学科分类
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46 个结果
  • 简介:TheU.S.election2004finallyconcluded.BushdefeatedKerryandwasre-electedU.S.President,thoughafterfiercecompetition.WhatglobalstrategyandforeignpolicywillBushtakeinhissecondtermbecomesthesubjectthatishotlydiscussed.InBush'sfirstterm,U.S.governmentunderwentthe9/11terroristevents.Afterwards,theBushadministrationlinkedanti-terrorismwithoverthrowingSaddam.Withoutampleevidence,AmericalaunchedwaragainstIraqdespiteoppositionofmajormemberstatesoftheUNSecurityCouncil,revealingitsclearconservatistinclinationandseriousunilateralact.ConsequentlyitispredictedthatBushwillcontinuesuchapolicyinhissecondtermandevengofurtheraway.However,withregardtotheoverallsituation,Bushwillpartlyrestricthisextremelyseriousunilateralpolicyandreturntoanintermediatepolicytosomeextent.Thisisrevealedinthefollowingfeatures.

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  • 简介:CentralCommitteeoftheCommunistPartyofChinaandtheStateCouncilrecentlyissued'OpiniononadjustmentandImprovementoffertilitypolicies'.Itexplicatesthesignificanceandoverallthinkingforadjustmentoffertilitypolicies,demandsforadheranceofthebasicnationalpolicyoffamilyplanningandpromotionofalltherelatedworksteadily,firmlyandorderly.

  • 标签: 中国共产党 计划生育 调整 国务院 委员会
  • 简介:Closescrutinyintoworldeconomyrevealsafreshpicture,inwhichdevelopedcountrieshavesteppedoutofthegloomyeconomicrecessionoftheearlynineties;developingcountrieshaveextricatedthemselvesfromthepredicamentofthe“lostdecade”oftheeighties;EasternEuropeancountriesundereconomictransformationareshowingsignsofrevivalafteradropintoeconomictrough;an-

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  • 简介:Athorough-goingchangeineconomicdevelopmentmodeiscrucialtothesolu-tionoftheknottyworldeconomy.Theworld’strendintheninetiesistoseeka“sustainabledevelopment”.Theyear1992winessedtheconvocationoftheUnitedNationsConferenceonEnvironmentandDevelopment;theUnitedNaitonsPopulationConferencewasconvenedin1994;andinMarch1995,theU-nitedNationsWorldSummitonSocialDevelopmentwasheldinCopenhagen.All

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  • 简介:Inpracticalparameterestimation,wehavealwayschoseneitherLeastSquaresEstimation(LSE)orRobustEstimation.Sincethedistributionofobservationsisunknown,toselectacorrectestimationmethodisverydifficult.Itiswellknownthatifobservationsincludegrosserrors,theresultofLSEwillbebadlycontaininated.Ontheotherhand,ifobservationsdonotincludeanygrosserrors,theresultofrobustestimationisnotasgoodasthatofLSE.Tosolvethisproblem,Wang(1999)developedanestimationmethodcalledInformationSpreadEstimation(ISE)basedontheinformationspreadprinciple.TheISEisaverygoodmethodforestimatingoneparameterwhichisveryrobust.However,mostofinstancesinsurveyingdataprocessingaremulti-parameters'estimation,owingtotheinherentrestrictionsofISE,itcannotbeappliedtothesurveyingdataprocessingdirectly.Toapplythegoodmethodtothefieldofsurveyingdataprocessingwidely,theauthorhasdonetheresearchdeeply.ThispaperappliesISEsuccessfullytotheadjustmentoflevelingnetworkbyusingthespecialtiesofleveling.

  • 标签: RESIDUAL ERROR data SNOOPING robust ESTIMATION
  • 简介:WhentalkingaboutTibetans,peoplenaturallythinkaboutTibet(TibetAutonomousRegion,whichwillbereferredtoasTARinthefollowingtext),butseldomrealizethattheTibetanregionextendsfarpastthebordersofTibet.BasedonTibetanhistoricalandculturaldifferences,theTibetanregionofChinacan

  • 标签: 中国 西藏 自治区 现代化建设
  • 简介:Theyearof2000isattheturnofthecenturyaswellasofthemillennium.Themankindwavesfarewelltothe20thcenturyaswellasthesecondmillenniumandwelcomesthe21stcenturyandthethirdmillennium.Atthisspecialjuncture,lookingcloselyatthefuturebasedonunderstandingwhichwasobtainedfromre-viewingandsummarizingthepastandpresentworldpoliticsfromhistoricalandphilosophicalstandpoints,wecanfindthatithasbecomeanunavoidablesubjectonhowtoregardthetrendoftheworldpatterntowardmulti-polarizationandrespon-sibilityadjustmentarisingfromit.

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  • 简介:TheservicestructureofChinapostisnotmatchthepostalresourcesstructure,Coreserviceisnotstressed.Therefore,thepostalservicemustbereorganizedandAdjustedaccordingtothemarketneeds.Thisarticleclassifypostserviceintofivecatalogues,proposesthestrategicorientationofeachcataloguesandanalysestheinteriorstructureofdifferentpostalservice.

  • 标签: CORE power POSTAL CORE SERVICE POSTAL
  • 简介:Invideoinformationretrieval,keyframeextractionhasbeenrecognizedasoneoftheimportantresearchissues.Althoughmuchprogresshasbeenmade,theexistingapproachesareeithercomputationallyexpensiveorineffectiveincapturingsalientvisualcontent.Inthispaper,wefirstdiscusstheimportanceofkeyframeextractionandthenbrieflyreviewandevaluatetheexistingapproaches.Toovercometheshortcomingeoftheexistingapproaches,weintroduceanewalgorithmforkeyframeextractionbasedonunsupervisedclustring.Meanwhile,weprovideafeedbackchaintoadjustthegranularityoftheextractionresult.Theproposedalgorithmisbothcomputationallysimpleandabletocapturethevisualcontent.Theefficiencyandeffectivenessarevalidatedbylargeamountofreal-worldvideos.

  • 标签: 数字视频 视频信息检索 反馈调整
  • 简介:Ofitstotalexportvolume,theproportionofChina’snewandhightechnologyproductsandhighvalue-addedproductsisextremelylow.Itspuretechnologicalexportrateisonly2percentofthetotal.Therefore,alongwiththetransformationofthemodeofgrowthofChina’snationaleconomy,acorrespondinggrowthmodetransformationshouldtakeplaceinitsforeigntradesector,anditisnecessarytoachieveasignificantchangeinitsimportandexportproductmix.

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  • 简介:Uptonow,outlierdetectionandreliabilitytheoryaregenerallybasedontheregularGauss-Markovmodels,inwhichthecovariancematrixofob-servationsispositivelydefinite.Fortheadjustmentmodelswithsingularcovari-ancematrix,thestatisticsforoutlierdetectionarederivedbytheauthors.Thecorrespondingreliabilitytheoryisdeveloped.Andtheapplicationofthetheoryisdemonstratedwithapracticalexample.

  • 标签: SINGULAR adjustment MODELS OUTLIERS RELIABILITY THEORY
  • 简介:SinceU.S.presidentBushadoptedthenewIraqplanonJanuary10,2007forsendingmoretroopstoIraq,thesituationinIraqhasremainedinastateofchaos.TheIraqissuecontinuestostandasafocalpointoftheMiddleEastcrisis,

  • 标签: 中东局势 美国 布什政府 政策调整 演化