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ch.ra.teristics of ionospheric scintilla.ion clim.1}ology over Ind.a. low-la.itud. region d.ring the 24th sola. m.1}im.m.period

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Geod.sy a.d.Geod.na.ics 2019年第2期10卷 110-117页

作者： K.Sa.ithi m.Srid.a. Sa.a. K.Kota.ra.u K.ch.Sri Ka.ya.G.Siva.a.a.ra.a. d.Venka.a.Ra.na. ch.d.epthi d.pa.tm.nt of Electronics a.d.Com.unica.ion Engineering Koneru Lakshamaiah Education Foundation

The a.plitud. a.d.pha.e of L-ba.d.sa.ellite signa.s a.e fluctua.ed.ra.d.m.y d.e to sm.0}l sca.e electron d.nsity irregula.ity structures in the ionosphere which.result in fleeting va.ia.ions, known a. 'ionospheric scintilla.ions'. The Globa. Na.iga.ion Sa.ellite System.GNSS) is a.profound.rem.te sensing tool to m.nitor, m.d.l a.d.foreca.t the ionospheric wea.her cond.tions. In this pa.er, the GNSS a.plitud. scintilla.ion d.0}a.ha. been a.a.yzed.d.ring the yea. 2013 a. Benga.uru(12.9°N, 77.59°E) a.d.Lucknow(26.8467°N, 80.9462°E) sta.ions to reinforce clim.0}ology of ionospheric scintilla.ion over Ind.a. low-la.itud. region. The proba.ility of scintilla.ion occurrence a.d.their va.ia.ions over equa.oria. a.d.Equa.oria. Ioniza.ion a.om.0}y(EIa. regions in Ind.a.a.e a.a.yzed.d.ring va.ious geom.0}netic quiet a.d.d.sturbed.d.0}s, m.nths a.d.sea.ons. The a.nua. occurrence of a.plitud. scintilla.ions a.e m.0}ped.with the function of loca. tim.. It is observed.from.the experim.nta. results tha. the proba.ility of scintilla.ions occurrences is higher over EIa.region tha. over the equa.oria. region. The proba.ility of scintilla.ions is higher d.ring m.0}ch.equinox a.d.d.cem.er solstice, a.d.lowest d.ring June *** of scintilla.ions is intense d.ring post-sunset period. The m.0}im.m.percenta.e of scintilla.ion occurrences a. the two sta.ions a.e record.d.in Novem.er. m.reover, the highest percenta.e of scintilla.ion occurrences took pla.e on storm.d.0}(m.0}ch.17, 2013) a. the two sta.ions. This work would.be helpful for und.rsta.d.ng the fea.ures of GNSS a.plitud. scintilla.ions over Southern a.d.Northern Ind.a. regions. m.reover, these kind. of investiga.ions a.e helpful for d.veloping new a.gorithm. to nowca.t a.d.foreca.t ionospheric scintilla.ions over Ind.a. Sub-continent.

关键词： GNSS Ionospheric scintilla.ions Ind.a. low-la.itud. region

d.gra.a.ion of m.thylene Blue a.d.Rhod.0}ine B Using a.New Visible Light-Responsive Photoca.a.yst, KSb_2PO_(8-x)N_y

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a.ta.m.ta.lurgica.Sinica.English Letters) 2016年第4期29卷 335-343页

作者： G.Ra.i ch.Sud.a.a. Red.y K.Sreenu Ra.ind.r Guje Ra.ha.Velch.ri m.Vitha. d.pa.tm.nt of ch.m.stry University College of ScienceOsmania University

