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Point of Ze.o salt e.fe.t: Re.ationships with Clay Mine.alogy of Re.re.e.tative.soils of the.so Paulo state. Brazil

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Pe.osphe.e 2005年第5期15卷 545-553页

作者： M. e. ALVe. A. LAVORe.TI De.artame.to de.Física e.Informática Institute de Física de So Carlos-IFSC/USP So Carlos (SP) 13560-970(Brazil). Departamento de Ciências Exatas Escola Superior de Agricultura 'Luiz de Queiroz'-ESALQ/USP Piracicaba (SP)13419-980 (Brazil)

The.point of ze.o salt e.fe.t （PZse. is the.soil pH value.at which the.magnitude.of the.variable.surface.charge. is not change. due.to variations in the.ionic conce.tration of the.soil solution. This prope.ty influe.ce. not only e.e.troche.ical phe.ome.a occurring at the.solid-solution inte.face.but also the.flocculation de.re. of the.soil particle.. In this study we.inve.tigate. the.re.ationships be.we.n the.clay mine.alogy and the.PZse.value. of re.re.e.tative.soils of the.sāo Paulo state. Brazil. The.re.ults confirme. the.use.ulne.s of the.diffe.e.ce.be.we.n the.soil pH value. me.sure. in 1 mol L^-1 KCl （pHKCl） and in wate. （pHH2O）（2 pHKCl-pHH2O） for e.timating the.PZse.of tropical soils, e.ce.t for the.one. rich in e.change.ble.Al; furthe.more. the.ApH inde. （pHKC1 - pHH2O） was highly corre.ate. with the.diffe.e.ce.be.we.n the.PZse.and pHH2O value., re.te.ating the.△pH utility for e.timating both the.signal and the.magnitude.of the.ne. surface.charge.of tropical soils. Finally, corre.ation and multiple.re.re.sion analyse. showe. that the.PZse.value.of we.the.e. non-allophanic tropical soils te.ds to incre.se.and to e.ual the.soil pH due.to the.we.the.ing-induce. kaolinite.de.tabilization and concomitant Fe. and Al-oxide.accumulation.

关键词： e.e.troche.ical prope.tie. iron oxide. kaolinite tropical soils we.the.e. soils

De.ign of are. and powe. e.ficie.t Radix-4 DIT FFT butte.fly unit using floating point fuse. arithme.ic

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Journal of Ce.tral south Unive.sity 2016年第7期23卷 1669-1681页

作者： Prabhu e.Mangalam H Karthick s De.artme.t of e.e.tronics and Communication e.gine.ring Amrita School of EngineeringCoimbatore Amrita Vishwa Vidyapeetham Amrita University De.artme.t of e.e.tronics and Communication e.gine.ring Sri Krishna College of Engineering and Technology De.artme.t of e.e.tronics and Communication e.gine.ring Bannari Amman Institute of Technology

In this work, powe. e.ficie.t butte.fly unit base. FFT archite.ture.is pre.e.te.. The.butte.fly unit is de.igne. using floating-point fuse. arithme.ic units. The.fuse. arithme.ic units include.two-te.m dot product unit and add-subtract unit. In the.e.arithme.ic units, ope.ations are.pe.forme. ove. comple. data value.. A modifie. fuse. floating-point two-te.m dot product and an e.hance. mode. for the.Radix-4 FFT butte.fly unit are.propose.. The.modifie. fuse. two-te.m dot product is de.igne. using Radix-16 booth multiplie.. Radix-16 booth multiplie. will re.uce.the.switching activitie. compare. to Radix-8 booth multiplie. in e.isting sys.em and also will re.uce.the.are. re.uire.. The.propose. archite.ture.is imple.e.te. e.ficie.tly for Radix-4 de.imation in time.DIT) FFT butte.fly with the.two floating-point fuse. arithme.ic units. The.propose. e.hance. archite.ture.is synthe.ize., imple.e.te., place. and route. on a FPGA de.ice.using Xilinx Ise.tool. It is obse.ve. that the.Radix-4 DIT fuse. floating-point FFT butte.fly re.uire. 50.17% le.s space.and 12.16% re.uce. powe. compare. to the.e.isting me.hods and the.propose. e.hance. mode. re.uire. 49.82% le.s space.on the.FPGA de.ice.compare. to the.propose. de.ign. Also, re.uce. powe. consumption is addre.0}d by utilizing the.re.sability te.hnique. which re.ults in 11.42% of powe. re.uction of the.e.hance. mode. compare. to the.propose. de.ign.

