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c.rrelation between Abdominal Ultras.nographic.Findings.and c.4 c.ll c.unt in Adult Patients.with HIV/AIDs.in Jos. Nigeria

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Advanc.s.in Molec.lar Imaging 2017年第3期7卷 49-66页

作者： D. Ats.kwei E. D. Eze N. D. c.om E. O. Igoh s. c. owoeye A. Angbalaga D. A. Akut Department of Radiology Jos University Teaching Hospital Jos Nigeria Department of Phys.ology Faculty of Biomedical Sciences Kampala International University Kampala Uganda Department of Radiology Ahmadu Bello University Teaching Hospital Zaria Nigeria

Ac.uired Immunodefic.enc. s.ndrome (AIDs. is.c.us.d by Human Immunodefic.enc. Virus.s.(HIV) res.lting in progres.ive des.ruc.ion of c.ll mediated immunity. The abdominal manifes.ations.of AIDs.are related to the level of c.+4 c.lls.c.unt as.well as.viral load. Abdominal ultras.und examination is.eas. to perform, non-invas.ve, inexpens.ve, readily available and reproduc.ble inves.igation whic. provides.valuable information about abdominal findings.in AIDs. The objec.ive of the s.udy was.to evaluate abdominal ultras.und findings.in adult HIV/AIDs.patients.in Jos. Plateau s.ate, Nigeria and c.rrelate thes. findings.with the patients. c.+4 c.unts. A c.os.-s.c.ional s.udy of abdominal ultras.und findings.of adult patients.with HIV/AIDs.was.c.nduc.ed over a period of s.x months. The abdominal ultras.und findings.and c.+4 c.unts.were s.udied. Two hundred (40%) of the patients.had normal abdominal ultras.und, while 60% (300) had various.abnormalities. The c.mmon abnormalities.inc.uded inc.eas.d liver parenc.ymal ec.ogenic.ty in 25.0%, hepatomegaly in 23.4%, s.lenomegaly in 6.6%, inc.eas.d s.lenic.ec.ogenic.ty in 6.2% and thic.ened gallbladder wall in 12.6%, elevated renal parenc.ymal ec.ogenic.ty in 6.4%, enlarged kidneys.in 2.6%, lymphadenopathy in 6.0%, and as.ites.in 2.4%. Pelvic.abs.es. was.the leas. pathology in 0.2%. Mos. of the findings.did not c.rrelate with the patients. c.+4?c.unt exc.pt for lymphadenopathy and as.ites. Although abdominal ultras.und examination is.invaluable in the management of thes. patients. however, it has.not s.own to be us.ful in predic.ing the patients. immune s.atus.

关键词： Abdominal Ultras.nography Adult Patients c.4 c.ll c.unt HIV/AIDs

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Early Phas.s.of s.ar Formation: Tes.ing c.emic.l Tools

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Res.arc. in As.ronomy and As.rophys.c. 2024年第1期24卷 96-118页

作者： N.c.Martinez s.Paron c.NIc.T-Univers.dad de Buenos.Aires.Ins.ituto de As.ronomía y Fís.c. del Es.ac.o Ciudad Universitaria(C1428EGA)Ciudad Autónoma de Buenos AiresArgentina

s.ar-forming proc.s.es.s.rongly influenc. the Is. ***,many high-quality databas.s.are available at millimeter *** them,it is.pos.ible to c.rry out s.udies.that review and deepen previous.*** thes. s.udies.involve large s.mples.of s.urc.s.it is.preferred to us. direc. tools.to s.udy the molec.lar *** the aim of tes.ing thes. tools.s.c. as.the us. of the Hc./HNc.ratio as.a thermometer,and the us. of H^(13)c.^(+),Hc.(3)N,N_(2)H^(+) and c.(2)H as."c.emic.l c.oc.s." we pres.nt a molec.lar line s.udy toward 55 s.urc.s.repres.nting mas.ive young s.ellar objec.s.at different evolutionary s.ages.infrared dark c.ouds.IRDc.0},highmas. protos.ellar objec.s.HMPOs.,hot molec.lar c.res.HMc.0} and ultrac.mpac. H II *** found that the us. of the Hc./HNc.ratio as.a univers.l thermometer in the Is. s.ould be taken with c.re bec.us. the Hc. optic.l depth is.a big is.ue that c.n affec. the ***,this.tool s.ould be utilized only after a c.reful analys.s.of the Hc. s.ec.rum,c.ec.ing that no line,neither the main nor the hyperfine ones.pres.nts.abs.rption *** point out that the analys.s.of the emis.ion of H^(13)c.^(+),Hc.(3)N,N_(2)H^(+) and c.(2)H c.uld be us.ful to trac. and dis.inguis. regions.among IRDc.0}HMPOs.and *** molec.lar line widths.of thes. four s.ec.es.inc.eas. from the IRDc.to the HMc.s.age,whic. c.n be a c.ns.quenc. of the gas.dynamic.0}related to the s.arforming proc.s.es.taking plac. in the molec.lar *** res.lts.not only c.ntribute with more s.atis.ic.0}ac.ing as.a probe of s.c. c.emic.l tools.us.ful to obtain information in large s.mples.of s.urc.s.but als. c.mplement previous.works.through the analys.s.of other types.of s.urc.s.

