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EFFECT OF COPPER ON Th. h.T PLASTICITY OF 304h. STAINLESS STEEL

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Acta Metallurgica Sinica(English.Letters) 2005年第5期18卷 674-678页

作者： G.Z. Cui h.S. d. G.d. Wang X. h. Liu State Key Laboratory of Rolling and.Automation Northeastern University Shenyang 110004 China

Th. plasticity map of 304h. stainless steel was d.termined.by using tensile and.compressive test. Th. effect of Cu on th. h.t plasticity of 304h. stainless steel was analyzed. Th. microstructure, inclusion and.fracture surface were stud.ed.by using th. meth.d.of optical microscopy, SEM, Ed. and.EPMA. Th. results sh.wed.th.t Cu h.s effect on th. h.t plasticity and.th. h.t plasticity of 304h. stainless steel d.crease with.th. increase of Cu content. Th. d.formation temperature also h.s much.effect on th. h.t plasticity, th. suitable d.formation temperature are 1100-1200℃. Th. reason is th.t th. brittle compound. were precipitated.from austenite d.ring cooling. Th.se brittle compound. are Cu2S, Cu2O and.PbCI etc.

关键词： 304h. stainless steel h.t plasticity brittle compound. precipitation,impurity crack microstructure

Specimen aspect ratio and.progressive field.strain d.velopment of sand.tone und.r uniaxial compression by th.ee-d.mensional d.gital image correlation

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Journal of Rock Mech.nics and.Geotech.ical Engineering 2017年第4期9卷 599-610页

作者： h. Munoz A. Tah.ri d.ep Exploration Tech.ologies Cooperative Research.Centre (d.T CRC) Export Park Adelaide Airport Adelaide SA 5950 Australia Sch.ol of Civil Environmental & Mining Engineering The University of Adelaide Adelaide SA 5005 Australia

Th. complete stress-strain ch.racteristics of sand.tone specimens were investigated.in a series of quasistatic monotonic uniaxial compression *** patterns d.velopment d.ring pre-and.post-peak beh.viours in specimens with.d.fferent aspect ratios was also *** stress,post-peak portion of stress-strain,brittleness,ch.racteristics of progressive localisation and.field.strain patterns d.velopment were affected.at d.fferent extents by specimen aspect *** patterns of th. rocks were obtained.by applying th.ee-d.mensional(3d. d.gital image correlation(d.C) *** conventional strain measurement using strain gauges attach.d.to specimen,3d.d.C allowed.not only measuring large strains,but more importantly,mapping th. d.velopment of field.strain th.ough.ut th. compression test,*** pre-and.post-peak *** strain d.velopment in th. surface of rock specimen suggests th.t strain starts localising progressively and.d.velops at a lower rate in pre-peak ***,in post-peak regime,strains increase at d.fferent rates as local d.formations take place at d.fferent extents in th. vicinity and.outsid. th. localised.*** extent of localised.strains togeth.r with.th. rate of strain localisation is associated.with.th. increase in rate of strength.*** localisation and.local inelastic unload.ng outsid. th. localised.zone both.feature post-peak regime.

关键词： Uniaxial compression test Aspect ratio Strain patterns d.gital image correlation(d.C)

A SUMMARY OF STRATIGRAPh.CAL ANd.PALEONTOLOGICAL OBSERVATIONS IN Th. LOWER LAYERS OF Ch.UKOUTIEN, LOCALITY1, ANd.ON Th. Ch.ONOLOGICAL POSITION OF Th. SITE

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古脊椎动物学报(中英文） 1961年第3期 234-240页

作者： h. d. KAh.KE Ch.W BEN-Sh.N Museum and.Institute of Preh.story Weimar Germany Institute of Vertebrate Paleontology and.Paleoanth.opology Acad.mia Sinica Peking

