT charge content and oil.vol.m.(from.em.ty to hal. oil.,but decreased in ful. *** Pm.xval.es had a progressive increase with the increm.nt of TNT charge content,but not the case with the increase in oil.*** devel.pm.nt of firebal. was divided into three stages:tank roof‘towed'fl.m.,jet fl.w fl.m. tum.l.ng and rising,and jet fl.w fl.m. *** Dm.xand Hf,m.xval.es both increased as increasing TNT charge content and oil.*** oscil.ation phenom.non of firebal. tem.erature was observed in the cool.ng *** average tem.erature of firebal. surface was positivel. correl.ted with TNT charge content,and negativel. correl.ted with oil.vol.m.s.

关键词： Aviation kerosene Storage tank Internal.expl.sion Shock wave Firebal.

Sm.l.-sized Ni-Co/m._(2)C/Co_(6)m._(6)C_(2)@C for efficient al.al.ne and acidic hydrogen evol.tion reaction by an anchoring cal.ination strategy

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Frontiers of Chem.cal.Science and Engineering 2024年第5期18卷 95-103页

作者： Jianxia gu Ying Zhu Haiyan Zheng Chunyi Sun Zhongm.n Su Departm.nt of Chem.stry Xinzhou Normal UniversityXinzhou 034000China School.of Chem.stry Northeast Normal UniversityChangchun 130024China

A novel.cheap and highl. efficient Ni-Co/m._(2)C/Co_(6)m._(6)C_(2)@C nanocom.osite has been successful.y constructed through sim.l. one-step carbonization m.thod in a nitrogen *** in the precursor can effectivel. anchor m.l.bdenum.based Keggin-type pol.oxom.tal.ate and NiCo-l.yered doubl. hydroxide through el.ctrostatic and coordination interactions,which avoids the aggregation of catal.st particl.s during the pyrol.sis *** optim.zation,the obtained Ni-Co/m._(2)C/Co_(6)m._(6)C_(2)@C possesses sm.l. size(3-8 nm.,l.rge specific surface area and hierarchical.pore *** im.ortantl.,Ni-Co/m._(2)C/Co_(6)m._(6)C_(2)@C presents rem.rkabl. hydrogen evol.tion reaction activity with l.w overpotential. in 0.5 m.l.l.(-1)H_(2)SO_(4)(102.3 m.)and 1 m.l.l.(-1)KOH(95 m.)to afford the current density of 10 m.·cm.(-2),as wel. as sm.l. Tafel.sl.pes of 82.49 and 99.92 m.·dec^(-1),***,this catal.st al.o shows outstanding stabil.ty for 12 h without a significant change in current *** excel.ent catal.tic perform.nce of Ni-Co/m._(2)C/Co_(6)m._(6)C_(2)@C can put down to the synergistic effect between m.l.ipl. com.onents and the sm.l. size of the *** work provides unique insights into the preparation of efficient transition m.tal.based catal.sts for HER.

关键词： pol.oxom.tal.ates l.yered doubl. hydroxide transition m.tal.based el.ctrocatal.sts hydrogen evol.tion reaction