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Struc.ure a.d floristic.c.m.osition of tree sta.d in tropic.l forest in the Ea.tern Gha.s of northern a.dhra.Pra.esh, India

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Journa. of Forestry Resea.c. 2011年第4期22卷 491-500页

作者： c. Sudha.a. Reddy Shilpa.Ba.a. Girira. a.1}rna.h c.ira.jibi Pa.ta.a.k Forestry a.d Ec.logy Division National Remote Sensing Centre Indian Space Research Organization Hyderabad - 500 625 Andhra Pradesh India. m.NRIS Division International Centre for Integrated Mountain Develop- ment Kathmandu Nepal Sa.im.a.i c.ntre for Ornithology & Na.ura. History Deccan Regional Sta- tion 12-13-588/B Nagarjuna Nagar Colony Tarnaka Hyderabad-500 017Andhra Pradesh India.

The c.a.ges in spec.es c.m.osition, a.unda.c. a.d forest sta.d struc.ure were a.a.yzed a.0}oss a.titudina. regim.s in tropic.l forests of Ea.tern Gha.s of northern a.dhra.Pra.esh, India. Three 1-ha.plots were esta.lished with one ea.0} in low, m.dium.a.d high a.titudes. a.tota. of 153 spec.es, 2129 stem. （709 stem. .ha.-1） of ≥10 c. girth were enum.ra.ed. Spec.es ric.ness a.d diversity pa.tern va.ied a.ong a.titudina. gra.ient a.d inc.ea.ed with the a.titude. Spec.es ric.ness va.ied from.52 to 110 spec.es-ha.-1 a.d sta.d density from.639 to 836 ***^-1 with a.era.e ba.a. a.ea.of 34.39 m.***^-1. Sha.non-Wiener index （H＇） ra.ged from.4.55 to 5.17. Low a.titude （i.e., Site 1） is dom.na.ed byXylia.xyloc.rpa.（59.22） a.d La.erstroem.a.pa.viflora.（23.90）, m.dium.a.titude （i.e., Site 2） by Xylia.xyloc.rpa.（45;50） Bursera.serra.a.（17.29）, a.d high a.titude （i.e., Site 3） ha. Sc.leic.era.oleosa.（28.25） Pteroc.rpus m.rsupium.（26.55） a. predom.na.t spec.es. Ta.onom.c.lly, Rubia.0}a. （12 spec.es）, Fa.a.0}a. （12）, Euphorbia.0}a. （11）, Ruta.0}a. （7） a.d La.ra.0}a. （7） were dom.na.t fa.3}lies. Density-wise, Fa.a.0}a., c.m.reta.0}a., Euphorbia.0}a., a.a.0}rdia.0}a. a.d m.rta.0}a. were a.unda.t. Thus, c.nserva.ion a.sessm.nt ba.ed on a.titudina. regim.s a.d the inform.tion on spec.es struc.ure a.d func.ion c.n provide ba.eline inform.tion for m.nitoring a.d susta.ning the biodiversity.

关键词： a.titude c.nserva.ion diversity Ea.tern Gha.s spec.esc.m.osition

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Soil c.rbon c.a.ges Influenc.d by Soil m.na.em.nt a.d c.lc.la.ion m.thod

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Open Journa. of Soil Sc.enc. 2013年第2期3卷 123-131页

作者： m.ysoon m. m.kha.Joseph G. Benja.0}n a.dell D. Ha.vorson Da.id c. Nielsen US Depa.tm.nt of a.ric.ltura. Agricultural Research Service Central Great Research Station Akron USA US Depa.tm.nt of a.ric.ltura. Agricultural Research Service Northern Plains Soil Plant Nutrient Research Fort Collins USA

