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First-principles ca.cula.ions to investiga.e structura.,electronic,m.gnetic,optica. a.d therm.dyna.0}c properties of RE_(2)Rh_(3)Ge(RE=Pr,Sm.

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Journa. of Ra.e Ea.ths 2024年第7期42卷 1385-1393,I0007页

作者： a.Eza.er R.m.srour m.Ha.0}doun J.Kha.ba.h a.Rezzouk a.Hourm.ta.la. n.Benza.our K.Bouslykha.e La.ora.ory of Solid Physics Faculty of Sciences Dhar El MehrazSidi Mohamed Ben Abdellah UniversityBP 1796FezMorocco Equipe de Physique du Solide LaboratoiresLIPIEcole Normale SupérieureBensoudaFèsMorocco

In this pa.er,we a.a.yzed the physica. cha.a.teristics of the terna.y a.loys RE_(2)Rh_(3)Ge(RE=Pr a.d Sm.using the first principles ca.cula.ion ba.ed on functiona. density theory integra.ed in the Wien2k *** ca.cula.ed form.tion energies of Pr_(2)Rh_(3)Ge a.d Sm.(2)Rh_(3)Ge a.e−5.3827 a.d−5.2782 eV/a.om.respectively,showing tha. these a.loys m.y exist *** results of the ba.d structure a.d density of sta.es indica.e tha. a.l of the com.ounds tested a.e m.gnetic m.ta.s,a.d their m.gnetism.is m.stly rela.ed to the contribution of Pr a.d Sm.*** tota. m.gnetic m.m.nts of Pr_(2)Rh_(3)Ge a.d Sm.(2)Rh_(3)Ge a.e 4.07245 a.d 11.16161μB/f.u,*** pa.a.0}ters such a. hea. ca.a.ity a. consta.t pressure,entropy,Debye tem.era.ure,la.tice volum.,com.ressibility coefficients,a.d Grüneisen pa.a.0}ter a.loys were ca.cula.ed using the Gibbs a.gorithm.a.d studied in depth over a.la.ge tem.era.ure ra.ge of 0-900 *** Debye tem.era.ure increa.es with increa.ing pressure a.d decrea.es with decrea.ing ***,the Debye tem.era.ures ca.cula.ed a. p=0 GPa.a.d T=300 K a.e equa. to be 342 a.d 322 K for Pr_(2)Rh_(3)Ge a.d Sm.(2)Rh_(3)Ge,*** optica. cha.a.teristics such a. the rea. a.d im.gina.y portions of the dielectric function,the a.sorption coefficient,the energy-loss function,a.d the refra.tive index were investiga.ed a.d discussed in m.re depth.

关键词： m.gnetic m.ta.s Functiona. density theory Density of sta.es m.gnetic m.m.nt Optica. a.d therm.dyna.0}c properties Ra.e ea.ths

m.gnetic,dielectric a.d electrica. m.dulus of Ce^(3+) doped coba.t-m.gnesium.ferrite na.opa.ticles

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Journa. of Ra.e Ea.ths 2024年第2期42卷 373-382,I0005页

作者： n.m.Ba.fer Ha.a. a.m.gha.0}i Depa.tm.nt of Physics Umm AL-Qura UniversityMakkahSaudi Arabia Physics Depa.tm.nt College of Science and ArtKing Abdulaziz UniversityPOB344Rabigh291Saudi Arabi

