简介：TheanalysisofsolarcellperformancehasbeendonebysimulatingtheexternalI-Vcharacteristicsofn^+/p/p^+singlecrystalsiliconsolarcellunderhighlightintensityand1.5airmass(AM).Thismethodallowsthemaximizationofsolarcellefficiency.Tofabricatelow-costn^+/p/p^+singlecrystalsiliconsolarcells,solidsourceofdopedphosphorousandboronwasused.

简介：Photoluminescenceevaluationofpandntype6H-SiCsampleshasbeendone.Resultsshowthatatlowtemperaturethephotoluminescenceof6H-SiCisclearlydominatedbydonor-acceptorpairtransitions,insomecase,free-to-donortransitioncouldbeobservedathighertemperature.Thethermalquenchingprocessesofthephotoluminescencehavebeeninvestigatedtodeterminethepossibleionizationnenergiesoftheimpurities.

简介：Theinfluenceofp-typeGaN(pGaN)thicknessonthelightoutputpower(LOP)andinternalquantumefficiency(IQE)oflightemittingdiode(LED)wasstudiedbyexperimentsandsimulations.TheLOPofGaN-basedLEDincreasesasthethicknessofpGaNlayerdecreasesfrom300nmto100nm,andthendecreasesasthethicknessdecreasesto50nm.TheLOPofLEDwith100-nm-thickpGaNincreasesby30.9%comparedwiththatoftheconventionalLEDwith300-nm-thickpGaN.ThevariationtrendofIQEissimilartothatofLOPasthedecreaseofGaNthickness.ThesimulationresultsdemonstratethatthehigherlightefficiencyofLEDwith100-nm-thickpGaNisascribedtotheimprovementsofthecarrierconcentrationsandrecombinationrates.

简介：ByanalyzingthemainrecombinationmechanismsinGaInAsSbmaterials,thedependencesofthedarkcurrentdensityandopencircuitvoltageinn+-pGaInAsSbthermophotovoltaiccellsontherecombinationparameters,carrierconcentrationandcellthicknessarecalculated.Theresultsshowthatthedarkcurrentmainlycomesfromp-region,anditisrelatedwiththesurfaceandAugerrecombinationsinlowandhighcarrierconcentrationranges,respectively.ThesurfaceandAugerrecombinationscanbesuppressedbyreducingthesurfacerecombinationvelocityandcarrierconcentration,respectively.Thedarkcurrentdensitycanbesuppressedbyoptimizingmaterialparametersanddevicesurfacepassivationtechnique.SothehighopencircuitvoltagecanbeobtainedforGaInAsSbthermophotovoltaiccells.

简介：AwedgeshapeSiLEDisdesignedandfabricatedwith0.35μmdouble-gratingstandardCMOStechnology.ThedevicestructureisbasedontheN-well-P+junction.TheP+hasawedgeshapeandissurroundedbytheN-well.ThemicrographsofSiLEDs'emittingandlayoutarecaptured.TheI-VcharacteristicandspectraoftheSiLEDaretested.Underroomtemperatureandbackwardbias,itsradiantluminosityis12nWat100mA,andthewavelengthoftheemittingpeakislocatedat764nm.

简介：Cupricoxide(CuO)isconsideredtobeapromisingmaterialforphotovoltaicapplications.Inthispaper,p-CuO/n-Sijunctionsolarcellswereobtainedbythermaloxidationofmetalliccopperfilmsdepositedonn-Sisubstratesat400℃for5h.X-raydiffractionpatternsshowthattheas-preparedfilmsareCuOwithmonocliniccrystallinestructure.HalleffectmeasurementresultsshowthatCuOfilmsarep-typeconduction.Adirectband-gapof~1.57eVfortheCuOfilmisdeducedfromUV-VisAbsorbancespectra.SolarcellsofCu/p-CuO/n-Si/AlstructureshowthatitsphotovoltaicbehaviorhasamuchwiderspectrumresponsewidthcomparedwiththatofSisolarcells.Inaddition,thephotocurrentofCuO/n-SijunctionisinvestigatedasafunctionofCuOfilmthickness,anditisfoundthatthecriticalthicknessforCuOonSiisabout250nm.