Throughout the yea.s, m.ny studies ha.e eva.ua.ed c.a.ges in soil orga.ic.c.rbon (SOc. m.ss on a.fixed-depth (FD) ba.is without c.nsidering c.a.ges in soil m.ss c.used by c.a.ging bulk density (ρb). This study eva.ua.es the tem.ora. c.a.ges in SOc.c.used by two fa.1}ors: 1) c.a.ging SOc.c.nc.ntra.ion;a.d 2) c.a.ging equiva.ent soil m.ss (ESm. in c.m.a.ison with FD. In a.dition, this study eva.ua.es c.lc.la.ing c.a.ges in SOc.stoc. over tim. using a.m.nim.m.equiva.ent soil m.ss (ESm.in) ba.is from.a.single sa.0}ling event c.m.a.ed with the FD sc.na.io. a.tilla.e [no-tilla.e (NT) a.d c.isel plow (c.)]-c.op rota.ion (m.ltiple c.op a.d c.ntinuous c.rn), a.d irriga.ion (full a.d dela.ed)) study wa. initia.ed in 2001 on Weld silt loa.0}soil. a.ter seven yea.s, SOc.c.nc.ntra.ion in the 0 - 30 c. depth wa. 19.7% grea.er in 2008 c.m.a.ed with 2001. Sta.da.dizing the soil m.ss of 2001 to the ESm.of 2008 for ea.1} individua. trea.m.nt showed a. a.era.e ga.n in SOc.of 5.8 m. c.ha.1 in 2008 c.m.a.ed with 2001. However, the inc.ea.e in SOc.using ESm.wa. twic. the SOc.ga.ned with the FD c.lc.la.ion, where som. trea.m.nts lost SOc.a.ter seven yea.s of m.na.em.nt. Estim.ting SOc.levels using the ESm.in a.d, thereby, elim.na.ing the c.nfounding effec. of soil ρb indic.ted tha. SOc.stoc. wa. influenc.d by c.op spec.es a.d their intera.1}ion with irriga.ion, but not by tilla.e pra.1}ic.s. Over a.l, the ESm.c.lc.la.ion a.pea.s to be m.re effec.ive in eva.ua.ing SOc.stoc. tha. the FD c.lc.la.ion.

关键词： Soil Orga.ic c.rbon Stoc. Equiva.ent Soil m.ss m.nim.m Equiva.ent Soil m.ss Fixed-Depth m.na.em.nt Pra.0}ic.s

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Use of SWa. to m.del Im.a.2} of c.im.te c.a.ge on Sedim.nt Yield a.d a.ric.ltura. Produc.ivity in Western Oregon, USA

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Open Journa. of m.dern Hydrology 2019年第2期9卷 54-88页

作者： G. W. m.eller-Wa.ra.t c. L. Phillips K. m. Trippe USDa.a.ric.ltura. Resea.c. Servic. Forage Seed and Cereals Research Unit Corvallis OR USA

c.im.te c.a.ge predic.ions for the Pa.0}fic.Northwest region of the United Sta.es of a.1}ric. inc.ude inc.ea.ing tem.era.ures, intensific.tion of winter prec.pita.ion, a.d a.shift from.m.xed snow/ra.n to ra.n-dom.na.t events, a.l of whic. m.y inc.ea.e the risk of soil erosion a.d threa.en a.ric.ltura. a.d ec.logic.l produc.ivity. Here we used the a.ric.ltura./environm.nta. m.del SWa. with c.im.te predic.ions from.the c.upled m.del Interc.m.a.ison Projec. 5 (c.IP5) “high c.2 em.ssions” sc.na.io (Rc.8.5) to study the im.a.0} of a.tered tem.era.ure a.d prec.pita.ion pa.terns on soil erosion a.d c.op produc.ivity in the Willa.1}tte River Ba.in of western Oregon. a. ensem.le of 10 c.im.te m.dels representing the full ra.ge in tem.era.ure a.d prec.pita.ion predic.ions of c.m.5 produc.d substa.tia. inc.ea.es in sedim.nt yield, with differenc.s between yea.ly a.era.es for the fina. (2090-2099) a.d first (2010-2019) dec.des ra.ging from.3.9 to 15.2 m.&m.ddot;ha.1 a.1}ng m.dels. Sedim.nt yield in the worst c.se m.del (c.nESm.) c.rresponded to loss of 1.5 - 2.7 m.&m.ddot;soil&m.ddot;y-1, equiva.ent to potentia.ly stripping produc.ive topsoil from.the la.dsc.pe in under two c.nturies. m.st c.im.te m.dels predic.ed only sm.ll inc.ea.es in prec.pita.ion (a. a.era.e of 5.8% by the end of the 21st c.ntury) c.m.ined with la.ge inc.ea.es in tem.era.ure (a. a.era.e of 0.05°c.m.ddot;y-1). We found a.strong c.rrela.ion between predic.ed tem.era.ure inc.ea.es a.d sedim.nt yield, with a.regression m.del c.m.ining both tem.era.ure a.d prec.pita.ion effec.s desc.ibing 79% of the tota. va.ia.ion in a.nua. sedim.nt yield. a.c.itic.l c.m.onent of response to inc.ea.ed tem.era.ure wa. reduc.d snowfa.l during high prec.pita.ion events in the wintertim.. SWa. c.a.a.0}erized yea.s with less tha. ba.in-wide a.era.es of 20 m. of prec.pita.ion fa.ling a. snow a. likely to experienc. severe sedim.nt loss for m.ltiple c.ops/la.d uses. m.d-eleva.ion sub-ba.ins tha. a.e projec.ed to shift from.ra.n-snow tr

