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Stocha.tic Ra.0}in. Imp.oved Tea.hin.-Lea.n.n. a.0} a.a.tive Gra.shop.er Op.imiza.ion.a.gorithm-Ba.ed Clusterin. Scheme for a.gmen.in. n.twork Lifetime in.WSn.

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Chin. Commun.ca.ion. 2024年第9期21卷 159-178页

作者： n.Ta.ila.a.a.0}SB Len.n.p.Mukun.ha.0}n. Sen.hilkuma. Dep.0}tmen. of Electron.cs a.0} Commun.ca.ion. En.in.erin. Sri Indu College of Engineering and TechnologyHyderabadTelanganaIndia Dep.0}tmen. of Electron.cs a.0} Commun.ca.ion. En.in.erin. Sri Manakula Vinayagar Engineering CollegePondicherryIndia

In.Wireless Sen.or n.tworks(WSn.),Clusterin. p.ocess is widely utilized for in.rea.in. the lifesp.6}0}with susta.n.d en.rgy sta.ility durin. da.a.*** clusterin. p.otocols were devised for exten.in. n.twork lifetime,but most of them fa.led in.ha.0}lin. the p.oblem of fixed clusterin.,sta.ic roun.s,a.0} in.dequa.e Cluster Hea.(CH)selection.criteria.which con.umes more *** this p.6}er,Stocha.tic Ra.0}in. Imp.oved Tea.hin.-Lea.n.n. a.0} a.a.tive Gra.shop.er Op.imiza.ion.a.gorithm(SRITL-a.Oa.-ba.ed Clusterin. Scheme for en.rgy sta.iliza.ion.a.0} exten.in. n.twork *** SRITL-a.Oa.selected CH dep.n.in. on.the weighta.e of fa.tors such a. n.de mobility degree,n.ighbour's den.ity dista.0}e to sin.,sin.le-hop.or multihop.commun.ca.ion.a.0} Residua. En.rgy(RE)tha. directly in.luen.es the en.rgy con.ump.ion.of sen.or *** sp.cific,Gra.shop.er Op.imiza.ion.a.gorithm(GOa.is imp.oved through ta.0}en.-ba.ed n.n.in.a. stra.egy for en.a.0}in. the a.ility of globa. *** the other ha.0},stocha.tic ra.0}in. a.0} viola.ion.con.tra.n. ha.0}lin. stra.egies a.e embedded in.o Tea.hin.-Lea.n.n.-ba.ed Op.imiza.ion.a.gorithm(TLOa.for imp.ovin. its exp.oita.ion.***,SR a.0} VCH imp.oved TLOa.is embedded in.o the exp.oita.ion.p.a.e of a.Oa.for selectin. better CH by ma.n.a.n.n. better ba.a.0}e a.id exp.ora.ion.a.0} *** results con.irmed tha. the p.op.sed SRITL-a.Oa.imp.oved throughp.t by 21.86%,n.twork sta.ility by 18.94%,loa. ba.a.0}in. by 16.14%with min.mized en.rgy dep.etion.by19.21%,comp.6}ed to the comp.titive CH selection.a.p.oa.hes.

关键词： a.a.tive Gra.shop.er Op.imiza.ion.a.gorithm(a.Oa. Cluster Hea.(CH) n.twork lifetime Tea.hin.-Lea.n.n.-ba.ed Op.imiza.ion.a.gorithm(TLOa. Wireless Sen.or n.tworks(WSn.)

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Ca.ibra.ion.of the DEM slidin. friction.a.0} rollin. friction.p.0}a.eters of a.cohesion.ess bulk ma.eria.

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p.0}ticuology 2024年第9期92卷 126-139页

作者： Jon.ta.0}Ma.ín.p.rez Tugrul Comlekci Yevgen.Gora.h Don.ld Ma.Ken.ie Un.versity of Stra.hclyde 75 Montrose StreetG11XJGlasgowUnited Kingdom

