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简介：Centrifugeexperimentsarecarriedouttoinvestigatetheresponsesofsuctionbucketfoundationsunderhorizontaldynamicloading.Theeffectsofloadingamplitude,thesizeofthebucketandthestructuralweightonthedynamicresponsesareinvestigated.Itisshownthat,whentheloadingamplitudeisoveracriticalvalue,thesandattheupperpartaroundthebucketsoftensorevenliquefies.Theliquefactionindex(excessporepressuredividedbyinitialeffectivestress.Inthispaper,thedevelopmentaldegreeofexcessporepressureisdescribedbyliquefactionindex)decreasesfromtheupperparttothelowerpartofthesandfoundationintheverticaldirectionanddecreasesfromneartofarawayfromthebucket′ssidewallinthehorizontaldirection.Largesettlementsofthebucketandthesandaroundthebucketareinducedbythehorizontaldynamicloading.Thedynamicresponsesofthebucketofasmallerheight(whenthediameteristhesame)areheavier.Acycliccracksomedistancenearthebucketoccursinthesand.

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简介：Usingreal-timedataandtheWRFmesoscalemodel,aheavyraineventintheprocessofMesoscaleConvectiveComplex(MCC)turningintobandedMesoscaleConvectiveSystems(MCSs)during18-19June2010issimulatedandanalyzedinthispaper.Theresultsindicatedthattheformationandmaintenanceofasouthwestvortexandshearlineat850hPawasthemesoscalesystemthataffectedtheproductionofthisheavyrain.Thelow-vortexheavyrainmainlyhappenedinthedevelopmentstageofMCC,andthecircularMCCturnedintobandedMCSsinthelatestagewithmainlyshearlineprecipitation.Inthevicinityofrainfallarea,theintensehorizontalvorticityduetotheverticalshearofuandvcausedtherotation,andincorrespondence,theascendingbranchoftheverticalcirculationtriggeredtheformationofheavyrain.Thedifferentdistributionsofuandvintheverticaldirectionproducedvaryingverticalcirculations.Thehorizontalvorticitynearthelow-vortexandshearlinehadobviousdifferenceswhichledtovaryingreasonsforheavyrainformation.Thelow-vortexheavyrainwasmainlycausedbytheverticalshearofv,andtheshearlinerainfallformedowingtotheverticalshearofbothuandv.Inthisprocess,theverticalshearofvconstitutedtheEW-trendingrainbandalongtheshearline,andthelatitudinalnon-uniformityoftheverticalshearinucausedtheverticalmotion,whichwascloselyrelatedtothegenerationanddevelopmentofMCSsattheshearlineandtheformationofmultiplerainclusters.Therewasalsoasimilardifferenceinthepositively-tiltingterm(conversionfromhorizontalvorticitytoverticalpositivevorticity)neartherainfallcenterbetweenthelow-vortexandtheshearline.Theconversioninthelowvortexwasmainlydeterminedbyбv/бp<0,whilethatoftheshearlinebyбu/бp<0.Thescaleoftheconversionfromthehorizontalvorticitytoverticalvorticitywasrelativelysmall,anditwaseasilyignoredintheaveragedstate.Thetwistingtermwasmainlyconducivetothereinfor

简介：重力的势能(GPE)变化由于horizontal/isopycnal旋涡散开和移流被检验。Horizontal/isopycnal旋涡散开概念上被分开成二步：激动人心并且subscale散开。与这二步联系的GPE变化被分析。另外，GPE变化由于激动人心并且在Eulerian坐标与horizontal/isopycnal移流联系的subscale散开被分析。这些公式为世界海洋被用于SODA数据。我们的分析显示在Eulerian坐标的horizontal/isopycnal移流能在模型介绍大人工的散开。在isopycnal坐标的GPE来源/水池仔细被连接到物理性质分发，这被显示出，例如温度，咸度和速度。与z协调比较，GPE来源/水池由于与isopycnal散开/移流联系的stirring/cabbeling是小得多的。尽管isopycnal坐标可以以处理侧面的散开是一种更好的选择，在传统的Eulerian坐标的移流术语能由于与移流联系的cabbeling生产GPE的人工的来源。减少如此的数字错误仍然是宏大挑战。

