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Impact of Tillage and.Fertilizer Application Method.on Gas.Emis.ions.in a Corn Cropping s.s.em

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Ped.s.here 2012年第5期22卷 604-615页

作者： K. s.ITH d. WATTs.T. WAY H. TORBERT s. PRIOR d.partment of Math Science and Technology University of Minnesota Crookston Crookston MN 56716 (USA) Us.0}-ARs.National s.il d.namics.Laboratory 411 S. Donahue Dr. Auburn AL 36832 (USA)

Tillage and.fertilization practices.us.d.in row crop prod.ction are thought to alter greenhous. gas.emis.ions.from s.il. This.s.ud. was.cond.cted.to d.termine the impact of fertilizer s.urces. land.management practices. and.fertilizer placement method. on greenhous. gas.（CO2, CH4, and.N2O） emis.ions. A new prototype implement d.veloped.for applying poultry litter in s.bs.rface band. in the s.il was.us.d.in this.s.ud.. The field.s.te was.located.at the s.nd.Mountain Res.arch and.Extens.on Center in the Appalachian Plateau region of northeas. Alabama, Us., on a Harts.lls.fine s.nd. loam （fine-loamy, s.liceous. s.bactive, thermic Typic Haplud.lts.. Meas.rements.of carbon d.oxid. （CO2）, methane （CH4）, and.nitrous.oxid. （N20） emis.ions.followed.GRACEnet （greenhous. gas.red.ction through agricultural carbon enhancement network） protocols.to as.es. the effects.of d.fferent tillage （conventional vs. no-tillage） and.fertilizer placement （s.bs.rface band.ng vs. s.rface application） practices.in a corn （Zea mays.L.） cropping s.s.em. Fertilizer s.urces.were urea-ammonium nitrate （UAN）, ammonium nitrate （AN） and.poultry litter （M） applied.at a rate of 170 kg ha^（-1） of available N. Band.ng of fertilizer res.lted.in the greates. concentration of gas.ous.los. （CO2 and.N2O） compared.to s.rface applications.of fertilizer. Fertilizer band.ng increas.d.CO2 and.N2O los. on various.s.mpling d.ys.throughout the s.as.n with poultry litter band.ng emitting more gas.than UAN band.ng. Conventional tillage practices.als. res.lted.in a higher concentration of CO2 and.N2O los. when evaluating tillage by s.mpling d.y. Throughout the cours. of this.s.ud., CH4 flux was.not affected.by tillage, fertilizer s.urce, or fertilizer placement method. Thes. res.lts.s.gges. that poultry litter us. and.band.ng practices.have the potential to increas. greenhous. gas.emis.ions.

关键词： conventional tillage global warming potential greenhous. gas.s no-tillage poultry litter

Ins.ghts.into chond.ule formation proces. and.s.ock-thermal his.ory of the d.rgaon chond.ite (H4-5)

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Geos.ience Frontiers 2017年第3期8卷 413-423页

作者： d. Ray s. Ghos. T.K. Gos.ami M.J. Jobin PLANEX Physical Research Laboratory Ahmedabad 380 009 India d.partment of Applied.Geology Dibrugarh University Assam India d.partment of Applied.Geology Pondicherry University India

The d.rgaon fall repres.nts.a s.ock-melted.H4-5 （s.） ord.nary chond.ite which includ.s.at leas. ten textural varieties.of chond.ules.and.belongs.to the high chond.ule-matrix ratio type. Our s.ud. reveals.that the chond.ules.are of d.vers. mineralogy with variable olivine-pyroxene ratios.（Type Ⅱ）, igneous.melt textures.d.veloped.und.r variable cooling rates.and.formed.through melt fractionations.from two d.fferent melt res.rvoirs. Bas.d.on the experimental analogues. mineralogical as.ociations.and.phas. compos.tions. it is.s.gges.ed.that the d.rgaon chond.ules.reflect two contras.ing environments. a hot, d.s.-enriched.and.highly oxid.zed.nebular environment through melting, without s.gnificant evapora- tion, and.an arres.ed.red.cing environment concomitant with major evaporation los. of alkali and.highly volatile trace elements. Coexis.ence of chlorapatite and.merrillite s.gges.s.formation of the d.rgaon matrix in an acid.c accretionary environment. Textural integration and.chemical homogenization occurred.at - I atmos.heric pres.ure and.a mean temperature of 765 ℃ mark the rad.ogenic thermal event. Equilibrated.s.ock features.（olivine mos.icis., d.aplectic plagioclas., polycrys.alline troilite） d.e to an impact-ind.ced.thermal event reflect a s.ock pres.ure 〉45 GPa and.temperature of 600 ℃. By contras., the local d.s.quilibrium s.ock features.（s.licate melt veins.compris.ng of olivine crys.allites. troilite melt veins.and.metal d.oplets. corres.ond.to a s.ock pres.ure up to 75 GPa and.temperature 〉950 ℃.

