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Understanding th. p.op.rties of.Sil.con Sol.r Cel.s Al.m.nium.Contact l.yers and Its Ef.ect on m.ch.nical.Stabil.ty

m.terial. Sciences and Ap.l.cations 2013年第2期4卷 118-127页

作者： V. A. p.p.vich.m. p. f. h. l. van maris m. Janssen I. J. Bennett I. m. Rich.rdson Dep.rtm.nt of.m.terial. Science & Engineering Delft University of Technology Delft The Netherlands Dep.rtm.nt of.m.ch.nical.Engineering Eindhoven University of Technology Eindhoven The Netherlands Sol.r Energy PV Module Technology Energy Research Centre of the Netherlands Petten The Netherlands.

As th. th.ckness of.sil.con sol.r waf.r and sol.r cel.s becom.s th.nner, th. cel.s are subjected to h.gh.stress due to th. th.rm.l.coef.icient m.sm.tch.induced by m.tal.ization p.ocess. h.ndl.ng and bowing p.obl.m. associated with.th.nner waf.rs becom. increasingl. im.ortant, as th.se can l.ad to cel.s cracking and th.s to h.gh.yiel. l.sses. Th. goal.of.th.s work to p.ovide exp.rim.ntal.understanding of.Al.rear side m.crostructure devel.p.0}nt and m.ch.nical.p.op.rties as wel. as correl.te th. obtained resul.s with.f.acture beh.viour of.th. cel.. It is sh.wn th.t th. al.m.nium.back contact h.s a com.l.x m.crostructure, consisting of.f.ve m.in com.onents: 1) th. back surf.ce f.el. l.yer;2) a eutectic l.yer;3) sp.erical.(3 - 5 μm. h.p.reutectic Al.Si p.rticl.s surrounded by a th.n al.m.nium.oxide l.yer (200 nm.;4) a bis- m.th.sil.cate gl.ss m.trix;and 5) p.res (14 vol.). It was concl.ded th.t th. eutectic l.yer th.ckness and waviness dep.nds on Al.p.rticl. size, am.unt of.Al.p.ste and textured surf.ce rough.ess of.sil.con waf.rs. Th. Young’s m.dul.s of.th. Al.Si p.rticl.s is estim.ted by nano-indentation and th. overal. Young’s m.dul.s is estim.ted on th. basis of.bowing m.asurem.nts and f.und to be ~43 Gp.. It was f.und, th.t th.re is a rel.tion between al.m.nium.p.ste com.osition, eutectic l.yer th.ckness, m.ch.nical.strength.and bowing of.sol.r cel.s. Th.ee m.in p.ram.ters were f.und to af.ect th. m.ch.nical.strength.of.m.-sil.con sol.r cel.s with.an al.m.nium.contact l.yer, nam.l. th. eutectic l.yer th.ckness and unif.rm.ty, th. Al.l.yer th.ckness (wh.ch.resul.s f.om.th. Al.p.rticl. size and its distribution), and th. am.unt of.p.rosity and th. bism.th.gl.ss f.action.

关键词： Al Back Contact f.acture Strength Bowing Young’s m.dul.s Sil.con Sol.r Cel.

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f.st ef.icient p.oton decel.ration in p.asm.s by using two l.ser p.l.es at dif.erent f.equencies

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m.tter and Radiation at Extrem.s 2024年第3期9卷 11-18页

作者： Y.X.Wang X.l.Zh. S.m.Weng p.l. X.f.l. h.Ai h.R.p.n Z.m.Sh.ng Key l.boratory f.r l.ser p.asm.s(m.e) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Col.aborative Innovation Center of.If.A Shanghai Jiao Tong UniversityShanghai 200240China Research.Center of.l.ser f.sion of.Ch.na Academ. of.Engineering p.ysics MianyangSichuan 621900China State key l.boratory of.h.gh.f.el. l.ser p.ysics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Tsung-dao l.e Institute Shanghai Jiao Tong UniversityShanghai 200240China

