简介：Apreviouslydevelopedmodelofa2-dimensionalairflowwithconstanthorizontalshearisusedtoestimeatetheaccuracyofthegeostrophicmomentumapproximationbycomparisonofexactsolutionswhenexistwithapproximateones.

简介：Baiyuneboite-(Ce)isanewfluor-carbonatemineral.Basedonthefinedataonthestructureofthemineral,thefactorgroupandnormalcoordinateanalysesforitsinfraredspectrumhavebeencarriedout.ThefactorgroupanalysesindicatethatthesitegroupandfactorgroupsplittingsoftheinternalvibrationbandsofCO3^2-ionsdonotoccurandthatthedoublebandsofnormalmodesresultfromtwonon-equalsetsofCO3^2-ionsinthecrystalstructure,Thenormalcoordinateanalysesgivethestretchingforceconstants.bendforceconstantsandcalculatedfrequenciesofCO3^2-ions.Thecalculationsofpotentialenergydistributionallowustoassignv3andv4tothestretchingvibrationandthebendvibrationofCO3^2-ions.respectively.

简介：Insteady,solid-liquidtwo-phaseturbulentflows,thereexisttwotypicalpatternsoftheverticaldistributionofparticleconcentration.ThepatternIshowsamaximumconcentrationatanelevationabovethebed.ThepatternIIshowsanincreaseoftheparticleconcentrationdownwardoverthewholevertical,withthemaximumatthebed.MostofthetheoriesonparticleconcentrationdistributionhavebeendonewiththepatternII,anditislackofasuccessfultheorycovetingbothofthetwopatterns.Thispaperreviewstheparticledistributiontheories,includingthediffusiontheory,themixturetheory,theenergytheory,thesimilaritytheory,thestochastictheoryandthekinetictheory.Thekinetictheoryisalsoappliedtodescribetheverticaldistributionofparticleconcentrationinbothdiluteanddenseflows.

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简介：ＴＹＰＨＯＯＮ：ＳＣＩＥＮＴＩＦＩＣ／ＯＰＥＲＡＴＩＯＮＡＬＥＸＰＥＲＩＭＥＮＴＳＡＮＤＤＹＮＡＭＩＣＴＨＥＯＲＥＴＩＣＡＬＳＴＵＤＹ￥ＣｈｅｎＬｉａｎｓｈｏｕ（陈联寿）ａｎｄＸｕＸｉａｎｇｄｅ（除祥德）ＴＹＰＨＯＯＮ：ＳＣＩＥＮＴＩＦＩＣ／ＯＰＥＲ...

简介：这份报纸学习为在一个泼出的沙滩上宣传的表面水波浪打破波浪的连续进化。一个Lagrangianasymptotic答案被导出。根据结合的解决方案，打破标准和水粒子运动，波浪变丑和连续波浪的方程碎的波浪处理因为进步的水飘动在一个泼出的底部上宣传能被导出。一系列实验也被进行与理论答案作比较。结果证明现在的答案罐头相当描述打破现象的跳入或掉下的波浪。

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简介：在Lorenz系统的一个类似物动态的模型(ADM)的理论基础和申请被学习。ADM能有效地联合状态能被认为是一个预言目的当前的起始的值的小骚乱在历史的类似物引用上在附加了的统计、动态的方法。主要分析证明在在模型参数添加骚乱的条件下面，ADM的模型错误是比纯动态模型(PDM)的那些小得多的。在Lorenz系统的ADM上的可预测性的特征被进行案例研究和全球实验在阶段空间分析。结果证明ADM罐头相当有效地减少预言错误并且与PDM相对照处于大多数状况延长预言的有效时间，但是当模型错误是更加小的时，后者将比前者优异。克服如此的一个问题，更新的multi-reference-state能被使用介绍多类似物和更改类似物的信息并且能在ADM展出令人激动的性能。

