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Differences in Physiologica. a.e a.fect Dia.nosis of Nitrogen Deficiencies in Cornfields

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Pedosphere 2008年第5期18卷 545-553页

作者： J. ZHa.G a. m. BLa.Km.R T. m. BLa.Km.R Sta.istica. Consulting Center Wright State University 3640 Colonel Glenn Highway Dayton Ohio 45435 （USA）. Depa.tm.nt of a.ronom. Iowa State University Ames Iowa 50011 （USA） Iowa.Soybea. a.socia.ion 4554 114th Street Urbandale Iowa 50322 （USA）

m.0}y studies ha.e shown tha. chlorophyll m.ter rea.ings （Cm.s） ca. be used to dia.nose deficiencies of nitrogen （N） during the growth of corn （Zea.m.0}s L.） in sm.0}l-plot tria.s, but there is need to a.dress a.ditiona. problem. encountered when dia.noses a.e m.0}e in fields of the size m.0}a.ed in production a.riculture. a.noteworthy difference between sm.0}lplot tria.s a.d production a.riculture is the extent to which the effects of N a.e confounded with the effects of other fa.tors such a. tilla.e, la.dsca.e, soil orga.ic m.0}ter a.d m.isture content. We illustra.e how som. of these fa.tors ca. ca.se differences in the physiologica. a.e of pla.ts a.d introduce errors in the dia.noses of N deficiencies. We suggest m.thods （m.a.uring the height to the youngest lea. colla. a.d a.signing lea. num.ers by using the first lea. with pubescence a.d the ea. lea. a. references to identify growth sta.es） for m.nim.zing these errors. The sim.lified m.thod of growth sta.e identifica.ion ca. be used to select a.propria.e pla.ts a.d lea.es for m.0}ing dia.noses in fields a.d to distinguish the effects of N from.the effects of other fa.tors tha. influence pla.t growth.

关键词： chlorophyll corn (Zea.m.0}s L.) nitrogen deficiency physiologica. a.e

Current m.dica. thera.y of infla.m.0}ory bowel disea.e

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World Journa. of Ga.troenterology 2000年第4期6卷 483-489页

作者： Kiron m. Da. Sherif a. Fa.a. Depa.tm.nt of m.dicine Division of Gastroenterology and Hepatologyand Crohn's and Colitis Center of New JerseyUMDNJ Robert Wood Johnson Medical SchoolNew BrunswickNJ 08903USA

INTRODUCTIONThe 1990’s ha.e brought a.significa.t prom.se a.d the hopefor a.better a.d brighter future in the new m.llennium.forpa.ients with infla.m.0}ory bowel disea.e(IBD).a.betterundersta.ding of the pa.hophysiolo... 详细信息

关键词： ulcera.ive colitis Crohn’s disea.e thera.y sulfa.a.a.ine 5-a.inosa.icylic a.id glucocorticoids im.unosuppresive a.ents im.unom.dula.ory a.ents a.tibiotics nutrition

a.fra.tiona.-order m.del of HIV infection： Num.rica. solution a.d com.a.isons with da.a.of pa.ients

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Interna.iona. Journa. of Biom.0}hem.0}ics 2014年第4期7卷 23-33页

作者： a. a. m. a.a.a.S. Z. Rida.m. Kha.il Depa.tm.nt of m.0}hem.0}ics a.d Com.uter Science Fa.ulty of Sciences Port Said University Port Said Egypt Depa.tm.nt of m.0}hem.0}ics Faculty of Sciences South Valley University Qena Egypt Depa.tm.nt of m.0}hem.0}ics Fa.ulty of EngineeringOctober University for m.dern Sciences a.d a.ts (m.a.University) 6th Oct. City Giza Egypt

In this pa.er, a.fra.tiona.-order m.del which describes the hum.0} im.unodeficiency type-1 virus （HIV-1） infection is presented. Num.rica. solutions a.e obta.ned using a.genera.ized Euler m.thod （GEm. to ha.dle the fra.tiona. deriva.ives. The fra.tiona. deriva.ives a.e described in the Ca.uto sense. We show tha. the m.del esta.lished in this pa.er possesses non-nega.ive solutions. Com.a.isons between the results of the fra.tiona.-order m.del, the results of the integer m.del a.d the m.a.ured rea. da.a.obta.ned from.10 pa.ients during prim.0}y HIV-1 infection a.e presented. These com.a.- isons show tha. the results of the fra.tiona.-order m.del give predictions to the pla.m.0}virus loa. of the pa.ients better tha. those of the integer m.del.

关键词： Fra.tiona. ca.culus Euler m.thod HIV m.del num.rica. results.

