简介:InertiaTensorforSymmetricFission¥ZhangXueqian;XuShuwei;ShenCuihua;ZhangJupingandYuanShangguiRecentlyextensiveinvestigatio?..
简介:在靠近范围的摄影测量学,3D信息获得基于图象匹配。代码标记的应用程序帮助改进自动匹配和匹配的精确性的水平。这份报纸调查惯性椭圆算法的应用程序编码标记匹配。我们能与某个边界计算一个目标的惯性椭圆。首先,方法被用于一个单个代码标记;角度并且可伸缩是有效的。然后,纸介绍多编码由惯性椭圆匹配方法的标记。旋转和同形异义图象的可伸缩的变化能被惯性椭圆算法计算。这些参数能被用于在任意的态度匹配靠近范围的摄影测量学的代码标记。
简介:Asignpatternmatrixisamatrixwhoseentriesarefromtheset{+,-,0}.Thesymmetricsignpatternmatricesthatrequireuniqueinertiahaverecentlybeencharacterized.Thepurposeofthispaperistomoregenerallyinvestigatetheinertiasetsofsymmetricsignpatternmatrices.Inparticular,nonnegativefri-diagonalsignpatternsandthesquaresignpatternwithall+entriesareexamined.AnalgorithmisgivenforgeneratingnonnegativerealsymmetricToeplitzmatriceswithzerodiagonalofordersn≥3whichhaveexactlytwonegativeeigenvalues.Theinertiasetofthesquarepatternwithall+off-diagonalentriesandzerodiagonalentriesisthenanalyzed.Thetypesofinertiaswhichcanbeintheinertiasetofanysignpatternarealsoobtainedinthepaper.Specifically,certaincompatibilityandconsecutivenesspropertiesareestablished.
简介:Inqualitativeandcombinatorialmatrixtheory,westudypropertiesofamatrixbasedonqualitativeinformation,suchasthesignsofentriesinthematrix.Amatrixwhoseen-triesarefromtheset{+,-,0}iscalledasignpatternmatrix(orsignpattern).Forare-almatrixB,bysgn(B)wemeanthesignpatternmatrixinwhicheachpositive(respec-tively,negative,zero)entryofBisreplacedby+(respectively,-,0).IfAisann×n
简介:Theinertiasofthefluidandtheinnercylinderincoaxialcylinderrheometer(CACR)havegreatinfluenceontheunsteadyflowofnon-Newtonianfluid.EvenfortheNewtonianfluidthereexistthesocalled'stressovershoot'phenomenon.Inthepresentarticlethisphenomenonwasstudiedindetailandamethodcorrectingthemeasuredresultsforanunsteadyflowintherheometerwasproposed.Itisfoundthattheinertiaeffectofthefluidcanbeignoredwhenthegapbetweencylindersissmall.
简介:ThefeedbackstabilizationproblemofanonuniformTimoshenkobeamsystemwithrotorinertiaatthetipofthebeamisstudied.First,asaspecialkindoflinearboundaryforcefeedbackandmomentcontrolisappliedtothebeam'stip,thestrictmathematicaltreatment,asuitablestateHilbertspaceischosen,andthewell-posenessofthecorrespondingclosedloopsystemisprovedbyusingthesemigrouptheoryofboundedlinearoperators.Thentheenergycorrespondingtotheclosedloopsystemisshowntobeexponentiallystable.Finally,inthespecialcaseofuniformbeam,somesufficientandnecessaryconditionsforthecorrespondingclosedloopsystemtobeasymptoticallystablearederived.
