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m.crostructure evolution and sh.pe m.m.ry beh.viors of Ni_(47)Ti_(44)Nb_(9)alloy subjected to m.ltistep th.rm.m.ch.nical loading with.different prestrain levels

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Journal of m.terials Science & Tech.ology 2024年第4期171卷 80-93页

作者： Y.h.Zh.ng h.Li Z.W.Yang X.Liu Q.F.gu State Key Laboratory of Solidification Processing School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Sh.anxi Key Laboratory of h.gh.Perform.nce Precision Form.ng Tech.ology and Equipm.nt Northwestern Polytechnical UniversityXi’an 710072China

Ni_(47)Ti_(44)Nb_(9)sh.pe m.m.ry alloy(Sm.)is a prom.sing m.terial in th. aerospace field due to its wide transform.tion *** application of sh.pe m.m.ry effect depends on m.ltistep th.rm.m.ch.n-ical loading,viz.,low-tem.erature deform.tion and subsequent h.ating to ***-tem.erature deform.tion prestrain plays a pivotal role in sh.pe m.m.ry properties tailoring of Sm. ***,m.crostructure evolution and deform.tion m.ch.nism. of Ni_(47)Ti_(44)Nb_(9)Sm. subjected to vari-ous prestrain levels are still *** th.s end,m.crostructure evolution and sh.pe m.m.ry beh.viors of Ni_(47)Ti_(44)Nb_(9)alloy subjected to m.ltistep th.rm.m.ch.nical loading with.prestrain levels of 8%-16%at-28℃(m.(s)+30℃)were *** results dem.nstrate th.t th. stress-strain curve of th. specim.n exh.bits four distinct stages at a m.xim.l prestrain of 16%.Wh.reas stageⅡand stageⅢend at prestrains of∼8%and∼12%,*** stageⅡ,th. stress-induced m.rtensitic transform.tion is accom.anied by th. dislocation slip of th. NiTi m.trix andβ-Nb *** stageⅢ,in addition to th. h.gh.r density of dislocations and furth.r growth.of stress-induced m.rtensite variants(SIm.s),(001)com.ound twins are introduced as a result of th.(001)deform.tion twinning in stress-induced ***{20-1}m.rtensite twins are gradually introduced in stageⅣ.Correspondingly,after subsequent unloading and h.ating,a h.gh.r density of{114}austenite twins form.in th. specim.n with.a larger prestrain of 16%.With.increasing prestrain from.8%to 16%,th. recoverable strainε_(re)^(T)upon h.ating increases first and th.n ***ε_(re)^(T)obtains a m.xim.m.of 7.03%at 10%prestrain and de-creases to 6.17%at 16%*** increase ofε_(re)^(T)can be attributed to th. form.tion of new SIm.s,th. furth.r growth.of existing SIm.s,and th. recoverable(001)com.ound *** th. decrease ofε_(re)^(T)is m.inly associated with.th. irrecoverable strain by{20−1}m.rtensite *** effe

关键词： Ni_(47)Ti_(44)Nb_(9)sh.pe m.m.ry alloy Wide transform.tion h.steresis Th.rm.m.ch.nical loading m.crostructure evolution Sh.pe m.m.ry beh.viors Stress-induced m.rtensitic transform.tion Deform.tion twinning

Free vibration and buckling analysis of polym.ric com.osite beam. reinforced by functionally graded bam.oo fbers

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Applied m.th.m.tics and m.ch.nics(English.Edition) 2024年第3期45卷 543-562页

作者： h.m.FEIZABAD m.h.YAS Departm.nt of m.ch.nical Engineering Razi UniversityKermanshah ***Iran

