简介：Wereportonacompactpassivemode-lockedEr:fiberringlaseroperatedatthefundamentalrepetitionrateof517MHz,whichwebelieveisthehighestfundamentalrepetitionrateeverreportedinaringcavityfiberlaser.Thekeytechniqueistheemploymentoftwoinnovativehigh-powerwavelengthdomainmultiplexercollimatorswithallgainfibercavitysuitedforthehighpower(upto2W)pumping.Thelaserisfeaturedwithadirectchirpfreeoutputpulse,whichis97fswithoutextracavitycompressionatanaverageoutputpowerof90mW.

简介：ZnOnanowiresdepositedonSisubstrateswerepreparedbythermalevaporationofamixtureofZnOandcarbonpowder.Agionswithanenergyof63keVandadoseof5×1015ions/cm-2wereimplantedintotheas-preparedZnOnanowires.Afterionimplantation,theAg-implantedZnOnanowireswereannealedinairatdifferenttemperaturesfrom600℃to1000℃.Effectsofionimplantationandthermalannealingonthestructuralandphotoluminescent(PL)propertiesoftheZnOnanowireswereinvestigatedbytransmissionelectronmicroscopy(TEM),selectedareaenergydispersiveX-rayspectroscopy(SAEDX),X-raydiffraction(XRD),andfluorescencespectrophotometry.TEM,HR-TEM,andSAEDXanalysesdemonstratedthatefficientdopingofAgwasachievedbyionimplantationandthesubsequentannealingprocess.XRDpatternsrevealedthatthehexagonalwurtzitestructureofZnOnanowireswasmaintainedafterionimplantation.PhotoluminescentemissionsofZnOnanowiresweredecreasedsignificantlybyAgimplantationbutcouldberecoveredbythermalannealing.ThemechanismoftheinfluenceofionimplantationandannealingonthePLintensitywasassessed.

简介：在Alq(3)层的洞传导性上做的2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane(F4TCNQ)的效果被测量。在Alq(3)的洞唯一的设备，当前的密度在与F4TCNQ做之上在1-3数量级增加，建议做的罐头有效地提高Alq(3)的洞注射和洞运输能力。用F4TCNQ的一台器官的轻射出的设备做了Alq(3)洞注射和洞运输层，和太古的Alq(3)作为电子运输和射出的层被制作并且描绘的层。明亮的排放作为电子运输和射出的层作为洞运输层和内在的Alq(3)与做p的Alq(3)在简单OLED被完成。设备的射出的效率和亮度被插入薄电子块层在器官的层的中间限制搬运人再结合地区进一步改进。

简介：Poroussiliconpillararray(PSPA)sampleswhichareidealsubstantialmaterialswithdominantelectronicandluminescencepropertieswerepreparedbysurfaceetchingmethod.ZnOnanorodswithorwithoutMndopinggrownuniformlyandalignedontoPSPAregardlessoflatticematchingshowvariousphotoluminescence(PL)properties.ThedopedMnionsinZnOnanorodsweredirectlyobservedbyX-rayphotoelectronspectroscopy(XPS),andZnOstructuresweredetectedbyX-raydiffraction(XRD).Asthedopingconcentrationincreases,XRDpeaksofZnOnanorodsshifttolowangle.TheinfluencesofdopingMnionsonluminescencepropertiesofZnOnanorodswereinvestigated.Exceptfortheultraviolet(UV)PLband,thebroadPLbandisobservedatvisibleregion.Thebandcouldbedividedintothreeseparatebands(orange,greenandred)byLorentziandeconvolution.TheintensityoforangePLbandfirstlyincreasesthendecreases,andthengetsthemaximumatthedopingMn-to-Znmolarratioof2.0:100.0whichisthemosteffectivedopingconcentration.ThegreenPLbandisattributedtozincvacancyofZnO,theorangePLbandtoMnionsrecombinationofitself,andtheredPLbandtooxygenvacancyofZnO,respectively.AstheMn-dopedZnOnanorodscouldemityellowgreenluminescenceexcitedbyUVradiation,anddopedMnionscouldimprovethecolorrenderingindexoftheluminescence,thenanorodscouldbeusedaspromisingwhite-lightemittersinthefuture.