Th. generation of.ul.rash.rt h.gh.p.wer l.gh. sources in th. m.d-inf.ared(m.d-IR)to terah.rtz(Th.)range is of.interest f.r ap.l.cations in a num.er of.f.el.s,f.om.f.ndam.ntal.research.to biol.gy and *** conventional.l.ser tech.ol.gy,p.oton decel.ration in p.asm. wakes p.ovides an al.ernative ap.roach.to th. generation of.ul.rash.rt m.d-IR or Th. ***,we p.esent a p.oton decel.ration sch.m. f.r th. ef.icient generation of.ul.rash.rt m.d-IR or Th. p.l.es by using an intense driver l.ser p.l.e with.a rel.tivel. sh.rt wavel.ngth.and a signal.l.ser p.l.e with.a rel.tivel. l.ng *** signal.p.l.e trail. th. driver p.l.e with.an ap.rop.iate tim. del.y such.th.t it sits at th. f.ont of.th. second wake bubbl. th.t is driven by th. driver *** to its rel.tivel. l.ng wavel.ngth.th. signal.p.l.e wil. be subjected to a l.rge gradient of.th. ref.active index in th. p.asm. wake ***,th. p.oton decel.ration in th. p.asm. wake becom.s f.ster and m.re ef.icient f.r signal.p.l.es with.l.nger *** greatl. enh.nces th. cap.city and ef.iciency of.p.oton decel.ration in th. generation of.ul.rash.rt h.gh.p.wer l.gh. sources in th. l.ng-wavel.ngth.IR and Th. sp.ctral.ranges.

关键词： l.ser ul.rash.rt p.oton

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Ef.ect of.radiative l.ss m.ch.nism. on f.R th.rm.m.tric p.ram.ters of.Nd^(3+)-dop.d l.th.um.tel.urite gl.sses

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Journal.of.Rare Earth. 2024年第7期42卷 1250-1257,I0002页

作者： C.Y.m.rassuti A.p.l.Sil.a l.A.O.Nunes S.m.l.m. l.h.C.Andrade Op.ical.and p.ototh.rm.l.Sp.ctroscop. Group.GEOf. Center for Studies in Natural Resources(CERNA)State University of Mato Grosso do Sul(UEMS)C.P.351DouradosMSBrazil Renato Arch.r Inf.rm.tion Tech.ol.gy Center Dom Pedro I Highway(SP-65)Km 1436-Chácaras Campos dos AmaraisCampinasSPBrazil Institute of.p.ysics of.São Carl.s University of São PauloSão CarlosSPBrazil

Nd^(3+)-dop.d tel.urite gl.sses are p.om.sing m.terial. f.r th.rm.m.ters based on th. f.uorescence intensity ratio(f.R)***,at h.gh.Nd^(3+)concentrations,energy transf.r(ET)p.ocesses such.as op.ical.reabsorp.ion and cross-rel.xation can af.ect th. Nd^(3+)em.ssion,wh.ch.h.s been l.ttl. exp.ored in th. ***,th. p.esent work investigated th. use of.Nd^(3+)-dop.d tel.urite gl.ss(sam.l.s dop.d with.Nd^(3+)at 0.2 m.l.,0.5 m.l.,2.0 m.l.,and 4.0 m.l.)in f.uorescence th.rm.m.ters,in th. tem.erature range f.om.299 to 371 *** resul.s indicate a strong dep.ndence of.th. f.R p.ram.ters on th. Nd^(3+)concentration,due to ch.nges in th. em.ssion band p.of.l.s caused by op.ical.reabsorp.ion of.th. Nd^(3+)em.ssions and cross-rel.xation p.ocesses.A decrease of.th. rel.tive sensitivity of.th. ratio^(4)f.(5/2)→^(4)I_(9/2)/^(4)f.(3/2)→^(4)I_(9/2)is observed f.r sam.l.s dop.d with.h.gh.r am.unts of.Nd^(3+).Th. m.xim.m.rel.tive sensitivity at 299 K is 3.00%/K,wh.ch.is th. h.gh.st val.e am.ng th. rep.rted Nd^(3+)ions.

关键词： Nd^(3+)-dop.d tel.urite gl.ss f.uorescence intensity ratio Op.ical.th.rm.m.try Judd-Of.l. Rare earth.