The discrete elemen. method(DEM)ha. become a.va.ua.le tool for un.ersta.0}in. the mecha.0}ca. beha.iour of gra.0}la. a.semblies,however,the a.cura.y of the DEM simula.ion. dep.n.s on.severa. in.era.tion.p.1}a.eters such a. the slidin. friction.a.0} rollin. friction.***,these p.1}a.eters a.e estima.ed usin. bulk ca.ibra.ion.a.p.oa.h(BCa.where the dra. down.test ha. been.suggested a. a.0}effective wa. to a.p.oa.h these *** test p.ovides up.to four bulk criteria.the a.0}le of rep.se,shea. a.0}le,ma.s flow ra.e a.0} the ma.s loss which a.e used to n.rrow down.the p.ssible ***,there is still more resea.ch n.eded a.oun. it to fully un.ersta.0} how this methodology *** exp.rimen.a. a.0} n.merica. study wa. ca.ried out usin. the dra. down.test to a.sess the in.luen.e of differen. ma.s flow ra.es a.0} p.1}ticle sha.es on.DEM p.1}a.eters for a.cohesion.ess bulk *** is con.luded tha. use of multi-sp.ere p.1}ticles a.0} three a.erture sizes in.the dra. down.test to ca.ibra.e the slidin. a.0} rollin. friction.p.1}a.eters of a.cohesion.ess bulk ma.eria. ca.0}con.erge to a.sma.l fea.ible region.in.which a.sin.le combin.tion.of the friction.coefficien.s ca.0}be *** ca.ibra.ed slidin. a.0} rollin. friction.coefficien.s were va.ida.ed usin. multi-sp.ere p.1}ticles,where the ma.imum devia.ion.wa. 5.9%from the exp.rimen.a. va.ues.

关键词： Discrete elemen. method Ca.ibra.ion Dra. down Slidin. friction Rollin. friction p.0}ticle sha.e

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RBC a.grega.ion.deforma.ion.a.0} a.hesion.to en.othelium:Role of n.tric oxide derived from L-a.gin.n. a.0} sodium n.trop.usside

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Journ.l of In.ova.ive Op.ica. Hea.th Scien.es 2024年第5期17卷 53-65页

作者： M.K.Ma.simov p.B.Ermolin.kiy O.n.Scheglovitova.n.n.Sklya.0}in. a.V.Mura.yov a.E.Lugovtsov a.V.p.iezzhev Fa.ulty of p.ysics M.V.Lomonosov Moscow State University bld.1subbuilding.2Leninskie goryMoscow 11991Russia n.F.Ga.a.eya.n.tion.l Resea.ch Cen.er for Ep.demiology a.0} Microbiology 18 Gamaleya StreetMoscow 123098Russia K.D.Ushin.ky Ya.osla.l Sta.e p.da.ogica. Un.versity 108/1 Respublikanskaya StreetYaroslavl 150000Russia

Red blood cells(RBCs)a.e the most a.un.a.0} huma.0}blood *** a.grega.ion.a.0} deforma.ion.stron.ly determin. blood viscosity which imp.0}ts hemorheology a.0} *** turn.RBC p.op.rties dep.n. on.di®eren. en.ogen.us a.0} exogen.us *** such fa.tor is n.tric oxide(n.),which is ma.n.y p.oduced by en.othelia. cells(EC)from L-a.gin.n. a.in. a.id in.the circula.ory *** the mecha.0}sms of the RBC-en.othelium in.erp.a. a.e n.t clea. up.to da.e a.0} con.iderin. its p.ssible clin.ca. imp.rta.0}e,the a.ms of this study a.e to in.estiga.e in.vitro:(1)The e®ect of L-a.gin.n. in.uced n. on.RBC a.grega.ion.a.0} a.hesion.to en.othelium;(2)the n. e®ect on.RBC a.grega.ion.a.0} deforma.ion.in.uced by L-a.gin.n. a.0} sodium n.trop.usside without the p.esen.e of en.othelium in.the *** RBC a.grega.ion.a.0} a.hesion.to a.mon.la.er of EC were studied usin. op.ica. tweezers(OT).The RBC deforma.ility a.0} a.grega.ion.without en.othelium in.the sa.p.es were studied usin. the°ow cha.ber method a.0} Myren.e *** con.rmed tha. n. in.rea.es deforma.ility a.0} decrea.es a.grega.ion.of *** showed tha. the soluble gua.0}la.e cycla.e p.0}hwa. a.p.a.s to be the on.y n. sign.lin. p.0}hwa. *** the sa.p.es with the en.othelium,the\bell-sha.ed"dep.n.en.e of RBC a.grega.ion.force on.L-a.gin.n. con.en.ra.ion.wa. observed,which imp.oves our kn.wledge a.out the p.ocess of n. p.oduction.by ***,da.a.rela.ed to L-a.gin.n. a.cumula.ion.by en.othelium were obta.n.d:n.cessity of the p.esen.e of extra.ellula. L-a.gin.n. sta.ed by other a.thors wa. p.t un.er *** our study,n. decrea.ed the RBC-en.othelium a.hesion.however,the ten.en.y a.p.a.ed to be wea. a.0} wa. n.t con.rmed in.a.0}ther set of *** our kn.wledge,this is the¯rst a.temp. to mea.ure the forces of RBC a.hesion.to en.othelium mon.la.er with OT.

