简介：卡梅伦·芒杰自己穷困潦倒生活无着落，他能给那个不名一文的陌生人些什么呢？可奇迹还是发生了……

简介：鞋类主要用商业地可得到的产品被评估了，当一些研究人员使用了特定的鞋时。因此，鞋的各种各样的参数的效果的理解是相当有限的。在最近的年里发明的footbed模拟器允许在安静的站要学习的参数的一个范围。在脚跟高度，位子长度，材料，楔角度和脚趾春天评估变化的压力变化的察觉的感觉和中心能被用来。这篇论文打算以研究和鞋的实际生产显示出footbed模拟器的价值。研究与二脚跟高度表现了，位子长度和材料和三个楔角度的三联合证明察觉的感觉是仔细与压力的中心有关。结果也证明最佳footbed有一种显著地不同的察觉的感觉。因此，footbed模拟器是产生特定的鞋类图案的一个理想的方法。

简介：Theanalysisofthedataofmodeltestsoftwolargedeepwharvesandmonographicexperimentalstudiesshowthattwoaspectsaretobeimprovedsoastopredictthewaveupliftforcesonthebottomofacircularcylinder.Thefirstaspectistheupliftpressuredistributiononthebottom,andthesecondisthecorrectdeterminationofthephaseformaximumhorizontalwaveforces.Thesecondproblemhasbeensolved.Synthesizingtheresultsoftheoreticalanalysisandexperiments,wesuggestadiagramforthedeterminationofthephasewhenthemaximumhorizontalwaveforceappears.Onthebasis-efthediagramthesimultaneouswaveupliftforcescanbeobtainedforthestructuralstabilityanalysis.

简介：Amethodfortheinversionofthetransmissionlossesforthebottomreflectionlossisproposedonthebasisofthetheoryofthesmooth-averagedsoundfield.Theprocedureoftheinversionisbasedonthecri-terionoftheleastsquareerrorinthetransmissionlossesbetweencalculationandmeasurement.ByusingtheGauss-Newtoniterativeapproach,thenon-linearleastsquarealoqrithmisequivalenttosolvingase-quenceoflinearedleastsquareproblems.ThephysicalcausesoftheinstabilityoftheinvertionproblemarediscussedandthestabilityisimprovedbymeansoftheLevenberg-Marquardtmethod.Bothnumericalsimulationswithnoiseandexperimentalresultsshowthattheinversionforthebottomreflectionlossofsmallgrazinganglehashighprecisionandthecertainperturbationinthemeasuredtransmissionlossesdoesnotleadtoseriousdeviationintheinversionresultofthebottomreflectionloss.

简介：我们为达到块共聚物(BCP)的底部形态学表明一条一般途径薄电影。在我们PS-b-PMMA电影上的以前的大小，BCP电影的表面形态学地图揭示了在哪儿的不同订的政体对接口和这些形态学共存的中间的政体主要垂直或平行的柱体东方。然而，这个更早的工作没探索BCP薄电影的底部形态学。在这研究，我们在在表面上有垂直柱体形态学的演员组块共聚物电影在稳固的底层附近调查了块共聚物形态学。

简介：ThebiomassesoffishesatthebottomlayeroftheBohaiSeaareextimatedbyanalysingthedataonsamples(447hauls,morethan0.2millioninnumberor20tinweightoffishes)collectedmonthlybyourinstitutefromApril,1982toMay,1983byapairofbottomtrawlsthroughtheBohaiSea.Theexploitationproblemsarealsodiscussedinthispaper.

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简介：ThispaperpresentsabriefreviewoftheresultsontheinteractionbetweenwavesandmuddybottomobtainedduringthelastdecadeincludingtheresultsobtainedbytheauthorattheCoastalEngineeringLaboratoryofTianjinUniversity.

