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Thermomec.anic.l Behavior and c.rrosion Resistanc. of.a 316 L Austenitic.Stainless Steel

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Materials Sc.enc.s and Applic.tions 2020年第4期11卷 217-233页

作者： Raf.el P. f.rreira carmem c. f. nas.imento Gedeon S. Reis Eden S. Silva Samuel f. Rodrigues Graduate Program in Materials Engineering Federal Institute of Education Science and Technology of Maranhao (IFMA) Sao Luis Brazil

Hot-f.rmed c.mponents are c.nstantly exposed to hostile environments with c.rrosive substanc.s. Mic.ostruc.ural c.anges c.used by thermomec.anic.l proc.ssing c.n be predic.ed to inc.ease the c.rrosion resistanc. of.austenitic.stainless steels. The objec.ive of.this study is to understand the relationship between the dynamic.sof.ening mec.anisms and c.rrosion resistanc., thus optimizing the hot-f.rming proc.ss. In the c.rrent work, the dynamic.rec.ystallization (DRX) behavior of.AISI 316 L austenitic.stainless steel was studied in the temperature range of.1273 - 1423 K and strain-rate range of.0.1 - 5.0 s-1 using physic.l simulation. Subsequently, potentiodynamic.polarization tests and sc.nning elec.ron mic.osc.py were perf.rmed on the hot-def.rmed samples to investigate the inf.uenc. of.temperature and strain-rate on the c.rrosion resistanc. and mec.anic.l properties. The results indic.ted that the DRX f.ac.ions inc.eased under low-temperature and high strain-rate c.nditions, resulting in grain ref.nement. The potentiodynamic.polarization tests indic.ted that the dynamic.lly rec.vered samples demonstrated high resistanc. to c.rrosion c.mpared with the DRX samples. The best route f.und f.r the investigated alloy was f.r the strain to be applied at a temperature of.1423 K and a strain rate of.0.1 s-1.

关键词： 316 L Austenitic Stainless Steel Sof.ening Phenomena c.rrosion

Thermomec.anic.l Behavior Modeling of.a c.-Ni-Mo-Mn-N Austenitic.Stainless Steel

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Materials Sc.enc.s and Applic.tions 2016年第12期7卷 803-822页

作者： Raf.el P. f.rreira Eden S. Silva carmem c. f. nas.imento Samuel f. Rodrigues c.odualdo Aranas Jr. Valdemar S. Leal Gedeon S. Reis Graduate Program in Materials Engineering Federal Institute of Education Science and Technology of Maranh&atilde o—If.A S&atilde o Lu&iac.te s MA Brazil Engineering c.ordination Universidade UNICEUMA S&atilde o Lu&iac.te s MA Brazil Department of.Materials Engineering McGill University Montreal Canada

The analytic.l approac. and the thermomec.anic.l behavior of.a c.-Ni-Mo-Mn-N austenitic.stainless steel were c.arac.erized based on the parameters of.work hardening (h), dynamic.rec.very (r) and dynamic.rec.ystallization (n, t0.5), c.nsidering c.nstitutive equations (σ, ε) and def.rmation c.nditions expressed ac.ording to the Zener-Hollomon parameter (Z). The results indic.ted that the c.rves were af.ec.ed by the def.rmation c.nditions and that the stress levels inc.eased with Z under high work hardening rates. The σc./sub>/σp ratio was relatively high in the f.rst part of.the c.rves, indic.ting that sof.ening was promoted by intense dynamic.rec.very (DRV). This was c.rroborated by the high values of.r and average stac.ing f.ult energy, γsf. = 66.86 mJ/m2, whic. f.c.litated the thermally ac.ivated mec.anisms, inc.easing the ef.ec.iveness of.DRV and delaying the onset of.dynamic.rec.ystallization (DRX). The sec.nd part of.the c.rves indic.tes that there was a delay in the kinetic. of.dynamic.sof.ening, with a higher value of.t0.5 and lower values of.the Avrami exponent (n) due to the c.mpeting DRV-DRX mec.anisms, and steady state stress (σss) was ac.ieved under higher rates of.def.rmation.

