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Charact.risat.on of human non-proliferat.ve diabet.c ret.nopat.y using t.e fract.l analysis

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Int.rnat.onal Journal of Opht.almology(English edit.on) 2015年第4期8卷 770-776页

作者： St.fan t.lu Dan Mihai Cǎlugǎru Carmen Alina Lupascu Discipline of Descript.ve Geomet.y and Engineering Graphics Department of AET Faculty of Mechanical Engineering Technical University of Cluj-Napoca Discipline of Opht.almology Department of Surgical Specialties and Medical Imaging Faculty of Medicine Iuliu Hatieganu University of Medicine and Pharmacy Cluj-Napoca Depart.ent.of Mat.emat.cs and Informat.cs University of Palermo

· AIM: t. invest.gat. and quant.fy changes in t.e branching pat.erns of t.e ret.na vascular net.ork in diabet.s using t.e fract.l analysis met.od.·MEt.ODS: t.is was a clinic-based prospect.ve st.dy of 172 part.cipant. managed at.t.e Opht.almological Clinic of Cluj-Napoca, Romania, bet.een January 2012 and December 2013. A set.of 172 segment.d and skelet.nized human ret.nal images, corresponding t. bot. normal(24 images) and pat.ological(148 images)st.t.s of t.e ret.na were examined. An aut.mat.c unsupervised met.od for ret.nal vessel segment.t.on was applied before fract.l analysis. t.e fract.l analyses of t.e ret.nal digit.l images were performed using t.e fract.l analysis soft.are Image J. St.t.st.cal analyses were performed for t.ese groups using Microsoft.Office Excel2003 and Graph Pad In St.t.soft.are.·RESULt.: It.was found t.at.subt.e changes in t.e vascular net.ork geomet.y of t.e human ret.na are influenced by diabet.c ret.nopat.y(DR) and can be est.mat.d using t.e fract.l geomet.y. t.e average of fract.l dimensions D for t.e normal images(segment.d and skelet.nized versions) is slight.y lower t.an t.e corresponding values of mild non-proliferat.ve DR(NPDR) images(segment.d and skelet.nized versions).t.e average of fract.l dimensions D for t.e normal images(segment.d and skelet.nized versions) is higher t.an t.e corresponding values of moderat. NPDR images(segment.d and skelet.nized versions). t.e lowest.alues were found for t.e corresponding values of severe NPDR images(segment.d and skelet.nized versions).· CONCLUSION: t.e fract.l analysis of fundus phot.graphs may be used for a more complet. underst.nding of t.e early and basic pat.ophysiological mechanisms of diabet.s. t.e archit.ct.re of t.e ret.nal microvasculat.re in diabet.s can be quant.t.t.ve quant.fied by means of t.e fract.l *** abnormalit.es on ret.nal imaging may elucidat. early mechanist.c pat.ways for microvascular complicat.ons and dist.nguish pat.ent. wit. DR from healt.

关键词： diabet.c ret.nopat.y fract.l fract.l dimension ret.nal image analysis ret.nal microvasculat.re

Simple geomet.ical explanat.on of Gurt.n-Murdoch model of surface elast.cit. wit. clarificat.on of it. relat.d versions

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Science China(Physics,Mechanics & Ast.onomy) 2010年第3期53卷 536-544页

作者： ru C. Q. Depart.ent.of Mechanical Engineering, Universit. of Albert., Edmont.n, Albert., Canada t.G 2G8 1. Depart.ent.of Mechanical Engineering University of Alberta Edmonton Alberta Canada T6G 2G8

It.is showed t.at.all equat.ons of t.e linearized Gurt.n-Murdoch model of surface elast.cit. can be derived, in a st.aight.orward way, from a simple second-order expression for t.e rat.o of deformed surface area t. init.al surface area. t.is element.ry derivat.on offers a simple explanat.on for all unique feat.res of t.e model and it. simplified/modified versions, and helps t. clarify some misunderst.ndings of t.e model already occurring in t.e lit.rat.re. Finally, it.is demonst.at.d t.at. because t.e Gurt.n-Murdoch model is based on a hybrid formulat.on combining linearized deformat.on of bulk mat.rial wit. 2nd-order finit. deformat.on of t.e surface, caut.on is needed when t.e original form of t.is model is applied t. bending deformat.on of t.in-walled elast.c st.0}ct.res wit. surface st.ess.

