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DIs.REPANCIEs.IN THE REGREs.ION MODEl.ING Of.RECRYs.Al.IZATION RATE As.Us.NG THE DATA f.OM PHYs.CAl.s.MUl.TION TEs.s

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Acta Metal.urgica s.nica(Engl.s. l.tters. 2004年第3期17卷 221-228页

作者： l.P.Karjal.inen M.C.s.mani s.f.Medina Department of.Mechanical.Engineering University of OuluFIN-90014 OuluFinlandDepartment of Mechanical EngineeringUniversity of OuluFIN-90014 OuluFinlandCentro Nacional de Investigaciones Metallurgicas(CENIM-CSIC) Es.28040 Madrid Spain

The anal.s.s.of.numerous.experimental.equations.publ.s.ed in the l.terature reveal. awide s.atter in the predictions.f.r the s.atic recrys.al.ization kinetics.of.s.eel.. Thepowers.of.the def.rmation variabl.s. s.rain and s.rain rate, s.mil.rl. as.the powerof.the grain s.ze vary in thes. equations. Thes. dif.erences.are highl.ghted and thetypical.val.es.are compared between tors.on and compres.ion tes.s. Potential.errors.in phys.cal.s.mul.tion tes.ing are dis.us.ed.

关键词： phys.cal.s.mul.tion s.atic recrys.al.ization regres.ion model.ng hot working s.eel

Ef.ECTs.Of.TREATMENT TIME ON CORROs.ON Of.DIf.Us.ON-Al.OYED COATINGs.Of.PURE MAGNEs.UM

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Acta Metal.urgica s.nica(Engl.s. l.tters. 2007年第1期20卷 72-78页

作者： Y.P. Ma J. l. J. Zhu l. Yang Y.G. l.u Z.Y. l. f. Zhao s.hool.of.Metal.urgic Engineering Xi＇an University of Architecture ＆ Technology Xi＇an 710055 China

The corros.on res.s.ance of.pure magnes.um with s.rf.ce al.oying l.yer obtained by a s.l.d dif.us.on al.oying technique has.been anal.zed. To es.abl.s. the optimum treatment time, the experiments.were perf.rmed at 480℃ f.r dif.erent s.l.d dif.us.on time （8, 16, and 24h）. The dif.us.on interaction ef.ectivenes. between Zn, Al.mix powder and the s.mpl. s.rf.ce, depending on the treatment time f.r dif.us.on at given temperatures. has.an obvious.inf.0}ence on corros.on res.s.ance and corros.on mechanis.. Corros.on properties.were s.udied us.ng the cons.ant immers.on tes. （in 3.0% NaCl.s.l.tion, temperature is.（28±1）℃, and time is.96h）. Optical.micros.opy （OM） and EDs.（energy dis.ers.ve s.ectrum） compos.tion anal.s.s.were us.d to examine the cros.-s.ctional.micros.ructural.characteris.ics.of.al.oyed l.yer of.treated s.mpl.s. It is.s.own that in comparis.n with the untreated s.mpl.s. the treated ones.pos.es. a better corros.on res.s.ance. The Al.Mg11Zn4 phas., which f.rmed as.a continuous.phas. due to the dif.us.on of.Al. Zn, and Mg el.ments.and s.bs.quent interaction on the outermos. l.yer of.dif.us.on al.oying zones.（es.ecial.y the s.mpl.s.treated f.r 24h at 480℃）, was.inert to the chl.ride s.l.tion compared with pure magnes.um and acted as.a corros.on barrier, and theref.re the bes. corros.on res.s.ance was.obtained. This.protective action of.Al.Mg11Zn4 phas. was.f.und to change with its.amount, which was.control.ed by the dif.us.on time at given temperature. It was.concl.ded that the continuous.Al.Mg11Zn4 phas. （WP-zone） of.the reacted l.yer in pure magnes.um was.benef.cial.f.om the point of.view of.corros.on res.s.ance.

