简介：Inthispapertheexistenceanduniquenessofthesolutionofimplicithybridmethods(IHMs)forsolvingtheinitialvalueproblems(IVPs)ofstiffordinarydifferentialequations(ODEs)isconsidered.Weprovidethecoefficientconditionanditsjudgingcriterionaswellastherighthandconditiontoensuretheexistingsolutionuniquely.

简介：自从环境能力并且象陆地实际上联系了的居民一样可耕全部的平衡，斜坡为各种各样的工程构造正在成为越来越重要的选择。因为斜坡的地质的复杂性，设计和基于斜坡的设计的决策仍然不是实际的完全依靠理论分析和数字计算，但是主要在专家的经验上。因此，它有重要实际意义把一些成功的经验变成数学方程。在在云南设计构造盒子的丰富的典型斜坡之上基于，西南的中国，为分析斜坡稳定性的3个方法在这篇论文被开发了。首先，为分析斜坡稳定性的通信类似的数学方程通过案例研究被建立了。然后，当7个主要影响因素被采用时，人工的神经网络和multivariate回归分析也被建立了。

简介：Thestudyofstructure,thermodynamicstate,equationofstate(EOS)andtransportpropertiesofwarmdensematter(WDM)hasbecomeoneofthekeyaspectsoflaboratoryastrophysics.Thisfieldhasdemonstrateditsimportancenotonlyconcerningtheinternalstructureofplanets,butalsootherastrophysicalbodiessuchasbrowndwarfs,crustsofoldstarsorwhitedwarfstars.Therehasbeenarapidincreaseininterestandactivityinthisfieldoverthelasttwodecadesowingtomanytechnologicaladvancesincludingnotonlythecommissioningofhighenergyopticallasersystems,zpinchesandX-rayfreeelectronlasers,butalsoshort-pulselaserfacilitiescapableofgenerationofnovelparticleandX-raysources.ManynewdiagnosticmethodshavebeendevelopedrecentlytostudyWDMinitsfullcomplexity.Evenultrafastnonequilibriumdynamicshasbeenaccessedforthefirsttimethankstosubpicosecondlaserpulsesachievedatnewfacilities.RecentyearssawanumberofmajordiscoverieswithdirectimplicationstoastrophysicssuchastheformationofdiamondatpressuresrelevanttointeriorsoffrozengiantplanetslikeNeptune,metallichydrogenunderconditionssuchasthosefoundinsideJupiter’sdynamoorformationoflonsdaleitecrystalsunderextremepressuresduringasteroidimpactsoncelestialbodies.Thispaperprovidesabroadreviewofthemostrecentexperimentalworkcarriedoutinthisfieldwithaspecialfocusonthemethodsused.AlltypicalschemesusedtoproduceWDMarediscussedindetail.MostofthediagnostictechniquesrecentlyestablishedtoprobeWDMarealsodescribed.Thispaperalsoprovidesanoverviewofthemostprominentexamplesofthesemethodsusedinexperiments.Eventhoughthemainemphasisofthepublicationisexperimentalworkfocusedonlaboratoryastrophysicsprimarilyatlaserfacilities,abriefoutlineofothermethodssuchasdynamiccompressionwithz-pinchesandstaticcompressionusingdiamondanvilcells(DAC)isalsoincluded.Somerelevanttheoretic

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简介：Plantationpoplarisoneofthemostimportantresourcesforwoodindustry,itsutilizationfieldisvast.ThewettabilityofPopulustomentosawithdifferentdryingmethodswasjudgedbymeasurementofcontactangleusingdistilledwaterinthispaper.Theresultsshowedthatthespecimensfromconventionaldryinghavethebiggestcontactangle,andtheairdriedhavethesmallestcontactangle,airdriedlumbershaveabetterwettabilitythanthekilndried.Thechangesofcontactangleinaperiodoftim...

简介：Avarietyofmatrixrationalinterpolationproblemsincludethepartialrealizationproblemformatrixpowerseriesandtheminimalrationalinterpolationproblemforgeneralmatrixfunctions.Severalproblemsincircuittheoryanddigitalfilterdesigncanalsobere-ducedtothesolutionofmatrixrationalinterpolationproblems[1—4].Bymeansofthereachabilityandtheobservabilityindicesofdefinedpairsofmatrices,Antoulas,Ball,KangandWillemssolvedtheminimalmatrixrationalinterpolationproblemin[1].Onthe

简介：Withthedevelopmentofgenomesequencingformanyorganisms,moreandmorerawsequencesneedtobeannotated.Genepredictionbycomputationalmethodsforfindingthelocationofproteincodingregionsisoneoftheessentialissuesinbioinformatics.Twoclassesofmethodsaregenerallyadopted:similaritybasedsearchesandabinitioprediction.Here,wereviewthedevelopmentofgenepredictionmethods,summarizethemeasuresforevaluatingpredictorquality,highlightopenproblemsinthisarea,anddiscussfutureresearchdirections.

