简介：在《英文角斗场》中,每篇文章都是精选自英美中小学生的读物和教材噢。想知道自己的英语水平有多高,就来试试吧。

简介：ChangesinthecontentofEuropeanbalanceconstitutethebiggestdifferencebetweentheeconomicintegrationmodelanditspredecessors.Armament,territoryandresourceswereconsideredaskeyfactorsforenhancedstrengthandsustainedpowerparitywithothernations.Transitiontoeconomicintegrationhashoweverentaileddecouplingofthetwo.EnhancednationalstrengthnowaimsinsteadatpowerparityandsharedpowerbasedoncommonEuropeaninterestsandinter-dependencyratherthanatweakeningothernations.Asaresult,staterelationstherearemovingtowardfusionandconvergence.

简介：Intenseclashesofinterestsandcollusionofideassprangupincessantlyamongnationsoverupwardsovereigntytransfer,interestsdistributionandmaintenanceofparityamongpartnersinthecourseofeconomicintegration.Disparitiesinsize,territory,nationalstrengthanddevelopmentlevelconceivablyoftenledtotensionsandevencrisesoverpowerdistribution.SoEUhistorycanbedescribedasoneofcrisesorcrisissettlementthroughreachinganewequilibrium,asignificantprocessforsustainedEUstability.

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简介：ThefifthroundoftheEUenlargementonMay1,2004turnsthelong-cherished"utopia"ofaunifiedEuropeintorealitythroughapeaceful,economicapproach.①Thispaperattemptstomakesomeexplorationsonthefollowingissues:Whytheoptionforaneconomicapproach?Whatchangeshavetakenplaceinthenatureandbehavioroftherelevantnations?WhatimpactwilltheeventhaveonEuropeanstabilityandbalance?②HowwilltheEUkeepequilibriumthroughsystemicmechanismsincaseofinter-statedisputessoastolaythepoliticalgroundworkforapeacefulunification.

简介：InOctober1991,PresidentBorisYeltsininitiatedaprogramofradicaleconom-icreformatthefifthsessionoftheoldparliament,theCongressofthePeople’sDeputies,andintroducecdtheso-called“shocktherapy”throughoutthecountryonJanurary2thefollowingyear.Theprogramaimsattherealizationofatransitionfromaplannedeconomytoamarketonewithinashortspanoftime

简介：A5－yearexperimentonwaterbalancehasbeenconductedinaflatrainfedwheatfieldwithanareaof66×100m^2inFengqiu,HenanProvinceinChina.Basedontheanalysisofsemi-variancefunctionsconductedwithsoilmoisturesamplestakenfrom77nodesofa10×10m^2grid,thesoilmoisturedistributioninthefieldwasstructuralwithatemporalstability.Accordingtotheautocorrelationrangeofthesemi-variancefunction,6siteswereselectedforthedeterminationofsoilwaterconditions.Thecharacteristicofprobabilitydensityfunctionofthedifferencesofwaterstorageintwosetsofmeasurementsshowedthatthedistributionofthesevariablesinthefieldwasanormalone.Theerrorintheestimationoftheaverageof5randomsampleswas14%(α=0.10),andtheerrorsofwaterconsumptionbywheatduringtheexperimentswereestimatedtobe6-13%.Simetheexperimentalfieldwaslargeenoughtoavoidanyedgeeffect,theresultsobtainedshouldtallywiththeactualsituation.Yetthesoilsystemwasheterogeneous,sowemustfollowtheprinciplesofstatisticsandgeostatisticswhendescribingthesystem'sstatuswiththeaverageofthesamples.

简介：IntroductionTheEuropeanUnion(EU)discloseditsnewstrategyfordealingwithChinawhenissuinganewpolicypaperentitled"EU-China:CloserPartnership,GrowingResponsibilities"onOctober24,2006.ByacknowledgingChinaasanewglobaltradeforce,thepolicypaperarguesthat"theEU’sfundamentalapproachtoChinamustremainoneofengagementandpartnership,butwith

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简介：AnexperimentwasconductedinaredsoilderivedfromQuaternaryredclayintheEcologicalExperimentStationofRedSoil.theChineseAcademyofSciences,locatedinYingtan(28°15′30″N,116°55′30″E),JiangxiProvince,TheResultsshowthatthemajorwaysofnutrientlossareleachingandnitrogenvolatilization.Rationalizingcropdistribution,stimulatingnutrientrecycling,andimprovinginternalnutrientflowareeffectivemeasurestodecreasenutrientlossandtopromotenutrientutilizationefficiency.Theimportantwaysofregulatingnutrientcyclingandbalanceintheagroecosystemoftheredsoilaretoestablishoptimaleco-agriculturalmodels,practicebalancedfertilizationandcombinethecroppingsystemwiththelivestocksystem.

简介：Inthispaper,animprovedmethod,whichisbasedontheharmonic-balancetech-nique,forspeedinguptheconvergenceiterationprocedureispresented.Asanexample,itisappliedtothenonlinearanalysisofmicrowavemixer,inwhichasimpletimedomaintofre-quencydomaintransformationtechniqueforthemixerdiodeisfirstlyintroduced.Theuseofthistechniquesavescomputingtimedramatically.Andtheanalyzedresultsareingoodagreementwiththeresultspublished.TheimprovedmethodcanalsobeextendedtotheCAAofnonlinearcircuitswithmulti-devices.