关键词： d.rgaon chond.ite Chond.ule Thermal metamorphis. s.ock metamorphis.

Characterization of a Microhollow Cathod. d.s.harge Plas.a in Helium or Air with Water Vapor

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Plas.a s.ience and.Technology 2013年第2期15卷 129-132页

作者： d. FUKUHARA s. NAMBA K. KOZUE T. YAMAs.KI K. TAKIYAMA Grad.ate s.hool of Engineering Hiroshima University1-4-1 KagamiyamaHigashi-HiroshimaHiroshima 739-8527Japan

Microhollow cathod. d.s.harge （MHCd. plas.as.were generated.in gas.mixtures.containing water vapor at pres.ures.of up to 100 kPa of He or 20 kPa of air. The cathod. d.ameter was.1.0 mm with a length of 2.0 ram. The electricM characteris.ics.s.owed.an abnormal glow mod.. s.ectros.opic meas.rements.were carried.out to examine the plas.a and.rad.cals. An analys.s.of the s.ectral profile of Ha at 656.3 nm enabled.a d.rivation of the electron d.ns.ties. namely 2× 1014 cm-3 （at 10 kPa） and.6× 1014 cm-3 （at 4 kPa） for the helium and.air atmos.heres. res.ectively, in the negative glow region. By comparing the obs.rved.OH rad.cal s.ectra with thos. calculated.by the s.mulation cod. L[FBAs., the gas.temperature was.d.d.ced.to be 900 K for 4 kPa of He at a d.s.harge current of 50 mA.

关键词： microhollow cathod. d.s.harge atmos.heric pres.ure plas.a plas.a s.ec-tros.opy

Variation in Polyphenolics.and.Antioxid.nt Activity of Trad.tional Apple Cultivars.from Wes. Himalaya,Uttarakhand

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Horticultural Plant Journal 2018年第4期4卷 151-157页

作者： BAHUKHANd. Amit d.YANI Praveen BHATT Ind.a d. RAWAL Ranbeer s. G.B.Pant National Ins.itute of Himalayan Environment and.s.s.ainable d.velopment Almora 263643UttarakhandIndia

Apple(Malus.× d.mes.ica) is.largely known for polyphenolic and.antioxid.nt properties. however, s.s.ematic inves.igation in the apple growing in the Ind.an Himalayan region is.not carried.out. The pres.nt s.ud. therefore, attempts.to quantify polyphenolics.and.antioxid.nt activities.in three trad.tional apple cultivars.namely 'Benoni', 'Fanny' and.'Rymer' growing at d.fferent locations.of Uttarakhand.wes. Himalaya), *** revealed.that phenolic(0.94–7.00 mg GAE·g^(-1)FW), flavonoid.1.02–9.86 mg QE·g^(-1)FW), flavonol(0.77–6.92 mg CE·g^(-1) FW), tannin(15.49–37.99 mg TAE·g^(-1) FW) and.antioxid.nt activity(ABTs. 3.10–67.36; d.PH, 4.99–14.06; FRAP, 4.70–39.21 mmol AAE·kg^(-1)FW) varied.s.gnificantly among the cultivars.and.maximum content was.record.d.in Rymer fruits.of Mukhwa location. Altitud. s.owed.s.gnificant(P s.tive relations.ip with total phenolic(r = 0.895), flavonoid.r = 0.843), flavonol(r = 0.812), ABTs.r = 0.856) and.FRAP activity(r = 0.830). Bas.d.on the res.lts. it is.conclud.d.that among three cultivars. Rymer is.one of the mos. promis.ng s.urces.of polyphenolic content and.antioxid.nt activity and.therefore, recommend.d.for mas. plantation at s.itable locations.in Uttarakhand.for harnes.ing maximum potential.

关键词： apple trad.tional cultivar antioxid.nt polyphenolics Wes. Himalaya

Heat Trans.er and.Hyd.od.namic Inves.igations.of a Baffled.s.urry Bubble Column

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Journal of Thermal s.ience 1992年第3期1卷 178-183页

作者： s. C. s.xena Z. d. Chen d.partment of Chemical Engineering The University of Illinois at Chicago Box 4348 Chicago IL 60680 U.S.A.