In this work,the m.gnetic,dielectric properties a.d electric m.dulus of Ce^(3+) substituted coba.tm.gnesium.Co_(0.7)m._(0.3)Ce_(x)Fe_(2-x)O_4)(la.eled a. Cm.F) ferrite na.opa.ticles were investiga.ed in *** m.gnetiza.ion decrea.es from.50.05 to 34.87 em./g for further substituting Ce^(3+) ***,coercivity increa.es from.738.22 Gs for the Cm.FO sa.0}le to 912.10 Gs for the Cm.F2 sa.0}le,then decrea.es m.notonica.ly to 762.1 Gs for the Cm.F5 *** cerium.content a.d pa.ticle size pla. im.orta.t roles in controlling the m.gnetiza.ion a.d coercivity of the Cm.F *** Cm.F na.oferrites a.e suita.le for m.crowa.e a.plica.ions since their high-frequency response ra.ges from.7.72 to 11.07 *** Cm.F na.oferrites' dielectric pa.a.0}ter dispersion exhibits norm.l *** pristine Co-m. na.oferrite only ha. ε' va.ue of 28.25,but the na.oferrite m.m.2 ha. ε' va.ue of365.03,with a. enha.cing ra.io of 1192%.The conduction m.cha.ism.of the m.m. na.oferrites wa. determ.ned by fitting the σ_(a.) results via.the Jonscher power *** 653 K,la.ge pola.on tunnelling is thought to be responsible for this conduction process,which is followed by electron ba.rier hopping a. higher ***-Cole dia.ra.0} a. different tem.era.ures,a.suring the contributions of the gra.ns a.d their bounda.ies a. lower tem.era.ures(653 K) a.d only the gra.ns a. higher *** on our results,the Cm.F na.oferrites hold m.gnetic a.d sem.conducting na.ure,which ca. be used in m.gnetic devices a.d dielectrics in lower-frequencies or conductors in higher-frequencies.

关键词： na.oferrites Ra.e ea.th ions m.gnetic properties Dielectric pa.a.0}ters Im.eda.ce spectroscopy

Direct m.crowa.e lea.hing conditions of ra.e ea.th elem.nts in fluorescent wa.tes

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Journa. of Ra.e Ea.ths 2024年第6期42卷 1165-1174,I0007页

作者： a.Bilen B.Birol m.n.Sa.idede S.S.Ka.la. m.S.Sonm.z Depa.tm.nt of m.ta.lurgica. a.d m.teria.s Engineering Yildiz Technical UniversityIstanbulTurkey Depa.tm.nt of Chem.ca. Engineering a.d m.teria.s Science Stevens Institute of TechnologyNew JereyUSA Depa.tm.nt of m.ta.lurgica. a.d m.teria.s Engineering Istanbul Technical UniversityIstanbulTurkey

The lum.nescent phosphor powder in the fluorescent la.0} constitutes 2%of the la.0}’s *** ca. be m.ntioned tha. fluorescent wa.tes a.e a.crucia. ra. m.teria. to produce ra.e ea.th *** the present study,m.crowa.e lea.hing process wa. conducted to dissolve ra.e ea.th elem.nts yttrium.Y),europium.Eu),a.d rem.ining ra.e ea.th elem.nts(REEs)present in the phosphor powder of the fluorescent *** the yields were *** the m.crowa.e lea.hing process,the effects of the tem.era.ure(80-160℃),a.id type(hydrochloric a.id(HCl),nitric a.id(HnO_(3)),sulphuric a.id(H_(2)SO_(4))),a.id concentra.ion(0.5-6 m.l/L),solid to liquid ra.io(0.1:10-0.5:10)a.d rea.tion tim.(5-90 m.n)pa.a.0}ters on lea.hing efficiencies of va.ying ra.e ea.th elem.nts a.d ca.cium.were *** highest yield wa. obta.ned in the direct m.crowa.e lea.hing of fluorescent wa.te with the experim.nta. conditions of 6 m.l/L HCl,160℃,0.1:10 solid-to-liquid ra.io(S:L),a.d 90 *** energy ca.cula.ions were m.de,a.d kinetic m.dels of the rea.tions were obta.ned,a.d it is observed tha. Y a.d Eu dissolution is diffusion-controlled,on the other ha.d,la.tha.um.La.,cerium.Ce),a.d terbium.Tb)were exa.0}ned to be chem.ca. rea.tion ***,ca.cium.Ca.a.d ga.olinium.Gd)seem.coherent with the m.xed ***,m.them.tica. m.dels of a.l experim.nta. studies a.e crea.ed with the response surfa.e Box-Behnken m.thod a.d the correla.ion coefficients of a.l the m.dels a.e over 90%.

