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简介:Chinaisatransitionalanddevelopingcountrywiththelargestpopulationandnumberoffarmersintheworld,andshowsastrikingfeatureofurban-ruraldualstructure.ThemajorcontentinChina’srisingmodernizationistheprocessofurbanizationtransformation,urbanizationofsmallandmiddle-sizedcityinChinashouldbecomethebasicpathselection.Whichinvolvesthreeimportantissues:concept,people,andinstitution.Onlybasedonthemodernizationofconcept,peopleandinstitution,therewillautomaticallygeneratethemodernizationofindustry,agriculture,technologyandnationaldefense,andthusconsistentlydevelopingprosperousofboththecountryandthecitizens.更多还原
简介:Thisarticleseekstoaddresssomelingeringdebateswithinsustainabilitystudiesbyrevealingtheconnectionsbetweenrenewableenergyconsumptionandsustainability.Usingdatafrom30OECDcountries,thearticleexaminestheconnectionsviaregressionandgeospatialanalysis.Findingsfromthequantitativeanalysisindicatethatabout50%ofthevariationinsustainabilityisaccountedforbythedegreeofrenewablesconsumption.Thegeo-spatialanalysisvisuallyillustratestheintimateconnectionsbetweenthetwovariables.Theoretically,renewableen-ergyrelatestosustainabilityinthreedimensions.Thefirstdimensioniseconomic.Relyingontraditionalfossilfuelseventuallywillbringoureconomytoastop.Renewableenergies,however,areabletosecureourenergysupplyintoanindefinitefuture.Theseconddimensionlinkstoethics.Toleaveanintactplanettofuturegenerationsisamoralresponsibilityofourgeneration.Thecurrentenergysupplysystemisbuiltondepletionofnaturalresources,whilethesourcesofrenewableenergyarevastandconstantlyreplenished.Thelastdimensionisecologic.Howtoallocateaproperapportionmentoftheglobalbiospherebetweenhumankindandtheotherlifeontheearthisacriticalissuerelatedtosustainability.Byusingrenewableenergy,wecangreatlyreduceourimpactonbiodiversityandthereforestrikeabalancebetweenhumankindandotherlife.Overalltheresearchsuggeststhatdevelopingrenewablescanandinmanycasesdoessustainanation'seconomicgrowthwhilesimultaneouslyprotectingtheenvironment.Itisawin-winsituation.Thisfindingundoubtedlypointsoutapracticalandrealisticpathforsustainabledevelopment.
简介:Thispaperpresentsnonmonotonicquasi-Newtonalgorithmsviatwopre-conditionalcurvilinearpaths,thepreconditionalmodifiedgradientpathandtheprecon-ditionaloptimalpath,forunconstrainedoptimizationproblem.WeemploythestableBunch-Parlettfactorizationmethodtoformtwocurvilinearpathsveryeasily.Thenonmonotonecriterionisusedtospeeduptheconvergenceprogressinthecontoursofobjectivefunctionwithlargecurvature.Theoreticalanalysesaregivenwhichprovethattheproposedalgorithmsaregloballyconvergentandhavealocalsuperlinearcon-vergencerateundersomereasonableconditions.Theresultsofnumericalexperimentsarereportedtoshowtheeffectivenessoftheproposedalgorithms.
简介:Detectionofpathdelayfaultsrequirestwo-patterntests.BISTtechniqueprovidesalow-costtestsolution.Thispaperproposesanapproachtodesigningacost-effectivedeterministictestpatterngenerator(IPG)forpathdelaytesting.Givenasetofpre-generatedtest-patterngenerator(TPG)forpathdelaytesting.Givenasetofpre-generatedtest-pairswithpre-determinedfaultcoverage,adeterministicTPGissynthesizedtoapplythegiventest-pairsetinalimitedtesttime.Toachievethisobjective,configuablelinearfeedbackshiftregister(LFSR)structuresareused.TechniquesaredevelopedtosynthesizesuchaTPG.whichisusedtogenerateanunordereddeterministictest-pairset.TheresultingTPGisveryefficientintermsofhardwaresizeandspeedperformance.SImulationofacademicbenchmarkcircuitshasgivengoodresultswhencomparedtoalternativesolutions.
