简介：阐明physisorbed的效果几何学和hydrogenated钻石电影的电子结构上的活跃离子，HCO3-的模型，H3O+,并且哦hydrogenated钻石(100)上的离子physisorbed出现被构造。密度功能的理论被用来计算状态的几何学，吸附精力，和部分密度。结果证明表面都在离子吸附以后改变了到不同的度的hydrogenated钻石(100)的几何学。在他们之中，H3影响的O+离子hydrogenated钻石(100)的几何学出现大多数。这与计算吸附精力的结果很好一致，它显示一个强壮的静电的吸引力发生在hydrogenated钻石(100)之间表面和H3O+离子。另外，电子从hydrogenated钻石(100)显著地转表面到吸附的H3O+离子，它导致一向下变在H3O+离子。然而，为活跃离子喜欢哦和HCO3-，没有戏剧的变化为吸附的离子的电子结构出现。

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简介：Recently,theirradiationeffectsinnanomaterialshavebeenahottopicinnanoscience.Althoughirradiationinduceddamageshavebeenstudyingforalongtime,verylimitedresearchhasbeenperformedonthedamagesinducedbyMeV-energyheavyionsingoldnanowires(NWs).Inthiswork,wereportastudyoftheirradiationeffectsonsinglecrystallinegoldNWs,whicharefabricatedelectrochemicallyintheetchediontracktemplates.Theas-preparedgoldNWsontheAu/CusubstratewerecharacterizedbySEMafterdissolvingthepolycarbonate(PC)template,asshowninFig.1(a).GoldNWswithdiametersfrom20to90nmwerefabricatedtostudythesizedependenceofirradiationdamageinducedbytheheavyions.ToguaranteethatthedifferentNWscouldobtainthesameirradiationfluence,theNWswithdifferentdiametersweremixedtogetherandtransferredtotheTEMgrid,asshowninFig.1(b).

简介：Inordertosolvethemagneto-hydrodyna-mics(MHD)problems,itisneccessarytocombineMaxwell'sequationswithfluidmechanicsequations.But,underthefirstorderapproximationthemasspointmotivationequationsandelectromagneticbasiclawsare

简介：AhighsensitivityD-shapedholedouble-claddingfibertemperaturesensorbasedonsurfaceplasmonresonance（SPR）isdesignedandinvestigatedbyafull-vectorfiniteelementmethod.WithintheD-shapedholedoublecladdingfiber,thehollowD-sectioniscoatedwithgoldfilmandtheninjectedinahighthermo-opticcoefficientliquidtorealizethehightemperaturesensitivityforthefiberSPRtemperaturesensor.ThenumericalsimulationresultsshowthatthepeakinglossoftheD-shapedholedouble-claddingfiberSPRishugelyinfluencedbythedistancebetweentheD-shapedholeandfibercoreandbythethicknessofthegoldfilm,butthetemperaturesensitivityisalmostinsensitivetotheaboveparameters.Whenthethermo-opticcoefficientis-2.8×10-4∕℃,thethicknessofthegoldfilmis47nm,andthedistancebetweentheD-shapedholeandfibercoreis5μm,thetemperaturesensitivityoftheD-shapedholefiberSPRsensorcanreachto-3.635nm∕℃.

简介：Experimentalresultsonthethermalcharacteristicsofair-watersprayimpingementcoolingofhotmetallicsurfacearepresentedanddiscussedinthispaper.Thecontrollinginputparametersinvestigatedwerethecombinedairandwaterpressures,platethickness,waterflowrate,nozzleheightfromthetargetsurfaceandinitialtemperatureofthehotsurface.Theeffectsoftheseinputparametersontheimportantthermalcharacteristicssuchasheattransferrate,heattransfercoefficientandwettingfrontmovementweremeasuredandexamined.Hotflatplatesamplesofmildsteelwithdimension120mminlength,120mmbreadthandthicknessof4mm,6mm,and8mmrespectivelyweretested.Theairassistedwaterspraywasfoundtobeaneffectivecoolingmediaandmethodtoachieveveryhighheattransferratefromthesurface.Higherheattransferrateandheattransfercoefficientswereobtainedforthelesseri.e,4mmthickplates.Increaseinthenozzleheightreducedtheheattransferefficiencyofspraycooling.Ataninletwaterpressureof4barandairpressureof3bar,maximumcoolingrates670℃/sandaveragecoolingrateof305.23℃/swereachievedforatemperatureof850℃ofthesteelplate.

简介：Inthiswork,themorphologiesandporestructuresofaseriesofcorncob-derivedactivatedcarbonsandzeolitetemplatedcarbonwithultrahighsurfaceareawerecarefullyinvestigatedbySEM,HRTEMandN2-sorptioncharacterizationtechnologies.Thehigh-pressurehydrogenuptakeperformancewasanalyzedusingstandardPressure-Composition-Temperatureapparatusinordertostudytheporesizeeffectsonhydrogenuptake.Theseas-obtainedporouscarbonsshoweddifferentcharacteristicsofporesizedistributionaswellasspecificsurfacearea.Theresultsindicatethatthemosteffectiveporesforadsorbinghydrogendependedonthestoragepressure.Theseultramicropores(0.65-0.85nm)couldbethemosteffectiveporesonexcessH2uptakeat1bar,however,micropores(0.85-2nm)wouldplayamoreimportantroleinexcessH2uptakeathigherpressureat77K.Atroomtemperature,poresizeeffectsonH2uptakecapacitywereveryweak.BothspecificsurfaceareaandtotalporevolumeplaymoreimportantrolesthanporesizeforH2uptakeatroomtemperature,whichwasclearlydifferentfromthatat77K.Forapplicationsinfuture,thecorncob-derivedactivatedcarbonscanbemoreavailablethanzeolitetemplatedcarbonsat77K.ElementdopingenhancedhydrogenuptakecouldbemainresearchdirectionforimprovingH2uptakecapacityatroomtemperature.更多还原

