简介：Thispapergivesanoverviewonnonlinearporousflowinlowpermeabilityporousmedia,revealsthemicroscopicmechanismsofflows,andclarifiespropertiesofporousflowfluids.Itshowsthat,deviatingfromDarcy’slinearlaw,theporousflowcharacteristicsobeyanonlinearlawinalow-permeabilityporousmedium,andtheviscosityoftheporousflowfluidandthepermeabilityvaluesofwaterandoilarenotconstants.Basedonthesecharacters,anewporousflowmodel,whichcanbetterdescribelowpermeabilityreservoir,isestablished.Thismodelcandescribevariouspatternsofporousflow,asDarcy’slinearlawdoes.Alltheparametersinvolvedinthemodel,havingdefinitephysicalmeanings,canbeobtaineddirectlyfromtheexperiments.

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简介：Porousnanocarbonswithaverageparticlesize20–40nmweredevelopedusingbiowasteoilpalmleavesasaprecursor.Simplepyrolysiswascarriedoutat700°Cundernitrogenatmosphere.Obtainedporousnanocarbonsshowedexcellentporousnaturealongwithsphericalshape.Symmetricsupercapacitorfabricatedfromporousnanocarbonsshowedsuperiorsupercapacitanceperformancewherehighspecificcapacitanceof368F/gat0.06A/gin5MKOHwerereported.Italsoexhibitedhighstability(96%over1700cycles)andenergydensityof13Wh/kg.Lowresistancevalueswereobtainedbyfittingtheimpedancespectra,thusindicatingtheavailabilityofthesematerialsassupercapacitorselectrode.Thepresentedmethodiscosteffectiveandalsoinlinewithwastetowealthapproach.

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简介：Avolume-basedmethodformeasuringparticle-sizedistribution(PSD)fractaldimensionsofporousmediumswasdevelopedbyemployinglasersize-analyzingtechnology.ComparedwithconventionalapproachesofusinghydrometerorscreentodeterminePSD,thismethodcanavoidcalculationerrorsandmeasuresmallersize-scaleporousmedium.Inthispapertheexperimentalporousmediumswerebrownsoil,kaolinandsandsoil.Amicro-orderofmagnitude(10^-5m)inparticle-sizeintervalcouldbeshowninPSDresultsofbrownsoilandkaolin.Theexperimentsindicatedthatbrownsoilhadanearlymono-fractalPSDcharacter,whilekaolinandsandsoilshowedmulti-fractalPSDcharacters.Bytheadsorptionisothermexperiments,thePSDfractaldimensionsofthesandsoilwerealsofoundtokeepalinearlyincreasingrelationwiththelinearadsorptiveparametersofthesoilsindifferentintervalstoadsorbbenzenefromaqueoussolution.

简介：多孔的硅是用热氧化和silanization的functionalized。HYSA抗体在这篇论文被使不能调动到多孔的表面。当BSA被纳入PS表面时，在思考光谱和光致发光光谱的变化被调查。结果证明PS的光山峰消失。在抗原抗体反应以后，更高轻的排放被观察并且也，红转移的思考光谱。因此，这研究为敏感没有标签的光免疫传感器的发展打一个基础。

简介：Themainrequirementsforbatteryseparatorsarehighporositywhichcanservepathwaysoflithiumionandspaceforgelelectrolytestoimpregnateinamembraneandmechanicalstrengthtoalloweasyhandlingforbatteryassembly.Generally,itappearsthetrade-offrelationshipbetweentheporosityandmechanicalstrengthofthemembrane.PVdFcompositemembranescontainingnano-sizeclayswereusedtoimprovethemechanicalstrengthofthemembranewithoutaffectingthemembraneporosity.Thecompositemembraneswerepreparedbyphaseinversionmethodcontrollingthemembranepreparationconditionssuchasretentiontime.Theresultantmembranesshowincreasedmechanicalpropertieswithsimilarmembraneporosityaround80%comparedtothepristinePVdFmembrane.Incorporationofnonoclaycanbeconsideredasaneffectivemethodtoimprovethemechanicalstrengthinporousmembranesupports,especiallyinaseparator.

