简介：精制系统的一个水平地区的三维的热分析模拟为金者半导体材料被进行。考虑几何学包括充满金者在一个圆柱的石英试管放了的一只石墨船。Ar和H2气体混合的流动通过试管被清除。船的狭窄的节被假定暴露于在石英试管外面定位的rf卷生产的经常的热率。这分析的结果在系统关于象熔融的地区，要求的力量和温度坡度的形状那样的各种各样的参数提供必要信息。

简介：Zn_(1-x)Cu_xOthinfilmsweresynthesizedbytheradiofrequency(RF)magnetronsputteringtechniqueusingaZnOtargetcontainingdifferentpiecesofsmallCu-chips.X-raydiffraction(XRD)andscanningelectronmicroscopy(SEM)wereemployedtoanalyzethecrystallineandmicrostructureofthefihn,andX-rayphotoelectronspectroscopy(XPS)wasusedtoestablishthebondingcharacteristicsandoxidationstatesofcopperinsidetheZnOhost.Roomtemperature(RT)ferromagnetismwasobservedintheZn_(1-x)Cu_xOfilmsbyaQuantumDesignsuperconductingquantmninterferencedevice(SQUID)andthesaturationmagneticmomentofthefilmswasfoundtodecreasewiththeincreaseinCucontent.

简介：AbstractSingle-domain antibodies have the characteristics of small molecular weight, strong tissue penetration, and high affinity, and are widely used to construct molecular probes for disease diagnosis and treatment. This article reviews molecular imaging studies including positron emission tomography (PET), single-photon emission computed tomography/computed tomography (CT), PET/CT, and fluorescent imaging of molecular probes composed of single-domain antibodies against eight esophageal squamous cell carcinoma biological targets. These 8 targets are highly expressed on the membrane of esophageal squamous cell carcinoma cells and include epidermal growth factor receptor, human epidermal growth factor receptor 2, human epidermal growth factor receptor 3, hepatocyte growth factor receptor, vascular endothelial growth factor receptor 2, chemokine receptor 4, chemokine receptor 7, and carcinoembryonic antigen. The current problems and solutions are also discussed to provide a reference for future design of molecular imaging probes targeting esophageal squamous cell carcinoma.

简介：Thehigh-densitypopulationleadstocrowdedcities.Thefuturecityisenvisagedtoencompassalarge-scalenetworkwithdiverseapplicationsandamassivenumberofinterconnectedheterogeneouswireless-enableddevices.Hence,greentechnologyelementsarecrucialtodesignsustainableandfuture-proofnetworkarchitectures.Theyarethesolutionsforspectrumscarcity,highlatency,interference,energyefficiency,andscalabilitythatoccurindenseandheterogeneouswirelessnetworksespeciallyinthehomeareanetwork(HAN).Radio-over-fiber(ROF)isatechnologycandidatetoprovideaglobalviewofHAN’sactivitiesthatcanbeleveragedtoallocateorthogonalchannelcommunicationsforenablingwireless-enabledHANdevicestransmission,withconsideringtheclustered-frequency-reuseapproach.Ourproposednetworkarchitecturedesignismainlyfocusedonenhancingthenetworkthroughputandreducingtheaveragenetworkcommunicationslatencybyproposingadataaggregationunit(DAU).TheperformanceshowsthatwiththeDAU,theaveragenetworkcommunicationslatencyreducessignificantlywhilethenetworkthroughputisenhanced,comparedwiththeexistingROFarchitecturewithouttheDAU.

简介：WeconsidertheSignal-to-InterferenceplusNoiseRatio(SINR)balancingproblemin-volvingjointbeamfomingandpowerallocationintheCognitiveRadio(CR)network,whereintheSingle-InputMulti-OutputMultipleAccessChannels(SIMO-MAC)areassumed.Subjecttotwosetsofconstraints:theinterferencetemperatureconstraintsofPrimaryUsers(PUs)andthepeakpowerconstraintsofCognitiveUsers(CUs),alow-complexityjointbeamformingandpowerallocationalgo-rithmcalledSemi-DecoupledMulti-ConstraintPowerAllocationwithConstraintsPreselection(SDMCPA-CP)forSINRbalancingisproposed.Comparedwiththeexistingalgorithm,theproposedSDMCPA-CPcanreducethenumberofmatrixinversionsandmatrixeigendecompositionssignifi-cantly,especiallywhenlargenumbersofPUsandCUsareactive,whilestillprovidingtheoptimalbalancedSINRlevelforalltheCUs.