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简介：Horizontalimpedancefunctionsofinclinedsinglepilesaremeasuredexperimentallyformodelsoil-pilesystemswithboththeeffectsoflocalsoilnonlinearityandresonantcharacteristics.Twopracticalpileinclinationsof5掳and10掳inadditiontoaverticalpileembeddedincohesionlesssoilandsubjectedtolateralharmonicpileheadloadingsforawiderangeoffrequenciesareconsidered.Resultsobtainedwithlow-to-highamplitudeoflateralloadingsonmodelsoil-pilesystemsencasedinalaminarshearboxshowthatthelocalnonlinearitieshaveaprofoundimpactonthehorizontalimpedancefunctionsofpiles.Horizontalimpedancefunctionsofinclinedpilesarefoundtobesmallerthantheverticalpileandthevaluesdecreaseastheangleofpileinclinationincreases.Distinctvaluesofhorizontalimpedancefunctionsareobtainedforthe＇positive＇and＇negative＇cyclesofharmonicloadings,leadingtoasymmetricforce-displacementrelationshipsfortheinclinedpiles.Validationoftheseexperimentalresultsiscarriedoutthroughthree-dimensionalnonlinearfiniteelementanalyses,andtheresultsfromthenumericalmodelsareingoodagreementwiththeexperimentaldata.Sensitivityanalysesconductedonthenumericalmodelssuggestthattheconsiderationoflocalnonlinearityatthevicinityofthesoil-pileinterfaceinfluencetheresponseofthesoil-pilesystems.

简介：在这份报纸，我们在场从在朝鲜半岛上的三个重降雨事件的高分辨率的数字模拟的结果。当水平分辨率增加了，数字结果证明为重降雨事件的预言精确性改善了。好格子的降水域离在在朝鲜半岛上的大摘要的强迫的情况中的真实降水域靠近得多。在大对流可得到的势能并且弱摘要的强迫的情况中，甚至当使用高分辨率时，看起来，模型仍然在复制观察高降水数量显示出差的性能。然而，甚至在3km的格子间距，在9km的中间的分辨率的积云parameterization计划的激活在重降雨事件的模拟上有积极影响。

简介：边察觉和改进技术通常在用潜在的域数据认出地质的身体的边被使用。我们在场一种新边识别技术基于有边察觉和改进技术的功能的全部的水平衍生物的规范的垂直衍生物。首先，我们计算潜在地的数据的全部的水平衍生物(THDR)然后计算n顺序THDR的垂直衍生物(VDRn)。为n顺序垂直衍生物，全部的水平衍生物(PTHDR)的山峰价值用比0大的阀值价值被获得。这PTHDR能被用于边察觉。第二，PTHDR价值被全部的水平衍生物划分并且由最大的价值使正常化。最后，我们使用了数字模型的不同类型验证新边识别技术的有效性和可靠性。

简介：在有高地震的危险的地点的风汽轮机的宽推广导致了工程师考虑如此的结构的一个更全面的地震图案。汽轮机特定的指南通常使用简化方法并且认为许多假设把地震需求与完成这些结构的设计的另外的运作的负担相结合。当汽轮机在尺寸和能力增加，在地震负担和空气动力学的负担之间的相互作用变得甚至更重要。响应对能执行风和地震负担的联合模拟的一个计算工具的需要，一个地震模块为快代码被开发并且在这描述了研究。这个平台允许在这工业工作直接考虑在之间的相互作用的工程师地震并且为汽轮机的另外的环境负担。这篇论文详细说明这个平台的实际应用程序和理论并且为不同能力的使用提供例子。站台然后被用来与由估计适当负担因素的空气动力学的抑制的含蓄的考虑显示出合适的地震和运作的负担联合。

简介：BycomputingandclassifyingthedataofgullyoffsetobtainedfromfieldsurveysalongtheTianjingshanfaultzoneandestimatingtheagesofthreetypesofgullies,thestrike-slipratesalongthefaultzonearediscussedindifferenttimeintervalsandfaultsegments.Theresultssuggestthattheintensityofactivityalongthefaultzoneisnotstrong,butthedifferencesbetweendifferenttimeintervalsandfaultsegmentssincethelatePleistocenehavebeenobvious.Theaverageratesrangefrom0.23mm/ato1.62mm/a.Thelargestaveragerateis1.40mm/a,whichoccurredintheearlyandmiddleoflatePleistocenealongthewesternsegmentofthefaultzone.SincethelatestageofthelatePleistocene,thecenteroffaultingactivityofthefaultzonehasshiftedtothemiddlesegment,andtheaverageslipratesrangehavechangedfrom1.30mm/ato1.63mm/a.