简介：Magnetoplasmonicsensorsareattractivecandidatesforultrasensitivechemicalandbiomedicalsensorapplications.Avarietyofferromagneticmetalthinfilmshavebeenusedformagnetoplasmonicdeviceapplications,yetthedependenceofsensorperformanceontheopticalandmagneto-opticalpropertiesofferromagneticmetalmaterialshasbeenrarelystudied.Inthiswork,wereportthestudyofenhancedmagneto-opticalKerreffect（MOKE）andsensingperformanceinAu∕FexCo1-xbilayermagneto-opticalsurfaceplasmonresonance（MOSPR）transducers.TheopticalconstantsofFexCo1-x（x=0,0.29,0.47,0.65,and1）inasputter-depositedAu∕FexCo1-xdevicearecharacterizedbytheattenuatedtotalinternalreflection（ATR）method.FexCo1-xthinfilmsshowdifferentMOKEsasafunctionofthechemicalconcentration,withthehighesttransverseMOKEsignalobservedinFe0.7Co0.3.Indexsensingperformanceiscloselyrelatedtothematerial’sopticalandmagneto-opticalconstants.BystudyingthesensingperformanceintheparameterspaceoftheAu∕FexCo1-xbilayerthicknesses,thehighestsensitivityisfoundtobe0.385（theoretical）and0.306RIU-1（experimental）intheAu∕Fe0.7Co0.3MOSPRdevices.OurresearchhighlightstheinfluenceoftheopticalpropertiesofferromagneticmaterialtodevicesensitivityinMOSPRtransducers.ThehighsensitivityinAu∕FexCo1-xMOSPRdevicesmakethesestructuresattractivecandidatesforchemicalandbiomedicalsensingapplications.

简介：摘要在某电站运行过程中，DEG201GF制冷剂不足，怀疑泄漏点在电机接线柱。经检查电机接线盒并更换其接线柱，最终充氮打压试验试验结果合格。

简介：AseriesofRbxCs1-xAg4I5(x=0-1)thinfilmsweregrownbyvacuumevaporationonNaCIcrystalsubstratesat350K.Theabsorptionspectraofthesefilmsweremeasuredat80Kinthewavelengthrangefrom240nmto400nm.ItisshownthatsuperionicconductorthinfilmsofquaternarycompoundRb0.5Cs0.5Ag4I5andternarycompoundRbAg415canbeobtainedatx=0.5-0.6andx=0.7-1,respectively.Atx=0.65,thecombinedcompoundfilmofthemixtureof30mol%RbAg4I5and70mol%Rb0.5Cs0.5Ag4I5ispresented.Then,basedonthespectralpositionsoftheA1andA2peaks,wedeterminedthattheRb0.5Cs0.5Ag4I5excitoncouplingenergyRexis0.21eV,theforbiddenzonewidthEgis3.82eVandtheexcitonradiusaexis0.70hm.Furthermore,theionicconductivitiesofsuperionicconductorthinfilmsofRbAg4I5andRb0.5Cs0.5Ag4I5andtheirmixturefilmareinvestigated,respectively,inthetemperaturerange303K-393K.

简介：在这份报纸，我们讨论P的有限体积元素方法[1]-nonconforming为椭圆形的问题的四边的元素并且为一般四边的分区获得最佳的错误估计。一个最佳的cascadicmultigrid算法被建议解决nonsymmetric，大规模系统源于如此的discretization。数字实验被报导支持我们的理论结果。[从作者抽象]

简介：LetGbealocallycompactAbeliangroupwithHaarmeasure.TheauthorsdiscusssomebasicpropertiesofL_(w_1)~r(G)∩L(p,q,w_2dμ)(G)spaces.ThenthenecessaryconditionsforcompactembeddingsofthespacesL_(w_1)~r(R~d)∩L(p,q,w_2dμ)(R~d)areshowed.

简介：Asupramolecular1Dferromagneticsystemwasstudiedexperimentallyaswellastheoretically.Hybriddensityfunctionaltheory(DFT)calculationswerebasedontheX-rayanalysis.TheresultsofDFTcalculationsandMcConnellmechanismhavecontributedtotheunderstandingofthefactorsgoverningtheexchangecouplingofmagnetisminthecrystalpacking.Boththeexperimentalevidenceandtheoreticalcalculationindicatethatspindensityin2-iodonitronylnitroxide(INN)radicalsconfirms1Dferromagneticchainwithinter-chainantiferromagneticinteraction.

简介：Inthispaper,adetailedLiesymmetryanalysisofthe(2+1)-dimensionalcouplednonlinearextensionofthereaction-diffusionequationispresented.Thegeneralfinitetransformationgroupisderivedviaasimpledirectmethod,whichisequivalenttoLiepointsymmetrygroupactually.Similarityreductionandsomeexactsolutionsoftheoriginalequationareobtainedbasedontheoptimalsystemofone-dimensionalsubalgebras.Inaddition,conservationlawsareconstructedbyemployingthenewconservationtheorem.