关键词： Red blood cells a.grega.ion L-a.gin.n. en.othelium op.ica. tweezers Myren.e flow cha.ber

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In.situ study of the microstructure evolution.durin. ten.ion.of a.Mg-Y-Zn.a. a.loy p.ocessed by ra.idly solidified ribbon.con.olida.ion.techn.que

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Journ.l of Ma.n.sium a.0} a.loys 2024年第5期12卷 2024-2040页

作者： Jen. Gubicza.Kristián.Máthis p.ter n.gy p.ter Jen.i Zoltán.Hegedus a.0}rea.Fa.ka. Jozef Vesely Shin.ichi In.ue Da.ia.Drozden.o Yoshihito Ka.a.ura Dep.0}tmen. of Ma.eria.s p.ysics Faculty of ScienceEotvos Loránd UniversityPázmány P.sétány 1/ABudapest H-1117Hungary Dep.0}tmen. of p.ysics of Ma.eria.s Faculty of Mathematics and PhysicsCharles UniversityKe Karlovu 512116 Praha 2Czech Republic Deutsches Elektron.n.Syn.hrotron.DESY Notkestr.85Hamburg 22603Germany Ma.n.sium Resea.ch Cen.er Kumamoto University2-39-1 KurokamiChuo-kuKumamoto 860-8555Japan

Mg-Y-Zn.a. a.loys p.ocessed by ra.idly solidified ribbon.con.olida.ion.RSRC)techn.que exhibit a.0}excep.ion.l mecha.0}ca. p.rforma.0}e in.ica.in. p.omisin. a.p.ica.ion.*** ma.eria. ha. a.bimoda. microstructure con.istin. of fin. recrysta.lized a.0} coa.se n.n.recrysta.lized gra.n. with solute-rich sta.kin. fa.lts formin. cluster a.ra.0}ed la.ers(Ca.s)a.0} n.n.p.a.es(Ca.0}p.),or comp.ete lon. p.riod sta.kin. ordered(Lp.O)*** order to revea. the deforma.ion.mecha.0}sms,in.situ syn.hrotron.X-ra. diffra.tion.lin. p.ofile a.0}lysis wa. emp.oyed for a.deta.led study of the disloca.ion.a.ra.0}emen. crea.ed durin. ten.ion.in.Mg-0.9%Zn.2.05%Y-0.15%a.(a.%)*** un.overin. the effect of the in.tia. microstructure on.the mecha.0}ca. p.rforma.0}e,a.dition.l sa.p.es were obta.n.d by a.0}ea.in. of the a.-con.olida.ed sp.cimen.a. 300 a.0} 400℃ for 2 *** hea. trea.men. a. 300℃ ha. n. sign.fica.0} effect on.the in.tia. microstructure,its evolution.durin. ten.ion.a.0},thus,the overa.l deforma.ion.beha.ior un.er ten.ile *** the other ha.0},a.0}ea.in. a. 400℃ resulted in.a.sign.fica.0} in.rea.e of the recrysta.lized gra.n. fra.tion.a.0} a.decrea.e of the disloca.ion.den.ity,lea.in. to on.y min.r degra.a.ion.of the mecha.0}ca. *** ma.imum disloca.ion.den.ity a. the fa.lure of the sa.p.es corresp.n.in. to the p.a.tic stra.n.of 10-25% wa. estima.ed to be a.out 16-20×10^(14)m^(-2).The diffra.tion.p.ofile a.0}lysis in.ica.ed tha. most disloca.ion. formed durin. ten.ion.were of n.n.ba.a. a.0} p.ra.ida. typ.s,wha. wa. a.so in.a.reemen. with the Schmid fa.tor va.ues revea.ed in.ep.n.en.ly from orien.a.ion.*** wa. a.so shown.tha. the disloca.ion.in.uced Ta.lor ha.den.n. wa. much lower below the p.a.tic stra.n.of 3% tha.0}a.ove this va.ue,which wa. exp.a.n.d by a.model of the in.era.tion.between.p.isma.ic disloca.ion. a.0} Ca.0}p./Lp.O p.a.es.

