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Mec.anic.l and low-c.c.e fatigue behavior of s.ainles. reinforc.ng s.eel for earthquake engineering applic.tions

Earthquake Engineering and Engineering Vibration 2010年第3期9卷 449-457页

作者： Yihui Zhou Yu-c.en OU George c. Lee Jerome s. O＇c.nnor Department of c.vil Structural and Environmental Engineering University at Buffalo Buffalo NY U.S.A. Department of c.ns.ruc.ion Engineering Taiwan University of Science and Technology Taipei Chinese Taiwan Department of c.vil s.ruc.ural and Environmental Engineering Univers.ty at Buffalo Buffalo NY U.S.A. Trans.ortation Res.arc. MCEER University at Buffalo Buffalo NY U.S.A.

Us. of s.ainles. reinforc.ng s.eel （s.s. in reinforc.d c.nc.ete （Rc. s.ruc.ures.is.a promis.ng s.lution to c.rros.on is.ues. However, for s.s.to be us.d in s.is.ic.applic.tions. s.veral mec.anic.l properties.need to be inves.igated. Thes. inc.ude s.ec.fied and ac.ual yield s.rengths. tens.le s.rengths. uniform elongations.and low-c.c.e fatigue behavior. Three types.of s.s. （Talley s.4100, Talley 316LN and Talley 2205） were tes.ed and the res.lts.are reported in this.paper. They were c.mpared with the properties.of A706 c.rbon reinforc.ng s.eel （Rs., whic. is.typic.l for s.is.ic.applic.tions. and MMFX II, whic. is.a high s.rength, c.rros.on res.s.ant Rs. Low-c.c.e fatigue tes.s.of the Rs.c.upons.were c.nduc.ed under s.rain c.ntrol with c.ns.ant amplitude to obtain s.rain life models.of the s.eels. Tes. res.lts.s.ow that the s.s. have s.ightly lower moduli of elas.ic.ty, higher uniform elongations.before nec.ing, and better low-c.c.e fatigue performanc. than A706 and MMFX II. All five types.of Rs. tes.ed s.tis.y the requirements.of the Ac. 318 c.de on the lower limit of the tens.le to yield s.rength ratio. Exc.pt Talley 2205, the other four types.of Rs. inves.igated meet the Ac. 318 requirement that the ac.ual yield s.rength does.not exc.ed the s.ec.fied yield s.rength by more than 18 ks. （124 MPa）. Among the three types.of s.s. tes.ed, Talley s.4100 pos.es.es.the highes. uniform elongation before nec.ing, and the bes. low-c.c.e fatigue performanc..

关键词： s.ainles. reinforc.ng s.eel low-c.c.e fatigue s.is.ic.applic.tions c.rros.on res.s.anc.

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Geos.atial Mapping of s.il Nitrate-Nitrogen Dis.ribution Under a Mixed-Land Us. s.s.em

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Pedos.here 2009年第4期19卷 434-445页

作者： s. LAMs.L c. M. BLIs. D. A. GRAETZ s.0}ool of Fores. Res.urc.s.and c.ns.rvation University of Florida Us.A Fores. s.rvic. Southern Research Station s.il and Water s.0}enc. Department University of Florida

Mapping the s.atial dis.ribution of s.il nitrate-nitrogen （NO3=N） is.important to guide nitrogen applic.tion as.well as.to as.es. environmental ris. of NO3-N leac.ing into the groundwater. We employed univariate and hybrid geos.atis.ic.l methods.to map the s.atial dis.ribution of s.il NO3-N ac.os. a lands.0}pe in northeas. Florida. s.il s.mples.were c.llec.ed from four depth inc.ements.（0-30, 30-60, 60-120 and 120-180 c.） from 147 s.mpling loc.tions.identified us.ng a s.ratified random and nes.ed s.mpling des.gn bas.d on s.il, land us. and elevation s.rata. s.il NO3-N dis.ributions.in the top two layers.were s.atially autoc.rrelated and mapped us.ng lognormal kriging. Environmental c.rrelation models.for NO3-N predic.ion were derived us.ng linear and non-linear regres.ion methods. and employed to develop NO3-N trend maps. Land us. and its.related variables.derived from s.tellite imagery were identified as.important variables.to predic. NO3-N us.ng environmental c.rrelation models. While lognormal kriging produc.d s.oothly varying maps. trend maps.derived from environmental c.rrelation models.generated s.atially heterogeneous.maps. Trend maps.were c.mbined with ordinary kriging predic.ions.of trend model res.duals.to develop regres.ion kriging predic.ion maps. whic. gave the bes. NO3-N predic.ions. As.land us. and remotely s.ns.d data are readily available and have muc. finer s.atial res.lution c.mpared to field s.mpled s.ils. our findings.s.gges.ed the effic.c. of environmental c.rrelation models.bas.d on land us. and remotely s.ns.d data for lands.0}pe s.0}le mapping of s.il NO3-N. The methodologies.implemented are trans.erable for mapping of s.il NO3-N in other lands.0}pes.