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简介：4-hydroxy-4'-nitroazobenzene(NHA)and4-amino-4'-nitroazobenzene(DO3)werepreparedrespectivelyfromp-nitrophenylamineasaprecursorcompound.Twokindsofdopedorganic/inorganichybridnonlinearoptical(NLO)materialscontainingNHAandDO3weresynthesizedbySol-Gelprocess.ThepreparationandpropertiesoftwoNLOmaterialswerestudiedandcharacterizedbyFTIR,1H-NMR,UV-VIS,SEM,DSCandSHGmeasurements.TheresultsshowthatthemaximumdopingamountsofNHAandDO3intwodopedhybridNLOmaterialsare7.2(wt)%and11.3(wt)%respectively,andthecorrespondingsecond-orderNLOcoefficients(d33values)are2.91×10-8esuand6.14×10-8esu.TwodopedNLOmaterialshaverelativelygoodRTstability,after90daysatRTthed33valuescanmaintainabout85%oftheirinitialvalues,butafter10hat100℃canonlymaintainabout50%oftheirinitialvalues.Inthisreport,thereasonsforhigh-temperatureinstabilityofdopedmaterialswerediscussed,andthepossibleimprovementswerealsosuggested.

简介：低聚结氧化钇的制造怪癖(Y2经由有短暂形态学的做硫酸盐的先锋的热分解的O3)nanopowders被学习。它被决定那Y2(OH)5(NO3)x(CO2)y(SO4)z·nH2水晶的先锋经历了的O(n=1-2)破碎和分解进孤立的伪球形的Y2在锻烧之上的O3粒子。效果与经由减少接触表面最小化像板的雏晶的免费精力被连接直到到spheroidization的片刻和隔离的成就那发生在T=1100°C。剩余硫酸盐离子在因此保留quasy球形的形态学和Y2O3nanopowders。有53±13nm的中等粒子尺寸的做硫酸盐的氧化钇nanopowders与从更好的粒子尺寸，更狭窄的粒子分发和更低的凝块度产生的undoped比较拥有了改进sinterability。

简介：ThemicrostructureandmagnetostrictivepropertieswereinvestigatedintheTbdopedFe83Ga17-xTbx(x=0.05,0.10,0.20,0.30,0.40,0.50)bulkrodspreparedbymeltrapidlyquenching.ThepartialsolidsolubilityofTbintheFe–GamatrixwaspreliminarydetectedbythelatticeparametersandSEMobservation.ThematrixkeepsA2structureandthesecondphaseappearssurroundthegrainboundaryasxC0.1.h100ipreferredorientationisalsoobservedforx=0.1samplealongtheaxisofthequenchedrod.Thesaturationmagnetostrictionfirstincreasesandmaximumvaluereachesatx=0.1,andthendecreaseswithTbadditionincreasing.TheinitialincreaseofthemagnetostrictionshouldbeassociatedwiththepartialsolutionofTbinthematrix,themaximumvalueatx=0.1shouldbeattributedtotheh100ipreferredorientation,andthedecreaseofthemagnetostrictioniscorrelatedwiththeappearanceofthesecondphasealongthegrainboundary.

简介：黄磷(Bi1-xSmx)2ZnB2O7(x=0.01，0.03，0.05，0.07，和0.09)被常规稳固的州的反应综合。所有样品的纯净被X光检查粉末衍射(XRD)检查。XRD分析证明所有这些混合物具有Bi2ZnB2O7的一个单个阶段，显示在Bi2ZnB2O7的双性人(3+)能被没有晶体结构的变化的Sm(3+)部分代替。在房间温度的刺激和排放系列显示出Sm(3+)的典型4f-4f转变。主导的刺激线在404nm附近由于(6)H5/2→(4)K11/2和排放光谱在563，599，646，和704nm由一系列线组成由于(4)G5/2→(6)H5/2，(6)H7/2，(6)H9/2，并且(6)H11/2分别地。在Bi2ZnB2O7的Sm(3+)的最佳的集中关于3mol%(相对1mol双性人(3+))并且批评距离Rc作为2.1nm被计算。Bi1.94Sm0.06ZnB2O7的排放紧张的温度依赖在在100和450K之间的温度范围被检验。紧张下降了到起始的紧张的一半的熄灭的温度是280K。为在Bi1.94Sm0.06ZnB2O7的Sm(3+)的一生作为0.29和1.03ms的价值被适合。

简介：Carbon-basematerialswillbemajorplasmafacingmaterials(PFM)inafusiondeviceinneartermandeveninthefutureinspiteofitshightritiumtrappingandchemicalsputteringyield.Ofcourse,thedevelopmentofhighZPFMandfreesurfacesystemarealsoimportantforfusionenergy.

