简介：UnipolarresistiveswitchingbehaviorsoftheZnOandAl2O3/ZnOfilmsfabricatedonflexiblesubstratesbypulselaserdepositionwerestudiedinthispaper.Thefilmsweredepositedatroomtemperaturewithoutpost-annealingtreatmentduringtheprocess.XraydiffractionresultsindicatedthatZnOfilmhasadominantpeakat(002).ScanningelectronmicroscopyobservationshowedacolumnargrainstructureoftheZnOfilmtothesubstrate.ThebilayerdeviceofAl2O3/ZnOfilmshadstableresistiveswitchingbehaviorswithagoodenduranceperformanceofmorethan200cycles,highresistiveswitchingratioofover103atareadvoltageof0.1V,whichisbetterthanthatofthesingleoxidelayerdeviceofZnOfilm.Apossibleresistiveswitchingfilamentarymodewasdemonstratedinthispaper.TheconductionmechanismsofhighandlowresistancestatescanbeexplainedbyspacechargelimitedconductionandOhmic’sbehaviors.Theenduranceofthebilayer(BL)devicewasnotdegradeduponbendingcycles,whichindicatesthepotentialoftheflexibleresistiveswitchingrandomaccessmemoryapplications.

简介：镓氮化物的大数量(轧)nanowires经由Ga2O3电影在一个石英试管在950点在氧化的铝层上扔了的ammoniating被准备了。当水晶的wurtzite由X光检查衍射，X光检查光电子spectrometry扫描电子显微镜和精选区域的电子衍射轧了，nanowires被证实了。传播电子显微镜(TEM)和扫描电子显微镜学(SEM)表明nanowires非结晶、不规则，与从30nm到直到十微米的80nm和长度的直径。精选区域的电子衍射显示有六角形的wurtzite结构的nanowire是单身者水晶。生长机制简短被讨论。

简介：Organicmultiplequantumwells(OMQWs)consistingofalternatinglayersoforganicmaterialshavebeenfabricatedfromtris(8-hdroxyquinoline)aluminum(Alq)and2-(4-biphenylyl)-5-(4-tertbutylphenyl)-1,3,3-oxadiazole(PBD)byamultisource-typehigh-vacuumorganicmoleculardeposition.Fromthesmall-angleX-raydiffractionpatternsofAlq/PBDOMQWs,aperiodicallylayeredstructureisconfirmedthroughtheentirestack.TheAlqlayerthicknessintheOMQWswasvariedfrom1nmto4nm.Fromtheopticalaborption,photoluminescenceandelectroluminescencemeasurements,itisfoundthattheexcitonenergyshiftstohigherenergywithdecreasingAlqlayerthickness,ThechangesoftheexcitonenergycouldbeinterpretedastheconfinementeffectsofexcitonintheAlqthinlayers.Narrowingoftheemissionspectrumhasalsobeenobservedfortheelectroluminescentdevices(ELDs)withtheOMQWsstructureatroomtemperature.

简介：Thenear-ultraviolet(n-UV)excitedblue-emittingSr2MgSi2O7:Eu2+phosphorsareusedforfluorescencelampandtricolorwhiteLEDs.Theeffectofnitrogen-dopedonthestructureofthehostandtheenhancementofphotoluminescenceisexperimentallyinvestigated.Theresultsshowthatastheamountofnitrogen-dopedvariesfrom0to0.6(at.),theluminousintensityisfoundtobeincreasedto169%,andthepartialreplacementofObyNresultsinachangeofthecrystalfieldbymodifyingthesymmetryofthecrystalstructure.Asaresult,withthenitrogen-dopedinsmallamount,theluminousintensity,chromaticitycoordinatesandthecolorpuritycanbeadjustedtoadesiredvalueintheapplications.