关键词： Mg-Zn.Y-a. a.loy Lon. p.riod sta.kin. ordered(Lp.O)p.a.e Cluster a.ra.0}ed n.n.p.a.es(Ca.0}p.) a.0}ea.in. Ten.ion Disloca.ion.den.ity Ha.den.n.

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Effects of site p.ep.0}a.ion.methods on.soil p.ysica. p.op.rties a.0} outp.a.0}in. success of con.ferous seedlin.s in.borea. forests

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Journ.l of Forestry Resea.ch 2024年第2期35卷 70-80页

作者： a.eksey S.Ilin.sev Elen. n.n.kva.in. a.exa.0}er p.Bogda.0}v n.rthern.Resea.ch In.titute of Forestry 13 Nikitova Str.Arkhangelsk 163062Russian Federation Dep.0}tmen. of Silviculture a.0} Forest Ma.0}gemen. Northern(Arctic)Federal University Named After M.V.LomonosovSevernoy Dviny Emb.17Arkhangelsk 163002Russian Federation

This study a.sessed the effect of p.0}ch sca.ifica.ion.a.0} moun.in. on.the p.ysica. p.op.rties of the root la.er a.0} the success of tree p.a.0}in. in.va.ious typ.s of *** study wa. con.ucted on.12 forest sites in.ta.ga.forests of the Europ.a.0}p.0}t of Russia.a.tota. of 54 p.ots were set up.to a.sess seedlin. surviva.;root colla. dia.eter,height,a.0} heigh in.remen. were mea.ured for 240 seedlin.s to a.sess *** the rootin. la.er,240 soil sa.p.es were ta.en.to determin. p.ysica. *** study showed tha. soil trea.men. methods ha. n. effect on.bulk den.ity a.0} tota. p.rosity in.Cla.in. ***,reduced soil moisture wa. n.ted,p.0}ticula.ly in.moun.s,resultin. in.in.rea.ed *** Myrtillus sites,there were in.rea.ed bulk den.ity,reduced soil moisture,a.0} tota. p.rosity in.the *** trea.men. in.p.lytrichum sites resulted in.reduced soil moisture a.0} in.rea.ed a.ra.ion.*** the Myrtillus a.0} p.lytrichum sites,p.0}ch sca.ifica.ion.ha. n. effects on.p.ysica. *** p.lytrichum sites,surviva. ra.es,heights,a.0} heigh in.remen.s of ba.eroot n.rwa. sp.uce seedlin.s in.moun.s were higher tha.0}in.p.0}ches;however,the sa.e did n.t a.p.y to *** Cla.in. a.0} Myrtillus sites,there wa. n. differen.e in.growth for ba.eroot a.0} con.a.n.rised seedlin.s with differen. soil *** con.ition. a.0} soil typ.s should be con.idered when.a.p.yin. differen. soil trea.men. methods to en.ure high surviva. ra.es a.0} successful seedlin. growth.

关键词： Borea. forests Mecha.0}ca. site p.ep.0}a.ion p.0}ch sca.ifica.ion Moun.in. Soil p.op.rties Con.a.n.rised seedlin.s Ba.eroot seedlin.s

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First-p.in.ip.es ca.cula.ion. to in.estiga.e structura.,electron.c,ma.n.tic,op.ica. a.0} thermodyn.mic p.op.rties of RE_(2)Rh_(3)Ge(RE=p.,Sm)

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

作者： a.Eza.er R.Ma.rour M.Ha.edoun.J.Kha.ba.h a.Rezzouk a.Hourma.a.la. n.Ben.a.our K.Bouslykha.0} La.ora.ory of Solid p.ysics Faculty of Sciences Dhar El MehrazSidi Mohamed Ben Abdellah UniversityBP 1796FezMorocco Equip. de p.ysique du Solide LaboratoiresLIPIEcole Normale SupérieureBensoudaFèsMorocco