简介：基于陷阱的p-i-n的I-V特征紫外察觉者被介绍。它在不同温度被测量并且与变化分析了温度。设备的想象力因素在房间温度是2.09。最大的想象力因素在100点是2.14，它超过100衰退，并且最小的想象力因素在300点是1.26。前面的电压对温度的系数是有1个妈的前面的电流的-1.97mV/。基于两倍注射模型，在i区的深躺杂质激活精力是0.1343eV。

简介：<正>后起之秀来势凶猛,一向以创新闻名的广东派岂甘示弱广东虽不是国内第一家P2P网贷平台的发起地,但是在这里,从英美复制而来的P2P模式得以真正落地并迅速本土化。由于广东网贷平台的一系列创新,让P2P行业在国内的信用环境尚不成熟的情况下,规模得以扩大,并渐渐成为诸多小微企业融资和白领投资的新宠。但与此同时,这些创新也为P2P模

简介：与开发和许多的应用程序流行对等(P2P)系统象eMule和BitTorrent那样，蠕虫可能采用这些P2P网络的特征置他们于危险地位。一些特征例如本地路由表格和申请路由机制，是有用的快速散布P2P蠕虫进网络。这篇论文试图给P2P蠕虫的全面调查。定义和P2P蠕虫的分类第一被讨论。然后，包括试验性的分析，当模特儿的繁殖，和防御途径，P2P蠕虫的研究和发展详细被探讨并且分析。

简介：为结构化的P2P蠕动的un-的贪婪繁殖政策采用每个节点的附近的节点表在对等(P2P)联网加快P2P蠕虫的繁殖。在描述P2P蠕虫的技术背景以后，贪婪繁殖的算法被探讨。为这条新奇繁殖政策模仿设计也被描述。然后，在传播上的贪婪繁殖政策的效果加速，在静态的P2P蠕虫的会聚的集中速度，和攻击交通被模仿并且讨论。主要试验性的结果证明贪婪繁殖是有害的并且能把严重损坏带到P2P网络。

简介：Recently,Changetal.proposedaSudoku-basedsecretimagesharingscheme.TheyutilizedtheSudokugridtogeneratemeaningfulshadowimages,andtheirschemesatisfiedallessentialrequirements.BasedonChangetal.'sscheme,weproposeanovel(n,n)secretimagesharingschemebasedonSudoku.Intheproposedscheme,asecretimagecanbesharedamongndifferentcoverimagesbygeneratingnshadowimages,andthesecretimagecanbereconstructedwithoutdistortionusingonlythesenshadowimages.Also,theproposedschemecansolvetheoverflowandunderflowproblems.Theexperimentalresultsshowthatthevisualqualityoftheshadowimagesissatisfactory.Furthermore,theproposedschemeallowsforalargeembeddingcapacity.

简介：1．引言P2P对等网络是非中心化网络，信息的交换不需要通过创建的中心站点，而直接在对等设备（如个人计算机）间动态地进行信息交换和服务，是一种高效直接的传输方式。P2P打破了传统的C／S模式，各节点对等并可互相提供服务。P2P对等应用在互联网中已经非常普及，并且成为网络资源的巨大消耗者。随着移动数据业务与可承载数据业务终端的普及，以及移动通信网络的快速发展，移动终端与网络结合得越来越紧密，在移动环境中如何实现P2P应用已经引起广泛关注。

简介：Theletterproposesathree-layermanageablemediadistributionnetworksystemarchi-tecturecalledMSPnet,whichisbasedonSessionInitiationProtocol[1]andPeertoPeer(SIPP2P)technology.MSPnetperformsapplication-levelstructuredDHTroutingandresourcelocationamongdomainsandunstructuredonesindomain.Exceptformediadistribution,itcanbeusedtosupportavarietyofP2Papplications,includingvideobroadcasting,videoondemand,VoIP,etc.MSPnetiscomposedofthreelayers,namely,thesignalcontrollayer,themanagementlayer,andthemediatransportationlayer.TheMSPnetprototypeconsistsoftheSIPserver,themanagementserver,themediaserver,andthenodeUserAgent(UA).Resultsfromaprototypeexperimentinalarge-scaleInternetenvironmentshowthatMSPnetisfeasible,scalableandmanageable.

