简介：ThispaperdescribesbrieflytherecentadvancesandacievementsoftheresearchprojectsconductedbytheInstituteofEngineeringMechanics(IEM)intheperiodoftheNinthFive-YearPlan(1995-2000)withthesupportoftheChinaSeismologicalBureau(CSB),Theseprojectsarerelatedwithkeyproblemsinthefieldofearthquakeengineering.Theyare:developmentofthemethodsfordeterminingearthquakeresistantdesignloadlevel,studyonmechanismsofearthquakedamagetobuildings.developmentofnewtechnologyofbaseisolation,andstudyonearthquakedamagepredictionandseismiclosssassessmentmethods.Throughthesestudies,quiteanumberofproblemshaveeensolvedandsomeofthemhaveeenappliedinearthquakeengineeringdesignandpractice.

简介：森林风景模型(FLM)是森林生态系统结构和功能的确定的表示的一个效率工具。根据识别FLM，根据开发的阶段，这篇论文总结模型的发展特征，它包括数学模型，的理论基础看台规模的FLM，空间风景模型，的主要开发生态系统过程模型的快速的开发作为优先级，并且开发多因素驾驶的结构和过程的时期。根据不同FLM的特征，这篇论文以机制，性质和应用程序分类存在FLM，并且详细描述模型的不同类型的鉴定，优点和劣势。它从是空间模式和生态的过程的变化的二个方面总结并且评估存在模型的主要应用程序领域。最后，这份报纸以后论述FLM挑战和开发的方向，包括：(1)森林管理目的实际策略上的更突出的服务；(2)多模块和多插件到的建设处于各种各样的条件满足风景研究需求；(3)高分辨率的采纳空间时间的数据；(4)多版本的结构的建设模块；(5)改进模型申请的空间适用性。

简介：中国云物理学研究的评论在期间20032006在这篇论文被做。云田间试验和观察，云物理学和降水上的研究包括它在冰雹抑制和人造降雨改进的理论应用程序，云物理学和闪电，和云和气候变化被包括。首先对从天气修正活动，云物理学的问题和天气修正的需求到期与许多田间试验和模型研究在中国被探讨了。当云物理学和天气修正仍然是时，一个重要研究领域，在喷雾器之间的相互作用，云和放射处理变化研究，它是当前的气候的关键问题，在过去的四年在中国成为了一个新研究方向。

简介：由风和水的复杂侵蚀，是也叫的aeolian-fluvialinteractions，在干旱、半干旱的区域是一个重要侵蚀过程和风景。在风和水过程，空间环境转变和时间的环境变化之间的连接的Theeffectiveness是决定风神河的相互作用的geomorphologicsignificance的三个主要驱动力。作为互连的建筑群和内部联合系统，由风和水的复杂侵蚀有空间时间的变化特征。由风和水的复杂侵蚀的过程能被划分成palaeoenvironmental过程和当代的过程。在干燥陆地的早工作经常被归因于倡导an'aeolianist'或一个“河成论者”的二所学校之一观点，因此是直到1930年代关于由风和水的复杂侵蚀的研究被进行了。有二个障碍，由风和水限制复杂侵蚀的研究。第一，怎么在不同时间、空间的规模转变仍然是未解决的；并且第二，研究方法论仍然是不成熟的。以后，侵蚀，在风中的复域土壤侵蚀度和水蚀愿望的机制和控制是关于由风和水的复杂侵蚀的研究的焦点。

简介：GeographicalInformationSystem(GIS)iswidelyusedinmanyfields.Withtherapiddevelopmentofcomputernetwork,GISuserscaremoreaboutdatasharinginnetworks.Intraditionalrelationaldatabase,dataconsistencywascontrolledbyconsistencycontrolmechanismwhenadataobjectislockedinasharingmode,othertransactionscanonlyreadit,butcannotupdateit.Thisisappropriateintraditionalrelationaldatabasesthatstoreattributedataandmainlydealwithshorttransactions.Inspatialdatabases,becauseofvastamountofdataandcomplextopologicalrelations,longtransactionaremetfrequently.Ifthetraditionalconsistencycontrolmethodhasbeenusedyet,thesystem'sconcurrencywillbebadlyinfluenced.SotherecomemanynewrequirementsfortheconsistencycontrolinthefieldofGIS.Therearemanyaspectsofdataconsistencyproblemsinspatial　databases,suchastheinconsistencybetweenattributeandgeometrydata;theinconsistencyoftopologicalrelationsaftergeometryobjectshasbeenmodified.Inthispaper,othertwocasesofdataconsistencyarediscussedinMulti_userGeographicalInformationSystem.　　InGIS,therearemanyformsofdata,suchasgeometrydata,attribute,imagedata,andDEMdata.Inthispaper,weonlydiscussspatialgeometrydata.