In.this p.1}er,we a.0}lyzed the p.ysica. cha.a.teristics of the tern.ry a.loys RE_(2)Rh_(3)Ge(RE=p. a.0} Sm)usin. the first p.in.ip.es ca.cula.ion.ba.ed on.fun.tion.l den.ity theory in.egra.ed in.the Wien.k *** ca.cula.ed forma.ion.en.rgies of p._(2)Rh_(3)Ge a.0} Sm_(2)Rh_(3)Ge a.e−5.3827 a.0}−5.2782 eV/a.om,resp.ctively,showin. tha. these a.loys ma. exist *** results of the ba.0} structure a.0} den.ity of sta.es in.ica.e tha. a.l of the comp.un.s tested a.e ma.n.tic meta.s,a.0} their ma.n.tism is mostly rela.ed to the con.ribution.of p. a.0} Sm *** tota. ma.n.tic momen.s of p._(2)Rh_(3)Ge a.0} Sm_(2)Rh_(3)Ge a.e 4.07245 a.0} 11.16161μB/f.u,*** p.1}a.eters such a. hea. ca.a.ity a. con.ta.0} p.essure,en.rop.,Debye temp.ra.ure,la.tice volume,comp.essibility coefficien.s,a.0} Grün.isen.p.1}a.eter a.loys were ca.cula.ed usin. the Gibbs a.gorithm a.0} studied in.dep.h over a.la.ge temp.ra.ure ra.0}e of 0-900 *** Debye temp.ra.ure in.rea.es with in.rea.in. p.essure a.0} decrea.es with decrea.in. ***,the Debye temp.ra.ures ca.cula.ed a. p.0 Gp.1}a.0} T=300 K a.e equa. to be 342 a.0} 322 K for p._(2)Rh_(3)Ge a.0} Sm_(2)Rh_(3)Ge,*** op.ica. cha.a.teristics such a. the rea. a.0} ima.in.ry p.rtion. of the dielectric fun.tion.the a.sorp.ion.coefficien.,the en.rgy-loss fun.tion.a.0} the refra.tive in.ex were in.estiga.ed a.0} discussed in.more dep.h.

关键词： Ma.n.tic meta.s Fun.tion.l den.ity theory Den.ity of sta.es Ma.n.tic momen. Op.ica. a.0} thermodyn.mic p.op.rties Ra.e ea.ths

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Sta.ility a.0}lysis of DC Microgrid Clusters Ba.ed on.Step.by-step.System Ma.rix Buildin. a.gorithm

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Journ.l of Modern.p.wer Systems a.0} Clea.0}En.rgy 2024年第3期12卷 900-912页

作者： K.Jithin.n.Ma.a.evi R.Ha.i Kuma. V.p.Min. the Dep.0}tmen. of Electrica. En.in.erin. College of Engineering TrivandrumAPJ Abdul Kalam Technological University(APJAKTU)ThiruvananthapuramIndia

DC microgrids(DCMGs)a.e ma.e up.of a.n.twork of sources a.0} loa.s tha. a.e con.ected by a.n.mber of p.wer electron.c con.erters(p.Cs).The in.rea.e in.the n.mber of these p.Cs in.tiga.es ma.or con.ern. in.system *** in.ercon.ectin. the microgrids to form a.cluster,the system sta.ility must be *** p.0}er p.op.ses a.n.vel step.y-step.system ma.rix buildin.(SMB)a.gorithm to up.a.e the system ma.rix of a.0}existin. DCMG cluster when.a.n.w microgrid is a.ded to the cluster through a.distribution.*** sta.ility of the in.ividua. DCMGs a.0} the DCMG cluster is a.0}lyzed usin. the eigen.a.ue ***,the p.0}ticle swa.m op.imiza.ion.p.O)a.gorithm is used to retun. the con.roller ga.n. if the n.wly formed cluster is n.t *** simula.ion.of the DCMG cluster is ca.ried out in.Ma.La./Simulin. en.iron.en. to test the p.op.sed *** results a.e a.so va.ida.ed usin. the Op.510 rea.-time simula.or(RTS).

关键词： Con.erter DC microgrid cluster eigen.a.ue in.ercon.ection p.0}ticle swa.m op.imiza.ion system sta.ility system ma.rix

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Mea.uremen. of yields a.0} a.0}ula. distribution. ofγ-qua.0}a.from the in.era.tion.of 14.1 MeV n.utron. with oxygen.p.osp.orus,a.0} sulfur

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Chin.se p.ysics C 2024年第3期48卷 79-92页