简介：Cu2ZnSnS4(CZTS)粉末被使用ZnS和Cu2没有任何中介，原料直接在450愠?浥瑰?瑳浯d分阶段执行的SnS3

简介：研究了掺CoO、Nb2O5、La2O3的SnO2基压敏陶瓷，用阻抗相角图表明了阻抗数据，结果表明，在所测的压敏陶瓷中，其晶粒边界处有不同的缺陷。主要的载流子是O′和O″。LaSn′的作用是促进O′和O″缺陷的形成，它对在晶粒边界区接触面处势垒的形成起了决定性作用。

简介：在2016年G20杭州峰会中，索贝融合媒体导播系统V—Studio承担了旧C中央电视台新闻报道中心公共信号和前方记者现场报道信号的融合切换、在线包装、调音、录制、流媒体发布等工作，并通过该系统向CCTVNewsLive客户端同步进行流媒体直播报道．让海内外观众能够近距离、全方位、多角度获取G20杭州峰会相关信息。索贝的融媒体实力再一次经受住了实践的考验!

简介：我们认识到NiCo2由激光照耀的O4nanomaterialsNiCo2有不同集中的O4暂停。结果表明同样准备的样品是有568nm和优异dispersity的最大的平均尺寸的需要的范围，它在0.30JDS的精力密度被获得)。Obwohl死ErkrankungenvieleGemeinsamkeitenaufweisen(Fiebersch浭湥慦獳湵?浉畭歮浯牰浯瑩楴牥湵?楢杲?浩敭?楥?牥???獥删獩歩????釧????????闧?郦????駥?釧?闦??駥?跧???闦?臧?臧????駥膹?郦?飧?蓦???釧?釧?蓦???跧?觧??跧?????觧?釧??闦??闦?觧?郧?闦???跧???釧????触?跧??趥觧?鷦？？

简介：WereportthedepositionofNb2O5filmsonunheatedBK-7glasssubstratesusingremoteplasmasputteringsystem.Theremoteplasmageometryallowspseudoseparationofplasmaandtargetbiasparameters,whichofferscompletedepositionratecontrol.Usingappropriateoxygenflowrates,high-densityandlow-lossNb2O5filmsaredepositedwithratesupto0.49nm/s.Lowerdepositionrates(~0.026nm/s)canalsobeobtainedbyworkingatlowtargetcurrentandvoltageandatlowpressure.Nb2O5filmsdepositedatdifferentrateshavetherefractiveindexofabout2.3andtheextinctioncoefficientaslowas6.9×10-5.

简介：Chalcopyrite-typeCuInSe2nanoparticlesaresuccessfullypreparedbyusingIn2Se3nanoparticlesasaprecursorreactedwithcopperchloride(CuCl)solutionviaaphasetransformationprocessinlowtemperature.Thereactiontimeisakeyparameter.Afterthereactiontimeincreasingfrom0.5hto8h,In2Se3andCuClreactwitheachothergraduallyviaphasetransformationintoCuInSe2withoutanyintermediatephase.ThecrystallinestructureandmorphologyoftheCuInSe2nanoparticlesarecharacterizedbyX-raydiffraction(XRD)andfieldemissionscanningelectronmicroscopy(FESEM).ThediameterofCuInSe2nanoparticleswithgooddispersibilityrangesfrom10nmto20nm.ThebandgapoftheCuInSe2nanoparticlesis1.04eVcalculatedfromtheultraviolet-visible(UV-VIS)spectrum.