简介：Inthispaper,responsesofanewdual-inductionresistivitylogging-while-drilling（LWD）toolin3Dinhomogeneousformationmodelsaresimulatedbythevectorfiniteelementmethod（VFEM）,theinfluencesoftheborehole,invadedzone,surroundingstrata,andtooleccentricityareanalyzed,andcalibrationloopparametersandcalibrationcoefficientsoftheLWDtoolarediscussed.TheresultsshowthatthetoolhasagreaterdepthofinvestigationthanthatoftheexistingelectromagneticpropagationLWDtoolsandismoresensitivetoazimuthalconductivity.Bothdeepandmediuminductionresponseshavelinearrelationshipswiththeformationconductivity,consideringoptimalcalibrationloopparametersandcalibrationcoefficients.Duetothedifferentdepthsofinvestigationandresolution,deepinductionandmediuminductionareaffecteddifferentlybytheformationmodelparameters,therebyhavingdifferentcorrectionfactors.Thesimulationresultscanprovidetheoreticalreferencesfortheresearchandinterpretationofthedual-inductionresistivityLWDtools.

简介：分数维的地理地图数据处理的一些理论问题被讨论，发展，比较并且估计关于分数维的尺寸介绍的一些新方法在这篇论文被建议并且。

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简介：Thesurfacestreamingpotentialanomalies(SSPA)foraburiedsymmetricalpressuresourceinhomogeneousandanisotropiclayeredhalfspacearecalculatedseparatelyinthispaper.TheresultsshowthatthemaximumofSSPAcalculatedusingthetwomodelsarereasonableandareaboutseveralhundredmV.TherangeinwhichSSPAcanbedetectedontheearth￠ssurfacevarieswiththeintensityofmediumanisotropy.AnisotropiccrackisintroducedtocalculatethemagnitudeofSSPA,sotheoreticallythecontradictionbetweenobservationdataandtheoreticalresultsisinterpretedmorereasonably.

简介：在通过β飞机barotropic的reinvestigated与加热和驱散的考虑建模的热带空气的多重equilibria和他们的稳定性。Wehave首先导出相应于多重equilibria或稳定流的模型方程的答案，然后直接由theLiapunov的使用为稳定流的稳定性建立标准方法。这些标准什么时候被用于equilibria的答案，获得了；马厩在热带区域与伪静止的循环的不同模式有关仔细流动，它是，被发现。在他们中的二个之间的这些稳定的流动和移动的配置作为季节变化提供相当合理的解释给象发作的大祸机制和亚洲夏季风的break-activecycle那样的热带发行量特征的许多基本问题。因而，发作或Asiansummer季风的突然的转变能被归因于热带发行量的多重平衡性质源于移流的非线性，它在其它之中提供另一解释。

简介：Inthispaper,usinganonlinearlow-orderbarotropicsystemwithorographyandmomentumforcingaswellasdissipation,wehavetheoreticallycalculatedthetwokindsofcurvesfortheseasonalnorthwardmovementofsubtropicalhighs.Ithasbeenshownthatthetheoreticalresultsresemblebasicallywiththeanalysedresultsofwavespectrumdata.

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简介：BasedonthedevelopingtendencyofpresentChina'sbasicGIS,thispaperdiscussesthedesigningideaforscalesof1∶10000,1∶50000,1∶250000and1∶1000000pyramidlikemultilayerandmultiresolutionofthebasicGIS.AtechnicallinefortheconstructionofbasicGISofthewholecountryandvariousprovincesforsustainabledevelopmentisputforward.AndsomeimportanttheoreticalGISissuestouchedbythetechnicalprocessarediscussed.

简介：Theexperimentalresultsof3-Dfractureundercompressionareintroducedinbriefandthetheoryofstresscriterionof3-Dfractureisstudied.Methodstoimitateinitialfracturesaredeveloped.Itispointedthatthereareimportantdefectsintheextremevalue(EV)methodeverproposedbyPalaniswamyandKnauss.ThemajordefectliesinthatonlytwoEulerangles(2EA)areconsidered,butanotheroneisneglected.IfthevariationofallthethreeEulerangles(3EA)areconsidered,onecangetbetterresultwhichisconsistentwiththeobservationoffaultingthatextendsoncurvedsurfacesbutnotonplanes.Themethodofevaluatingmaximalnormalstressdirectionvector(NSDV)isproposedandfurtherprovedtobeequivalenttothe3EAmethod.ItisprovedthattheNSDVmethodcanbefurtheroptimizedtothemethodofcompositionofthefirstprincipaldifferentialplane(CFPDP).TheresultsfromCFPDPmethodcanfitthecurvedsurfacesofinitialgrowthobservedintheexperimentsof3-Dfracture.TheCFPDPmethodcanalsobeusedtointerpretthe3-Dfracturesoftheslippingsectionbetweentheasperitiesintheburiedfaultplanethatismodeledasellipsecrack.Theresultsof3-Dfracturecanbeappliedtointerpretingtherelatedproblemsoffaultingincludingthemechanismofalotofshatterrockswithdifferentdimensions,thecauseofearthquakesoccurredattheedgeofplateunderlowshearstress,andthemechanismofanisotropycausedbytheextensivedilatancyanisotropy(EDA)cracks.