简介：Theprincipleofthespatialcorrelationcharacteristicsofsea-bottombackscatteringwasexpounded.TheKirchhoffmodelisintroducedtosimulatesea-bottombackscatteringandthespatialcorrelationiscalculated.Somesedimentcharacteristicparameters,suchastheratioofsedimentmassdensitytowatermassdensity,theratioofsedimentsoundspeedtowatersoundspeed,theattenuationcoefficientofsoundwaves,thestrengthandexponentofseabottominterfaceroughnessspectrum,areconsideredwhilesimulatingandtheirinfluencesonspatialcorrelationareanalyzed.Byestablishingtheexpressionsofthesedimentcharacteristicparameterswiththelogarithmicsedimentgrainsize,thevariationtendencyofthespatialcorrelationversusthelogarithmicsedimentgrainsizeisobtained.Thewidthofthemajorlobeofthespatialcorrelationfunctionnarrowsasthelogarithmicsedimentgrainsizeincreases.Thecomparisonsbetweensimulateddataandin-situdatacollectedinOctober2007haveproventhattheirspatialcorrelationfunctionwaveformsagreewellunderthesamesedimentcharacteristics.

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简介：ThepresentworkadoptstheCOHERENS-SWANmodeldevelopedbythefirstauthorthroughcouplingthree-dimensionalhydrodynamicmodel(COHERENS)andthird-generationwavemodel(SWAN).InsidetheCOHERENS-SWAN,theSWANisregardedasasubroutineandthetime-andspace-varyingcurrentvelocityandsurfaceelevationareobtainedfromtheCOHERENS.Wave-enhancedbottomshearstress,waveinducedsurfacemixinglengthandwavedependentsurfacedragcoefficienthavebeenintroducedintotheCOHERENS.Secondly,aswave-enhancedbottomshearstress('bottomshearstress'describedasBSSsometimesinthisarticle)isconcerned,amodifiedbottomshearstressGrantandMadsenmodelwhichintroducesrandomwavefieldisgivenandintroducedtoCOHERENS-SWAN.COHERENS-SWANisalsoadoptedtosimulatethree-dimensionalflowintheYellowRiverDeltawithwave-currentco-existing.Fournumericalexperimentsweregiventostudytheeffectsofwave-currentinteractiononenhancingbottomshearstress.Thesimulatedcurrentvelocities,waveheightandwaveperiodmatchwellwithfieldmeasurementdata.Thesimulatedsignificantwaveheightandwaveperiodforthecasewithconsideringtheeffectsofcurrentcangivebetteragreementwithmeasurementdatathanthecasewithoutinvolvingtheeffectsofcurrent.Theintroductionofrandomwavegenerateslowerthebottomshearstressthanthecasewithoutintroducingit.Thereareobviousdifferencesbetweenbottomshearstressoftwowayinteractionandonewayinteraction.VelocityfieldobtainedbytheCOHERENS-SWANisreasonableaccordingtopreviousstudiesandmeasurements.

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简介：NanxiaohongandNangangmainsouthchannelarechosenasthetypicalfloodandebbchannels.HydrodynamicsanalysisbasedonfieldhydrologicalandsedimentdataisconductedwithGao-Collinsmodeltoanalysesedimenttransporttrends.Also,thegrainsizedistributionanalysisofthebottomsedimentsampledinSep.2001isusedasthebaseoftheanalysis.TheresultshowsthatthesedimentinNanxiaohongisfromtherivemoutharea.Thesedimenttransportsupwardswiththefloodflowwhichisstrongerthantheebbflow,i.e.,inthedirectionofSE-WN.Thesedimentinmainsouthchannelcomesfromupward.Theytransportdownwardswiththeebbflow,whichisstrongerthanthefloodflow,i.e.,inthedirectionofWN-SE.Thedirections,sourcesandmechanismofsedimenttransportareidentifiedaccordingtocomprehensiveanalysesoftheobserveddataonhydrodynamicsandsediment.

简介：在隧道流动由二层组成由底部波动散布飞机表面波浪被假设隧道的床由多孔的材料组成调查。液体的上面的表面被一个僵硬的盖围住，隧道在水平方向是无界的。在那里存在相应于一个内部波浪的一个仅仅波浪模式。为小波动，简化不安分析被用来首先以包含描述底部的形状功能的积分获得顺序思考和传播系数。为正弦曲线底部波动和指数地腐烂的底部地形学，第一命令系数被计算。在正弦曲线底部的情况中，第一个顺序传播系数被发现相等消失。数字结果在很多个数字图形地被描绘。

