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  • 简介:Thereareprofoundsocial,economicandpoliticalreasonsfortheriseoftheEuropeanextremeright.ItinfluencesnotonlyEuropeansocialandpoliticaldevelopmentbutalsoitsforeignpolicy.

  • 标签: 欧洲 势力 社会现象 外交政策 政治
  • 简介:华硕RampageIIExtreme作为玩家国度的顶级产品,其代表着最新最高端的硬件平台,因此功能、用料和价格定位都针对高级玩家.

  • 标签: EXTREME 华硕 硬件平台 价格定位
  • 简介:Amplitudemodulationofnear-wallturbulencebylarge-scalestructuresintheouterlayerisinvestigatedbydirectnumericalsimulationofturbulentchannelflowsatReynoldsnumberReτ=540,1000,2000.Theeffectofmodulationisobviousinthetwo-pointcross-sectioncorrelationmap,andthecorrelationcoefficientsincreasesignificantlywiththeReynoldsnumber.Theinfluenceofmodulationisreflectedinthetailoftheprobabilitydensityfunctionofthenear-wallflowsignals,whichexpandsastheReynoldsnumberincreases.Theflatnessfactorprovidesaquantitativedescriptionofthehighfluctuationeventsduetomodulation.Vorticalstructuresassociatedwithmodulationarerevealedbyconditionallyaveragingtheflowfieldofthenear-wallextremeevents,providingadepictionofhowtheinfluenceofthelarge-scalestructurespenetratetowardsthenear-wallregion.

  • 标签: Wall TURBULENCE AMPLITUDE modulation FLATNESS EXTREME
  • 简介:Telluriumisasortofscatteredrareelementontheearth.Itsconcentrationisverylowinearth'scrust,only1.0ng/g.However,ithasextremelyhighabundanceinCo-richcrusts,marinepolymetallicnodules,deep-seasedimentsandaerolites.Tofindouttheoriginoftelluriumenrichmentindeep-seasediments,weanalyzedandcomparedtelluriumconcentrationsandheliumisotopecompositionsinthemagneticpartsandthoseinthebulkpartsofdeep-seasediments.Theresultindicatesthattheheliumcontent,3He/4Heratioandtelluriumconcentrationareobviouslyhigherinthemagneticpartsthanthoseinthebulkparts.The3Heabundancevariessynchronouslywiththetelluriumconcentration.3HeandTehaveadistinctpositivecorrelationwitheachother.Itisthefirsttimethatthepaperbringsforwardthattheextremeenrichmentoftelluriumindeep-seasediments,likeheliumisotopeanomalies,probablyresultsfromtheinputofinterplanetarydustparticles(IDPs).Similarly,theextremeenrichmentoftelluriuminmarinepolymetallicnodulesandCo-richcrustsispossiblyrelatedtoIDPs.

  • 标签: 深海地区 沉积物 富集度 海洋资源 矿产资源
  • 简介:笔者刚于上月底往澳洲悉尼工干,工作完毕之后还有一天半的时间,便上网看看市区附近有没有值得一游的旅游点可跟朋友逛逛,哧然发现悉尼其中一个较为细小的ManlybeachOcaeanworldAquarium会开放鱼缸公众人士作近距离的接触……

  • 标签: 悉尼 潜水 鲨鱼
  • 简介:Intel925XE芯片组是一款面向高端市场的产品,随着它的推出,有实力的主板大厂相继推出了基于Inyel925XE芯片组的主板,精英作为英特尔的重要合作伙伴在第一时间发布了采用该款芯片组的主板——PE21Extreme,除了强大的功能,技术上的创新也使PF21Extreme笼罩上了高科技的色彩,成为高端主板中的典范!

  • 标签: 主板 芯片组 英特尔 精英 高端市场 发布
  • 简介:WesternChinaexperiencedanextremehotsummerin2015,breakinganumberoftemperaturerecords.Thesummermeansurfaceairtemperature(SAT)anomalywastwicetheinterannualvariability.Thehottestdaytimetemperature(TXx)andwarmestnight-timetemperature(TNx)werethehighestinChinasince1964.Thisextremehotsummeroccurredinthecontextofsteadilyincreasingtemperaturesinrecentdecades.Wecarriedoutasetofexperimentstoevaluatetheextenttowhichthechangesinseasurfacetemperature(SST)/seaiceextent(SIE)andanthropogenicforcingdrovetheseverityoftheextremesummerof2015inwesternChina.Ourresultsindicatethatabout65%-72%oftheobservedchangesintheseasonalmeanSATandthedailymaximum(Tmax)anddailyminimum(Tmin)temperaturesoverwesternChinaresultedfromchangesinboundaryforcings,includingtheSST/SIEandanthropogenicforcing.Fortherelativeroleofindividualforcing,thedirectimpactofchangesinanthropogenicforcingexplainabout42%oftheSATwarmingand60%(40%)oftheincreaseinTNxandTmin(TXxandTmax)inthemodelresponse.ThechangesinSST/SIEcontributedtotheremainingsurfacewarmingandtheincreaseinhotextremes,whicharemainlytheresultofchangesintheSSToverthePacificOcean,whereasuperElNi?oeventoccurred.OurstudyindicatesaprominentroleforthedirectimpactofanthropogenicforcingintheseverityoftheextremehotsummerinwesternChinain2015,althoughthechangesinSST/SIE,aswellastheinternalvariabilityoftheatmosphere,alsomadeacontribution.