简介：Inthispaper,weprovethatthe0/1balanceknapsackmodule2^Nisequivalenttothestandardblanceknapsackwithitsweightmatrixbeingtheuppertrianglematrix,itsnumberequalsto2^N(N-1)/2N(!),andtheitscomponent'snolinearcomplexityoftheoutputsequencebeingI.

简介：Amethodologyisproposedtohandleproblemthatunderequiprobleaddressofpackettrafficattheinputport,GeneralizedShuffle-ExchangeNetwork(GSEN)routestrafficunevenlybecauseoftheunbalancedroutingtags.Theideaistouseroutingtagaccordingtoprobability,whichcanbeevaluatedbyusingMoore-Penroseinverseinmatrixanalysis.Aninstanceisusedtoillustratetheidea,andthesimulationisdonetoshowtheimprovementinperformanceissues.

简介：TheaimofthisworkisanimprovementoftheparameterizationofthesoilmoistureintheschemeoftheLandSurfaceProcessModel(LSPM)forapplicationsoverdesertareas.Infact,inverydryconditions,thewatervapourfluxplaysanimportantroleintheevaporationprocessesandinfluencestheundergroundprofilesofhumidityandtemperature.TheimprovedversionofsoilmoistureparametcrizationintheLSPMschemehasbeencheckedbyusingthedatatakenfromthedatabaseofthefieldexperimentHAPEX-Sahel(Hydrology-AtmospherePilotExperimentintheSahel,1990-1992).ModelsimulationsrefertothreedifferentstationslocatedinNiger(Fallow,MilletandTigersites)whereinputdataforLSPMandobservationsweresimultaneouslyavailable.TheresultsofsimulationstakingintoaccountthewatervapourfluxinthesoilmodelLSPM,seemtocomparebetterwiththeobservedbehaviourofsoilmoistureandturbulentheatfluxesthanthoseoverlookingthewatervapourflux,confirmingthegreatimportanceofthewatervapourinsuchdryconditions.

简介：动态在三维的变化数据吸收抑制当在压力和风域上考虑流分叉和集中的影响时，被讨论。为严重热带气旋，正面的结构，和另外的很快变化的结构的分析，因地球自转而引起的平衡和线性平衡不能适当地代表在风和压力地之间的关系。然而，非线性的平衡增长方程考虑流动依赖者背景的信息，并且在3D-Var系统做反应到流动依赖者背景协变性。结果显示到3D-Var系统的非线性的平衡方程的应用程序改进严重热带气旋吸收系统的质量，它在热带气旋的紧张预言上有一些积极效果。[出版摘要]

简介：Fluentversion6.2computationalfluiddynamicsenvironmenthasbeenenhancedwithapopulationbalancecapabilitythatoperatesinconjunctionwithitsmultiphasecalculationstopredicttheparticlesizedistributionwithintheflowfield.Thepopulationbalanceissolvedbythequadraturemethodofmoments(QMOM).Fluent'spredictioncapabilitiesaretestedbyusinga2-dimensionalanalogyofaconstantlystirredtankreactorwithafluidflowcompartmentthatmixesthefluidquicklyandefficientlyusingwallmovementandhasafeedstreamandaproductstream.TheresultsoftheseFluentsimulationsusingQMOMpopulationbalancesolverarecomparedtosteadystateanalyticalsolutionsforthepopulationbalanceinastirredtankwhere1)growth,2)aggregation,and3)breakage,takeplaceseparatelyand4)combinednucleationandgrowthand5)combinednucleation,growthandaggregationtakeplace.Theresultsofthesecomparisonsshowthatthemomentsofthepopulationbalanceareaccuratelypredictedfornucleation,growth,aggregationandbreakagewhentheflowfieldisturbulent.Withlaminarflowthemixingisnotidealandasaresultthesteadystatewellmixedsolutionsarenotaccuratelysimulated.

简介：Q－doubleeffectofdifferentbalancebridgevoltagecontrolledcrystaloscillator(DBVCXO)isquantitativelyanalysedbythecomputersimulation.

简介：在维持在供应之间的平衡的耕地工具的供应和需求和在有时间的推移的某个区域以内的耕地的需求之间的动态平衡。维持在耕地的供应和需求之间的动态平衡是为耕地的持续使用和农业的持续发展的前提和基础，是众所周知的。并且它是与整个社会和国民经济的持续发展有关的一个全面、战略的问题。现在，面对象人口的快速的生长的如此的一种严重状况，蓬勃发展工业和城市的扩大，激进的土壤恶化和污染和数量的连续减少和在世界上的耕地的质量，中国不得不依靠它的自己的陆地作为一个号码1最大的人口得到食物的自足。

简介：ThroughacomparisonbetweentheexpressionsofmasterbalancelawsandtheconservationlawsderivedbyNoether'stheorem,aunifiedmasterbalancelawandsixphysicallypossiblebalanceequationsformicropolarcontinuummechanicsarenaturallydeduced.Amongthem,byextendingthewell-knownconventionalconceptofenergymomentumtensor,therathergeneralconservationlawsandbalanceequationsnamedafterenergy-momentum,energy-angularmomentumandenergy-energyareobtained.Itisclearthattheformsofthephysicalfieldquantitiesinthemasterbalancelawforthelastthreecasescouldnotbeassumeddirectlybyperceivingthroughtheintuition.Finally,someexistingresultsarereducedimmediatelyasspecialcases.

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