简介：Thesolubilityofferroalloyedneodymiuminmoltensaltcontainingneodymiumtrichlorideandthede-pendenceofsolubilityontemperatureandcompositionofthemeltaredeterminedbymeansofelectrochemicalmethod.Thedataobtainedareingoodagreementwithresultofchemicalanalysisofthequenchedmoltensaltsamples.

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简介：ThisworkpresentsabriefintroductiononthreekindsofnewlydevelopedNd3＋-dopedlaserglassesinShanghaiInstituteofOpticsandFineMechanics（SIOM）,China.TwoNd3＋-dopedphosphateglasseswithlowerthermalexpansioncoefficientandthermalshockresistance4timeshigherthanthatofN31glassaredevelopedforlaserprocessing.Nd：SilicateandNd：Aluminateglasseswithpeakemissionwavelengthat1061and1065nm,effectiveemissionbandwidthof34and50nm,respectively,aredevelopedforExawatt-classlasersystemapplication.Fluorophosphateglasseswithlownonlinearrefractiveindex（n2=0.6-0.86）andlongfluorescencelifetime（430-510μs）areinvestigatedforthepurposeofdecreasingBintegralinhigh-powerlasersystem.Thepropertiesofalltheseglassesarepresentedandcomparedwiththoseofcommercialneodymiumlaserglasses.

简介：Thecomplexofneodymiumchloridelowerhydratewithdiethylammoniumdiethyldithiocarbamate(D-DDC)wassynthesizedconvenientlyinabsolutealcoholanddryN2atmosphere.ThetitlecomplexwasidentifiedasEt2NH2[Nd(S2CNEt2)4]bychemicalandelementalanalysesandthebondingcharacteristicsofwhichwascharacterizedbyIR.TheenthalpiesofsolutionofneodymiumchloridehydrateandD-DDCinabsolutealcoholat298.15Kandtheenthalpieschangeofliquid-phasereactionofformationforEt2NH2[Nd(S2CNEt2)4]atdifferenttemperaturesweredeterminedbymicrocalorimetry.Onthebasisofexperimentalandcalculatedresults,threethermodynamicparameters(theactivationenthalpy,theactivationentropyandtheactivationfreeenergy),therateconstantandthreekineticparameters(theapparentactivationenergy,thepre-exponentialconstantandthereactionorder)ofliquid-phasereactionofformationwereobtained.Theenthalpychangeofthesolid-phasetitlereactionat298.15Kwascalculatedbyathermochemicalcycle.

简介：DistributionandaccumulationofNd,anditseffectonsecretionofprogesteroneinmicewerestudiedusingradioisotopetracer(147Nd)technique.Followingsingleintraperitonealadministrationofneodymiumtracedwith147Ndatadoseof200mg*kg-1,unevendistributionoftheradioactiveNdoccurredinvarioustissuesandorgans.Muchamountof147Ndaccumulatesinthebone,andtheresidueincreaseswiththelapseoftime.Someamountofradioactivitywasalsodetectedineyes,bloodandbrain,buttheaccumulationdecreasedwiththetimeduetoexcretionandre-distributioninmice.Incomparisonwithcontrols,concentrationofprogesteroneisfoundtobesignificantlylowerintheserumofadministeredmice,indicatingasignificantlyinhibitoryeffectofNdonsecretionofprogesterone.

简介：Rareearths(REs)areofvitalimportanceforthedevelopmentofnewmaterialsandgreenenergy.Magnesiumbicarbonateisoneofthemostrecyclableandenvironmental-friendlyprecipitantforREsrecoveryfromleachingsolutions.Nd2(CO3)3hasdifficultiesinindustrialproduction.Sointhisstudy,theprecipitationofneodymiumfromchloridesolutionbymagnesiumbicarbonateareinvestigated.Theeffectsoffeedingmethod,[HCO3-]/[Nd3+]moleratio,feedingspeedandreactiontemperatureonyieldandimpurity(magnesia)contentaresystematicallystudied.Resultsshowthattheimpurity(magnesia)contentdecreasesto0.010wt%withayieldapproachingto100%obtainedundertheconditionsof[HCO3-]/[Nd3+]=3.00byparallelflowadditionat50℃.Themajorimpurity(magnesia)inrareearthcarbonatesmainlypresentsintheformofphysicalabsorption,whichcanbeeasilyremovedbyscrubbing.Therefore,itoffersapromisinggreenprocessthatusesmagnesiumbicarbonatetoproduceneodymiumcarbonateduetoitscyclingofcarbondioxide,magnesiumsaltandwastewater.

