简介：用领域分解方法检验传送对流散开问题。连续、分离的传送对流散开方程的表示；有点趋于增加的Schwarz算法；最佳的顺序错误估计结果。

简介：水泥臼的区域在早舞台在硫酸盐答案沉浸的在表面的42-集中分布被与化学分析相结合的分层的采样方法因此测量，并且散开系数在进内部区域的臼的表面区域的42-阴离子因此借助于即时飞机是计算的散开理论。当散开深度在臼的表面区域增加了时，试验性的结果证明SO42-集中逐渐地减少了。散开系数(D)与集中和有点环境的硫酸盐答案是相关的，它在开始与沉浸时间减少了，然后在时间的一个时期以后慢慢地升起了。起始的散开系数的计算(D0)和恶化的开始的时间(t)由硫酸盐引起了攻击进一步基于散开系数的数据被尝试，并且D0和t都也与硫酸盐和硫酸盐的不同类型的集中是相关的，这被发现。

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简介：Characteristicperiodisanimportantparameteroftheseismicdesignresponsespectrum.Thereisimportanttheoreticalsignificanceandengineeringapplicationvaluetothestudyofthecharacteristicperiodofseismicdesignresponsespectrumofultrahighvoltage(UHV)electricalequipment.Inthispaper,1448horizontalearthquakerecordswithintheworldscopeincludingtheUnitedStatesandJapanforSiteClassⅢwereanalyzed.Resultsshowthatbothmagnitudeandepicentraldistancehavegreatinfluenceonthecharacteristicperiod.About80%ofcharacteristicperiodsofstrongearthquakerecordsareabout0.9s.Statisticalanalysiswasconductedontheseismichazardassessmentresultsof312projectsofChinainrecentyears,anditisfoundthatabout70%ofcharacteristicperiodsareabout0.9s.Combinedwiththerelatedcodecomparisonandanalysis,itissuggestedthatthecharacteristicperiodoftheseismicdesignresponsespectrumofUHVelectricalequipmentshouldselect0.9sinordertoeffectivelyguaranteetheseismicsafetyofUHVelectricalequipment.

简介：Inthispaperweshallgivethecharacteristicdifferencemethodsfortwophasedisplacemeatprobleminnaturallyfracturedreservoirs.Weshallprovetheexistence,uniquenessoftheapproximatesolutionandaprioridiscreteL2-errorestimates.

简介：Thepropagationfeatures,stabilitiesanddynamicalcharacteristicstructuresofcoupledKelvininnermodesandsecondorderRossbyinnermodesarestudiedusingasimpletropicalcoupledair-seamodelinthispaper.Itisshownthatthereismechanismofselectingscaleandfrequencyinthetropicalair-seasystem.Theeffectsofair-seacouplingaremainlyonthelarge-scalemodesandnonuniform.TheseeffectsmakethefrequencyofKelvinmodesdecreaseandevenexcitetheeastwardpropagatingRossbyinnermodes.TheseeffectsmaketheunstabledevelopmentofKelvinmodesandresultinthedecayofRossbymodes.Theeffectsofatmosphericdampareoppositetothoseofair-seacoup-ling.Theoceanicdamponlymakethewaveamplitudesdecay.Simutaneously,thispapershowsthedynamicalcharacter-isticstructuresofair-seacoupledsystemandthephaserelationsbetweentheatmosphericandtheoceanicwavecompo-nent.

简介：Theoreticalconsiderationwasproposedforthefrequencyresponseofaseriespiezoelectricsensortothepropertiesofliquidandverifiedexperimentally.Thiskindofsensorhassensitiveandselectivefrequencyresponsetothepermittivityandspecificconductivityofsolutionwithexcellentstability,andwasappliedtothedeterminationofmicro-contentofwaterinorganicsolvents.Thedetectionlimitis0.01g/Lindioxane.

