简介：据德国之声网站报道，中国承建的中缅天然气管道经过4年建设于6月3日竣工。

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简介：FluorescencespectraofSm2+andEu2+→Sm2+energytransferwerestudiedinSrB4O7.Thereappearsonlyfluorescencefrom5D0transitionofSm2+at77K.Thevibroniclinesassociatedwith5D0→7F0transitionwereobserved.Thethermalpopulationtoupperstatesof5D1and4f5dlevelsfrom5D0givesriseto5D1→7FJand5d→4fradiativetransitionsofSin2+athighertemperature.

简介：文章研究了对Mg-9Gd-4Y-0．6Zr合金在时效过程中的微观组织。在225℃时效初期硬度缓慢上升，之后硬度急剧上升，24h出现了明显的时效硬化峰，然后硬度开始下降。微观结构的分析结果表明，在初期（2h）产生了大量弥散分布的具有DO19结构的β″，而在峰值时（24h）出现具有bco的β′，在持续时效（384h）时出现亚稳相β1，而在后来的长时间时效（1000h）时出现既在原位转变的平衡相β。

简介：Sr1.995–1.5xGdxSiO4:0.005Eu2+phosphorserieswithx=0–0.08molfornear-ultravioletwhitelight-emittingdiodes(NUVw-LEDs)weresynthesizedviasolid-statereactionmethod.XRDprofilepatternandrefinementresultsdemonstratedthatdopingGd3+ionsresultedinthephasetransformation(β-Sr2SiO4→α’-Sr2SiO4).Thephotoluminescencespectrumofthesamplewithx=0moldisplayedtwoemissionpeakscenteredat470and525nm.Thetwo-peakspectrabecameone-peakspectrawiththeGd3+concentrationincreasing.Actually,thefittingresultsdemonstratedthattheone-peakspectrawerestillcomposedoftwosingleemissionspectra.ThephotoluminescenceintensitywasimprovedandtheCIEchromaticitycoordinateswereadjustedviadopingGd3+.

简介：工信部日前对外发布，2016年，规模以上工业增加值能耗同比下降5．47％、单位工业增加值用水量同比下降6％，节能环保产业同比增长10％，圆满完成了年度目标任务。

简介：Organicsubstancesuchassolventandresin'seffectonluminescentcapabilityofSrAl2O4:Eu2+,Dy3+phosphorwasstudied.Someorganicsolventsandresinswereselectedforexperimentation.TheresultsindicatethatthoseorganicsolventswillnothavenegativeeffectontheappliedcapabilityofSrAl2O4:Eu2+,Dy3+phosphor.Adoptingtheorganicresinsandcoveringmethod,theafterglowluminanceofSrAl2O4:Eu2+,Dy3+phosphorwasincreasedby85.01%and82.51%.

简介：Er3+-Tm3+-Yb3+tri-dopedBaMoO4phosphorsweresynthesizedbyco-precipitationtechniqueandcharacterizedbyX-raydiffractionanalysis,absorptionstudyandfieldemissionscanningelectronmicroscopyanalysis.Upconversionaswellasdownconversionluminescencestudieswereperformedbyusingnearinfrared（980nm）andultraviolet（380nm）excitations.Energyleveldiagram,pumppowerdependenceandcolourcoordinatestudywereutilizedtodescribethemulticolorupconversionemissionproperties.Undersingle980nmdiodelaserexcitationthedualmodesensingbehaviourisrealizedviaStarksublevelsandthermallycoupledenergylevelsoftheTm3+andEr3+ionsinthepreparedtri-dopedphosphors.AcomparativefluorescenceintensityratioanalysisforintegratedemissionintensitiesarisingfromtheStarksublevels{1G4（a）and1G4（b）}andthermallycoupledenergylevels{2H11/2and4S3/2}oftheTm3+andEr3+ions,respectivelywascarriedoutinthepreparedtri-dopedBaMoO4phosphors.ThemaximumsensitivityforthermallycoupledenergylevelsoftheEr3+andStarksublevelsoftheTm3+ionwasreported.Thedevelopedphosphorscouldbeusefulinthedisplaydevicesandopticalthermometricapplications.