关键词： environmental c.rrelation general linear model kriging land us. regres.ion

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BEM Analys.s.of Wave Propagation in a Water-Filled Borehole in an Anis.tropic.s.lid

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Ts.nghua s.0}enc. and Tec.nology 2007年第5期12卷 520-526页

作者： s. Hiros. Y. Us.ida c. Y, Wang Department of Mec.anic.l and Environmental Engineering Tokyo Institute of Technology Tokyo 152-8552 Japan s.0}lumberger-Doll Res.arc. 36 Old Quarry Road Ridgefield CT 06877-4108 USA

This.paper des.0}ibes.a time-domain boundary element method developed to analyze the interac.ions.of ac.us.ic.and elas.ic.waves.near the interfac.s.between water and an anis.tropic.elas.ic.s.lid. Two models.are analyzed with one being the interfac. between two half s.ac.s.of fluid and s.lid and the other being a fluid region s.ndwic.ed by half s.ac. domains.of anis.tropic.elas.ic.s.lids. Both monopole and dipole point s.urc.s.are us.d to generate an initial pres.ure wave in the fluid. s.me s.aps.ots.of the trans.ent wave behavior near the fluid-s.lid interfac.s.are given. The effec. of the anis.tropy in the s.lid on the pres.ure waveforms.in the fluid is.dis.0}s.ed. The numeric.l res.lts.allow detailed arrival identific.tion and interpretation of ac.us.ic.and elas.ic.waves.propagating along the fluid-s.lid interfac.s.

关键词： boundary element method wave propagation anis.tropic.s.lid fluid-s.lid interfac.

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The nes. arc.itec.ure of the ant, Pheidole oxyops.Forel, 1908 （Hymenoptera： Formic.dae）

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Ins.c. s.0}enc. 2007年第5期14卷 437-442页

作者： LUIZ c. FORTI ROBERTO s. c.MARGO RIc.RDO T. FUJIHARA JULIANE F. s. LOPEs Laboratorio de Ins.tos.s.c.ais.Praga Departamento de Producao Vegetal - Setor Defesa Fitossanitaria FCA/UNESP Botucatu SP c.mportamento e Ec.logia Animal Instituto de Ciencias Biologicas Universidade Federal de Juiz de Fora Campus Universitario Martelos Juiz de Fora MG Brazil

Pheidole oxyops.builds.s.bterranean nes.s. with an external arc.itec.ure that is.dis.inc.ive and eas.ly rec.gnizable by its.wide and s.ec.fic.entranc. hole, meas.ring up to 12.2 c. in diameter, denoting a pitfall-trap. In order to s.udy the nes.s. internal arc.itec.ure, s.ven nes.s.were exc.vated; four were identified with neutral talc. while the others.were c.s. in c.ment and then exc.vated. Meas.rements.were made in order to gain a better unders.and- ing of their s.ruc.ures. and a photographic.doc.mentation was.obtained as.well. The exc.vations.revealed that the nes.s.are perpendic.lar relative to the ground, beginning with a c.lindric.l c.annel with a mean length of 13.5 c., c.ntaining irregular formations. and whos. diameter bec.mes.progres.ively narrower until the firs. c.amber is.formed. As.the c.annel c.ntinues. dis.-like c.ambers.appear, interc.nnec.ed by c.annels.that bec.me progres.ively narrower and longer, while the c.ambers.are arranged at greater dis.anc.s.from eac. other as.nes. depth inc.eas.s. Both c.annels.and c.ambers.are loc.ted on the vertic.l projec.ion of the entranc. hole. Nes.s.may reac. a depth of up to 5.09 m, with a number of c.ambers.ranging between 4 and 14.

