简介：Arithmeticcodingisarelativelynewloss-lessdatacompressiontechniquethathasattractedmuchattentioninrecentyears.Weshowtheiterationofbit-levelarithmeticcodingcanbespecifiedbyacontinuousfunction.Theanalysisexpressionandsomepropertiesofthisfunctionarediscussed.Anapplicationofthefunctionisprovidedforexploringthesecurityofarithmeticcodeswhentheyareusedfordataencryption.

简介：Thispaperaimsatdevelopingastochastic-elasticmodelofasoftelasticbodyadheringonawavysurfaceviaapatchofmolecularbonds.Theelasticdeformationofthesystemismodeledbyusingcontinuumcontactmechanics,whilethestochasticbehaviorofadhesivebondsismodeledbyusingBell'stypeofexponentialbondassociation/dissociationrates.Itisfoundthatforsufficientlysmalladhesionpatchsizeorstressconcentrationindex,theadhesionstrengthisinsensitivetothewavelengthbutdecreaseswiththeamplitudeofsurfaceundulation,andthatforlargeadhesionpatchsizeorstressconcentrationindex,thereexistoptimalvaluesofthesurfacewavelengthandamplitudeformaximumadhesionstrength.

简介：这份报纸学习多相的thermoelasticcomposites的有效性质。把免费精力和吉布斯基于Helmholtz多相的composites的单个阶段，有效有弹性的张肌，热扩大的张肌，和特定的热的免费精力借助于体积一般水准被导出这些阶段免费精力。特别强调以经常紧张、经常压力的状况，修改Eshelby的micromechanics理论在被开发被放在有效的特定的热的新分析表情的推导上，在包括之间的相互作用被考虑。作为一个解说性的例子，为三阶段的thermoelastic的有效的特定的热的分析表示合成被介绍。

简介：Theobjectiveofthisstudyistoinvestigatethehemodynamicsinpatient-specificthoracicaorticaneurysmanddiscussthereasonforformationofaorticplaque.A3-Dimensionalpulsatilebloodflowinthoracicaortawithafusiformaneurysmand3mainbranchedvesselswasstudiednumericallywiththeaverageReynoldsnumberof1399andtheWomersleynumberof19.2.Basedontheclinical2-DimensionalCTslicedata,thepatient-specificgeometrymodelwasconstructedusingmedicalimageprocesssoftware.Un...

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简介：ThespecificsignofReynoldsstressintheboundarylayeronaflatplateatzeroincidenceisnewlyinterpretedinpresentpaperbasedonthetheoryofvortex-inducedvortex.Itavoidssomeproblemsappearedinatraditionalexplanation,onthebasisofrelationshipbetweenmeanandfluctuatingflowsduetothetransportofmomentum.Throughtheanalysisoflocalflowfieldintheimmediateneighborhoodofwall,thecharacteristicsofReynoldsstressareidentifiedthroughintroducingturbulence-inducedsmall-scalestreamwiseeddiesabovetheflatplate.ThepositiveReynoldsstressistheoreticallyverified.AndsuchnewinterpretationillustratesthatthegenerationofReynoldsstress,aswellasfluctuatingvelocity,isintrinsicallyindependentofthemeanflow.Butitsspecificsignwouldbedeterminedbythemeanflowduetotheinertialforces.Otherfeatures,suchastheintensityrelationshipamongthreecomponentsoffluctuatingvelocity,arealsopresented.

简介：Asetofnewgasdynamicfunctionswithvaryingspecificheatarederiveoforthefirsttime.Anoriginalanalyticalsolutionofnormalshockwavesisowrkedouttherewith.Thissolutionisthereafterfurtherimprovedbynotinvolvingtotaltemperature,Illustrativeexamplesofcomparisonaregiven,includingalsosomeapproximatesolutionstoshowtheordersoftheirerrors.

简介：应用相关的多处理机system-on-chip(MPSoC)体系结构正在成为一个吸引人的解决方案处理逐渐地复杂的嵌入的应用程序，它要求性能良好和灵活可编程性。作为为MPSoC开发的一个有效方法，我们在场从高级Simulink开始的渐渐的精炼流动当模特儿到synthesizable和可执行的硬件和软件说明。建议方法论由五个不同抽象层次组成：Simulink联合了算法和体系结构模型(CAAM)，虚拟建筑学(VA)，精确建筑学(TA)，虚拟原型(VP)和地可编程的门穿的transactional(FPGA)模拟。建议渐渐的精炼流动的Motion-JPEG和H.264表演的试验性的结果能从一个原来的Simulink模型产生各种各样的MPSoC体系结构，允许处理器，通讯和任务设计空格探索。

简介：Thispapertreatstheflowinstabilitiesinamixedflowpumpwithavaneddiffuser.Testpumphasapositiveslopeofahead-flowperformancecurveat65%flowrateofBEP(BestEfficiencyPoint)becauseofarotatingstall.DynamicParticleImageVelocimetry(PIV)andpressurefluctuationmeasurementsareusedforinvestigatingthepropagationmechanismofarotatingstall.Itwasfoundthatunstableperformancewascausedbyperiodicallargescaleabruptbackflowgeneratedfromthevaneddiffusertotheoutletofimpeller.Further,therelationbetweenthestaticpressureattheinletofdiffuservaneandtheinternalflowconditionwasclarified.Fromtheseexperimentalresults,inordertoimprovethepositiveslopeofahead-flowperformancecurve,tosuppressthegrowthofstrongvortextowardtheinletofdiffuservanewasprovedtobeakeypoint.

简介：有在粒子沉重的狂暴的隧道流动的热转移上的不同的特定的热的惯性的粒子的效果用直接数字的模拟(DNS)和追踪方法的Lagrangian粒子被学习。模拟使用一个双向联合模型考虑在粒子和骚乱之间的动量和热相互作用。温度回答的学习表演与不同的特定的热粒子和没有粒子的流动显示粒子沉重的流动之间的差别，显示特定的热是的粒子在粒子沉重的流动影响热转移进程的一个重要因素。粒子沉重的流动的热转移能力逐渐地随粒子的增加增加特定的热，这被发现。这由于对热转移的粒子增加的积极贡献。另外，粒子沉重的流动的Nusselt数字与没有粒子的流动的相比。有大特定的热的粒子加强狂暴的流动的热转移，这被发现，当那些与小特定的热削弱狂暴的流动的热转移时。

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简介：为单个核苷酸多型性(SNP)的当前的方法分析消费aretime并且复杂。我们为快速的SNP分析在一步舞的开发瞄准了即时fluorescencemutant-allele-specific扩大(MASA)方法。方法是二种技术的婚姻:为目标脱氧核糖核酸和双stranded的MASA教材DNA选择的荧光染料，格林·西布尔I.Genotypes根据thewild类型的不同阀值周期被分开，变异的primers.K地岬oncogene被用作一个目标验证不同遗传型能清楚地是，这试金区别的试验性的结果显示出的themethod.The的可行性。即时荧光MASA方法将由于它的简洁和低费用为快、可靠的SNP分析有一个庞大的潜力。