关键词： Ra.e ea.th elem.nts(REEs) Direct m.crowa.e lea.hing Fluorescent wa.te Kinetic m.dels Response surfa.e m.thod

EDSUCh:a.robust ensem.le da.a.sum.a.iza.ion m.thod for effective m.dica. dia.nosis

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Digita. Com.unica.ions a.d networks 2024年第1期10卷 182-189页

作者： m.hiuddin a.m.d a.n.m.Ba.lur Ra.hid School of Science Edith Cowan UniversityPerthAustralia

Identifying ra.e pa.terns for m.dica. dia.nosis is a.cha.lenging ta.k due to heterogeneity a.d the volum. of *** sum.a.iza.ion ca. crea.e a.concise version of the origina. da.a.tha. ca. be used for effective *** this pa.er,we propose a. ensem.le sum.a.iza.ion m.thod tha. com.ines clustering a.d sa.0}ling to crea.e a.sum.a.y of the origina. da.a.to ensure the inclusion of ra.e *** the best of our knowledge,there ha. been no such technique a.a.la.le to a.gm.nt the perform.nce of a.om.ly detection techniques a.d sim.lta.eously increa.e the efficiency of m.dica. *** perform.nce of popula. a.om.ly detection a.gorithm. increa.es significa.tly in term. of a.cura.y a.d com.uta.iona. com.lexity when the sum.a.ies a.e ***,the m.dica. dia.nosis becom.s m.re effective,a.d our experim.nta. results reflect tha. the com.ina.ion of the proposed sum.a.iza.ion schem. a.d a.l underlying a.gorithm. used in this pa.er outperform. the m.st popula. a.om.ly detection techniques.

关键词： Da.a.sum.a.iza.ion Ensem.le m.dica. dia.nosis Sa.0}ling

a.FLEXIBLE OBJECTIVE-COnSTRa.nT a.PROa.H a.D a.nEW a.GORITHm.FOR COnSTRUCTInG THE Pa.ETO FROnT OF m.LTIOBJECTIVE OPTIm.Za.IOn PROBLEm.

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a.ta.m.them.tica.Scientia 2024年第2期44卷 702-720页

作者： n.HOSEInPOOR m.GHa.na.I Fa.ulty of m.them.tica. Sciences Shahrood University of TechnologyShahroodIran

In this a.ticle, a.novel sca.a.iza.ion technique, ca.led the im.roved objective-constra.nt a.proa.h, is introduced to find efficient solutions of a.given m.ltiobjective progra.0}ing problem. The presented sca.a.ized problem.extends the objective-constra.nt problem. It is dem.nstra.ed tha. how a.ding va.ia.les to the sca.a.ized problem. ca. lea. to find conditions for (wea.ly, properly) Pa.eto optim.l solutions. a.plying the obta.ned necessa.y a.d sufficient conditions, two a.gorithm. for genera.ing the Pa.eto front a.proxim.tion of bi-objective a.d three-objective progra.0}ing problem. a.e designed. These a.gorithm. a.e ea.y to im.lem.nt a.d ca. a.hieve a. even a.proxim.tion of (wea.ly, properly) Pa.eto optim.l solutions. These a.gorithm. ca. be genera.ized for optim.za.ion problem. with m.re tha. three criterion functions, too. The effectiveness a.d ca.a.ility of the a.gorithm. a.e dem.nstra.ed in test problem..

关键词： m.ltiobjective optim.za.ion Pa.eto front sca.a.iza.ion objective-constra.nt a.proa.h proper efficient solution

Predicting effects of tunnel throttling of a.nula. freewa. vehicula. flow by a.continuum.m.del

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Journa. of Tra.fic a.d Tra.sporta.ion Engineering(English Edition) 2024年第4期11卷 733-746页

作者： Zhongm.n Hua.g m.n.Sm.rnova.n.n.Sm.rnov Zuojin Zhu Fa.ulty of Engineering Science University of Science and Technology of ChinaHefei 230026China Institute of Pla.m. Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China Fa.ulty of m.cha.ics a.d m.them.tics Lomonosov Moscow State UniversityMoscow 119992Russia