简介：YbAl3(BO3)4crystalofgoodopticalqualitywasgrownbythefluxmethod.ThestructureofYbAl3(BO3)4crystalwasdeterminedbysingle-crystalX-raydiffraction.TheexperimentshowsthatYbAl3(BO3)4belongstothedoubleborateswithatrigonalstructure.ThespacegroupisR32anditsunitcellconstantsweremeasuredtobea=0.92965nm,c=0.72129nm,V=0.53673nm3,Z=3.Thetransmittancespectraweremeasured.Thecut-offofYbAl3(BO3)4crystalis216nm,andtherearetwoabsorptionpeakslocatedat940and975nmfrom190nmto2600nm.ThethermalpropertiesofYbAl3(BO3)4crystalwerestudiedforthefirsttime.Theaveragethermalexpansioncoefficientsweredeterminedtobe2×10-6/℃,9.5×10-6/℃alonga-andc-direction.ThespecificheatofYbAl3(BO3)4crystalwasmeasuredtobe0.6695J·(g·℃)-1atroomtemperature.AllresultsindicatethattheYbAl3(BO3)4crystalisanexcellentstoichioimetriclasermaterial.

简介：Inthispaper,weimplementalternatingdirectionstrategyandconstructasymmetricFVEschemefornonlinearconvection-diffusionproblems.ComparingtogeneralFVEmethods,ourmethodhastwoadvantages.First,thecoefficientmatricesofthediscreteschemeswillbesymmetricevenfornonlinearproblems.Second,sincethesolutionofthealgebraicequationsateachtimestepcanbeinvertedintothesolutionofseveralone-dimensionalproblems,theamountofcomputationworkissmaller.WeprovetheoptimalH1-normerrorestimatesoforderO(△t2+h)andpresentsomenumericalexamplesattheendofthepaper.

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简介：在印度海洋和降水上的海面温度(SST)的电视连接分发特征被使用文件结束和CCA的方法在在中国的雨季期间学习。结果显示SST地的变化将在中国在雨季期间影响雨带的变化，并且极大地在西北和西南中国影响降水，Yangzi和黄河下游的盆。在印度海洋上的SSTA的强壮的信号现象被揭示那在中国显示出干旱和洪水的异常分发。它证明降水可以在在中国的雨季期间是由在印度海洋上分析SST分发特征的预报。

简介：一个新方法被开发因为在在同一直线上的振动点上稳定运动用限制的通报的形式主义绕三个身体问题转。关于在同一直线上的振动点轨道的Linearization与周期的系数产出一个不稳定的线性变化参数的系统。给变化方程，一条创新控制法律为振动点轨道基于典型代表赋值被介绍维护。选择理查森鈥檚的数字模拟为一条名字的轨道被进行的一条光圈轨道的第三顺序近似，和结果表明这条控制法律的有效性。关键词通报限制了三个身体问题-变化方程-振动点轨道维护-典型代表赋值工程被中国(10702003)的国家自然科学基础支持。

简介：Thedevelopmentofoffshorewindfarmsindeepwaterfavorsfloatingwindturbinedesigns,butfloatinghorizontalaxiswindturbinesarefacingthechallengeofhighcostofenergy(CoE).ThedevelopmentofinnovativedesignstoreducetheCoEisthusdesirable,suchasfloatingverticalaxiswindturbines(VAWTs).Thisstudydemonstratesthecharacteristicsofaerodynamicloadsandloadeffectsofatwo-bladedfloatingVAWTsupportedbyasemi-submersibleplatform.Fullycoupledsimulationsareperformedusingthetime-domainaero-hydro-servo-elasticcodeSIMO-RIFLEX-AC.Itisfoundthatthrust,lateralforce,andaerodynamictorquevaryconsiderablyandperiodicallywiththerotorazimuthangle.However,thevariationinthegeneratortorquecanbealleviatedtosomeextentbythecontrolstrategyapplied.Moreover,thevariationsofplatformmotionsandtensionsinthemooringlinesarestronglyinfluencedbyturbulentwinds,whereasthoseoftower-basebendingmomentsarenot.Thetowerbasebendingmomentsexhibitnotabletwo-per-revolution(2P)responsecharacteristics.

简介：AccordingtotheshipobservationdataovertheSouthIndianOceanduring1950--1995,taking1°×1°and5°×5°grid,thecharacteristicsandvariationruleofwindareanalyzed.Throughanalyzingthechartofisoplethsofthemonthlyelements,theconclusionthattheseasonalvariationofthewindfieldovertheSouthIndianOceanislessremarkablethanthatintheoceansoftheNorthernHemisphereisgot.Theseasonalvariationofthewindfieldisalsoobviousinthisregion,buttheseasonaldifferenceislittle.Thewindinwinterisstrongerthaninsummer,correspondingly,theaveragewindspeedishigher,andthefrequenciesofgaleofforces≥6and8arealsohigher.Thenorthof10°Sisamonsoonarea;Southeastwindprevailsallovertheyearintherestofthetradewindarea;Westerlywinddominatesinthesouthof40°S.Thispaperprovidesspecificdataofwindfieldandvariationforshipoceantransportation,ocean-goingvisitsandscientificexperiment.