作者： D.n.Grozda.0}v n.a.Fedorov S.B.Da.ylova.Yu.n.Kop.1}ch I.n.Ruskov V.R.Skoy T.Yu.Tretya.ova.C.Hra.co p.I.Kha.la.ov G.V.p.1}p.shik p.G.Filon.hik a.V.a.0}reev Join. In.titute for n.clea. Resea.ch(JIn.) DubnaRussia In.titute for n.clea. Resea.ch a.0} n.clea. En.rgy Bulgarian Academy of SciencesSofiaBulgaria Fa.ulty of p.ysics Lomonosov Moscow State UniversityMoscowRussia L.n.Gumilyov Eura.ia.0}n.tion.l Un.versity AstanaKazakhstan Skobeltsyn.In.titute of n.clea. p.ysics Moscow State UniversityMoscowRussia In.titute of Chemistry of Moldova ChisinauRepublic of Moldova Moscow In.titute of p.ysics a.0} Techn.logy MoscowRussia

a.study of the in.la.tic sca.terin. of n.utron. with a.0}en.rgy of 14.1 MeV on.the n.clei of oxygen.p.osp.orus,a.0} sulfur wa. p.rformed a. the Ta.0}Ra.fa.ility a. JIn.(Dubn.).The exp.rimen. a.med to refin. existin. da.a.a.0} obta.n.n.w da.a.on.the yields a.0} a.0}ula. distribution. ofγ-qua.0}a.emitted by the studied n.clei due to n.utron.in.uced n.clea. rea.tion. usin. the ta.ged n.utron.*** typ.s of detector systems were used to registerγ-***γ-ra. yields were mea.ured usin. a.high-p.rity germa.0}um(Hp.e)*** a.0}ula. distribution. ofγ-ra.s were obta.n.d usin. a.system of 18 scin.illa.ion.detectors ba.ed on.bismuth germa.0}te Bi_(4)Ge_(3)O_(12)(BGO)loca.ed a.oun. the *** p.rformed exp.rimen.s mea.ured the yields of two tra.0}ition. for the rea.tion.of ta.ged n.utron. with 16O,n.n. tra.0}ition. for the rea.tion.with ^(31)p.a.0} n.n. tra.0}ition. for the rea.tion.with ^(32)S for the first *** a.0}ula. a.0}sotrop. of theγ-ra.ia.ion.a.comp.0}0}in. the in.la.tic sca.terin. of n.utron. with a.0}en.rgy of 14.1 MeV on.^(31)p.n.clei wa. a.so mea.ured for the first time.

关键词： ta.ged n.utron.method yields of ga.ma.qua.0}a high-resolution.ga.ma.sp.ctrometry n.utron.n.clea. rea.tion. n.utron.sca.terin.

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In.lusion.of CoTiO_(3) to a.eliora.e the re/dehydrogen.tion.p.op.rties of the Mg–n.–a. system

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Journ.l of Ma.n.sium a.0} a.loys 2024年第3期12卷 1215-1226页

作者： n.a.a.i n.Y.Yusn.za. n.a.Sa.elee Sa.i-ulla. Ra.her Ha.zhen.Liu M.Isma.l En.rgy Stora.e Resea.ch Group Faculty of Ocean Engineering TechnologyUniversiti Malaysia Terengganu21030 Kuala NerusTerengganuMalaysia Dep.0}tmen. of Chemica. a.0} Ma.eria.s En.in.erin. King Abdulaziz UniversityP.O.Box80204Jeddah 21589Saudi Arabia Gua.0}xi n.vel Ba.tery Ma.eria.s Resea.ch Cen.er of En.in.erin. Techn.logy School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Sta.e Key La.ora.ory of Fea.ured Meta. Ma.eria.s a.0} Life-Cycle Sa.ety for Comp.site Structures Nanning 530004China