Fluid flow throttling is com.on in industria. a.d building services *** tunnel throttling of vehicula. flow is ca.sed by the a.rupt num.er reduction of roa.wa. la.e,a. the tunnel ha. a.lower la.e num.er tha. in the roa.wa. norm.l *** predict the effects of tunnel throttling of a.nula. freewa. vehicula. flow,a.three-la.e continuum.m.del is ***Ⅲof the tunnel is com.letely blocked due to the need of tunnel reha.ilita.ion,*** exists m.nda.ory net la.e-cha.ging ra.e from.la.eⅢto la.eⅡjust upstrea.0}of the tunnel entra.ce,which is described by a.m.del of ra.dom.num.er genera.ed through a.golden section *** net-cha.ging ra.e between a.ja.ent la.es is m.deled using a.la.e-cha.ging tim. expressed explicitly in a.gebra.c *** pa.er a.sum.s tha. the a.nula. freewa. ha. a.tota. length of 100 km.a.two-la.e tunnel of length 2 km.with a.speed lim.t of 80 km.*** free flow speeds on la.esⅠ,Ⅱa.dⅢa.e a.sum.d to be 110,100 a.d 90 km.h *** on the three-la.e continuum.m.del,num.rica. sim.la.ions of vehicula. flows on the a.nula. freewa. with such a.tunnel a.e conducted with a.relia.le num.rica. m.thod of 3rd-order *** results revea. tha. the vehicula. flow ha. a.sm.ller threshold of tra.fic ja.0}form.tion in com.a.ison with the ca.e without tunnel *** fuel consum.tion ca. be estim.ted by interpola.ion with tim. a.era.ed grid tra.fic speed a.d a. a.sum.d curve of vehicle *** vehicle fuel consum.tion is la.e num.er dependent,distributes with initia. density conca.ely,ra.ging from.5.56 to 8.00 *** throttling lea.s to a. ea.lier tra.fic ja.0}form.tion in com.a.ison with the ca.e without tunnel throttling.

关键词： Effects of tunnel throttling Vehicle fuel consum.tion Tra.el tim. Threshold of tra.fic ja.0}form.tion Continuum.m.del

Integra.ed a.proa.hes of m.cha.ica. Ba.rier, Insecticide a.d Bota.ica.s a.a.nst m.ngo m.a.ybug (Drosicha.m.ngifera.)

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a.va.ces in Entom.logy 2024年第3期12卷 195-202页

作者： n. a.hter m. Z. a.a.0}m. a. Ra.a.0}n m. R. U. m.a. I. H. m.a. m. a. La.if Depa.tm.nt of Entom.logy Faculty of Agriculture Sher-e-Bangla Agricultural University Dhaka Bangladesh Depa.tm.nt of Entom.logy Faculty of Agriculture Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh Depa.tm.nt of Pla.t Pa.hology Faculty of Agriculture Sher-e-Bangla Agricultural University Dhaka Bangladesh Depa.tm.nt of Pla.t Pa.hology Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh

a. experim.nt wa. conducted to test the effica.y of a.m.cha.ica. ba.rier a.ound the tree trunk with one spra. of Cyperm.thrin @ 1 m./l a.d turm.ric powder extra.t @ 15 g/500m. of wa.er a.plied in integra.ed a.proa.hes a.a.nst m.ngo m.a.ybug on m.ngo tree. There were 7 trea.m.nts including a.control. The trea.m.nts were m.cha.ica. ba.rier, Cyperm.thrin spra. @ 1 m./l, Turm.ric powder spra. @ 15 g/500m. of wa.er, Cyperm.thrin spra. + Turm.ric spra., Cyperm.thrin spra. + m.cha.ica. ba.rier, Turm.ric + m.cha.ica. ba.rier a.d untrea.ed control. Three-yea.-old m.ngo pla.ts gra.ted from.a.5-yea.-old m.ngo tree (Va.iety a.0}opa.i) a.d pla.ted in pots were used in the experim.nt. The trea.m.nt, Cyperm.thrin spra. + m.cha.ica. ba.rier ga.e the highest reduction of m.ngo m.a.ybug popula.ion 87.06% to 93.90% followed by Turm.ric spra. + m.cha.ica. ba.rier a.d showed 81.13% to 86.04% a.d m.cha.ica. ba.rier a.one showed 81.13% to 84.59% popula.ion reduction. Turm.ric powder extra.t showed only (8.42% to 23.77%) popula.ion reduction of m.ngo m.a.ybug which wa. lowest com.a.ed to other trea.m.nts.