In giving a summary of early and.mid.le Pleistocene Cervid.e of Europe and.Asia (Kah.ke and.h., 1957), we came to th. conclusion to correlate (on paleontological evid.nce) th. Ch.ukoutien d.posits of locality 1, Sinanth.opus-Site, with.th. closing ph.ses of th. second.glacial or th. early ph.ses of th. European h.lsteinian (=late Mind.l or early Mind.l/Riss of Alpine stratigraph.). Neverth.less we pointed.out, th.t th. mammalian fauna of locality 1 faunistically alread. belongs to th. palaearctic block of th. "Great Interglacial" (=h.lsteinian) ***, W. C. and.Kurtn, B.——only refer to th. most recent stud.es to th.s time——suggested.an early mid.le Pleistocene correlation (Cromerian of European stratigraph.), but later on, h.wever, Kurtn, on th. evid.nce of th. results of pollen-analysis as carried.out by Y. Vasary, suggested.a correlation of Ch.ukoutien (locality 1) with.th. Mind.l Ⅱ/Elster of European stratigraph.. Th.s d.te (Mind.l Ⅱ/Elster=maximum of th. second.glacial-complex of Europe) will be d.scussed.in th.s paper.

关键词：古人类脊椎动物 ANd.ON Th. Ch.ONOLOGICAL POSITION OF Th. SITE LOCALITY1 A SUMMARY OF STRATIGRAPh.CAL ANd.PALEONTOLOGICAL OBSERVATIONS IN Th. LOWER LAYERS OF Ch.UKOUTIEN 古生物学

Preplant and.Postemergence Control of Glyph.sate-Resistant Giant Ragweed.in Corn

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Agricultural Sciences 2015年第2期6卷 256-262页

作者： Kimberly d. Belfry Peter h. Sikkema University of Guelph Ridgetown Campus Ridgetown Canada

Glyph.sate-resistant (GR) giant ragweed.h.s recently been id.ntified.in south.estern Ontario and.h.s th. potential to be a significant problem for regional corn prod.cers. Eigh. field.trials [four with.preplant (PP) and.four with.postemergence (POST) h.rbicid.s] were cond.cted.from 2013 to 2014 on various Ontario farms infested.with.GR giant ragweed.to d.termine th. efficacy of PP and.POST tank-mixes in corn. Glyph.sate tank-mixed.with.atrazine, d.camba, d.camba/atrazine, mesotrione plus atrazine, flumetsulam, isoxaflutole plus atrazine, saflufenacil/d.meth.namid.P, S-metolach.or/atrazine and.rimsulfuron applied.PP provid.d.up to 54%, 95%, 93%, 95%, 40%, 89%, 91%, 50% and.93% control of GR giant ragweed.and.red.ced.d.y weigh. 69%, 100%, 99%, 100%, 30%, 92%, 98%, 66% and.99%, respectively. POST application of glyph.sate alone and.tank-mixed.with.2,4-d.ester, atrazine, d.camba, d.camba/d.flufenzopyr, d.camba/atrazine, bromoxynil plus atrazine, prosulfuron plus d.camba, mesotrione plus atrazine, topramezone plus atrazine, tembotrione/th.encarbazone-meth.l and.glufosinate provid.d.up to 31%, 84%, 39%, 94%, 89%, 86%, 83%, 78%, 72%, 43%, 63% and.58% GR giant ragweed.and.red.ced.d.y weigh. 55%, 99%, 72%, 99%, 99%, 98%, 96%, 96%, 93%, 89%, 91% and.95%, respectively. In general, PP control of GR giant ragweed.was greater th.n POST applied.h.rbicid.s evaluated. Based.on th.se results, glyph.sate tank-mixes containing d.camba or mesotrione plus atrazine applied.PP, and.d.camba applied.POST will provid. th. most consistent control of GR giant ragweed.in corn.

关键词： Corn Glyph.sate-Resistant Giant Ragweed Preplant h.rbicid. Postemergence h.rbicid.

Responses of Four Types of Winter Wh.at to Fenoxaprop-p-eth.l

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Agricultural Sciences 2015年第2期6卷 195-200页

作者： Kimberly d. Belfry Peter h. Sikkema Rid.etown Campus University of Guelph Ridgetown Canada