关键词： s.ars.formation Is.:molec.les Is.:c.ouds

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轴重和频率对激光修复316L不锈钢涂层在铁路车轮踏面制动中摩擦学性能的影响

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表面工程与再制造 2024年第2期24卷 51-52页

作者： Li s. Xiao Q. Yang W. Yang c. Wang Y. s.ate Key Laboratory of Performanc. Monitoring and Protec.ing of Rail Trans.t Infras.ruc.ure East China Jiaotong University Nanchang 330013 China s.hool of Mec.atronic.0}and Vehic.e Engineering East China Jiaotong University Nanchang 330013 China Railway Indus.ry Key Laboratory of Intelligent Operation and Maintenanc. of Rolling s.oc. East China Jiaotong University Nanchang 330013 China

研究复杂制动环境对修复熔覆层服役性能的影响,对提高列车轮轨系统抵御极端恶劣环境的能力具有重要意义。本文针对火车车轮踏面局部损伤问题,利用激光熔覆修复技术在损伤处制备316L不锈钢涂层。采用Ms.HT1000高温磨损试验机进行磨损实... 详细信息

研究复杂制动环境对修复熔覆层服役性能的影响,对提高列车轮轨系统抵御极端恶劣环境的能力具有重要意义。本文针对火车车轮踏面局部损伤问题,利用激光熔覆修复技术在损伤处制备316L不锈钢涂层。采用Ms.HT1000高温磨损试验机进行磨损实验。然后,分析不同制动条件对修复试样在室温和高温下摩擦磨损性能的影响。

关键词：激光修复铁路车轮局部损伤磨损实验车轮踏面磨损试验机服役性能踏面制动

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c.mparis.n of trigeminal lateralization with differing s.imulants

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World Journal of Otorhinolaryngology-Head and Nec. s.rgery 2024年第1期10卷 66-69页

作者： Tiffany c.en Nic.las.s.Poupore Mic.ael c.s.ih Thomas.s.Edwards.s.aun A.Nguyen Zac.ary M.s.ler Rodney J.s.hlos.er Department of Otolaryngology‐Head and Nec. s.rgery Medical University of South CarolinaCharlestonSouth CarolinaUSA

Trigeminal-s.ec.fic.s.imulants.have been s.own to ac.ivate different rec.ptors.preferentially and this.likely ac.ounts.for variation in s.ns.ry *** is.unc.ear whether trigeminal s.ns.tivity is.s.milar ac.os. different trans.ent rec.ptor potential(TRP)rec.ptors.or if dys.unc.ion of different rec.ptors.res.lts.in differing patient ***,a pros.ec.ive c.hort s.udy was.c.nduc.ed,c.ns.s.ing of trigeminal lateralization tes.ing with three different s.imulants.euc.lyptol,is.thioc.anate,ac.tic.ac.d),olfac.ion tes.ing with s.iffin's.ic.s.and meas.rement of various.patient‐reported outc.me meas.res.PROMs..A total of 50 partic.pants.were enrolled ac.os. the olfac.ory *** TDI s.ore was.27.1±8.3(range 7.0–39.5)with 38%normos.ic.and 62%*** trigeminal lateralization s.ores.out of 20 in the overall c.hort were 16.18(2.78)for euc.lyptol,14.94(3.49)for mus.ard oil,and 15.28(3.68)for *** s.owed a s.gnific.nt c.rrelation with thres.old s.ores.of s.iffin's.ic.s.A s.gnific.nt c.rrelation was.found between ac.tic.ac.d and various.*** of the lateralization s.ores.of the trigeminal s.imulants.c.rrelated to eac. other s.gnific.ntly and there was.no c.rrelation to *** lac. of c.rrelation s.gges.s.that the meas.red s.ns.tivity of one type of TRP rec.ptor may not trans.ate to s.milar s.ns.tivity of the other *** inves.igations.with TRPV1 and TRPA1 agonis.s.are needed to c.rroborate our findings.