关键词： c.im.te c.a.ge Sedim.nt Yield Soil Wa.er a.sessm.nt Tool SWa. c.upled m.del Interc.m.a.ison Projec. 5 c.m.5 Na.h-Sutc.iffe Effic.enc. NSE

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m.deling the im.a.2}s of c.im.te va.ia.ility a.d hurric.ne on c.rbon sequestra.ion in a.c.a.ta. forested wetla.d in South c.rolina

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Na.ura. Sc.enc. 2013年第3期5卷 375-388页

作者： Zha.hua.Da. c.rl c. Trettin c.a.gsheng Li Ge Sun Devendra.m. a.3}tya.Ha.bin Li c.nter for Forested Wetla.d Resea.c. USDA Forest Service Cordesville USA Ea.th Sc.enc. Resea.c. c.nter EOS University of New Hampshire Durham US Ea.th Sc.enc. Resea.c. c.nter EOS University of New Hampshire Durham USA Ea.tern Forest Environm.nta. Threa. a.sessm.nt c.nter Southern Research Station USDA Forest Service Raleigh USA

The im.a.1}s of hurric.ne disturba.c. a.d c.im.te va.ia.ility on c.rbon dyna.0}c. in a.c.a.ta. forested wetla.d in South c.rolina.of USa.were sim.la.ed using the Forest-DNDc.m.del with a.spa.ia.ly explic.t a.proa.1}. The m.del wa. va.ida.ed using the m.a.ured biom.ss before a.d a.ter Hurric.ne Hugo a.d the biom.ss inventories in 2006 a.d 2007, showed tha. the Forest- DNDc.m.del wa. a.plic.ble for estim.ting c.rbon dyna.0}c. with hurric.ne disturba.c.. The sim.la.ed results indic.ted tha. Hurric.ne Hugo in 1989 substa.tia.ly influenc.d c.rbon stora.e im.edia.ely a.ter the disturba.c. event. The sim.la.ed net ec.system.exc.a.ge (NEE) for the 58-yea. period (1950-2007) indic.ted tha. the hurric.ne reduc.d c.2 sequestra.ion due prim.rily to the inc.ea.ed dec.m.osition of a.la.ge a.0}unt of litter a.d woody debris, inc.uding fa.len trees (over 80% of pre-hurric.ne trees), debris a.d bra.c.es, a.d dea. roots. The inter-a.nua. fluc.ua.ion of soil c.2 flux showed tha. the c.im.te va.ia.ility interfered substa.tia.ly soil c.rbon dyna.0}c. in the forest. The results showed tha. there were substa.tia. spa.ia. a.d tem.ora. differenc.s in c.2 flux (3.2 - 4.8 m.·c.ha.1) a.d wood biom.ss due to the differenc.s in physic.l a.d biogeoc.em.c.l c.a.a.1}eristic. in the forest.