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

简介：srzn2（PO4）2：在大气中的高温固相反应合成Sm3＋荧光粉。srzn2（PO4）2：Sm3＋荧光粉是通过紫外光有效激发（UV）和蓝色光，和发射峰被分配到2-6h54G5//2过渡（563nm），2-6h74G5//2（597nm和605nm）和2-6h94G5//2（644nm和653nm）。对srzn2发射强度（PO4）2：Sm3＋的Sm3＋浓度的影响，其浓度猝灭效应srzn2（PO4）2：钐也观察到。当掺杂离子（=Li，Na和K）离子的发光强度，srzn2（PO4）2：Sm3＋可以明显增强。在国际照明委员会（CIE）的srzn2色坐标（PO4）2：Sm3＋定位在橙红色的区域。结果表明，该荧光粉具有潜在的应用在白光发光二极管（LED）。

简介：DVS最新推出的Pronto2K2和ProntoHD.2硬盘录像机．使Pronto2K和ProntoHD模块产品系列得到进一步完善。这两款新产品应用了DVS新开发的专用视频板卡，采用软件处理相应的传输延迟和误差．具备全自动传输一致的独特性能。

简介：Inthiswork,Bi2Te3films(250nm)arefabricatedonSiO2/Sisubstratesbyradiofrequency(RF)magnetronsputteringatroomtemperature,andthepreparedfilmsareannealedoverthetemperaturerangeof200°Cto400°C.Crystallinityandelectricalpropertiesofthefilmscanbetunedcorrespondingly.ThepowerfactorsofBi2Te3filmsof0.85μW/K2cmto11.43μW/K2cmwereachievedafterannealing.Theinfraredreflectancemeasurementsfrom2.5μmto5.0μmdemonstratethatthereisalsoaslightred-shiftoftheplasmaoscillationfrequencyintheBi2Te3films.Bymeansofplasmoniccalculations,weattributethered-shiftofabsorptionpeakstothereductionofcarrierconcentrationandthechangeofeffectivemassofBi2Te3filmswiththeincreasedannealingtemperature.

简介：2003年，中国IT服务市场规模呈大幅上升趋势，IT服务正成为IT产业中一个强势增长的市场。特别是随着我国企业信息化的逐步深入，信息化应用和解决方案将会掀起新一轮发展热潮，并将与电子政务一同为IT服务商提供巨大商机。

简介：2004年，宽带市场发展的主要动力来源于固网运营商的推动和市场需求的拉动。宽频娱乐、游戏将是宽带消费的一大热点，娱乐与体育竞技类的服务也是今年宽带内容消费的一大方向。

简介：

简介：沈阳机床集团董事长关锡友于日前集团新闻发布会谈到，搭载全部自主研发技术的沈阳机床i5新品智能机床于去年上市当年订单销售突破2000台，浙江区域用户重复购买率达64％。今年1月份i5智能机床订单突破百台量级，五轴智能机床今年将实现量产。未来3年，沈阳机床将实现2万台i5智能机床网络互连。

简介：:Twonovelpoly[(3-alkyhhiophene-2,5-diyl)-(benzylidenequinomethane-2,5-diyl)s]derivatives,poly[(3-butylthiophene-2,5-diyl)-(p-N,N-dimethylamino)benzylidenequinomethane-2,5-diyl)](PBTDMABQ)andpoly[-(3-octylthiophene2,5-diyl)-(p-N,N-dimethylamino)benzylidenequinomethane-2,5-diyl)](POTDMABQ),weresynthesized.Thebandgapsofthetwopolymersarecalculatedas1.75eVforPBTDMABQand1.69eVforPOTDMABQ,respectively.Thehomogenousfilmsofthetwopolymerswerepreparedandtheirthird-ordernonlinearopticalpropertieswerestudiedbythebackwarddegeneratefour-wavemixingat532nm.Byusingtherelativemeasurementtechnique,thethird-ordernonlinearopticalsusceptibilitiesofPBTDMABQandPOTDMABQarecalculatedas5.62×10^-9and1.22×10^-8ESU,respectively.Itisfoundthatsubstitutedalkygroupshavestrongeffectsonthebandgapandnonlinearopticalpropertiesofthetwopolymers.Therelativelybigthird-ordernonlinearopticalsusceptibilitiesandsmallbandgapofPOTDMABQresultedmainlyfromthelongeralkylwithstrongelectron-donatingabilitycanenhancethedelocationdegreeofconjugatedπelectronics.

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