简介：Thepresentpaperderivedtemperaturedistributionsinpowerseriesinasteadylaminarwakebehindaslenderstreamilinedheatedbodyofrevolution.Thetemperaturedistributionofthewakebehindthebodyfromx/d=2to70werefullyexploredusingarecirculatingwaterchannel.ThethermalwakepatternsbehingthebodywerevisualizedwiththeaidofinfraredpicturesandH2bubbles.

简介：Themethodformeasuringthestrainofanobjectusinganopticalfiberandafrequencymodulation(FM)coupledcaritysemiconductorlaserispro-posed.ThismethodusesthecoherentFMheterodyneprincipleoftheMichelsonin-terferometerandcanavoidtheπ/2nonreciprocalphasebiasandphaseshiftingproblemexistingingeneralfiberopticinterferentialsensors,themaximumdetec-tionrangeislimitedbythecoherentlengthofthesemiconductorlaseranditsrela-tivefactor.

简介：

简介：在超声域以内基于包含的microbubbles的一个理论运动方程，microbubbles的次谐波描述被一台计算机最佳地设计并且分析帮助设计系统。microbubbles的次谐波反应上的尺寸，壳弹性和声学的压力的效果理论上被计算为非破坏性的次谐波成像获得最佳的参数。另外，有不同的壳弹性的microbubbles被准备，并且他们的次谐波回答在理论计算和好次谐波改进能被与3m的吝啬的尺寸使用包含的microbubbles获得的声学的测量表演的vitro.The结果被测量，它与material.It也被显示出的壳的合适的比率从表面活化剂答案被准备最好的操作声学的压力是为非破坏性的次谐波ima的200～400kPa

简介：TheeccentricityofthecentreofmassfromthegeometriccentreofasphericalattractingmassindeterminingtheNewtoniangravitationalconstantGistestedbymeansofanelectronicbalance.Theexperimentalresultshowsthattheeccentricityofthesampleisabout0.31μmwithuncertaintyof0.05μm.TwodensitydistributionmodelsarediscussedtoestimatetheuncertaintytoGbytheeccentricitiesoftheattractingmasses.

简介：采用1/4波浪板为阶段延迟和波浪板的眼的轴的同时的测量使用的一个简单方法被表明。测量原则的理论分析详细被介绍。在测量，在调整标准1/4以后，挥动板并且快(慢)要测量的板的轴平行到polarizer的通行证轴，要测量的板被450counterclockwisly旋转。一台步进马达被用来旋转分析器。试验性的数据被一个光电探测器收集然后送到一台计算机。根据产量数据曲线，阶段延迟和要测量的板的眼的轴能同时被获得。为了测试方法，位/2和位的可行性，/8波浪盘子被用作例子表明测量过程。阶段延迟测量精确性比0.5脳好10?2。这个方法能被用来方便地测量任意的阶段延迟。CLC数字O436.3

简介：Thevelocitiesofboundarylayerflowsbetweentwoparalleloscillatingplatesseparatedbysmalldistance,i.e.,insocallednarrowchannel,weretheoreticallyandexperimentallystudied.ThefocuswasonthelaminarcasewheretheReynoldsnumberReAismuchsmallerthanthetransitionvalue.ThetheoreticalanalysisoftheStokeslayerinoscillatingflowoveranarrowchannelwasmadefirst.ThenLaserDopplerVelocimeter(LDV)wasemployedtomeasuretheStokesboundarylayeraboveanoscillatingflatplateandinsidetheoscillatingnarrowchannelatvariousReHnumbers.Atthesametime,thephaseangledifferencealongtheverticaldirectioninbothanalysisandexperimentwereprovided.Thegoodagreementsareshownbetweenthemeasuredresultsandthetheoreticalsolution.

