简介：Numericalsimulationforfluidflowoveranattachedrigidbodywithadeformableringbubbleisanalyzedbasedonthevelocitypotentialtheorytogetherwiththeboundaryelementmethod(BEM).Theanalysisisfocusedontheaxisymmetriccase.Thebubblesurfaceistreatedasawelldefinedair-liquidinterfaceandistrackedbyamixedEulerian-Lagrangianmethod;Thepointsofintersectionbetweenthebubbleandbodyaretreated,speciallyinthenumericalprocedure.Theauxiliaryfunctionmethodisadoptedtocalculatethepressureonthebodysurfaceandintheflowfield.Theconvergencestudyisundertakentoassessthedevelopednumericalmethodandthecomputationcode.Somecasestudiesareundertakeninwhichtheinteractionsbetweenthebubble/bodyandtheincomingflowfieldaresimulated.Theeffectsofvariousphysicalparametersontheinteractionsareinvestigated.

简介：CTscanningdoesnotgenerallyprovideaccuratecountsofconcealedpackagesinbody-packers.AbdominalCThasbeenshowntobeaccuratefordeterminingthepresenceorabsenceofconcealeddrugpackets,butitsaccuracyforcountingthenumberofconcealeddrugpackagesinconfirmedbody-packershadnotbeendetermined.

简介：Anewmethodofcalculatingtheradaicrosssection(RCS)forwing-bodyblendedtargetsispresentedandverified.Themethodutilizesacomputerprogramformodelingtargets’geometryintermsofsmallpieces.Thecalculationisbasedonphysicalopticsapproximation.Examplesaregiventoshowthevalidityofthemethod.

简介：Theefiectsofmicroscopicthree-bodyforcesontheequatioilofstate(EOS)andthesingleparticlepropertiesofisospinasymmetricnuclearmatterhavebeenstudiedwithinBrueckner-Hartree-Fockframework~[1]Themicroscopicthree-bodyforcemodelconstructedfrommesonexchangecurrentapproachinRef.~[2]hasbeenextendedtoisospinasymmetricnuclearmatter

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简介：Inthispaperweinvestigatedhowtherunningspeedwouldaffectthedynamicsofbodypitching,andwhetherbodyinertiaisimportantforanimals.Passivetrottingofspring-massmodelandpassiveboundingofspring-beammodelwerestudiedatdifferentspeedsfordifferentsetsofbodyparametersrespectively.Furthermore,differentbodyinertiaswereusedinbounding.Wefoundthatrunningspeedexertseffectonlegperformancebymeansofcentrifugalforce.Thecentrifugalforcecanbeunderstoodasanenhancementtothenaturalfrequencyofthespring-masssystem.Thedisadvantageofbodypitchingmaybeoffsetbythegreatincreaseincentrifugalforceathighspeed.Theresultsalsorevealthatbodymassdistributionmightnotbethemainreasonforthedifferenceinmaximalrunningspeedsofdifferentanimals.

简介：TheintrinsicphysicalrelationshipofvorticitybetweenmodesAandBinthethree-dimensionalwaketransitionisinvestigated.Directnumericalsimulationsfortheflowpastasquare-sectioncylinderarecarriedoutatReynoldsnumbersof180and250,associatedwithmodesAandB,respectively.Basedontheanalysisofspacialdistributionsofvorticityinthenearwake,characteristicsoftheverticalvorticityinmodesAandBareidentified.Moreover,therelationshipofthreevorticitycomponentswithspecificsignsissummarizedintotwosignlaws,asintrinsicphysicalrelationshipsbetweentwoinstabilitymodes.Bythetheoryofvortex-inducedvortex,suchtwosignlawsconfirmthattherearetwoandonlytwokindsofvortex-sheddingpatternsinthenearwake,justcorrespondingtomodesAandB.Inbrief,alongthefreestreamdirection,modeAcanbedescribedbytheparallelsheddingverticalvorticeswiththesamesign,whilemodeBisdescribedbytheparallelsheddingstreamwisevorticeswiththesamesign.Finally,itisfoundoutthatthe-typevortexisabasickindofvortexstructureinbothmodesAandB.

简介：<正>AnonlinearhingedextensibleelasticbodyequationwithstrongstructuraldampingandBalakrishnan-Taylordampingoffullexponentisstudiedasageneralmodelforlargespacestructuresofhigherdimensions.Inthispaper,theabsorbingsetsandfiatinertialmanifoldareobtainedforthisnonlinearbodyequation.Thecontrolspilloverproblemassociatedwiththestabilizationofthisequationisresolvedbyconstructingalinearfinitedimensionalfeedbackcontrolbasedontheexistenceofinertialmanifoldsoftheuncontrolledequation.Moreover,theresultsobtainedarerobustwithrespecttotheuncertaintyinstructuralparameters.

简介：ＤｏｕｂｌｅＢｅａｍｓｔｏＭｅａｓｕｒｅＴｈｒｅｅ－ｄｉｍｅｎｓｉｏｎａｌＲｉｇｉｄＢｏｄｙＤｉｓｐｌａｃｅｍｅｎｔｓ①ＺＨＯＵＪｉａｎ，ＣＨＥＮＷｅｎｙｉ，ＺＨＡＯＨｏｎｇＴＩＡＮＦｅｎｇ，ＴＡＮＹｕｓｈａｎ（ＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｆｏ...