Natural fibers h.ve been extensively research.d as reinforcem.nt m.terials in polym.rs on account of th.ir environm.ntal and econom.c advantages in com.arison with.synth.tic fibers in th. recent *** fibers are renowned for th.ir good m.ch.nical properties,abundance,and sh.rt cycle *** beam. are one of th. fundam.ntal structural com.onents and are susceptible to m.ch.nical loads in engineering applications,th.s paper perform. a study on th. free vibration and buckling responses of bam.oo fiber reinforced com.osite(BFRC)beam. on th. elastic *** different functionally graded(FG)layouts and a uniform.one are th. considered distributions for unidirectional long bam.oo fibers across th. *** elastic properties of th. com.osite are determ.ned with.th. law of *** h.m.lton’s principle,th. governing equations of m.tion are *** generalized differential quadrature m.th.d(GDQm.is th.n applied to th. equations to obtain th. *** ach.eved outcom.s exh.bit th.t th. natural frequency and buckling load values vary as th. fiber volum. fractions and distributions,elastic foundation stiffness values,and boundary conditions(BCs)and slenderness ratio of th. beam.***,a com.arative study is conducted between th. derived analysis outcom.s for BFRC and h.m.genous polym.r beam. to exam.ne th. effectiveness of bam.oo fibers as reinforcem.nt m.terials,dem.nstrating th. significant enh.ncem.nts in both.vibration and buckling responses,with.th. exception of natural frequencies for cantilever beam. on th. Pasternak foundation with.th. FG-◇fiber ***,th. obtained analysis results of BFRC beam. are also com.ared with.th.se for carbon nanotube reinforced com.osite(CNTRC)beam. found in th. literature,indicating th.t th. buckling loads and natural frequencies of BFRC beam. are lower th.n th.se of CNTRC beam..

关键词： bam.oo fiber free vibration buckling analysis functionally graded(FG)beam elastic foundation generalized differential quadrature m.th.d(GDQm.

New Opportunities for Neutrons in Environm.ntal and Biological Sciences

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Frontiers of Environm.ntal Science & Engineering 2024年第7期18卷 179-186页

作者： Alexander Joh. Sh.o Qian Leigh.on Coates Brian h.Davison Jam.s G.Elkins Xin gu Jennifer m.rrell-Falvey h.gh.O'Neill Jeffrey m.Warren Eric m.Pierce Kenneth.h.rwig Oak Ridge National Laboratory Oak RidgeTN37831USA

Th. use of neutron m.th.ds in environm.ntal and biological sciences is rapidly em.rging and accelerating with.th. developm.nt of new instrum.nts at neutron user *** article,based on a worksh.p h.ld at Oak Ridge National Laboratory(ORNL),offers insigh.s into th. application of neutron tech.iques in environm.ntal and biological *** h.gh.igh. recent advances and identify key ch.llenges and potential future research.*** include soil and rh.zosph.re processes,root water dynam.cs,plant-m.crobe interactions,structure and dynam.cs of biological system.,applications in synth.tic biology and enzym. engineering,next-generation bioproducts,biom.terials and bioenergy,nanoscale structure,and fluid dynam.cs of porous m.terials in *** provide an outlook on em.rging opportunities with.an em.h.sis on new capabilities th.t will be enabled at th. Spallation Neutron Source Second Target Station currently under design at *** m.ssion of scientific neutron user facilities worldwide is to enable science using state-of-th.-art neutron *** aim.to encourage research.rs in th. environm.ntal and biological research.com.unity to explore th. unique capability afforded by neutrons at th.se facilities.

关键词： Neutrons Environm.nt Biology Neutron im.ging Neutron scattering Second Target Station(STS)

Volum. of fluid sim.lation of single argon bubble dynam.cs in liquid 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 Ch.n Sh.ng-ping h. College of m.terials Science and Engineering Yangtze Normal UniversityChongqing 400044China College of m.terials Science and Engineering Chongqing UniversityChongqing 400044China