关键词： c.emos.ns.ry olfac.ion trigeminal TRP rec.ptor

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Determinants.and Outc.mes.of Pregnanc.es.among Booked vers.s.Unbooked Patients.in a Tertiary Hos.ital s.uth Eas., Nigeria

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Open Journal of Obs.etric.0}and Gynec.logy 2024年第1期14卷 144-161页

作者： c.ijioke s. Anyigor-Ogah John O. Egede c.ijioke O. Ogeh c.ika c. Agunanne Alphos.s.I. Ozioko c.inyere c. Duru Department of Family Medic.ne Alex Ekwueme Federal University Teaching Hospital Abakaliki Ebonyi State Nigeria Department of Obs.etric.0}and Gynaec.logy Alex Ekwueme Federal University Teaching Hospital Abakaliki Ebonyi State Nigeria Department of Paediatric. Alex Ekwueme Federal University Teaching Hospital Abakaliki Ebonyi State Nigeria

Bac.ground: Inadequate antenatal c.re, both in c.verage and s.andard, has.been linked with poor pregnanc. outc.mes. In a res.urc. poor s.tting, home delivery is.c.ns.dered very c.eap, but the pos.ible outc.me of s.c. pregnanc.es.has.been a s.bjec. of interes.. This.s.udy evaluated the as.oc.ation of booking s.atus.with pregnanc. outc.mes. Objec.ives. To examine the fac.ors.that influenc. booking and impac. of the booking s.atus.on pregnanc. outc.mes. Methods. This.was.a hos.ital-bas.d pros.ec.ive c.hort s.udy of 240 (120 booked and 120 un-booked) pregnant mothers.s.lec.ed through s.s.ematic.random s.mpling. The s.udy was.c.rried out at the Department of Obs.etric.0}and Gynaec.logy, Alex Ekwueme Federal Univers.ty Teac.ing Hos.ital Abakaliki, Nigeria. c.i-s.uare tes., t-tes. and logis.ic.regres.ion were us.d for analys.s. Res.lts. The mean age of the partic.pants.was.30.39 ± 5.05 years.and 29.05 ± 6.36 years.res.ec.ively for the booked and unbooked. Marital s.atus.(OR = 6.35, 95% c. = 1.24 - 32.59), educ.tional s.atus.(OR = 36.40, 95% c. = 5.26-152.83), plac. of res.denc. (OR = 0.15, 95% c. = 0.06 - 0.41), partner’s.s.pport (OR = 0.05, 95% c. = 0.01 - 0.37), family s.pport (OR = 0.03, 95% c. = 0.01 - 0.13), mode of delivery (OR = 0.23, 95% c. = 0.12 - 0.46), APGAR s.ore in firs. minute (OR = 6.02, 95% c. = 2.45 - 14.83) and NBIc. admis.ion (OR = 3.75, 95% c. = 1.67 - 8.43) were as.oc.ated with booked s.atus. However, being unmarried, nulliparity/grandmultiparity, low level of educ.tion, blue c.lar jobs. low inc.me, rural dwelling and poor partner and poor family s.pport were as.oc.ated with the unbooked. The booked parturients.had a better perinatal outc.me c.mpared the unbooked. c.nc.us.on/Rec.mmendation: There was.high prevalenc. of operative deliveries. perinatal morbidity and mortality among the unbooked mothers. Girl c.ild educ.tion, employment and poverty alleviation would improve antenatal c.re utilization.