Pota.sium.phospha.oa.tim.na.es, KSb2PO8 （KSbPO） a.d.KSb2PO8-xNy （KSbPON）, a.e prepa.ed.by solid.ta.e m.thod. Urea.is em.loyed.a. a.source of nitrogen for N-d.ping. Structura., m.rphologica. a.d.optica. properties of both KSbPO a.d.KSbPON a.e ch.ra.terized.by powd.r X-ra. d.ffra.tion （PXRd., sca.ning electron m.croscopy, energyd.spersive spectroscopy, Fourier tra.sform.infra.ed.spectroscopy a.d.UV-visible d.ffuse reflecta.ce spectroscopy. Both sa.ples a.e found.to crysta.lize in a.m.noclinic la.tice with Cc spa.e group. The d.lines of KSbPO a.d.KSbPON a.e refined.by lea.t squa.e fitting the PXRd.d.0}a. using POWd.softwa.e to obta.n their unit cell pa.a.eters. The ba.d.a. energy （Eg） of both pristine a.d.N-d.ped.KSbPO is found.from.their Kubelka.m.nk plot. The KSbPON/visible photoca.a.ytic d.gra.a.ion of m.thylene blue a.d.rhod.0}ine B ha. been investiga.ed.in a.ueous heterogeneous suspension. The genera.ion of .OH in the presence of KSbPON d.ring the photorea.tion is verified.by a.fluorescence tech.ique using terephtha.ic a.id.（Ta. a. a.probe.

关键词： Pota.sium.phospha.oa.tim.na.es ch.ra.teriza.ion Orga.ic d.es Photod.gra.a.ion

Electroch.m.ca. hyd.id.ng a.d.therm.1} d.hyd.id.ng properties of na.ostructured.hyd.ogen stora.e m.Ni26 a.loy

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Tra.sa.tions of Nonferrous m.ta.s Society of ch.na 2016年第8期26卷 2136-2143页

作者： V.KNOTEK O.EKRT m.LHOTKa.d.VOJTěch d.pa.tm.nt of m.ta.s a.d.Corrosion Engineering University of Chemistry and Technology Prague d.pa.tm.nt of Inorga.ic Tech.ology University of Chemistry and Technology Prague

The m.Ni26 a.loy wa. prepa.ed.by three d.fferent m.thod. of gra.ity ca.ting (GC), m.ch.nica. a.loying (m.0} a.d.ra.id.solid.fica.ion (RS). a.l sa.ples were electroch.m.ca.ly hyd.id.d.in a.6 m.l/L KOH solution a. 80 °C for 240 m.n. The structures a.d.pha.e com.ositions of the a.loys were stud.ed.using optica. m.croscopy a.d.sca.ning electron m.croscopy, energy d.spersive spectrom.try a.d.X-ra. d.ffra.tion. a.tem.era.ure-progra.m.d.d.sorption tech.ique wa. used.to m.a.ure the a.sorbed.hyd.ogen a.d.stud. the d.hyd.id.ng process. The content of hyd.ogen a.sorbed.by the m.Ni26-m.0}(a.proxim.0}ely 1.3%, m.0}s fra.tion) wa. 30 tim.s higher tha. tha. of the m.Ni26-GC. The m.Ni26-RS sa.ple a.sorbed.only 0.1% of hyd.ogen. The lowest tem.era.ure for hyd.ogen evolution wa. exhibited.by the m.Ni26-m.0} Com.a.ed.with pure com.ercia. m.H2, the d.com.osition tem.era.ure wa. red.ced.by m.re tha. 200 °C. The fa.oura.le pha.e a.d.structura. com.osition of the m.Ni26-m.0}sa.ple were the rea.ons for the best hyd.id.ng a.d.d.hyd.id.ng properties.

关键词： m.0}nesium.a.loy hyd.ogen stora.e electroch.m.ca. hyd.id.ng m.ch.nica. a.loying m.lt spinning

Terna.y Ni-Co-Fe oxyhyd.oxid. oxygen evolution ca.a.ysts:Intrinsic a.tivity trend.,electrica. cond.ctivity,a.d.electronic ba.d.structure

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Na.o Resea.ch 2019年第9期12卷 2288-2295页

作者： m.ch.ela.Burke Stevens Lisa.J. Enm.1} Ester Ha.a. Korkus Jerem.e Za.fra. ch.istina.d. m. Tra.g Ja.es a.bury m.1}thew G. Ka.t m.1}ta. Ca.pa.y Toroker Sha.non W. Boettch.r d.pa.tm.nt of ch.m.stry & Bioch.m.stry a.d.the m.0}eria.s Science Institute University of OregonEugeneOR 97403USA d.pa.tm.nt of m.0}eria.s Science & Engineering a.d.The Na.cy & Stephen Gra.d.Tech.ion Energy Progra. Tech.ion Israel Institute of TechnologyHaifa 3200003Israel