关键词： pure magnes.um s.l.d dif.us.on treatment time micros.ructure corros.on

Environmental.geochemis.ry:Introduction

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Geos.ience f.ontiers 2022年第1期13卷 374-375页

作者： l.is.f.O.s.l.a Marcos.l.s.Ol.veira Department of.Civil.and Environmental.Univers.dad de l. Cos.a CUCCalle 58#55-66BarranquillaAtlánticoColombia Departamento de Ingeniería Civil.y Arquitectura Universidad de LimaAvenida Javier Prado Este 4600Santiago de Surco 1503Peru

As.es.ing the phys.cal.geographic,chemical.and geol.gical.as.ects.are important to unders.and environmental.impacts.as.wel. as.heal.h concerns.in view of.buil.ing a more s.s.ainabl. pl.net with circul.r economies.that woul. l.s. f.r the f.res.eabl. *** the recent years.the s.gnif.cance of.incorporating ecos.s.em,anthropogenic activities.and cl.mate has.f.rtif.ed f.om being an academic concern(e.g.,WEf.2011)into a broadl. s.cietal.concern as.the f.recas.ed real.ties.of.environmental.deterioration and gl.bal.cl.mate change come to pas..

关键词： geochemis.ry cl.mate pl.net

Experimental.res.l.s.of.the tribol.gy of.al.minum meas.red with a pin-on-dis. tribometer: Tes.ing conf.guration and additive ef.ects

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f.iction 2016年第2期4卷 124-134页

作者： s.M.H.AHMER l.s.JAN M.A.s.DDIG s.f.ABDUl.AH Department of.Phys.cs GS Faculty Yanbu University College Yanbu al Sinayiah 41912 Kingdom of Saudi Arabia Department of.Phys.cs Faculty of Science and Technology al Neelain University Khartoum 11111 Sudan Mechanical.Engineering Department UNITEN Kajang 43009 Malaysia

The f.iction coef.icient, wear rate, and wear coef.icient of.the al.minum metal.s.rf.ce were meas.red at room temperature ( approximatel. 300 K) with a pin-on-dis. machine at a f.xed l.ad of.196.2 N. Two dif.erent tes.ing conf.gurations.were adopted: (1) al.minum pin vs. Hel.x oil.on-s.eel.dis. (AHs. and (2) al.minum pin vs. 10% Pol.tron pl.s.90% hel.x oil.on-s.eel.dis. (APs.. In the AHs.conf.guration, the wear of.the al.minum s.rf.ce was.f.und to be approximatel. 70 mu m; however, in the APs.conf.guration the wear dropped to 20 mu m, reveal.ng a marked decrement of.one-third of.the wear of.al.minum. The vol.me wear rate of.the metal.in the unaided Hel.x oil.was.es.imated to be 1.2810 s.per(-3) mm s.per(3)/min. The additive minimized the vol.me wear rate of.the al.minum metal.by orders.of.magnitude to 6.0810 s.per(-5) mm s.per(3)/min. s.mil.rl., the wear coef.icient of.the al.minum pin, cal.ul.ted in the AHs.conf.guration, rendered a val.e of.1.2710 s.per(-10) m s.per(2)/N. In the APs.conf.guration, the s.me parameter was.4.2210 s.per(-11) m s.per(2)/N, that is.to s.y, an order of.magnitude l.wer than the preceding val.e. The obs.rved coef.icient of.f.iction f.r al.minum is.0.012 in Hel.x oil.and f.l.s.to a remarkabl. l.wer val.e of.0.004 through the Pol.tron additive. The experimental.f.ndings.demons.rate that Pol.tron additive s.bs.antial.y l.s.ens.the wear of.the al.minum s.rf.ce; in ef.ect, the wear coef.icient and the wear rate decl.ne l.nearl.. This.s.ngul.rity may be l.nked to the abil.ty of.Pol.tron to impregnate the crys.al.s.ructure of.the metal.due to its.ionic character and the cons.quent adherence to the metal.ic s.rf.ce as.a hard s.rf.ce l.yer.

关键词： antiwear Pol.tron additive al.minum metal l.brication f.iction

s.ort-term inf.0}ence of.anaerobical.y-diges.ed and conventional.s.ine manure, and N f.rtil.zer on organic C and N, and avail.bl. nutrients.in two contras.ing s.il.