简介：一个多客观的表演优化方法被建议，并且小扇子的单个结构的参数平衡的问题在静态的特征之间的优化和空气动力学的噪音被解决。在这个方法，三个结构的参数作为优化变量被选择。而且，静态的压力效率和扇子的空气动力学的噪音被认为是多客观的表演。而且，反应表面方法和熵方法被用来建立在优化变量和多客观的表演之间的优化函数。最后，当优化功能到达它的最大的价值时，优化模型被发现。试验性的数据表演优化模型不仅提高扇子的静态的特征而且显然减少噪音。学习的结果将为旋转机械的另外的类型的多客观的性能的优化提供一些引用。

简介：基于非破坏性的检查的实际状况，合成散布的计算模型被使用三维的一半空间建立有限差别时间领域，和蒙特卡罗方法被用来在建议计划与粗糙解决光表面的问题。而且，缺点粒子为一种更复杂的状况作为周期的粒子被观察。以便在光表面内获得缺点的散布贡献，差别雷达十字节被增加进模型在数字，分离距离，不同深度和缺点的不同材料的效果上分析选择计算。不同事件角度的效果也被讨论。数字结果详细被分析表明最好的位置由为事件角度在固定的度的步检测在光表面发现缺点。

简介：Inlostpaperofmagneto-hydrodynamicinstabilityanalysisofliquidmetalfreesurfacejetflow(PartⅠ),themagneto-hydrodynamicinstabilitywasanalyzedforthejetflowinatransversenon-uniformmagneticfield,BT.But,asallknown,fortherealconditionsofliquidmetallimiter-divertorplasma-facingcomponentsareintoroidalandpoloidalfields.So,wetrytoanalyzethemagneto-hydrodynamicinstabilityofthejetflow(herebyonlyforcircularshapecrosssectionjetflow)inthezoneofnon-uniformmagneticfields,

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简介：Strongnonlinear,electro-optical,andthermo-opticalpropertiesoflithiumniobate（LN）havegainedmuchattention.However,theimplementationofLiNbO3inrealdevicesisnotatrivialtaskduetodifficultiesinmanufacturingandhandlingthin-filmLN.Inthisstudy,weinvestigateanopticaldevicewheretheBlochsurfacewave（BSW）propagatesonthethin-filmLNtounlockitsproperties.First,accesstotheLNfilmfromair（oropenspace）isimportanttoexploititsproperties.Second,forsustainingtheBSW,one-dimensionalphotoniccrystal（1DPhC）isnecessarytobefabricatedunderthethin-filmLN.Weconsidertwomaterialplatformstorealizesuchadevice:bulkLNandcommercialthin-filmLN.Clearreflectancedipsobservedinfar-fieldmeasurementsdemonstratethepropagationofBSWsontopoftheLNsurfaceofthedesigned1DPhCs.

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简介：最近，当半导体仪器变得更复杂，高技术的开发在生产半导体的进程为薄一致电影的形成被要求了。旋转涂层通常被使用在晶片表面上散布光致抗蚀剂。然而，自从旋转，磁盘的速度在旋转涂层很高，扔的光致抗蚀剂向外散布并且在电影表面上重新依附。钩子杯在纺纱在晶片外面被建立涂层，和散布光致抗蚀剂薄雾被在在晶片边和钩子杯之间的差距产生的exhaust流动从晶片边移开。在旋转涂层的干燥过程，是一颗严肃的担心在低旋转的情况中的晶片边附近的电影厚度增加加速。这研究的目的是在晶片表面和液膜的弄干的率上在3D界面层流动上弄明白钩子杯几何学的效果。

简介：Chirped-pitchnanoscalecircularsurface-reliefdiffractiongratingswerephotoinscribedonthinfilmsofaDisperseRed1functionalizedmaterialusingaholographictechnique.Atruncatedconicalmirrorsplitsandredirectsaconvergingordiverginglaserbeam,resultinginaninterferencepatternofconcentriccircleswithachirpedpitchthatcanbecontrolledbyvaryingthewavefrontcurvature.Theresultingcirculargratingshaveadiameterof12mmandhavetheadvantageofbeingproducedinafast,single-stepprocedurewithnorequirementforamastergrating,photomask,ormillingequipment.

简介：Hightimeresolutionmeasurementsoftheelectrostaticfluctuations,radialelectricfieldErandturbulence-inducedelectronfluxΓehavebeenperformedacrossthetransitionoflowerhybridcurrentdriveimprovedconfinementwithagraphiteLangmuirprobearrayatthelastclosedfluxsurfaceoftheHT-7tokamak.ThedecreaseofΓeisdominatedbythesuppressionoffluctuationlevels,whichfollowsthechangeofEr.AreversalofthepoloidalpropagationdirectionofturbulencedemonstratesthatthepoloidalpropagationisdominatedbyEr×Bφdrift.Theenhancementofpoloidalcoherenceaccompaniesthefluctuationsuppression,whichsuggeststhesubtlevariationofturbulencefeatures.

简介：我们在场薄绝缘的核心层的接口上的波浪繁殖利用表面电浆子电磁声子(SPP)在二之间夹了的兆兆赫(THz)的全面试验性的研究弄皱金属性的claddings。THz波浪在正常发生在结构化的表面上侵犯。长持续的摆动繁殖特征在通过周期的数组旅行以后在时间的波形被观察。提高的THz传播能由于在事件之间联合被完成在底部和最高的接口向SPP招手。有限元素方法被用来在波导模仿地分发和传播模式。有低吸收的混合波导在THz综合设备有大潜在的应用。