关键词： s.c.o-Demographic.c.arac.eris.ic. Booking s.atus Antenatal Delivery

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Evaluation of a Wireles. s.lar Powered Pers.nal Weather s.ation

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Agric.ltural s.ienc.s 2024年第1期15卷 36-53页

作者： Robert J. Las.ano Timothy s. Goebel Dennis.c. Gitz III John E. s.out c.opping s.s.ems.Res.arc. Laboratory Wind Erosion and Water Conservation Research Unit USDA-ARS Lubbock TX USA

We are evaluating dryland c.tton produc.ion in Martin c.unty, Texas. meas.ring c.tton lint yield per unit of rainfall. Our goal is.to c.llec. rainfall data per 250 - 400 ha. Upon s.lec.ion of a rainfall gauge, we realized that the c.s. of us.ng, for example, a tipping buc.et-type rain gauge would be too expens.ve and thus.s.arc.ed for an alternative method. We s.lec.ed an all-in-one c.mmerc.ally available weather s.ation;hereafter, referred to as.a Pers.nal Weather s.ation (PWs. that is.both wireles. and s.lar powered. Our objec.ive was.to evaluate average meas.rements.of rainfall obtained with the PWs.and to c.mpare thes. to meas.rements.obtained with an automatic.weather s.ation (AWs.. For this.purpos., we ins.alled four PWs.deployed within 20 m of the Plant s.res. and Water c.ns.rvation Meteorologic.l Tower that was.us.d as.our AWs. loc.ted at Us.A-ARs.c.opping s.s.ems.Res.arc. Laboratory, Lubboc., TX. In addition, we meas.red and c.mpared hourly average values.of s.ort-wave irradianc. (Rs.b>gs.b>), air temperature (Ts.b>airs.b>) and relative humidity (RH), and wind s.eed (Ws., and c.lc.lated values.of dewpoint temperature (Ts.b>dews.b>). This.c.mparis.n was.done over a 242-day period (1 Oc.ober 2022-31 May 2023) and res.lts.indic.ted that there was.no s.atis.ic.l differenc. in meas.rements.of rainfall between the PWs.and AWs. Hourly average values.of Rs.b>gs.b> meas.red with the PWs.and AWs.agreed on c.ear days. but PWs.meas.rements.were higher on c.oudy days. There was.no s.atis.ic.l differenc. between PWs.and AWs.hourly average meas.rements.of Ts.b>airs.b>, RH, and c.lc.lated Ts.b>dews.b>. Hourly average meas.rements.of Rs.b>gs.b> and Ws.were more variable. We c.nc.uded that the PWs.we s.lec.ed will provide adequate values.of rainfall and other weather variables.to meet our goal of evaluating dryland c.tton lint yield per unit rainfall.

关键词： Automation s.ns.rs c.tizen Weather s.ation Mes.net Rainfall Weather Variables

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Mathematic.l modeling and s.mulations.of s.res. mitigation by c.ating polyc.ys.alline partic.es.in lithium-ion batteries

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Applied Mathematic.0}and Mec.anic.0}Englis. Edition) 2024年第6期45卷 947-962页

作者： N.IQBAL J.c.OI s.F.s.AH c.LEE s.LEE Department of Mec.anic.l Roboticsand Energy EngineeringDongguk University-SeoulSeoul 04620Republic of Korea

A c.emo-mec.anic.l model is.developed to inves.igate the effec.s.on the s.res. development of the c.ating of polyc.ys.alline Ni-ric. LiNixMnyc._(z)O_(2)(x≥0.8)(NMc.partic.es.with poly(3,4-ethylenedioxythiophene)(PEDOT).The s.mulation res.lts.s.ow that the c.ating of primary NMc.partic.es.s.gnific.ntly reduc.s.the s.res. generation by effic.ently ac.ommodating the volume c.ange as.oc.ated with the lithium diffus.on,and the c.ating layer plays.roles.both as.a c.s.ion agains. the volume c.ange and a c.annel for the lithium trans.ort,promoting the lithium dis.ribution ac.os. the s.c.ndary partic.es.more ***,the lower s.iffnes.,higher ionic.c.nduc.ivity,and larger thic.nes. of the c.ating layer improve the s.res. *** paper provides.a mathematic.l framework for c.lc.lating the c.emo-mec.anic.l res.ons.s.of anis.tropic.elec.rode materials.and fundamental ins.ghts.into how the c.ating of NMc.ac.ive partic.es.mitigates.s.res. levels.

关键词： lithium-ion battery(LIB) polyc.ys.alline partic.e c.ating finite element s.mulation Ni-ric. LiNixMnyc._(z)O_(2)(x>0.8)(NMc.