简介：Generalpurposeprocesser(GPP)basedsoftware-definedradio(SDR)platformsprovidewirelesscommunicationsystemengineerswithmaximalarchitectureflexibilityandversatilitytoconstructawidebandwirelesscommunicationsystem.Nevertheless,thelackofhardwarereal-timetimingcontrolmakesitdifficulttoachievetimesynchronizationbetweenthebasestationandtheterminals.Inthispaper,asoftware-basedtimesynchronization(STS)methodisproposedtorealizethetimesynchronizationoftimedivisionmultipleaccess(TDMA)basedwirelesscommunicationsystems.Ahighprecisionsoftwareclocksourceisfirstlyconstructedtomeasuretheelapseofprocessingtime.TheRound-TripDelay(RTD)algorithmisthenpresentedtocalculatetimingadvancevaluesandachievetimesynchronization.AnexampleTDMAsystemisimplementedonMicrosoftSoraplatformstoevaluatetheperformance.ExperimentsshowthattheproposedmechanismiseffectivetoenabletimesynchronizationforwidebandwirelesscommunicationsystemsonGPP-basedSDRplatforms.

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简介：在这份报纸，我们在场一三维(3D)在为收音机频率的晶片水平的真空包装技术微机电的系统(RFMEMS)共鸣器，低损失的硅vias在被用来播送RF发信号。Au-Sn焊接结合被采用象电的导体一样提供真空封装。封装帽子的一个RF模型被建立评估包装的寄生效果，它提供3DRFMEMS封装的一个有效设计答案。与建议包装结构，24dB的signal-to-background比率(SBR)被完成，以及共鸣器的优秀因素(Q因素)在包装以后从8000～10400增加。包装共鸣器有线性频率温度(英尺)在在0楨?慰数?之间的一个温度范围特征?牵敶?牡?牰癯摩吗？？

简介：Theroleofpulseparametersonnanoparticlepropertyisinvestigatedself-consistentlybasedonacoupleoffluidmodelandaerosoldynamicsmodelinacapacitivelycoupledparallel-plateacetylene(C2H2)discharge.Inthismodel,themasscontinuityequation,momentumbalanceequation,andenergybalanceequationforneutralgasaretakenintoaccount.Thus,thethermophoreticforceariseswhenagastemperaturegradientexists.Thetypicalresultsofthismodelarepositiveandnegativeiondensities,electronimpactcollisionsrates,nanoparticledensity,andchargedistributions.Thesimulationisperformedfordutyratio0.4/0.7/1.0,aswellaspulsemodulationfrequencyfrom40kHzto2.7MHzforpureC2H2dischargesatapressureof500mTorr.Wefindthatthepulseparameters,especiallythedutyratio,haveagreataffectonthedissociativeattachmentcoefficientandthenegativedensity.Moreimportantly,bydecreasingthedutyratio,nanoparticlesstarttodiffusetothewall.Undertheactionofgasflow,nanoparticledensitypeakiscreatedinfrontofthepulseelectrode,wherethegastemperatureissmaller.

简介：WehavedevelopedaplasmaetchingsimulatortoinvestigatetheevolutionofpatternprofilesinSiO2materialunderdifferentplasmaconditions.Thismodelfocusesonenergyandangulardependentetchingyield(physicalsputteringinthispaper),neutralandionangulardistributions,andreflectionofionsorneutralsonthesurfaceofaphotoresistorSiO2.TheeffectofpositivechargeaccumulationonthesurfaceofinsulatedmaskorSiO2isstudiedandthechargeaccumulationcontributestoadeflectionofiontrajectory.Thewaferprofileevolutionhasbeensimulatedusingacellular-automata-likemethodunderradio-frequency(RF)biasanddirect-current(DC)bias,respectively.Onthebasisofthecriticalroleofangulardistributionofionsorneutrals,thewaferprofileevolutionhasbeensimulatedfordifferentvariancesofangles.Observedmicrotrenchinghasbeenwellreproducedinthesimulator.Theratioofneutralstoionshasbeenconsideredandtheresultshowsthatbecausetheneutralsarenotacceleratedbyanelectricfield,theirenergyismuchlowercomparedwithions,sotheyareeasilyreflectedonthesurfaceofSiO2,whichmakesthetrenchshallower.

简介：SpectrumsensingisoneofthekeytechnologiesinCognitiveRadios(CRs).Previousworksareaccomplishedundersimplechannelmodels,whichmayleadtounreliableresultswhenitappliedtotheover-the-airsystems.Inthispaper,weinvestigatetheperformanceofaMulti-ResolutionSpectrumSensing(MRSS)algorithmundermeasurement-basedchannelmodelsinChina.MRSSisawaveletbasedalgorithmwhichissuitablefornon-stationary,widebandsignalanalysis.Usingstatisticalmod-eling,measurement-basedchannelmodelsarepresentedundertypicalurbanandsuburbanscenariosinShanghai,China.Then,theperformanceoftheMRSSalgorithmisevaluatedunderthemeasure-ment-basedchannelmodels.Simulationresultsshowthat,usingMRSS,theperformanceisalwaysbetterinthescenarioswhereLine-Of-Sight(LOS)pathexist;also,inLOSscenarios,richscatteringeffecthelpstoincreasetheperformance.

