简介：Moststudiesofseismicnoisecross-correlation(NCC)havefocusedonregional/continentalscaleimagingusingempiricalsurface-waveGreen’sfunctionsextractedfromprimary(0.05–0.08Hz)andsecondary(0.1–0.16Hz)microseisms.Inthiswork,wepresenttheNCCresultsathigherfrequencies([0.5Hz)from6monthsseismicnoiserecordedbyalocalarray(*4kmaperture)deployedalongtheCalicofaultintheMojaveDesert,California.BothfastandslowpropagatingwavesareobservedfromtheNCCrecord-sections.WecomparetheNCCsfromsensorpairsthatshareacommonsensorwiththerecordsofaboreholeshotlocatedveryclosetothiscommonsensor.Theresultshowsagoodmatchoftheslowsurface-wavearrivals,indicatingthattheNCCmethodisabletorecoverunbiasedsurface-waveGreen’sfunctionsatlocalscales.Thestrongbody-waveNCCcomponentiscausedbythePwavesgeneratedoffshoreCalifornia.AlongaSW–NEprofileacrossthefault,weobserveapparentP-wavearrivalsandtheirreflections,whichcanbeexplainedbyalow-velocityzone(LVZ)alongtheCalicofault.WecalculatetheLVZwidthtobe*2.3km,andtheP-wavevelocityreductionwithintheLVZtobe*35%.TheseestimatesareconsistentwithotherevidenceforarelativelywideLVZalongtheCalicofault.

简介：在那里存在，这被证明了在垂直的热之间的生气联合由使用线性热力学的狂暴的运输和垂直速度。这结果断言热的垂直部件狂暴的运输流动由垂直潜在的温度梯度的运输和垂直速度的联合运输组成。在这篇论文，垂直的热上的垂直速度的联合效果狂暴的交通被从大气的边界层使用观察数据决定联合系数的十字验证，并且狂暴的交通的一系列重要性质外面被打开。这些性质显示生气联合系数是尺寸的对数功能不太垂直的速度和尺寸更少高度，并且不仅与磨擦速度u*,有关而且到联合粗糙高度zW0和联合温度T垂直速度的W0。另外，仅仅当垂直速度大小遵循限制|W/u*时，功能关系建议那|≠1，并且在水平z然后，垂直速度导致生气联合的W0,垂直的热上的效果狂暴的运输流动。生气联合理论和试验性的结果提供挑战给传统的狂暴的K闭合理论和Monin-Obukhov类似理论。

简介：TheChinesemainlandisdividedintosometectonicblocksbynearlyNE-andEW-orientatedfaults.MeanwhilestrongearthquakesintheChinesemainlandusuallyclusterintimeandspace.Wecall2earthquakesingroups2.TectonicblocksseparatedbyfaultsandearthquakesingroupsareprominentfeaturesofthetectonicsoftheChi-nesemainland.Correlationbetweenmovementoftectonicblocksandgroupsofearthquakesisdiscussedinthispaper.Theresultsshowthatearthquakesingroupsoftenoccurredatoneorseveralblockboundaryfaults.Thereleasedelasticstrainenergyisbuiltupinthesameperiodsandaroundblocks.Itmeansthatstrongearthquakesingroupsaremainlycausedbymovementofblocks.Fourtypesofblockmovementareidentifiedbasedongroupearthquakes:movementalongasingleboundaryofablock(oracombinedblocks),movementofasingleblock,movementofmulti-blocks,andmovementinblockinteriors.IfweconsiderdistributionofallstrongearthquakesoccurredintheChinesemainland,themovementalongasingleboundaryofablockismorepopularoneinducingstrongearthquakes.Butifweonlyconsiderearthquakesingroupsratherthansingleearthquakesthemovementofablockdominatesamongfourmodes.StatisticswithrespecttogroupearthquakesshowthattheTaihangshanmountainandtheNorthChinablockaremuchactiveintheeasternpartofChinesemainland,andinwesternpartofChinesemainlandtheactiveblocksareSichuan-YunnanandtheKunlun-Songpanones.

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简介：SequenceboundaryisstudiedindetailinreferencetothePermianGuadalupianLopingianboundary,basedonhighresolutioncorrelationofconodootzones.Aconceptualsynchronousstratigraphicboundary,correspondingtotheageofthesequenceboundarydatedintheconformableportionofthesequenceboundary,isdefinedasthesequencechronostratigraphicboundary(SCB).Thesequenceboundaryisprovedtobedualinnatureinregardstothesynchronyanddiachroneityofstratigraphicboundaries.Themeritsofthesequenceboundaryinstratigraphicsubdivision,correlationandclassificationareelucidatedincomparisonwiththelithostratigraphicboundary,thebiostratigraphicboundaryandthetraditionalapproachoftheglobalstratotypesectionandpoint(GSSP).ByintegratingthevirtuesofthesequenceboundaryandtheGSSP,itisproposedthattheGSSPshouldbeestablishedintheconformableportionoftherelatedsequenceboundary.Theboundaryestablishedinlightofthisapproachisdefinedas