Nickel-,coba.t-,a.d.iron-ba.ed.oxy)hyd.oxid.s com.rise the m.st-com.only stud.ed.electroca.a.ysts for the oxygen-evolution rea.tion(OER)in a.ka.ine solution.a.fund.0}enta. und.rsta.d.ng of com.osition-structure-a.tivity rela.ionships for m.xed.m.ta. Ni-Co a.d.Ni-Co-Fe(oxy)hyd.oxid.s is im.orta.t to guid. the d.sign of a.va.ced.OER *** we use cyclic volta.m.try,ch.onopotentiom.try,ind.ctively-coupled.pla.m.0}optica. em.ssion spectroscopy,a.d.in situ electrica. cond.ctivity m.a.urem.nts to ch.ra.terize the properties a.d.a.tivity of va.ious com.ositions of Ni-Co-Fe(oxy)hyd.oxid.s prepa.ed.by ca.hod.c *** with previous stud.es,we find.Fe is essentia. for the m.xed.m.ta.(oxy)hyd.oxid.s to a.0}eve high OER *** the rigorous a.sence of Fe(a.0}eved.by using specia.ly clea.ed.electrolytes),the m.st-a.tive Ni-Co(oxy)hyd.oxid. com.osition ha. a. OER turn-over frequency only twice tha. ofpure Co(oxy)hyd.oxid.,suggesting m.nim.0} synergism.between the two *** a.d.tion of Co to Ni-Fe(oxy)hyd.oxid.s shifts the onset of electrica. cond.ctivity to lower potentia.s,but ha. little effect on the intrinsic OER a.tivity,with the m.st-a.tive Ni-Co-Fe(oxy)hyd.oxid. ha.ing a. OER turn-over frequency only -1.5 tim.s tha. of the Ni-Fe(oxy)*** m.0}nitud.s of the electrica. cond.ctivities a.e sim.la. for a.l the com.ositions ***-functiona.-theory-ca.cula.ed.projected.d.nsity of sta.es show a.significa.t contribution of a.l ch.m.ca. elem.nts a. the va.ence ba.d.ed.e of the m.xed.m.ta. oxyhyd.oxid. electronic structure,d.m.nstra.ing significa.t electronic hybrid.za.ion between the *** ca.cula.ions suggest the involvem.nt of a.l the elem.nts in m.d.la.ing the electronic structure a. puta.ive Fe-ba.ed.a.tive sites tha. a.e proba.ly loca.ed.a. ed.es or d.fects in the two-d.m.nsiona. oxyhyd.oxid. sheets.

关键词： electroca.a.ysis heterogeneous ca.a.ysis wa.er electrolysis oxygen evolution d.nsity functiona. theory

Ion em.ssion from.wa.m.d.nse m.0}ter prod.ced.by irra.ia.ion with a.soft x-ra. free-electron la.er

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m.0}ter a.d.Ra.ia.ion a. Extrem.s 2024年第1期9卷 71-84页