简介：用硝酸盐先锋，为做钕的钇铝石榴石(钇铝柘榴石)的准备的一个新奇弄干水花的帮助柠檬酸盐胶化过程阶段被开发。单相的多晶的钇铝柘榴石的合成在象800一样低的温度被完成

简介：Thecoordinationpolymer,(Nd(H2O)5)2(2,6-AQDS)3·2H2Owhere2,6-AQDS=2,6-anthraquinonedisulfonate,hasbeensynthesisedviaahydrothermalroute.Structurally,itconsistsoflayersofmonomericNdpolyhedrawhicharelinkedby2,6-AQDSanionsformingapolymeric,three-dimensionalnetwork.EachNdatomisninecoordinate,bondingtofivewatermoleculesandtofouroxygenatomsfromfour2,6-AQDSanionswhichinturnpillarthelayersbybridgingtwoNdatomsinonelayer,andcoordinatingtoasingleNdintheother.

简介：Nd:钇铝柘榴石先锋粉末被同类的降水，和Nd综合:钇铝柘榴石透明陶艺被真空sintering为5h在1700°C作好准备。陶器的材料被轻发射度和地排放枪环境扫描显微镜描绘。用统计和立方米科学理论，学习在在轻发射度和立体声之间的量的关系上被执行在三维的欧几里德几何学的空格的逻辑参数。这被发现Nd的发射度:有在厚度的1公里的钇铝柘榴石分别地在可见、在红外线附近的波长是大约45%和58%。发射度线性地与增加相等的范围直径增加并且当相等的范围直径是20μm时，到达单个水晶的理论价值。有每统一谷物和分离谷物的体积增加吝啬的特定的区域的发射度减少，和有增加的发射度减少在Nd意味着谷物的免费距离:钇铝柘榴石陶艺。

简介：AIM:Tocomparesurgicalpeelingandaspirationandneodymiumyttriumgarnetlasercapsulotomyforpearlformofposteriorcapsuleopacification(PCO).METHODS:Aprospective,randomized,doubleblind,studywasdoneatRotaryEyeHospital,Maranda,Palampur,India,SantoshMedicalCollegeHospital,Ghaziabad,IndiaandLaserEyeClinic,NoidaIndia.ConsecutivepatientswithpearlformofPCOfollowingsurgery,phacoemulsification,manualsmallincisioncataractsurgeryandconventionalextracapsularcataractextraction(ECCE)foragerelatedcataract,wererandomizedtohavepeelingandaspirationorneodymiumyttriumgarnetlasercapsulotomy.Correcteddistancevisualacuity(CDVA),intra-operativeandpostoperativecomplicationswerecompared.RESULTS:Atotalof634patientsparticipatedinthestudy,and314(49.5%)patientswererandomizedtosurgicalpeelingandaspirationgroupand320(50.5%)totheNd:YAGlasergroup.Themeanpre-procedurallogMARCDVAinpeelingandneodymium:yttrium-aluminium-garnet(Nd:YAG)lasergroupwas0.80±0.25and0.86±0.22,respectively.ThemeanfinalCDVAinpeelinggroup(0.22±0.23)wascomparabletoNd:YAGgroup(0.24±0.28;t-test,P=0.240).Therewasasignificantimprovementinvisionafterboththeprocedures(P<0.001).AslightlyhigherpercentageofpatientsinNd:YAGlasergroup(283/88.3%)thaninpeelinggroup(262/83.4%)hadaCDVAof0.5(20/63)orbetterat9mo(P<0.001).Onthecontrary,patientshavingCDVAworsethan1.00(20/200)wasalsosignificantlyhigherinNd:YAGlasergroupascomparedtopeelinggroup(25/7.7%vs15/4.7%,respectively).OnapplicationofANCOVA,therewaslessthan0.001%riskthatPCOthicknessandtotallaserenergyhadnoeffectonrateofcomplicationsinNd:YAGlasergroupandlessthan0.001%riskthatPCOthicknesshadnoeffectoncomplicationsinpeelinggrouprespectively.SumofsquareanalysissuggeststhatintheNd:YAGlasergroup,thickPCOhadastrongerimpactoncomplications(Fischertestprobability,Pr<0.0001)

