简介：Multiwalled碳nanotubes(CNT)由用羰基的铝层是涂的有铝hexacarbonyl的一位先锋的热分解过程。瞬间涂的CNT(Mo-CNTs)被增加进铜粉末借助于火花血浆sintering跟随的机械milling制作Mo-CNT/Cucomposites。当他们的内容是2.5vol.%7.5vol.%时，Mo-CNTs是在Cu矩阵的一致分散，当一些Mo-CNT簇清楚地在混合在10.0vol.%15.0vol.%Mo-CNTs的增加被观察时。Mo-CNT/Cucomposites的机械、电、热的性质被描绘，并且结果证明张力的力量和坚硬分别地比CNT免费的标本的那些高2.0和2.2倍。而且，Mo-CNT/Cucomposites展出了提高的热传导性但是劣等的电的电导率与sintered相比纯Cu。uncoatedCNT/Cucomposites被类似的过程制作，并且CNT/Cucomposites的测量张力的力量，坚硬，热传导性，和电的电导率是比Mo-CNT/Cucomposites的那些低的。

简介：

简介：为从氯化铜溶液再循环铜的方法被开发。这个过程由铜，纯化和粒子尺寸减小的抽取组成。在第一步，减少的金属碎片被加到废物迷住的酸的氯化铜在聚氯联苯工业生产了获得铜粉。作文分析证明这粉末包含了象Fe，Ni，和水那样的杂质。那么，弄干并且纯化被使用微波和一个离心分离器执行。从而，铜粉有纯净比99%高、球形在形态学的形式。铜粉尺寸被球milling减少。

简介：

简介：ＣｏｐｐｅｒｄｅｐｏｓｉｔｉｓｏｎｅｏｆｔｈｅｍｏｓｔｉｍｐｏｒｔａｎｔａｎｄｗｉｄｅｓｐｒｅａｄｏｒｅｓｉｎＣｈｉｎａ．ＴｈｅｃｏｐｐｅｒｍｅｔａｌｏｇｅｎｙｉｎＣｈｉｎａｒｅｖｅａｌｓａｃｏｍｐｌｉｃａｔｅｄｔｅｃｔｏｎｉｃｅｖｏｌｕｔｉｏｎｈｉ...

简介：ＣｈｉｎａＤｅｖｅｌｏｐｓＣｏｐｐｅｒＢｅａｄｓＩＵＤＡｎｅｗｔｙｐｅｏｆｉｎｔｒａ－ｕｔｅｒｉｎｅｄｅｖｉｃｅ（ＩＵＤ），ＣｏｐｐｅｒＢｅａｄｓＩＵＤ，ｈａｓｂｅｅｎｄｅｖｅｌｏｐｅｄｒｅｃｅｎｔｌｙｉｎＣｈｉｎａ．Ｉｔｈａｓｂｅｅｎａｐｐｒｏｖｅ...

简介：

简介：IntroductionInAnatolia,thebirthandthedevelopmentofmetallurgyintervenedbetweenthe9thand3rdmillenniumsaswellastestifythemoreandmorefrequentapparitionsofmetalsartefactsintheinventoryofthearcheologicalobjectsofthisperiod.

简介：Datingofmetallicoredepositshasbeenoneoftheproblemsconcernedwithbyoregeologistsformanyyears.TheestablishmentoftheRe-OsIsotopeLaboratoryattheInstituteofRockandMineralAnalysis,ChineseAcademyofGeologicalSciences,hasprovideduswithanewtechniquetocarryoutgeochronologicalstudiesofmolybdenumores.AsoneofthemostimportantRe-bearingminerals,molybdenitecontainsalmostnocommonosmium,but^187Oswasderivedcompletelyfromdecayof^187Re,with^187OscontentasthefunctionofRecontentinthemineral.AnID-ICP-MStechniquehasbeenusedinthisstudy,andRe-Osisotopicagesofseverallargemolybdenumdepositsofdiffer-enttypesfromtheEastQinlingmolybdenumbelthavebeendetermined.ItisindicatedthattheHuanglongpucarbonatitevein-typemolybdenum-(lead)deposithasaRe-OsagecorrespondingtoIndosinian,whiletherestporphyry-typemolybdenumdepositsandporphyry-skarn-typemolybdenum-(tungsten)depositshaveRe-OsagescorrespondingtoYenshanian.

简介：Thesixmultiimidazolecopper(Ⅰ)complexesareutilizedtomimictyrosinase.Themainproductis3,5-di-t-butylcatecholfromo-hydroxylationofthesubstrate2,4-di-t-butylphenol.Thehighestyieldofcatecholisupto82.2%andselectivity94.8%by[Cu(I)_(3b)(MeCN)_2](ClO_4)_2andO_2undermildconditions,whicharefoundtobemoreefficientthanthatalreadyreported.