简介：ＯＢＳＥＲＶＡＴＩＯＮＦＯＲＴＯＧＡ－ＣＯＡＲＥＡＮＤＲＥＬＥＶＡＮＴＲＥＳＥＡＲＣＨＬｉＪｉ（李骥），ＬｕＥｒ（陆尔）ａｎｄＤｉｎｇＹｉｈｕｉ（丁一汇）ＣｅｎｔｅｒｆｏｒＣｌｉｍａｔｉｃＲｅｓｅａｒｃｈＩ．ＲＥＰＯＲＴＯＮＴＯＧＡＯＢＳＥＲＶＡＴＩ...

简介：ＲＥＳＥＡＲＣＨＡＮＤＰＲＡＣＴＩＣＥＯＦＳＥＤＩＭＥＮＴＭＡＮＡＧＥＭＥＮＴＩＮＴＨＥＧＥＺＨＯＵＢＡＰＲＯＪＥＣＴＷＡＮＧＱｉａｏａｎｄＰＡＮＱｉｎｇｘｉｎ１ＴｈｅＥｎｇｌｉｓｈｔｅｘｔｉｓｔｒａｎｓｌａｔｅｄｂｙＤｒ．ＤＩＮＧ，Ｌｉａｎｚｈｅｎ...

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简介：Inthispaper,ahistoricalreviewoftheseismicnetworkofVietnamandtheabilityofthenetworktomonitorearthquakesispresented.TheseismicactivityofVietnamasacountryofhighseismictiyinthelastcenturyandsincethebeginningofthenewcenturyisdescribed.ThecurrentstateofseismologicalresearchinVietnamandcooperationwithinstitutionsoutsideofVietnamisoutlined.

简介：这篇论文使用地震危险分析方法让中国的城市在Daduhe排水区域在地震出现的概率上研究，在串联水坝系统是located.This的地方，研究基于中国(2001)的地震地面运动参数带状配列地图的潜在的地震来源计划，并且当地震出现model.Earthquake大小服从截断的指数的distribution.The，使用泊松分发潜在的se的空间分发功能

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简介：ThedatarecordedduringthesitesurveyintheZhangzhouareainFujianProvincebetweenOctober23,2007andDecember3,2007wasanalyzed.Themainmethodsadoptedforthenoiselevelofthisareaarethenoiserootmeansquare(RMS),noisepowerspectrumdensityandnoisecoherencyfunction.Theresultsindicatethatthenoiselevelsofthesurveysitesarehigherinthe1s-10speriods,whichisthemainfrequencybandofpreliminarymicroseism,andalso,twomainnoisesourceswerefoundin1.5Hzandaround5Hz.Accordingtoarithmetic,thedirectionandfrequencybandofthenoisesourcewereanalyzedandacademicproofswerepresented.Atlast,wefoundthatthenoisesourcein1.5Hzwasmadebythewaterwavearousedbythewindinthereservoirregionandthenoisesourcearound5Hzwasmadebythepowerstationinthenortheastdirection