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简介：ObjectiveToreportutilityofMedporframeworksinauricularreconstructionandmanagementofframeworksprotrusion.MethodsRetrorespectivelyanalysisofclinicalinformationin31patientswhounderwentauricularreconstructionfromApril2000toOctober2002.ResultsAll31reconstructedauricleswereingoodconditionattwoweekspostoperatively.Frameworkprotrusionoccurredlaterin11patients.Theframeworkwasretainedin8ofthesecasesaftersecondaryrepair,buthadtoberemovedin3patients.In27patients,thereconstructedauriclewasratedasestheticallysuccesful.ConclusionMedporframeworkprotrusionislikelytooccurwhenskintensionishighwithminimalsofttissuecoverageovertheframeworkandcanresultfromimpactbystrongexternalforce.Despitetheconcernofprotrusion,Medporframeworkscanbeusedinplaceofautologouscartilaginousgraftinauricularreconstruction.

简介：Poroussiliconsamplesarepreparedbypulseelectrochemical-etchingandDCelectrochemical-etching.Theeffectsofdifferentpreparationmethodsonluminescentcharacterizationofporoussiliconareinvestigated.ComparedwithDCelectrochemical-etching,pulseelectrochemical-etchingproducestheporoussiliconcharacterizedbyamoreevensurface,astrongerluminescenceandaPLblueshifttoacertaindegree.

简介：这篇论文处理磁电机水动力学(MHD)当没有滑倒状况不再是有效的时，在多孔的媒介Oldroyd8常数液体流动。修改Darcy的法律在流动建模被使用。有非线性的边界条件的非线性的微分方程与一种反复的技术在联合用有限差别计划数字地被解决。数字结果为Couette，Poiseuille和概括Couette流动被获得。效果在速度侧面上滑动参数被讨论。

简介：Inordertounderstandthebreakupperformanceofcoaxialporousinjectors,thespraysofcoaxialporousinjectorswithtwodifferentporousmaterialcylinderlengthswerecomparedwiththoseofconventionalshearcoaxialinjectors.Toallowcomparison,thewallinjectionlengthsweredesignedtobeequivalenttothevalueoftherecessdepth.Coldflowsprayswerevisualizedusingback-litphotographymethodsandanalyzedquantitativelywithalaserdiffractionapparatus,inordertostudytheeffectsofthemomentumfluxratioandWebernumberonthebreakupforeachtypeofinjector.Incaseoftheshearcoaxialinjector,thelargeliquidcorewasobservedinlowairmassflowratecondition.However,thedestabilizationoftheliquidjetfromthecoaxialporousinjectorisalmostcompletewithintheinnerregion,neartheinjectorfaceplate.Additionally,betterbreakupperformanceinlowgasflowrateconditionwasobtainedwhentheporouscylinderlengthdecreased,whiletheshearcoaxialinjectorsshowedbetterbreakupefficiencywhentherecesslengthincreased.Inconclusion,thedifferentbreakupprocesscausedbytheradialmomentumintheinnerregionoftheporousinjectordisintegratedtheliquidcore.

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简介：与在2050%的范围有低、中等的孔的多孔的金属上的最近的注意一致，这份报纸在sintered铜协议的机械性质上学习孔的效果。实验被设计在铜协议的wear率上调查孔，应用压力和滑动速度的效果，导致发现孔的效果和wear上的wear测试的应用应力评价，这比滑动速度的近似类似、高。有关压缩力量上的孔的效果的调查显示高孔的紧缩的展出可看作是相同的最终的力量的stressstrain曲线指，尽管低孔的协议显示出有弹性的塑料行为的不同阶段。

简介：多孔的堇青石陶艺在11001350°C从煤苍蝇灰和基本的镁碳酸盐的混合物被准备。孔，曲折力量和在1300°C的样品sintered的热膨胀系数被估计是26%，65MPa和4.21×10−6/°C,分别地。形成进步的动力学被伴有XRD，SEM和孔测量的逐步的等温的dilatometry(SID)调查。从SID的等温的收缩数据能很好被分析根据Makipirtti-Meng开发的实验的率方程得到运动参数，这被发现，dY/dt=nk(T)Y(1−Y)(Y/1−Y)Y在烧结过程和n期间是部分收缩的n/1,少些是一种尺寸部件。为9001000°C和10501150°C的明显的活化能ΔE价值分别地是1294和1778kJ/mol。