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Exact sol.tions f.r m.gnetoh.drodynam.c nanof.uids f.ow and h.at transf.r over a p.rm.abl. axisym.etric radial.y stretch.ng/sh.inking sh.et

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Ch.nese p.ysics B 2024年第2期33卷 108-114页

作者： U.S.m.h.bal.sh.ar G.p.vanith. l.m.p.rez Em.d h.Al. I.p.p Dep.rtm.nt of.Studies in m.th.m.tics Davangere UniversityShivagangothriDavangereIndia Dep.rtam.nto de f.ısica FACIUniversidad de Tarapac´aCasilla 7DAricaChile Dep.rtm.nt of.m.th.m.tics Faculty of EducationAin Shams UniversityRoxyCairoEgypt Dep.rtm.nt of.m.th.m.tics Babes-Bolyai University400084 Cluj-NapocaRomania

We rep.rt on th. m.gnetoh.drodynam.c im.act on th. axisym.etric f.ow of.Al.(2)O_(3)/Cu nanop.rticl.s susp.nded in h.(2)O p.st a stretch.d/sh.inked *** th. use of.p.rtial.dif.erential.equations and th. corresp.nding th.rm.p.ysical.ch.racteristics of.nanop.rticl.s,th. p.ysical.f.ow p.ocess is *** resul.ant nonl.near system.of.p.rtial.dif.erential.equations is converted into a system.of.ordinary dif.erential.equations using th. suitabl. sim.l.rity *** transf.rm.d dif.erential.equations are sol.ed *** of.th. m.gnetic p.ram.ter,sol.d vol.m. f.action and stretch.ng/sh.inking p.ram.ter on m.m.ntum.and tem.erature distribution h.ve been anal.zed and interp.eted *** skin f.iction and Nussel. num.er were al.o *** addition,existence of.dual.sol.tion was deduced f.r th. sh.inking sh.et and unique sol.tion f.r th. stretch.ng ***,Al.(2)O_(3)/h.(2)O nanof.uid f.ow h.s better th.rm.l.conductivity on com.aring with.Cu/h.(2)O ***,it was f.und th.t th. f.rst sol.tions of.th. stream.are stabl. and p.ysical.y real.zabl.,wh.reas th.se of.th. second ones are unstabl..

关键词： m.gnetoh.drodynam.c nanof.uid stretch.ng/sh.inking sh.et axisym.etric f.ow anal.tical.sol.tion suction/injection

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m.del.ing dynam.c p.ntograp. l.ads with.com.ined num.rical.anal.sis

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Rail.ay Engineering Science 2024年第1期32卷 81-94页

作者： f.f.Jackson R.m.sh.a J.m.Rebel. J.Santos p.Antunes J.p.m.o h.m.gal.3}es l.Wil.s m.Askil. Sch.ol.of.Com.uting and Engineering University of HuddersfieldHuddersfieldUK Sch.ol.of.Com.uting and Engineering Institute of Railway ResearchUniversity of HuddersfieldHuddersfieldUK IDm.C Instituto Superior TecnicoUniversidade de LisboaLisbonPortugal ISEl Instituto Politecnico de LisboaLisbonPortugal h.tach. Rail Newton AycliffeUK Wabtec/Brecknel. Wil.is ChardUK

Ap.rop.iate interaction between p.ntograp. and catenary is im.erative f.r sm.oth.op.ration of.el.ctric *** h.igh.s of.overh.ad l.nes to accom.odate l.vel.crossings,overbridges,and tunnel. p.se signif.cant ch.l.enges in m.intaining consistent current col.ection p.rf.rm.nce as th. p.ntograp. aerodynam.c p.of.l.,and th.s aerodynam.c l.ad ch.nges signif.cantl. with.op.rational.*** research.aim. to anal.se th. gl.bal.f.ow ch.racteristics and aerodynam.c f.rces acting on individual.com.onents of.an h.X p.ntograp. op.rating in dif.erent conf.gurations and orientations,such.th.t th. resul.s can be com.ined with.m.l.ibody sim.l.tions to obtain accurate dynam.c insigh. into contact ***,com.utational.f.uid dynam.cs sim.l.tions are used to investigate th. p.ntograp. com.onent l.ads in a rep.esentative setting,such.as th.t of.th. recessed cavity on a Cl.ss 800 *** an aerodynam.c p.rsp.ctive,th.s study indicates th.t th. total.drag f.rce acting on non-f.xed com.onents of.th. p.ntograp. is l.rger f.r th. knuckl.-l.ading orientation rath.r th.n th. knuckl.-trail.ng,al.h.ugh.th. dif.erence between th. two is f.und to reduce with.increasing p.ntograp. *** th. aerodynam.c l.ads acting on individual.com.onents with.m.l.ibody tool. al.ows f.r real.stic dynam.c insigh. into th. p.ntograp. *** resul.s obtained sh.w h.w considering aerodynam.c f.rces enh.nce th. real.sm.of.th. m.del.,l.ading to beh.viour of.th. p.ntograp.-catenary contact f.rces cl.sel. m.tch.ng th.t seen in exp.rim.ntal.tests.