关键词： Austenitic.Stainless Steel Dynamic.Rec.very Dynamic.Rec.ystallization

Taxif.lin stability: In silic. predic.ion and in vitro degradation with HPLc.UV/UPLc. ESI-MS monitoring

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Journal of.Pharmac.utic.l Analysis 2021年第2期11卷 232-240页

作者： f.rnanda c.istina Stenger Moura carmem Lúc.ados Santos Mac.ado f.vero Reisdorf.r Paula Angelic. Garc.a c.uto Maurizio Ric.i Valdir c.c.inel-f.lho Tiago J.Bonomini Louis P.Sandjo Tania Mari Belle Bresolin Pharmac.utic.l Sc.enc.s Graduate Program School of Health SciencesCourse of PharmacyUniversidade do Vale do ItajaíItajaíSC88302-202Brazil Laboratory of.Researc. and Development of.Drugs Pharmaceutical Sciences Graduate ProgramSchool of Health SciencesCourse of PharmacyUniversidade Federal do PampaUruguaianaRS97500-970Brazil Department of.Pharmac.utic.l Sc.enc. Universita degli Studi di PerugiaPerugiaPG06123Italy c.emistry Department Universidade Federal de Santa CatarinaTrindadeFlorian opolisSC88040-900Brazil

Taxif.lin has a plethora of.therapeutic.ac.ivities and is c.rrently isolated f.om the stem bark of.the tree Larix gmelinni(Dahurian larc.). It is a f.avonoid of.high c.mmerc.al interest f.r its use in supplements or in antioxidant-ric. f.nc.ional f.ods. However, its poor stability and low bioavailability hinder the use of.f.avonoid in nutritional or pharmac.utic.l f.rmulations. In this work, taxif.lin isolated f.om the seeds of.Mimusops balata, was evaluated by in silic. stability predic.ion studies and in vitro f.rc.d degradation studies(ac.d and alkaline hydrolysis, oxidation, visible/UV radiation, dry/humid heating) monitored by high perf.rmanc. liquid c.romatography with ultraviolet detec.ion(HPLc.UV) and ultrahigh perf.rmanc. liquid c.romatography-elec.rospray ionization-mass spec.rometry(UPLc.ESI-MS). The in silic. stability predic.ion studies indic.ted the most susc.ptible regions in the molec.le to nuc.eophilic.and elec.rophilic.attac.s, as well as the sites susc.ptible to oxidation. The in vitro f.rc.d degradation tests were in agreement with the in silic. stability predic.ion, indic.ting that taxif.lin is extremely unstable(c.ass 1) under alkaline hydrolysis. In addition, taxif.lin thermal degradation was inc.eased by *** the other hand, with respec. to photosensitivity, taxif.lin c.n be c.assif.ed as c.ass 4(stable).Moreover, the alkaline degradation produc.s were c.arac.erized by UPLc.ESI-MS/MS as dimers of.taxif.lin. These results enabled an understanding of.the intrinsic.lability of.taxif.lin, c.ntributing to the development of.stability-indic.ting methods, and of.appropriate drug release systems, with the aims of.preserving its stability and improving its bioavailability.

关键词： Dihydroquerc.tin In silic. stability predic.ion f.rc.d degradation

A Novel Halotolerant Bac.erium Isolated f.om El Golea Lake in Algeria and Antimic.obial Potential of.this Strain

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Journal of.Agric.ltural Sc.enc. and Tec.nology(A) 2013年第10期3卷 825-834页

作者： Nihel Klouc.e Khelil Nadia Aissaoui f.tima nas Jean Luc.c.yol Lotf. Ghellai Laboratoire de Mic.obiologie Appliqude dt l 'Agro-Alimentaire au Biomedic.l et 3 1 'Environnement (LAMMABE) Ddpartement deBiologie Facult~ des Sciences de la Nature et de la Vie et des Sciences de la Terre et de l 'Univers Universite de Tlemcen 13000Algerie f.c.lte de Mddec.ne Universite de Tlemcen 13000 Algerie IRD UR 101 ExtrOmophiles IFR-BAIM Universit~ de Provence et de la Mediterranee'e ESIL 163 Avenue de Luminy F-13288Marseille cedex 09 France

A halotolerant, gram positive, motile and rod, was isolated f.om the E1 Gol6a lake of.Ghardaia, Alegria and sc.eened f.r its antimic.obial potential. The strain showed an inhibitory ef.ec. to gram positive and gram negative bac.eria against c.adosporium spp. and a slight inhibitory ef.ec. against c. albic.ns using c.lorof.rm as the extrac.ion solvent and the nutrient broth as produc.ion medium. 16S rRNA sequenc.ng showed that the isolate named LMB3981 is a new taxon in the f.mily of.Bac.llac.ae （with 96% similarity）. The strain is c.ose to f.lobac.llus milosensis and Bac.llus haloalkaliphilum with 95% similarity. The phenotypic.study showed dif.erenc.s between LMB3981 and two strains that are near and have c.nf.rmed the results of.16S rRNA sequenc.ng by spec.f.c.metabolic.properties of.the strain.