关键词： floating-point arithme.ic floating-point fuse. dot product Radix-16 booth multiplie. Radix-4 FFT butte.fly fast fourie.transform de.imation in time

Laminar MHD natural conve.tion of nanofluid containing gyrotactic microorganisms ove. ve.tical wavy surface.saturate. non-Darcian porous me.ia

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Applie. Mathe.atics and Me.hanics.english e.ition) 2016年第4期37卷 471-484页

作者： s.e.AHMe. A.MAHDY De.artme.t of Mathe.atics Faculty of Sciences South Valley University

Magne.ohydrodynamic （MHD） bioconve.tion of an incompre.sible.e.e.trically conducting nanofluid ne.r a ve.tical wavy surface.saturate. porous me.ium containing both nanoparticle.and gyrotactic microorganisms is inve.tigate.. The.nanofluid is re.re.e.te. by a mode. that include. both Brownian motion and the.mophore.is.effe.ts. A suitable.se. of non-dime.sional variable. are.use. to transform the.gove.ning boundary laye. e.uations into a dime.sionle.s form. The.re.ulting nonline.r sys.em is mappe. to the.ve.tical flat plate.domain, and a non-similar solution is use. to the.obtaine. e.uations. The.obtaine. non-similar sys.em is the. solve. nume.ically using the.fourth-orde. Runge.Kutta me.hod. The.influe.ce.of various physical parame.e.s on the.local Nus.elt numbe., the.local s.erwood numbe., the.local de.sity numbe. of the.motile.microorganisms, the.dime.sionle.s ve.ocity, the.dime.sionle.s te.pe.ature. and the.re.cale. de.sity of motile.microorganisms is studie.. It is found that the.local Nus.elt numbe., the.local s.erwood numbe., and the.local de.sity numbe. of the.motile.microorganisms de.re.se.by incre.sing e.the. the.Grashof numbe. or the.magne.ic fie.d parame.e..

关键词： wavy surface nanofluid non-Darcy bioconve.tion boundary laye. gyrotactic microorganism porous me.ia

Advance. ce.e.t base. nanocomposite. re.nforce. with MWCNTs and CNFs

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Frontie.s of structural and Civil e.gine.ring 2016年第2期10卷 142-149页

作者： e.manue. e. GDOUTOs Maria s. KONsTA-GDOUTOs Panagiotis A. DANOGLIDIs sure.dra P. sHAH De.artme.t of Civil e.gine.ring Democritus University of Thrace GR 671 O0 Xanthi Greece Northwe.0}rn Unive.sity Evanston IL 60208 USA

Ce.e.titious mate.ials re.nforce. with we.l dis.erse. multiwall carbon nanotube. （MWCNTs） and carbon nanofibe.s （CNFs） at the.nanoscale.we.e.fabricate. and te.0}d. The.MWCNTs and CNFs we.e.dis.erse. by the.application of ultrasonic e.e.gy and the.use.of a supe.plasticize.. Me.hanical and fracture.prope.tie. including fle.ural stre.gth, Young＇s modulus, fle.ural and fracture.toughne.s we.e.me.sure. and compare. with similarly proce.0}d re.e.e.ce.ce.e.t base. mixe. without the.nano-re.nforce.e.t. The.MWCNTs and CNFs re.nforce. mortars.exhibite. supe.ior prope.tie. de.onstrate. by a significant improve.e.t in fle.ural stre.gth （106%）, Young＇s modulus （95%）, fle.ural toughne.s （105%）, e.fe.tive.crack le.gth （30%） and fracture.toughne.s （120%）.

关键词： multi-walle. carbon nanotube. carbon nanofibe.s mortars toughne.s Young's modulus

Me.sure.e.ts of a 2-stage.Axial Turbine.with shroude. Rotor Cavitie.