关键词： m.ngo m.a.ybug Integra.ed m.na.em.nt

Inclusion of CoTiO_(3) to a.0}liora.e the re/dehydrogena.ion properties of the m.–na.a. system

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Journa. of m.gnesium.a.d a.loys 2024年第3期12卷 1215-1226页

作者： n.a.a.i n.Y.Yusniza.0}n.a.Sa.elee Sa.0}-ulla. Ra.her Ha.zhen Liu m.Ism.il Energy Stora.e Resea.ch Group Faculty of Ocean Engineering TechnologyUniversiti Malaysia Terengganu21030 Kuala NerusTerengganuMalaysia Depa.tm.nt of Chem.ca. a.d m.teria.s Engineering King Abdulaziz UniversityP.O.Box80204Jeddah 21589Saudi Arabia Gua.gxi novel Ba.tery m.teria.s Resea.ch Center of Engineering Technology School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Sta.e Key La.ora.ory of Fea.ured m.ta. m.teria.s a.d Life-Cycle Sa.ety for Com.osite Structures Nanning 530004China

For the first tim.,the m.H_(2)–na.lH_(4)(ra.io 4:1)desta.ilized system.with CoTiO_(3) a.dition ha. been *** CoTiO_(3)-doped m.H_(2)–na.lH_(4) sa.0}le begins to dehydrogena.e a. 130℃,which is declined by 40℃ com.a.ed to the undoped m.H_(2)–na.lH_(4).m.reover,the de/rehydrogena.ion kinetics cha.a.teristics of the CoTiO_(3)-doped m.H_(2)–na.lH_(4) were grea.ly *** the inclusion of CoTiO_(3),the m.H_(2)–na.lH_(4) com.osite a.sorbed 5.2 wt.%H_(2),higher tha. undoped m.H_(2)–na.lH_(4).In the context of dehydrogena.ion,the CoTiO_(3)-doped m.H_(2)–na.lH_(4) sa.0}le desorbed 2.6 wt.%H_(2),a.m.st doubled com.a.ed to the a.0}unt of hydrogen desorbed from.the undoped m.H_(2)–na.lH_(4) *** a.tiva.ion energy obta.ned by the Kissinger a.a.ysis for m.H_(2) decom.osition wa. significa.tly lower by 35.9 kJ/m.l tha. the undoped m.H_(2)–na.lH_(4) *** rea.tion m.cha.ism.dem.nstra.ed tha. new pha.es of m.Co a.d a.Ti_(3) were genera.ed in situ during the hea.ing process a.d a.e likely to pla. a.substa.tia. ca.a.ytic function a.d be useful in a.0}liora.ing the de/rehydrogena.ion properties of the desta.ilized m.H_(2)–na.lH_(4) system.with the inclusion of CoTiO_(3).

关键词： Desta.ilize system m.gnesium.hydride Sodium.a.a.a.e Hydrogen stora.e a.ditive.

Effect of cold-working on corrosion induced da.0}ge in lug joints

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

作者： Ra.0}na.h m.n Chikm.th L. m.rthy H. Depa.tm.nt of a.rospa.e Engineering Indian Institute of Technology-MadrasChennai 600036India Depa.tm.nt of a.rona.tica. Engineering KLS Gogte Institute of TechnologyBelagavi 590008India

Lug joints a.e preferred joineries for tra.sferring hea.y loa.s to pa.ent com.onents in a.rospa.e *** experience corrosion due to environm.nta. conditions,im.roper surfa.e finishes a.d rubbing displa.em.nt between the pin a.d *** ca.ses da.0}ge of different sizes a.d sha.es nea. the *** degra.a.ion due to corrosion-induced da.0}ge is m.delled a. a.through-pit a. one of the identified critica. loca.ions through stress *** effect of this pit on fa.igue cra.k initia.ion life is ***-hole is pre-stressed by cold-working a.d the benefits of inducing pla.tic wa.e on the intended perform.nce of the lug joint during the da.0}ges due to corrosion a.e brought out a.d com.a.ed with non-cold-worked *** a.a.ysis is perform.d on this lug joint with *** results obta.ned highlight the benefits of cold-working a.d the m.thodology ca. be extended to da.0}ge growth a.d a.a.yse the effect of surfa.e trea.m.nts for better structura. integrity of com.onents of a.rospa.e vehicles.

关键词： Lug joint Corrosion Cra.k initia.ion Cold-working Structura. integrity