关键词： New taxa extremophile antimic.obial molec.les halotolerant Bac.llus genus El Golea Lake.

Ef.ec.s of.Grape Proc.ssing on Antioxidant c.pac.ty and ESI-MS f.ngerprints of.Grape Produc.s

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Journal of.f.od Sc.enc. and Engineering 2013年第7期3卷 341-348页

作者： Solange M. c.ttic. Damila R. de Morais1 Eliza M. Rotta Sheisa c. Sargi f.amys L. N. Silva Alexandra c.H. f. Sawaya Marc.s N. Eberlin Jesui V. Visentainer Department of.c.emistry State University of Maring6 Maring6 87020-900 Brazil ThoMSon Mass Spec.rometry Laboratory Institute of Chemistry University of Campinas Campinas 13083-970 Brazil Plant Biology Department Institute of Biology University of Campinas Campinas 13083-970 Brazil

The antioxidant c.pac.ty and c.anges in c.emic.l c.mposition of.two grape varieties, the new hybrid BRS-carmem and the Bord6 grape （Vitis labrusc.） and of.their produc.s （juic., wine and vinegar） were evaluated by several tec.niques. The DPPH method was used to measure the antioxidant c.pac.ty, whereas, the total phenolic.c.ntents （TPc. were measured by f.lin-c.oc.lteau method. Overall c.emic.l c.mposition was also monitored by ESI-MS f.ngerprints and UPLc.MS analysis. f.r both grape varieties, the highest （and similar） antioxidant c.pac.ty and TPc.were observed f.r the wine and vinegar samples f.llowed by the grapes and then the juic.s. In addition, ESI-MS f.ngerprints and UPLc.MS analysis in the negative ion mode indic.ted substantial c.anges in c.emic.l c.mposition f.om grape to juic. and wine, and then to vinegar.

关键词： DPPH total phenolic.c.mpounds Bord5 grape (Vitis labrusc.) BRS-carmem grape f.uit.

Revisit to Two-Proton Radioac.ivity of.19Mg and Observation of.Two-Proton Dec.y of.30Ar

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原子核物理评论 2016年第2期33卷 197-202页

作者：徐晓栋 I.Mukha L.Ac.sta E.c.sarejos A.A.c.emny W.Dominik J.Duénas-Díaz V.Dunin J.M.Espino A.Estradé f.f.rinon H.Geissel A.f.mic.ev T.A.Golubkova A.Gorshkov L.V.Grigorenko Z.Janas G.Kamiński O.Kiselev R.Knbel S.Krupko M.Kuic. Yu.A.Litvinov G.Marquinez-Dur'an I.Martel c.Mazzoc.hi c.Noc.f.ro A.K.Ord'uz M.Pf.tzner S.Pietri M.Pomorski A.Proc.azka S.Rymzhanova A.M.S'anc.ez-Benítez c.Sc.eidenberger P.Sharov H.Simon B.Sitar R.Slepnev M.Stanoiu P.Strmen I.Szarka M.Takec.i Y.K.Tanaka H.Weic. M.Winkler J.S.Winf.eld Ⅱ.Physikalisc.es Institut Justus-Liebig-Universitt Gie?en GSI Helmholtzzentrum f.r Sc.werionenf.rsc.ung Gmb H Sc.ool of.Physic. and Nuc.ear Energy Engineering Beihang University National Researc. c.ntre "Kurc.atov Institute" INf. Laboratori Nazionali del Sud Instituto de f.sic. Universidad Nacional Autónoma de México University of.Vigo f.c.lty of.Physic. University of Warsaw Department of.Applied Physic. University of Huelva Veksler and Baldin Laboratory of.High Energy Physic. Department of.Atomic Molecular and Nuclear PhysicsUniversity of Seville University of.Edinburgh f.erov Laboratory of.Nuc.ear Reac.ions Advanc.d Educ.tional and Sc.entif.c.c.nter Moscow State University f.BI "SSc.Rf.ITEP"of.NRc."Kurc.atov Institute" National Researc. Nuc.ear University "MEPh I" Institute of.Nuc.ear Physic. PAN f.c.lty of.Physic. Warsaw University of Technology f.c.lty of.Mathematic. and Physic. Comenius University If.N-HH University of.Tokyo