简介：无

简介：基于测量的承认控制(MBAC)算法为放松的即时服务被设计。与传统的连接承认控制机理相对照，MBAC算法的最吸引人的特征是它不要求一个优先的交通模型并且是很困难的让用户在建立流动前找到一个紧密的交通模型。MBAC的另外的优点包括那它能完成到用户的更高的网络利用和提议质量服务。在这篇文章，在MBAC的方程的学习证明他们都能在一样的形式被表示。基于一样的形式，仅当他们满足一些条件，一些MBAC算法能完成一样的性能。

简介：这研究的目的是在一条微隧道为控制使用冲击波。冲击波被在隧道搏动的激光横梁集中的激光产生。使用脉搏激光产生一个冲击波，非静止的流动在在平行盘子之间的小空间被导致。球形、圆柱的吃惊繁殖与schlieren方法被观察。吃惊马赫数字与时间减少并且来临到统一。是在以前的调查报导了，吃惊速度在一个短远处和时间被稀释。在现在的实验，它没处于在球形、圆柱的吃惊实验之间的吃惊速度被发现显著差别。随后，圆柱的冲击波导致的流动用PIV技术被学习。烟tracer在实验被使用，它的速度在100渭s以内被测量。数字模拟被执行调查在气体和烟粒子之间的动量松驰。一个合适的吃惊开始模型在模拟被介绍。试验性的结果证明一个宽加速和减速地区在冲击波后面存在。另外，在试验性的数据的松驰距离在数字模拟比那长得多。关键词微强风的波浪-激光集中-流动可视化-PIVCLC数字O354

简介：ThispapermakesaprobeintotheapplicationoftheKalmanfilteringmethodtothedataprocessingofacross-faultmeasurements.Onthebasisofstatisticalregression,themathematicandstochasticmodelsoffiltrationareestablishedbycombiningtheregressionmethodwithKalmanfiltering.Inthefilteringcomputation,notonlytherandomnessoffaultmovementsbutalsothetime-dependentvariationofenvironmentaleffectshavebeentakenintoconsideration.Byuseoftheadaptivefilteringmethod,anestimationofthedynamicnoisevariancematrixisobtainedthroughiteration.Modelsforonemeasuringline(levelinglineorbaseline),twomeasuringlines(bothlevelinglinesorbothbaselines)andfourmeasuringlines(twolevelinglinesandtwobaselines)arederivedandestablishedsystematically.Bymeansofthesemodels,thedataofacross-faultmeasurementscanbeprocesseddynamicallyinreal-timetoprovidethefilteredvaluesofheightdifferencebetweenbenchmarksorbaselinelengthatdifferenttimein

简介：HippocampalvolumelossisanimportantbiomarkerindistinguishingsubjectswithAlzheimer’sdisease(AD)anditsmeasurementinmagneticresonanceimages(MRI)isinfluencedbypartialvolumeeffects(PVE).Thispaperdescribesapost-processingapproachtoquantifyPVEforcorrectionofthehippocampalvolumebyusingaspatialfuzzyC-means(SFCM)method.Thealgorithmisevaluatedonadatasetof20T1-weightedMRIscanssampledattwodifferentresolutions.Thecorrectedvolumesforleftandrighthippocampus(HC)whichare23%and18%forthelowresolutionand6%and5%forthehighresolutiondatasets,respectivelyarelowerthanhippocampalvolumeresultsfrommanualsegmentation.ResultsshowtheimportanceofapplyingthistechniqueinADdetectionwithlowresolutiondatasets.