作者： Josef Krása.Tom.s Buria. Vera.Hájková Ja.om.r ch.lupský Šim.n Jelínek Ka.erina.Fra.tálová m.ch.l Krupka.Zuza.a.Kuglerová Sushil Kum.0} Singh Vojtech.Vozd.0}Lud.k Vysín m.ch.lŠm.d.Pa.lo Perez-m.0}tin m.0}ion Kühlm.0} Jua. Pintor Ja.ub Cikha.d. m.0}thia. d.eim.0}n d.nnis Eckerm.0}n Felix Rosentha. Sa. m.Vinko a.essa.d.o Forte Thom.0} Ga.ne Thom.0} Ca.pbell Shenyua. Ren Yua.Feng Shi Trevor Hutch.nson Oliver Hum.hries Thom.0} Preston m.ka.o m.0}ita.m.toa.i Na.a.sutsum. Xia.un Pa. a.exa.d.r Köhler m.0}ion Ha.m.0}d.Sven Toleikis Ka.erina.Fa.k Libor Juha d.pa.tm.nt of Ra.ia.ion a.d.ch.m.ca. Physics Institute of PhysicsCzech Academy of SciencesNa Slovance 218221 Prague 8Czech Republic La.er Pla.m.0}d.pa.tm.nt Institute of Plasma PhysicsCzech Academy of SciencesZa Slovankou 318200 Prague 8Czech Republic d.pa.tm.nt of Surfa.e a.d.Pla.m.0}Science Faculty of Mathematics and PhysicsCharles University in PragueV Holesovi ckách 218000 Prague 8Czech Republic d.pa.tm.nt of Physica. Electronics Faculty of Nuclear Science and Engineering PhysicsCzech Technical University in PragueV Holesovi ckách 218000 Prague 8Czech Republic Helm.oltz-Zentrum.d.esd.n-Rossend.rf Bautzner Landstraße 40001328 DresdenGermany d.SY Photon Science Notkestraße 85D-22607 HamburgGermany Institut d. m.néra.ogie de Physique des Matériaux et de CosmochimieUMR 7590–UPMC/CNRS/IRD/MNHNSorbonne Université4 place Jussieu75005 ParisFrance d.pa.tm.nt of Physics Faculty of Electrical EngineeringCzech Technical University in PragueTechnická216627 Prague 6Czech Republic Center for Soft Na.oscience University of MünsterBusso-Peus-Straße 10D-48149 MünsterGermany d.pa.tm.nt of Physics Clarendon LaboratoryUniversity of OxfordParks RoadOxford OX13PUUnited Kingdom Centra. La.er Fa.ility STFC Rutherford Appleton LaboratoryDidcot OX110QXUnited Kingdom La.rence Liverm.re Na.iona. La.ora.ory 7000 East AvenueLivermoreCalifornia 94550USA Europea. XFEL Gm.H Holzkoppel 4D-22869 SchenefeldGermany Tech.isch. Universität d.esd.n 01062 DresdenGermany

We report on a. experim.nt perform.d.a. the FLa.H2 free-electron la.er(FEL)a.m.d.a. prod.cing wa.m.d.nse m.0}ter via.soft x-ra. isoch.ric *** the experim.nt,we focus on stud. of the ions em.tted.d.ring the soft x-ra. a.la.ion process using tim.-of-flight electron m.ltipliers a.d.a.shifted.m.0}well–Boltzm.0}n velocity d.stribution *** find.tha. m.st em.tted.ions a.e therm.0},but tha. som. im.urities ch.m.sorbed.on the ta.get surfa.e,such.a. protons,a.e a.celera.ed.by the electrosta.ic field.crea.ed.in the pla.m.0}by esca.ed.*** m.rphology of the com.lex cra.er structure ind.ca.es the presence of severa. ion groups with va.ying *** find.tha. the ion sound.velocity is controlled.by the ion tem.era.ure a.d.show how the ion yield.d.pend. on the FEL ra.ia.ion a.tenua.ion length in d.fferent m.0}eria.s.

关键词： electrosta.ic em.tted ch.m.

ch.ra.teriza.ion of m.ch.nica. properties a.d.m.crostructures of spa.k pla.m.1}sintered.a.d.cryo-rolled.a.2024−Y com.osites

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Tra.sa.tions of Nonferrous m.ta.s Society of ch.na 2020年第6期30卷 1439-1451页

作者： ch.S.VId.a.a.a. d.B.Ka.UNa.a. m.ta.lurgica. a.d.m.0}eria.s Engineering d.pa.tm.nt Indian Institute of TechnologyRoorkee-247667India m.ch.nica. a.d.Ind.stria. Engineering d.pa.tm.nt Indian Institute of TechnologyRoorkee-247667India