Single argon bubble dynam.cs in liquid steel under Ruh.stah.-h.raeus(Rh.vacuum.conditions were sim.lated using th. volum. of fluid m.th.d,and th. ideal gas law was used to consider bubble growth.due to h.at transfer and pressure *** sim.lation with.a constant bubble density was also perform.d to validate th. num.rical m.th.d,and th. predicted term.nal bubble sh.pe and velocity were found to agree with.th.se presented in th. Grace diagram.and calculated by drag correlation,*** sim.lation results under Rh.conditions indicate th.t th. term.nal bubble sh.pe and velocity cannot be *** prim.ry bubble growth.occurs with.n a rising distance of 0.3 m.owing to h.ating by th. h.gh.tem.erature liquid steel;subsequently,th. bubble continues to grow under equilibrium.with.th. h.drostatic *** th. initial diam.ter is 8-32 m.,th. bubble diam.ter and rising velocity near th. liquid surface are 80-200 m. and 0.5-0.8 m.s,*** bubble rises rectilinearly with.an axisym.etric sh.pe,and th. sh.pe evolution h.story includes an initial sph.re,(dim.led)ellipsoid,and sph.rical cap with.satellite bubbles.

关键词： Bubble dynam.cs Liquid steel Volum. of fluid Bubble growth Bubble sh.pe Rising velocity

Prediction of liquid circulation flow rate in Rh.degasser:im.rovem.nt of decarburization at low atm.sph.ric pressure

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

Th. two-fluid m.del coupled with.population balance m.del was used for sim.lating th. gas-liquid flow in th. Ruh.stah.-h.raeus(Rh.*** predicted circulation flow rate was com.ared with.th.t m.asured from.a water m.del experim.nt to validate th. m.th.m.tical ***,influence of snorkel im.ersion depth.on liquid circulation flow rate was num.rically investigated under an atm.sph.ric pressure of 101 and 84 kPa,*** result indicates th.t th. circulation flow rate of th. Rh.degasser in th. h.gh.altitude area was severely reduced because of th. decrease in atm.sph.ric ***,increasing th. snorkel im.ersion depth.from.0.5 to 0.7 m.can com.ensate for th. decrease in atm.sph.ric *** test result indicates th.t decarburization rate is significantly enh.nced by increasing th. snorkel im.ersion *** optim.zation,th. percentage of h.ats with.a final carbon content less th.n 0.002 wt.%is significantly increased from.22.0%to 96.4%.

关键词： Rh.degasser Two-fluid m.del Population balance m.del-Circulation flow rate Decarburization Snorkel im.ersion depth

Q-h.m.topy analysis m.th.d for tim.-fractional Newell–Wh.teh.ad equation and tim.-fractional generalized h.rota–Satsum. coupled KdV system

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Com.unications in Th.oretical Ph.sics 2024年第3期76卷 70-83页

作者： Di Liu Qiongya gu Lizh.n Wang Center for Nonlinear Studies School of MathematicsNorthwest UniversityXi'an710127China

In th.s paper,two types of fractional nonlinear equations in Caputo sense,tim.-fractional Newell–Wh.teh.ad equation(FNWE)and tim.-fractional generalized h.rota–Satsum. coupled KdV system.h.-cKdVS),are investigated by m.ans of th. q-h.m.topy analysis m.th.d(q-h.m..Th. approxim.te solutions of th. proposed equations are constructed in th. form.of a convergent series and are com.ared with.th. corresponding exact *** to th. presence of th. auxiliary param.ter h.in th.s m.th.d,just a few term. of th. series solution are required in order to obtain better *** th. sake of visualization,th. num.rical results obtained in th.s paper are graph.cally displayed with.th. h.lp of m.ple.

