简介：Stochasticfrontierproductionfunctionapproachisadopted,93farmersampleshavebeencollected,pureefficiency,technicalefficiency,technicalchangeandscaleefficiencyandtheinstitutionalcontributionhavebeencalculated.Theresultsindicatedthatincreasingproductivityisthesolemeasurementtoreducepoverty,institutionandtechnicalchangearethetwokeyfactors.Therefore,stableinstitution,improvingtechnicalchangesarerequired.Atpresent,itisurgenttomaketechnicalprogre...

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简介：GansuRareEarthCorporationisoneofthelargestrareearthproducersinChina.Itsannualpro-ductioncapacityofrareearthchloridehasreached18000tonREObytheendof1992,rankingthefirstinChinaandbeingthesecondintheworld(onlynexttoMolycorp.,USA).Thecorporation’soriginalannualcapacityofrareearthchloridewas12000tonREO.Inmeeting

简介：TheconfigurationmanagementtoolCMThasbeenusedsinceseveralyearsnow,andinquitsdifferentprojects(Virgo,GLAST,LHCb,Auger,Atlas,etc).Thefeaturesofthetoolhavecontinuouslyevolvedaccordingtothegrowingneedsofthedevelopersandtofollowtheincreasingcomplexityofthesoftwarebasesithastoservice,Howevertheoriginalconcepts:readability,simplicity,flexibility,completenesshavebeenpreservedandthesyntanofthecoreelementofthesystem-therequirementsfile-hasbeenalwaysketpbackwardcompatible.MoreandmoreprojectspecificconventionsandneedshavefounrtheirexpressionusingCMT,andsimultaneouslythefocuesetoCMTfeatureshaveevolvedaccordingly,progressivelyraisingimportancetowardslanguagecustomisation,newdocumentgeneratorsproductionofpatterns,packageorganizationandsoftwaredistribution.ThebasicpropertiesoftheCMTtoolkitwillbeshortlypresentedbutthefocusofthediscussionwillbesettotheCMTtoolkitwillbeshortlypresentedbutthefocusofthediscussionwillbesettoptheserecentevolutions,throughtsometypicalexamplesobtainedfromactualprojectsshowingspecificdefinitionsorconventions.Thediscussionisthenextendedtowardsthegeneralizedquestionofthescalabilityinsoftwareproductionandmanagementinthecontextofe.g.Gridtechnologies.TheimpactofusinggenericandhighleveltoolssuchasCMT,whichalreadyoffersseveralsolutions,RPMortheGridtechnologies,inthisrespectwillbepresented.Inparticular,theroleofformalspecificationsforthesoftwareconfigurationappearstobecriticalforquerymechanismsrequiredinmanagementoperationsorinremoteactions.

简介：ＯＮＢＡＨＡＤＵＲＡＳＹＭＰＴＯＴＩＣＥＦＦＩＣＩＥＮＣＹＩＮＡＳＥＭＩＰＡＲＡＭＥＴＲＩＣＲＥＧＲＥＳＳＩＯＮＭＯＤＥＬ￥ＬＩＡＮＧＨｕａ；ＣＨＥＮＧＰｉｎｇ（ＩｎｓｔｉｔｕｔｅｏｆＳｙｓｔｅｍｓＳｃｉｅｎｃｅ，ＡｃｏｄｅｍｉａＳｉｎｉｃａ，Ｂｅｉ...

简介：器官的轻射出的设备(OLED)的外部量效率(ext)的计算理论上被介绍。基本想法是由计算能在逃跑锥上通过最高的表面和平均发射度逃跑的产生的光的部分获得ext。在计算期间，干扰，吸收和多重思考的效果被忽视。然后，典型8-tris-hydroxyquinoline铝(Alq3)的结果把OLED基于平面玻璃底层被获得。并且一两次，ext的增加能被在底层表面上与antireflection涂层(SiO2)使用high-index-glass底层完成。

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简介：结合的基于聚合物的太阳能电池是寻找在最后一十年的持续、可更新的精力来源的最有希望的设备之一。它是最年轻的领域无机的太阳能电池研究并且目前也当然是最快的成长的。Inaddition，为基于聚合物的太阳能电池与的关键因素高效率是发明新材料。器官的太阳能电池在应用在制造和灵活性由于它的低费用吸引了重要研究和商业兴趣。然而，他们受不了相对低的变换效率。高效率聚合物太阳能电池技术的意义和概念的摘要被介绍。

简介：TheauthorsgiveMLEθ1MLofθ1inthemodelY=θ1+g(T)-σ,thenconsiderBahadurasymptoticefficiencyofθ1ML,whereTandεareindependent,gisunknown,ε～φ(-)isknownwithmean0andvarianceσ^2.

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简介：DisclosedisamethodofpreparinghypophosphorousacidcomprisingcontactinganinsolubleanodewithanaqueoussolutionofhypophosphiteanionsandapplyingadirectcurrentthroughtheinsolubleanodetoacathodeinelectricalcontactwiththeequeoussolutiontogenerateH^+ionsintheaqueoussolutiontherebyformingahypophosphorousacidsolution.Theprocessissimple,lowcostandhighefficient,whichcanbetiedintoanexistingprocessforproducingsodiumhypophosphitewhereintheproductofsodiumhypophosphiteprocessisusedasastartingmaterialinthehypop[hosphorousacidprocess.

简介：Thispaperreviewsmainproblemsofdomesticrefractories,intermsofthestructure,principle,performanceandnewtheoryofautomaticcontrol,suchasmoderncontrol,fuzzycontrol,artificialneuralnetwork,andexpertsystem.AdvancedequipmentusedinRHIDalianPlantisintroduced,aswellasqualitycontrolandguaranteeinEurope.SometopicstoupgradeChineserefractoryindustryarediscussed.

简介：Aftertwoyears’construction,instal-lationandadjustment,aproductionlinewithadesignedcapacityofprocessing400tonsREoxidesperannumhasbeenputintooperationintheZhuJiangRe-fineryPlantinSept.1989.Theprojectusedaninvestmentof30millionyuan,whichwasjointlyinvestedbytheZhuJiangRefineryPlant,theGu-angDongInformation&TechniqueDeve-lopmentCompanyandtheYueHuaNonfer-rousMetalsAssociatedExploitationCom-

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简介：InaccordancewiththecharacteristicsofChina’smineralresources,Chineseresearchershavedevelopedthetitlenewconductorthatreachesinter-nationalstandards.TheRE-Alconductorhasbetterelectricalconductivity,highertensilestrength,bet-terductility,strongerresistancetowearingandcor-

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简介：Thereare32households,containingatotalof189persons,livinginKesivillage,JiedexiuTowninGunggarCounty,ShannanPrefecture.Qingke,akindofbarley,isthemaingrainplantforpeoplelivingontheQinghai-TibetanPlateau.Withalongplantinghistory,itiswidespreadinTibet,accountingformorethanhalfofTibet'sgrainplanting,andeven80percentinsomehighaltitudeandcoldareas.