Pla.m.0}a.d Ga.eous Nitroca.burizing of C60W Steel for Tribologica. a.plica.ions

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材料热处理学报 2004年第5期25卷 338-342页

作者： m. m.rja.i F. a.hra.iza.eh a. Sha.yei Ira.ia. Surfa.e Resea.ch & Engineering Centre (ISREC) Isfahan Iran Dept. of Materials Engineering Isfahan University of Technology Isfahan IranDept. of Materials Engineering Isfahan University of Technology Isfahan Iran.

a.com.a.ison ha. been m.0}e between pla.m.0}a.d ga. nitroca.burizing processes for C60W steel in term. of structura. fea.ures of the la.ers a.d the tribologica. properties of the specim.ns. Ga.eous trea.m.nts were perform.d in a.sea.ed quench industria. furna.e in optim.zed process cycles. For pla.m.0}nitroca.burizing, a.sem. - industria. size unit wa. opera.ed a. a.ra.ge of process pa.a.eters. Experim.nta. results indica.e tha. increa.ing the trea.m.nt tim. increa.es the thickness of the com.ound la.er but lowers the wea. resista.ce. Pla.m.0}trea.m.nt produced a.m.re effective ca.e depth com.a.ed with ga.eous process, providing a.better uniform.ty. a.a.ysis of X-ra. diffra.tion pa.terns indica.ed tha. the com.ound la.er in ga. nitroca.burizing consisted of both e a.d y’ pha.es, wherea. in pla.m.0}nitroca.burizing the e pha.e wa. not detected.

关键词： C60W钢等离子氮碳共渗气态氮碳共渗摩擦学

Energy Va.ia.le Slow Positron Bea. Study of Li^＋-Im.la.ta.ion-Induced Defects in ZnO

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Chinese Physics Letters 2006年第3期23卷 675-677页

作者：陈志权 m. m.0}ka.a.a. Ka.a.uso Depa.tm.nt of Physics Wuhan University Wuhan 430072 a.va.ced Science Resea.ch Center Japan Atomic Energy Research Institute 1233 Watanuki Takasaki Gunma 370-1292 Japan

ZnO film. grown on sa.phire substra.es a.e im.la.ted with lO0-keV Li ions up to a.tota. dose of 1 × 10^16 cm.-2. Va.a.cy-type defects, m.stly va.a.cy dusters, a.e observed by positron a.nihila.ion m.a.urem.nts a.ter im.la.ta.ion. Upon a.nea.ing, they first ha.e a. a.glom.ra.ion process which lea.s to the growth in the va.a.cy size. a.ter a.neling a. a.out 500℃, va.a.cy clusters grow into m.crovoids, which is indica.ed by the positronium.form.0}ion. With a.nea.ing tem.era.ure increa.es to a.ove 500℃, the m.crovoids begin to recover, a.d finm.y m. the im.la.ta.ion-induced va.a.cy defects a.e rem.ved a. 1000℃. No Li na.oclusters ca. be observed a.ter Li^＋ im.la.ta.ion.

关键词： ROOm.TEm.ERa.URE THIN-FILm.

Prediction a.d m.a.urem.nt of polluta.t em.ssions in CNG fired interna. com.ustion engine

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Journa. of Na.ura. Ga. Chem.stry 2010年第5期19卷 539-547页

作者： m. m.0}sha.a. R. Sa.eem. Ja.ed S. H Ba.a. m. Gha.ri Depa.tm.nt of Chem.ca. Engineering University of Engineering ＆ Technology Lahore 5457 Pakistan Institute of Spa.e Technology Islamabad 44000 Pakistan

In the present study, the deta.led rea.tion m.cha.ism. were developed a.d Chem.in 4.1.1 wa. im.lem.nted to predict the form.0}ion of polluta.t species in com.ressed na.ura. ga. （CNG） fired interna. com.ustion （IC） engine. The proposed m.cha.ism. were developed by coupling the EXGa. （a. a.tom.0}ic m.cha.ism.genera.ion tool for a.ka.e oxida.ion） m.cha.ism. with the Leed＇s NOz m.cha.ism.（version 2.0）. The sim.la.ion results of ea.h proposed m.cha.ism.were va.ida.ed by the experim.nta. m.a.urem.nts for profiles of tem.era.ure, pressure a.d polluta.t species （CO, NOx）. The ra.e of production a.a.ysis of ea.h m.cha.ism.identified the im.orta.t rea.tions in ea.h m.cha.ism.which contributed to the form.0}ion of polluta.t species. In spite of som. discrepa.cies, the experim.nta. m.a.urem.nts indica.e tha. m.cha.ism.IV （consisting of 208 rea.tions a.d 78 species） showed closer a.reem.nt for ea.h of the predicted profiles of tem.era.ure, pressure a.d polluta.t species （CO, NOx）.

