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  • 简介:Extractingrare-earthelementsfromcoalcouldsoonbeeconomicalinU.S.ExtractedfromthereportofUNIVERSITYPARK,Pa.TheU.S.couldsoondecreaseitsdependenceonimportingvaluablerare-earthelements,accordingtoateamofPennStateandU.S.DepartmentofEnergyresearcherswhofoundacost-effectiveandenvironmentallyfriendlywaytoextractthesemetalsfromcoalbyproducts.UsingbyproductsofcoalproductionfromtheNorthernAppalachianregionoftheU.S.,theteaminvestigatedwhetherachemicalprocesscalledionexchangecouldextractREEsinasafermannerthanotherextractionmethods.Resultsshowthationexchangeismoreenvironmentallyfriendlyandrequiresless

  • 标签: 技术 稀土元素 环境友好 成本效益 研究人员 大学园区
  • 简介:Premiereofcutting-edgecoolingapplianceusingrareearthmagneticrefrigerationtechnologyMagneticrefrigerationtechnologyhasattractedtheattentionoftheworldforitsadvantagesofhighefficiency,energyconservationandenvironmentalprotection.Asthebreakthroughmadeinmagneticrefrigerationmaterialsatroomtemperatureandmagneticrefrigeratorinrecentyears,moreandmorecountrieshavejoinedintheR&Dof

  • 标签: 磁制冷技术 制冷设备 磁致冷机 科研机构 商业化 稀土
  • 简介:DOEgrantaimedatimprovingprocesstoreducenuclearfuelwaste.An$800,000grantfromtheU.S.DepartmentofEnergywillallowPennStateresearcherstoinvestiga(teanewapproachforremovingrare-earthfissionproductsfromthemoltensaltbathswhereusednuclearfueliselectro-refinedtorecycleuraniumandminimizenuclearwaste.HojongKim,assistantprofessorofmaterialsscienceandengineeringatPennState,willusethegranttowardefficientrecoveryofrare-earthelementsusingliquidmetals.

  • 标签: IMPROVING PROCESS GRANT URANIUM and minimize
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  • 简介:HighqualitynaturalmeteoriticmagnetsuccessfullyproducedinashorttimeSource:websiteofTohokuUniversityResearchersfromTohokuUniversityinJapanhavesucceededinproducingacompletelyrare-earthfreehigh-qualityFeNimagnet.Theteam,ledbyProfessorAkihiroMakinoasprincipalinvestigatorissupportedbyaMEXT(MinistryofEducation,Culture,Sports,ScienceandTechnology,Japan)projectentitled,"Ultra-low

  • 标签: MAGNET entitled INVESTIGATOR producing FeNi INNOVATIVE
  • 简介:MSU-basedphysicistsstudiedcomplexmagnetisminarareearthcompoundDyGe3ordysprosiumgermanideisasilver-whiterareearthelementthatisnotveryoftenfoundintheEarthcrust.Itformsrefractoryoxidesthatarealmostinsolubleinwater.Duringthestudythescientistsappliedthepressureof8GPatoobtainpolycrystalsamplesofdysprosiumgermanideinametastablestatestateoflocalthermodynamicequilibriumcapableofchangingtoamorestablestateundercertainconditions.

  • 标签: MSU-based Earthcrust
  • 简介:RecvclingtheRareEarthMetalsofE-WasteRecyclingthevaluablerareearthmetalsfoundinadvancedelectronicsfromsmartphonestoplasmascreenTVshasbeenachallengeforbothmanufacturersandenvironmentalgroups.Yaleresearchers,though,havedevelopedatechnologythatcouldrecoverthesematerialsforreuse.DesireePlata,theJohnJ.LeeAssistantProfessorofChemicalandEnvironmentalEngineering,andMegan

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  • 简介:Near30yearsaftertheadoptionofthe1986UNDeclarationontheRighttoDevelopment,understandingofthisRightstilldiffersfromonepoliticalgrouptoanother.TheSouthstressesissuessuchasinequalitiesintheinternationalfinancialsystem,greaterparticipationofdevelopingcountriesinglobaldecision-makingoneconomicpolicy,andpromotingafairertraderegime.TheNorthpersistsonaptdomesticconditionsindevelopingcountriessuchasruleoflaw,goodgovernance,democracyandresponsibleeconomicmanagement.AndwhiletheNonAlignedMovementcallsforaninternationallegalstandardofabindingnature,theEuropeanUnionisopposedtosuchanupgradeoftheDeclaration.Infact,draftingaFrameworkConventionontheRighttoDevelopmentseemstobethebestoptionforaccommodatingtheconcernsofthedifferentpoliticalgroups,asitallowsforastep-by-stepapproach.Aframeworkconventionisatreatyunderinternationallaw:suchatreatyisopentoStates,andonceithasenteredintoforce,itisbindingonStatesthathaveexpressedconsent.ThepotentialaddedvalueofaFrameworkConventionontheRighttoDevelopmentistobalancethecurrenthumanrightsregimewithatreatythatgoesbeyondindividualStateresponsibilityandtakesinspirationfromprinciplesderivedfrominternationaldevelopmentefforts,suchasmutualaccountability,alignmentofpoliciesamongpartnercountries,andinclusivepartnerships.

  • 标签: RIGHTS to DEVELOPMENT CONVENTION on the
  • 简介:ThecoreissueforChinatransitiondevelopmentinthenext30yearsistoshiftfromthequantitygrowthmodeltothequalityimprovementmodel.Thepaperintroducestheresearchprogressinthreekeyareasofsustainabledevelopmentstudiessincethe1990s.Itispointedoutthatthereisawell-beingthresh-oldatwhichthemarginutilityofeconomicgrowthforhumanwell-beingwilldecline,thatthereisanecologicallimitbeyondwhichmoreeconomicgrowthintermsofphysicalscalewillbeimpossible,andthatthecreationofhumanwell-beingisrelatednotonlytotheamountbutalsotothestructureandefficiencyofpublicexpenditurefromgovernment.Afteranin-depthdiscussiononfacts,originsandpolicyimplicationsofeachissue,sometheoryandpolicythinkingwithlong-lastingsignificanceareraisedforthetransitiondevelopmentofChina.

  • 标签: 可持续发展 中国 经济增长 质量改进 边际效用 人类
  • 简介:OfsomethreethousandlanguagesnowusedintheworldEnglish,thoughnotthelargest(thelargestbeingChineselanguage),ismostwidelyspokenandofprimaryimportance.ConsequentlyEnglishliteratureoccupiesahighpositionintheworldliteratureaswell.LiteraryEnglishhasconcernwithbothlanguageandliterature.HereIwillpresentabriefdescription

  • 标签: SPOKEN brief LITERARY thousand WRITER intended
  • 简介:ParticipationinSocioeconomicDevelopmentThesocioeconomicdevelopmentprovidesmoreopportunitiesforelderlypeopletokepworkingafterr...

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  • 简介:DevelopmentoftheWuniuDistilleryByYANGDALIWUNIU,asmalltownatthemoutheoftheOuRiverinZhejiangProvince,hasanancienttaleabouttheor...

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