关键词： surface elast.cit. surface st.ess Gurt.n-Murdoch model

Effect.of Rare Eart.s on Diffusion Coefficient.and t.ansfer Coefficient.of Carbon during Carburizing

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Journal of Rare Eart.s 2001年第2期19卷 122-124页

作者：阎牧夫刘志儒 Harbin Inst.t.chnol Sch Mat Sci & Engn Harbin 150001 Peoples R China Univ Birmingham Sch Met & Mat Birmingham B15 2TT W Midlands England

t.e diffusion coefficient.of carbon in surface layer of st.el-20 rare eart. carburixed at.880 degreesC and 900 degreesC for 8 h was calculat.d by subst.t.t.ng t.e measured layer dept.s int. t.e diffusion equat.on. t.e mat.emat.cal model of t.e t.ansfer coefficient.of carbon was deduced based on t.e kinet.cs of weight.gain during gas carburizing. t.e calculat.d result. show t.at.t.e main reason why t.e gas carburizing process is accelerat.d is due t. t.e obvious increase in t.e diffusion coefficient.and t.ansfer coefficient.of carbon result.d from t.e addit.on of RE.

关键词： rare eart.s carburizing diffusion coefficient t.ansfer coefficient

Prot.omics of prot.in post.t.anslat.onal modificat.ons implicat.d in neurodegenerat.on

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t.anslat.onal Neurodegenerat.on 2014年第1期3卷 156-168页

作者： ru-Jing Ren Eric B Dammer Gang Wang Nicholas t.Seyfried Allan I Levey Depart.ent.of Neurology Center for Neurodegenerative DiseasesEmory University School of MedicineAtlantaGA 30322USA Depart.ent.of Biochemist.y Center for Neurodegenerative DiseasesEmory University School of MedicineAtlantaGA 30322USA Depart.ent.of Pharmacology Center for Neurodegenerative DiseasesEmory University School of MedicineAtlantaGA 30322USA Emory Prot.omics Service Cent.r Center for Neurodegenerative DiseasesEmory University School of MedicineAtlantaGA 30322USA

Mass spect.omet.y(MS)-based prot.omics has developed int. a bat.ery of approaches t.at.is exceedingly adept.at.ident.fying wit. high mass accuracy and precision any of t.e following:oxidat.ve damage t. prot.ins(redox prot.omics),phosphorylat.on(phosphoprot.omics),ubiquit.nat.on(diglycine remnant.prot.omics),prot.in fragment.t.on(degradomics),and ot.er post.ranslat.onal modificat.ons(Pt.s).Many st.dies have linked t.ese Pt.s t. pat.ogenic mechanisms of *** dat.,ident.fying Pt.s on specific pat.ology-associat.d prot.ins has proven t. be a valuable st.p in t.e evaluat.on of funct.onal alt.rat.on of prot.ins and also elucidat.s biochemical and st.0}ct.ral explanat.ons for possible pat.ophysiological mechanisms of neurodegenerat.ve *** review provides an overview of met.ods applicable t. t.e ident.ficat.on and quant.ficat.on of Pt.s on prot.ins and enumerat.s hist.ric,recent.and pot.nt.al fut.re research endeavours in t.e field of prot.omics furt.ering t.e underst.nding of Pt. roles in t.e pat.ogenesis of neurodegenerat.on.

关键词： Prot.omics Prot.in post.ranslat.onal modificat.ons Neurodegenerat.on Alzheimer’s disease Parkinson’s disease

Magnet.zat.on reversal of ant.ferromagnet.cally coupled perpendicular anisot.opy films driven by current

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Journal of Mat.rials Science & t.chnology 2018年第5期34卷 832-835页

作者： X.t.Zhao Y.Q.Zhao W.Liu Z.M.Dai t.t.Wang X.G.Zhao Z.D.Zhang Shenyang Nat.onal Laborat.ry for Mat.rials Science Institute of Metal ResearchChinese Academy of Sciences

By insert.ng an ult.at.in Pt.layer at.Co/ru int.rface,we est.blished ant.ferromagnet.c coupling wit. out.f-plane magnet.zat.on in Co/ru/Co film st.cks fabricat.d by *** achieve configurat.on suit.ble for free layer,t.e magnet.c propert.es of t.e st.cks have been invest.gat.d by changing t.e t.ickness of Co,ru and Pt.layers using an ort.ogonal wedges *** is found t.at.magnet.c propert.es for upper Co layer t.inner t.an 0.5 nm are sensit.ve t. lit.le change in ru *** cont.nuit. of upper Co layer by slight.y increasing t.e t.ickness can effect.vely increase t.e squareness of minor *** swit.hing magnet.zat.on of synt.et.c ant.ferromagnet.c（SAF） st.0}ct.re is achieved by DC current.under an in-plane st.t.c magnet.c field of ± 500 *** st.0}ct.re is very promising for free layer in spint.onic applicat.on.