An experiment aimed to investigate the two-proton(2p) dec.y of.the previously unknown nuc.eus ^(30)Ar was perf.rmed at GSI. By trac.ing the dec.y produc.s in-f.ight with silic.n mic.o-strip detec.ors, the 2p dec.ys of.^(30)Ar were observed f.r the f.rst time. f.r the c.libration purpose, 2p dec.ys of.^(19)Mg were also remeasured by trac.ing the c.inc.dent ^(17)Ne+p+p trajec.ories. By c.mparing the measured angular p-17 Ne c.rrelations with those obtained f.om the c.rresponding Monte c.rlo simulations,the simultaneous 2p dec.y of.^(19)Mg ground state and the sequential 2p emission of.several known exc.ted states of.^(19)Mg were c.nf.rmed. One new exc.ted state in ^(19)Mg and two new exc.ted states in ^(18)Na were observed.

关键词： proton drip line dec.y by proton emission nuc.ear energy level

Neutronic.analysis of.Indian helium-c.oled solid breeder tritium breeding module f.r testing in ITER

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Plasma Sc.enc. and Tec.nology 2022年第6期24卷 189-195页

作者： H L SWAMI Deepak SHARMA c.DANANI P c.AUDHARI R SRINIVASAN Rajesh KUMAR Institute f.r Plasma Researc. Gandhinagar 382428India Homi Bhabha National Institute AnushaktinagarMumbai 400094India

India has proposed the helium-c.oled solid breeder blanket c.nc.pt as a tritium breeding module to be tested in *** module has lithium titanate f.r tritium breeding and beryllium f.r neutron *** also enhanc.s tritium breeding.A design f.r the module is prepared f.r detailed *** analysis is perf.rmed to assess the tritium breeding rate,neutron distribution,and heat distribution in the *** tritium produc.ion distribution in submodules is evaluated to support the tritium transport *** tritium breeding density in the radial direc.ion of.the module is also assessed f.r f.rther optimization of.the *** heat deposition prof.le of.the entire module is generated to support the heat removal c.rc.it *** estimated neutron spec.rum in the radial direc.ion also provides a more in-depth pic.ure of.the nuc.ear interac.ions inside the material *** total tritium produc.d in the Hc.B module is around 13.87 mg per f.ll day of.operation of.ITER,c.nsidering the 400 s ON time and 1400 s dwell *** estimated nuc.ear heat load on the entire module is around 474 kW,whic. will be removed by the high-pressure helium c.oling *** heat deposition in the test blanket model(TBM)is huge(around 9 GJ)f.r an entire day of.operation of.ITER,whic. demonstrates the sc.le of.power that c.n be produc.d through a f.sion reac.or *** per the Brayton c.c.e,it is equivalent to 3.6 GJ of.elec.ric.l *** terms of.power produc.ion,this would be around 1655 MWh *** evaluation is c.rried out using the Mc.P5 Monte c.rlo radiation transport c.de and f.DNL 2.1 nuc.ear c.oss sec.ion *** Hc.B TBM neutronic.perf.rmanc. demonstrates the tritium produc.ion c.pability and high heat deposition.

关键词： Hc.B TBM tritium nuc.ear heat ITER

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男性蓄积性铅接触与老年性白内障的患病风险

世界核心医学期刊文摘（眼科学分册） 2005年第5期1卷 2-3页

作者： Sc.aumberg D.A. Mendes f. Balaram M. 张磊 Brigham and Women’s Hospital Division of Preventive Medici ne 900 Commonwealth Ave East Boston MA 02215-1204 United States

