简介：Thecoefficientofdeffractionofregularwavesbehindthedoublejettyhasbeencomputedinthispaperatfirstbyusingthesingularitydistributionmethod.Themodeltestsconductedfordiffractionofirregularwaveswithaunidirectionalfrequencyspectrumhaveconfirmedgoodagreementbetweenthedatameasuredinexperimentsandtheresultscomputedbythesingularitydistributionmethodplusthelinearsuperpositionmethodfortheenergyofcomponentwavesinthedirectionalfrequencyspectra.Therefore,thistechniqueforcomponentwavesinthedirectionalspectrahasbeenfurtherusedtocomputediffractionofirregularwavesofmultidirection,includingtheemploymentofadirectionaldistributionfunctionofthecos2type,aswellastheBretschneider-Misuyannfrequencyspectrum.

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简介：Ozonesondes广泛地被用来从表面获得臭氧集中侧面到上面的空气。一种双房间ozonesonde在大气的物理(国际机场)的研究所被开发了，中国科学院(把IAP称为ozonesonde)基于在开发singlecellGPSO3ozonesonde的过去的20年的以前的经验。国际机场ozonesonde具有电气化学的集中房间(ECC)类型。对IAPozonesonde的详细描述第一在现在的纸被提供，从执行评估它的表演的一系列发射由结果的一个演讲列在后面。分析涉及象一个布鲁尔分光光度计一样从GPSO3和ECCozonesondes(模型类型ENSCI-Z)把它的观察与大小作比较。结果证明IAPozonesonde是在GPSO3ozonesonde上的广阔改进，能捕获垂直臭氧结构很好并且在对ECCozonesonde大小的好同意。在臭氧的平均差别在IAP和ECCozonesondes之间的部分压力是从表面的0.3mPa到2.5km，从2.5～9km并且通常的结束到零为比9km高的层的不到1mPa。明显的偏差被减少的泵流动率多半在需要推进改进的IAPozonesonde引起。IAPozonesonde侧面测量的全部的臭氧数量与有6%的相对差别的酒商数据是高度可比较的。IAPozonesonde和它的强壮的性能的开发在不久的将来将肯定在中国上加速臭氧侧面的常规观察的进程以及一般来说为臭氧研究提供更多的数据。

简介：Thespudcanfoundationhasbeenwidelyusedinoffshoreengineeringforjack-uprigs.However,'punchthrough'failureoftenoccurswhereastrongersoillayeroverlaysasoftersoillayer.Inthisstudy,spudcanpenetrationintodoublelayeredsoilsisinvestigatednumerically.Thesoilprofileissetupasastrongersoillayeroverlayingasoftersoillayer,withthesoilstrengthratio(bottomsoilstrength/topsoilstrength)variedfrom0.1to1.0(1meansuniformsoil).Thebearingbehaviourisdiscussedandthebearingcapacityfactorsaregivenforvariouscasesinvolvingdifferentlayerthicknessesanddifferentstrengthratiosofthetwoclaylayers.Thedevelopmentoftheplasticzonesandtheeffectofsoilselfweightonthebearingcapacityarealsodiscussed.Fromthisstudy,itisfoundthat,whenaspudcanisdistantfromthesoillayerboundary,thespudcancanbeanalysedwithsinglesoillayerdata.However,whenaspudcanbecomesclosertothesoilboundarylayer,theinfluenceofthelowersoftsoillayerissignificant,andthebearingcapacityofthespudcandecreases.Thecriticaldistanceisanindicationoftheoccurrenceof'punchthrough'failure.Thecriticaldistancebetweenthespudcanandthelayerboundaryislargerforaroughspudcanthantheoneforasmoothone,andthecriticaldistancedecreaseswithincreasingsoilstrengthratio.Thedepthofcavityformedduringinitialspudcanpenetrationdependsonthetoplayersoilstrength,soilstrengthratioandunitsoilself-weight,andthecavityaffectsthespudcanbearingbehaviouraswell.