简介：这份报纸集中于调查相互作用效果为打漩并且在稳定的火焰过程直率身体。粒子图象velocimetry被用来在三个炉子测量速度领域。首先，在直率身体的稳定的炉子有或没有的火焰的比较打漩被介绍。实验的结果介绍直率身体的稳定的火焰的变化什么时候打漩，被增加进炉子：最大的反向的流动速度和最大的平均数平均光线的速度减少；最大的光线的根平均数摆平波动(rms)速度增加；嘴轴的方面上的轴的速度山峰的价值更低，并且在山峰和中心线之间的距离更大；最大的光线的rms速度的地点从中央再通行地区(CRZ)搬到环形的气流的插头。然后，火焰在的比较打漩炉子有或没有直率身体被提供。实验的结果显示出打漩的变化火焰什么时候直率身体被增加进打漩炉子：在CRZ的空气旋涡搬到炉子；轴的平均数和rms速度减少的山峰价值；在中心线和轴的平均数和rms速度山峰增加之间的距离；吝啬的光线的速度减少的山峰，和rmsraidial速度增加的山峰。从这个实验的数据能也为燃烧的发展和确认作为基准被建立数字模拟。

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简介：Strongasymmetricalvorticesappearontheleewardofslenderbodyathighanglesofattack,whichhasveryunfavorableeffectonthestabilityandcontroloftheaircraft.Amethodisdevelopedtocontrolthesideforceofslenderbodyathighanglesofattack,andisverifiedinwindtunnel.Athin-filmtriangularself-excitedoscillationflagisfixedatthetipoftheslenderbodymodelwhosesemi-apexangleis10°.Sideforceisapproximatelylinearlyproportionaltoroll-settingangleofself-excitedoscillationflagathighanglesofattack,andtheslopoffittingstraightlineobtainedbytheleastsquaremethodis-0.158.Thelinearrelationshipbetweensideforceandroll-settingangleprovidesconveniencefordevelopingsideforcecontrollawofslenderbodyathighanglesofattack.Experimentaldatashowsthatthesideforcecoefficientsvarylinearlywithroll-settingangleswhenaspecificplasticself-excitedoscillationflagisusedasthecontrolflag.Therangeofsideforcecoefficientandroll-settingangleare,respectively,-3.2to3.0and-20°to20°.Thedeviceissimple,effective,andisofgreatpotentialinengineeringapplication.

简介：如果误诊，距骨的侧面的过程破裂是有一个潜力的稀罕损害引起重要病态。这些破裂的适当管理仍然是争论的，仅仅一些报告在这个题目上是可得到的。我们在在损害的时候被误诊的距骨的侧面的过程上与忽视的骨折介绍了37岁的男性的一个案例。长期的脚关节疼痛地在错误诊断以后介绍给7个月的病人。我们的案例在它是在湾穴tarsi作为松开的身体介绍了的距骨的侧面的过程上的忽视的骨折的一个稀罕案例的意义是唯一的。然而，有松开的身体的切除的一个手术与2years’一起介绍了令人满意的结果后续。到我们的知识，它应该是在英语文学报导的第一个案例。通过这份案例报告，当评估损伤到脚关节的侧面的方面时，我们为如此的稀罕多骨的损害强调怀疑的高索引的重要性并且讨论这些破裂的管理的原则。

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简介：在这份报纸，我们在场深水里的一个点波浪吸收器的全面数字模拟。分析在频率和时间领域被执行。变换器与在举方向的自由的一度是一个二身体的浮点吸收器(FPA)。它的二部分被一个线性mass-spring-damper系统连接。在这研究使用的商业ANSYS-AQWA软件表现很好在考虑确认。速度潜力被假定不可压缩、无旋的流动获得。因此，我们在精力变换和设备效率上调查了波浪特征的效果，包括波浪高度和波浪时期，以及设备直径，草稿，几何学，和抑制系数。验证模型，我们从类似的实验把我们的数字结果与那些作比较。当考虑特定的条件时，我们的学习结果能清楚地帮助最大化变换器效率。

简介：ThefollowingquantitycanbeusedtodescribenuclearstoppinginHIC.Thetransverse-parallelratioofmomentumRgivenbyR=(2/π)(∑_i~A|P⊥(i)|)/(∑_i~A|P_‖(i)|).HerethetotalmassAisthesumoftheprojectilemassA_pandthetargetmassValuesofthetransverseandparallelcomponentsofthemomentumofthei-thnucleonareP⊥(i)=P_x(i)~2+P_y(i~2~(1/2and‖P_(i)=P_z(i),respectively.Tostudytherolesofthemomentumdependentinteractiononthenuclearstoppingduetothecouplingbetweentheisosp...

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简介：BaseduponStrohformalismwederiveanovelandconvenientschemefordeterminingtheelasticfieldsofatwo-dimensionalanisotropicbodywithaparabolicboundarysubjecttotwokindsofboundaryconditions,whicharefreesurfaceandrigidsurface,respectively.ThecorrespondingGreen’sfunctionsarefoundbyusingtheconformalmappingmethod.Whentheparaboliccurvede-generatesintoahalf-infinitecrackorrigidinclusion,thesingularstressfieldsnearthetipofdefectsareobtained.Inparticular,thoseGreen’sfunctionsforaconcentratedmomentM0appliedatapointontheparaboliccurvearealsostudied.Itiseasilyfoundthatarbitraryparabolicboundaryvalueprob-lemscanbesolvedbyusingtheseGreen’sfunctionsandassociateintegrals.

简介：元代“滋阴派”创始人朱丹溪说：“温者，养也；温存以养，使气自充，气完则形完矣，故言温不言补。”意思是温暖是对自己最好的呵护，温暖自己会使气血充足，气血充足就能使容颜美丽、身体健康，使女人充满最原始、最旺盛的生命力。