简介：Icecoreδ18OrecordefromtheNo.aglacierattheheadoftheUrumqiRiverwereusedocharacterizetherelationshipbetweenδ18Oandcontemporaneoussurfaceairtemperature(Ta)nearbytheDaxigouMeteorologicalStation(3539mabovesealevel,-2kmawayfromtheicecoredrillingsite),Althoughtheicecorerecordsofannuallyaveragedδ18Oarepositivelycorrelatedwithconemporaneoussurfaceairtemperature,especiallysummerairtemperature,thecorrelationislesssignificantthanthatfortheprecipitationsamplesduetodepositionalandpost-depositionalmodificationprocesses,However,theClimatologicalsignificanceoftheicecorδ18Orecordscanbestillpreservedtoacertaindegree,whichmoghtextendtheapplicationofhighaltitudeandsub-tropicalicecoreδ18Orecordstopaleoclimatereconstruction.

简介：Mechanicalpropertiesofepoxyresinwereinvestigatedbyaddingcore-shellelasticparticles(CSEP).Theresultsindicatedthatoptimizedcore-shellratiowas60/40andtheloadingvolumeofCSEPwas10phr(perhundredpartsofepoxyresinbyweight).Theimpactstrengthofmodifiedsystemsincreasedapparentlywiththedecreaseofcoresizes.However,theshearingstrengthchangedgentlywiththeparticlesizes.CSEPwithlightlycrosslinkedrubberycoreshowedmoreeffectivenessontoughnessthanothers.Withsolutionblending,CSEPcouldbedispersedinepoxymatrixwell,andthemorphologiesofdispersedrubberdomainswerecontrolledperfectlybyCSEPwhosestructurewaspredesigned.Acavitation-shearingbandtoughnessmechanismwasobservedfromtheSEMmicrographsoffracturesurface.Italsowasfoundthatthedeformingtemperature(DT)ofmodifiedepoxydidnotdeclineapparently.

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简介：Weperformmicromagneticsimulationsontheswitchingofmagneticvortexcorebyusingspin-polarizedcurrentsthroughathree-nanocontactgeometry.Oursimulationresultsshowthatthecurrentcombinationwithanappropriatecurrentflowdirectiondestroysthesymmetryofthetotaleffectiveenergyofthesystemsothatthevortexcorecanbeeasiertoexcite,resultinginlesscriticalcurrentdensityandafasterswitchingprocess.Besidesitsfundamentalsignificance,ourfindingsprovideanadditionalroutetoincorporatingmagneticvortexphenomenaintodatastoragedevices.

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简介：上期讲到,小雄他们穿过暗道来到了一个大厅,大厅里的景象让众人目瞪口呆!这时,一向不讨人喜欢的西单不知被什么东西叮了一下,便神色恍惚地离开了众人……

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简介：长期以来人们都视爱因斯坦为天才。他是理论物理学家、哲学家、作家，也许可说是迄今最有影响的科学家。爱因斯坦对科学界做出了巨大贡献，其中包括相对论、相对论宇宙学、对引力造成的光偏移的预测、固体中原子运动的量子论和零点能概念，同时还提出了单原子气体量子论，该理论预测了玻色-爱因斯坦凝聚。

简介：<正>第十名:《合金装备》冷静面对一切问题这是一款相当特殊的游戏。早在90年代初,最早的《合金装备》便以开创潜入式游戏模式和过场动画与游戏剧情的完美配合而使得它备受瞩目。其主要制作人小岛秀夫也因此获得了游戏界的最高荣誉奖项,和著名的大师席德梅尔齐名于整个游戏界。

简介：全世界的钟表广告．不分地域不分种族．大部分的钟表都指在一个时间上：10点10分。钟表之所以指在这个时间上。据说是经过西方许多的心理学家、钟表行家共同研究出来的。

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简介：Inthepresentwork,core-shellNi@SiO2catalystswereinvestigatedinordertoevaluatetherelevanceofcatalyticactivityandsurfacestatesofNicoreaswellasNinanoparticlessizetocatalyticpartialoxidationofmethane(POM).ThecatalystswerecharacterizedbyN2adsorption,H2-TPR,XRD,TEMandXPStechniques.Thecatalyticperformanceofthecore-shellcatalystswasfoundtobedependentonthesurfacestatesofcatalyst,whichinfluencedtheformationofproducts.Itwasconsideredthatcarbondioxideformedontheoxidizednickelsites(NiO)andcarbonmonoxideproducedonthereducedsites(Ni).ThesurfacestatesofactivemetalinthedynamicwereinfluencedbothbythesizeofNicoreandtheporosityofsilicashell.However,thecatalyticactivitywouldbedebasedwhenthesizeofNicorewasunderacertainextent,whichcanbeascribedtothefactthecarbondepositionincreasedwiththeincreasingcontentofNiO.TheeffectsofsurfacestatesofNi@SiO2catalystonthecatalyticperformancewerediscussedandthereactionpathwayoverNicoreencapsulatedinsidesilicashellwasproposed.

简介：Inthispaper,wedemonstratetheacetylehe(C2H2)sensorwithhighsensitivityusingahollow-corephotonicbandgapfiber(HC-PCF).ExperimentsformeasuringC2H2concentrationsingasmixtureareperformed.Usinga2m-longHC-PCFasgascell,thespectrumofacetyleneatn1+n3bandhasbeenmeasured,andtheP11-branchhasbeenselectedforthepurposeofsensing.Aminimumdetectivityof143partspermillionbyvolume(ppmv)forthesystemconfigurationisestimated.

简介：有核心壳的合成nanoparticles组织的Cross-linked-cyclodextrinpolymer/Fe3O4在carboxymethyl-cyclodextrin的表面上经由生气连接反应被准备(厘米--CD)在-cyclodextrin的修改Fe3O4nanoparticles由把epichlorohydrin用作crosslinking的碱的答案代理人。准备合成nanoparticles的形态学，结构和磁性被传播电子显微镜学(TEM)调查，Fourier变换红外线(FTIR)spectrometry，X光检查衍射(XRD)测量，thermogravimetric分析(TGA)和颤动的样品magnetometry(VSM)分别地。

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简介：polypropylene/ethylene-propylene随机copolymer/ethylene-propylene的一系列第三的混合分割了其微观结构类似于影响聚丙烯共聚物(欧洲电脑生产厂商)的那些的共聚物(HPP/EPR/EbP)被准备以便系统地在微观结构和欧洲电脑生产厂商的结晶化行为上调查作文的效果。主要阶段形态学的观察表明有核心壳结构的驱散的阶段能在某些作文被重建，过多的EPR在第三的混合导致bicontinuous阶段结构。在包括等温、非等温的结晶化经历一样的静止结晶化以后，这些混合样品展出融化行为的特殊作文依赖者，即，融化的点随EPR内容的增加显著地增加直到它在一个批评内容(大约30wt%)拒绝。结晶化行为主要被归功于到不同成核能力。尽管在EPR和HPP部件之间的相容性随EPR的增加变得更坏，由于增加的界面的区域和EbP的减少的集中满足，这被建议，在混合的更高的EPR内容除了明显的bicontinuous的外观便于到异构的成核阶段结构。

简介：一个并不复杂的房屋拆迁安置问题,何以将主人公卷入一场旷日持久的诉讼纷争中?