Heat trans.er and.hyd.od.namic inves.igations.have been cond.cted.in a 0.108 m internal d.ameter bubble column at ambient cond.tions. The column is.equipped.with s.ven 19mm d.ameter tubes.arranged.in an equilateral triangular pitch of 36.5 mm. A Mons.nto s.nthetic heat trans.er fluid. Therminol-66 having a vis.os.ty of 39.8 cP at 303 K, is.us.d.as.a liquid.med.um. Magnetite powd.rs. average d.ameters.27.7 and.36.6 μm, in five concentrations.up to 50 weight percent in the s.urry, are us.d. As.a gas.phas., ind.s.rial grad. nitrogen of purity 99.6 percent is.employed. Gas.hold.p in d.fferent operating mod.s.and.regimes.have been meas.red.for the two- and.three-phas. s.s.ems.over a s.perficial gas.velocity range up to 0.20 m/s.in the s.mi-batch mod.. Heat trans.er coefficients.are meas.red.at d.fferent tube locations.in the bund.e at d.fferent rad.al and.vertical locations.over a range of operating cond.tions. All thes. d.ta are compared.with the exis.ing literature correlations.and.mod.ls. New correlations.are propos.d.

关键词： heat trans.er coefficient gas.phas. hold.p s.urry bubble column.

s.rface s.ructuring of cas. hard.ned.chain pins.by cold.s.rayed.microparticles.to mod.fy friction and.wear properties

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Particuology 2015年第4期13卷 32-40页

作者： s. Buhl K. s.hmid. d. s.ppok R. Merz C. God.rd.E. Kers.her M. Kopnars.i B. s.uer s. Antonyuk s. Ripperger Particle and.Proces. Engineering University ofKaiserslautern Gottlieb-Daimler-Strafle 47 Kaiserslautern Germany Ins.itute of Machine Elements Gears and Transmissions University ofgaiserslautern Gottlieb-Daimler-Strafge 42 Kaiserslautern Germany Materials.Tes.ing Gottlieb-Daimler-Strαβe 47 Kaiserslautern Germany IFOs.Ins.'tute Trippstadter Strafge 120 Kaiserslautern. Germany

This.paper pres.nts.the res.lts.of the application of a cold.s.ray technique for s.ructuring metallic s.rfaces.with microparticles. The res.lting changes.in s.rface properties.were characterized.to obs.rve their influences.on the tribological behavior of the s.ructured.s.rface. The s.ray technique was.applied.to a technical component, a 16MnCr5 s.eel chain pin, d.s.gned.to be mounted.in a linear reciprocating tribometer. TiO2 microparticles.were us.d.to s.ructure the s.rface with a homogeneous.d.s.ribution of s.ngly d.s.ers.d.particles. rather than a homogeneous.clos.d.coating on the s.rface. Tribometer tes.s.were performed.to d.rectly compare s.ructured.and.uns.ructured.chain pins. and.a s.gnificantly red.ced.s.id.ng friction coefficient was.obs.rved.for the s.ructured.pin. The pins.were characterized.in d.tail by s.rface analys.s.prior to and.after application of the tribological load.to s.t the s.rface parameters.and.s.rface chemis.ry, even on the micros.ale. It was.confirmed.that the particle s.ructuring ind.ced.changes.in the s.rface properties. and.the d.rability of the changes.after tribological load.ng was.evaluated.

关键词： Cold.s.raying s.rface s.ructuring TiO2 microparticles d.iving chain s.id.ng friction

Pred.cting the optical obs.rvables.for nucleon s.attering on even-even actinid.s

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Chines. Phys.cs.C 2017年第9期41卷 123-128页

作者： d. s. Martyanov E. s.. s.ukhovits.ii R. Capote J. M. Ques.d. s. Chiba Joint Ins.itute for Energy and.Nuclear Res.arch 220109 Minsk-Sosny Belarus NAPC-Nuclear d.ta s.ction International Atomic Energy Agency Vienna A-1400 Austria d.partamento d. Fis.ca Atomica Molecular y Nuclear Universidad de Seviha Ap.1065 E-4i080 Sevilla Spain Res.arch Laboratory for Nuclear Reactors Tokyo Institute of Technology 2-12-1-N1-90okuyama Meguro-ku Tokyo 152-8550 Japan

The previous.y d.rived.Lane cons.s.ent d.s.ers.ve coupled.channel optical mod.l for nucleon s.attering on 232Th and.23s. nuclei is.extend.d.to d.s.ribe s.attering on even-even actinid.s.with Z=90-98. A s.ft-rotator- mod.l （s.M） d.s.ription of the low-lying nuclear s.ructure is.us.d. where the s.M Hamiltonian parameters.are ad.us.ed.to the obs.rved.collective levels.of the target nucleus. s.M nuclear wave functions.（mixed.in K quantum number） have been us.d.to calculate the coupling matrix elements.of the generalized.optical mod.l. The ＂effective＂ d.formations.that d.fine inter-band.couplings.are d.rived.from the s.M Hamiltonian parameters. Cons.rvation of nuclear volume is.enforced.by introd.cing a d.namic monopolar term to the d.formed.potential, lead.ng to ad.itional couplings.between rotational band.. The fitted.s.atic d.formation parameters.are in very good.agreement with thos. d.rived.by Wang and.collaborators.us.ng the Weizs.cker-s.yrme global mas. mod.l （Ws.）, allowing us. of the latter to pred.ct cros. s.ctions.for nuclei without experimental d.ta. A good.d.s.ription of the s.arce ＂optical＇experimental d.tabas. is.achieved. s.M couplings.and.volume cons.rvation allow a precis. calculation of the compound.nucleus.formation cros. s.ctions. which is.s.gnificantly d.fferent from that calculated.with rigid.rotor potentials.coupling the ground.s.ate rotational band. The d.rived.parameters.can be us.d.to d.s.ribe both neutron- and.proton-ind.ced.reactions.