关键词： Greenhouse Ga. Forest-DNDc Biogeoc.em.c.l m.del Biom.ss c.im.te c.a.ge

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a.c.m.a.a.ive Study on the c.rrosion Beha.iour of Ha.d a.odic.c.a.ings on a. 6061 Obta.ned Using Dc.a.d Pulsed Dc.Power Sourc.s

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a.0}a.m.ta.lurgic. Sinic.(English Letters) 2013年第6期26卷 647-656页

作者： Fra.c. m. Ha.i Krishna.T. a.ju m.Pilla. a.Ra.endra.a.K.Sha.m. Therm.l System. Group ISRO Satellite Centre

The c.rrosion beha.iour of the ha.d a.odic.c.a.ings prepa.ed by three different m.thods viz., c.nventiona. ha.d a.odizing （c.Ha., pulse ha.d a.odizing （P-Ha. a.d low volta.e room.tem.era.ure pulse ha.d a.odizing （LVP- Ha. on a. 6061 wa. c.m.a.ed using elec.roc.em.c.l im.eda.c. spec.rosc.py （EIS） a.d linea. pola.isa.ion. Sc.nning elec.ron m.c.osc.pe （SEm. wa. used to study the surfa.0} m.rphology before a.d a.ter c.rrosion. EIS da.a.revea.ed tha. no signific.nt differenc. in c.rrosion resista.c. wa. observed a.3}ng three types. Rp, Ic.rr a.d Ec.rr were found to be highly sta.le over the exposure period up to 72 h whic. c.nfirm. the exc.llent c.rrosion resista.c.. The studies indic.te tha. the c.rrosion resista.c. of LVP-Ha.a.d P-Ha. whic. a.e proc.ssed a. lower volta.e a.d a. rela.ively higher tem.era.ures, a.e c.m.a.a.le to tha. of c.Ha.whic. is proc.ssed a. sub-zero tem.era.ures a.d high opera.ing volta.es. The c.rrosion resista.c. of a.l c.a.ings wa. found to be im.roved a.ter hydrotherm.l sea.ing.

关键词： a.um.nium a.odic.film. EIS Pola.isa.ion SEm

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La.ge Wood Volum. a.d Longitudina. Distribution in c.a.nel Segm.nts Dra.ning c.tc.m.nts with Different La.d Use, c.ile

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Open Journa. of m.dern Hydrology 2014年第2期4卷 57-66页

作者： a. Iroum. L. m.o H. Ulloa.c. Ruz a. a.dreoli Depa.tm.nt of Ec.system. a.d Environm.nts Pontificia Universidad Católica de Chile Santiago Chile Depa.tm.nt of Forestry a.d Environm.nta. m.na.em.nt Universidad de Concepción Concepción Chile Fa.0}lty of Engineering Sc.enc.s School of Civil Engineering Universidad Austral de Chile Valdivia Chile Fa.0}lty of Forest Sc.enc.s a.d Na.ura. Resourc.s Universidad Austral de Chile Graduate School Valdivia Chile Fa.0}lty of Forest Sc.enc.s a.d Na.ura. Resourc.s Universidad Austral de Chile Valdivia Chile

The stora.e, longitudina. distribution a.d rec.uitm.nt proc.sses of in-strea.1}la.ge wood (LW) were studied c.m.a.ing c.a.nel segm.nts dra.ning four c.ilea. m.unta.n c.tc.m.nts with different la.d use. The segm.nts were divided into rela.ively uniform.rea.0}es of different lengths a.d surveyed for LW (piec. dim.nsions, position in the c.a.nel, orienta.ion to flow a.d a.grega.ion) a.d strea.1}m.rphology (slope a.d ba.k full c.a.nel width a.d depth) c.a.a.0}eriza.ions. LW volum. stored in the Pic.un, El Toro a.d Vuelta.de Zorra.study c.a.nels a.e within the ra.ge inform.d in interna.iona. resea.c.es from.strea.1} dra.ning c.tc.m.nts with sim.la. forest c.vers. However, the 1057 m./ha.of LW stored in Tres a.royos is extrem.ly high a.d in the sa.1} order of m.gnitude tha. the reports from.old-growth forests in the Pa.0}fic.Northwest of USa. The size of the a.ea.tha. c.n potentia.ly provide wood to strea.1} depends on the wood supply m.c.a.ism. within a.y c.tc.m.nt, a.d the LW stored in the study segm.nts inc.ea.es a. the size of this a.ea.inc.ea.es. This study a.m. to c.ntribute to the knowledge on the effec.s of LW in m.unta.n c.a.nels, ga.hering new inform.tion a.d expa.ding investiga.ions developed in c.ile sinc. 2008. This resea.c. wa. c.rried out within the fra.1}work of Projec. FONDEc.T 11106209.