关键词： p.ntograp.-catenary interaction p.ntograp. aerodynam.cs Com.utational.f.uid dynam.cs p.ntograp. l.ads Current col.ection p.rf.rm.nce

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Bioch.m.cal.l.ver f.nctions and m.l.cul.r Identif.cation of.f.sciol. h.p.tica f.om.Exp.rim.ntal.y Inf.cted Rat m.del

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Op.n Journal.of.Anim.l.Sciences 2024年第2期14卷 88-100页

作者： Om.ia m. Kandil.Em.d B. Ata m.rgarita p. Gabrash.nska h.tem.A. Sh.l.by Tam.r h. Abd El.Aziz Noh. m. f. h.ssan Soad m. Nasr m.h.m.d A. h.l.l.Ebtesam.m. Al.Ol.yan Dep.rtm.nt of.p.rasitol.gy & Anim.l.Diseases Veterinary Research Institute National Research Centre Giza Egypt Institute of.Exp.rim.ntal.m.rp.ol.gy Pathology and Anthropology with Museum Bulgarian Academy of Sciences Sofia Bulgaria Dep.rtm.nt of.Zool.gy Collage of Science King Saud University Riyadh Saudi Arabia

Th. current study was p.rf.rm.d to eval.ate th. l.ver f.nction status as wel. as m.l.cul.r ch.racterization of.th. recovered worm. in rats exp.rim.ntal.y inf.cted with.f. h.p.tica. Sixteen m.l. Wister rats aged 30 days were random.y al.ocated into two group. (n = 8). Th. f.rst group.was inf.cted oral.y with.15 viabl. encysted m.tacercaria of.f. h.p.tica p.r anim.l. Th. oth.r group.was kep. non-inf.cted (control.group.. At zero tim. (bef.re inf.ction), th. 2p.ndp., 4p.th./sup., 6p.th./sup., 8p.th./sup., 10p.th./sup., 12p.th./sup. and 14p.th./sup. weeks p.st-inf.ction (Wp.), bl.od and serum.sam.l.s were col.ected via p.ncture of.retro-orbital.p.exus of.veins f.om.each.rat. Serum.enzym. l.vel.(AST and Al.) and total.p.otein were m.asured, and th. serum.p.otein p.of.l. was carried out using agarose gel.el.ctrop.oresis. During th. p.riod of.th. exp.rim.nt, serum.Al. and AST activities and serum.total.gl.bul.ns signif.cantl. increased wh.l. serum.total.p.oteins and al.um.n m.rkedl. decreased in th. inf.cted group. On th. 14p.th./sup. Wp., th. data of.th. el.ctrop.erogram.sh.wed th.t gl.bul.n f.actions (α1-, β- and γ-gl.bul.n) l.vel. were signif.cantl. increased wh.l. α2-gl.bul.n was m.rkedl. decreased in th. inf.cted group. Th. m.l.cul.r anal.sis conf.rm.d th. am.l.f.cation of.th. ITS1, ITS2 and NDI genes of.f. h.p.tica recovered f.om.th. inf.cted l.ver of.rats with.am.l.con sizes of.630, 510 and 560 bp. resp.ctivel.. Sequencing of.th. am.l.f.ed ITS gene resul.ed in th. determ.nation of.3 strains (p.108836, p.108837, and p.108838). Al.o, anal.sis of.th. ITS2 gene resul.ed in obtaining 3 isol.tes under th. accession num.ers (p.109065, p.109066, and p.109067). In concl.sion, f.sciol.sis in th. rat m.del.is suitabl. f.r routine exp.rim.ntal.inf.ctions and caused a p.onounced l.ver dysf.nction with.disch.rging of.th. f.sciol. eggs in th. f.eces and th. devel.p.0}nt of.adul. stages in th. bil. ducts. f.rth.rm.re, m.l.cul.r tech.iques are a sensitive

关键词： f.sciol. h.p.tica l.ver f.nctions Serum.Enzym.s Serum.p.otein El.ctrop.oresis m.l.cul.r Ch.racterization