简介：为了压制边带，multiband引起直角的频率部门multiplexing(MB-OFDM)的干扰基于认知收音机系统，边带信号的一个数学表达式被导出。基于这表情，在播送符号之中的限制，帮助压制干扰，被获得。与限制结合了，块涡轮代码调整计划的一种类型被建议。在调整计划，边带干扰快速被稀释。与另外的技术相比，在这个计划，干扰抑制更容易并且足够地被实现。同时，小点错误率(BER)表演能被改进。理论分析和模拟结果证明MB-OFDM-based认知收音机系统受不了瑞利褪色是高度适用的。

简介：Thefinite-dmerencetime-domam（FDTD）methodisproposedforanalyzingthesurfaceacousticwave（SAW）propagationintwo-dimensional（2D）piezoelectricphononiccrystals（PCs）atradiofrequency（RF）,andalsoexperimentsareestabhshedtodemonstrateitsanalysisresultofthePCs’bandgaps.TheFDTDmethodtakesthepiezoelectriceffectofPCsintoaccount,inwhichperiodicboundaryconditionsareusedtodecreasememory/timeconsumptionandtheperfectlymatchedlayerboundaryconditionsareadoptedastheSAWabsorberstoattenuateartificialreflections.TwoSAWdelaylinesareestabhshedwith/withoutpiezoelectricPCslocatedbetweeninterdigitaltransducers.Byremovingseveralechoeswithwindowgatingfunctionintimedomain,delaylinestransmissionfunctionisachieved.ThePCs’transmissionfunctionsandbandgapsareobtainedbycomparingtheminthesetwodelaylines.WhenAluminum/128°YX-LiNbO3isadoptedasscatterandsubstratematerial,thePCs’bandgapiscalculatedbythisFDTDmethodandCOMSOLrespectively.ResultsshowthatcomputationalresultsofFDTDagreewellwithexperimentalresultsandarebetterthanthatofCOMSOL.

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简介：BackgroundTheearlyendothelialdysfunctionofcarotidarteryinpatientswithtype2diabetesmellitus(T2DM)hasbeenrecognized.However,thefeasibilityandsignificanceofcarotidarteryendothelialdysfunctiondetectedbyultrasoundradio-frequencytechnologyhasbeenseldomstudied.MethodsThe2Dultrasoundimagesofthebilateralcommoncarotidarteriesfrom112casesofT2DMpatientsand50casesofnormalsubjectsinourhospitalwerecollectedtomeasureintima-mediathicknessmeans(IMTm),end-systolicinnerdiameter(Ds),end-diastolicinnerdiameter(Dd),resistanceindex(RI),pulseindex(PI),andthesystole/diastoleratio(S/D).Wealsoobservedthevariationoftheintima-mediathickness(IMT)aswellastheelasticityindexesofthecommoncarotidartery,suchasthecompliancecoefficient(CC),elasticitycoefficient(β),pulsewavevelocity(PWV)andaugmentationindex(AIx)throughinstrumentswithbuilt-inultrasoundradio-frequencytechniques,includingquantitativeintima-mediathickness(QIMT)andquantitativeanalysisofarterialstiffness(QAS).Thedifferencesoftheabove-mentionedparametersbetweenthetwogroupswereanalyzed.ResultsTherewerenostatisticallysignificantdifferencesinIMTm,Ds,Dd,RI,PIandS/DraitoofthecommoncarotidarteriesbetweengroupT2DMandthenormalgroup(P>0.01).Theβ,PWVandAIxingroupT2DMwereremarkablyhigherthanthoseinthecontrolgroup,withCCvaluebeingsignificantlylowerthanthelater(P<0.01or0.05).ConclusionUltrasoundradio-frequencytechniqueoffersearlierandmoreeffectiveevaluationofcarotidarteryendothelialdysfunctioninT2DMpatientswhencomparedwithconventional2Dultrasound,establishingimagingfoundationfortheearlypreventionandtreatmentofcardio-cerebrovascularcomplicationsinT2DMpatients.

简介：摘要：批评语篇分析主要研究语言运用、意识形态和权势三者的关系。本文运用批评性语篇分析方法，从分类、及物性和情态三个角度对比分析两则来自美国国家电视台(NPR)和世界经济论坛(WEF)、关于俄乌冲突导致的影响的新闻，揭示不同报道者对同一事件所持有的观点态度，以及揭示新闻语篇与意识形态间两者关系。

简介：〔摘要〕：课程思政作为一种教学观，也是课程观，以跨学科融合的思维进行教学，形成学科课程与思政元素同向同行的育人格局，从而提升课程的育人效果。英语学科是一门人文性和工具性融合的学科，同时英语课堂肩负着发展学生语言能力的责任，教师应把课程思政理念贯穿到日常教学的全过程。