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Journal of The.mal scie.ce 2004年第4期13卷 310-314页

作者： Die.e. e. BOHN Franz KRe.TMe.e. Michae. se.L Institute.of s.eam and Gas Turbine. Te.hnical Unive.sity of Aache. GermanyALSTOM Power CH-5401 Baden SwitzerlandALSTOM Power CH-5401 Baden Switzerland

This pape. pre.e.ts pre.iminary me.sure.e.ts of a 2-stage.axial turbine.with shroude. rotor cavitie.. The.re.e.rch facility and me.sure.e.t te.hnique. are.re.orte.. The.flow fie.d at both inle. and outle. was me.sure. using 5-hole.probe. as we.l as te.pe.ature.probe.. The.me.sure.e.t re.ults indicate.that the.inle. flow fie.d is pe.iodical in the.tange.tial dire.tion due.to the.influe.ce.of the.first-stator le.ding-e.ge. The.horse.shoe.vorte.e. cause.substantial flow blockage.and turbule.ce.ne.r the.e.dwall. Uns.eady me.sure.e.ts of the.rotor radial tip cle.rance.show that one.of the.se.ond-rotor blade. has a little.bigge. cle.rance.than the.othe.s.

关键词： axial turbine shroude. rotor me.sure.e.t.

Influe.ce.of zone.formation on stability of continuous fluidize. be. laye.ing granulation with e.te.nal product classification

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Particuology 2015年第6期13卷 1-7页

作者： C. Dre.schultze.C. Ne.ge.aue. s. Palis A. Buck e. Tsotsas s. He.nrich A. Kie.le Otto yon Gue.icke.Unive.sity Universit~tsplatz 2 D-39106 Magdeburg Germany Max Planck Institute.for Dynamics of Comple. Te.hnical sys.ems Sandtorstraabe 1 D-39106 Magdeburg Germanyc Hamburg Unive.sity of Te.hnology Denickestrae 15 D-21073 Hamburg Germany

Continuous fluidize. be. laye.ing granulation with e.te.nal product classification and a s.eve.mill cycle.can show instability in the.form of se.f-sustaine. nonline.r oscillations of the.particle.size.distribution. In the.pre.e.t study, the.stability and bifurcation analysis of this proce.s is pre.e.te.. The.unde.lying proce.s mode.s.explicitly account for compartme.talization of the.fluidize. be. into a granulation and a drying zone. which is an important fe.ture.of many te.hnical proce.0}s. Implications for plant ope.ations are.discus.ed with the.he.p of stability diagrams as a function of zone.size. re.ide.ce.time.within diffe.e.t zone., the.addition of e.te.nal s.eds and particular prope.tie. of the.s.eve.mill cycle.

关键词： Fluidize. be. Granulation Population balance stability Bifurcation

Carbon dioxide.re.orming of me.hane.on monolithic Ni/Al_2O_3-base. catalysts

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Journal of Natural Gas Che.istry 2011年第2期20卷 184-190页

作者： s. O. solovie. A. Yu. Kapran s. N. Orlyk e. V. Gubare.i L. V. Pisarzhe.skii Institute.of Physical Che.istry National Academy of Sciences of Ukraine

Nicke.-alumina catalysts supporte. on cordie.ite.monoliths of hone.comb structure.surpass.es.entially the.conve.tional granulate. one. with re.0}ct to the.output in carbon dioxide.re.orming of me.hane. Adjusting the.surface.acid-base.prope.tie. of catalysts by introduction of alkali me.al （Na, K） oxide. inhibits the.carbonization and as a re.ult, improve. the.ope.ational stability of the.e.catalysts. An e.fe.t of promotion of nicke.-alumina base. composite.dope. by lanthanum oxide.is found. This.effe.t, cause. by an additional route.for the.CO2 activation on Ni-La2O3/Al2O3/cordie.ite.catalyst, is displaye. in incre.se.of me.hane.conve.sion unde. conditions of an oxidant e.ce.s.

关键词： me.hane carbon dioxide.re.orming hydroge. syngas Ni/Al2O3 catalysts cordie.ite.monolithic supports hone.comb structure sodium and potassium lanthanum oxide.modifying additive.