简介:Greenandintelligentmanufacturingwillbethedevelopmentdirectionofmanufacturingindustrybecauseoftheirfeatures:lowpollutionontheenvironment,highefficiencyandautomaticproduction.Therapiddevelopmentofinternetischangingthedirectionofthemanufacturingindustry,whichwillimpactthegreenandintelligentmanufacturing.Basedonthese,theenvironmentandconditionsofgreenandintelligentmanufacturingbroughtbyinternetissortedoutinthispaper;andthenewopportunitiesandchallengesofgreenandintelligentmanufacturingintheinterneteraareanalyzed.Then,thepathfortherealizinggreenandintelligentmanufacturingisstudied;andsomepolicyrecommendationsareputforwardtopromotetherealizationofgreenandintelligentmanufacturing.
简介:Atthebeginningoftheseconddecadeofthe21stcenturyandontheoccasionofthe90thanniversaryofthefoundingoftheCommunistPartyofChina(CPC),theChinesegovernmentissuedthewhitepaperChina'sPeacefulDevelopment,solemnlydeclaringtothewholeworldonceagainthatpeacefuldevelopmentisastrategicchoicemadebyChinatorealize
简介:MarkedbytheUNClimateChangeConferenceinCopenhagen2009,climatechangeisshapingthenewpatternforfuturegeopoliticswithunprecedenteddrive.Climatechangehassurpassedthecategoryofpureenvironmentproblemandbecomeafocalissueininternationalrelations.Drivenbyclimatechange,newchangeshavetakenplaceintheevolutionofgeopoliticalpattern.(1)Geopoliticalcontentionexpandsintonewfieldsandregions.(2)Measuresandtoolsofgeopoliticalcontentionbecomemorediversified.(3)Mainbodiesofgeopoliticalgamblingaredividedintodifferentgroups.Withthedevelopmentofpoliticization,climatechangehasbecomethesignificantdrivingforcethatcaninfluencetheevolutionofgeopoliticalpattern.Measures,sphereandcontentsofgeopoliticalcontentionchangeddramatically,carbonemissionpermits,carbontariffandnewenergytechnologyturnedintothekeypointsofgeopoliticalcontention.Climatechangeactsontheevolutionofgeopoliticalpatternthroughthreemainpaths:'Feedbackeffect','Tracebackeffect',and'Rippleeffect',andtheyexertinfluenceongeopoliticalpatternwiththreeimpacts:'Depressioneffect','Traceabilityeffect',and'Diffusioneffect'.Wedrawseveralconclusionsfromtheanalysis:(1)Climatechangegraduallybecomesoneofthemostactivedrivingforcestoimpactontheevolutionofgeopoliticalpatterninthepresentworldanditdiversifiesthegeopoliticaltargets.(2)Climatechangegeneratesnewgeopoliticaltools.Thedevelopedcountriesuseclimatechangeasa'Lever'toprystrategicresourceslikeenergyandgrainandthegeopoliticalmeansareinamoresecretiveway.(3)Low-carbontechnology,withnewenergytechnologyasthecore,becomesthekeyfactorofgeopoliticalinfluenceandpowertransition.Thosewhocantakeadvantageofnewenergytechnologieswilloccupytheleadingpositioninfuture’sclimatechangenegotiationsandgeopoliticalcompetition.
简介:<正>OtosclerosiswasfirstdiscoveredbyValsalvain1704[1],andthetermwasfirstusedbyAntonvonTroltschin1872todifferentiatefromtympanosclerosis[2].Normallytheoticcystinhumanremainsstationaryafterfulldevelopmentandcontainsnovisibleactivatedosteoblastsor