简介：Mobileoffshoredouble-causewaypiersystem,atypeofseashoreunloadingequipment,consistsoftwogroupsofmultipleconnectedsemi-submersiblemodules.Thisstructurehaswideapplicationbecausemostofthemiddleorminitypeofvesselsandshipscanbemooredtoit.Basedontheanalysisofcomputationalmethodsofmulti-bodymotionresponse,ahydrodynamicmodelissetupandthethree-dimensionalpotentialtheoryinfinitedepthisadoptedtocalculatethethree-dimensionalmotionresponseofthissystem.ThedoubleP-Mspectrumisusedtoanalyzethemotionresponseinirregularwaves.Differentwavedirectionsarespeciallytakenintoconsideration,duetotheirvariouseffectstothemotionresponse.Furthermore,thecalculatedresultiscomparedwiththatoftheexperiment,anditisprovedthatsway,heave,pitchandyawmotionaregreatlyconstrainedbymooringsystem.Thecomparisonalsoindicatesthatthemodelcanforecastthemotionperformanceofthetarget,andthatthecalculatedresultcanalsobeusedasreferenceinconnectorandmooringsystemdesign.

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.

简介：Thespectrumshapecharacteristicsofdouble-peakedseawavespectiaactuallymeasuredintheJiaozhouBaywereanalysedandonerepresentationofdouble-peakedseawavespectrawithsix-parameterswhichcanbedeterminedfromagivenseawavespectrumisproposedinthispaper.Afterverifyingbyfittingprocesswiththedatasetsofdouble-peakedseawavespectrameasuredintheJiaozhouBay,itcanbeseenfromtheresultsthattherepresentationmentionedabovemaybeusedtoexpressthedouble-peakedseawavespectrageneratedintheJiaozhouBayundervariousseastates,andthattheabsolutevaluesofmaximumdeviationindex(D.I.)donotexceed30.0.

简介：Intheautomationofidentificationoflandscapefeaturesthevaguenessarisesfromthefactthattheattributesandparametersthatmakeupalandscapevaryoverspaceandscale.Inmostofexistingstudies,thesetwokindsofvaguenessarestudiedseparately.Thispaperinvestigatestheircombinationinidentificationofcoastlandscapeunits.Fuzzysettheoryisusedtodescribethevaguenessofgeomorphicfeaturesduetothecontinuityinspace.Thevaguenessresultedfromthescaleofmeasurementisevaluatedbystatisticindicators.Thedifferencesoffuzzyobjectsderivedfromdataatdifferingresolutions(insizefrom3×3cellsto25×25cells)arestudiedinordertoexaminethesehigher-orderuncertainties.

简介：用U.S.National，环境预言/公民的中心在1湯挠獡?桔?敲?瑬?桳睯摥琠慨?桴牥?獩愠挠楲楴慣?楤瑳湡散搠?潦?体噄?为大气的研究分析数据集中湩戠牡'覙H楮?瑡潭灳敨敲圮敨?桴?楤瑳湡散戠瑥敷湥猠灥牡瑡摥瘠牯楴散?獩猠慭汬牥琠慨?牯攠畱污琠?绥鳟彌B?潶瑲捩獥猠汥?牯慧楮敺椠Ь

简介：为在位置精确上获得高度的二种方法的效果被分析，并且错误表情被推出。当那个高度错误在东方西方位置误差上有小效果，在二个盒子中，放的精确上的一样的高度错误的效果是相同的许多模拟结果表演，和二个高度错误影响放精确的规则能被表示，但是在thesouth北方位置误差上有大效果。

简介：根据Beidou双星的特征安置系统(作为缩写：双星位置)，双星位置/罪恶的最佳的断言模型综合系统被提出，它能从为综合系统最佳地放系统到谓语，然后到正确罪恶的双星使用推迟的位置信息，并且负担得起一些航行参数的综合结果。以便验证过滤器的一致性，为一个过滤器的一致性的标准也被学习，并且测试统计基于过滤方法与综合系统一致的实际测量数据表演被给实验。