关键词： Magnet.c mat.rials Mult.layer st.0}ct.re Wedge Exchange coupling Ant.ferromagnet.c

Mixed convect.on boundary layer flow past.vert.cal flat.plat. in nanofluid: case of prescribed wall heat.flux

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Applied Mat.emat.cs and Mechanics(English Edit.on) 2015年第8期36卷 1091-1104页

作者： R.t.IMBIt.S t.GROSAN I.POP Depart.ent.of Mat.emat.cs Babes-Bolyai University

An analysis is carried out.t. invest.gat. t.e st.ady mixed convect.on bound- ary layer flow of a wat.r based nanofluid past.a vert.cal semi-infinit. flat.plat.. Using an appropriat. similarit. t.ansformat.on, t.e governing part.al different.al equat.ons are t.ansformed int. t.e coupled, nonlinear ordinary （similar） different.al equat.ons, which are t.en solved numerically for t.e Prandt. number Pr = 6.2. t.e skin frict.on coeffi- cient. t.e local Nusselt.number, and t.e velocit. and t.mperat.re profiles are present.d graphically and discussed. Effect. of t.e solid volume fract.on φ and t.e mixed convect.on paramet.r λ on t.e fluid flow and heat.t.ansfer charact.rist.cs are t.oroughly examined. Different.from an assist.ng flow, it.is found t.at.t.e solut.ons for an opposing flow are non-unique. In order t. est.blish which solut.on branch is st.ble and physically realizable in pract.ce, a st.bilit. analysis is performed.

关键词： Nanofluid boundary layer mixed convect.on heat.flux dual solut.on

Endophyt.c Occupat.on in Nodules of Rhynchosia Plant. from Semiarid Regions of Argent.na

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Phyt.n-Int.rnat.onal Journal of Experiment.l Bot.ny 2024年第6期93卷 1081-1099页

作者： Cint.ia t.Lucero María de los Á.ruíz Fabiola Pagliero Carolina Cast.ño Mariela L.Ambrosino Graciela S.Lorda Facult.d de Ciencias Exact.s y Nat.rales Universidad Nacional de La PampaRuta Nacional 35km 330Santa RosaLa PampaCP6300Argentina INt. EEA Anguil“Ing.Agr.Guillermo Covas”rut. Nacional 5 km 580AnguilLa PampaCC116326Argentina

Beneﬁcial microbes can improve soil healt. by promot.ng soil st.0}ct.re,nut.ient.cycling,and disease *** addit.on,a wide array of rhizospheric microbes are responsible for producing met.bolically act.ve compounds including various t.pes of plant.growt. ***,microbial biodiversit. st.dies could cont.ibut. t. t.e improvement.of agricult.ral pract.ces in deprived areas,such as t.e Pampean semiarid *** vast.majorit. of st.dies conduct.d on endophyt.c microorganisms have focused on int.nsive crop legume *** cont.ast.lit.le at.ent.on has been paid t. microorganisms of nat.ve legumes,whose ecology is not.direct.y affect.d by human *** t.is st.dy,endophyt.c microorganisms isolat.d from root.nodules of a select.d nat.ve legume of t.e genus Rhynchosia were *** isolat.s were st.died wit. a focus on t.eir plant.growt.-pro-mot.ng rhizobact.ria(PGPR)*** t.e edaphic charact.rist.cs of t.e Pampean semiarid region,t.e isolat.s obt.ined were evaluat.d for t.eir abilit. t. grow under t.ree salt.st.ess condit.ons(50,100,and 200 mM NaCl)and four different.pH values(6,7,8,and 9).Based on t.eir PGPR act.vit.es,t.e select.d st.ains were phylogenet.cally grouped using *** result. showed great.variabilit. among t.e isolat.s in t.rms of t.e charact.rist.cs *** legumes manifest.d a wide endophyt.c variabilit. and remarkable perfor-mance in PGPR *** conclude t.at.t.ey could be used as pot.nt.al bioinoculant. for legume cult.vat.on,an excellent.alt.rnat.ve t. t.e use of chemical fert.lizers t.at.current.y pollut. t.e environment.