简介：

简介：

简介：Objectives:TofindoutthelevelandfunctionsofChlamydiatrachomatisheatshockprotein(C-hsp60)antibody,anti-spermantibody(ASAb),interleukin1(IL-1),interleukin6(IL-6),interleukin8(IL-8),Tumornecrosisfactoralpha(TNF-α)andγ-interferon(IFN-γ/)inpatientswithCT-relatedinfertility.Methods:CT-DNAofcervicalsecretionswasdetectedthroughpolymerasechainreaction(PCR)andmigrationinhibitingfactor(MIF)wasemployedtomeasureIgGtitreofCTMOMPantibody.WesternblotwasusedtodeterminepresenceofC-hsp60antibodyandenzyme-linkedimmunoadsorbentassay(ELISA)measuredASAbofIgGtypeinbloodserumanddeterminethecontentofIL-1,IL-6,IL-8.TNF-u,IFN-7inuterinetubefluid.Results:68patientshadpositiveCT-DNA,amongwhich57(83.8%)hadC-hsp60antibody.Amongthe172patientswithnegativeCT-DNA,64patients(37.2%)alsohadC-hsp60Antibody.Therewasasignificantdifference(P<0.01)betweeninfertilepatientsandcontrolgrouppatientsinthepresenceofASAb.InfertilepatientswithpositiveCT-DNAhadhigherlevelsofIL-1.IL-6.IL-8,TNF-u,IFN-7inuterinetubefluidcomparedtocontrolgrouppatients(P<0.01).Conclusion:Firstly,thosepatientswithnegativeCTtestingfromcervicalsecretionscannotberuledoutforCTinfectionindeeppartsofthebody(suchasoviduct,pelvickidney).DetectionofC-hsp60AntibodymayhelptodiagnosesuchcasesofCT.Secondly,CTinfectionoftheoviductcanraiselevelsofIL-1、IL-6、IL-8、TNF-α、N-γ.ThepathogenesisofinfertilitycausedbyCTinfectioninthereproductivetractmayberelatedtocytokineproductionandinflammatoryresponsesmediatedbyC-hsp60Antibody,IL-1,IL-6,IL-8,TNF-αandIFN-γ.

简介：ThespinHalleffectoflight(SHEL)canbeobservedbythedarkstripresultingfromweakmeasurement.WefindthattheSHELofapartiallycoherentbeam(PCB)hasasimilarphenomenonaswell.However,thedarkstripintheSHELofaPCBcannotbeexplainedbyconsideringthebeamasanassemblanceofcoherentspeckles.Also,thedarkstripinaPCBisnotpurelydark.Byanalyzingtheautocorrelation,weshowthattheSHELofaPCBistheresultofoverlappingcoherentspeckles'SHEL.Wefurtherproveourconclusionbyadjustingconvergenceandincidentangles.Finally,wedevelopaqualitativetheorytoclarifytheSHELofaPCB.

简介：Basedonanalysisofnearinfraredspectralabsorptionofmethane,absorptiontypeopticalfibermethanegassensorwithhighsensitivityusingDFBLDasasourceisdemonstrated.Lightsourcemodulationharmonicmeasurementispresentedinthispaper.Inordertoeliminatethenoise,theratioofthefundamentalandsecond-harmonicsignalsisused.Themathematicalmodelofgasconcentrationharmonicmeasurementisbuiltup.Thedetectionresultofmethaneconcentrationisalsoshown.Experimentshaveprovedasensitivityof28×10-6.

简介：ＭｅａｓｕｒｅｍｅｎｔｏｆＣｏｎｃｅｎｔｒａｔｉｏｎＤｉｓｔｒｉｂｕｔｉｏｎｏｆ　ＥｌｅｃｔｒｏｇｅｎｅｒａｔｅｄＥｔｃｈａｎｔＵｓｉｎｇａｎＥｌｅｃｔｒｏｃｈｅｍｉｃａｌＰｒｏｂｅＴｅｃｈｎｉｑｕｅＭｅａｓｕｒｅｍｅｎｔｏｆＣｏｎｃｅｎｔｒａｔｉｏ...

简介：

简介：Inordertoobtainthesolubilitydataofpropylenein2-propanol-watersolutions,gas-liquidequilibrium(GLE)experimentswerecarriedoutat303.15-333.15K,0.27-0.98MPainastaticequilibriumstill.Theoriginalmassratioof2-propanoltowaterwas9∶1,8∶2,7∶3,1∶0,respectively.TheequilibriumdatawerecorrelatedwithanempiricalmodelandtheregressionofmodelparameterswascompletedbyGauss-Newtonnonlinearleastsquare(NLS).Theaveragerelativedeviation(ARD)betweentheexperimentalandcalculatedvalueis1.5700,andthemaximumrelativedeviation(MRD)is4.8200.Inaddition,asimpleapproachthatcorrelatedthemodelparameterswiththesystemcompositionwasalsoprovided.