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简介：Heavyionbeamsaregenerallyrecognizedasoneofpowerfulmutagensinplantbreedingtogeneratenewmutantswithidealorusefulagronomiccharacters[1].12C6+ionbeams(80MeV/u)acceleratedbyHeavyIonResearchFacilityinLanzhou(HIRFL)wereusedtoirradiatewheatsamples,oneofthemajorwheatvarietiesinQinghaiprovince,namedGaoyuan448.Theradiationdosesrangedfrom10to200Gy.Theirradiatedsamples,controls,andanothermajorwheatvarietynamedAbowereplantedinfarmlocatinginLeducountyofQinghaiprovincein2014.

简介：Soilconsolidationwouldinducevariationsofitstransportcoefficientssuchashydraulicconductivityanddiffusioncoefficient.Thispaperpresentsastudyoftheinfluenceofbarrierconsolidationontransportcoefficients,anda3Dtransportmodelbasedonmixturetheoryisproposedfordescribingthelinersthatinvolvecirculardefectsinthegeomembrane.TheelastoplasticALPHAmodelisrevisedbyusingthespatiallymobilizedplane(SMP)criterionforsimulatingthedeformationofthesoils.Then,the3Dmodelcouplingthenonlinearconsolidationandcontaminantadvection-diffusionissolvedusingthefiniteelementsoftwareABAQUS.Theresultsshowthattheimportanceofreducingthedefectsizeinthegeomembraneandthelinerporositytocontrolthecontaminantconcentrationincrease.

简介：Theauthorsproposeanovelmethodfortransportingmulti-viewvideosthataimstokeepthebandwidthrequirementsonbothend-usersandserversaslowaspossible.Themethodisbasedonapplicationlayermulticast,whereeachendpointreceivesonlyaselectednumberofviewsrequiredforrenderingvideofromitscurrentviewpointatanygiventime.Thesetofselectedvideoschangesinrealtimeastheuser'sviewpointchangesbecauseofheadoreyemovements.Techniquesforreducingtheblack-outsduringfastviewpointchangeswereinvestigated.Theperformanceoftheapproachwasstudiedthroughnetworkexperiments.

简介：Anewkindofmonomerswassuccessfullysynthesizedbythereactionbetween2-chloromethylcycloketalandtrimethylsilylcyanide,followedbyringclosureanddehaiogenation.Polymerizationsofthemonomerswerecarriedoutinbenzenesolutionat80℃withbenzoylperoxideasinitiator.BoththestructuresofmonomersandpolymerswerecharacterizedbyIR,1HNMR,13CNMRandelementalanalysis.

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简介：TheIsodynetechniquebasedonthescatteredlightscanningfromathinlaserbeamcanbeusedtoobtaintheinformationinsidetheloadedobjectintheroomtemperaturenondestructively,soitisaverypowerfultechniquein3Dstressanalysis.Theproblemsarehowtointerprettheinformationandhowtogetsufficientinformationfromthefewinterferencefringe.Birefringencephaseshifttechniquecandistinguishthefringeordersautomaticallyandenrichtheinformationin256graylevelsbetweenmaximandminimlightintensity.InthepapertheIsodynebirefringencephaseshiftmethodwithanobliqueincidenceandequilibriumequationispresented,bywhichthe3DstressesinthemiddleplaneofaplatewithUshapenotchareseparatedsuccessfully.

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简介：Lattice,magneticandorbitalstructuresinKCuF3areself-consistentlydeterminedbyourclusterself-consistentfieldapproachbasedonaspin-orbital-latticeHamiltonian.Twostablestructuresareobtainedandfoundtobedegenerate,whichconfirmsthepresenceofthecoexistentphasesobservedexperimentally.Weclearlyshowthatduetotheinherentfrustration,thegroundstateofthesystemonlywiththesuperexchangeinteractionisdegenerate;whiletheJahn-Tellerdistortion,especiallytheanharmoniceffect,stabilizestheorbitalorderedphaseatabout23%inthex2-y2orbitandat77%inthe3z2-r2orbit.MeanwhilethemagneticmomentofCuisconsiderablyreducedto0.56μB,andmagneticcouplingstrengthsarehighlyanisotropic,Jz/Jxy≈18.Theseresultsareingoodagreementwiththeexperiments,implyingthattheanharmonicJahn-TellereffectplaysanessentialroleinstabilisingtheorbitalorderedgroundstateofKCuF3.

简介：AmicrocalorimetricmethodwasusedtoevaluatetheactionofYb^3+ionsonthegrowthmetabolismofStaphylococcusaureus.Thepower-timecurvesofthegrowthmetabolismofStaphylo.coccusaureusandtheactionofYb^3+ionswereobtainedbyus-ingstopped-flowmethodat37℃.Forevaluationoftheaction,thegrowthrateconstants(k1andk2)forthelogphase1,logphase2,andthetotalheateffect(Qtotal)forStaphylococcusaureusweredetermined.TheresultsshowthatYb^3+ionsatlowconcentrationshavethestimnlatoryeffectonStaphylococcusau-reusandthatYb^3+ionsathigherconcentrationcouldinhibititsgrowth.

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简介：指出GL(3,2)的两个不共轭的{2,3}-Hall子群都和S_4同构.由此,进一步给出两个不同构的S_4-模提供相同2-Brauer特征标的例子.

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简介：在这篇论文，3-D上的热方程的数字答案无界的空间领域被考虑。人工的边界Γ被介绍给有限计算领域。在人工的边界Γ上，准确边界条件和一系列接近的边界条件被导出，它被称为人工的边界条件。由人工的边界上的准确或接近的边界条件，原来的问题在围住的计算领域上被归结为aninitial边界价值问题，它等价于原来的问题或接近。有限差别方法和有限元素方法被用来在有限计算领域上解决减少的问题。数字结果证明在这篇论文给的方法有效、可行。

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简介：Basedonthegeneralconservationlawsincontinuummechanics,theEulerianandLagrangiandescriptionsofthejumpconditionsofshockwavesin3-dimensionalsolidswerepresentedrespectively.Theimplicationofthejumpconditionsandtheirrelationsbetweeneachother,particularlytherelationbetweenthemassconservationandthedisplacementcontinuity,werediscussed.Meanwhiletheshockwaveresponsecurvesin3-dimensionalsolids,i.e.theHugoniotcurveswereanalysed,whichprovidethefoundationforstudyingthecouplingeffectsofshockwavesin3-dimensionalsolids.

简介：TheNdCl3/MgCl2bisupportedcatalystwaspreparedbyusingNdCl3,MgCl2,（CH3）2（CH2）2OHandTiCl4.ItisshownthatthestructureofbisupportedcatalystwasdifferentfromthoseofeitherNdCl3orMgCl2singlesupportedcatalyst.Apeculiartypeofkineticcurveforethylenepolymerizationwasfound.