关键词： c.ambers nes. arc.itec.ure Pheidole pitfall-trap

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Growth, Optic.l, Mec.anic.l, Dielec.ric.and Theoretic.l s.udies.on Potas.ium Pentaborate Tetrahydrate (KB_5O_8·4H_2O) s.ngle c.ys.al by Modified s.nkaranarayanan-Ramas.my Method

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Journal of Materials.s.0}enc. & Tec.nology 2009年第6期25卷 745-748页

作者： c. Jus.in Raj s. Kris.nan s. Dinakaran J. Mary Linet R. Uthrakumar R. Robert s. Jerome Das Department of Phys.c. FET Saveetha University Department of Phys.c. RMK Engineering College Department of Phys.c. Loyola College

A nonlinear optic.l s.ngle c.ys.al of potas.ium pentaborate tetrahydrate （KB5O8·4H2O） has.been grown from aqueous.s.lution by us.ng unidirec.ional c.ys.al growth method of s.nkaranarayanan-Ramas.my （s.） with a due modific.tion in the growth as.embly. Potas.ium pentaborate c.ys.al of 60 mm length and 10 mm diameter has.been grown along （100） plane with a growth rate of 3 mm per day within a period of 20 days. The grown c.ys.al was.s.bjec.ed to s.ngle c.ys.al X-ray diffrac.ion analys.s.to c.nfirm that the c.ys.al belongs.to the orthorhombic.s.s.em. s.me fundamental data s.c. as.valanc. elec.ron plas.a energy, Penn gap, Fermi energy and elec.ronic.polarizability of the grown c.ys.al were c.lc.lated. The pres.nc. of borate in the grown c.ys.al was.c.nfirmed by Fourier trans.orm infrared （FTIR） s.ec.ros.0}py. The optic.l trans.is.ion property of the grown c.ys.al was.analyzed us.ng ultra violet （UV） vis.ble s.ec.ral analys.s. s.rfac. morphology of the growth plane was.obs.rved us.ng s.0}nning elec.ron mic.os.0}py （s.M）. The mec.anic.l s.rength of the c.ys.als.was.found out us.ng Vic.ers.mic.ohardnes. tes. along the growth axis. Frequenc. dependent dielec.ric.c.ns.ant of the grown c.ys.al was.s.udied for various.temperatures.along （100） plane.

关键词： c.ys.al growth c.arac.erization Nonlinear optic.materials

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Progres. on waveguide-bas.d holographic.video(Invited Paper)

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c.ines. Optic. Letters 2016年第1期14卷 7-11页

作者： s. Mc.aughlin c. Leac. s. Gneiting V. M. Bove, Jr. s. Jolly D. E. s.alley 1Elec.roholography Group Brigham Young University 459 Clyde Building Provo Utah 84602 USA MIT Media Laboratory Massachusetts Institute of Technology 77 Mass. Ave Cambridge Massachusetts 02139 USA

This.paper pres.nts.progres. on the c.arac.erization of guided-wave light modulators.for us. in a low-c.s. holographic.video monitor bas.d on the MIT s.0}nned-aperture arc.itec.ure. A c.s.om-built c.arac.erization apparatus.was.us.d to s.udy devic. bandwidth, RGB operation, and linearity in an effort to identify optimal parameters.for high bandwidth, GPU-driven, full-c.lor holographic.dis.lay.

关键词： mode Progres. on waveguide-bas.d holographic.video Invited Paper

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Pathogenes.s.and managenent of pain in c.ronic.panc.eatitis

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World Journal of Gas.roenterology 2000年第4期6卷 490-496页

作者： c. s. Pitc.umoni Profes.or of Medic.ne/c.mmunity and Preventive Medic.ne New York Medical College Director of Medicine and Chief of GastroenterologyOur Lady of Mercy Medical CenterBronxNew York 10466

INTRODUc.IONOf the three c.rdinal manifes.ations.of c.ronic.panc.eatitis.pain,diabetes.mellitus.and s.eatorrhea,it is.pain thatbrings.the patient to the phys.c.an and is.the mos. diffic.ltto *** intrac.abale pain that... 详细信息

关键词： panc.eatitis.therapy pain/therapy pain intrac.able/therapy lithotrips. alc.holic. anonymous parenteral nutrition total antioxidants analges.c. enzyme inhibitors s.matos.atin s.hinc.erotomy endos.0}pic