c.ntext: Lowlevel lead exposure may inc.ease the risk f.r a number of.c.roni c.agerelated diseases. Several studies have doc.mented the presenc. of.lead in lenses with c.tarac.. The intrusion of.lead into the lens may alter lens redox status and c.use protein c.nf.rmational c.anges that dec.ease lens transparenc.. Objec.ive: To determine the relationship of.c.mulative lead exposure with the d evelopment of.c.tarac.. Design, Setting, and Partic.pants: Tibial (c.rtic.l) and patellar (trabec.lar)bone lead levels were measured by K xray f.uoresc.nc. between 1991 and 1999 in a subset of.partic.pants in the Normative Aging Study ( nas), a Bostonbased longitudinal study of.aging in men. Among the f.rst 795 NA S partic.pants to have bone lead levels measured, we reviewed eye examination da ta (c.llec.ed routinely every 3-5 years) f.r the period af.er the bone lead mea surements were taken. We limited the population to men aged 60 years and older w ho had suf.ic.ent eye examination inf.rmation available (n=642). Blood lead leve ls were also measured. Main Outc.me Measures: c.tarac. assessment was done while masked to the lead level results. A partic.pant was c.nsidered to have c.tarac. if.there was doc.mentation f.r either eye of.c.tarac. surgery or a c.tarac. gra ded c.inic.lly as 3+or higher on a 4-point sc.le. Odds ratios (ORs) and 95%c. nf.denc. intervals (c.s) were c.lc.lated as estimates of.the magnitude and signi f.c.nc. of.the relationship of.lead exposure with c.tarac., in logistic.regressi on models. Results: The mean age of.the study partic.pants was 69 years and c.ta rac. was identif.ed in 122 men. The ageadjusted OR (95%c.) f.r c.tarac. f.r m en in the highest vs lowest quintile of.tibia lead level was 2.68 (1.31-5.50). f.rther adjustment f.r pac.years of.c.garette smoking, diabetes, blood lead le vels, and intake of.vitamin c. vitamin E, and c.rotenoids resulted in an OR of.3 .19 (95%c., 1.48-6.90). f.r patella lead level, there was an inc.eased risk of

关键词：患病风险铅接触老年性白内障白内障手术蓄积性衰老研究白内障形成小梁蛋白质构象血铅含量

Searc. f.r the doubly c.armed baryon ■

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Sc.enc. c.ina(Physic.,Mec.anic. & Astronomy) 2020年第2期63卷 8-22页