简介：RE-dopedNi-basedcatalystswerepreparedbysol-gelmethod.ThesecatalystswereappliedtothereactionofCO2reformingCH4tosyngas.ThestudiesrevealthatRE-doped(RE=La,Ce,Sm,Yb)Ni-basedcatalystsshowhighercatalyticactivitythanundopedNi-basedcatalyst,andwiththeincreasingofRE-dopedquantity,thecatalyticactivityofcatalystsexhibitsregularchanges.WhenRE-dopedquantityis0.2%(molarratio),thecatalystsshowthebestcatalyticactivity.

简介：卢本巴希8月30日消息：刚果国家矿业公司表示，2年内该公司将把铜产量提升一倍至4万吨左右。预计2006年该公司的铜产量将提升至2．2万吨左右，此前几年产量均下降。公司表示：“产量正处于上升趋势。我们希望在两年生产3万吨，甚至可能达到4万吨。”www.cnitdc.com

简介：在Mn3O4生产中用欧姆龙C200H可编程序控制器控制生产工艺和设备，降低消耗，提高生产效率和产品质量

简介：ThestructureandhydridingperformanceofLa0.6Nd0.4Ni4.8Mn0.2Cux(x=0～0.4)alloyswereinvestigatedinordertodevelopsuitablematerialsformetalhydrideairconditioner.TheeffectofCuadditiononthecrystalstructure,equilibriumpressure,hydrogencapacityandhysteresisaswellashydrogenabsorption/desorptionkineticsweresystematicallystudiedbyusingthemeasurementofP-Cisotherms,X-raydiffractionandscanningelectronmicroscopy.AstheamountofCuincreases,theplateaupressureincreasesandhydrogenabsorption/desorptionkineticsisimproved,buttheeffectivehydrogenstoragecapacitydecreases.Itisshownthatvariationsinthebasalplaneparameteracanbeusedasanindicationfortheplateaupressurechanges.Withtheincreaseofparametera,theplateaupressuredecreases.ForLa0.6Nd0.4Ni4.8Mn0.2Cux(x=0～0.4)alloysthereisarelationshipbetweentheeffectivehydrogenstoragecapacitiesandtheratiosoftheirunitcellparameterscanda.Theeffectivehydrogenstoragecapacitydecreaseswithincreaseofa/c.

简介：有一致形态学的新奇红射出的K2(Ge,Si)F6:Mn4+黄磷被一起沉淀方法综合。纯K2有P636阶段>除P3m1空间组以外的mc空间组就被Si的加入在K2在房间温度的GeF6根据XRD描述。薄片状的显示出的SEM图象和为K2GeF6:Mn4+和K2(Ge,Si)F6:Mn4+黄磷分别地。光致发光刺激(PLE)和光致发光(PL)在K2GeF6:Mn4+和K2(Ge,Si)F6:Mn4+系统。并且K2有Si的GeF6:Mn4+显示出一座强壮的山峰。同时水晶的地包围Mn4+变化能在这个氟化物系统影响腐烂时间。带的设备的颜色范围基于K2(Ge,Si)F6:Mn4+和K2分别地，GeF6:Mn4+到达了多达94.58%NTSC(国家电视标准委员会)和94.386%NTSC那基于氮化物红黄磷比那高得多。在K2(Ge,Si)F6:Mn4+黄磷的所有这些原来的特征作为为改善灯光和常规白LEDs的显示质量的红黄磷为潜在的应用是合乎需要的。

简介：PolycrystallineGd2(MoO4)3:Dy3+phosphorshavebeensynthesizedbyhightemperaturesolid-statereactionmethod.ThephosphorswerecharacterizedwithX-raydiffractometer,thermogravimetricanalysisanddifferentscanningcalorimeter,scanningelectronmicroscopy,andphotoluminescencespectrofluorimeter.Severalpeaksat351,389,425,452,and472nmappearedinphotoluminescenceexcitationspectrum,whichmatchedwellwiththeemissionoftheultraviolet(UV)andblue-lightemittingdiode(LED)chips.Uponexcitationat389nmUVlight,intenseemissionscenteredat484,575and668nmwereattributedtothetransitionsof4F9/2→6H15/2,4F9/2→6H13/2and4F9/2→6H11/2ofDy3+,respectively.ThechromaticitycoordinatesandcorrelativecolortemperatureshavebeencalculatedandpresentedintheCommissionInternationaldeI'Eclairage(CIE)diagrams.TheresultsindicatedthatGd1.9(MoO4)3:Dy0.13+withCIEcoordinatesof(x=0.38,y=0.41)andthecorrelativecolortemperatureof4134KisapotentialcandidateforwhiteLEDs.