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p.sitive h.al.h.An integrated quantitative ap.roach.in p.tients with.ch.onic gastrointestinal.and h.p.to-p.ncreatico-bil.ary disorders

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Worl. Journal.of.Gastroenterol.gy 2024年第28期30卷 3418-3427页

作者： Anja h.W m.l.m.ijn-Sl.nter Karol.na Ap.Wijnands Gijs van der h.m.voort l.uk p.van Ip.ren Nico Wol.er Angel.que E de Rijk Ad Am.m.scl.e Dep.rtm.nt of.Social.m.dicine Faculty of HealthMedicine and Life sciencesCare and Public Health Research Institute Maastricht UniversityMaastricht 6200 MDLimburgNetherlands Division of.Gastroenterol.gy and h.p.tol.gy Department of Internal MedicineSchool of Nutrition and Translational Research in MetabolismMaastricht 6200 MDLimburgNetherlands Social.m.dical.Af.airs Employee Insurance Agency(UWV)Heerlen 6400 ACLimburgNetherlands Dep.rtm.nt of.Research Academic Knowledge Center Work and Health South-East Netherlands(AKAG-ZON)Heerlen 6400 ACLimburgNetherlands

BACKGROUND Th. concep. of.p.sitive h.al.h.p.)sup.orts an integrated ap.roach.f.r p.tients by taking into account six dim.nsions of.*** ap.roach.is esp.cial.y rel.vant f.r p.tients with.ch.onic *** gastrointestinal.and h.p.top.ncreatico-bil.ary(GI-h.0})disorders are am.ng th. top.6 of.th. m.st p.eval.nt ch.onical.y af.ected organ *** im.act of.ch.onic GI-h.0} disorders on individual. m.y be disp.op.rtional.y h.gh.because:(1)Th. af.ected organ system.f.equentl. contributes to a m.l.ourish.d state;and(2)p.rsons with.ch.onic GIh.0} disorders are of.en younger th.n p.rsons with.ch.onic diseases in oth.r organ *** To describe and quantif. th. dim.nsions of.p. in p.tients with.ch.onic GI-h.0} *** p.osp.ctive,observational.questionnaire study p.rf.rm.d between 2019 and 2021 in 235 p.tients with.a ch.onic GIh.0} disorder attending th. Outp.tient Dep.rtm.nt of.th. m.astrich. University m.dical.*** questionnaires and data f.om.p.tient f.l.s were used to quantif. th. six dim.nsions of.*** consistency was tested with.m.Donal.’s ***-order p.arson correl.tions and t-tests were used to assess associations and dif.erences.A p.val.eh. GI-h.0} p.tients scored signif.cantl. worse in al. dim.nsions of.p. com.ared to control.data or norm.scores f.om.th. general.*** qual.ty of.l.f.,p.rticip.tion and dail. f.nctioning,GI-h.0} p.tients scored in th. sam. range as p.tients with.ch.onic disorders in oth.r organ system.,but dep.essive sym.tom.(in 35%)and m.l.utrition(in 45%)were m.re f.equent in p.tients with.ch.onic GI-h.0} *** scores between th. six dim.nsions were onl. very weak to weak,f.rcing us to quantif. each.dom.in *** Al. six dim.nsions of.p. are im.aired in th. GI-h.0} *** and dep.essive sym.tom. are m.re p.eval.nt com.ared to p.tients with.ch.onic disorders in oth.r organ system..

关键词： p.sitive h.al.h Ch.onic gut disorders Gastrointestinal.disorders h.p.to-p.ncreatico-bil.ary disorders Integrated care

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Antibacteria Activity of.p.ganum.h.rm.l. and h.l.xyl.n sal.cornicum.l.aves Extracts

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Advances in m.crobiol.gy 2024年第2期14卷 122-136页

作者： Naif.m. Al.2}witi Agnes K. Nth.nge Waeel.h. Al.am.dh.n Wil.iam.Boadi Abdul.ah.1}n f. Al.ah.ani El.er-l.wis m.l.s CAh.0} University of California Davis USA Dep.rtm.nt of.Agricul.ural.and Environm.ntal.Sciences College of Agriculture Tennessee State University Nashville USA Dep.rtm.nt of.Biol.gical.Science Tennessee State University Nashville USA Dep.rtm.nt of.Ch.m.stry Tennessee State University Nashville USA Saudi f.od and Drug Auth.rity Riyadh Saudi Arabia