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简介:一个数字实验被执行使用天气研究并且预报(WRF)分析惯性严肃的产生和繁殖的模型在在2014年8月17日发生在四川区域的山论的暴风雨期间挥手。为了检验惯性严肃波浪的空间、时间的结构并且识别波浪,打字,三wavenumber频率光谱分析方法(Fourier分析,跨spectral分析,和小浪跨光谱的分析)被使用。在暴风雨期间,惯性严肃波浪出现在10-14km的高度,与80-100min的时期和40-50km的波长。这些波浪在一座山上被产生并且宣传以15-20ms1的平均速度东方。同时,在波浪和积累的降水在那里显示出的重建的惯性严肃之间的比较是在他们之间的一个相互的提升过程。理查森数字和得分者参数被用来证明东方动人的惯性严肃波浪与有利反射镜和批评水平条件在一个有效大气的ducting地区被套住,它是波浪的长寿的主要原因。最后,测试敏感到加热的地面和diabatic的数字实验被进行,并且结果建议地面并且diabatic加热的合作效果贡献了波浪的繁殖和改进。
简介:Inthispaper,theanalysisoftheoccurrenceandthedevelopmentoftyphoonandtropicalcycloneismadewiththeunstabletheoryofwave.Theresultindicatesthattheprimarywaveistheunstableinertia-gravitywaveintheprocessoftheoccurrenceandthedeveJopmantoftyphoonandtropicalcyclone:Theexistenceofthedeepmoistlayerandtheheatingbymoisturecondensationcanimpelandintensifytheunstabilityofthewaveandisfavourableforthereductionofthewaveenergydispersion,therefore,itisgoodfortheformationandthedevelopmentoftyphoonandtropicalcyclone,andalsocanslowdownthewavespeed.Besides,theconditionthatthechangeofthespecificvolumeofthebasicstatewithpressureislessthanthatofadiabaticstatemayalsoleadtothewaveunstability,thusmayhavecertaineffectontheoccurrenceandthedevelopmentoftyphoonandtropicalcyclone.
简介:Thepurposeistoreestablishthecoupledconservationlaws,thelocalconservationequationsandthejumpconditionsofmassandinertiaforpolarcontinuumtheories.Inthisconnectionthenewmaterialderivativesofthedeformationgradient,thelineelement,thesurfaceelementandthevolumeelementwerederivedandthegeneralizedReynoldstransporttheoremwaspresented.Combiningtheseconservationlawsofmassandinertiawiththebalancelawsofmomentum,angularmomentumandenergyderivedinourpreviouspapersofthisseries,arathercompletesystemofcoupledbasiclawsandprinciplesforpolarcontinuumtheoriesisconstitutedonthewhole.Fromthissystemthecouplednonlocalbalanceequationsofmass,inertia,momentum,angularmomentumandenergymaybeobtainedbytheusuallocalization.
简介:Thepapergivesananalysisontechnicalcharacteristicsofrepairtechniquesforfrictionstirweldingdefects.Toovercomethedefects,anewrepairtechnique,inertiafrictionpullplugwelding(IFPPW),wasresearchedanditsequipmentwasdevelopedaswell.ElementarydatumwasachievedbyinvestigatingtheinfluencesoftechnologicalparametersonmechanicalpropertiesandbyanalyzingthestructuralcharacteristicsofrepairjointwithIFPPW.ThestudyshowsthatthestabilityandreliabilityofweldingprocessofIFPPWcanbeguaranteedthroughtheconstantenergyfromtheflywheel.Integratedwiththeadvantagesoffrictionpullplugwelding,theIFPPW,freefrombackanvil,isconsideredasapromisingtechniqueinrepairofterminationkeyholeofbobbintoolfrictionstirweldingandpoint-likedefectsinaluminumalloywelding.
简介:Anin-depthanalysisofpropagationcharacteristicsofelasto-plasticcombinedstresswavesincircularthin-walledtubeshasbeenmade.Inobtainingthesimple-wavesolution,however,mostresearcheshaveignoredtheinfluenceofthecircumferentialstressrelatedtotheradialinertialeffectinthetubes.Inthispapertheincrementalelasto-plasticconstitutiverelationswhichareconvenientfordynamicnumericalanalysisareadopted,andthefinite-differencemethodisusedtostudytheevolutionandpropagationofelasto-plasticcombinedstresswavesinathin-walledtubewiththeradialinertialeffectofthetubeconsidered.Thecalculationresultsarecomparedwiththoseobtainedwhentheradialinertialeffectisnotconsidered.Thecalculationresultsshowthattheradialinertialeffectofatubehasafairlygreatinfluenceonthepropagationofelasto-plasticcombinedstresswaves.