简介：TheBaCe0.9Y0.1O3-δ(BCY)perovskitemembranewassuccessfullysynthesizedbyliquidcitratemethod.ThephasestructureofthepowderwascharacterizedbyX-raydiffraction(XRD).Scanningelectronmicroscopy(SEM)wasusedtocharacterizemicrostructuresofthemembranesinteredundervariousconditions.Sinteringtemperaturesanddwelltimeduringsinteringinfluencethefinalmicrostructureoftheceramic.Resultsshowedthatincreasingsinteringtemperatureresultedinadensemembranewithcleargrains.Anincreaseofdwelltimewasfavorabletoproducemembraneswithlargergrainsinthesinteredceramics.Adensityof5.87g/cm3wasreachedforthemembraneaftersinteringat1200℃withdwelltimeof10h.Thisresultedintheformationofdensemembraneswithclearstructureandaveragegrainsizeof0.27mm.TheinfluenceofmicrostructureonthehydrogenpermeationfluxthroughBCYwasobservedbymeasuringthehydrogenpermeationflux,andtheresultsshowedthathydrogenpermeationfluxincreaseswithincreasingtheaveragegrainsizeofthemembrane.FromH2permeationrates,itwasfoundthatbulkdiffusionratherthansurfacereactionplayedthedominantroleinH2transport.

简介：大规模膜结构的导致风的回答，博览会大街，在这研究被评估。为了在房顶上获得风压力分发，出现，风隧道测试被执行。膜房顶上的风压力的简短分析首先被进行然后结构的导致风的回答的分析在时间领域用一个数字不可分的方法被执行。在计算的过程，几何非线性被考虑。结果显示那个平均数，RSM和当来临的流动速度增加时，回答非线性地增加的结构的山峰价值。强壮的非线性的特征在排水量回答被观察，而节的应力和电报的回答轴的力量看最小的非线性的性质膜结构什么时候被使遭到弯屈负担。因为背景部件是全部的动态反应的主导的部分，反响的部件是太小的，抑制比率的不同价值仅仅在结构的RSM反应上有最小的影响。作为从0.02～0.05的抑制比率增加，垂直排水量，节的压力和电报的RMS回答在8.1%，6.7%和17.9%的轴的力量减少分别地。因为吝啬的部件在导致风的反应起一个重要作用，阵风反应因素的价值不为博览会大街高。

简介：Thecatalystlayer(CL)ofprotonexchangemem-branefuelcell(PEMFC)involvesvariousparticlesandporesinmeso-scale,whichhasanimportanteffectonthemass,charge(protonandelectron)andheattransportcoupledwiththeelectrochemicalreactions.Thecoarse-grainedmoleculardynamics(CG-MD)methodisemployedasameso-scalestructurereconstructiontechniquetomimictheself-organizationphenomenainthefabricationstepsofaCL.Themeso-scalestructureobtainedattheequilibriumstateisfurtheranalyzedbymoleculardynamic(MD)softwaretoprovidethenecessarymicroscopicparametersforunderstandingofmulti-scaleand-physicsprocessesinCLs.Theprimaryporesizedistribution(PSD)andactiveplatinum(Pt)surfaceareasarealsocalculatedandthencomparedwiththeexperiments.Inaddition,wealsohighlighttheimplementationmethodtocombinemicroscopicelementarykineticreactionschemeswiththeCG-MDapproachestoprovideinsightintothereactionsinCLs.TheconceptsfromCGmodelingwithparticlehydrodynamics(SPH)andtheproblemsoncouplingofSPHwithfiniteelementmodeling(FEM)methodsarefurtheroutlinedanddiscussedtounderstandtheeffectsofthemeso-scaletransportphenomenainfuelcells.

简介：BackgroundAnimalmodelsofhyperlipidemiawereestablishedbyfeedingrabbitswithhigh-cholesteroldiet,andthechangesinstructureandfunctionofcellmembraneinrabbitswerealsoreducedbyhyperlipidemia.Thus,thealternationsinerythrocytemembranelipidperoxidation(EMLP)andfluidityinrabbitsinducedbyhigh-cholesteroldietwereresearchedbyus.MethodsFourteenrabbitsweresubjectedtohigh-cholesteroldiet(cholesterol2g/d)andtheother14rabbitstocommondieteverydayforconsecutivetwomonths,plasmatotalcholesterol(TC),andbloodlipidsaswellasEMLPandfluidityweremeasuredbeforeandafterthefeeding.ResultsComparedwiththefeedingbefore,levelsofTCandlowdensitylipoproteincholesterol(LDL-C)weresignificantlyraised,thoseoferythrocytemembranelowdensitylipoproteincholesterol(MLDL-C),membraneconjugateddiene(MCD),erythrocytemalonaldehyde(RMDA)weresignificantlyincreased,whilethoseoferythrocytesuperoxidedismutase(R-SOD),membranefluidity(M-Flu)andmembranehighdensitylipoprotein-cholesterol(MHDL-C)weresignificantlydecreasedinexperimentalgroup,andtherewerenochangesincontrolgroup.ConclusionsHigh-cholesteroldietinduceslipidperoxidationandlowerfluidityoferythrocytemembrane.

简介：Objective:Laryngealreconstructionisneededtopreservelaryngealfunctioninpatientswhohaveundergoneextensiveverticalorfrontalpartiallaryngectomy.However,theprocedureremainsadifficultchallenge.Severalreconstructiontechniqueshavebeendescribed,butthesetechniquesposerisksofcomplicationssuchaslaryngealstenosis.Thisstudyaimedtoevaluatethepostoperativecourseandfunctionaloutcomesofanewtechniquethatcombinedamuscle-pediclehyoidboneandathyrohyoidflapduringlaryngealreconstructionaftertumorresection.Methods:Fourpatientsunderwentextensiveverticalpartialorfrontalpartiallaryngectomyforcancer.Aftertumorresection,laryngealreconstructionwasperformedusingtheproposedtechnique.Postoperativerecoverytime,complications,andoncologicresultswereevaluated.Results:Thefourpatientsweresuccessfullytreatedwiththeproposedtechnique.Nodyspnea,dysphagia,ordeathoccurredduringthepostoperativecourse.Decannulationwasperformedafteramedianof3days.Theaveragepostoperativehospitalstaywas7days.Short-termpostoperativefunctionalrecoverywasnormal.Nolaryngealstenosisortumorrecurrencewasobservedinanyofthefourpatientsafterafollow-upperiodofmorethan24months.Conclusion:Thecombinationofthemuscle-pediclehyoidboneandthethyrohyoidflapisareliableprocedureforlaryngealreconstructionafterextensiveverticalpartialorfrontalpartiallaryngectomy.