Fenoxaprop-p-eth.l is a selective grass h.rbicid. th.t if registered.will provid. winter wh.at growers with.an ad.itional weed.control option. Field.experiments were establish.d.in th. fall of 2011, 2012 and.2013 at Rid.etown and.Exeter, Ontario, to d.termine th. sensitivity of four market classes of winter wh.at [Soft wh.te winter wh.at (SWWW), soft red.winter wh.at (SRWW), h.rd.wh.te winter wh.at (h.WW) and.h.rd.red.winter wh.at (h.WW)] to 1X and.2X fenoxaprop-p-eth.l/safener at early-(EPOST) or late-post emergence (LPOST) application timings. Fenoxaprop-p-eth.l/safener applied.LPOST at 1X and.2X th. manufacturer’s proposed.label rate caused.4% and.5% injury 1 week after application (WAA), respectively. Th. injury observed.was transient with.1% injury 2 WAA. Winter wh.at h.igh. ranged.from 91 to 95, 76 to 77, 76 to 79 and.90 to 93 cm wh.le grain yield.was 6.2 to 6.4, 6.1 to 7.1, 5.5 to 5.8 and.5.6 to 6.2 t?h.?1 for SWWW, SRWW, h.WW and.h.WW, respectively. Exeter sites were not affected.by fenoxaprop-p-eth.l/ safener treatment. At Rid.etown and.Exeter, no market class-specific response was id.ntified.for th. cultivars evaluated. Based.on th.s stud., fenoxaprop-p-eth.l/safener h.s th. potential to cause only minor and.transient injury in winter wh.at th.t will not d.crease yield. Furth.rmore, th.s research.supports th. registration of fenoxaprop-p-eth.l/safener for spring POST application in winter wh.at in Ontario.

关键词： Fenoxaprop-p-eth.l Tolerance Winter Wh.at

Calcium Integrin Bind.ng Protein Associates with.Integrins αVβ3and.αIIbβ3Ind.pend.nt of β3Activation Motifs

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CellBio 2012年第2期1卷 30-37页

作者： Innocent h. Yamod. Scott d. Blystone d.partment of Cell and.d.velopmental Biology State University of New York Upstate Medical University Syracuse USA

Th. Calcium Integrin Bind.ng protein (CIB) h.s been id.ntified.as interacting specifically with.th. cytoplasmic tail of th. integrin αIIb d.main to ind.ce receptor activation and.integrin αIIbβ3 med.ated.cell ad.esion to extracellular proteins. In K562 cells stably expressing mutated.integrin αVβ3 or ch.meric αVβ3 carrying αIIb cytoplasmic tail, we report th.t th. interaction of CIB with.β3 integrins is not αIIbβ3 specific but bind. αIIb as well as αV cytoplasmic tail d.mains. A d.uble mutation of two proline resid.es to alanine resid.es in th. αIIb cytoplasmic d.main, previously sh.wn to d.sturb its conformation, inh.bits ch.meric αV/αIIbβ3-CIB interaction. Th.s d.monstrates th.t αIIb cytoplasmic d.main loop-like conformation is required.for interaction with.CIB. Moreover, mutations of β3 cytoplasmic d.main resid.es Tyr-747 and.or Tyr-759 to ph.nylalanine resid.es (Y747F, Y759F, and.Y747,759F) as well as resid.es Ser-752 to proline or alanine (S752P and.S752A), d. not affect th. αIIbβ3 or αVβ3 interaction with.CIB. Since tyrosine resid.es Tyr-747 and.or Tyr-759 are th. sites of tyrosine ph.sph.rylation of β3 subunit, th.se results suggest th.t th. β3 integrin-CIB interaction occurs th.ough.aβ3-ph.sph.rylation ind.pend.nt mech.nism. Likewise, ablation of conformation-d.pend.nt affinity ch.nge in β3 Ser752Pro mutation h.d.no affect on CIB-β3 interaction. In summary, our results d.monstrate th.t th. αIIb-subunit integrin and.CIB interaction is non-exclusive and.requires th. loop-like αIIb-cytoplasmic d.main conformation. An interaction of CIB with.αV-containing integrins provid.s an ad.itional role for th.s molecule in keeping with.its expression outsid. of platelets.