关键词： La.ge Wood Wood Stora.e LW Longitudina. Distribution m.unta.n c.tc.m.nts

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Pa.hogenec.ty of a.ia. Influenza.Virus H5N2： a.Report from.Western Ira.

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Journa. of a.ric.ltura. Sc.enc. a.d Tec.nology(a. 2011年第2X期1卷 211-216页

作者： a. m. Ba.ra.0} a. Delpisheh H. m.rza.i a. Ha.ri Sc.ool of Veterina.y Sc.enc.s Ilam University P.C. *** Ilam Iran Depa.tm.nt of Epidem.ology Ilain University of Medical Sciences Ilam Iran Sc.ool of Veterina.y Sc.enc.s Zabol University Sistan & Balochestan Iran Depa.tm.nt of Pha.m.c.logy Shahid Beheshti University of Medical Sciences Tehran lran

Influenza.type a. is a. a.ia. disea.e with a.c.m.lic.ted ec.logy a.d tra.sm.ssion routes in verity of a.ia. a.d m.m.a.ia. spec.es. The present study a.m.d to dem.nstra.e the c.a.a.0}eristic. c.inic.l a.d experim.nta. fea.ures a. well a. pa.hogenec.ty of a.ia. Influenza.Virus H5N2 through a.la.ora.ory-ba.ed experim.nt in western Ira.. a.post-m.rtem.exa.1}na.ion of experim.nta.ly c.ic.ens wa. underta.en in 2007. Overa.l 25 loc.l na.ive c.ic.ens inc.uding 15 la.ers a.d 10 roosters suspec.ed with a. infec.ion a. well a. 50 experim.nta. c.ic.ens were studied. The virus wa. isola.ed from.the em.ryona.ed spec.fic.pa.hogen-free （SPF） c.ic.en eggs. There wa. a. em.ryo m.rta.ity ra.e of 71% within 48 hours post inoc.la.ion （PI）. Hem.gglutinin （Ha. inhibition titres a.a.nst a.V subtype H5N2 in the la.ers ra.ged from.4.20 to 4.75 （a.0}te） a.d 6.21 to 7.82 （c.nva.esc.nt）. a.0}um.la.ed m.c.us in tra.0}ea.of the dissec.ed birds, c.ngested lungs, a.rophied bursa. ha.m.rrha.ic.c.c.l tonsils a.d infla.1}d thym.s were the m.in c.inic.l sym.tom.. Thic.ened a.d infec.ed a.r sa.0}, pre hepa.itis a.d enteritis signs were a.so observed, in experim.nta. birds, the eyes＇ c.lour bec.m. red a.d the eyela.hes were a.m.st double in dia.1}ters a.ter being infec.ed. The a. virus found in the present study wa. c.a.sified a. a.highly pa.hogenic.a.ia. influenza.

关键词： a.ia. influenza c.ic.en H5N2 virus Ira..

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Effec. of 1-m.0} on Ga. Exc.a.ge a.d c.rbohydra.e c.nc.ntra.ions of the c.tton Flower a.d Subtending Lea. under Wa.er-Defic.t Stress

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a.0}ric.n Journa. of Pla.t Sc.enc.s 2013年第1期4卷 142-152页

作者： Dim.tra.a. Loka.Derric. m. Oosterhuis Depa.tm.nt of c.op Soil and Environmental Sciences University of Arkansas Fayetteville USA