For the first time,the MgH_(2)–n.a.H_(4)(ra.io 4:1)desta.ilized system with CoTiO_(3) a.dition.ha. been.*** CoTiO_(3)-dop.d MgH_(2)–n.a.H_(4) sa.p.e begin. to dehydrogen.te a. 130℃,which is declin.d by 40℃ comp.1}ed to the un.op.d MgH_(2)–n.a.H_(4).Moreover,the de/rehydrogen.tion.kin.tics cha.a.teristics of the CoTiO_(3)-dop.d MgH_(2)–n.a.H_(4) were grea.ly *** the in.lusion.of CoTiO_(3),the MgH_(2)–n.a.H_(4) comp.site a.sorbed 5.2 wt.%H_(2),higher tha.0}un.op.d MgH_(2)–n.a.H_(4).In.the con.ext of dehydrogen.tion.the CoTiO_(3)-dop.d MgH_(2)–n.a.H_(4) sa.p.e desorbed 2.6 wt.%H_(2),a.most doubled comp.1}ed to the a.oun. of hydrogen.desorbed from the un.op.d MgH_(2)–n.a.H_(4) *** a.tiva.ion.en.rgy obta.n.d by the Kissin.er a.0}lysis for MgH_(2) decomp.sition.wa. sign.fica.0}ly lower by 35.9 kJ/mol tha.0}the un.op.d MgH_(2)–n.a.H_(4) *** rea.tion.mecha.0}sm demon.tra.ed tha. n.w p.a.es of MgCo a.0} a.Ti_(3) were gen.ra.ed in.situ durin. the hea.in. p.ocess a.0} a.e likely to p.a. a.substa.0}ia. ca.a.ytic fun.tion.a.0} be useful in.a.eliora.in. the de/rehydrogen.tion.p.op.rties of the desta.ilized MgH_(2)–n.a.H_(4) system with the in.lusion.of CoTiO_(3).

关键词： Desta.ilize system Ma.n.sium hydride Sodium a.a.0}te Hydrogen.stora.e a.ditive.

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Wetta.ility,rea.tivity,a.0} in.erfa.e structure in.Mg/n. system

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Journ.l of Ma.n.sium a.0} a.loys 2024年第2期12卷 659-672页

作者： S.Terlicka.n.Sobcza. Ł.Ma. p.Da.ła. J.J.Sobcza. In.titute of Meta.lurgy a.0} Ma.eria.s Scien.e Polish Academy of Sciences25 Reymonta Str.KrakowPoland Fa.ulty of Foun.ry En.in.erin. AGH University23 Reymonta Str.KrakowPoland

The sessile drop.method wa. a.p.ied to the exp.rimen.a. in.estiga.ion.of the wettin. a.0} sp.ea.in. beha.iors of liquid Mg drop. on.p.re n. *** comp.0}ison.the exp.rimen.s were p.rformed in.two va.ia.0}s:(1)usin. the Ca.illa.y p.rifica.ion.Cp.p.ocedure,which a.lows the n.n.con.a.t hea.in. a.0} squeezin. of a.p.re oxide-free Mg drop.(2)by cla.sica. Con.a.t Hea.in.(CH)*** high-temp.ra.ure tests were p.rformed un.er isotherma. con.ition.(Cp.760℃for 30 s;CH:715℃for 300 s)usin. a.+5 wt%H_(2) *** the sessile drop.tests,ima.es of the Mg/n. coup.es were recorded by CCD ca.era.(57 fp.),which were then.a.p.ied to ca.cula.e the con.a.t a.0}les of meta./substra.e *** a.0} tra.0}mission.electron.microscop. a.0}lyses,both coup.ed with en.rgy-disp.rsive X-ra. sp.ctroscop.,were used for deta.led structura. cha.a.teriza.ion.of the solidified *** wa. foun. tha. a.0}oxide-free Mg drop.obta.n.d by the Cp.p.ocedure showed a.wettin. p.en.men.n.on.the n. substra.e(a.0}a.era.e con.a.t a.0}leθn.1 s),followed by fa.t sp.ea.in. a.0} good wettin. over the n. substra.e(θ_((Cp.)~20°in.5 s)to form a.fin.l con.a.t a.0}le ofθ_(f(Cp.)~18°.In.con.ra.t,a.differen. wettin. beha.ior wa. observed for the CH p.ocedure,where the un.voida.le p.ima.y oxide film on.the Mg surfa.e blocked the sp.ea.in. of liquid Mg showin. a.p.0}en.ly n.n.wettin. beha.ior a.ter 300 s con.a.t a. the test ***,in.both ca.es,the deep.cra.ers formed in.the n. substra.es un.er the Mg drop. a.0} sign.fica.0} cha.0}e in.the structure of in.tia.ly p.re Mg drop. to Mg-n. a.loys suggest a.stron. dissolution.of n. in.liquid Mg a.0} a.p.0}en. va.ues of the fin.l con.a.t a.0}les mea.ured for the Mg/n. system.

关键词： Ma.n.sium-ba.ed a.loys Sessile drop.tests Ca.illa.y p.rifica.ion.p.ocedure Wetta.ility Rea.tivity Con.a.t a.0}le

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