简介：ACe3+tion-dopedα-NaYF4singlecrystalofhighqualityisgrownsuccessfullybyanimprovedfluxBridgmanmethodundertheconditionsoftakingthechemicalrawcompositionofNaF:KF:YF3:CeF3inthemolarratioof30∶18∶48∶4,wheretheKFisshowntobeaneffectiveassistantflux.Thexraydiffraction,absorptionspectra,excitationspectra,andemissionspectraoftheCe3+t-dopedα-NaYF4singlecrystalaremeasuredtoinvestigatethephaseandopticalpropertiesofthesinglecrystals.TheabsorptionspectrumoftheCe3+t:α-NaYF4showsastrongbandthatpeaksatthewavelengthof300nm.TheemissionspectrumoftheCe3+t:α-NaYF4emitsanintenseultraviolet（UV）bandatthewavelengthof332nmundertheexcitationof300nmlight.Twoseparatedluminousbandsof330and350nm,whichcorrespondtothetransitions5d→2F25∕2and5d→F7∕2,canbeobtainedbyGaussfitting.ThestrongemissionintensityattheUVbandandtheexcellentopticaltransmissionintherangeofUVwavelengthsindicatethatCe3+t:α-NaYF4singlecrystalscanbeconsideredasapromisingmaterialforUVlasers.

简介：Aseriesofwell-dispersedtitania-dopedceriananoparticlesCe1-xTixO2wererapidlypreparedbyanovelsalt-assistedsolutioncombustionprocessusingcorrespondentmetalnitratesasoxidizersandethylglycolasfuel,andthencoatedwithamorphoussilicabyseededpolymerizationusingtetraethylorthoslicate(TEOS).Theas-preparedsampleswerecharacterizedbytransmissionelectronmicroscopy(TEM),X-raydiffraction(XRD),Fourier-transforminfraredspectroscopy(FTIR),andultraviolet-visiblelight(UV-Vis)diffusereflectancespectroscopy.Theresultsindicatedthatcomparedwiththeas-preparedpureceriananoparticles,thered-shiftphenomenonoccurredforTi-dopedceriananoparticleswithTiincorporation.Meanwhile,theabsorptionintensityintheUVlightregionslightlydecreasedandtransmissionrateinvisiblelightregionwassomewhatenhanced.Incomparisonwiththesilica-coatedCeO2nanopowders,thesilica-coatedCe0.95Ti0.05O2nanopowdersdisplayedthesameabsorptionintensityintheUVlightregion,broaderUVabsorptionbandandhighertransmissionrateinvisiblelightregion.

简介：这份报纸在极其细小的颗粒的WC-12%Co合金的磁性、机械的性质上处理codopedVC/Cr3C2和sintering温度的效果。结果证明在最佳的比例的做的VC/Cr3C2的synergistic行动提高坚硬和合金的横向的破裂力量(TRS)，与更多的同类的微观结构。当合金是在1430点的sintered时?C并且与0.5%Cr3C2/0.2%VC，TRS到达3786MPa，坚硬是91.7HRA和比0.6m小的谷物尺寸。谷物生长上的数字分析在sintering过程期间证明在WC谷物边界并且Cr3C2溶解在公司上猛抛的两VC分阶段执行减少固体/液体的界面的精力，溶解和降水的过程极大地被延迟，WC谷物变粗被禁止。