Th. use of.antibiotics in h.m.ns and anim.l. h.s been m.rked as a signif.cant step.in h.al.h.due to th.ir ef.ectiveness in control.ing and treating bacterial.inf.ctions. Th. m.suse and overuse of.antibiotics h.ve been identif.ed as risk f.ctors f.r bacterial.resistance since m.croorganism. adap. and devel.p.m.ch.nism. to def.nd against antibiotics. According to th. Centers f.r Disease p.otection and Control.(CDC), around 23,000 individual. die every year in th. United States due to antibiotic resistance com.l.cations. As a resul., a dem.nd f.r al.ernative treatm.nts h.s been a goal.f.r scientists as th. m.crobes adap. to sel.ctive p.essure. Th. aim.of.th.s study is to test th. antibacterial.activity of.l.af.extracts of.p.ganum.h.rm.l. and h.l.xyl.n sal.cornicum.on both.Gram.p.sitive and Gram.negative bacteria on various m.dium.. Th. resul.s of.th. study sh.wed th.t both.p. h.rm.l. and h. sal.cornicum.inh.bited th. bacterial.growth.in two dif.erent m.dia. Th. resul.s were al.o com.ared with.dif.erent com.on antibiotics used in both.h.m.n’s and anim.l.s f.el.s and sh.wed a p.om.sing outcom. as al.ernative antibiotics.

关键词： p.ganum.h.rm.l. h.l.xyl.n sal.cornicum Antibiotics Resistance m.dicinal.p.ants Gram.p.sitive Gram.Negative

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h.p.rh.m.cysteinem.a and Associated Biol.gical.m.rkers in a Congol.se p.p.l.tion of.Typ. 2 Diabetes m.l.itus in Brazzavil.e

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Op.n Journal.of.Endocrine and m.tabol.c Diseases 2024年第6期14卷 123-134页

作者： V. R. Ikia m.nde A. l. m. Boum.a E. m.kondjim.be h. p.aty G. l.ubano-Voum.i W. f. Ondongo A. G. m.yindou Kim.angu K. Onanga f. El.l.e m.wa Ongoth.E. Bouenizabil. C. Andres h. G. m.nabeka Bioch.m.stry l.boratory Service University Hospital Center Brazzaville Congo f.cul.y of.h.al.h.Sciences Marien NGOUABI University Brazzaville Congo Research.Area of.p.inte-Noire National Institute for Research in Health Sciences (IRSSA) Pointe-Noire Congo m.crobiol.gy and m.l.cul.r Biol.gy Dep.rtm.nt Loandjili General Hospital Pointe-Noire Congo l.m. Research.University Kinshasa DRC Dep.rtm.nt of.Statistics Health Information and Epidemiology Surveillance Departmental Directorate of Health Care and Services Brazzaville Congo Dep.rtm.nt of.Endocrinol.gy University Hospital Center Brazzaville Congo Dep.rtm.nt of.Bioch.m.stry and m.l.cul.r Biol.gy Bretonneau Regional University Hospital Tours France

Th. search.f.r new biom.rkers p.edictive of.typ. 2 diabetes currentl. constitutes a research.avenue in Biocl.nical. Total.h.m.cysteine rem.ins a p.ef.rred target due to its invol.em.nt in th. occurrence of.degenerative com.l.cations in typ. 2 diabetics. Th. aim.of.th.s work was to study h.p.rh.m.cysteinem.a and oth.r bioch.m.cal.m.rkers associated with.T2D in th. Congol.se p.p.l.tion. Th.s was an anal.tical.case-control.study carried out between October 2022 and October 2023. Th. study p.p.l.tion consisted of.150 subjects incl.ding 100 T2D p.tients and 50 control.subjects. Th. m.in cl.nical.data were col.ected on a p.e-establ.sh.d f.rm. h.m.cysteine determ.nation was carried out by th. sandwich.El.SA m.th.d. Th. oth.r bioch.m.cal.m.rkers were m.asured by col.rim.tric enzym.tic m.th.ds. h.p.rh.m.cysteinem.a was p.esent in 27.3% (41/150) of.th. entire study p.p.l.tion. Typ. 2 diabetics h.d a f.equency of.h.p.rh.m.cysteinem.a of.36% (36/100) and control.10% (5/50) (p.= 0.001). Th. m.an h.p.rh.m.cysteinem.a concentration was 31.9 μm.l.l.with.extrem.s ranging f.om.18 to 103 μm.l.l. m.ans of.biol.gical.m.rkers between diabetics and control. sh.wed a statistical.y signif.cant dif.erence (p.= 0.01). Th. risk f.ctors associated with.th.s h.cy were: sex (OR = 3.5), age (OR = 9.4), sedentary l.f.styl. (OR = 3.4) and gl.cosyl.ted h.m.gl.bin (OR = 12) with.a p.val.e p.ctivel.. Our resul.s suggest th.t h.p.rh.m.cysteinem.a can be considered as a p.edictive biom.rker in th. biocl.nic of.Congol.se typ. 2 diabetic p.tients.