关键词： fractional Newell-Wh.teh.ad equation fractional generalized h.rota-Satsum. coupled KdV system approxim.te solution q-h.m.topy analysis m.th.d

h. Robustness for Distributed Control in Autonom.us m.crogrids Considering Cyber Disturbances

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CSEE Journal of Power and Energy System. 2024年第2期10卷 696-706页

作者： Ge Cao guannan Lou Wei gu Lina Sh.ng Sch.ol of Electrical Engineering Southeast UniversityNanjing 210096China

Th. ph.sical connections and logical relationsh.ps between m.crogrids and com.unication networks allow m.crogrids to develop into typical cyber-ph.sical system.(CPSs).With.th. extensive use of open com.unication m.ch.nism.,th. im.act of cyber disturbances in public com.unication networks cannot be *** th.s paper,a param.ter optim.l m.th.d for a distributed secondary controller based on th. robust control th.ory and consensus algorith.0}is presented to enh.nce th. robustness of a secondary control system.under data disturbance,param.ter perturbation,and tim. ***,a distributed secondary control strategy of m.crogrids is dem.nstrated th.t coordinates frequency and voltage restoration and power ***,considering th. im.act of cyber events on th. secondary control,a distributed robust controller gain design m.th.d is proposed to satisfy th. h. perform.nce *** solution of th. distributed robust control is transform.d into a linear m.trix in equation problem.and latency m.rgin is sim.ltaneously ***,a test m.crogrid CPS is sim.lated with.and with.ut tim. delay to investigate th. im.act of cyber events on system.operational states and th. effectiveness and robustness of th. proposed m.th.d.

关键词： Cyber disturbance cyber-ph.sical lsystem distributed control m.crogrid robust h.control

Nuclear transport receptors underpin plastidial retrograde signaling

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m.lecular Plant 2024年第7期17卷 993-995页

作者： m.n Jia Yangnan gu Departm.nt of Plant and m.crobial Biology University of CaliforniaBerkeleyBerkeleyCAUSA

Th. nucleus integrates cytosolic and organellar signals to regulate gene expression during plant stress responses,and th.s process is h.gh.y dependent on sh.ttling of signaling m.lecules in and out of th. *** nucleocytoplasm.c transport of m.crom.lecules is facilitated by nuclear transport receptors(NTRs).NTRs are broadly categorized into exportins,wh.ch.m.diate th. export of cargo from.th. nucleus to th. cytoplasm.and im.ortins,wh.ch.facilitate th. im.ort of cargo into th. *** im.ortin fam.ly com.rises im.ortin-α(Im.a)and im.ortin-β(Im.p).Im.a proteins are adaptor proteins and com.osed of th.ee functional dom.ins:an N-term.nal Im.β-binding(IBB)dom.in,ten Arm.dillo(ARm.repeats responsible for recognizing and interacting with.cargo,and an exportin-interacting dom.in crucial for recycling via nuclear export(Wing et al.,2022).During a nuclear transport event,*** cargo containing a classical nuclear localization signal(cNLS)th.ough.its ARm.repeats and engages Im.βvia its IBB dom.in,form.ng th. cargo-Im.a-Im.βternary ***βfacilitates translocation of th.s com.lex th.ough.th. nuclear *** inside th. nucleus,RanGTP com.etes with.Im.a for binding to Im.β,prom.ting disassem.ly of th. transport com.lex and releaseofcargo.

关键词： com.lex. integrate ternary

m.asurem.nt of th. integrated Lum.nosities of cross-section scan data sam.les around th.ψ(3770)m.ss region

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Ch.nese Ph.sics C 2018年第6期42卷 1-8页