简介：摘要目的分析研究脂血对PT、APTT、Fbg和TT结果测定的影响。方法选取2014年1月-2015年1月在我院住院无凝血功能异常史的普通手术患者一共有92例，对92例病人进行PT（血浆凝血酶原时间）、APTT（活化部分凝血活酶时间）、TT（凝血酶时间）、Fbg（纤维蛋白原）含量测定，对脂血标本通知临床让病人空腹12小时以后重抽复测，进而消除脂血的干扰，对脂血组与非脂血检测结果给予对比。结果临床检测以后，脂血组患者的PT为17.3±1.4S，APTT为38.5±3.2S，TT为16.7±0.5S，Fbg为4.1±0.25g/L；对照组患者的PT为13.4±0.6S，APTT为32.6±2.7S，TT为13.2±1.5S，Fbg为2.1±0.03g/L，结果显示，脂血组的PT、APTT、TT、Fbg评分明显高于对照组，其之间的差异具有统计学意义（P<0.05）。结论临床检测当中标本脂血对凝血结果的检查均带来不同程度的干扰，建议病人空腹12小时以后重抽进行复测，进而使临床检测结果准确性明显提高。

简介：1引言湖南新华印刷集团印务中心变电所现有两台高压电压互感器屏（PT3X14），其中第一配电间的高压电压互感器屏用于园区总供电电源线路和第一配电间内部高压线路的缺相监视、绝缘监视以及电压数据显示；另一台用于第一配电间至第二配电间的高压联络线路的缺相监视、绝缘监视以及电压数据显示。电压互感器是电力系统中供保护和测量用的重要设备，它有如下重要作用：

简介：摘要：发电机PT二次信号作为测量、保护装置重要的信号来源，具不可替代的位置，当出现PT断线时，应及时正确的处理以避免造成不良后果。本文从PT结构原理角度出发，结合某电厂210MW机组PT断线故障的发现、分析、处理过程，介绍了故障的处理原则，具有较强的针对性，为同行提供参考和借鉴。

简介：Au-core/Pt-shellnanorods(Au@PtNR)被一个Au调停nanorod的生长方法准备了，并且他们在联合条件下面展出高电磁的地改进。由Au核心产生的高电磁的领域的远程的效果增加了，电磁的领域改进能被改变nanostructures的形态学控制。在这研究，我们用有限差别时间域(FDTD)在电磁的领域改进的模拟上报导结果方法，考虑Au@PtNR的真实形状。由于热点效果，电磁的领域能在磅nanodots之间是局部性的。电磁的领域改进被发现相当独立于磅内容，而本地粗糙和小锋利的特征力量显著地修改近地。当电磁的领域改进能被磅nanodots的分发在Au核心上调节，Au@PtNR能在相关区域发现潜在的应用。

简介：Theexchangecouplingattheferromagnetic/antiferromagnetic(FM/AFM)interfaceisinfluencedbyboththemagneticstructureandthecrystallinemicro-structure.Co/FeMn/Cothinfilmswith0.4nmPtspacerlayerinsertedintotheCo/FeMnandFeMn/Cointerfacerespectivelyweredepositedbymeansofmagnetronsputtering.ThetwointerfacesuponandbeneaththeFeMnlayershowdistinctbehaviorsbeforeandafterthePtspacerinserted.ThereisaremarkableshrinkoftheinterfacialuncompensatedspinswithintheFeMnbottominterfacialmonolayers,whereasarelaxationofthepinningstrengthoftheFeMninterfacialspinsalongtheout-of-planedirectionoccursatthetopinterface.XRDanalysisindicatesthePtlayerupontheFeMnlayerformsanfcc(002)texture,implyingthemagneticdiscrepancybetweenthetopandbottomFeMninterfaceshascrystallinestructuralorigins.

简介：摘要随着经济社会不断向前发展，公众生活质量不断提升，对用电服务保障等方面的要求不断提高，对于电力行业而言，随着服务范围和发展规模不断扩大，发生安全隐患风险的概率也在不断提升，所以需要采取有效的措施和方法，防范各类事故风险，进而最大限度地保障电力系统安全稳定运行，促进社会稳定和行业可持续健康发展。本文对一起10kV线路PT事故进行了深入分析和原因总结，同时提出了具体的计划建议，以期为相关领域不断提高事故风险防范和控制水平提供一定的参考借鉴。