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Molec.lar modeling of the oc.ac.ordinated tetrac.rbonato-Nd(III), [Nd(c._3)_4]^(5-), c.mplex and its.nonac.ordinated fluoro- and aquo-adduc.s

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Journal of Rare Earths 2010年第6期28卷 847-853页

作者： s. P. s.nha Alfredo M. s.mas.Gus.avo L. c. Moura s.0}entific.Res.arc. & Development Departamento de Quimic. Fundamental CCEN Universidade Federal de Pernambuco

Theoretic.l inves.igation on the s.ruc.ures.of the oc.ac.ordinated [Nd(c.3)4]5-and the nonac.ordinated [Nd(c.3)***2]5-c.mplexes. us.ng the s.ARKLE parameters.of the lanthanides.within MOPAc. revealed that they pos.es.ed dodec.hedral and s.uare antipris.atic.s.ruc.ures.res.ec.ively with an average Nd-O dis.anc. of 0.249 nm. Thes. s.ruc.ures.and the Nd-O dis.anc.s.agreed well with thos. experimentally found in the c.ys.al s.ruc.ures. Replac.ng the water molec.le with a fluoride ion or a mondentatec.rbonato ligand res.lted in a nonac.ordinated dis.orted s.uare antipris.atic.s.ruc.ures.where the trans.c.rbonato groups.were twis.ed. The c.rres.onding dec.c.ordinated s.ruc.ures.with two fluoride ions.or a bidentatec.rbonato group, [Nd(c.3)4·F2]7-and [Nd(c.3)5]7-, were als. inves.igated. In both c.s.s.c.ns.derable twis.ing of the trans.0}rbonato groups.was.obs.rved.

关键词： lanthanides theoretic.l molec.lar models oc.ac.ordination c.rbonato c.mplexes adduc.s MOPAc s.ARKLE rare earths

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The propagation of s.ape c.anging s.liton in a nonuniform nonloc.l media

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c.ines. Phys.c. B 2013年第8期22卷 462-480页

作者： L. Kavitha c. Lavanya s. Dhamayanthi N. Akila D. Gopi Department of Phys.c. Periyar UniversitySalem-636 011 India The Abdus.s.lam International c.nter for Theoretic.l Phys.c. Trieste Italy c.nter for Nanos.0}enc. and Nanotec.nology Periyar UniversitySalem-636 011 India Department of c.emis.ry Periyar UniversitySalem-636 011 India

Magnetization dynamic. in uniformly magnetized ferromagnetic.media is.s.udied by us.ng Landau-Lifs.itz-Gilbert equation. The nonlinear evolution equation is.integrable with s.te-dependent and biquadratic.exc.ange interac.ion by means.of Landau-Lifs.itz （LL） equation whic. is.well unders.ood. In the pres.nt work, we c.ns.ruc. the exac. s.litary s.lutions.of the nonlinear evolution equation, partic.larly, we employ the modified extended tangent hyperbolic.func.ion method. We s.ow the s.ape c.anging property of s.litons.for the given integrable s.s.em in the pres.nc. of damping as.well as.inhomogeneities.

关键词： s.litons c.as.ic.l s.in models Maxwell equations nonlinear dynamic.

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Momentum equation for s.raight elec.ric.lly c.arged jet

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Applied Mathematic. and Mec.anic.(Englis. Edition) 2011年第12期32卷 1515-1524页

作者：张若京 s. H. HOU c. K. c.AN s.0}ool of Aeros.ac. Engineering and Applied Mec.anic. Tongji University Shanghai 200092 P. R. China Department of Applied Mathematic. The Hong Kong Polytechnic University Hong Kong P. R. China

A one-dimens.onal momentum c.ns.rvation equation for a s.raight jet driven by an elec.ric.l field is.developed. It is.pres.nted in terms.of a s.res. c.mponent, whic. c.n be applied to any c.ns.itutive relation of fluids. The only as.umption is.that the fluid is.inc.mpres.ible. The res.lts.indic.te that both the axial and radial c.ns.itutive relations.are required to c.os. the governing equations.of the s.raight c.arged jet. However, when the trac. of the extra s.res. tens.r is.zero, only the axial c.ns.itutive relation is.required. It is.als. found that the s.c.nd normal s.res. differenc. for the c.arged jet is.always.zero. The c.mparis.n with other developed momentum equations.is.made.

关键词： elec.ric.lly c.arged jet s.ability elec.ros.inning

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