简介：TheGalerkinandleast-squaresmethodsaretwoclassesofthemostpopularKrylovsubspacemethOdsforsolvinglargelinearsystemsofequations.Unfortunately,boththemethodsmaysufferfromseriousbreakdownsofthesametype:InabreakdownsituationtheGalerkinmethodisunabletocalculateanapproximatesolution,whiletheleast-squaresmethod,althoughdoesnotreallybreakdown,isunsucessfulinreducingthenormofitsresidual.Inthispaperwefrstestablishaunifiedtheoremwhichgivesarelationshipbetweenbreakdownsinthetwometh-ods.Wefurtherillustratetheoreticallyandexperimentallythatifthecoefficientmatrixofalienarsystemisofhighdefectivenesswiththeassociatedeigenvalueslessthan1,thentherestart-edGalerkinandleast-squaresmethodswillbeingreatrisksofcompletebreakdowns.Itappearsthatourfindingsmayhelptounderstandphenomenaobservedpracticallyandtoderivetreat-mentsforbreakdownsofthistype.

简介：Weconsidertheclassicalpolicyiterationmethodofdynamicprogramming(DP),whereapproximationsandsimulationareusedtodealwiththecurseofdimensionality.Wesurveyanumberofissues:convergenceandrateofconvergenceofapproximatepolicyevaluationmethods,singularityandsusceptibilitytosimulationnoiseofpolicyevaluation,explorationissues,constrainedandenhancedpolicyiteration,policyoscillationandchattering,andoptimisticanddistributedpolicyiteration.Ourdiscussionofpolicyeva...

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简介：在布朗最新的浪漫惊险小说里．她笔下的女主角莎拉-林齐回到了其位于加利福尼亚的故乡．参加她兄弟丹尼的葬礼。那个镇子的经济严重依赖于当地的铸铁厂．而作为厂长的父亲与她已有10年没有见面了。她立刻就怀疑丹尼的死有蹊跷，其父和另一个兄弟克里斯与此事有关。更糟的是．她父亲的律师贝克正在对她进行跟踪。当她开始倾心于这位英俊的贝克时．

简介：这款U型拉环插头可方便用户单指将其拔出，而且后部开放式结构为多插头彼此首尾相连提供了可能。此外，其设计结构简单，造价也定会相对低廉许多。

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简介：在声乐训练中，需要诸多的手段和方法，其中“u”母音的练习不仅对声乐初学者的声音训练具有不可替代的作用，而且对具有相当程度的歌唱者的音质改善，也起着非常重要的作用。

简介：玛蒂娜·科尔土生土长于艾塞克斯郡。她创作了．十部以伦敦黑社会为背景的畅销小说。在她最新的一部小说里．玛蒂娜讲述了尼克。利里（慈爱的父亲、忠实的朋友以及精明的生意人）在一位蒙面不速之客闯入他家时的遭遇。玛蒂娜·科尔以其独特的风格．对我们的社会进行了写照．通过直言不讳加同情的方式．

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简介：随着USB接口的普及和闪存芯片价格的急剧下滑,U盘以其读写速度快、存储容量大、保存时间长、可重复擦写、耐高低温、不怕潮、不怕摔、体积小、便于携带等诸多特点,成为计算机用户对文件进行移动存储的首选设备.U盘作为一种输入输出设备,也难以避免病毒的入侵和潜伏.文中主要介绍如何利用便携式的U盘构建U盘系统以及U盘病毒的防治方法.

简介：Thestudyonthedecaypropertiesofnewisotopeslocatedfarfromthebetastabilitylineiscurrentthefocusofnuclearphysics.ForisotopesintheregionZ>82andN<126,-emissionprevailsasradioactivedecaymodeand-spectroscopyisthemostimportanttooltoobtaininformationonthenuclearstructure.IntheheavynucleiregionwithN=124and126isotones,anintruderstate(h9=2.f7=2)8+basedontheattractiveinteractionoff7=2protonsandf5=2neutronshasbeensignificantlyobserved,whichincreasesthebindingenergyofthisconfigurationwithincreasingprotonnumber.

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