简介：

简介：Thisresearchreportsthepreparationandcharacterizationofcoppernanoparticlesmodifiedbydidecylbenzenesulfonate(DBS),TheCunanoparticles'sizewasdeterminedtobe40nmbytransmissionelectronmicroscope(TEM).TheX-rayphotoelectronspectrometry(XPS)resultsshowthatthereareinteractionsbetweenthecoppernanoparticlesandDBSfunctiongroup.Thenonlinearopticalpropertieswerestudiedbythefour-wavemixingmethod.Thevalueofx^(3)/α0wasfoundtobe6.9×10^-11esucm.

简介：Theso-called“Yangtze-type”copperdepositsinclude:（1）Cu-bearingmassivepyritebed,(2)Cu-bearingskarnandmagnetite-typeoredeposits,withreplacementCu-vein-typedepositsnearthemetasomaticzone,and(3)mineralizedintrusivebodiesandbrecciapipes,someofwhichareknownasporphyrycopperores(e.g.Chengmenshan).ThistypeoforedepositsisatypicalexampletoverifythepolygenesisofinostofthedepositsinChina,ashasbeenpromotedbyProf.TuGuangchiinviewofthepolycyclicdevelopmentofthegeologicalhistoryinChina.Thispaperiscon-cemedwithonesub-typeofsuchdeposits.

简介：Theuseofmoreandmoreelectronproductsrequiresinteriorwoodproductstohavetheperformanceofelectromagneticshielding.Oneofthewaystorealizeitistointroducethechemicalplatingwhichhasalreadybeendevelopedinelectronindustryintowoodprocessing.Thepaperclarifiesthemechanismofelectrolesscopperandgoldplatinganditsapplicationtowood.Itemphasizesthedevelopmentandtechnologyofelectrolesscopperandgoldplatingonwood.Meanwhile,itpointsoutthatitishighlyfeasibletotakethistechnologyintoeffect.

简介：HydrolysisofDNAisanimportantenzymaticreaction,butitisexceedinglydifficulttomimicinthelaboratorybecauseofthestabilityofhydrolysisofDNA.Inthispaper,thecleavageactivityofcomplexesformedbetweenCu(Ⅱ)andfourdifferentaminoacidoraminoacidmethylesteronDNAisstudiedbygelelec-trophoresis.ItisfoundthatDNAcouldbecleavedbyCu(Ⅱ)-L-HisandCu(Ⅱ)-L-Hismethylestercomplexesandtheefficiencyofcleavageislargelydependentonthemetalion-to-ligandratio.FurtherexperimentsshowthatthecleavageofDNAmediatedbyCu(Ⅱ)-L-HiscomplexesoccursviaahydrolyticmechanismandtheactivechemicalspeciesthataffectsDNAcleavageisproposedtobeMI2H+andML2H22+.

简介：AccordingtoAWPAE11-2006standard,copperfixationratesofseveralcopper-basedformulations,suchasammoniacalcopper,aminecopper,andammoniacal-ethanolaminecopper,aswellasalkalinecopperquaternary(ACQ),weretestedandcomparedinthispaper.Andthefixationratesoftebuconazole(TEB)andpropiconazole(PPZ)inseveralformulations,suchascopperazole,emulsifiedtypeandsolventtype,werealsocompared.Thedeterminationofcoppercontentintheleachatewasanalyzedbyatomicabsorptionspectrom...

简介：

简介：Inordertomeetthedemandsofservicelifeandthesyntheticalperformance/priceratioofstainlesssteelinthesolarwaterheaterindustry,thelowmolybdenumultra-pureferriticstainlesssteel(FSS)B445J1MwasdevelopedatBaosteel.Inthisstudy,comparativestudieswerecarriedoutonthemechanicalproperties,theformabilityandthecorrosionresistanceofB445J1M,304and444,andtheadvantagesandapplicationfieldsofB445J1Mweresummarized.

简介：效果形态学，水晶结构和composites由反应milling准备了的Mg/C的氢吸着性质上的瞬间被学习。传播电子显微镜(TEM)与瞬间的增加准备的那Mg/Ccomposites有粒子尺寸的nanoscale关于在3以后的20-120nm的观察表演milling的h不到1MPaH2。MgH2有四面的水晶组织支配在里面有倾斜的六角形的棱柱的几何形状的材料。从X光检查衍射(XRD)和内容学习的氢，瞬间和微晶的碳在支持加氢率上有synergistic效果在里面反应milling过程。从微分扫描calorimetric(DSC)研究，除氢作用达到顶点有瞬间的Mg/C材料的温度被降低到299-340？

简介：高度有效的底部阳极为高效的最高射出的器官的轻射出的设备(OLED)是必要的。在这份报纸，基于Ag的最高射出的OLED被调查。Ag在所有金属之中为可见的光有最高的反射率，还它的洞注射性质不为最高射出的OLED的阳极是理想的。设备的表演显著地在Ag的表面作为阳极缓冲区层用铝氧化物被改进。由介绍铝氧化物，从进最高射出的OLED的Ag阳极的洞注射大部分被提高，相当高的反射率保留了。