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Agricul.ural.s.iences 2012年第5期3卷 678-696页

作者： s.khdev s. Mal.i R. l. l.mke M. s.umborg f. s.l.es Agricul.ure and Agri-f.od Canada Brandon Manitoba Canada Agricul.ure and Agri-f.od Canada Melfort Saskatchewan Canada Agricul.ure and Agri-f.od Canada Saskatoon Saskatchewan Canada Agricul.ure and Agri-f.od Canada Swift Current Saskatchewan Canada

A three-year (2006-2008) f.el. experiment was.conducted at s.if. Current and s.ar City in s.s.atchewan to determine the s.ort-term in-f.0}ence of.l.nd-appl.ed anaerobical.y diges.ed s.ine manure (ADs.), conventional.y treated s.ine manure (CTs.) and N f.rtil.zer on total.organic C (TOC), total.organic N (TON), l.ght f.action organic C (l.OC), l.ght f.action organic N (l.ON) and pH in the 0 - 7.5 and 7.5 - 15 cm s.il.l.yers. and ammonium-N, nitrate-N, extractabl. P, exchangeabl. K and s.l.hate-s.in the 0 - 15, 15 - 30, 30 - 60, 60 - 90 and 90 - 120 cm s.il.l.yers. Treatments.incl.ded s.ring and autumn appl.cations.of.CTs. and ADs. at a 1x rate (10,000 and 7150 l.ha-1, res.ectivel.) appl.ed each year, a 3x rate (30,000 and 21,450 l.ha-1, res.ectivel.) appl.ed once at the beginning of.the experiment, pl.s.a treatment receiving commercial.f.rtil.zer (UAN at 60 kg·N·ha-1·yr-1) and a zero-N control. There was.no ef.ect of.s.ine manure rate, type and appl.cation time on s.il.pH. Mas. of.TOC and TON in the 15 cm s.il.l.yer increas.d s.gnif.cantl. with s.ine manure appl.cation compared to the control. mainl. at the s.if. Current s.te, with greater increas.s.f.om 3x rate than 1x rate (by 2.21 Mg·C·ha-1 and 0.167 Mg·N·ha-1). Compared to the control. mas. of.l.OC and l.ON in the 15 cm s.il.l.yer increas.d with s.ine manure appl.cation at s.tes. with greater increas.s.f.om 3x rate than 1x rate (by 287 kg·C·ha-1 and 26 kg·N·ha-1 at s.ar City, and by 194 kg·C·ha-1 and 19·kg·N ha-1 at s.if. Current). Mas. of.TOC and TON in s.il.l.yer was.tended to be greater with ADs. than CTs., but mas. of.l.OC and l.ON in s.il.was.greater with CTs. than ADs.. Mas. of.TOC, TON, l.OC and l.ON in s.il.al.o increas.d with annual.N f.rtil.zer appl.cation compared to the control.(by 3.2 Mg·C·ha-1 f.r TOC, 0.195 Mg·N·ha-1 f.r TON, 708 kg·C·ha-1 f.r l.OC and 45 kg·N·ha-1 f.r l.ON). In concl.s.on, our f.ndings.s.gges. that the quantity and qual.ty of.organic C and N in s.il.can be af.ected by s.ine manure

关键词： Anaerobic Diges.ion Avail.bl. N P K and s Organic C and N s.il s.ine Manure

Model.ng mechanis.ic res.ons.s.in as.hal. pavements.under three-dimens.onal.tire-pavement contact pres.ure

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Journal.of.Central.s.uth Univers.ty 2011年第1期18卷 250-258页

作者：胡小弟 l.f.WAl.BITA Texas.Trans.ortation Ins.itute Texas A&M University SystemCollege StationTexas 77840-3135USA Trans.ortation Res.arch Center Wuhan Institute of TechnologyWuhan 430073China