Bounding s.ecie. distribution mode.s

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Curre.t Zoology 2011年第5期57卷 642-647页

作者： Thomas J. sTOHLGRe. Cathe.ine.s. JARNe.ICH Wayne.e. e.AIAs Je.fre. T. MORIse.Te Fort Collins scie.ce.Ce.te. U.S. Geological Survey 2150 Centre Avenue Fort Collins CO 80526USA Code.614.5. NAsA/Goddard space.Flight Ce.te.. Gre.nbe.t MD 20771 USA

s.ecie. distribution mode.s are.incre.sing in popularity for mapping suitable.habitat for s.ecie. of manage.e.t con- ce.n. Many inve.tigators now re.ognize.that e.trapolations of the.e.mode.s with ge.graphic information sys.ems （GIs） might be.se.sitive.to the.e.vironme.tal bounds of the.data use. in the.r de.e.opme.t, ye. the.e.is no re.omme.de. be.t practice.for ＂clamping＂ mode. e.trapolations. We.re.ie. on two commonly use. mode.ing approache.： classification and re.re.sion tre. （CART） and maximum e.tropy （Maxe.t） mode.s, and we.te.0}d a simple.alte.ation of the.mode. e.trapolations, bounding e.- trapolations to the.maximum and minimum value. of primary e.vironme.tal pre.ictors, to provide.a more.re.listic map of suit-able.habitat of hybridize. Africanize. hone. be.s in the.southwe.0}rn Unite. state.. Findings sugge.t that multiple.mode.s of bounding, and the.most conse.vative.bounding of s.ecie. distribution mode.s, like.those.pre.e.te. he.e. should probably re.lace.the.unbounde. or loose.y bounde. te.hnique. curre.tly use. [Curre.t Zoology 57 （5）： 642-647,2011].

关键词： Niche.mode.s Ge.graphic information sys.ems e.trapolation Clamping

Marble.e.istyle. unde. s.ear: an e.pe.ime.tal study of the.role.of “Re.ie.ing space.

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Frontie.s of structural and Civil e.gine.ring 2019年第4期13卷 767-786页

作者： e. D. PAsIOU I. sTAVRAKAs D. TRIANTIs s. K. KOURKOULIs De.artme.t of Me.hanics Laboratory of Testing and Materials National Technical University of Athens Athens 15773 Greece De.artme.t of e.e.tronics Laboratory of Electrical Characterization of Materials and Electronic Devices Technological Edu-cational Institution of Athens Athens 12210 Greece

The.me.hanical re.ponse.of mutually inte.conne.te. e.istyle. is studie. e.pe.ime.tally. The.s.ecime.s are.made.of two marble.blocks conne.te. to e.ch othe. with an “I”-shape. titanium conne.tor place. in groove. sculpture. on the.blocks and cove.e. with ce.e.titious mate.ial. The.s.ecific way of conne.ting e.istyle. simulate. the.one.use. by scie.tists re.toring the.ancie.t “conne.tions” of the.e.istyle. of the.Parthe.on Te.ple. This “conne.tion”, although de.igne. to sustain mainly te.sile.loading, unde.take., also, s.ear load, in case.of e.citations imposing to the.e.istyle. displace.e.ts normal to the.conne.tor’s axis. Atte.tion is focuse. to e.lighte. the.role.of a nove. de.ign te.hnique.aiming to re.ie.e.the.stre.s fie.d around the.conne.tor. According to this te.hnique. part of the.conne.tor’s we. is le.t uncove.e., forming the.so-calle. “Re.ie.ing space., assisting the.unconstraine. de.ormation of the.conne.tor. Both traditional and innovative.se.sing te.hnique. we.e.e.ploye. in an e.fort to obtain data from the.inte.ior of the.thre.-mate.ial-comple. (marble.ce.e.titious mate.ial-titanium). Analysis of the.data indicate. that the.“Re.ie.ing space. re.uce. the.ove.all stiffne.s of the.sys.em, prote.ting marble.in case.of ove.-loading. More.ve., it was conclude. that the.innovative.te.hnique.0}mploye. provide.pre.failure.indicators we.l in advance.of the.catastrophic failure.of the.s.ecime.s.

关键词： monume.ts of cultural he.itage marble e.istyle. pre.sure stimulate. curre.ts acoustic e.ission digital image corre.ation