简介：Anewalgorithm,calledasDouble-EpochAlgorithm(DEA)isproposedinGPSrapidpositioningusingtwoepochsinglefrequencyphasedatainthispaper.Firstly,thestructurecharacteristicofthenormalmatrixinGPSrapidpositioningisanalyzed.Then,inthelightofthecharacteristic,basedonTIKHONOVregularizationtheorem,anewregularizerisdesignedtomitigatetheill-conditionofthenormalmatrix.TheaccuratefloatambiguitysolutionsandtheirMSEM(MeanSquaredErrorMatrix)areobtained,usingtwoepochsinglefrequencyphasedata.CombinedwithLAMBDAmethod,DEAcanfixtheintegerambiguitiescorrectlyandquicklyusingMSEMinsteadofthecovariancematrixoftheambiguities.Comparedwiththetraditionalmethods,DEAcanimprovetheefficiencyobviouslyinrapidpositioning.So,thenewalgorithmhasanextensiveapplicationoutlookindeformationmonitoring,pseudokinematicrelativepositioningandattitudedetermination,etc.

简介：在这份报纸，一个理想化的不安追随者“巨浪流动概念的模型”为典型Meiyu，正面的结构被设计包括多相的microphysicalparameterization用一个非静水力学的、完整可压缩的暴风雨规模模型在Meiyu前面向中央规模结构解释ofrainbands。另外，敏感周围的南方的风的垂直分发的数字实验被进行调查中央规模的产生机制两倍雨线。数字实验的结果证明入侵的凉爽、干燥的downdraft由环境向上在北方的风戏加强了一个很重要的角色到中央规模的产生和维护两倍rainbands.Moreover，入侵的干燥、凉爽的downdraft的紧张和规模与当西的喷气的加速向上发生时，集体调整导致的第二环流的紧张有关。

简介：Undergroundlifelineengineering(ULEforshort)inmoderncitydemandstheap-preciationofanactivefaultinburiedbedrock.Generallyspeaking,alargenumberofurbangeologicaltexturesofabasementmayallbesimplifiedintoadualgeologicaltexturemodel,i.e.,theupperpartofthebasementconsistsofloosecoveringlayerandthelowerpartconsistsofbedrock.Thestudyofanactivefaultshouldincludethreepartsofcontents,i.e.,todeterminethelowertimelimitofactivityofthefault,andthetimelimitmustberecognizedbybothofdesigningengineersandgeolo-gists;onthebasisofthestudiesofrepetitionperiodsofearthquakeoccurrencetodeter-minewhetherthefaultmovesornotduringtheallowedtimeofefficacyofbuildingsandconstructions;forthesakeofengineeringpractice,theactiverateofthefaultmustbegiven.ThefaultwithdifferentactivemechanismhasdifferenteffectsontheULE.Theauthorsstudiedtheeffectoflateralnon-uniformoverburdensiteontheULEbymeansofthesu

简介：在Yangjiang的大约400地震的地点，广东省被决定用两倍，差别地震地点算法(DDA)。seismicity模式变得从分离格子专注。Yangjiang地震顺序表演的破裂特征在NW和NE方向的结合的分布。有30的一个角度和一段201on的有30的一个角度和一段30km的主要分发趋势NE和剧降NE，和次要的分发趋势NW和剧降SE。焦点的深度是5km15km。Enping地震顺序的分发，离Yangjiang不远，是趋势NW。在hypocenter分发和地质的结构之间的关系被讨论。

简介：Almosthalfoftheoceanicwatercolumnsexhibitdouble-diffusion.Theimportanceofdouble-diffusioninglobaloceans'saltandheatfluxes,water-massformationandmixing,andcirculationisincreasinglyrecognized.However,suchanimportantphysicalprocessintheoceanhasnotbeenwellstudied.Oneofthereasonsisthedifficultyofparameterizingandquantifyingtheprocesses.Thepaperpresentedhereattemptstoquantifythedouble-diffusivefluxesofsaltandheatintheocean.Previousqualitativeanalysisbyapplyingthewater-massTurnerangle,mTu,totheNorthPacificIntermediateWater(NPIW)layershowedafavorableconditionforsalt-fingeringintheupperNPIWduetotheoverlyingwarm/saltywaterabovethecold/freshNPIWcore,andadoubly-stableconditioninthelowerNPIWwherepotentialtemperaturedecreaseswithdepthwhilesalinityincreases,inducingdoublestratificationwithrespecttobothpotentialtemperatureandsalinity.Thepresentstudygivesaquantitativeestimateofdouble-diffusivefluxesofsaltandheatcontributedbysalt-fingeringintheupperNPIWlayer.