简介：Theprocessingmethodappliedtothesidesurfaceisdifferentfromthemethodappliedtothelightpasssurfaceinneodymiumphosphateglass(Nd:glass),andthussubsurfacedefectsremainafterprocessing.ThesubsurfacedefectsinthesidesurfaceinfluencethegainuniformityofNd:glass,whichisakeyfactortoevaluatetheperformanceofamplifiers.Thescatteringcharacteristicsofsidesubsurfacedefectsweresimulatedbyfinitedifferencetimedomain(FDTD)Solutionssoftware.Thescatteringpowersoftheglassfabricatedbyacomputernumericalcontrol(CNC)machinewithoutcladdingweretestedatdifferentincidentangles.Thetrendofthecurvewassimilartothesimulatedresult,whilethesmallestpointwasdifferentwiththecomplextruemorphology.Thesimulationshowedthattheequivalentresidualreflectivityofthecladdingglasscanbemorethan0.1%whenthenumberofdefectsinasinglegriddingisgreaterthan50.

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简介：LargeapertureNd:phosphatelaserglassisakeyopticalelementforaninertialconfinementfusion(ICF)facility.N31,onetypeofneodymiumdopedphosphateglasses,wasdevelopedforhighpeakpowerlaserfacilityapplicationsinChina.ThecompositionandmainpropertiesofN31glassaregiven,togetherwiththoseofLHG-8,LG-770,andKGSS-0180Nd:phosphatelaserglasses,fromHoyaandSchott,andfromRussia.Thetechnologiesofpotmelting,continuousmelting,andedgecladdingoflargesizeN31phosphatelaserglassarebrieflydescribed.ThesmallsignalgainprofilesofN31glassslabsfrombothpotmeltingandcontinuousmeltingatvariousvaluesofthepumpingenergyofthexenonlamparepresented.N31glassischaracterizedbyastimulatedemissioncrosssectionof3.8×10-20cm2at1053nm,anabsorptioncoefficientof0.10–0.15%cm-1atlaserwavelength,smallresidualstressaroundtheinterfacebetweenthecladdingglassandthelaserglass,opticalhomogeneityof～2×10-6ina400mmaperture,andlaserdamagethresholdlargerthan42J/cm2fora3nspulsewidthat1064nmwavelength.

简介：Weproduceamaximum1.45Wlaseroutputat1064nmusinganeodymium-dopedsilicateglassfiberthathasarectangularcorewithdimensionsof~6.3μm×31.5μm.Themeasureddivergenceanglesoftheoutputlaserintwodimensionsare3.22°and1.76°,respectively.Theoutputpowerisstableandlimitedonlybytheavailablepumppower.

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简介：在这糊REE集中和Sr和从Furong矿石的Bailashui锡矿床的荧石的Nd同位素组成回答的在场的作者，南部的湖南省。结果证明在荧石的REE的全部的数量通常是低的，从有在学习区域的Qitianling花岗石的类似于那些的使球粒状陨石正常化的REE分发模式的0.705～8.785μg/g，与显著否定Eu异例由LREE丰富模式描绘了。荧石在范围以内在Sr同位素组成变化0.70830.7091，价值比在这个区域的主人碳酸盐岩石的那些是比花岗石并且高的那些低的。ɛ荧石的Nd(t)价值在−9.4和+10.3之间变化，两个都揭示那外壳--并且披风来源材料涉及形成矿石的热水的液体。在这张矿床上与以前的研究结合了，Bailashui锡矿床是速度集合并且仔细空间地在这个区域与花岗石的岩浆酌联系。热水的荧石是在热水的液体和海洋的碳酸盐摇的花岗石的magmatic之间的液体/岩石相互作用的产品。而在形成矿石的液体的Sr主要来自热水的液体和海洋的碳酸盐摇的花岗石的magmatic，在形成矿石的液体的REE和F从花岗石被导出，尽管在Sr同位素组成的变化不能被这二结束成员的简单混合物解释。证据证明形成矿石的液体具有外壳披风的混合起源，但是液体可能是，这不完全地一致，这可以被不同来源的液体的不同类的混合引起。