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简介：Polyolefinsthatbearachiralsidechain(typicallyanisobutylgroup)experienceaso-calledmacromolecularamplificationofchirality:thechiralside-chaininducesaslightpreferenceforeithertgortg-mainchainconformation.Thisslightconformationalbiasisamplifiedcooperativelyalongthechain,andresultsinpreferredchiralityofthemainchainhelicalconformations.Asaresult,thesepolymersdisplayaliquid-crystal(LC)phasebothinsolutionand,inthemeltasatransientphaseonthewaytocrystallization.Theexistenceoftwoprocesses(melt-LCandLC-crystaltransitions)resultsinunconventionalbehaviorsthatwerefirstanalyzedbyPinoandcollaboratorsbackin1975.Thesepolymersalsoofferameanstotestthestructuralconsequencesofrecentlyintroducedcrystallizationschemes.Theseschemespostulatetheformationofatransientliquid-crystalphaseasageneralschemeforpolymercrystallization.

简介：讨论了方程ｘ（ｔ）＝－ｘ＾３（ｔ－１）－ｘ＾３（ｔ－２）周期解的结构。

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简介：Thesynthesisofanewtypeofhetero-macrocyclicpolyether2,3-henzo-1,4,7,13-tetraoxa-10-selenacyclopentadeca-2-eneisdeseribed.

简介：<正>我们通常通过"数形结合"的方法判断过定点的直线与双曲线x2/a2-y2/b2=1能否相切,强调对图形的感知能力。本文拟用严格的代数方法说明定点与双曲线的位置关系对切线条数及切点位置的影响。

简介：Ceria-zirconiasolidsolutionhasbeenpreparedbytheureagrindcombustionandcitricacidsol-gelmethodsforcatalyticapplicationsasoxygenstorage/releasematerialsinthisstudy.Thepropertiesandoxygenstorage/releasecapacitiesofsampleswithdifferentZrcontentswerecharacterizedandevaluatedbyX-raydiffraction（XRD）,N2adsorption,scanningelectronmicroscopy（SEM）,Ramanspectroscopy,andinsituCO–CO2loopingtest.Theresultsdemonstratethatthesamplespreparedbytwomethodsareallofexcellentlattice[O]release/storagepropertiesandmaintaingoodlong-termcyclestability.ButthepreparationmethodsignificantlyimpactsthehomogeneityofsamplesrelatedtotheirredoxpropertiesandthecontentofZrover20%,whichgreatlychangedthepropertiesofceria-zirconiasolidsolutionsandcausedtheirchangingofcrystallinesymmetryfromcubictotetragonal.Thesamplespreparedbycitricacidsolgelmethodareofmorehomogeneousparticlesizesandhigherspecificsurfaceareasthanthatbyureagrindcombustionmethod,whichisbenefittotheoxygenreleaseratherthanoxygenstorage.ThebulkoxygenamountmigratedtosurfaceincreaseswiththeincreasingZrcontent,however,theamountoflatticeoxygenmigrationdecreaseswhenZrcontentisover20%.WhenZrcontentis20%,thedifferencesofstorage/releasecapacitiesfromtwodifferentpreparationmethodsarereducedathightemperatureinthelong-termloopreaction.

简介：Thepresentworkisconcernedwithapenny-shapedDugdalecrackembeddedinaninfinitespaceofone-dimensional(1D)hexagonalquasicrystalsandsubjectedtotwoidenticalaxisymmetrictemperatureloadingsontheupperandlowercracksurfaces.ApplyingDugdalehypothesistothermo-elasticresults,theextentoftheplasticzoneatthecracktipisdetermined.Thenormalstressoutsidetheplasticzoneandcracksurfacedisplacementarederivedintermsofspecialfunctions.Forauniformloadingcase,thecorrespondingresultsarepresentedbysimplifyingtheprecedingresults.Numericalcalculationsarecarriedouttoshowtheinfluenceofsomeparameters.

简介：2,2’-二（1,1’-4-甲基-吡啶）联咪唑（L）、芳香二羧酸与乙酸镉在水热条件下反应得到了配位聚合物[Cd2（L）（p-bdc）2（H2O）2]n（1）和[Cd（L）0.5（m-bdc）]n（2）,并用单晶衍射仪定义了其晶体结构.结构分析表明,配合物1结晶属于正交晶系,Ibca空间群,配合物2结晶属于单斜晶系,C2/c空间群,进一步分析表明,所合成的2个化合物都是有扭曲α-Po拓扑的三维网络结构.在室温条件下,配体L和2个配合物均表现出较好的荧光性质.

简介：标题化合物（C24H16N4S）以噻吩-2-甲醛、苯甲酰乙腈和3-甲基-1-苯基-1H-吡唑-5-胺为原料,在离子液体[bmim]Br溶剂中,在80℃搅拌合成得到.其结构通过单晶X射线衍射法确定,晶体属于三斜晶系,空间群P-1,相对分子质量Mr=392.47,晶胞参数a=0.93612（8）nm,b=1.03063（12）nm,c=1.16624（16）nm,V=0.96853（19）nm3,Z=2,晶胞密度Dc=1.346g/cm3,吸收系数μ=0.185mm-1,单胞中电子的数目F（000）=408.晶体结构用直接法解出,经全矩阵最小二乘法对原子参数进行修正,最终的偏离因子R=0.0585,wR=0.1337.在晶体结构中新形成的吡啶环与吡唑环近似于共平面结构.

简介：在油管射孔管柱下井过程中，当碰到大斜井拐角或套管内凸情况时，经常采用管柱下墩的方式使射孔管柱强行通过障碍。在这一遇阻碰撞冲击过程中可能造成销钉剪断，导致压力起爆器提前引爆。

简介：本文导出了二次多项式保凸的充要条件，通过插值部分新节点，得到了一种新的保凸Ｃ＾１分段二镒多项式插值函数。