简介：铟生产废水中含锌砷镉杂质较高,且含有机物的酸性溶液。铟生产废水处理过程中,首先用纯碱中和废水,至pH值为8左右,大部分杂质沉入中和渣中;然后用硫酸亚铁和双氧水净化,废水达到国家工业排水一级标准。废水处理后进行了回用,实现了零排放,锌富集到中和渣,回收利用。处理过程没有废气产生,工序简单,安全环保。

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简介：(Y,Gd)BxV1-xO4-x:Eu3+phosphorswerepreparedbysolidstatereaction.Theredemissioncolorpurityof(Y,Gd)BxV1-xO4-x:Eu3+phosphorismuchbetterthanthatoftherecentwidely-usedcommercialredemittingphosphor(Y,Gd)BO3:Eu3+anditsrelativeemissionintensityis84%ofthecommercialphosphor(Y,Gd)BO3:Eu3+.Itisexpectedthat(Y,Gd)BxV1-xO4:Eu3+phosphorwillbeapromisingcandidateforPDP(plasmadisplaypanels)application.

简介：ThereactionofNdCl3withlithiummethylnaphthalenein1:2moleratioinTHFgeneratesblackpowder.Thepowderreactswithcyclooctatetraene（COT）inTHFtoformthetitlecomplex.[Li（THF）4Nd（C8H8）2]·2THFcrystallizesinthemonoclinicspacegroupP2/cwithunit-celldimensionsa=1.7858（7）nm,h=1.3243（4）nm,c=1.8086（6）nm.β=106.52（4）°,V=4.10nm3andDc=1.268g/cm3forZ=4.F（000）=1660,R=0.0774,Rn=0.0733.Thecomplexconsistsofdiscreteion-pairandtwoTHFmoleculesadduct.Intheanion,theneodymiumatomiscoordinatedbytwoCOTrings.ThestructureofthecationshowsthatthelithiumatomisattachedwithTHFmoleculesonly.

简介：Tobreakthroughthebottle-neckofquantumyieldinupconversion(UC)core-shellsystem,weelucidatedthattheenergytransferefficiencyincore-shellsystemhadanevidentcontributionfromthechargetransferofinterfacewithrelatedtotwofactors:(1)bandoffsetsand(2)bindingenergyareadensity.Thesetwovariablesweredeterminedbymaterialintrinsicpropertiesandcore-shellthicknessratio.Wefurtherunraveledthemechanismofnon-radiativeenergytransferbychargetransferinduceddipoleattheinterface,basedonaquasi-classicalderivationfromF?rstertyperesonantenergytransfer(FRET)model.Withstablebondingacrosstheinterface,thecontributionsonenergytransferinbothradiativeandnon-radiativeenergytransfershouldalsobeaccountedtogetherinAuzel'senergytransfer(ETU)modelincore-shellsystem.Basedonthediscussionaboutinterfacebonding,bandoffsets,andformationenergies,wefiguredoutthesignificanceofinterfacebondinginducedgapstates(IBIGS)thatplayedasignificantroleforinfluencingthechargetransferandradiativetypeenergytransfer.Theinterfacebandoffsetswereakeyfactorindominatingthenon-radiativeenergytransfer,whichwasalsocorrelatedtocore-shellthicknessratio.Wefoundthattheenergyareadensitywithrelatedtocore/shellthicknessratiofollowedthetrendofBoltzmansigmoidalgrowthfunction.Bythephysicaltrend,thisworkcontributedareferencehowthemulti-layeredcore-shellstructurewasformedstartingfromtheverybeginningwithinminimumsize.Aroutewaspavedtowardsasystematicstudyoftheinterfacetounveiltheenergytransfermechanismincore-shellsystems.

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