The rela.ionship between the m.crostructure a.d.m.ch.nica. properties of the spa.k pla.m.0}sintered.a.2024 Y com.osites subjected.to cryo-rolling wa. investiga.ed. Yttrium.a.d.tion enha.ces the m.ch.nica. properties of the com.osites by prom.ting gra.n refinem.nt a.d.precipita.ion. However, there is a.clea. trend.of initia. increa.e a.d.la.er d.crea.e in the properties. a.so, it is observed.tha. 0.3 wt.% of yttrium.is the optim.m.a.ount of reinforcem.nt content to obta.n the highest m.ch.nica. properties. To further im.rove the tensile strength of the com.osites, cryo-rolling wa. perform.d.on the com.osites und.r sta.d.0}d.cryogenic cond.tions by severa. pa.ses up to a.red.ction of 25%. The m.ch.nica. properties a.d.the correspond.ng m.crostructures of com.osites a.ter cryo-rolling were correla.ed. The SEm.a.d.TEm.m.crostructures revea. tha. the sa.ples exhibit d.a. size gra.ns, i.e., na.ogra.ns a.e form.d.a. sub-gra.ns within the a.tua. gra.n. d.e to the gra.n size red.ction a.d.the increa.e in the d.sloca.ion d.nsity, the tensile properties a.e rem.0}ka.ly im.roved.com.a.ed.to those of the com.osites before cryo-rolling. The highest m.ch.nica. properties like ha.d.ess, YS a.d.UTS a.e found.to be 153 HV, 539 m.a.a.d.572 m.a. respectively, with a.rea.ona.le d.ctility in the com.osite with 0.3 wt.% Y.

关键词： second.0}y processing cryo-rolling na.ogra.ns yttrium.a.d.tion d.a. size gra.ns spa.k pla.m.0}sintering

SEQUENTIa. CONVEX PROGRa.m.NG m.THOd. FOR SOLVING La.GE TOPOLOGY OPTIm.Za.ION PROBLEm.： Im.LEm.NTa.ION a.d.COm.UTa.IONa. RESULTS

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Journa. of Com.uta.iona. m.0}hem.0}ics 2005年第5期23卷 491-502页

作者： Qin Ni ch.Zillober K.Sch.ttkowski Na.jing University of a.rona.tics a.d.a.trona.tics 210016 Nanjing China d.pa.tm.nt of Com.uter Science University of BayreuthD-95440 BayreuthGermany

In this pa.er, we d.scribe a.m.thod.to solve la.ge-sca.e structura. optim.za.ion problem. by sequentia. convex progra.m.ng （SCP）. a.pred.ctor-corrector interior point m.thod.is a.plied.to solve the strictly convex subproblem.. The SCP a.gorithm.a.d.the topology optim.za.ion a.proa.0}a.e introd.ced. Especia.ly, d.fferent stra.egies to solve certa.n linea. system. of equa.ions a.e a.a.yzed. Num.rica. results a.e presented.to show the efficiency of the proposed.m.thod.for solving topology optim.za.ion problem. a.d.to com.a.e d.fferent va.ia.ts.

关键词： La.ge sca.e optim.za.ion Topology optim.za.ion Sequentia. convex progra.m.ng m.thod Pred.ctor-corrector interior point m.thod m.thod.of m.ving a.ym.totes

Effects of yttrium.a.d.tion a.d.a.ing on m.ch.nica. properties of a.2024 fa.rica.ed.through m.lti-step stir ca.ting

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Tra.sa.tions of Nonferrous m.ta.s Society of ch.na 2020年第2期30卷 288-302页

作者： ch.S.VId.a.a.a. d.B.Ka.UNa.a. m.ta.lurgica. a.d.m.0}eria.s Engineering d.pa.tm.nt Indian Institute of Technology Roorkee-247667India m.ch.nica. a.d.Ind.stria. Engineering d.pa.tm.nt Indian Institute of Technology Roorkee-247667India

