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简介：有不同边界条件的一个beam-mass-spring系统的免费颤动被分析经分解并且数字地。在分析分析，系统被划分成三个分系统，春天和点团的效果被认为在任何二个附近的分系统之间的边界条件同样内部。管理分系统和内部边界条件的运动的部分微分方程然后用变量的分离的方法被解决。在数字分析，当一个单个系统和春天和点质量的效果用迪拉克三角洲功能被介绍，整个系统被考虑。Galerkin方法然后被采用到discretize运动的方程和平常的微分方程的产生集合经由特征值分析被解决。分析、数字的结果被显示在很好的同意。

简介：Seeddormancycontributesresistancetopre-harvestsprouting.Effectsonrespectivequantitativetraitloci(QTLs)fordormancyshouldbeassessedbyusingfreshseedsbeforegerminabilityalteredthroughstorage.WeinvestigatedQTLsrelatedtoseeddormancyusingbackcrossinbredlinesderivedfromacrossbetweenNipponbareandKasalath.FourputativeQTLsforseeddormancyweredetectedimmediatelyafterharvestusingcompositeintervalmapping.TheseputativeQTLsweremappednearC1488onchromosome3(qSD-3.1),R2171onchromosome6(qSD-6.1),R1245onchromosome7(qSD-7.1)andC488onchromosome10(qSD-10.1).KasalathallelespromoteddormancyforqSD-3.1,qSD-6.1andqSD-7.1,andtherespectiveproportionsofphenotypicvariationexplainedbyeachQTLwere12.9%,9.3%and8.1%.Weevaluatedtheseeddormancyharvestedatdifferentripeningstagesduringseeddevelopmentusingchromosomesegmentsubstitutionlines(CSSLs)toconfirmgeneeffects.ThegerminationratesofCSSL27andCSSL28substitutedwiththeregionincludingqSD-6.1weresignificantlylowerthanthoseofNipponbareandotherCSSLsatthelateripeningstage.Therefore,qSD-6.1isconsideredthemosteffectivenovelQTLforpre-harvestsproutingresistanceamongtheQTLsdetectedinthisstudy.

简介：Numericalcomputationsareperformedforthenaturalconvectionincircularenclosureswithinnerpolygonalcylinders.Thepolygonsurfaceandtheouterenvelopeareatconstantbutdifferenttemperatures.Abody-flttedcoordinatesystemisused.Thecoordinatesystemisgeneratedviasimplealgebraicequations.Thetransformedgoverningequationsarediscretizedonacontrolvolumebasiswithpower-lawfilitedifferencescheme.TheSIMPLE-likealgorithmisusedtodealwiththelinkagebetweenpressureandvelocities.Thenumericalresultsarecomparedwiththeexperimentaldataavailableintheliterature,andtheagreementbetweenthenumericalandexperimentalresultsareverygood.

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