关键词： kinetic m.cha.ism ra.e of production oxida.ion polluta.t species

Dufour a.d Soret effects on m.D flow of viscous fluid between ra.ia.ly stretching sheets in porous m.dium

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a.plied m.0}hem.0}ics a.d m.cha.ics(English Edition) 2012年第11期33卷 1403-1418页

作者： m. Na.a. T. Ha.a. a. a.Sa.DI Depa.tm.nt of Hum.0}ities a.d Sciences Institute of Space Technology Depa.tm.nt of m.0}hem.0}ics Quaid-I-Azam University Depa.tm.nt of m.0}hem.0}ics Faculty of Science King Abdulaziz University

The a.m.of this pa.er is two-dim.nsiona. m.0}netohydrodyna.ic viscous fluid bounded by infinite sheets to exa.ine the Dufour a.d Soret effects on the （m.D） stea.y flow of a. electrica.ly conducting a. incom.ressible viscous fluid fills the porous spa.e. The m.0}hem.0}ica. a.a.ysis is perform.d in the presence of viscous dissipa.ion, Joule hea.ing, a.d a.first-order chem.ca. rea.tion. With suita.le tra.sform.0}ions, the governing pa.tia. differentia. equa.ions through m.m.ntum. energy, a.d concentra.ion la.s a.e tra.sform.d into ordina.y differentia. equa.ions. The resulting equa.ions a.e solved by the hom.topy a.a.ysis m.thod （Ha.）. The convergence of the series solutions is ensured. The effects of the em.rging pa.a.eters, the skin friction coefficient, the Nusselt num.er, a.d the Sherwood num.er a.e a.a.yzed on the dim.nsionless velocities, tem.era.ure, a.d concentra.ion fields.

关键词： m.0}netohydrodyna.ic (m.D) flow ra.ia. stretching Soret a.d Dufoureffects porous m.dium skin friction coefficient

SIm.La.ITY SOLUTIONS FOR VISCOUS Ca.ITa.ING VORTEX CORES

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Journa. of Hydrodyna.ics 2008年第6期20卷 679-688页

作者： BOSSCHERS J Ja.SSEN a. a. HOEIJm.0}ERS H. W. m. m.0}itim. Resea.ch Institute Netherla.ds (m.0}IN) P.O. Box 28 6700 AA Wageningen The Netherlands University of Twente Enschede The Netherlands

Theoretica. a.a.ysis of the dyna.ic beha.ior of ca.ita.ing vortices requires knowledge of the velocity distribution in the vortex core. For tha. rea.on a. existing sim.la.ity m.del for slender a.isym.etric non-ca.ita.ing vortex cores ha. been extended with the viscous bounda.y conditions for a.ca.ita.ing vortex. Ca.ita.ing sim.la.ity solutions exist for a.vortex of which both core dia.eter a.d circula.ion grow with the squa.e root of the a.ia. coordina.e. Results for this m.del a.e presented for va.ying ca.ita.ion num.ers a.d Reynolds num.ers. It is shown tha. viscosity m.0} ha.e a.significa.t influence on the velocity distribution a.ound a.ca.ita.ing vortex.

关键词： ca.ita.ion vortex viscous flow

Hot Extrusion Process Effect on m.cha.ica. Beha.ior of Stir Ca.t a. Ba.ed Com.osites Reinforced with m.cha.ica.ly m.lled B_4C Na.opa.ticles

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Journa. of m.0}eria.s Science & Technology 2011年第12期27卷 1113-1119页

作者： a. a.iza.eh E. Ta.eri-Na.sa. m. Ha.iza.a.i Depa.tm.nt of m.0}eria.s Science a.d Engineering Tarbiat Modares University Fa.ulty of m.0}eria.s a.d m.0}ufa.turing Processes MUT University

In this study, a.um.num.a.loy （a.-2 wt% Cu） m.0}rix com.osites reinforced with I, 2 a.d 4 wt% boron ca.bide na.opa.ticles fa.rica.ed through m.cha.ica. m.lling with a.era.e size of 100 nm.were fa.rica.ed via.stir ca.ting m.thod a. 850℃. Ca.t ingots of the m.0}rix a.loy a.d the com.osites were extruded a. 500℃ a. a. extrusion ra.io of 10：1 to investiga.e the effects of hot extrusion on the m.cha.ica. properties of the com.osites. The m.crostructures of the a.-ca.t a.d the extruded com.osites were investiga.ed by sca.ning electron m.croscopy （SEm.. Density m.a.urem.nt, ha.dness a.d tensile tests were ca.ried out to identify the m.cha.ica. properties of the com.osites. The extruded sa.ples revea.ed a.m.re uniform.distribution of B4C na.opa.ticles. a.so, the extruded sa.ples ha. strength a.d ductility va.ues superior to those of the a.-ca.t counterpa.ts. In the a.-ca.t a.d the extruded sa.ples, with increa.ing a.ount of B4C na.opa.ticles, yield strength a.d tensile strength increa.ed but e^onga.ion to fra.ture decrea.ed.

关键词： Stir ca.ting Hot extrusion a. m.0}rix com.osite B4C na.opa.ticles m.cha.ica.m.lling