简介：基于在里面situ在中国的Bohai海的光大小，属于一个典型case-2水区域，我们学习了象它的空间分发那样的DCM(深叶绿素最大值)的特征，垂直侧面，等等。我们发现当叶绿素最大值的深度是比较地小的时，甚至在混浊的沿海的水区域，总是在蓝绿色的光谱带在叶绿素最大值和收到thesatellite的信号的集中之间有好关联；关联在表面叶绿素集中和收到卫星的信号之间比那甚至好。如果在中国的Bohai海的叶绿素集中的竖直分布的全面知识是可得到的，甚至在混浊的沿海的水区域存在的强壮的关联显示检索DCM的集中的一张海洋分涂参考图能为沿海的水被构造。

简介：Theconceptofhealthmonitoringisakeyaspectofthefieldofmedicinethathasbeenpracticedforalongtime.Acommonlyuseddiagnosticandhealthmonitoringpracticeispulsediagnosis,whichcanbetracedbackapproximatelyfivethousandyearsintherecordedhistoryofChina.Withadvancesinthedevelopmentofmodemtechnology,theconceptofhealthmonitoringofavarietyofengineeringstructuresinseveralapplicationshasbeguntoattractwidespreadattention.Ofparticularinterestinthisstudyisthehealthmonitoringofcivilstructures.Itseemsnatural,andevenbeneficial,thatthesetwohealth-monitoringmethods,oneasappliestothehumanbodyandtheothertocivilstructures,shouldbeanalyzedandcompared.Inthispaper,thebasicconceptsandtheoriesofthetwomonitoringmethodsarefirstdiscussed.Similaritiesarethensummarizedandcommentedupon.Itishopedthatthiscorrelationanalysismayhelpprovidestructuralengineerswithsomeinsightsintotheintrinsicconceptofusingpulsediagnosisinhumanhealthmonitoring,whichmaybeofsomebenefitinthedevelopmentofmodernstructuralhealthmonitoringmethods.

简介：因为他们是为计划的很重要的参数，重要波浪高度(SWH)和海表面风速度的气候学是气象学和海洋学的领域里的担心的事近海结构和轮船路由。TOPEX/Poseidon高度表，从1992年9月收集了数据大约13年到2005年10月，在大多数世界海洋上测量了SWH和表面风速度。在这份报纸，全球空间与时间的分布的研究和SWH和海表面风速度的变化用TOPEX/Poseidon高度表数据集合被进行。变化的范围和特征是分析份量上为和平，大西洋，和印度洋。不平的波浪和大海表面风的区域正是局部性的，并且在SWH之间的关联和海表面风速度分析了。

简介：Globalseismicitycatalogsaresufficientforcharacterizingdoubleseismiczones(DSZs)insubductingslabandfacilitatetoestimatelayerseparationwithoutinconsistentuncertaintiesaslocalcatalogs.PreviousstudieshaveshownthecorrelationbetweenDSZslayerseparationandplateagewhilecorrelationforthoseyoungerthan～60Maissuspicious.ThelackingofDSZswithlayerseparationlessthan10kmfurthermakesitdifficulttopreciselyestimatesuchcorrelation.Thus,weincorporateeightDSZsdatadeterminedthroughlocalseismicityintoglobally-determineddatasetandreexaminesuchcorrelation.Thebestfittingresultsshowthatbothalinearmodelandasquarerootofplateagecanmathematicallyfitthelayerseparationwell.However,itisdifficulttodistinguishthesetwomodelswhenplateageisgreaterthan～20Masincetheirdifferenceislessthan2km.However,ifextrapolationispossible,bothmodelsshouldprovidephysicalinformationthatDSZswillnotformifthereisnosubductinglithosphere.Asaresult,theDSZscannotbeproduceduntiltheoceaniclithosphericagebecomesgreaterthan0.9Mainthesquarerootmodelwhilethelinearmodelgivesamisleadingresult.Assuchthesquarerootmodeldemonstratestherelationshipphysicallybetterthanthelinearone,itstillneedsfurthertestinthefuturewithmoreavailabledata,nevertheless,ourstudymightalsoprovideevidenceforthesuggestionthattheplateageisaprimarycontrolfactoroftheDSZsgeometryaswellasthesubductingprocesswhichdisregardsanylocaltectonicstresses.