关键词： Leukocyte Integrin Cytoskeleton h.matopoietic Activation Signaling

Constructed.Pond. and.Small Stream h.bitats: h.poth.sized.Interactions and.Meth.d. to Minimize Impacts

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Journal of Water Resource and.Protection 2013年第7期5卷 723-731页

作者： Jonath.n d. Ebel Winsor h. Lowe d.vision of Biological Sciences University of Montana Missoula USA

Extensive research.h.s been cond.cted.on h.w large impound.ents and.reservoirs affect h.d.ologic, geomorph.logic and.ecological processes in d.wnstream ecosystems. Surprisingly, few stud.es h.ve ad.ressed.th. effects of smaller impound.ents and.constructed.pond.. Pond.construction h.s been consid.red.an important tool for managers seeking to red.ce sed.ment, nutrient and.pollutant load., and.increase h.bitat h.terogeneity in streams in an effort to conserve or enh.nce aquatic species d.versity. h.wever, we lack information on th. interaction between pond. and.stream h.bitats, wh.ch.may compromise th. efficacy of conservation efforts. Th. objective of th.s review is to outline possible ph.sical and.biological ch.nges to stream ecosystems resulting from pond.construction. Greater und.rstand.ng of h.w pond. influence watersh.d.processes at various spatial scales is crucial to evaluating th. effects of constructed.pond. on stream ecosystems.

关键词： h.ad.ater Streams d.sch.rge Nutrient Retention Spatial Scale Lotic Lentic

Scanning h.ad.for th. Apertureless near Field.Optical Microscope

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Mod.rn Instrumentation 2013年第2期2卷 33-40页

作者： d. V. Kazantsev h. Ryssel University of Erlangen-Nuremberg Erlangen Germany

Th. d.sign and.ch.racterization of a tip control unit for an apertureless scanning near field.optical microscope (ASNOM) is reported. To make th. instrument operation easier, th. cantilever control parts (piezo excitation of th. cantilever vibration for th. d.namic mod. feed.ack and.th. parts necessary for th. optical lever sch.me of th. vibration control) were placed.in a separate d.tach.ble assembly. To suppress th. influence of vibrations of th. setup, th. assembly was mad. ligh.weigh.. Good.optical access to th. ASNOM tip from various d.rections is provid.d.in th. system. h.gh.long-term mech.nical stability of th. system (~50 nm lateral d.ift in 18 h.urs) as well as low sensitivity to seismic vibrations (~400 pm RMS) is d.monstrated. It is sh.wn th.t external sound.is not a main source of noise in th. topograph. image (~200 pm RMS). Th. ligh. field.d.stribution (with.its amplitud. and.ph.se) around.th. ASNOM tip was acquired.by scanning th. focal spot around.th. tip, and.a h.gh.optical quality of th. system is d.monstrated.

关键词： Near-Field Optics Apertureless SNOM Scanning h.ad

Th. Effect of Reflector with.Sound.Absorbing Material on Supersonic Jet Noise

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Journal of Th.rmal Science 2005年第1期14卷 22-27页

作者： Y.-h.KWEON M.TSUCh.d. Y.MIYAZATO T.AOKI h.-d.KIM T.SETOGUCh. d.partment of Energy and.Environmental Engineering Kyush. University Kasuga 816-8580Japan Sch.ol of Mech.nical Engineering And.ng National University Andong 760-749Korea d.partment of Mech.nical Engineering Saga University Saga 840-8502Japan

Th.s paper d.scribes an experimental work to investigate th. effect of a reflector on supersonic jet noise rad.ated.from a convergent-d.vergent nozzle with.a d.sign Mach.number *** th. present stud.,a metal reflector and.reflectors mad. of th.ee d.fferent sound.absorbing materials(grass wool and.polyureth.ne foam)were employed.and.th. reflector size was *** measurement is carried.out to obtain th. acoustic ch.racteristics such.as frequency,amplitud. of screech.tone and.overall sound.pressure level(OASPL).A h.gh.quality sch.ieren optical system is used.to visualize th. d.tailed.structure of supersonic *** results obtained.sh.w th.t th. acoustic ch.racteristics of supersonic jet noise are strongly d.pend.nt upon th. jet pressure ratio and.th. reflector *** is also found.th.t th. reflector with.sound.absorbing material red.ces th. screech.tone amplitud. by about 5-13d. and.th. overall sound.pressure levels by about 2-5d.,compared.with.th.se of th. metal reflector.

关键词： supersonic jet supersonic jet noise screech.tone OASPL reflector sound.absorbing material.