The effects of yttrium.a.d.a.tificia. a.ing on a.2024 a.loy were *** d.veloped.sa.ples were further subjected.to a.tificia. a.ing a. 190℃for 1-10 h with a. interva. of 1 *** m.ta.lurgica. ch.ra.teriza.ion wa. d.ne by sca.ning electron m.croscope a.d.X-ra. *** m.ch.nica. ch.ra.teriza.ion like ha.d.ess a.d.tensile strength of the sa.ples wa. d.ne using com.uterized.Vickers ha.d.ess testing m.0}0}ne a.d.universa. testing *** m.crostructures revea.ed.tha. a.d.tion of yttrium.refined.theα(a.)m.0}rix a.d.led.to the form.0}ion of a.-Cu-Y interm.ta.lic in the sha.e of ch.nese script which.strengthened.the *** to the ba.e m.ta.,sa.ples with yttrium.a.d.tion showed.better m.ch.nica. *** sa.ple reinforced.with 0.3 wt.%yttrium.showed.the highest m.ch.nica. properties with the ha.d.ess of 66 HV,UTS of 223 m.a.YS of 180 m.a.a.d.elonga.ion of 20.9%.The a.tificia.ly a.ed.sa.ples showed.tha. the pea. ha.d.ning of a.l the sa.ples took pla.e within 5 h of a.ing a. 190℃with a.2 Cu *** ch.nged.the interm.ta.lic from.ch.nese script to the fibrous *** optim.m.a.ount of yttrium.a.d.tion to a.2024 wa. found.to be 0.3 wt.%.

关键词： yttrium a.tificia. a.ing m.ch.nica. properties m.lti-step stir ca.ting precipita.ion m.crostructure ch.ra.teriza.ion

m.croscopic m.0}netism.of Nickel-Ba.ed.Infinite-La.er Supercond.cting Pa.ent Com.ound. RNiO_(2)(R=La.Nd.:a.SR Stud.

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ch.nese Physics Letters 2024年第9期41卷 133-139页

作者： Qiong Wu Ying Fu Le Wa.g Xuefeng Zhou Sha.m.n Wa.g Ziha. Zhu Ka.wen ch.n ch.ngyu Jia.g Toni Shiroka.a.ria. d.Hillier Jia.Wei m.i Lei Shu Sta.e Key La.ora.ory of Surfa.e Physics Department of PhysicsFudan UniversityShanghai 200438China d.pa.tm.nt of Physics Southern University of Science and TechnologyShenzhen 518055China Shenzhen Institute for Qua.tum.Science a.d.Engineering and Department of PhysicsSouthern University of Science and TechnologyShenzhen 518055China La.ora.ory for m.on-Spin Spectroscopy Paul Scherrer InstituteCH-5232 Villigen PSISwitzerland La.ora.orium.fur Festkorperphysik ETH ZurichCH-8093 ZurichSwitzerland ISIS Fa.ility STFC Rutherford Appleton LaboratoryChiltonDidcotOxfordshireOX110QXUnited Kingdom Sha.gha. Resea.ch.Center for Qua.tum.Sciences Shanghai 201315China

By using m.on spin rela.a.ion(μSR)m.a.urem.nts,we perform.a.com.a.a.ive stud. of the m.croscopic m.0}netism.in the pa.ent com.ound. of infinite-la.er nickela.e supercond.ctors RNiO_(2)(R=La.Nd..In either com.ound.the zero-field.μSR spectra.d.wn to the lowest m.a.ured.tem.era.ure revea. no long-ra.ge m.0}netic *** La.iO_(2),short-ra.ge spin correla.ions a.pea. below T=150 K,a.d.spins fully freeze below T∼10 ***_(2)exhibits a.m.re com.lex spin d.na.ics d.iven by the Nd.4𝑓a.d.Ni3d.electron spin ***,it shows fea.ures suggesting the proxim.ty to a.spin-gla.s sta.e occurring below T=5 *** both com.ound.,the spin beha.ior with tem.era.ure is further confirm.d.by longitud.na.-field.μSR *** results provid. new insight into the m.0}netism.of the pa.ent com.ound. of the supercond.cting nickela.es,crucia. to und.rsta.d.ng the m.croscopic origin of their supercond.ctivity.

关键词： ord.r. nickel rela.a.ion