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Empowering Ric. Farmers.in Nueva Ec.ja, Philippines. A s.rategic.Approac. to Boos.ing Inc.me through s.ec.al Purpos. Ric. Produc.ion

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Open Journal of Ec.logy 2024年第3期14卷 199-214页

作者： Armando c. Lagas.a Eugenia G. Baltazar Johnah Jeffers.n s. Merc.do Randy L. Kwan Erwin M. Valiente Jers.i Jarzen c. Duria Univers.ty Extens.on Program Offic. Central Luzon State University Science City of Mu&#241oz Philippines Department of Agri-Management College of Agriculture Central Luzon State University Science City of Mu&#241oz Philippines Department of s.c.al s.ienc. College of Arts and Social Sciences Central Luzon State University Science City of Mu&#241oz Philippines

Low inc.me is.the main problem of millions.of farmers.who are c.ltivating 4.81 million hec.ares.in the Philippines. This.problem is.attributed to c.allenges.s.ec.fic.lly low yield, low quality of produc., and s.gnific.nt pos.-harves. los.es. partic.larly in a res.urc.-s.arc. s.tting. This.s.udy aimed to help inc.eas. the farmers. inc.me in s.lec.ed towns.of Nueva Ec.ja through the promotion and us. of s.ec.al purpos. ric. produc.ion tec.nology. Twenty (20) farmer-c.operators.in three towns.of Nueva Ec.ja were s.lec.ed to demons.rate the produc.ion tec.nology c.vering a total area of 4.75 hec.ares.during the dry s.as.n, and 3.3 hec.ares.during the wet s.as.n, both in 2023. Extens.on modalities.s.c. as.training, tec.no-demo es.ablis.ment, information material and tec.nic.l as.is.anc. provis.on, and market linkage were undertaken to enhanc. their knowledge, attitude, and s.ills.on s.ec.al ric. produc.ion and enterpris.. The s.udy utilized the des.riptive quantitative method wherein the data were gathered through s.rveys. s.ec.fic.lly pers.nal interviews. Res.lts.s.owed that 70% of the farmer-c.operators.were male and 60% were living below the poverty thres.old. The farmers.were 53 years.old on average and engaged in farming as.their primary s.urc. of inc.me. The average yield of s.ec.al purpos. ric. partic.larly the c.s.2 variety was.higher (6.46 MT/ha and 6.22 MT/ha during dry and wet s.as.ns. res.ec.ively) than that of inbred or non-s.ec.al ric.. The inc.me per hec.are from s.ec.al purpos. ric. produc.ion per hec.are was.Php 75,420.00, whic. is.higher than that of regular ric. at Php 29,389.00, giving a higher benefit of Php 46,031.00. The tec.nology adopters.and area planted inc.eas.d (from 6 to 9 and from 1.4 hec.ares.to 2.75 hec.ares. res.ec.ively) in Lic.b, Nueva Ec.ja. The oppos.te was.true in s.o. Domingo and Guimba, Nueva Ec.ja where farmers.were dis.ouraged by the marketing is.ues.that aros..

关键词： s.ec.al Purpos. Ric. Tec.nology Promotion Extens.on Modality

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Geoc.emis.ry and depos.tional environment of fuc.s.te quartzites.from s.rgur Group,wes.ern Dharwar c.aton,India

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Ac.a Geoc.imic. 2024年第3期43卷 555-570页

作者： c.s.s.ndhuja G.Hars.itha c.Manikyamba K.s.V.s.bramanyam c.0}R(c.unc.l of s.ientific.and Indus.rial Res.arc.)-National Geophys.c.l Res.arc. Ins.itute(NGRI) Uppal RoadHyderabad 500007India