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简介：Althoughmanycountries,especiallyfromthedevelopingworld,sharethemostexcitinggeologicalfeatures,geologicalstructuresandnaturalresources,researchactivitiesatvariousinstitutionsareundertakeninisolation.TheIGCPisuniqueasaninternationalProgrammethatbringstogetherseveralthousandsofscientistsfromdifferentdisciplines,tostimulatedialogueandfacilitatecommunicationamong

简介：Themixingcharacteristicsofparticlessuchasdredgedsedimentofvariablesizedischargedintocrossflowarestudiedbya3Dnumericalmodel,whichisdevelopedtomodeltheparticle-fluidtwo-phaseflow.TheEulerianmethodwiththemodifiedk-εparameterizationofturbulenceforthefluidphaseisusedtosolvefluidphase,whileaLagrangianmethodforthesolidphase(particles),boththeprocessesarecoupledthroughthemomentumsources.Inthemodelthewaketurbulenceinducedbyparticleshasbeenincludedasadditionalsourceterminthek-εmodel;andthevariabledriftvelocitiesoftheparticlesaretreatedefficientlybytheLagrangianmethodinwhichtheparticlesaretrackedexplicitlyandthediffusionprocessisapproximatedbyarandomwalkmodel.Thehydrodynamicbehaviorofdumpingacloudofparticlesisgovernedbythetotalbuoyancyofthecloud,thedragforceoneachparticleandthevelocityofcross-flow.Thecomputedresultsshowaroughlylinearrelationshipbetweenthedisplacementofthefrontalpositionandthelongitudinalwidthoftheparticlecloud.Theparticlesizeinthecloudandthevelocityofcrossflowdominatetheflowbehavior.Thecomputedresultsarecomparedwiththeresultsoflaboratoryexperimentsandsatisfactoryagreementisobtained.

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简介：Themethodsofdeformationanalysisandmodelingatsinglepointarerealizedeasilynow,butavailableapproachesdonotmakefulluseoftheinformationfrommonitoringpointsandcannotrevealintegrateddeformationregularityofadeformablebody.Thispaperpresentsafuzzycluseteringmethodtoanalyzethecorrelativerelationsofmultiplepointsinspace,andthenthespatialmodelforapracticaldangerousrockmassintheareaofThreeGorges,YangtzeRiverisestablished,inwhichthecorrelationofsixpointsinspaceisanalyzedbygeologicalinvestigationandfuzzysettheory.

简介：Tianluoshan地点的Paleosalinity记录从泥土矿物质的measurations数据被导出，硼，锶，钡，在在Tianluoshan地点的三侧面的领域采样以后。相对的海水平变化根据实验室结果被讨论。记录显示Tianluoshan地点定位了的区域见证以前高看台的水平至少三次相对的海，在期间并且在Hemudu时期以后。基于以前的研究，这篇论文也集中于包括地讨论Hemudu文化的几个环境元素，在环境状况之间的相互关系，人的活动和开发。

简介：Remotesensingofrainfallparameters—rainfallrateandsizedistribution—byraindrop-inducedlaserbcamscintillationisanewkindofprecipitationmeasurementtechnique.ThispaperpresentedtheprimaryfieldexperimentresultsbasedonthetheoryandnumericalsimulationsbyWuandLü(1984,1985)andLüandWu(1984).Rainfallrateandsizedistributionwerededucedfromobservationsoflaserbeamscintillationandcomparedwiththoseofthefilter-papersamplingmethod.Qualitativeanalysisoftheexperimenterrorwasalsogivenhere.Alltheworkshowedthatthetheoryisapplicable,andunderproperexperimentconditions,remotesensingofrainfallparametersbylaserscintillationcorrelationisanadvancedandaccuratetechnique.

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简介：学习特殊为对器官、无机的污染的评价提供一条基线，在Pyeongchang河的表面沉积的重金属污染，南朝鲜。对学习区域的评价用完了尊重到金属污染负担，生态的风险和geoaccumulated风险。在使用的索引之上基于，一个优先级索引(Pindex)被用来评价最大的污染地点。尽管在所有沉积的水银的集中在指南下面，重要充实的污染被所有应用索引观察。是期望，污染负担索引(PLI)的价值，生态的风险索引(RI)和表明的geoaccumulation风险索引(Igeo)在在上游的区域降低重金属污染与相比下游。无可否认地，沉积对未受污染根据PLI稍微弄脏当到极其高生态的风险的高度在几件沉积样品被观察时。而且，所有样品作为每Igeo没有被污染。在Igeo的简化以后，Pindex证明最大可能与2.537的价值污染了沉积。尤其是，保护的措施应该被带去被Pindex优先考虑的高度污染的区域。无可否认地，全部的器官的碳的最大的集中，全部的氮，无机的氮，全部磷，无机磷，钙，镁，钠和钾显著地作为7.8椠?被观察?潣摬猠敷？

简介：Thisstudyproposesanewidentificationalgorithmabouttheadmittancefunction,whichcanestimatethefullsetofsixaerodynamicadmittancefunctionsconsideringcrosspowerspectraldensityfunctionsabouttheforcesandtheturbulencecomponents.ThemethodwasfirstnumericallyvalidatedthroughMonteCarlosimulations,andthenadoptedtoestimatetheaerodynamicadmittanceofastreamlinedbridgedeck.Theidentificationmethodwasfurthervalidatedthroughacomparisonbetweenthenumericalcalculationandwindtunneltestsonamovingbridgesection.