简介：Duringeccentriccontractions,muscularforceproductioncapacityisenhancedcomparedtoisometriccontractions.Althoughthisiswellacceptedintermsofmusclemechanics,maximalvoluntaryeccentriccontractionsareassociatedwithneuralinhibitionthatpreventsincreasedforceproductionofinvivohumanmuscles.However,becauseitwasshownthatmaximalvoluntaryeccentricforcescanexceedmaximumisometricforcesbyafactorof1.2-1.4,thisreviewfocusesonthequestionofwhethertheabsenteccentricforceenhancement,asobservedinmanystudies,canunambiguouslybeattributedtoaninherentneuralinhibition.First,wedemonstratethatparticipantfamiliarization,preload,andfasciclebehaviorarecrucialfactorsinfluencingmaximalvoluntaryeccentricforceproduction.Second,weshowthatmusclemechanicssuchasmusclelength,lengtheningvelocity,andstretchamplitudeinteractwhenitcomestomaximalvoluntaryeccentricforceproduction.Finally,wediscussthedivergingfindingsonneuralinhibitionduringmaximalvoluntaryeccentriccontractions.Becausetherewasnoinhibitionofthemajormotorpathwaysinthepresenceofenhancedmaximalvoluntaryeccentricforces,furtherresearchisneededtotesttheconceptofneuralinhibitionandtounderstandwhymaximalvoluntaryforceproductionisreducedcomparedtotheforcecapacityofisolatedmusclepreparations.

简介：UsingFX-4000strainunit,theprolierationinhumanlungadenocarcinomaA549cellsthatunderwentmechanicalstrainofdifferentwaveform、frequencyanddurationwerestudied.Imageanalysisrevealedthatcellularproliferationrate(PR)reducedsignificantlyaftercellsweresubjectedtosquarewavewith0～20%elongationatfrequency30,40,50and60cycles/minfor2h.ThePRhadnodistinctdifferenceatheartwave,trianglewaveandsinewavegroupcomparedwithcontrol.ItisconcludedthatsquarewaveandhigherfrequencyplayanimportantroleininhibitingA549cellsproliferation.

简介：稳定的laminar流动的问题的一个近似答案一粘滞在一张拉长的表上的不可压缩的电子上进行的液体被介绍。途径基于拉长流动问题的变量然后使用最少的广场方法最小化一个微分方程的剩余的想法。流动特征上的磁场的效果与Hartman数字的不同价值通过数字计算被表明。

简介：动态或在biomolecules的玻璃转变对他们的工作重要。另外必要是在蛋白质土著人状态和展开的过程之间的转变。更好理解这些转变，我们使用Fourier变换越过一个宽温度范围学习含水的溶解酵素的震动的弯曲并且拉长的模式的红外线的光谱学。我们发现这些转变被在蛋白质和水和水之间联合的强壮的氢契约触发。更精确，我们证明在两个盒子中，水性质统治系统的进化。我们发现二典型温度是相关的：在限制的水的supercooled政体，fragile-to-strong动态转变发生在TL,并且在稳定的液体阶段，T*315瑡牥洠汯'虥N獥椠?桴?楦獲?票牤瑡潩?桳汥？

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简介：Analternateyetgeneralformoftheclassicaleffectivethermalconductivitymodel(Maxwellmodel)fortwo-phaseporousmaterialsispresented,servinganexplicitthermo-physicalbasis.Itisdemonstratedthatthereducedeffectivethermalconductivityoftheporousmediaduetonon-conductingporeinclusionsiscausedbythemechanismofthermalstretching,whichisacombinationofreducedeffectiveheatflowareaandelongatedheattransferdistance(thermaltortuosity).

简介：Astudyispresentedformagnetohydrodynamics(MHD)flowandheattransfercharacteristicsofaviscousincompressibleelectricallyconductingmicropolarfluidinachannelwithstretchingwalls.ThemicropolarmodelintroducedbyEringenisusedtodescribetheworkingfluid.Thetransformedselfsimilarordinarydiferentialequationstogetherwiththeassociatedboundaryconditionsaresolvednumericallybyanalgorithmbasedonquasi-linearizationandmultileveldiscretization.Theefectsofsomephysicalparametersontheflowandheattransferarediscussedandpresentedthroughtablesandgraphs.Thepresentinvestigationsmaybebeneficialintheflowandthermalcontrolofpolymericprocessing.

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简介：Inthispaper,westudytheunsteadycoupledheatandmasstransferoftwo-dimensionalMHDfluidoveramovingoscillatorystretchingsurfacewithSoretandDufourefects.Viscousdissipationefectsareadoptedintheenergyequation.Auniformmagneticfieldisappliedverticallytotheflowdirection.Thegoverningequationsarereducedtonon-linearcoupledpartialdiferentialequationsandsolvedbymeansofhomotopyanalysismethod(HAM).Theefectsofsomephysicalparameterssuchasmagneticparameter,Dufournumber,Soretnumber,thePrandtlnumberandtheratiooftheoscillationfrequencyofthesheettoitsstretchingrateontheflowandheattransfercharacteristicsareillustratedandanalyzed.