简介：ThekeyprobleminunstructuredP2Psystemishowtocontrol'Flood'.Somestudiesfocusonconstructingmoreefficienttopologywhileothersfocusonbetterqueryalgorithms.ThispaperpresentsHICUS(HierarchicalInterest-drivenCommunity-basedUnstructuredSystem)motivatedbyabasicthought-whethertheresourcescorrelatewithtopologydistinguishesstructuredandunstruc-turedP2Pessentially.Byintroducinghierarchical'interest',HICUSorganizesaquasi-structuredtopologythroughapuredistributedway,andprovidesanewplatformforqueryalgorithms.Westudytheprocedureandperformanceoftopologyorganization,andthesimulationsshowthatHICUSformsasmall-worldwhichcansignificantlyimprovetheroutingefficiency.

简介：<正>互联网时代,金融业作为传统行业中最封闭、坚硬的一块,正被新闯入者逐渐打破。以支付宝为代表的第三方支付在如履薄冰多年后,终于在最近两年里,陆续拿到期盼已久的牌照。这支互联网金融的先锋大军,早已从PC、移动设备端蚕食银行业的支付业务。而作为互联网金融的新贵,P2P网贷心怀远大,其意图染指的是银行业最重

简介：Apeer-to-peer(P2P)networkisadistributedapplicationarchitecturewhichprovidesmanyattractivefeatures,suchasavailability,self-organization,load-balancing,andanonymity.However,P2Pnetworkhascreatedsignificantproblemstonetworkoperatorsbygeneratinglargevolumesofinterautonomoussystem(inter-AS)traffic.FocusingontheBitTorrentswarmingprotocol,thispaperproposesanapproachwhichaimstoreduceP2Pgeneratedinter-AStraffic.Inparticular,theapproachcanreduceinter-AStrafficby50%to70%.Moreover,itcanimprovethedownloadingspeedby60%forthepopulartorrents.Theevaluationshowsthatcontrolledregional-basedcontentsreplicationcaneffectivelyachievethisgoal.Furthermore,theapproachisincrementallydeployable.NetworkregionsinwhichthesystemgetsdeployedcansolvetheirP2Pgeneratedinter-AStrafficproblemsautonomously,i.e.,withoutanyInternetserviceproviders-collaborationandanyrequirement,thesystemcanbedeployedintheentireInternet.

简介：InviewofthelimitationsofaRn-GnmodelinthelowfrequencyrangeandthedefectsofanEn-Inmodelincommonusenow,thispaperbuildsacompleteEn-Inmodelaccordingtothetheoryofrandomharmonic.Theparametersforthelow-noisedesignsuchastheequivalentinputnoisyvoltageEns,theoptimumsourceimpedanceZsoptandtheminimumnoisefigureFmincanbecalculatedaccuratelybyusingthisEn-Inmodelbecauseitconsidersthecoherencebetweenthenoisesourcesfully.Moreover,thispaperpointsoutthatitwillcausethemaximum30%miscalculationwhenneglectingtheeffectsofthecorrelationcoefficient7.Usingtheseries-seriescircuitsasanexample,thispaperdiscussesthemethodsfortheEn-InnoiseanalysisofelectroniccircuitspreliminarilyanddemonstratesitscorrectnessthroughthecomparisonbetweenthesimulatedandmeasuredresultsoftheminimumnoisefigureFminofasinglecurrentseriesnegativefeedbackcircuit.

简介：在n类型的坚持的光导增益(PPC)现象轧了电影成年bymetalorganic化学药品蒸汽免职(MOCVD)被学习了。在使用一些测试和分析方法以后，例如双水晶X光检查衍射(DCXRD)，光致发光(PL)系列，等等，在n类型的PPC轧了影响的问题不相对脱臼和黄乐队(YB)，这被发现，并且被Si的做的水平很可能引起。

简介：Linearcomplexityandk-errorlinearcomplexityofthestreamcipheraretwoimportantstandardstoscaletherandomicityofkeystreams.Forthe2n-periodicperiodicbinarysequencewithlinearcomplexity2n1andk=2,3,thenumberofsequenceswithgivenk-errorlinearcomplexityandtheexpectedk-errorlinearcomplexityareprovided.Moreover,theproportionofthesequenceswhosek-errorlinearcomplexityisbiggerthantheexpectedvalueisanalyzed.

简介：因特网已成为全球最大的信息基础设施，在全球宽带化、移动化、IP化、融合化、个性化大潮中，IPv6的海量地址支持及改进的业务解析能力与PeertoPeer（P2P）对等互联及有效宽带资源共享传送能力相组合，可以期望将会对开启未来信息通信网络新时代做出新的贡献!