简介：Faultparametersareimportantinearthquakehazardanalysis.Inthispaper,theoreticalrelationshipsbetweenmomentmagnitudeandfaultparametersincludingsubsurfacerupturelength,downdiprupturewidth,rupturearea,andaverageslipoverthefaultsurfacearededucedbasedonseismologicaltheory.Thesetheoreticalrelationshipsarefurthersimplifiedbyapplyingsimilarityconditionsandanuniqueformisestablished.Then,combiningthcsimplifiedtheoreticalrelationshipsbetweenmomentmagnitudeandfaultparameterswithseismicsourcedataselectedinthisstudy,apracticalsemi-empiricalrelationshipisestablished.Theseismicsourcedataselectedisalsotousedtoderiveempiricalrelationshipsbetweenmomentmagnitudeandfaultparametersbytheordinaryleastsquareregressionmethod.Comparisonsbetweensemi-empiricalrelationshipsandempiricalrelationshipsshowthattheformerdepictdistributiontrendsofdatabetterthanthelatter.Itisalsoobservedthatdowndiprupturewidthsofstrikeslipfaultsaresaturatedwhenmomentmagnitudeismorethan7.0,butdowndiprupturewidthsofdipslipfaultsarenotsaturatedinthemomentmagnituderangesofthisstudy.

简介：Thecorrelationofthescaledenergy,e?=Es/M0,versusearthquakemagnitude,Ms,isstudiedbasedontwomodels:(1)Model1basedontheuseofthetimefunctionoftheaveragedisplacements,withax-2sourcespectrum,acrossafaultplane;and(2)Model2basedontheuseofthetimefunctionoftheaveragedisplacements,withax-3sourcespectrum,acrossafaultplane.Forthesecondmodel,therearetwocases:(a)Ass*T,wheresistherisetimeandTtherupturetime,lg(e?)*-Ms;and(b)AssT,lg(e?)*-(1/2)Ms.Thesecondmodelleadstoanegativevalueofe?.ThismeansthatModel2cannotworkforstudyingthepresentproblem.TheresultsobtainedfromModel1suggestthatthesourcemodelisafactor,yetnotauniqueone,incontrollingthecorrelationofe?versusMs.

简介：Cathodeactivityplaysanimportantroleintheimprovementofthemicrobialfuelcellsonoceanfloor(BMFCs).AcomparisonstudybetweenRayon-based(CF-R)andPAN-basedcarbonfiber(CF-P)cathodesisconductedinthepaper.Thetwocarbonfiberswereheattreatedtoimprovecellperformance(CF-R-H&CF-P-H),andwereusedtobuildanewBMFCsstructurewithafoamycarbonanode.Themaximumpowerdensitywas112.42mWm-forCF-R-H,followedby66.6mWm-2forCF-R,49.7mWm-2forCF-P-Hand21.6mWm-2forCF-Prespectively.ThehigherspecificareaanddeepgroovemakeCF-RhaveabetterpoweroutputthanwithCF-P.Meanwhile,heattreatmentofcarbonfibercanimprovecellpower,nearlytwo-foldhigherthanheattreatmentofplainfiber.Thisimprovementmaybeduetothequinonesgroupformationtoacceleratethereductionofoxygenandelectrontransferonthefibersurfaceinthethreephaseboundaryafterheattreatment.ComparedtoPAN-basedcarbonfiber,Rayon-basedcarbonfiberwouldbepreferentiallyselectedascathodeinnovelBMFCsdesignduetoitshighsurfacearea,lowcostandhigherpower.Thecomparisonresearchissignificantforcathodematerialselectionandcelldesign.