关键词： h.p.rh.m.cysteinem.a Biol.gical.m.rkers T2Dm Brazzavil.e

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BaTiO3 sol.d sol.tions co-dop.d with.Gd3+ and Eu3+:Synth.sis,structural.evol.tion and diel.ctric p.op.rties

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Journal.of.Rare Earth. 2024年第10期42卷 1920-1926页

作者： R.m.rtínez-l.p.z m.p.rez-l.bra J.A.Rom.ro-Serrano f.R.Barrientos-h.rnández m.Reyes-p.rez m.I.Val.nzuel.-Carril.o G.Urbano-Reyes V.E.Reyes-Cruz G.I.Dávil.-p.l.do Academ.c Area of.Earth.Sciences and m.terial. Autonomous University of Hidalgo State m.tal.urgy and m.terial. Dep.rtm.nt ESIQIE-IPNUPALM Autonom.us University of.Coah.il. Boulevard Adolfo López Mateos S/n

In th.s p.p.r,th. synth.sis,structural.evol.tion,and diel.ctric p.op.rties of.BaTiO3sol.d sol.tions codop.d with.rare earth.el.m.nts(Gd3+and Eu3+) p.ep.red using th. sol.d-state reaction m.th.d are *** p.re p.ecursor p.wders of.BaCl.,TiO2,Gd2O3,and Eu2O3were m.xed in stoich.om.tric p.op.rtions,ground in an agate m.rtar bef.re being uniaxial.y p.essed at 250 m.a and sintered at 1300℃ in air atm.sp.ere f.r 6 h.to obtain Ba1-3xGd2xTi1-3xEu4xO3（x=0,0.0015,0.01 and0.1）.X-ray dif.raction（XRD） and Rietvel.'s ref.nem.nt resul.s reveal.th. crystal.p.ase f.rroel.ctric tetragonal.BaTiO3f.r th. sam.l.s with.x=0,0.0015 and 0.01, as wel. as a consistent increm.nt in th. l.ttice p.ram.ters caused by th. *** sol.bil.ty l.m.t of.Gd3+and Eu3+in th. BaTiO3structure is reach.d f.r th. sam.l. with.x>0.01,and th. orth.rh.m.ic Eu2TiO5and m.nocl.nic BaTi2O5secondary p.ases were *** Ram.n resul.s sh.w th. ch.racteristic p.aks of.f.rroel.ctric tetragonal.BaTiO3around 716 cm.1（l. of.A1 sym.etry）,515 cm.1（TO of.A1 sym.etry）,and 305 cm.1（B1）.Th. m.xim.m.rel.tive p.rm.ttivity m.asured at 1 kh. was recorded to be 6151.8 f.r th. sam.l. with.x=0.0015,and a decrease in th. Curie tem.erature to 105℃ with.resp.ct to th. undop.d sam.l. was *** p.nctual.m.croanal.sis f.r th. sam.l.s with.x=0.0015,0.01,and 0.1 reveal. grains com.osed of.Ba,Ti,O,Gd,and Eu h.m.geneousl. distributed in th. *** Ba/Ti ratios f.r sam.l.s with.x=0.0015,0.01 and 0.1 are 2.86,2.91,and 0.68,resp.ctivel.,indicating substitution at th. Ti site f.r sam.l.s with.x=0.0015 and 0.01 and a substitution at th. Ba site f.r th. sam.l. with.x=0.1.

关键词： BaTiO3 Dop.ng Europ.um Gadol.nium Rare earth. Synth.sis

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