简介：ExperimentsfordeterminingceriumisotopeionexchangerateswithmacroporousresinsAmberlyst15,D001andXN1010arediscribed.ThekineticsoftheisotopeionexchangereactionhasbeenexaminedbyasimpletheoreticalequationofintraparticleeffectivediffustivityDeinaporousionexchanger.Theionexchangeproceedesbydiffusionwithinthemacroporesandthesolidphaseoftheresin,DeofceriumwasaffectedbytheconcentrationofthebulksolutionCandwasseparatedintoamacroporediffusivityD^-pandasolidphasediffusivityD^-gbytheequation.Thediffusioncoefficientsoftheexchangingionareshowntohavethevaluesinthemacroporescomparablewiththoseinthebulksolutionandtohavethevaluesinthesolidphasecomparablewiththoseingelresinwiththesamecrosslinkageastheresinsusedfortheexperiments.

简介：基于连续统的有限变丑理论和poroelastic理论，为在自然、起始的坐标的浸透液体的多孔的媒介(FSPM)的acoustoelastic理论被开发在波浪速度上调查有效压力和液体毛孔压力的影响。第一，在FSPM的大部分静态的变丑前上附加的一个小动态运动的假设产出自然、起始、最后的配置，谁的排水量，紧张，和压力稳固骨骼并且在一个FSPM粒子的液体能分别地在自然、起始的坐标被描述。第二，从运动和FSPM的非线性的组成的关系的介绍的最后状态的方程的平衡的起始状态的方程的减法为小动态运动导致运动的方程。第三，同类的变丑前的考虑和小动态运动的飞机泛音形式给一个acoustoelastic方程，它为快纵的波浪的关系提供分析明确的表达，快砍波浪，慢砍波浪，并且有稳固骨骼的压力和液体毛孔压力的慢纵的波浪。最后，在靠近毛孔的jacketed条件，开毛孔的jacketed条件，传统的unjacketed条件，和triaxial状况下面的各向同性的FSPM作为一个例子被拿讨论速度快并且慢砍沿着起始的主要稳固骨骼的紧张之一的方向宣传的波浪。详细讨论证明FSPM的波浪速度被有效压力和液体毛孔压力通常影响。仅仅，液体毛孔压力在FSPM的波浪速度上有小效果应用起始的主管的部件稳固骨骼强调或紧张是相等的，它与以前的试验性的结果一致。

简介：Athermodynamicequationofstate(EOS)isderivedtobeappropriateforinvestigatingthethermodynamicvariationsalongisobaricpathstopredictthecompressionbehaviourofporousmaterials.ThisEOSmodelistestedonporousiron,copper,leadandtungstenwithdifferentinitialdensities.ThecalculatedtemperatureandHugoniotareingoodagreementwiththecorrespondingexperimentalandtheoreticaldatapublishedpreviously.Itisinterestingthatthismodelcansatisfactorilypredicttheshockbehaviourofporousmaterialsoverawiderangeofporosityandpressure.

简介：Thewave-seabedinteractionissueisofgreatimportanceforthedesignoffoundationaroundmarineinfrastructures.Mostpreviousinvestigationsforsuchaproblemhavebeenlimitedtouncoupledoronewaycoupledmethodsconnectingtwoseparatedwaveandseabedsubmodelswiththecontinuityofpressuresattheseabedsurface.Inthisstudy,astronglycoupledmodelwasproposedtorealizebothwaveandseabedprocessesinasameprogramandtocalculatethewavefieldsandseabedresponsesimultaneously.Theinformationbetweenwavefieldsandseabedfieldswerestronglysharedandthusresultsinamoreprofoundinvestigationofthemechanismofthewave-seabedinteraction.Inthisletter,thewaveandseabedmodelswerevalidatedwithpreviousexperimentaltests.Then,asetofapplicationofpresentmodelwerediscussedinpredictionofthewave-inducedseabedresponse.Numericalresultsshowthewave-inducedliquefactionareaofcoupledmodelissmallerthanthatofuncoupledmodel.

简介：Inthispaperweconsiderthefollowingproblemui=△u^m+bi(u^n)xLetu=u(x,t)beacontinuousweaksolutionoftheequationinR^N×(0,T)forsomeT>0.Thenweconclude;CorrespondingtouthereisauniquenonnegativeBorelmeasurevonR^Nwhichistheinitialtraceofu;thereistheglobalinequalityofHarnacktypeforu;theinitialtracevmustbelongtoacertaingrowthclass;consequently,bycombiningtheresultsmentionedaboveau-niquenessconclusionisestablished.