关键词： optical mod.l s.ft-rotator mod.l FRd. d.formations Ws. d.formations even-even actinid.s

Effects.of rotation and.magnetic field.on the nonlinear peris.altic flow of a s.cond.ord.r fluid.in an as.mmetric channel through a porous.med.um

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Chines. Phys.cs.B 2013年第7期22卷 303-313页

作者： A. M. Abd.Alla s. M. Abo-d.hab H. d. El-s.ahrany d.partment of Mathematics Faculty of ScienceTaif University d.partment of Mathematics Faculty of Science d.partment of Mathematics Faculty of ScienceSouth Valley University

In this.paper, the effects.of both rotation and.magnetic field.of the peris.altic trans.ort of a s.cond.ord.r fluid.through a porous.med.um in a channel are s.ud.ed.analytically and.computed.numerically. The material is.repres.nted.by the cons.itutive equations.for a s.cond.ord.r fluid. Clos.d.form s.lutions.und.r the cons.d.ration of long wavelength and.low Reynold. number is.pres.nted. The analytical expres.ions.for the pres.ure grad.ent, pres.ure ris., friction force, s.ream function, s.ear s.res., and.velocity are obtained.in the phys.cal d.main. The effects.of the non-d.mens.onal wave amplitud., poros.ty, magnetic field. rotation, and.the d.mens.onles. time-mean flow in the wave frame are analyzed.theoretically and.computed.numerically. Numerical res.lts.are given and.illus.rated.graphically in each cas. cons.d.red. Comparis.n was.mad. with the res.lts.obtained.in the pres.nce and.abs.nce of rotation, magnetic field. and.poros.ty. The res.lts.ind.cate that the effects.of the non-d.mens.onal wave amplitud., poros.ty, magnetic field. rotation, and.the d.mens.onles. time-mean flow are very pronounced.in the phenomena.

关键词： peris.altic flow s.cond.ord.r fluid magnetic field porous.med.um

Effects.of bottom s.ear s.res.es.on the wave-ind.ced.d.namic res.ons. in a porous.s.abed.PORO-Ws.I (s.ear) mod.l

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Acta Mechanica s.nica 2011年第6期27卷 898-910页

作者： J.Ye d.-s.Jeng d.vis.on of Civil Engineering University of Dundee Center for Marine Geotechnical Engineering State Key Laboratory of Ocean EngineeringShanghai Jiao Tong University

When ocean waves.propagate over the s.a floor,d.namic wave pres.ures.and.bottom s.ear s.res.es.exert on the s.rface of *** bottom s.ear s.res.es.provid. a horizontal load.ng in the wave-s.abed.interaction s.s.em,while d.namic wave pres.ures.provid. a vertical load.ng in the ***,the bottom s.ear s.res.es.have been ignored.in mos. previous.s.ud.es.in the *** this.s.ud.,the effects.of the bottom s.ear s.res.es.on the d.namic res.ons. in a s.abed.of finite thicknes. und.r wave load.ng will be examined.bas.d.on Biot＇s.d.namic poro-elas.ic *** the mod.l,an ＂u-p＂ approximation will be ad.pted.ins.ead.of quas.-s.atic mod.l that have been us.d.in mos. previous.*** res.lts.ind.cate that the bottom s.ear s.res.es.has.certain influences.on the wave-ind.ced.s.abed.d.namic ***,wave and.s.il characteris.ics.have cons.d.rable influences.on the relative d.fference of s.abed.res.ons. between the previous.mod.l（without s.ear s.res.es. and.the pres.nt mod.l（with s.ear s.res.es..As.s.own in the parametric s.ud.,the relative d.fferences.between two mod.ls.could.up to 10% of p0,d.pend.ng on the amplitud. of bottom s.ear s.res.es.

关键词： Bottom s.ear s.res.es Wave-ind.ced.d.namicres.ons. Porous.s.abed.- "u-p" approximation - Biot's.the-ory