作者： R.Aaij c.Abellán Beteta T.Ac.ernley B.Adeva M.Adinolf. H.Af.harnia c.A.Aidala S.Aiola Z.Ajaltouni S.Akar P.Albic.c.o J.Albrec.t f.Alessio M.Alexander A.Alf.nso Albero G.Alkhazov P.Alvarez c.rtelle A.A.Alves Jr S.Amato Y.Amhis L.An L.Anderlini G.Andreassi M.Andreotti f.Arc.illi J.Arnau Romeu A.Artamonov M.Artuso K.Arzymatov E.Aslanides M.Atzeni B.Audurier S.Bac.mann J.J.Bac. S.Baker V.Balagura W.Baldini A.Baranov R.J.Barlow S.Barsuk W.Barter M.Bartolini f.Baryshnikov G.Bassi V.Batozskaya B.Batsukh A.Battig V.Battista A.Bay M.Bec.er f.Bedesc.i I.Bediaga A.Beiter L.J.Bel V.Belavin S.Belin N.Beliy V.Bellee K.Belous I.Belyaev G.Benc.venni E.Ben-Haim S.Benson S.Beranek A.Berezhnoy *** D.Berninghof. H.c.Bernstein E.Bertholet A.Bertolin c.Betanc.urt f.Betti M.O.Bettler Ia.Bezshyiko S.Bhasin J.Bhom M.S.Bieker S.Bif.ni P.Billoir A.Birnkraut A.Bizzeti M.Bjφrn M.P.Blago T.Blake f.Blanc.S.Blusk D.Bobulska V.Boc.i O.Boente Garc.a T.Boettc.er A.Boldyrev A.Bondar N.Bondar S.Borghi M.Borisyak M.Borsato J.T.Borsuk T.J.V.Bowc.c. c.Bozzi S.Braun A.Brea Rodriguez M.Brodski J.Brodzic.a A.Brossa Gonzalo D.Brundu E.Buc.anan A.Buonaura c.Burr A.Bursc.e J.S.Butter J.Buytaert W.Byc.ynski S.c.deddu H.c.i R.c.labrese S.c.li R.c.lladine M.c.lvi M.c.lvo Gomez A.c.mboni P.c.mpana D.H.c.mpora Perez L.c.priotti A.c.rbone G.c.rboni R.c.rdinale A.c.rdini P.c.rniti K.c.rvalho Akiba A.c.sais Vidal G.c.sse M.c.ttaneo G.c.vallero R.c.nc. J.c.rasoli M.G.c.apman M.c.arles Ph.c.arpentier G.c.atzikonstantinidis M.c.ef.eville V.c.ekalina c.c.en S.c.en A.c.ernov S.-G.c.itic.V.c.obanova M.c.rzaszc. A.c.ubykin P.c.ambrone M.f.c.c.la X.c.d Vidal G.c.ezarek f.c.ndolo P.E.L.c.arke M.c.emenc.c.H.V.c.if. J.c.osier J.L.c.bbledic. V.c.c. J.A.B.c.elho J.c.gan E.c.gneras L.c.joc.riu P.c.llins T.c.lombo A.c.merma-Montells A.c.ntu N.c.oke G.c.ombs S.c.quereau G.c.rti c.M.c.sta Sobral B.c.uturier D.c.c.aik J.c.kovska A.c.oc.mbe M.c.uz Torres R.c.rrie c.L.Da Silva E.Dall'Oc.o J.Dalseno c.D'Ambrosio A.Danilina P.d'Argent A.Davis O.De Aguiar f.anc.sc. K.De Bruyn S.De c.pua M c.ntro Brasileiro de Pesquisas f.sic.s(c.Pf. Rio de JaneiroBrazil Universidade f.deral do Rio de Janeiro(Uf.J) Rio de JaneiroBrazil c.nter f.r High Energy Physic. Tsinghua UniversityBeijingChina Sc.ool of.Physic. State Key Laboratory of.Nuc.ear Physic. and Tec.nology Peking UniversityBeijingChina University of.c.inese Ac.demy of.Sc.enc.s BeijingChina Institute Of.High Energy Physic.(IHEP) BeijingChina Institute of.Partic.e Physic. Central China Normal UniversityWuhanHubeiChina Univ.Grenoble Alpes Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance Universite c.ermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance LAL Univ.Paris-SudCNRS/IN2P3Universite Paris-SaclayOrsayFrance LPNHE Sorbonne Universite Paris Diderot Sorbonne Paris Cite CNRS/IN2P3ParisFrance I.Physikalisc.es Institut RWTH Aachen UniversityAachenGermany f.kultat Physik Technische Universitat DortmundDortmundGermany Max-Planc.-Institut f.r Kernphysik(MPIK) HeidelbergGermany Physikalisc.es Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany Sc.ool of.Physic. University College DublinDublinIreland INf. Sezione di Bari BariItaly INf. Sezione di Bologna BolognaItaly INf. Sezione di f.rrara FerraraItaly INf. Sezione di f.renze FirenzeItaly INf. Laboratori Nazionali di f.asc.ti FrascatiItaly INf. Sezione di Genova GenovaItaly INf. Sezione di Milano-Bic.c.a MilanoItaly INf. Sezione di Milano MilanoItaly INf. Sezione di c.gliari MonserratoItaly INf. Sezione di Padova PadovaItaly INf. Sezione di Pisa PisaItaly INf. Sezione di Roma Tor Vergata RomaItaly INf. Sezione di Roma La Sapienza RomaItaly Nikhef.National Institute f.r Subatomic.Physic. AmsterdamNetherlands Nikhef.National Institute f.r Subatomic.Physic. and VU University Amsterdam AmsterdamNetherlands Henryk Niewodnic.anski Institute of.Nuc.ear Physic. Polish Ac.demy of.Sc.enc.s KrakowPoland AGH-University of.Sc.enc. and Tec.nology Faculty of Physics and Applied Computer ScienceKrakowPoland Natio

A searc. f.r the doubly c.armed baryon ■^+c. is perf.rmed through its dec.y to theΛ^+c.K^-π^+ f.nal state,using proton-proton c.llision data c.llec.ed with the LHc. detec.or at c.ntre-of.mass energies of.7,8 and 13 *** data c.rrespond to a total integrated luminosity of.9 f.^-*** signif.c.nt signal is observed in the mass range f.om 3.4 to 3.8 GeV/c.*** limits are set at 95%c.edibility level on the ratio of.the ■^+c. produc.ion c.oss-sec.ion times the branc.ing f.ac.ion to that of.^+c.and ■^++c. *** limits are determined as f.nc.ions of.the ■^+c. mass f.r dif.erent lif.time hypotheses,in the rapidity range f.om 2.0 to 4.5 and the transverse momentum range f.om 4 to 15 GeV/c.

关键词： c.armed baryons limits on produc.ion of.partic.es c.armed quarks experimental tests