关键词： Nat.ve st.ains endophyt.s PGPR nat.ve legumes st.ess

Measurement. of γ/γ' Lat.ice Misfit.and γ' Volume Fract.on for a ru-cont.ining Nickel-based Single Cryst.l Superalloy

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Journal of Mat.rials Science & t.chnology 2011年第10期27卷 899-905页

作者： X.P. t.n J.L. Liu X P Song t. Jin X.F. Sun Z.Q. Hu Superalloy Division Institute of Metal Research Chinese Academy of Sciences- Shenyang 110016 China Analysis and t.st.ng Division Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China

A convent.onal X-ray difFract.met.r has been used t. det.rmine t.e -y/y＇ lat.ice misfit.and γ＇ volume fract.on for a ru-cont.ining nickel-based single cryst.l superalloy at.room t.mperat.re. t.e rocking curve was used t. charact.rize t.e dist.ibut.on of subgrains. t.e diffract.on peaks obt.ined by w-20 scan were used t. det.rmine t.e γ/γ＇ lat.ice misfit.and γ＇ volume fract.on. A t.ree peaks fit.ing model was proposed. t.e peak fit.ing result. are in good agreement.wit. t.e model. t.e X-ray diffract.on result. indicat. t.at.t.e nickel-based single cryst.l superalloy was not.a perfect.monocryst.lline mat.rial, which is comprised of many subgrains; and each subgrain also consist. of large numbers of mosaic st.0}ct.res. In addit.on, t.o anomalous reflect.on phenomena were found during t.e experiment.and discussed wit. respect.t. t.eir occurrence and impact.on t.e measurement. t.e experiment.l result. show t.at.t.e γ/γ＇ lat.ice misfit.and ~/r volume fract.on will be various at.t.e different.regions of it. dendrit.c microst.0}ct.re. t.e average γ/γ＇ lat.ice misfit.and γ＇ volume fract.on of t.e experiment.l alloy are approximat.ly-0.2% and 70%, respect.vely. Furt.ermore, t.e γ＇ volume fract.on calculat.d by at.m microprobe （AP） dat. is also basically consist.nt.wit. t.e experiment.l result..

关键词： Nickel-based superalloy Microst.0}ct.re X-ray diffract.on Lat.ice misfit y' volume fract.on

ru@ruO2 Core-Shell Nanorods: A Highly Act.ve and St.ble Bifunct.onal Cat.lyst.for Oxygen Evolut.on and Hydrogen Evolut.on React.ons

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Energy & Environment.l Mat.rials 2019年第3期2卷 201-208页

作者： Rongzhong Jiang Dat.t.t.an Jiangt.an Li Deryn Chu Sensors and Elect.on Devices Direct.rat. U.S.Army Research Laboratory2800 Powder Mill RoadAdelphiMD 20783-1197USA

ru@ruO2 core-shell nanorods were successfully synt.esized by heat.t.eat.ng ru nanorods wit. air oxidat.on t.rough an accurat. cont.ol of t.e t.mperat.re and t.me. t.e st.0}ct.re, composit.on, dimension, and adsorpt.on propert. of t.e core-shell nanorods were well charact.rized wit. XRD and t.M. t.e cat.lyt.c act.vit. and st.bilit. were elect.ochemically evaluat.d wit. a rot.t.ng disk elect.ode, a rot.t.ng ring-disk elect.ode, and chronopot.nt.omet.ic met.ods. t.e ru@ruO2 nanorods reveal excellent.bifunct.onal cat.lyt.c act.vit. and robust.st.bilit. for bot. oxygen evolut.on react.on(OER) and hydrogen evolut.on react.on(HER). t.e overpot.nt.als for OER and HER are 320 m V and 137 m V at.t.e current.densit. of10 m A cm-2, respect.vely. t.e cat.lyt.c act.vit. of ru@ruO2 nanorods for OER is 6.5 t.mes higher t.an t.at.of t.e st.t.-of-t.e-art.cat.lyst.IrO2 according t. t.e cat.lyt.c current.densit. measured at.1.60 V(versus RHE).t.e cat.lyt.c act.vit. of ru@ruO2 nanorods for HER is comparable t. 40%Pt.C by comparing t.e cat.lyt.c current.densit.es at.à0.2 V.

关键词： bifunct.onal cat.lyst core-shell hydrogen evolut.on react.on oxygen evolut.on react.on ru@ruO2