简介：从高斯扁平软帽Chern定理，NUT-Kerr-Newman黑洞的Euler特征被计算是从0～2的一些分离数字。我们发现兜售Bekenstein熵是在由在熵和Euler特征之间的关系考虑的拓扑学的最大的熵。NUT-Kerr-Newman黑洞与集体、尖动量的变化从像花托的拓扑的结构演变到球形的结构，电并且坚果费用。在这个过程，Euler特征和熵不连续地被改变，它给NUT-Kerr-Newman黑洞的一阶的阶段转变的拓扑的方面。拓扑的阶段转变的相应的潜伏的热也被获得。从星演变的黑洞的估计的潜伏的热就躺在鲸鱼群妈光线爆炸的精力的范围。

简介：IntheHL-1Mplasmaexperiments,tworefuelingways,thepelletinjectionandthegaspuffing,areusuallyused.Inrecentyears,anewrefuelingmethod,thesupersonicmoleculebeam(SMB)injection,hasbeendeveloped.SMBinjectionisanattempttoenhancethepenetrationdepthandthefuellingefficiencyofgas,aswellastoreducesurfaceabsorptionoftheinjectedparticlesandtheimpuritycontentintheplasma.InSMBinjectionexperiments,thegasisinjectedintotheplasmathroughaLavalnozzleathighgaspressure.Inthiscase,thepeakdensityandimprovingconfinementhavebeenachievedasinthecaseofapelletinjection.

简介：InnestednonhydrostaticmesoscalemodelMM5,thecharacteristicquantitiesofatmosphericturbulence,i.e.,thestandarddeviationsoftheturbulentfluctuatedspeedsforthreedirectionsinPBLarecomputedbyMellor-Yamada’slevel2.5closurescheme.Themagnitudesandtheverticalprofilesofthesequantitiescomputedfromthemodelarecloselyconnectedwithtemperatureandwindspeedprofilesaswellasthetypeofthegroundwithasignificantdiurnalvariation,andareinagreementwithknownmagnitudesandregularitiesindifferentstratificationconditions.Hencethemethodinthispaperisreasonableandconvincible.Theirhorizontaldistributiondependsonthehorizontaldistributionofthestratification.Themethodofpredictedcharacteristicquantitiesofturbulencefrommesoscalemodelinthispapercanbeusedintheproblemofatmosphericdiffusionandatmosphericenvironment.

简介：Thesoftwareforoil-gastransportandaccumulationistodescribethehistoryofoil-gastransportandaccumulationinbasinevolution.Itisofgreatvalueinrationalevaluationofprospectingandexploitingoil-gasresources.Themathematicalmodelcanbediscribedasacoupledsystemofnonlinearpartialdifferentialequationswithmovingboundaryvalueproblem.Foragenericcaseofthethree-demensionalboundedregion,bithisthesis,theeffectsofgravitation、buoyancyandcapillarypressureareconsidered,weputforwardakindofcharacteristicfinitedifferenceschemesandmakeusethickandthingridstoformacompleteset,andofcalculusofvaviations,thechangeofvariable,thetheoryofpriorestimatesandtechniques,Optimalorderestimatesinl~2normarederivedfortheerrorinapproximateassumption,Thuswehavecompletelysolvedthewell-knowntheoreticalproblemproposedbyJ.Douglas,Jr.

简介：变量的直接分离被用来为矩形的Mindlin盘子的免费颤动获得靠近形式的解决方案。三个不同典型方程被使用三个不同方法导出。偏转能借助于四条典型的根被表示，二旋转应该被所有六条典型的根表示，这被发现，它是Mindlin板理论的个性。并且靠近形式的答案，它满足三中的二个管理方程和所有边界调节并且为有中等厚度的矩形的盘子是精确的，为简单地支持并且夹钳的边的任何联合被导出。如果其它个相反的边简单地被支持，免费的边能也被处理。现在的结果同意很好，结果为不同方面比率和相对厚度由另外的方法以前出版了。

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