简介：BasedonAVISO(archiving,validationandinterpretationofsatellitedatainoceanography)datafrom1993to2010,QuikSCAT(QuickScatterometer)datafrom2000to2008,andArgodatafrom2003to2008,theinterannualvariabilityoftheGreatWhirl(GW)andrelatedmechanismsarestudied.ItshowsthattheoriginandterminationtimesoftheGW,aswellasitslocationandintensity,havesignificantinterannualvariability.TheGWappearedearliest(latest)in2004(2008)andvanishedearliest(latest)in2006(2001),withtheshortest(longest)durationin2008(2001).Itscenterwasmostsouthward(northward)in2007(1995),whiletheminimum(maximum)amplitudeandareaoccurredin2003and2002(1997and2007),respectively.TheGWwasweakeranddisappearedearlierwithitslocationtendingtobeinthesouthwestin2003,whilein2005itwasstronger,vanishedlaterandtendedtobeinnortheast.TheabnormalyearswereoftennotthesameamongdifferentcharactersoftheGW,andwerenotallcoincidentwithENSO(ElNi?o-SouthernOscillation)orIOD(IndianOceanDipole)events,indicatingtheverycomplexnatureofGWvariations.MechanisminvestigationsshowsthattheinterannualvariabilityofintraseasonalwindstresscurlinGWregionresultsinthatoftheGW.ThegenerationoftheGWiscoincidentwiththearrivalofRossbywavesattheSomalicoastinspring;theintensityoftheGWisalsoinfluencedbyRossbywaves.TheterminationoftheGWcorrespondswelltothesecondoneofthetoptwopeaksinthebaroclinicenergyconversionrateinGWregion,andtheintensityandthepositionoftheGWarealsocloselyrelatedtothetoptwobaroclinicenergyconversionrates.

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简介：Itisurgentandnecessarytointegrateamarinegeographicalinformationsystem(MGIS)withmarineremotesensingdetectionmodules.Onthebasisofthecurrenttechnologyandfeaturesofapplications,anopenthree-layerintegrationframeworkisdesigned.Atthedatalayer,atwo-levelthree-baseintegrationmechanismbasedontheplug-intechnologyisapplied;Atthefunctionlayer,anintegrationmodebasedonAPI,DLL,EXEandCOMisdiscussed;andattheapplicationlayer,asharingmechanismbasedontheclients/serviceisadopted.Asanexample,theremotesensingintegratedapplicationinformationsystemofChina'scoastalzoneandoffshore(MaXplorer1.0)withmultiecologyremotesensingfusionandassimilationmodule,surgedetectionmoduleaswellaseightotherthematicapplicationmodulesisintegrated,andthekeytechnologyofintegrationisdiscussedatdifferentlayersandindifferentmodules.Theresultshowsthatitispossibletorealizetheconformityoftechnologyandresourcesandtoprovidetheincorporatetechnologyplatformformarineinformationoperationalfunctioningafterapplyingtheintegrationframework

简介：Basedonthemodeltestofpoddedpropulsorinstraightforwardmotion,thepaperpresentstheresultsoftheeffectsofgeometricparametersonthepropulsivecharacteristicsofpoddedpropulsorsinviscousflow.Threemaingeometricalparameters,i.e.poddiameter,strutdistancefromthepropellerplane,andthemaximumthicknessofstrutarestudiedwithsystematicallyvariedgeometrywhiletheparametersofpropellerbladesarefixed.TheRANSapproachisadoptedtostudythesteadyperformanceusingtheFluentsoftwarepackage.Whiletheinteractionsofthepropellerbladeswiththepodandstrutaretime-dependentbynature,themixingplanemodelisemployedtopredictthesteadyperformance.Inconsiderationofthecomplexity,theresearchdoesnotdealwiththeeffectsofthecombinationofsuchthreemainparameters.

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简介：Monitoringofsubsurfacefluid(undergroundfluid)isanimportantpartofeffortsforearthquakepredictioninChina.Thenationwidenetwork,whichmonitorsgroundwaterlevel,watertemperature,andradonandmercuryingroundwater,hasbeenconstructedinthelastdecades.Largeamountsofabnormalfluidchangesbeforeandaftermajorearthquakeshavebeenrecorded,providingpreciousdataforresearchinearthquakesciences.Manystudieshavebeendoneinearthquakefluidhydrogeologyinordertoprobethenatureoftheearthquake.Muchprogressinearthquakefluidhydrogeologyhasbeenmadeinthelastdecades.Thepaperprovidesareviewoftheadvancesinresearchonearthquakefluidhydrogeologyoverthelast40yearsinChina.Itdealswiththefollowingfiveaspects:(1)anintroductiontothedevelopmenthistoryofmonitoringnetworksconstruction;(2)casesofdifferentsubsurfacefluidchangesrecordedbeforesomemajorearthquakeswhichoccurredinthelastdecades;(3)characteristicsofsubsurfacefluidchangesfollowingmajorearthquakes;(4)mechanismofsubsurfacefluidchangesbeforeandfollowingearthquakes;(5)applicationofearthquakefluidsinthehydrogeologyfield.