简介：Sincetheendofthecoldwar,theworldhasundergoneextensive,complexandprofoundchanges.Thefeaturesofsuchchangesaremulti-polarization,globalizationand

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

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简介：Premiereofcutting-edgecoolingapplianceusingrareearthmagneticrefrigerationtechnologyMagneticrefrigerationtechnologyhasattractedtheattentionoftheworldforitsadvantagesofhighefficiency,energyconservationandenvironmentalprotection.Asthebreakthroughmadeinmagneticrefrigerationmaterialsatroomtemperatureandmagneticrefrigeratorinrecentyears,moreandmorecountrieshavejoinedintheR&Dof

简介：DOEgrantaimedatimprovingprocesstoreducenuclearfuelwaste.An$800,000grantfromtheU.S.DepartmentofEnergywillallowPennStateresearcherstoinvestiga(teanewapproachforremovingrare-earthfissionproductsfromthemoltensaltbathswhereusednuclearfueliselectro-refinedtorecycleuraniumandminimizenuclearwaste.HojongKim,assistantprofessorofmaterialsscienceandengineeringatPennState,willusethegranttowardefficientrecoveryofrare-earthelementsusingliquidmetals.

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简介：HighqualitynaturalmeteoriticmagnetsuccessfullyproducedinashorttimeSource:websiteofTohokuUniversityResearchersfromTohokuUniversityinJapanhavesucceededinproducingacompletelyrare-earthfreehigh-qualityFeNimagnet.Theteam,ledbyProfessorAkihiroMakinoasprincipalinvestigatorissupportedbyaMEXT(MinistryofEducation,Culture,Sports,ScienceandTechnology,Japan)projectentitled,"Ultra-low

简介：MSU-basedphysicistsstudiedcomplexmagnetisminarareearthcompoundDyGe3ordysprosiumgermanideisasilver-whiterareearthelementthatisnotveryoftenfoundintheEarthcrust.Itformsrefractoryoxidesthatarealmostinsolubleinwater.Duringthestudythescientistsappliedthepressureof8GPatoobtainpolycrystalsamplesofdysprosiumgermanideinametastablestatestateoflocalthermodynamicequilibriumcapableofchangingtoamorestablestateundercertainconditions.

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.

简介：ThecoreissueforChinatransitiondevelopmentinthenext30yearsistoshiftfromthequantitygrowthmodeltothequalityimprovementmodel.Thepaperintroducestheresearchprogressinthreekeyareasofsustainabledevelopmentstudiessincethe1990s.Itispointedoutthatthereisawell-beingthresh-oldatwhichthemarginutilityofeconomicgrowthforhumanwell-beingwilldecline,thatthereisanecologicallimitbeyondwhichmoreeconomicgrowthintermsofphysicalscalewillbeimpossible,andthatthecreationofhumanwell-beingisrelatednotonlytotheamountbutalsotothestructureandefficiencyofpublicexpenditurefromgovernment.Afteranin-depthdiscussiononfacts,originsandpolicyimplicationsofeachissue,sometheoryandpolicythinkingwithlong-lastingsignificanceareraisedforthetransitiondevelopmentofChina.

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简介：OfsomethreethousandlanguagesnowusedintheworldEnglish,thoughnotthelargest(thelargestbeingChineselanguage),ismostwidelyspokenandofprimaryimportance.ConsequentlyEnglishliteratureoccupiesahighpositionintheworldliteratureaswell.LiteraryEnglishhasconcernwithbothlanguageandliterature.HereIwillpresentabriefdescription

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简介：ＤｅｖｅｌｏｐｍｅｎｔｏｆｔｈｅＷｕｎｉｕＤｉｓｔｉｌｌｅｒｙＢｙＹＡＮＧＤＡＬＩＷＵＮＩＵ，ａｓｍａｌｌｔｏｗｎａｔｔｈｅｍｏｕｔｈｅｏｆｔｈｅＯｕＲｉｖｅｒｉｎＺｈｅｊｉａｎｇＰｒｏｖｉｎｃｅ，ｈａｓａｎａｎｃｉｅｎｔｔａｌｅａｂｏｕｔｔｈｅｏｒ...

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