简介:摘要:任天堂是日本一家主要从事电子游戏软硬件的开发公司,电子游戏业三巨头之一,现代电子游戏产业的开拓者。ND机芯是任天堂游戏机的主要部品之一,从2007年开始,我作为一线生产管理者,为ND机芯做K物生产,但电子产品质量始终存在这样或那样的问题,本文介绍了我作为一线生产质量责任者,从策划到实施,以PDCA循环管理模式所生产的ND-K物产品,从导入初期至生产五年期间的质量变化。
简介:InordertoobtainultrafineNd-Fe-Bpowder,aspray-driedprecursorwastreatedbyreduction-diffusion(R/D)process.And,unliketheconventionalR/Dprocess,calciumreductionthatisacrucialstepfortheformationofNd2Fe14BwasperformedwithoutconglomeratingtheprecursorwithCapowder.Byadoptingthismodifiedprocess,itispossibletosynthesizethehardmagneticNd2Fe14Batthereactiontemperatureaslowas850℃.TheaveragesizeofNd2Fe14Bparticlesthatareuniformlydistributedintheoptimallytreatedpowderwas<<1μm.MostNd2Fe14BparticleswereenclosedwiththinlayersofNd-richphase.TypicalmagneticpropertiesofsuchpowderwithouteliminatingimpurityCaOwereiHc=~5.9kOe,Br=~5.5kG,and(BH)max=~6MGOe.
简介:分光镜并且在钠fluoroborate(SFB)的Nd3+离子的荧光性质眼镜通过光吸收,排放和腐烂大小被准备并且描绘。精力水平分析用免费离子的Hamiltonian模型被执行。试验性的振荡器力量被测量记录的吸收山峰包含的区域决定因为1.0mol.%Nd3+-做了眼镜。Judd-Ofelt参数(2,4,6)被用来评估象放射的转变那样的激光特征参数概率(AR),放射的腐烂时间(R),荧光分叉比率(R)和刺激排放为4F3/2的剖面图(e)亚稳的状态。为Nd3+离子的不同集中的荧光系列被在514.5nmAr+离子激光使样品激动记录。
简介:摘要目的探讨白内障术后后发障的发生及治疗.方法用NdYAG激光对460例816只眼白内障术后后发障的患者行后囊膜切开,分年龄、性别、植入IOL种类不同进行比较.结果年龄越年轻所患的后发障,需作二次激光及需手术治疗者相对多些;男女性别之间无显著性差异;一体式较三片式选择二次激光及手术的患者多些.结论NdYAG激光治疗白内障术后后发障,是一种简便、安全、有效的方法.关键词NdYAG激光后发障后囊膜切开中图分类号R776.1文献标识码B文章编号1008-6315(2015)12-0870-02
简介:AnenhancedadsorptionanddesorptionprocedureofNd(III)ontoD113-IIIresinwerepreparedwithvariouschemicalmethods.BatchstudieswerecarriedoutwithvariouspH,contacttime,temperatureandinitialconcentrations,andthencolumnstudieswereconducted.TheresultsshowedthattheoptimaladsorptionconditionwasatpHvalueof6.90.Theprocesswasfastinitiallyandarrivedequilibriumwithin60h.TheresinexhibitedahighNd(III)uptakeas232.56mg/gat298K.Theadsorptiondatafittedwellwithpseudo-second-orderkineticmodel.Thermodynamicparameterswerestudied,whichindicatedthattheadsorptionprocesswasspontaneousandendothermic.Thomasmodelwasdelineatedheretopredictthebreakthroughcurvesbasedontheexperimentalcolumnstudydata.Intheelutiontest,1mol/LHClsolutioncouldachieveasatisfactoryelutionrate,whichindicatedthatD113-IIIresincouldberegeneratedandreused.Finally,theIRspectroscopictechniquewasundertaken,andanoveladsorptionmechanismwasproposed.
简介:TheNd3+3.2%(atomfraction):KGd(WO4)2crystalwasgrownbyKyropoulosmethod.TheabsorptionspectrumandfluorescencespectrumofNd3+:KGWcrystalweremeasured.Theabsorptioncrosssectionsat808nm(0.6799×10-20cm2)werecalculated,andtheoutputwavelengthoffluorescenceis1064and1351nm.Thediode-pumpedlaserwasoperatedbothinthefree-runningandpassivelyQ-switchedoperatingmodes.Themaximumlaseroutput(1064nm)is326mWwith62.7%slopeefficiencywheninputenergyis900mW.ThebeamqualityfactorM2≈1.1.Thegreenlightof532nmisobtainedinfrequencydoublingoperation.ThelaserispassivelyQ-switchedbyusingCr4+:LuAGassaturableabsorber.Thepulsewidthis170nsatrepetitivefrequencyof15kHZ.
简介:摘要目的探究在根管内充填材料的清除方面掺钕钇铝石榴石(NdYAG)激光的效果。方法选取2017年1月—2018年1月我院口腔科拔除的尚未进行根管治疗的上颌中切牙30颗,将之随机均分为研究组和对照组,两组各15颗,研究组通过NdYAG激光清除充填材料,对照组则通过ProtaperD3进行。结果研究组在充填材料清除情况以及温度升高情况方面均显著高于对照组,两组数据差异显著(P<0.05)。结论NdYAG激光能够对根管内的充填材料进行良好的清除,在进行清除时会出现根管壁温度升高的情况,但出于牙周的忍受范围之内,具有理想的清除效果,可以在临床上进行广泛的推广和应用。
简介:Anewendophyticantagonisticfungus,ChaetomiumspiraleND35fromPopulustomentosa,wasreported.Thebio-controltrialsofC.spiraleND35againsttheValsaCankerofapplewerepreliminarilyinvestigated.TheresultsofdualcultureonPDAplateshowedthatC.spiraleND35wascapableofstrongantagonismagainstValsaceratosperma,andforinhibitingthemycelialgrowthofV.ceratosperma,.thecrudeextractofliquidcultureofcornsteeppowderbrothwasmoreeffectivethanthatoneofmaltextractbroth(MEB).Theresultsofbio-controlingreenhouseandfieldindicatedthatthediseaseincidenceofappletreetreatedwithC.spiraleND35waslowersignificantlythanthattreatedbyothermethods.There-isolationexperimentsuggestedthatC.spiraleND35couldcolonizeinstemsandbranchesofappletreessuccessfully,andtheND35colonizationrateofthetreatmentwithsolidwheatbranculturewashigherthanthatofcornsteeppowderbroth,butthefieldexperimentresultthecontroleffectofliquidcultureofC.spiraleND35wasbetterthanthatofsolidculture.
简介:Ahigh-repetitionratemasteroscillatorpoweramplifierpumpedwithlaserdiodes(LDs)isreported.Aninjectionseedingsingle-frequencyelectro-opticalQ-switchedNd:YAGlaserisusedasanoscillator,andaconductivelycooledNd:YAGzigzagslabwithabounce-pumpedarchitectureisutilizedasapoweramplifier.Pulseenergiesofover800mJat1064nmand400mJat532nm,correspondingtoaveragepowersof200and100W,respectively,areachievedwitha12.6-nspulsewidthat250Hz.Outputfrequencyfluctuationsandsingle-frequencyoperationarefurthermonitored.Experimentalresultsrevealthattheproposedsystem,whichfeaturesasingle-passamplifiedconfiguration,isapromisingdesignforspace-basedapplications.