简介：AstudyoftsunamieventsintheEast(Japan)SeausingcontinuousGalerkinfiniteelementmodel,aimingatreproducingtsunamiwavesgeneratedbyunderwaterearthquakesin1983and1993respectivelyhasbeenperformedfocusingonthegeographicextentofatopographicfeatureintheEast(Japan)Sea.Numericalmodelscanbethepropertoolstostudythecombinedeffectsofrealistictopography.Subsequently,usingtheFEMbasedtwo-dimensionalmodelwehavesimulatedthesmoothedandflattenedtopographiceffectsbyremovalofYamatoRiseandseamountsforthecasesoftthe1983Centralregionearthquaketsunamiandthe1993southwesternHokkaidoearthquaketsunami.TheresultshaveshownthattherewillbehighertsunamisalongtheeasterncoastsofKoreaingeneralexceptsomeareas,likeSokchowithremovaloftopographichighs,thusprovidingcomplicatedbottomtopographyoftheEast(Japan)Seaaseffectivetsunamienergyscattering.

简介：Asoneofthekeysafetyproblems,themotionperformanceandtouchingseabottomofaFPSOarepaidmuchattentionbytheoceanoilcompanieswhentheFPSOisexposedtosurvivalstormsintheshallow-waterworkingareas.Inthispaper,timedomainnumericalsimulationsarecarriedoutona160kDWTFPSOwithaYokemootingsystemmooredintheBZ25-1oilfieldwithawaterdepthof16.7m.Theresultsarecomparedwiththoseofthecorrespondingmodeltests.Goodagreementshowsthatthetime-domainsimulationscanbeusedtopredicttheperformanceoftheFPSOinshallow-waterreasonably.ItisfoundthatthetouchofseabedbyafullyloadedFPSOoccurredfewtimesundersurvivalstormconditions.Therefore,theFPSOshouldbelessloadedthanthatinthefullyloadedconditionunderthesurvivalstorms.

简介：基于为计算健全向量的有弹性的寓言的方程方法，领域被学习了的方法。水里的向量领域和相应震波地被计算了为在有有弹性的楔底部的海洋的环境下文健全。为健全来源的不同频率和深度的健全领域分发上的效果被研究了，进底部有声能漏的结果表演，漏发生了的位置能被海洋深度的比率决定到波长，作为与正常相比模式理论。

简介：Inordertoimproveargonblowingefficiencyina40tonladle,numericalsimulationandwatersimulationexperimentsofthebottomargonflowwereperformed.Relationshipsamongtheladlemixingtime,slageyearea,differentblowingflowrates,anddifferentblowingpositions(0,0.56R,0.62R,0.67R)arediscussed.Resultsshowedthattheladlemixingtimedecreasedwhentheargonblowingbrickdistance(frombottomcenteroftheladle)increased,anddecreasedsignificantlywhentheblowingflowincreasedfrom70to130L/h.Whentheblowingflowincreasedandexceeded130L/h,thestirringeffecttendedtobestable,andtherewaslittleeffectontheladlemixingtime.Theslageyeareaincreasedastheargonbrickdistanceincreased,andwaslargerwhentheargonblowbrickwasneartheladlewall.Wallshearstresssignificantlyincreasedasthebrickdistanceincreasedandwasconcentratedattheslagwallneartheargonflowbrick;thisiscalledthemostseriouserosionwall.Theaveragewallshearincreasedexponentiallywithincreasingargonblowingbrickdistance.

简介：Watertankexperimentsarecarriedouttoinvestigatetheconvectionflowinducedbybottomheatingandtheeffectsoftheambientwindontheflowinnon-symmetricalurbanstreetcanyonsbasedonthePIV(ParticleImageVisualization)technique.Fluidexperimentsshowthatwithcalmambientwind,theflowsinthestreetcanyonarecompletelydrivenbythermalforce,andtheconvectioncanreachtheupperatmosphereofthestreetcanyon.Horizontalandverticalmotionsalsoappearabovetheroofsofthebuildings.Thesearetheconditionswhichfavortheexchangeofmomentumandairmassbetweenthestreetcanyonanditsenvironment.Morethantwovorticesareinducedbytheconvection,andthecomplexcirculationpatternwillvarywithtimeinawiderstreetcanyon.However，inanarrowstreetcanyon，justonevortexappears.Withalightambientwind,thebottomheatingandtheassociatedconvectionresultinjustonemainvortex.Astheambientwindspeedincreases,thevortexbecomesmoreorganizedanditscentershiftsclosertotheleewardbuilding.