  • 标签: SEVERITY of temperature EXTREMES summer 2015
  • 简介:NumericalsimulationsofextremewavegenerationarecarriedoutbyusingtheVolumeOfFluid(VOF)method.Extremewavesaregeneratedbasedonwavefocusingina2-Dnumericalmodel.TovalidatethecapabilityoftheVOF-basedmodeldescribedinthisarticle,thepropagationofregularwavesiscomputedandcomparedwiththetheoreticalresults.Byadjustingthephasesofwavecomponents,extremewavesareformedatgiventimeandgivenpositioninthecomputation.Thenumericalresultsarecomparedwiththeoreticalsolutionsandexperimentaldata.ItisconcludedthatthepresentmodelbasedontheVOFtechniquecanprovideacceptablyaccuratenumericalresultstoservepracticalpurposes.

  • 标签: VOF方法 数值模拟 波浪发电 二维数值模型 极限 作者
  • 简介:第五产生的宾夕法尼亚州的University/NCARMesoscaleModelVersion3(MM5V3)被用来在1999年6月在长江盆上模仿极端重降雨事件。模型极端气候事件上的水平、垂直的决定的效果详细被调查。原则上,模型能描绘每月重的降水的空间分发。结果显示水平分辨率的增加能减少建模的大雨的偏爱并且相当在学习时期期间模仿每日的降水的变化。导致的一个更好的垂直决定显然与更小的偏爱改进降雨模拟,并且因此,更好解决重降雨事件。在水平、垂直的分辨率的Theincrease能生产重降雨事件的更好的预言。在不同水平、垂直的格子间距的情况中改变的不仅降雨模拟,而且另外的气象学的领域在模型以决定变化表明了多样的变化。在模仿的海平面气压的明显的改进源于水平分辨率的增加,但是模拟对垂直格子间距感觉迟钝。垂直分辨率的增加能在底层提高地面温度以及大气循环的模拟,当在中间、上面的层次的循环的模拟在改变分辨率上被发现是少得多依赖时。另外,积云parameterization计划显示出高敏感到水平分辨率。Differentconvective计划关于改变分辨率在降雨模拟展出了大差异。在Grell计划的对流降水的百分比与增加水平分辨率增加了。相反,Kain-Pritsch计划引起了对流降水的减少的比率总计相应于增加水平分辨率的降雨累积。

  • 标签: 区域气候 分辨能力 对流 降雨
  • 简介:Inrecentyears,theredtideeruptedfrequently,andcausedagreateconomicloss.Atpresent,mostliteraturesemphasizetheacademicresearchonthegrowthmechanismofredtidealga.Inordertofindoutthecharactersofredtideindetailandimprovetheprecisionofforecast,thispapergivessomenewapproachestodealingwiththeredtide.Bytheextremevalues,wedealwiththeredtidefrequencyanalysisandgettheestimationofT-timesredtidelevelU(T),whichistheleveloncetheconsistenceofredtidealgaexceedsontheaverageinaperiodofTtimes.

  • 标签: 赤潮 海洋污染 频率 预报方法
  • 简介:Forpredictionoftheextremesignificantwaveheightintheoceanareaswherelongtermwavedataarenotavailable,theempiricalmethodofextrapolatingshorttermdata(1~3years)isusedindesignpractice.Inthispapertwomethodsareproposedtopredictextremesignificantwaveheightbasedonshort-termdailymaxima.AccordingtothedaarecordedbytheOceanographicStationofLiaodongBayattheBohaiSea,itissupposedthatdailymaximumwaveheightsarestatisticallyindependent.Thedatashowthatdailymaximumwaveheightsobeylog-normaldistribution,andthatthenumbersofdailymaximavaryfromyeartoyear,obeyingbinomialdistribution.Basedonthesestatisticalcharacteristics,thebinomial-log-normalcompoundextremumdistributionisderivedforpredictionofextremesignificantwaveheights(50~100years).Forexaminationofitsaccuracyandvalidity,thepredictionofextremewaveheightsisbasedon12years′dataatthisstation,andbasedoneach3years′datarespectively.Theresultsshowthatwithconsiderationofconfidenceintervals,thepredictedwaveheightsbasedon3years′dataareveryclosetothosebasedon12years′data.TheobserveddatainsomeoceanareasintheAtlanticOceanandtheNorthSeashowitisnotcorrecttoassumethatdailymaximumwaveheightsarestatisticallyindependent;theyaresubjecttoMarkovchaincondition,obeyinglog-normaldistribution.Inthispaperananalyticalmethodisderivedtopredictextremewaveheightsinthesecases.AcomparisonofthecomputationsshowsthatthedifferencebetweentheextremewaveheightsbasedontheassumptionthatdailymaximaarestatisticallyindependentandthattheyaresubjecttoMarkovChainconditionissmallerthan10%.

  • 标签: DAILY MAXIMA COMPOUND extremum distribution MARKOV