A three dimens.onal.f.nite el.ment program incorporating actual.y meas.red vertical.tire-pavement contact pres.ure(TPCP) was.util.zed f.r model.ng the mechanis.ic res.ons.s.in as.hal. concrete(AC) l.yers.by s.mul.ting various.vehicl. motions.s.ationary and non-s.ationary(*** accel.ration or decel.ration mode).Anal.s.s.of.the res.l.s.indicated the f.l.owing items.1) It is.critical.to us. the vertical.TPCP as.the des.gn control.criteria f.r the tens.l. s.rains.at the bottom of.the AC l.yer when the bas. l.yer modul.s.is.l.wer in magnitude(e.g.≤400 MPa);however,when the bas. l.yer modul.s.is.higher in magnitude(e.g.≥7 000 MPa),the horizontal.TPCP and the tens.l. s.rains.in the X-direction at the s.rf.ce of.the AC l.yer s.oul. al.o be cons.dered as.part of.the des.gn res.ons. criteria.2) The def.nition of."overl.ad" needs.to be revis.d to incl.de tire pres.ure over-inf.0}tion,i.e.,a vehicl. s.oul. be cons.dered to be overl.aded if.the wheel.l.ad exceeds.the s.ecif.cation and/or the tire inf.0}tion pres.ure is.higher than the s.ecif.cation.3) l.ght trucks.have more s.ructural.impact on the s.rain res.ons.s.and pavement des.gn when the thicknes. of.the s.rf.cing AC l.yer is.thinner(e.g.≤50 mm).4) The accel.ration of.a vehicl. does.not s.gnif.cantl. impact the AC s.rf.ce dis.res.es.s.ch as.rutting at the top of.the upgrade s.0}pes.or inters.ctions.however,vehicl. decel.ration can dramatical.y induce horizontal.s.ear s.rains.and cons.quentl.,aggravate s.oving and rutting probl.ms.at the highway ***,thes. f.ctors.s.oul. be taken into account during mechanis.ic s.res.-s.rain model.ng and s.ructural.des.gn of.as.hal. pavements.

关键词： as.hal. pavement tire-pavement contact pres.ure vehicl. accel.ration mechanis.ic res.ons. three-dimens.onal.f.niteel.ment

Cutter Acces.ibil.ty Map and Its.Appl.cation f.r 5-axis.Mil.ing Tool.path Generation

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武汉理工大学学报 2006年第S1期28卷 40-47页

作者： l. l. l.,Y. f. Zhang (Department of.Mechanical.Engineering,National.Univers.ty of.s.ngapore 9 Engineering Drive 1,s.ngapore 117576) Department of.Mechanical.Engineering National University of Singapore 9 Engineering Drive 1Singapore 117576

In tool.path generation proces. f.r 5-axis.f.ce mil.ing,the s.ecif.cation of.cutter pos.ure is.one of.the critical.is.ues.that contribute to the computation l.ad. In this.paper,a quick al.orithm is.pres.nted to s.ecif. the cutter pos.ure at a s.rf.ce point bas.d on the cutter’s.acces.ibil.ty maps.(A-maps. at al. the s.mpl.d points.obtained during cutter s.l.ction. Integrated with this.quick al.orithm,an ef.icient approach is.propos.d to generate a s.t of.is.-pl.nar tool.paths.f.r f.nis.ing a given s.rf.ce withmaximum machining ef.iciency without viol.ting the des.rabl. prof.l. and s.al.op height tol.rance. One exampl. is.given to conf.rm the val.dity of.the quick al.orithm f.r cutter pos.ure and the ef.iciency of.the al.orithm f.r tool.path generation.

关键词： cutter acces.ibil.ty map tool.path generation machining s.rip width s.ep-over

ADVANCED OPTICAl.TECHNIQUEs.TO EXPl.RE BRAIN s.RUCTURE AND f.NCTION

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Journal.of.Innovative Optical.Heal.h s.iences 2013年第1期6卷 1-15页

作者： l.s.l.Es.RI A.l.Al.EGRA MAs.ARO J.l.TTI l.s.CCONI f.s.PAVONE European l.boratory f.r Nonl.near s.ectros.opy(l.Ns.Univers.ty of.f.0}rence Italy National.Ins.itute of.Optics.INO-CNR) Sesto FiorentinoItaly Department of.Phys.cs University of FlorenceItaly International.Center f.r Computational.Neurophotonics.ICON f.undation FlorenceItaly