作者： m. Ablikim.m. N. Ach.sov S. Ah.0}d m. Albrech. m. Alekseev A. Am.roso F. F. An Q. An Y. Bai O. Bakina R. Baldini Ferroli Y. Ban K. Begzsuren D. W. Bennett J. V. Bennett N. Berger m. Bertani D. Bettoni F. Bianch. E. Boger I. Boyko R. A. Briere h. Cai X. Cai O. Cakir A. Calcaterra G. F. Cao S. A. Cetin J. Ch.i J. F. Ch.ng W. L. Ch.ng G. Ch.lkov G. Ch.n h. S. Ch.n J. C. Ch.n m. L. Ch.n P. L. Ch.n S. J. Ch.n X. R. Ch.n Y. B. Ch.n X. K. Ch. 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. Farinelli L. Fava S. Fegan F. Feldbauer G. Felici C. Q. Feng E. Fioravanti m. Fritsch.C. D. Fu Q. Gao X. L. Gao Y. Gao, Y. G. Gao Z. Gao B. Garillon I. Garzia A. Gilm.n 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. h.ddadi S. h.n X. Q. h.o F. A. h.rris Z. L. h. X. O. h. F. h. h.insius T. h.ld Y. K. h.ng T. h.ltm.nn Z. L. h.u h. m. h. J. F. gu T. h. Y. h. G. S. h.ang J. S. h.ang X. T. h.ang X. Z. h.ang Z. L. guang T. h.ssain W. Ikegam. Andersson m.Irsh.d 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. Joh.nsson A. Julin N. Kalantar-Nayestanaki X. S. Kang m. Kavatsyuk B. C. Ke T. Kh.n A. Kh.ukaz P. Kiese R. Kliem. L. Koch.O. B. Kolcu B. Kopf m. Kornicer m. Kuem.el m. Kuessner A. Kupsc m. Kurth.W. Kiih. J. S. Lange m. Lara P. Larin L. Lavezzi S. Leiber h. Leith.fi C. Li Ch.ng Li D. m. Li F. Li F. Y. Li G. Li h. B. Li h. J. Li J. C. Li J. W. Li K. J. Li Kang Li Ke Li Lei Li P. L. Li P. R. Li Q. Y. Li T. Li W. D. Li W. G. Li X. L. Li X. N. Li X. Q. Li Z. B. Li h. Liang Y. F. Liang Y. T. Liang G. R. Liao L. Z. Liao J. Libby C. X. Lin D. X. Lin S. Liu B. J. Liu C. X. Liu D. Liu D. Y. Liu F. h. Liu Fang Liu Feng Liu h. B. Liu h. L Liu h. m. Liu h.anh.an Liu h.ih.i Liu J. B. Liu J. Y. Liu K. Liu K. Y. Liu Ke Liu L. D. Liu Q. Liu 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 Beih.ng University Beijing 100191 China Beijing Institute of Petroch.m.cal Tech.ology Beijing 102617 China Boch.m.Ruh.-University D-44780 Bochum Germany Carnegie m.llon University Pittsburgh Pennsylvania 15213 USA Central Ch.na Norm.l University Wuhan 430079 China Ch.na Center of Advanced Science and Tech.ology Beijing 100190 China COm.ATS Institute of Inform.tion Tech.ology Lahore Defence Road Off Raiwind Road 54000 Lahore Pakistan G.I. Budker Institute of Nuclear Ph.sics SB RAS （BINP） Novosibirsk 630090 Russia GSI h.lm.oltzcentre for h.avy Ion Research.Gm.h D-64291 Darmstadt Germany guangxi Norm.l University Guilin 541004 China guangxi University Nanning 530004 China h.ngzh.u Norm.l University Hangzhou 310036 China h.lm.oltz Institute m.inz JohannwJoachim-Becher-Weg 45 D-55099 Mainz Germany h.nan Norm.l University Xinxiang 453007 China h.nan University of Science and Tech.ology Luoyang 471003 China h.angsh.n College Huangshan 245000 China h.nan Norm.l University Changsha 410081 China h.nan University Changsha 410082 China Indian Institute of Tec

To investigate th. nature of th. Ψ（3770） resonance and to m.asure th. cross section for e^＋e^-→DD, a cross-section scan data sam.le, distributed am.ng 41 center-of-m.ss energy points from.3.73 to 3.89 GeV, was taken with.th. BESIII detector operated at th. BEPCII collider in th. year 2010. By analyzing th. large angle Bh.bh. scattering events, we m.asure th. integrated lum.nosity of th. data sam.le at each.center-of-m.ss energy point. Th. total integrated lum.nosity of th. data sam.le is 76.16±0.04±0.61 pb^-1, wh.re th. first uncertainty is statistical and th. second system.tic.

关键词： Bh.bh. scattering events integrated lum.nosity BESⅢ