简介：

简介：

简介：

简介：

简介：Indiumtinoxide(ITO)transparentconductingfilmwastreatedwithoxygenplasmaimmersionionimplantation(PIII).X-rayphotoelectronspectroscopy(XPS)wasemployedtocharacterizetheeffect.Theresultssuggestedthattheoxygencontentinthesurfacewasincreasedandmaintainedformorethan50hcomparedwithtraditionalplasma-treatedsamples.Meanwhile,theworkfunctionofITOestimatedbycomparingthepeakshiftintheXPSdiagramsuggestedacorrespondingincreasebymorethan1eV.

简介：

简介：Usingruralsurveydatafortheyear2009,weprovideevidenceofworkchoicesofrurallaborersinecologicallyvulnerableareasinNorthChina,andmodelthesechoicesasafunctionofcharacteristicsofindividuals,households,andlandendowments.Thefindingsreveallargedifferencesbetweenmalesandfemales,andbetweennon-farmemploymentandpart-timefarmingengagementLandscarcityisstillanimportantdrivingfactorinnon-farmingparticipationofrurallaborersinthestudyarea;andinthecurrentcaseoflandproductivityandthetotalamountofland,therearestillsurplusrurallaborforcesinthestudyarea.Diversificationoflivelihoodreducesthepressureonland,thusfacilitatingecosystemconservation.So,thepaperconcludeswiththeargumentthatestablishingcoordinationmechanismsamongnon-farmemploymentofrurallaborers,agriculturalproduction,andrestorationofecosystemsareessentialformitigatingtheconflictsofecologicalsecurity,agriculturalproduction,andruraldevelopmentinmisarea.

简介：

简介：

简介：当前基于身份(标志)cryptosystem缺乏两大政党的认证和用户的私人钥匙的机制分发。一些基于标志的signcryption计划和基于标志的证实的关键协议协议被介绍了，但是他们不能完全解决这个问题。一个新奇基于标志的认证计划基于基于标志的加密(IBE)和指纹哈希方法被建议在IBE计划解决困难，它包括证实发送者的消息接收装置，证实用户并且把私人钥匙传给他们的信任权威(TA)。而且，计划从终端扩大指纹认证的应用程序到网络并且免于指纹数据制造。指纹认证方法由二个因素组成。这个方法联合一个标志例如，给USB钥匙调音，与用户由混合有指纹特征的一个假散乱数字的指纹回锅肉丁。安全和试验性的效率满足实际应用的要求。

简介：

简介：Inthispaper,firstlywedemonstratetheuseofnodaladmittancematrixtoconvertalow-passband-passfilterbasedonoperationalamplifier(op-amp)toacircuitbasedonasecond-generationcurrentconveyor(CCII).Thistechniqueallowsustogeteightpresumptionsoffiltercircuits.Secondly,wepresentanovelarchitecturecircuitofCCII,whichcanoperateatlowsupplyvoltageof±0.75V.AllsimulationsareperformedbyTSPICEmodels.ThesimulationresultsshowthatthiscircuithasalowimpedanceatterminalX(RX=1.01Ω),averyhighinputimpedanceatterminalY,andwidebandwidthcurrentandvoltage.Thecenterfrequencyoftheproposedfilterisvariableontheinterval[157kHz,196MHz].

简介：

简介：Content-basedrouting(CBR)publish/subscribe(P/S)systemisanimportantclassofdistributedsystems.Thissystemdiffersfromclassicalparadigmsasmessagesareroutedbasedontheircontentratherthantheirdestinationaddress,soastoprovideafine-granularityeventdissemination,andsupportmoreflexibilitydecouplingapplications.Covering-basedroutingisatypicaloptimizationmethodofCBRandhasbeenwidelyusedasabuildingblockinmanydistributedP/Ssystems,foritmaintainsacompactroutingtableandreducesthecostsofcommunicationsandmatchingcomputations.Sofarasweknow,thisoptimizationmethodcanonlybeimplementedonacyclicoverlaynetwork,butcannotbedirectlyutilizedoncyclicnetworks.AstheCBRincyclicsystemsbecomesanewfocusofresearch,developingcovering-basedprotocolsandalgorithmsforcyclicP/Ssystemisbecomingsignificantlyimportant.Thispapercontributesthecycliccovering-basedroutingprotocolwithcorrespondingalgorithmstosupportcovering-basedprotocolincyclicP/Ssystem,andimplementsitinPADRES,adistributedeventmanagementinfrastructurebasedonthepublish/subscribemodel.

简介：

简介：Tosimulatetherumorpropagationprocessononlinesocialnetworkduringemergency,anewrumorpropagationmodelwasbuiltbasedonactiveimmunemechanism.Therumorpropagationmechanismswereanalyzedandcorrespondingparametersweredefined.BAscalefreenetworkandNWsmallworldnetworkthatcanbeusedforrepresentingtheonlinesocialnetworkstructurewereconstructedandtheircharacteristicswerecompared.Agent-basedsimulationswereconductedonbothnetworksandresultsshowthatBAscalefreenetworkismoreconductivetospreadingrumorsanditcanfacilitatetherumorrefutationprocessatthesametime.Rumorspaidattentiontobymorepeopleislikelytospreadquickerandbroaderbutforwhichtherumorrefutationprocesswillbemoreeffective.Themodelprovidesausefultoolforunderstandingandpredictingtherumorpropagationprocessononlinesocialnetworkduringemergency,providingusefulinstructionsforrumorpropagationintervention.

简介：

简介：一、教学背景1．教学内容（1）词汇：will，skip，fly，very，park（2）句型：由will引导的一般将来时（注：教材内容见文后的附录1。）

简介：Primarycentralnervoussystemlymphoma(PCNSL)isararedisorderthat,in95%ofcases,representsdiffuselargeB-celllymphoma.Assuch,makinganaccuratediagnosisisimportant.Atpresent,stereotactic-guidedbiopsyisarecognizedmethodofchoicefortissueanalysis.However,thediagnosticwork-upforhigh-riskpatientsisdeterminedbytheirperformancestatus.Here,wereportacaseofPCNSLinahigh-riskpatient,forwhomdiagnosiswasestablishedbycerebrospinalfluidcytologyandflowcytometry,whichsignificantlyshortenedadiagnosticwork-upperiodandallowedfortheimmediatetreatmentofthepatient.

简介：拉制金属表被合拢与11%变硬工作。这些随后被使用，抵抗焊接构造X类型格子捆绑有0.17的核心亲戚密度的三明治面板。三明治面板在单轴的压缩被测试，为比较，有限元素的方法被采用模仿测量压缩压力紧张曲线。山峰压缩力量比金字塔形的核心三明治的高是32%。变硬工作的X类型格子结构的提高的机械性质主要与弯曲并且工作变硬的低度从直神气的贡献发源，而非二维的蹒跚的节点。