简介：Usingfoursatellitedatasets(TOMS/SBUV,OMI,MLS,andHALOE),weanalyzetheseasonalvariationsofthetotalcolumnozone(TCO)anditszonaldeviation(TCO*),andrevealtheverticalstructureoftheOzoneLow(OV)overtheAsiancontinent.Ourprincipalfindingsare:(1)TheTCOovertheAsiancontinentreachesitsmaximuminthespringanditsminimumintheautumn.TheOzoneLowexistsfromMaytoSeptember.(2)TheOzoneLowhastwonegativecores,locatedinthelowerandtheupperstratosphere.Thelowercoreisnear30hPainthewinterand70hPaintheotherseasons.Theuppercorevariesfrom10hPato1hPaamongthefourseasons.(3)ThepositionoftheOzoneLowinthelowerandtheupperstratosphereovertheAsiancontinentshowsseasonalvariability.

简介：Thedaily1°×1°dataoftheAviation(AVN)model,theblackbodytemperature(TBB)dataofcloudtop,andcloudimagesbygeostationarymeteorologicalsatellite(GMS)areusedtoidentifyadew-pointfrontneartheperipheryofthewesternPacificsubtropicalhigh(WPSH).Theresultsclearlydemonstratetheexistenceofthedew-pointfront,anditsthermodynamicanddynamicstructuralcharacteristicsareanalyzedindetail.Thedew-pointfrontisatransitionalbeltbetweenthemoistsouthwestmonsoonflowandthedryadiabaticsinkingflowneartheWPSH,manifestedbyalargehorizontalmoisturegradientinthemid-lowertroposphereandconjugatedwiththemei-yufronttoformapredominantdouble-frontstructureassociatedwithintenserainfallinthemei-yuperiod.Themei-yufrontislocatedbetween30°and35°N,verticallyextendsfromthegroundleveltotheupperlevelandshiftsnorthward.Thedew-pointfrontistothesouthofthemei-ynfrontandliesupagainsttheperipheryoftheWPSH.Generally,itislocatedbetween850hPaand500hPa.Onthedew-pointfrontside,thesouthwesterlyprevailsatthelowerlevelandthenortheasterlyattheupperlevel;thiswinddistributionisdifferentfromthatonthemei-yufrontside.Verticalascendingmotionexistsbetweenthetwofronts,andtherearedescendingmotionsonthenorthsideofthemei-yufrontandonthesouthsideofthedew-pointfront,whichformasecondarycirculation.Thedynamicsofthedoublefrontsalsohavesomeinterestingfeatures.Atthelowerlevel,positiveverticalvorticityandobviousconvergencebetweenthetwofrontsareclearlyidentified.Atthemid-lowerlevel,negativelocalchangeofthedivergence(correspondingtoincreasingconvergence)isoftenembeddedinthetwofrontsoragainstthemei-yufront.Mostcloudclustersoccurbetweenthetwofrontsandpropagatedownstreaminawave-likemanner.

简介：在两倍旋涡(SODV)和台风的形成的组织工会之间的关系与大气的Research/Penn州的Mesoscale模型(MM5)的第五产生的国家中心基于六个数字实验被讨论，进一步的讨论与结果显示出的真实台风case.The被做有批评距离dc为在baroclinicatmosphere.When的SODV，在分开的旋涡之间的距离比小或等于dc，进自我组织的双旋涡

简介：Amodelofdoublemediumaquiferisbrieflyintroducedinthispaper,apartialdifferentialequationaboutseepagemotionderivedbythetidalstressinthemodellayerisdeduced.ComparedthisequationwithBoultonequationusedintheunconfinedaquifer,anewlaggingsupplywatertermisobtained,whichestablishthephysicalbasisforinterpretingthephasedelayphenomenaofwellwaterlevelcausedbythesolidtide.Byanalyzingthepartialdif-ferentialequation,itisfoundthatthislaggingsupplytermisrelatedwiththefluctuationoftideoccurredinthedeepaquifer.