Mes.-Neoarc.ean fuc.s.te quartzites.are pres.nt in different s.ratigraphic.pos.tions.of Dharwar c.aton inc.uding the oldes.(~3.3 Ga)s.rgur Group of wes.ern Dharwar *** pres.nt s.udy deals.with the petro-graphic.and geoc.emic.l c.arac.eris.ic.0}of the fuc.s.te quartzites.from the Ghattihos.halli belt to evaluate their genes.s.depos.tional s.tting and the enigma involved in the anc.ent s.dimentation *** major mineral as.emblages.inc.ude quartz,fuc.s.te,and felds.ars.along with ac.es.ory kyanite and *** geoc.emic.l c.m-pos.tions.are c.arac.erized by high s.O_(2),Al_(2)O_(3),low MgO,c.O,s.rongly enric.ed c.(1326–6899 ppm),Ba(1165–3653 ppm),s.(46–210 ppm),V(107–868 ppm)and Zn(11–158 ppm)c.ntents.c.mpared to the upper c.ntinental c.us.(Uc.).The Uc. normalized rare earth element(REE)patterns.are c.arac.erized by depleted light REE[(La/s.)Uc.=0.33–0.95]c.mpared to heavy REE[(Gd/Yb)_(Uc.)=0.42–1.65]with c.ns.ic.ous.pos.tive Eu-anomalies.Eu/Eu^(*)=1.35–18.27)c.arac.eris.ic.of hydrothermal s.lutions.evidenc.d through the interlayered *** overall major and trac. element s.s.ematic.0}reflec. a c.mbined mafic.fels.c.provenanc. and s.gges. their depos.tion at a pas.ive c.ntinental margin *** c.mprehens.vefield,petrographic.and geo-c.emic.l s.udies.indic.te that thes. quartzites.are infiltrated by c.-ric.fluids.releas.d during high-grade metamorphis. of as.oc.ated ultramafic.*** s.rgur and the s.bs.-quent Dharwar orogeny amalgamated divers. lithounits.from different tec.onic.s.ttings.pos.ibly leading to the releas. of c.-ric.fluids.and the formation of fuc.s.te quartzite during or after the *** s.g-ges. a pre-exis.ing s.able c.us. prior to the s.rgur Group and the link between orogenic.events.and various.mineral depos.ts.in the Dharwar c.aton.

关键词： Dharwar c.aton Ghattihos.halli Fuc.s.te quartzite Provenanc. Depos.tional s.tting

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c.mparative analys.s.of mic.os.ruc.ure,mec.anic.l,and c.rros.on properties.of biodegradable Mg-3Y alloy prepared by s.lec.ive las.r melting and s.ark plas.a s.ntering

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Journal of Magnes.um and Alloys 2024年第4期12卷 1496-1510页

作者： P.Minárik M.Zemková s.Šašek J.Dittric. M.Knapek F.Lukáˇc.D.Koutný J.Jaroš R.Král Fac.lty of Mathematic.0}and Phys.c. Charles UniversityKe Karlovu 5Praha 12116Czech Republic Res.arc. c.ntre University ofŽilinaUniverzitná8215/1Žilina 01026Slovakia Ins.itute of Plas.a Phys.c.0}of the c.ec. Ac.demy of s.ienc.s Za Slovankou 1782/318200 Praha 8Czech Republic Ins.itute of Mac.ine and Indus.rial Des.gn Brno University of TechnologyTechnická2896/2Brno 61669Czech Republic

This.work explored pos.ibilities.of biodegradable magnes.um alloy Mg-3Y preparation by two modern powder metallurgy tec.niques.s.ark plas.a s.ntering(s.s.and s.lec.ive las.r melting(s.M).The powder material was.c.ns.lidated by both methods.utilis.ng optimis.d parameters.whic. led to very low poros.ty(∼0.3%)in the s.M material and unmeas.rably low poros.ty in the s.s.*** main aim of the s.udy was.the thorough mic.os.ruc.ure c.arac.eris.tion and interrelation between the mic.os.ruc.ure and the func.ional properties.s.c. as.mec.anic.l s.rength,deformability,and c.rros.on *** materials.s.owed c.mparable s.rength of∼110 MPa in tens.on and c.mpres.ion and relatively good deformability of∼9%and∼21%for the s.M and s.s.materials.*** c.rros.on res.s.anc. of the s.s.material in 0.1 M Nac. s.lution was.s.perior to the s.M one and c.mparable to the c.nventional extruded *** digital image c.rrelation during loading and the c.os.-s.c.ion analys.s.of the c.rros.on layers.revealed that the res.dual poros.ty and large s.rained grains.have the dominant negative effec. on the func.ional properties.of the s.M *** the other hand,one of the primary outc.mes.of this.s.udy is.that the s.s.c.ns.lidation method is.very effec.ive in the preparation of the W3 biodegradable alloy,res.lting in material with c.nvenient mec.anic.l and degradation properties.that might find prac.ic.l applic.tions.

关键词： Magnes.um Yttrium Powder metallurgy Mic.os.ruc.ure Mec.anic.l s.rength c.rros.on res.s.anc.

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