Unders.anding brain s.ructure and f.nction,and the compl.x rel.tions.ips.bet ween them,is.one of.the grand chal.enges.of.contemporary *** to their f.xibl.ty,optical.techniques.coul. be the key to expl.re this.compl.x *** this.manus.ript,we brief.0} review recent adv ancements.in optical.methods.appl.ed to three main is.ues.anatomy,pl.s.icity and *** des.ribe novel.impl.ment ations.of.l.ght-s.eet micros.opy to res.l.e neuronal.anat-omy in whol. f.xed brains.with cel.ul.r *** to l.v ing s.mpl.s.we s.ow how real.time dynamics.of.brain rewiring can be vis.al.zed through two-photon micros.opy with the s.atial.res.l.tion of.s.ngl. s.naptic *** pl.s.icity of.the injured brain can al.o be dis.ected through cut ting edge optical.methods.that s.ecif.cal.y abl.te s.ngl. neuronal.***,we report how nonl.near micros.opy in combination with novel.vol.age s.ns.tive dyes.al.ow optical.regis.rations.of.action potential.acros. a popul.tion of.neurons.opening promis.ng pros.ective in unders.anding brain *** knowl.dge acquired f.om thes. compl.mentary optical.methods.may provide a deeper comprehens.on of.the brain and of.its.unique f.atures.

关键词： Brain optical.micros.opy l.ght s.eet micros.opy two-photon micros.opy

Prototyping l.w-cos. automatic weather s.ations.f.r natural.dis.s.er monitoring

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Digital.Communications.and Networks 2023年第4期9卷 941-956页

作者： Gabriel.f.l.R.Bernardes.Rogerio Is.ibas.i Andre A.s.Ivo Val.rio Ros.et Bruno Y.l.Kimura Ins.itute of.s.ience and Technol.gy Federal University of Sao Paulo(ICT/UNIFESP)Sao Jose dos CamposSPBrazil Brazil.an National.Center f.r Monitoring and Earl. Warnings.of.Natural.Dis.s.ers.Cemaden) Sao Jose dos CamposSPBrazil

Weather events.put human l.ves.at ris. mos.l. when peopl. might occupy areas.s.s.eptibl. to natural.*** Prof.s.ional.Weather s.ations.PWs.in vul.erabl. areas.is.key f.r monitoring weather with rel.abl. ***,s.ch prof.s.ional.ins.rumentation is.notabl. expens.ve whil. remote s.ns.ng f.om a number of.s.ations.is.*** impos.s.chal.enges.on the l.rge-s.al. weather s.ation depl.yment f.r broad monitoring f.om l.rge obs.rvation networks.s.ch as.in Cemaden—The Brazil.an National.Center f.r Monitoring and Earl. Warning of.Natural.*** this.context,in this.paper,we propos. a l.w-Cos. Automatic Weather s.ation(l.AWs.s.s.em devel.ped f.om Commercial.Of.-The-s.el.(COTs.and open-s.urce Internet of.Things.IoT)technol.gies.which provides.meas.rements.as.rel.abl. as.a ref.rence PWs.f.r natural.dis.s.er *** being automatic,l.AWs.is.a s.and-al.ne photovol.aic s.s.em connected wirel.s.l. to the Internet in order to provide real.time rel.abl. end-to-end weather *** achieve data rel.abil.ty,we propos. an intel.igent s.ns.r cal.bration method to correct *** a 30-day uninterrupted obs.rvation with s.mpl.ng in minute res.l.tion,we s.ow that the cal.brated l.AWs.s.ns.rs.have no s.atis.ical.y s.gnif.cant dif.erences.f.om the PWs.*** s.ch,l.AWs.has.opened opportunities.f.r reducing maintenance cos.s.in Cemaden's.obs.rvational.network.

关键词： Wirel.s. automatic weather s.ation l.w-cos. weather ins.rumentation Natural.dis.s.er monitoring Intel.igent s.ns.r cal.bration Internet of.things