简介：一综合(dimethylsiloxane)(PDMS)poly，有二的微芯片削尖为方便样品注射，跑的缓冲区更新和清洗的隧道拉长建议被介绍了。没有交换供应和注射十字隧道的复杂电源，样品直接通过拉长的入口尖端被介绍进分离隧道。运用缓冲区更新或隧道清洗的操作被vacuuming简化尖端的结束并且把另外的尖端放进答案小瓶。因此，没有软平版印刷术和血浆结合设备，这个制造方法罐头容易经济地被用于很分析的实验室。新奇PDMS微芯片的吸引人的表演被为蛋白质的分离使用导致激光的荧光察觉表明了。在0.04mol/L磷酸盐缓冲区的0.04%Brij35的增加(pH7.0)能在multienzyme药片减少蛋白质的粘附并且更容易做分离。electroosmotic流动(文件结束)在动态修改microchannel在311的范围展出pH独立。

简介：Thesteadytwo-dimensionalmagnetohydrodynamicstagnationflowtowardsanonlinearstretchingsurfaceisstudied.Theno-slipconditiononthesolidboundaryisreplacedwithapartialslipcondition.Ascalinggrouptransformationisusedtogettheinvariants.Usingtheinvariants,athird-orderordinarydifferentialequationcorrespondingtothemomentumisobtained.Ananalyticalsolutionisobtainedinaseriesformusingahomotopyanalysismethod.Reliabilityandefficiencyofseriessolutionsareshownbythegoodagreementwithnumericalresultspresentedintheliterature.Theeffectsoftheslipparameter,themagneticfieldparameter,thevelocityratioparameter,thesuctionvelocityparameter,andthepowerlawexponentontheflowareinvestigated.Theresultsshowthatthevelocityandshearstressprofilesaregreatlyinfluencedbytheseparameters.

简介：现在的学习在拉长的柱体上面对magnetohydrodynamics和热产生/吸收系数在威廉森液体的停滞点流动上揭示homogeneous/hetereogeneous反应的效果。进一步，可变热电导率和热层化的效果也被考虑。管理部分微分方程在类似转变的帮助下被变换成平常的微分方程。系统联合了非线性的平常的微分方程然后被射击解决技术。MATLAB射击代码被比较在限制情况与以前出版的工作验证。当现在的结果与MATLAB内建的功能bvp4c相比时，结果进一步被加强。突出的参数的效果为速度，温度和集中侧面图形地被商讨。为不同参数的皮磨擦系数和Nusselt数字在桌子的帮助下被调查。

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简介：Thispaperstudiesthethermal-diffusionanddiffusionthermo-effectsinthehydro-magneticunsteadyflowbyamixedconvectionboundarylayerpastanimpermeableverticalstretchingsheetinaporousmediuminthepresenceofchemicalreaction.Thevelocityofthestretchingsurface,thesurfacetemperature,andtheconcentrationareassumedtovarylinearlywiththedistancealongthesurface.Thegoverningpartialdifferentialequationsaretransformedintoself-similarunsteadyequationsusingsimilaritytransformationsandsolvednumericallybytheRunge-Kuttafourthorderschemeinassociationwiththeshootingmethodforthewholetransientdomainfromtheinitialstatetothefinalsteadystateflow.Numericalresultsforthevelocity,thetemperature,theconcentration,theskinfriction,andtheNusseltandSherwoodnumbersareshowngraphicallyforvariousflowparameters.Theresultsrevealthatthereisasmoothtransitionofflowfromunsteadystatetothefinalsteadystate.Aspecialcaseofourresultsisingoodagreementwithanearlierpublishedwork.

简介：电影动量和在加速上的薄有限幂定律液体的热运输特征上的内部加热来源的效果不稳定的水平拉长的接口被学习。不同于这块地里的很古典的工作，为改变热电导率的液体电影和概括Fouriers法律的一般表面温度分布被考虑。适当类似转变被用来与一组二点的平常的微分方程(颂诗)把强烈非线性的管理部分微分方程(PDE)变换成一个边界价值问题。在液体电影厚度和摇摆参数之间的通讯在MATLAB用BVP4C节目被导出。自我类似颂诗的数字答案用与一个Runge-Kutta重复程序和牛顿计划相结合的射击技术被获得。液体上的深奥物理参数的效果水平速度和温度分发被介绍并且讨论。

简介：Thestructureofpolyimidefrom1,4-bis(3’,4’-dicarboxyphenoxy)benzeneand4,4’-oxydianilinefilmspecimensbeforeandafterhotstretchinghasbeeninvestigatedbyWAXD,DSCandFTIR.AsevidencedbyboththeWAXDandDSCresults,itcouldbebelievedthatstraininducedcrystallizationdidtakeplaceafterhotstretching.Meanwhile,shiftingpositionandsplittingofsomebandpeaksexistedontheFTIRspectrogramswereexplainedintermsoftheclosepackingofchainsandthechangesofinter-molecularcharge-transferinteractionbetweenimidegroupsandaromaticgroupsuponcrystallization.