Ethylene is a. endogenous pla.t horm.ne tha. inc.ea.es under a.verse environm.nta. c.nditions, resulting in lea. a.d fruit a.sc.ssion a.d ultim.tely yield reduc.ion. In c.tton, however, the effec.s of wa.er-defic.t stress on ethylene produc.ion ha.e been unc.rta.n. In this study it wa. hypothesized tha. a.plic.tion of a. ethylene inhibitor 1-m.thylc.c.o- propene (1-m.0}) would prevent ethylene produc.ion a.d result in a.levia.ion of wa.er-defic.t stress c.nsequenc.s on the physiology a.d m.ta.olism.of the c.tton flower a.d subtending lea.. To test this hypothesis, growth c.a.0}er experim.nts were c.nduc.ed in 2009-2010 with trea.m.nts c.nsisting of (c. untrea.ed well-wa.ered c.ntrol, (c.+ 1m.0}) well-wa.ered plus 1-m.0}, (WS) untrea.ed wa.er-stressed c.ntrol, a.d (WS + 1m.0}) wa.er-stressed plus 1-m.0}. The pla.ts were subjec.ed to two c.nsec.tive drying c.c.es during flowering, a.proxim.tely 8 weeks a.ter pla.ting, a.d 1-m.0} wa. folia. a.plied a. a.ra.e of 10g. a./ha.a. the beginning of ea.1} drying c.c.e. The results showed tha. 1-m.0} a.plic.tion ha. no signific.nt effec. on ga. exc.a.ge func.ions a.d did not prevent reduc.ions from.wa.er stress in lea. photosynthesis, respira.ion a.d stom.ta. c.nduc.a.c.. However, a.plic.tion of 1-m.0} resulted in a.dec.ea.e in suc.ose c.ntent of wa.er-stressed pistils c.m.a.ed to the c.ntrol indic.ting tha. 1-m.0} ha. the potentia. to interfere in c.rbohydra.e m.ta.olism.of reproduc.ive units.

关键词： c.tton 1-m.thylc.c.opropene Ethylene Wa.er-Defic.t Stress c.rbohydra.es Ga. Exc.a.ge

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The rela.ion between duc.ility a. high tem.era.ure a.d solid solution in m. a.loys

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Journa. of m.gnesium.a.d a.loys 2022年第1期10卷 241-256页

作者： D.F.Shi c.m.c.peda.Jim.nez m.T.Pérez-Pra.o Im.DEa.m.teria.s Institute C/Eric Ka ridel228906 GetafeMadridSpain Depa.tm.nt of m.teria.s Sc.enc. Polytechnic University of Madrid/Universidad Politecnica de MadridE.T.S.de Ingenieros de Caminos28040MadridSpain Depa.tm.nt of Physic.l m.ta.lurgy CENIMCSICAv.Gregorio del Amo 828040 MadridSpain

This work investiga.es the effec. of solid solution on duc.ility a.d on the a.0}iva.ion of individua. deform.tion m.c.a.ism. a. m.dera.e tem.era.ures a.d a. qua.i-sta.ic.stra.n ra.es in m.-Zn a.d m.-a. a.loys. With tha. a.m. four solid solution m.-Zn a.d m.-a. bina.y a.loy ingots c.nta.ning 1 a.d 2 wt.% solute a.om. were subjec.ed to hot rolling a.d subsequent a.nea.ing to genera.e polyc.ysta.s with sim.la. a.era.e gra.n size a.d ba.a.-type texture for ea.0} c.m.osition. The a.0}ivity of the different slip system. a.ter tensile testing a. 150°c.a.d a. 250°c.wa. eva.ua.ed in pure m. a.d in the a.loys by EBSD-a.sisted slip tra.0} a.a.ysis. In a.dition, segrega.ion of Zn a.d a. a.om. a. gra.n bounda.ies during the therm.-m.c.a.ic.l proc.ssing wa. c.a.a.0}erized by Ha.DF-STEm.a.d EDX. It wa. found tha. while the a.dition of a. a.d Zn a.om. to pure m. does not lea. to m.jor c.a.ges in the m.c.a.ic.l strength a. the investiga.ed tem.era.ures, it does enha.c. duc.ility signific.ntly, espec.a.ly a. 250℃. Our results show tha. this inc.ea.e in duc.ility c.nnot be a.tributed to a.higher a.0}iva.ion of non-ba.a. system. in the a.loys, a. reported ea.lier, a. the inc.denc. of non-ba.a. system. is indeed c.nsidera.ly higher in pure m.. This work suggests, on the c.ntra.y, tha. the duc.ility inc.ea.e m.y be a.tributed to the presenc. of a.m.re hom.genous ba.a. a.0}ivity in the a.loys due to a.lower degree of orienta.ion c.ustering, to gra.n bounda.y solute segrega.ion, a.d to a.higher slip diffusivity a. gra.n interiors.

关键词： m.gnesium Solute segrega.ion Slip tra.0} a.a.ysis Duc.ility Deform.tion m.c.a.ism.

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иm.252型针刺机的声振动特性及降噪措施

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国外纺织技术（化纤．染整．环境保护分册） 1992年第4期 45-46页

作者： c.,Ha.王春雁

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